Shielding gas communicating assembly, gas valve device and portable laser welding machine

Abstract

The utility model discloses a shielding gas communication assembly, a gas valve device and a portable laser welding machine, and relates to the technical field of laser processing. The protective gas communicating assembly comprises a communicating base, the communicating base is provided with a first gas inlet and a first gas outlet, the first gas inlet and the first gas outlet are communicated through a first connecting channel, the first gas inlet is used for communicating with the gas bottle, and the first gas outlet is used for communicating with the gas communicating assembly. The technical problem that an existing gas cylinder replacement mode is tedious is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a quick-release protective gas device and a welding machine. Background Art

[0002] A gas cylinder is a container capable of storing gas, and is widely used in industrial manufacturing and other fields to store protective gas. By connecting and arranging gas cylinders, protective gas can be blown towards a workpiece during the processing and manufacturing process. The amount of gas stored in a gas cylinder is certain, and the gas cylinder needs to be replaced after use. The existing gas cylinder replacement method is relatively cumbersome. Summary of the Utility Model

[0003] In view of this, the utility model provides a protective gas connection assembly, a gas valve device and a portable laser welding machine, which are used to solve the technical problem of the cumbersome existing gas cylinder replacement method.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] In a first aspect, a protective gas connection assembly includes:

[0006] A connection seat is provided with a first air inlet and a first air outlet. The first air inlet and the first air outlet are connected through a first connection channel. The first air inlet is used to connect to a gas cylinder, and the first air outlet is used to connect to a gas using component.

[0007] In one embodiment, the connection seat is further provided with a second air inlet, and the second air inlet is connected to the first connection channel. The second air inlet is used to connect to an external gas source.

[0008] In one embodiment, the protective gas connection assembly further includes a flow control member. The flow control member is installed on the connection seat and can move relative to the connection seat. During the movement of the flow control member relative to the connection seat, it can extend into the first connection channel to control the flow rate of the gas flowing out from the first air outlet.

[0009] In one embodiment, the protective gas connection assembly further includes an electromagnetic valve. The electromagnetic valve is connected to the first air outlet and is used to control the gas flow rate of the gas using component.

[0010] In one embodiment, a notch is formed on the side wall of the first air inlet. The notch has an inlet port communicating with the outside and an extension section communicating with the inlet port. The inlet port is used for one end of a connecting member to extend into the extension section, and the extending direction of the extension section is set at an angle to the extending direction of the connecting member.

[0011] In a second aspect, a gas valve device is proposed. The gas valve device includes a first connection end and a second connection end that are interconnected. The first connection end is in communication with the first air inlet of the protective gas connection assembly, and the second connection end is in communication with the gas cylinder. The gas valve device can regulate the gas flow rate from the gas cylinder into the first air inlet.

[0012] In one embodiment, the gas valve device includes a connecting member. The first connection end is in communication with the connecting member. A protruding portion is provided on the outer wall of one end of the connecting member, and it can be connected to the first air inlet by clamping the connecting seat.

[0013] In one embodiment, an inflation port is further provided on the gas valve device. The inflation port is in communication with the second connection end to introduce external gas and mix it with the gas in the gas cylinder.

[0014] In one embodiment, an inflation switch is further installed on the body of the gas valve. The inflation switch is movably connected to the body of the gas valve device. The inflation switch has a first position that blocks the communication between the inflation port and the second connection channel and a second position that allows the communication between the inflation port and the second connection channel on its movement path relative to the body of the gas valve device.

[0015] In a third aspect, a portable laser welding machine is proposed, which includes the protective gas connection assembly and the gas valve device of the above technical solution. The welding machine further includes a box body, a gas-using component, and a gas cylinder. The protective gas connection assembly is fixed inside the box body. The gas cylinder is in communication with the protective gas connection assembly through the gas valve device and is in communication with the gas-using component through the protective gas connection assembly. The gas cylinder is detachably received inside the box body.

[0016] Implementing the embodiments of the present utility model will at least have the following beneficial effects:

[0017] The above-mentioned protective gas connection assembly is applied to the gas valve device and the portable laser welding machine, which can make itself, the gas valve device, and the welding machine have the technical effect of being convenient for disassembling and replacing the gas cylinder. Specifically, the protective gas connection assembly of the present utility model can replace the existing connection method of the gas cylinder and play an intermediate connection role through the connection seat, which can facilitate the installation and disassembly of the gas cylinder and solve the technical problem of the cumbersome existing gas cylinder replacement method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Structural schematic diagram of the connection assembly in one embodiment

[0020] Figure 2 Schematic diagram of the explosion structure of the air valve device and the gas cylinder in one embodiment;

