Gas adjusting device and laser cutting equipment

Abstract

The utility model discloses a gas adjusting device and laser cutting equipment, the gas adjusting device comprises a valve seat, one end of the valve seat is provided with a first gas inlet and a second gas inlet, and the other end of the valve seat is provided with a gas outlet; the two-way valves are arranged on the valve seats; at least the part, provided with the air inlet port and the air outlet port, of the proportioning valve is embedded into the valve seat; and the two control valves are arranged in the valve seat. According to the scheme, due to the fact that the portion, at least provided with the air inlet port and the air outlet port, of the proportioning valve is embedded into the valve seat, the overall space is compact, the size of the overall device is effectively reduced, the proportioning valve is directly clamped into the valve seat, and connection between the proportioning valve and the valve seat is facilitated. The two-way valve, the proportion adjusting valve and the control valve are directly integrated on the valve seat, the integration degree is high, assembly and maintenance are convenient, and convenience is brought to use of products.

Description

Technical Field

[0001] The present application relates to the field of laser processing technology, and in particular to a gas regulating device and laser cutting equipment. Background Art

[0002] In laser cutting equipment, air (nitrogen) and oxygen are common auxiliary gases to assist laser cutting of various metals. The ability to control the auxiliary gas directly affects the stability, efficiency and precision of laser cutting. Common gas control modules are composed of two-way valves, proportional valves and one-way valves. The two-way valve controls the air intake and air shutoff, the proportional valve performs precise control on the oxygen path that requires precise control, and the one-way valve prevents the reverse flow of gases of different working fluids. The overall structure formed by this structure can meet the process requirements of laser processing.

[0003] In the related art, each valve body in the pore module has low integration and large volume, which will cause unnecessary space waste for the laser cutting equipment as a whole. Utility Model Content

[0004] The main purpose of the present application is to provide a gas regulating device and laser cutting equipment, wherein the gas regulating device has high integration, compact space, and effectively reduces the volume.

[0005] To achieve the above objectives, the present application proposes a gas regulating device, comprising:

[0006] A valve seat, wherein a first air inlet and a second air inlet are disposed at one end of the valve seat, and an air outlet is disposed at the other end of the valve seat;

[0007] two two-way valves, wherein the two-way valves are arranged on the valve seat;

[0008] A proportional control valve, wherein at least a portion of the proportional control valve having an air inlet port and an air outlet port is embedded in the valve seat;

[0009] two control valves, wherein the control valves are arranged inside the valve seat;

[0010] The first air inlet is communicated with the air inlet port of the first two-way valve of the two two-way valves, the air outlet port of the first two-way valve is communicated with the air inlet port of the first control valve of the two control valves, and the air outlet port of the first control valve is communicated with the air outlet;

[0011] Among them, the second air inlet is connected to the air inlet port on the second two-way valve of the two two-way valves, the air outlet port of the second two-way valve is connected to the air inlet port of the proportional control valve, the air outlet port of the proportional control valve is connected to the air inlet port of the second control valve of the two control valves, and the air outlet port of the second control valve is connected to the air outlet.

[0012] In one embodiment, the gas outlet port of the first control valve and the gas outlet port of the second control valve are connected to the gas outlet through confluence.

[0013] In one embodiment, the valve seat includes a first seat body, a second seat body and a third seat body connected in sequence;

[0014] The first air inlet and the second air inlet are both located on a side of the first seat away from the second seat, and the air outlet is located on a side of the third seat away from the second seat; two first channels and two second channels are provided in the first seat, and a confluence channel is provided in the third seat, and the confluence channel is used to connect the air outlet ports of the two control valves and the air outlet;

[0015] The two two-way valves are located on the upper surface of the first seat body, the portion of the proportional control valve having at least an air inlet port and an air outlet port is embedded in the second seat body, and the two control valves are both arranged inside the third seat body;

[0016] Wherein, the first air inlet is communicated with the air inlet port on the first two-way valve through the first channel, and the air outlet port on the first two-way valve is communicated with the air inlet port of the first control valve through the second channel;

[0017] The second air inlet is communicated with the air inlet port on the second two-way valve through another of the first channels, and the air outlet port on the second two-way valve is communicated with the air inlet port on the proportional control valve through another of the second channels.

