CN217433325U - Clean air pipe double-desorption valve far infrared welding tool - Google Patents
Clean air pipe double-desorption valve far infrared welding tool Download PDFInfo
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- CN217433325U CN217433325U CN202221114597.9U CN202221114597U CN217433325U CN 217433325 U CN217433325 U CN 217433325U CN 202221114597 U CN202221114597 U CN 202221114597U CN 217433325 U CN217433325 U CN 217433325U
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Abstract
Clean two desorption valve far infrared welding frocks of air pipe includes: the upper die comprises an upper die supporting plate, a bypass flow dividing pipe jig and a positioning clamping cylinder, the lower die comprises a lower die supporting plate, a first body jig, a second body jig and a pressing jig, the bypass flow dividing pipe and the desorption valve body are respectively positioned in the upper die and the lower die Europe, the infrared heating assembly comprises an infrared heating plate supporting plate, an upper infrared light pipe accommodating block and a lower infrared light pipe accommodating block, and the infrared light pipes on the upper surface and the lower surface of the infrared heating plate supporting plate are used for heating a welding surface; the advantages are as follows: the jig positioning structure is reasonable in arrangement and accurate in positioning; the mould pressing component force is large, the lifting mould pressing precision is high, and the automation degree is high.
Description
Technical Field
The utility model relates to a desorption valve welding technology field specifically is two desorption valve far infrared welding frocks of clean air pipe.
Background
The gas desorption device is a common device for gas treatment, can remove harmful or useless components in gas through selective desorption, and an air pipe desorption valve in the gas desorption device is one of key components for realizing gas desorption treatment, and plays roles in stopping, adjusting, guiding, preventing countercurrent, stabilizing pressure, shunting or overflowing for pressure relief. The air pipe desorption valve collects a plurality of parts that are as an organic whole that are used for, so functional unit is more, unable integrated into one piece, and part functional unit needs post welding after the shaping alone to combine. Such as welding the bypass shunt tube with the desorption valve body.
Due to the fact that the overall structure of the desorption valve is complex in shape and difficult to position, the welding surface of the structure needing to be welded is heated unevenly, and the situations of insecure welding surface, local desoldering and the like are caused; moreover, because the face of weld is the uneven regular face, in case the welding pressfitting process takes place to shift and will directly lead to the welding dislocation, influence the normal use of desorption valve function.
The utility model provides a two desorption valves far infrared welding frocks of clean air pipe solves above-mentioned technical problem.
SUMMERY OF THE UTILITY MODEL
Two desorption valve far infrared welding frocks of clean air pipe, including frame, last mould, lower mould, the infrared heating element who puts in, go up mould, lower mould and be used for the well bypass shunt tubes, the desorption valve body of treating welding of fixed desorption valve, accomplish die sinking, the compound die mould pressing action of going up the lower mould through the elevating action, infrared heating element is used for carrying out the infrared lamp pipe heating for the spare part in last mould, lower mould simultaneously, it all sets up to go up mould, lower mould, infrared heating element in the frame, it all is connected with lift drive arrangement's power take off end to go up mould, lower mould elevating movement, infrared heating element highly is located go up and can carry out translation motion between mould, the lower mould, drive between the infrared heating element goes up the mould, the lower mould.
Preferably, the clean air pipe double-desorption valve far infrared welding tool comprises a lower die support plate, a first body jig, a second body jig and a pressing jig, wherein the first body jig and the second body jig are fixed on an upper plate surface of the lower die support plate, a U-shaped plate surface used for supporting a pipe body at the rear end of the desorption valve body is processed on the upper plate surface of the first body jig, a profiling positioning structure matched with the outer wall of the front end of the desorption valve body is arranged on the upper plate surface of the second body jig, and the pressing jig is used for clamping the outer wall of the desorption valve body outside the second body jig; the first body jig, the second body jig and the pressing jig are all fixed on the upper plate surface of the main jig supporting plate, and the first body jig is fixed on the upper plate surface of the main jig supporting plate through the first jig supporting plate.