[0021] Figure 3 is Figure 2 Enlarged structure diagram of part A in

[0022] Figure 4 Schematic diagram of the connection structure of the communication seat, air valve and flow control component in one embodiment;

[0023] Figure 5 is Figure 4 Cross-sectional view of the structure shown in

[0024] Wherein: 1. Communication seat; 11. First air inlet; 12. First air outlet; 13. First connection channel; 14. Second air inlet; 15. Notch; 151. Inlet port; 152. Extension section; 2. Flow control component; 3. Air pipe; 4. Solenoid valve; 5. Air valve; 51. Second connection channel; 52. Inflation port; 53. Inflation switch; 6. Connector; 61. Protrusion; 7. Gas cylinder. Detailed implementation manners

[0025] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] The following is combined with Figures 1-5The following further elaborates in detail on the protective gas connection assembly, gas valve device, and portable laser welding machine involved in the present utility model.

[0029] In an embodiment of the protective gas connection assembly, the protective gas connection assembly includes a connection seat 1. The connection seat 1 is provided with a first air inlet 11 and a first air outlet 12. The first air inlet 11 and the first air outlet 12 are connected through a first connection channel 13. The first air inlet 11 is used to connect to a gas cylinder 7, and the first air outlet 12 is connected to a gas-using assembly.

[0030] In this embodiment, the protective gas connection assembly can replace the existing connection method of the gas cylinder 7 and play an intermediate connection role through the connection seat 1, which can facilitate the installation and disassembly of the gas cylinder 7 and solve the technical problem of the cumbersome replacement method of the existing gas cylinder 7.

[0031] In an embodiment of the protective gas connection assembly, the connection seat 1 is further provided with a second air inlet 14. The second air inlet 14 is connected to the first connection channel 13, and the second air inlet 14 is used to connect to an external gas source.

[0032] In this embodiment, by setting the second air inlet 14, it is possible to connect to the external gas source through the second air inlet 14 while the gas in the gas cylinder 7 is exhausted. It can be understood that, taking the welding machine as an example, the gas cylinder 7 can be used as an internal gas source, and then an external gas source can be connected through the second air inlet 14, thus realizing the alternating use of internal and external gas sources. After the gas in the internal gas cylinder 7 is exhausted, the external gas source can be connected through the second air inlet 14, so that gas can be continuously provided during the process of replacing the gas cylinder 7.

[0033] In an embodiment of the protective gas connection assembly, the protective gas connection assembly further includes a flow control member 2. The flow control member 2 is installed on the connection seat 1 and can move relative to the connection seat 1. During the movement of the flow control member 2 relative to the connection seat 1, it can extend into the first connection channel 13 to control the flow rate of the gas flowing out of the first air outlet 12.

[0034] Specifically, the flow control member 2 can be threadedly connected to the connection seat 1, that is, it acts as a rotary valve. By rotating the flow control member 2, the flow control member 2 can be driven to extend into the first connection channel 13, thereby achieving the effect of occupying space and reducing the gas flow rate. Of course, the flow control member 2 can also be of a push-pull type, a flap opening and closing type, etc. No matter what structure it is, it needs to be able to maintain a stable relative position with the connection seat 1 after adjustment. For example, the threaded type can be locked through threads, and the push-pull type and the flap opening and closing type can be fixed to the connection seat 1 by means of clamping. For example, holes are opened at various places on the flow control member 2, and then the fixation with the connection seat 1 is completed by passing a pin through.

[0035] In an embodiment of the protective gas connection assembly, the protective gas connection assembly further includes a solenoid valve 4, which is connected to the first air outlet 12 and is used to control the gas flow rate of the gas-using assembly.

[0036] In this embodiment, the solenoid valve 4 can block the gas from entering the gas-using assembly, acting as a switch. The solenoid valve 4 can be electrically controlled or mechanically controlled, facilitating opening and closing. The flow control member 2, the air valve 5, and the inflation switch 53 in the above embodiments include but are not limited to pure mechanical structures, that is, manually regulated. By setting the solenoid valve 4, the flow rate can be adjusted according to the usage requirements of the gas-using assembly. Specifically, the solenoid valve 4 is connected to the gas-using assembly through an air pipe 3.

[0037] In an embodiment of the protective gas connection assembly, the gas cylinder 7 is horizontally placed or vertically placed.

[0038] The present utility model also relates to a gas valve device. In one case, the protective gas connection assembly in the previous embodiment is adopted. The gas valve device further includes a connecting member 6. The connecting member 6 is arranged between the gas cylinder 7 and the connection seat 1. One end of the connecting member 6 is connected to the first air inlet 11, and the other end is connected to the gas cylinder 7. A protruding portion 61 is provided on the outer wall of the connecting member 6. A notch 15 is formed on the side wall of the first air inlet 11. The notch 15 has an access port 151 communicating with the outside and an extension section 152 communicating with the access port 151. The access port 151 is used for the protruding portion 61 to extend into the extension section 152. The extending direction of the extension section 152 is arranged at an angle with the extending direction of the connecting member 6 so as to be able to clamp the connecting member 6 by clamping the protruding portion 61.