[0018] In one embodiment, the gas regulating device further comprises a first connecting block, a second connecting block and a third connecting block, the first connecting block is provided with a first through hole, the second connecting block is provided with a second through hole, and the third connecting block is provided with a third through hole;

[0019] The first connection block and the second connection block correspond to the air inlet port and the air outlet port on the proportional control valve, and the second connection block is arranged at the air inlet port of the second control valve;

[0020] The third connecting block is arranged at the air inlet port of the first control valve;

[0021] The air outlet port on the first two-way valve is connected to the air inlet port of the first control valve through the second channel and the third through hole in sequence;

[0022] The outlet port on the second two-way valve is connected to the inlet port on the proportional control valve through another second channel and the first through hole in sequence, and the outlet port on the proportional control valve is connected to the inlet port of the second control valve through the second through hole.

[0023] In one embodiment, the gas regulating device further comprises a first sealing ring, an outer diameter of an end of the second control valve facing the second through hole is smaller than an inner diameter of the second through hole, and an annular groove is provided at an end of the second control valve facing the second through hole;

[0024] When one end of the second control valve facing the second through hole is located in the second through hole, the first sealing ring is located in the annular groove, and the first sealing ring abuts against one end of the second connecting block facing the second control valve.

[0025] In one embodiment, the gas regulating device further comprises an elastic member, a mounting hole is provided inside the third seat body, and the second control valve is located in the mounting hole;

[0026] The elastic member is sleeved on the second control valve, and one end of the elastic member away from the second connecting block abuts against the inner wall of the mounting hole. The elastic member is used for resetting and sealing the second control valve.

[0027] In one embodiment, the gas regulating device further includes a second sealing ring, which is disposed between the second seat body and the second connecting block and is used to seal the second connecting block and the gas outlet port of the proportional regulating valve.

[0028] In one embodiment, the gas regulating device further comprises a third sealing ring, and the third sealing ring is arranged between the second connecting block and the third seat body;

[0029] A sealing member is provided between the two-way valve and the first seat body, and / or a sealing member is provided between the proportional regulating valve and the second seat body.

[0030] In one embodiment, the gas regulating device further includes a fastener, and the first seat body, the second seat body and the third seat body are connected by the fastener.

[0031] In one of the embodiments, an exhaust port is disposed on the side of the second seat body, and the position of the exhaust port corresponds to the position of the air release port on the proportional control valve.

[0032] In one of the embodiments, the gas regulating device further includes a plug, and at least one spare air inlet is provided on the first seat body, and the plug is used to seal the spare air inlet.

[0033] The present application also provides a laser cutting device, comprising a gas regulating device as described in any one of the embodiments of the present application.

[0034] The gas regulating device provided by the present application includes two gas paths, one of which is directly connected to the first control valve through a first two-way valve, and the other of which is connected in sequence through a second two-way valve, a proportional regulating valve and a second control valve. Since at least part of the proportional regulating valve having an air inlet port and an air outlet port is embedded inside the valve seat, the overall space is compact, which effectively reduces the volume of the overall device. Moreover, the proportional regulating valve is directly inserted into the valve seat, which also facilitates the connection between the proportional regulating valve and the valve seat. The present application directly integrates the two-way valve, the proportional regulating valve and the control valve on the valve seat, with high integration, easy assembly and maintenance, and brings convenience to the use of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of the structure of a gas regulating device provided in one embodiment of the present application;

[0037] Figure 2 A schematic diagram of the internal structure of a gas regulating device provided in one embodiment of the present application;

[0038] Figure 3 A top view of a gas regulating device provided in one embodiment of the present application;

[0039] Figure 4 A schematic diagram of a first one-way valve connection structure provided in an embodiment of the present application;

[0040] Figure 5 A schematic structural diagram of another gas regulating device provided in an embodiment of the present application.

[0041] Description of Figure Numbers:

[0042]

[0043]

[0044] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] Below, this application is described in detail.

[0049] This application proposes a gas regulating device, referring to Figure 1 As shown, Figure 1 A gas regulating device is provided for this application.

[0050] In the embodiments of the present application, Figure 1 Combined with Figure 2 , Figure 3 As shown, the gas regulating device includes: a valve seat 13, two two-way valves 10, a proportional regulating valve 11 and two control valves, wherein a first air inlet 1311 and a second air inlet are provided at one end of the valve seat 13, and an air outlet 1331 is provided at the other end of the valve seat 13, the two-way valve 10 is arranged on the valve seat 13, the proportional regulating valve 11 at least has a part of an air inlet port and an air outlet port embedded in the valve seat 13, and the control valve is arranged inside the valve seat 13.

[0051] Among them, the first air inlet 1311 is connected to the air inlet port of the first two-way valve of the two two-way valves 10, the air outlet port of the first two-way valve is connected to the air inlet port of the first control valve of the two control valves, and the air outlet port of the first control valve is connected to the air outlet; wherein, the second air inlet is connected to the air inlet port on the second two-way valve of the two two-way valves 10, the air outlet port of the second two-way valve is connected to the air inlet port of the proportional control valve 11, the air outlet port of the proportional control valve 11 is connected to the air inlet port of the second control valve of the two control valves, and the air outlet port of the second control valve is connected to the air outlet 1331.

[0052] The two-way valve 10 in this embodiment can be a high-pressure two-way valve, and the two control valves can be a one-way valve or a two-way valve or a combination of a one-way valve and a two-way valve. The specific method can be determined according to the actual situation, and the embodiments of this specification do not limit this. For the convenience of description, the following description takes the example that both control valves are one-way valves.

[0053] In this embodiment, the valve seat 13 may be provided with a slot as indicated in the figure, and the proportional control valve 11 is correspondingly embedded in the slot. According to the height of the valve seat 13, the proportional control valve 11 may be completely embedded in the valve seat, or, in order to facilitate maintenance and reduce the height of the valve seat 13, at least the portion of the proportional control valve 11 having the air inlet port and the air outlet port may be embedded in the valve seat 13. The specific amount may be determined according to actual conditions, and the embodiments of this specification are not limited thereto.

[0054] In one embodiment, in order to facilitate the arrangement of the pipeline, the air inlet port on the proportional control valve 11 can be set to be flush with the air inlet 1311 on the valve seat 13, and the air outlet port on the proportional control valve 11 can be set to be flush with the air outlet 1331 on the valve seat 13. Of course, it can be understood that the positions of the air inlet port and the air outlet port on the proportional control valve 11 can also adopt other possible layout methods, and the embodiments of this specification are not limited to this.

[0055] refer to Figure 3 As shown, the two control valves in this embodiment are a first one-way valve 12 and a second one-way valve 18 , wherein the first air inlet 1311 is connected to the air inlet port on the first two-way valve, and the air outlet port on the first two-way valve is connected to the air inlet port of the second one-way valve 18 .

[0056] The second air inlet is connected to the air inlet port on the second two-way valve, the air outlet port on the second two-way valve is connected to the air inlet port of the proportional control valve 11, the air outlet port of the proportional control valve 11 is connected to the air inlet port of the first one-way valve 12, and at the same time, the air outlet ports of the first one-way valve 12 and the second one-way valve 18 converge and are connected to the air outlet 1331.

[0057] When in use, when the first air inlet 1311 is used as a high-pressure gas circuit for nitrogen-assisted laser cutting, when the first two-way valve of the nitrogen circuit is powered on and opened, the high-pressure gas passes through the second one-way valve 18 to reach the corresponding air outlet 1331; when the second air inlet is used as a low-pressure gas circuit for oxygen or air-assisted laser cutting, when the second two-way valve of the oxygen circuit is powered on and opened, the output gas pressure is adjusted by adjusting the input voltage of the proportional control valve 11, and finally the oxygen passes through the first one-way valve 12 to reach the corresponding air outlet 1331.