[0039] In this embodiment, in use, the protruding portion 61 on the connecting member 6 and the notch 15 on the connection seat 1 have the effects of quick clamping and quick release of the clamping. In this way, the gas cylinder 7 and the connecting member 6 can be quickly detached from the connection seat 1 together, facilitating replacement, and further solving the technical problem of the cumbersome replacement method of the existing gas cylinder 7.

[0040] In an embodiment of the gas valve device, the number of notches 15 is multiple, and the notches 15 are arranged at intervals along the circumferential direction of the side wall forming the first air inlet 11. The number of protruding portions 61 is multiple, and the protruding portions 61 are arranged at intervals along the circumferential direction of the connecting member 6 and can extend into the notches 15 one by one.

[0041] In this embodiment, by providing multiple notches 15 and multiple protruding portions 61, the effect of uniform force application can be achieved during clamping, thereby improving the stability of clamping.

[0042] Specifically, the extended shape of the notch 15 can be L-shaped. After the protruding portion 61 on the connecting member 6 enters the notch 15 and rotates around the axis, it can be stuck on the inner wall forming the notch 15 to achieve the axial limiting effect, and the disassembly method is simple. Only by simply rotating and aligning with the inlet port 151 of the notch 15 can the limitation be released.

[0043] In an embodiment of a gas valve device, the gas valve device includes a gas valve 5. The gas valve 5 includes a second connection channel 51, a first connection end, and a second connection end that are interconnected. The first connection end is connected to the gas cylinder 7 to be able to regulate the gas flow rate entering the first air inlet 11 from the gas cylinder 7, and the second connection end is connected to one end of the connecting member 6 that stands on the protruding portion 61.

[0044] Combined with the previous embodiments, in the previous embodiments, the control of the gas flow rate at the first air outlet 12 is achieved through the flow control member 2. In this embodiment, by setting the gas valve 5, the flow rate can be further restricted when the gas enters the first air inlet 11. Thus, when combined with the flow control member 2, a better regulation effect can be achieved, and the gas outlet volume of the gas cylinder 7 can also be directly adjusted near the outlet of the gas cylinder 7, thereby improving the safety and stability of the gas cylinder 7.

[0045] In an embodiment of a gas valve device, an inflation port 52 is further provided on the gas valve 5. The inflation port 52 is connected to the second connection channel 51 to be able to introduce external gas and mix it with the gas in the gas cylinder 7.

[0046] In this embodiment, by setting the inflation port 52 and connecting the inflation port 52 to the second connection channel 51, the inflation port 52 can be connected to a gas source such as nitrogen. Thus, during the process of the gas cylinder 7 delivering the gas in the bottle to the connection seat 1, the inflation port 52 can also introduce other gases to mix with the gas in the bottle, improving the applicability of the connection mechanism and meeting the needs of different manufacturers.

[0047] In an embodiment of a gas retaining valve device, an inflation switch 53 is further installed on the body of the gas valve 5. The inflation switch 53 is movably connected to the body. The inflation switch 53 has a first position that blocks the connection between the inflation port 52 and the second connection channel 51, and a second position that connects the inflation port 52 and the second connection channel 51 on its movement path relative to the body.

[0048] Combined with the previous embodiments, the connection method between the inflation switch 53 and the gas valve 5 in this embodiment can be the same as the connection method between the flow control member 2 and the connection seat 1 in the previous embodiments, which will not be elaborated here. By setting the inflation switch 53 in this embodiment, the effect of controlling whether the inflation port 52 is connected to the second connection channel 51 and the gas flow rate after connection can be achieved, so that it is convenient for the user to regulate.

[0049] In addition, it should be emphasized in combination with the previous embodiments that since the protective gas connection assembly is used for the flow of gas, sealing treatment is required at each connection position. The sealing treatment method is not limited, and sealing rings, sealing sleeves, etc. can be used, and any existing sealing method that can achieve sealing can be adopted.

[0050] The present utility model also relates to a portable laser welding machine, which includes the protective gas connection assembly and the gas valve device in the previous embodiments. The welding machine further includes a box body, a gas-using assembly, a gas cylinder, and a support mechanism. The protective gas connection assembly and the support mechanism are both housed in the box body. The support mechanism is used for elastically supporting the gas cylinder 7, and the first air outlet 12 is communicated with the gas-using assembly.

[0051] In this embodiment, by applying the protective gas connection assembly in the previous embodiments, the effect of quickly disassembling the gas cylinder 7 can be achieved, so that it is convenient to replace.