[0058] The gas regulating device provided by the present application has at least a portion of the inlet port and the outlet port of the proportional regulating valve 11 embedded inside the valve seat 13, so that the overall device space is compact, effectively reducing the volume of the overall device, and the proportional regulating valve 11 is directly inserted into the valve seat 13, which also facilitates the connection between the proportional regulating valve 11 and the valve seat 13. At the same time, since the outlet ports of the two control valves are directly merged together and connected to the outlet 1331, the overall device only needs to be provided with one outlet 1331, and the structure is simple and convenient. The present application directly integrates the two-way valve 10, the proportional regulating valve 11 and the control valve on the valve seat 13, with high integration, easy assembly and maintenance, and brings convenience to the use of the product.

[0059] In some embodiments, the outlet port of the first control valve and the outlet port of the second control valve are connected to the outlet port 1333 through confluence. In this way, the valve seat 13 can not only be used as the first control valve and the second control valve, but also can be used as a confluence channel to converge the outlet port of the first control valve and the outlet port of the second control valve together. The whole device only needs to be provided with one outlet port 1331, and the structure is simple and convenient.

[0060] In some embodiments, Figure 1 Combined with Figure 2 , Figure 3 As shown, the valve seat 13 includes a first seat body 131, a second seat body 132 and a third seat body 133 connected in sequence, wherein the first air inlet 1311 and the second air inlet are both located on the side of the first seat body 131 away from the second seat body 132, and the air outlet 1331 is located on the side of the third seat body 133 away from the second seat body 132; two first channels 1312 and two second channels 1313 are arranged in the first seat body 131, and a confluence channel 1332 is arranged in the third seat body 133, and the confluence channel 1332 is used to connect the air outlet ports of the two control valves and the air outlet 1331.

[0061] The two two-way valves 10 are located on the upper surface of the first seat body 131 , the proportional control valve 11 at least having the inlet port and the outlet port is embedded in the second seat body 132 , and the two control valves are both arranged inside the third seat body 133 .

[0062] The first air inlet 1311 is connected to the air inlet port on the first two-way valve through the first channel 1312, and the air outlet port on the first two-way valve is connected to the air inlet port of the first control valve through the second channel 1313;

[0063] The second air inlet is communicated with the air inlet port on the second two-way valve through another first channel 1312 , and the air outlet port on the second two-way valve is communicated with the air inlet port on the proportional control valve 11 through another second channel 1313 .

[0064] In this embodiment, the first base body 131, the second base body 132 and the third base body 133 can be snap-fitted together, or connected together by bolts. The specific method can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0065] The two-way valve 10 in this embodiment can be fixed to the first seat body 131 by bolts, or the two-way valve 10 can be clamped on the first seat body 131; the proportional control valve 11 can be clamped on the second seat body 132, or the proportional control valve 11 is connected to the second seat body 132 by bolts; both control valves are arranged in the clamping groove inside the third seat body 133, and the specific ones can be determined according to actual conditions, and the embodiments of this specification are not limited to this.

[0066] In this embodiment, two first channels 1312 and two second channels 1313 are formed inside the first seat body 131, wherein one first channel 1312 is connected to the first air inlet 1311, and the other first channel 1312 is connected to the second air inlet. When the first two-way valve and the second two-way valve are fixed to the first seat body 131, the air inlet port on the first two-way valve is connected to the first air inlet 1311, and the air outlet port on the first two-way valve is connected to the corresponding second channel 1313; the air inlet port on the second two-way valve is connected to the second air inlet, and the air outlet port on the second two-way valve is connected to the corresponding second channel 1313.

[0067] refer to Figure 1 As shown, in this example, the two two-way valves 10 are both arranged on the upper surface of the first seat body 131, so that the two-way valves 10 are located in the external space, the two-way valves 10 are not blocked, and are easy to operate. Moreover, the two two-way valves 10 are both located on the upper surface of the first seat body 131, which is conducive to minimizing the volume of the overall device.

[0068] In this embodiment, since a confluence channel 1332 is provided in the third seat body 133, the outlet ports of the two control valves, i.e., the first one-way valve 12 and the second one-way valve 18, can be connected to the outlet port 1331 through the confluence channel 1332, and the whole device only needs one outlet port 1331, which is simple and convenient in structure. At the same time, the confluence channel 1332 formed inside the third seat body 133 can connect the outlet port of the first one-way valve 12 and the outlet port of the second one-way valve 18 together, and the confluence effect can be achieved without adding additional pipes. By integrating the valve seat 13 and the confluence plate into a whole, space can be effectively saved and the integration degree can be improved.

[0069] In this embodiment, a first channel 1312 and a second channel 1313 are directly formed in the first seat body 131. When the two-way valve 10 is installed on the first seat body 131, the air inlet port on the two-way valve 10 is directly connected to the first channel 1312, and the air outlet port on the two-way valve 10 is directly connected to the second channel 1313. In this way, the two-way valve 10 can work normally without additional pipelines, effectively reducing the number of parts during product assembly.

[0070] In this embodiment, a fool-proof structure may be provided between the first seat body 131 and the second seat body 132 , and a fool-proof structure may also be provided between the second seat body 132 and the third seat body 133 .

[0071] In this embodiment, a foolproof structure may be provided between the first base body 131 and the second base body 132, and a foolproof structure may also be provided between the second base body 132 and the third base body 133, so that the installation of the first base body 131 and the second base body 132 is facilitated, and errors in connection between the first base body 131 and the second base body 132 are avoided. At the same time, the installation of the second base body 132 and the third base body 133 is facilitated, and errors in connection between the second base body 132 and the third base body 133 are avoided.

[0072] In some embodiments, Figure 2As shown, the gas regulating device may also include a first connecting block 16, a second connecting block 17 and a third connecting block not marked in the figure, the first connecting block 16 is provided with a first through hole 161, the second connecting block 17 is provided with a second through hole 171, and the third connecting block is provided with a third through hole, wherein the first connecting block 16 and the second connecting block 17 correspond to the air inlet port and the air outlet port located on the proportional control valve 11, and the second connecting block 17 is provided at the air inlet port of the second control valve; the third connecting block is provided at the air inlet port of the first control valve; the air outlet port on the first two-way valve is connected to the air inlet port of the first control valve through one of the second channels 1313 and the third through hole in sequence; the air outlet port on the second two-way valve is connected to the air inlet port on the proportional control valve 11 through another of the second channels 1313 and the first through hole 161 in sequence, and the air outlet port on the proportional control valve 11 is connected to the air inlet port of the second control valve through the second through hole 171.

[0073] In this embodiment, the second connection block 17 is communicated with the air inlet port on the first one-way valve 12 , and the third connection block is communicated with the air inlet port on the second one-way valve 18 .

[0074] refer to Figure 2 As shown, the first connecting block 16 in this embodiment is clamped in the slot formed between the first seat body 131 and the second seat body 132, and the second connecting block 17 is clamped in the slot formed between the second seat body 132 and the third seat body 133. The specific details can be determined according to actual conditions, and the embodiments of this specification are not limited to this.

[0075] When the first connection block 16 and the second connection block 17 are fixed, the second channel 1313 is connected to the air inlet port of the proportional control valve 11 through the first through hole 161, and the air inlet port of the first check valve 12 is connected to the air outlet port of the proportional control valve 11 through the second through hole 171. At the same time, the air outlet port of the corresponding two-way valve 10 is connected to the air inlet port of the second check valve 18 through the third through hole on the third connection block.

[0076] In some embodiments, Figure 4 As shown, the gas regulating device may further include a first sealing ring 19, wherein the outer diameter of one end of the second control valve facing the second through hole 171 is smaller than the inner diameter of the second through hole 171, and an annular groove 121 is provided at one end of the second control valve facing the second through hole 171; when one end of the second control valve facing the second through hole 171 is located in the second through hole 171, the first sealing ring 19 is located in the annular groove 121, and the first sealing ring 19 abuts against the second connecting block 17 toward the second control valve.