[0052] In addition, in combination with the previous embodiments, it can be understood that the gas cylinder 7 is arranged inside the box body, that is, the internal gas source of the welding machine, and the second air inlet 14 is communicated with the external gas source, which is convenient to switch when replacing the gas cylinder 7. The external gas source and the gas cylinder 7 can work simultaneously or separately.

[0053] In an embodiment of the welding machine, the gas cylinder 7 is horizontally arranged.

[0054] In the prior art, the gas cylinder 7 is vertically placed outside the welding machine and is independent of the box body. The vertical arrangement is also based on safety considerations. When placed in the box body, it will increase the height of the box body and thus increase the volume of the box body, resulting in extra space. In this embodiment, by arranging the gas cylinder 7 horizontally, compared with the vertical arrangement, it can be conveniently arranged in the accommodation space, and compared with vertically placing it in the box body, the overall volume of the box body is smaller, which is beneficial to improving the stability of the welding machine.

[0055] In addition, it should be emphasized that the reason why the gas cylinder 7 can be horizontally arranged without worrying about safety issues is because of the connection mechanism of the present utility model. Through the cooperation between the flow control member 2, the gas valve 5, and the solenoid valve 4, the gas valve 5 has a pressure relief structure. When the pressure exceeds a certain safety value, it can automatically relieve pressure, thus ensuring the safety when the gas cylinder 7 is horizontal.

[0056] By setting the support mechanism, the gas cylinder 7 can be better stabilized. The support mechanism can be in the form of having a bracket and installing an elastic material on the bracket. The bracket can play a role in limiting and clamping the gas cylinder 7, and the elastic material can play an elastic shock-absorbing effect. A pad-like structural member supported by an elastic material such as silica gel can also be set, and a depression is provided on the pad-like structural member to play a role in stabilizing the gas cylinder 7, reducing the risk of gas fluctuation in the gas cylinder 7.

[0057] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0058] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A protective gas communication component, characterized in that: include: A connecting seat, provided with a first air inlet and a first air outlet, wherein the first air inlet and the first air outlet are connected through a first connecting channel, the first air inlet is used to connect to a gas cylinder, and the first air outlet is used to connect to a gas-using component; A notch is provided on the side wall of the first air inlet, and the notch has an inlet port connected to the outside and an extension section connected to the inlet port, the inlet port is used for allowing one end of the connector to extend into the extension section, and the extension direction of the extension section is set at an angle to the extension direction of the connector.

2. The protective gas communication assembly according to claim 1, characterized in that: The connecting seat is also provided with a second air inlet, the second air inlet is connected with the first connecting channel, and the second air inlet is used to connect with an external air source.

3. The protective gas communication assembly according to claim 1, characterized in that: The protective gas connecting component also includes a flow control component, which is installed on the connecting seat and can move relative to the connecting seat. During its movement relative to the connecting seat, the flow control component can extend into the first connecting channel to control the flow of gas flowing out of the first gas outlet.

4. The protective gas communication assembly according to claim 1, characterized in that: The protective gas communication component also includes a solenoid valve, which is connected to the first gas outlet and is used to control the gas flow of the gas component.

5. A gas valve device, characterized in that: The gas valve device comprises a first connecting end and a second connecting end which are connected to each other, the first connecting end is connected to a first gas inlet of the protective gas communication component, the second connecting end is connected to a gas cylinder, and the gas valve device can regulate the gas flow from the gas cylinder into the first gas inlet; The air valve device includes a connecting piece, the first connecting end is connected to the connecting piece, and a protrusion is provided on the outer wall of one end of the connecting piece, which can be connected with the first air inlet by clamping the connecting seat.

6. The gas valve device according to claim 5, characterized in that The gas valve device is also provided with a gas filling port, which is communicated with the second connecting end so as to be able to introduce external gas and mix it with the gas in the gas cylinder.

7. The gas valve device according to claim 6, characterized in that An inflation switch and a second connecting channel are also installed on the main body of the air valve. The inflation switch is movably connected to the main body of the air valve device. The inflation switch has a first position that blocks the connection between the inflation port and the second connecting channel, and a second position that connects the inflation port and the second connecting channel on its movable path relative to the main body of the air valve device.

8. A portable laser welding machine, comprising the protective gas connecting assembly according to any one of claims 1 to 4 and the gas valve device according to any one of claims 5 to 7, characterized in that: The welding machine also includes a box, a gas-using component and a gas cylinder. The shielding gas connecting component is fixed inside the box. The gas cylinder is connected to the shielding gas connecting component through the gas valve device and is connected to the gas-using component through the shielding gas connecting component. The gas cylinder is detachably accommodated inside the box.

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