[0077] refer to Figure 4As shown, the second control valve in this embodiment is a first one-way valve 12. The difference between the outer diameter of one end of the first one-way valve 12 facing the second through hole 171 and the inner diameter of the second through hole 171 can be between 1-5 mm. The specific difference can be determined based on actual conditions, and this specification does not limit this.

[0078] Since the outer diameter of the end of the first one-way valve 12 facing the second through hole 171 is smaller than the inner diameter of the second through hole 171 , it is convenient to install the end of the first one-way valve 12 facing the second through hole 171 into the second connecting block 17 .

[0079] refer to Figure 4 As shown, when the end of the first one-way valve 12 facing the second through hole 171 is located in the second through hole 171, the first sealing ring 19 is located in the annular groove 121, and the first sealing ring 19 abuts against the end of the second connecting block 17 facing the first one-way valve 12. At this time, the outer diameter of the first sealing ring 19 is greater than the inner diameter of the second through hole 171, so that under the sealing effect of the first sealing ring 19, the sealing performance of the connection between the second connecting block 17 and the first one-way valve 12 can be ensured.

[0080] In some embodiments, Figure 4 As shown, the gas regulating device also includes an elastic member 20, wherein a mounting hole 1333 is provided inside the third seat body 133, and the second control valve is located in the mounting hole 1333; the elastic member 20 is sleeved on the second control valve, and the end of the elastic member 20 away from the second connecting block 17 abuts against the inner wall of the mounting hole 1333.

[0081] In this embodiment, the elastic member 20 may be deformed under the action of an external force and return to its original shape after the external force is removed. Figure 4 The elastic member 20 can be elastically compressed in the horizontal direction. The elastic member 20 can be made of metal or non-metallic material, such as a leaf spring, a coil spring, a gas spring, a rubber spring, etc. The specific material can be determined according to actual conditions, and the embodiments of this specification do not limit this.

[0082] The elastic member 20 of this embodiment is in a compressed and contracted state in a natural state. Figure 4 As shown, the second control valve is the first one-way valve 12. Since the elastic member 20 is sleeved on the first one-way valve 12, and the end of the elastic member 20 away from the second connecting block 17 abuts against the inner wall of the mounting hole 1333, under the reaction force of the elastic member 20, the first one-way valve 12 is subjected to a leftward thrust. At this time, the first sealing ring 19 is pressed against the second connecting block 17 under the leftward thrust, thereby further ensuring the sealing of the connection between the first one-way valve 12 and the second connecting block 17.

[0083] In this embodiment, the difference between the inner diameter of the mounting hole 1333 and the outer diameter of the first one-way valve 12 can be between 1 and 5 mm, which can be determined according to actual conditions, and is not limited in this embodiment of the specification. Since the inner diameter of the mounting hole 1333 is larger than the outer diameter of the first one-way valve 12, it is convenient to install the first one-way valve 12 into the mounting hole 1333.

[0084] In some embodiments, Figure 4 As shown, the gas regulating device further comprises a second sealing ring 21, and the second sealing ring 21 is arranged between the second seat body 132 and the second connecting block 17. In this way, the non-sealing property between the second seat body 132 and the second connecting block 17 can be ensured.

[0085] In some embodiments, the gas regulating device further comprises a third sealing ring 22, and the third sealing ring 22 is disposed between the second connecting block 17 and the third seat body 133. In this way, the sealing between the second connecting block 17 and the third seat body 133 can be ensured.

[0086] In this embodiment, sealing members are provided on both the side of the first connecting block 16 facing the first base body 131 and the side of the first connecting block 16 facing the second base body 132. In this way, the sealing between the first base body 131, the first connecting block 16 and the second base body 132 can be ensured.

[0087] In some embodiments, a seal is disposed between the two-way valve 10 and the first seat body 131 , and a seal is also disposed between the proportional control valve 11 and the second seat body 132 .

[0088] In this embodiment, a seal is provided between the two-way valve 10 and the first seat body 131, and a seal is also provided between the proportional control valve 11 and the second seat body 132. In this way, the sealing between the two-way valve 10 and the first seat body 131 can be ensured, and the sealing between the proportional control valve 11 and the second seat body 132 can be ensured.

[0089] In some embodiments, Figure 1 As shown, the gas regulating device further includes a fastener 14 , wherein the first seat body 131 , the second seat body 132 and the third seat body 133 are connected by the fastener 14 .

[0090] The fastener 14 in this embodiment may be a tension bolt, a clamping block, etc., and the specific one may be determined according to actual conditions, and this specification embodiment does not limit this.

[0091] In this embodiment, the first base body 131 , the second base body 132 and the third base body 133 are connected together by the fastener 14 , thereby facilitating the fixation between the base bodies.

[0092] In some embodiments, as shown in the figure, an exhaust port 23 is disposed on the side of the second seat body 132, and the position of the exhaust port 23 corresponds to the position of the air release port on the proportional regulating valve 11. In this way, it is convenient to release air from the air release port.

[0093] The gas regulating device in this embodiment further includes an air pipe, which is connected to the exhaust port 23. In this way, it is convenient to guide the exhausted gas to a designated position.

[0094] The gas regulating device in this embodiment further includes a muffler, which is arranged at the exhaust port 23. In this way, the noise generated during exhaust can be reduced.

[0095] In some embodiments, the gas regulating device may further include a plug 15 , and at least one spare air inlet may be provided on the first seat body 131 , and the plug 15 is used to block the spare air inlet.

[0096] In this embodiment, two spare air inlets may be provided on the first seat body 131, and each spare air inlet is installed with a plug 15. In order to improve the versatility of the gas regulating device, a spare air inlet may be provided, so that even if different types of two-way valves or other devices are used, they can be adapted, and when there is a problem with the air inlet, gas can be supplied through the spare air inlet to ensure normal use of the device.

[0097] The present application also provides a laser cutting device, comprising a gas regulating device as described in any one of the embodiments of the present application.

[0098] The specific structure of the gas regulating device in this embodiment refers to the above embodiment. Since all the technical solutions of all the above embodiments are adopted in the laser cutting equipment, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0099] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A gas regulating device, characterized in that: include: A valve seat (13), wherein one end of the valve seat (13) is provided with a first air inlet (1311) and a second air inlet, and the other end of the valve seat (13) is provided with an air outlet (1331); two two-way valves (10), wherein the two-way valves (10) are arranged on the valve seat (13); A proportional control valve (11), wherein at least a portion of the proportional control valve (11) having an air inlet port and an air outlet port is embedded in the valve seat (13); two control valves, the control valves being arranged inside the valve seat (13); wherein the first air inlet (1311) is communicated with the air inlet port of the first two-way valve of the two two-way valves (10), the air outlet port of the first two-way valve is communicated with the air inlet port of the first control valve of the two control valves, and the air outlet port of the first control valve is communicated with the air outlet; The second air inlet is connected to the air inlet port on the second two-way valve of the two two-way valves (10), the air outlet port of the second two-way valve is connected to the air inlet port of the proportional control valve (11), the air outlet port of the proportional control valve (11) is connected to the air inlet port of the second control valve of the two control valves, and the air outlet port of the second control valve is connected to the air outlet (1331).

2. The gas regulating device according to claim 1, characterized in that: The gas outlet port of the first control valve and the gas outlet port of the second control valve are connected to the gas outlet (1331) through confluence.

3. The gas regulating device according to claim 1, characterized in that: The valve seat (13) comprises a first seat body (131), a second seat body (132) and a third seat body (133) which are connected in sequence; The first air inlet (1311) and the second air inlet are both located on a side of the first seat body (131) away from the second seat body (132), and the air outlet (1331) is located on a side of the third seat body (133) away from the second seat body (132); two first channels (1312) and two second channels (1313) are provided in the first seat body (131), and a confluence channel (1332) is provided in the third seat body (133), and the confluence channel is used to connect the air outlet ports of the two control valves and the air outlet (1331); The two two-way valves (10) are located on the upper surface of the first seat body (131), the portion of the proportional control valve (11) having at least an air inlet port and an air outlet port is embedded in the second seat body (132), and the two control valves are both arranged inside the third seat body (133); wherein the first air inlet (1311) is in communication with the air inlet port on the first two-way valve through the first channel (1312), and the air outlet port on the first two-way valve is in communication with the air inlet port of the first control valve through the second channel (1313); The second air inlet is connected to the air inlet port on the second two-way valve through another of the first channels (1312), and the air outlet port on the second two-way valve is connected to the air inlet port on the proportional control valve (11) through another of the second channels (1313).

4. The gas regulating device according to claim 3, characterized in that: The gas regulating device further comprises a first connecting block (16), a second connecting block (17) and a third connecting block, the first connecting block (16) being provided with a first through hole (161), the second connecting block (17) being provided with a second through hole (171), and the third connecting block being provided with a third through hole; The first connection block (16) and the second connection block (17) correspond to the air inlet port and the air outlet port on the proportional control valve (11), and the second connection block (17) is arranged at the air inlet port of the second control valve; The third connecting block is arranged at the air inlet port of the first control valve; The outlet port on the first two-way valve is connected to the inlet port of the first control valve through the second channel (1313) and the third through hole in sequence; The outlet port on the second two-way valve is connected to the inlet port on the proportional control valve (11) via another second channel (1313) and the first through hole (161) in sequence, and the outlet port on the proportional control valve (11) is connected to the inlet port of the second control valve via the second through hole (171).

5. The gas regulating device according to claim 4, characterized in that: The gas regulating device further comprises a first sealing ring (19); an outer diameter of one end of the second control valve facing the second through hole (171) is smaller than an inner diameter of the second through hole (171); and an annular groove (121) is provided on one end of the second control valve facing the second through hole (171); When one end of the second control valve facing the second through hole (171) is located in the second through hole (171), the first sealing ring (19) is located in the annular groove (121), and the first sealing ring (19) abuts against one end of the second connecting block (17) facing the second control valve.

6. The gas regulating device according to claim 5, characterized in that: The gas regulating device further comprises an elastic member (20); a mounting hole (1333) is provided inside the third seat body (133); and the second control valve is located in the mounting hole (1333); The elastic member (20) is sleeved on the second control valve, and one end of the elastic member (20) away from the second connection block (17) abuts against the inner wall of the mounting hole (1333), and the elastic member is used for resetting and sealing the second control valve.

7. The gas regulating device according to claim 4, characterized in that: The gas regulating device further comprises a second sealing ring (21), wherein the second sealing ring (21) is arranged between the second seat body (132) and the second connecting block (17) and is used for sealing the second connecting block (17) and the gas outlet port of the proportional regulating valve (11).

8. The gas regulating device according to claim 4, characterized in that: The gas regulating device further comprises a third sealing ring (22), wherein the third sealing ring (22) is arranged between the second connecting block (17) and the third seat body (133); A sealing member is provided between the two-way valve (10) and the first seat body (131), and / or a sealing member is provided between the proportional control valve (11) and the second seat body (132).

9. The gas regulating device according to any one of claims 3 to 8, characterized in that: The gas regulating device further comprises a fastener (14), and the first seat body (131), the second seat body (132) and the third seat body (133) are connected via the fastener (14).

10. The gas regulating device according to claim 3, characterized in that: An exhaust port (23) is provided on the side of the second seat body (132), and the position of the exhaust port (23) corresponds to the position of the air release port on the proportional regulating valve (11).

11. The gas regulating device according to claim 3, characterized in that: The gas regulating device further comprises a plug (15), and at least one spare air inlet is also provided on the first seat body (131), and the plug (15) is used to seal the spare air inlet.

12. A laser cutting device, characterized in that: Comprising a gas regulating device as claimed in any one of claims 1 to 11.

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