Preferably, in the clean air pipe double-desorption valve far infrared welding tool, a space enclosed by a U-shaped plate surface of the first body tool accommodates the rear end of the desorption valve body, and a profiling structure which is completely matched with the outer wall of the rear end of the desorption valve body is not machined on the U-shaped plate surface; the second body jig comprises a die pressing positioning supporting block located below the to-be-welded surface of the desorption valve body, and the upper plate surface of the die pressing positioning supporting block is in contact with the lower plate surface of the to-be-welded surface of the desorption valve body.
Preferably, clean air pipe double desorption valve far infrared welding frock, first body tool with the last face of total tool backup pad, second body tool with the last face of first tool backup pad all is provided with the stand.
Preferably, clean air pipe two desorption valve far infrared welding frock, the tool of pushing down is including pushing down lift cylinder, pushing down the pole, the lower terminal surface processing of pushing down the pole have with the clamp curved surface of desorption valve body outer wall profile modeling.
Preferably, two desorption valve far infrared welding frocks of clean air pipe, the quantity that pushes down the tool is one or more, the lower depression bar processing that pushes down in the tool has a continuous clamp curved surface or a plurality of discontinuous clamp curved surface, and when being the discontinuous clamp curved surface more than 2, the both sides at desorption valve body outer wall convex structure are established to the cut-off point branch of discontinuous clamp curved surface.
Preferably, two desorption valves far infrared welding frock of clean air pipe, it includes mould backup pad, bypass shunt tubes tool, location centre gripping cylinder to go up the mould, bypass shunt tubes tool direct or indirect with it is fixed to go up the mould backup pad, the lower facial features processing of bypass shunt tubes tool have with the profile modeling location structure that bypass shunt tubes appearance matches, the slope of location centre gripping cylinder sets up, the last face processing of bypass shunt tubes tool has the hole that communicates with the profile modeling location structure of face down, location centre gripping cylinder passes the hole and is used for the centre gripping the body of bypass shunt tubes.
Preferably, clean air pipe double desorption valve far infrared welding frock, bypass shunt tubes tool pass through the U-shaped connecting plate with it is fixed to go up the hypoplastron face of mould backup pad, the hypoplastron face of the both sides board of U-shaped connecting plate with bypass shunt tubes tool is fixed, the upper plate with it is fixed to go up the hypoplastron face of mould backup pad.
Preferably, the infrared heating assembly comprises an infrared heating plate supporting plate, an upper infrared light tube accommodating block and a lower infrared light tube accommodating block, the upper infrared light tube accommodating block and the lower infrared light tube accommodating block are respectively arranged on the upper plate surface of the infrared heating plate supporting plate above and the lower plate surface of the infrared heating plate supporting plate below, accommodating cavities for placing infrared light tubes are machined in the upper infrared light tube accommodating block and the lower infrared light tube accommodating block, and the shapes of the infrared light tubes in the upper infrared light tube accommodating block and the lower infrared light tube accommodating block are matched with the surfaces to be welded in the bypass flow dividing pipe and the desorption valve body; an infrared heating plate supporting plate in the infrared heating assembly is fixed with a sliding block in a sliding rail sliding block assembly, a sliding rail in the sliding rail sliding block assembly is fixed with the rack, and the infrared heating plate supporting plate slides in a translation mode along the sliding rail under the action of a translation driving assembly.
Preferably, two desorption valve far infrared welding frocks of clean air pipe, translation drive assembly includes rotating electrical machines, transmission shaft, bar tooth, rotating electrical machines's power take off end is provided with the transmission shaft, the both ends of transmission shaft are provided with the gear, the bar tooth sets up the both sides in the frame, the gear with the meshing of bar tooth, rotating electrical machines with the infrared heating board backup pad.
The working process is as follows:
the bypass shunt tubes are placed in the profiling cavity of the bypass shunt tube jig of the upper die and clamped by the positioning clamping cylinder, the desorption valve body is placed in the profiling cavity of the lower die second body jig, the rear end of the desorption valve body is positioned through the supporting effect of the first body jig, after the positioning of the parts to be welded is completed, the infrared heating assembly translates to the upper die and between the lower dies under the effect of the translation driving assembly, the upper die and the lower die ascend and descend towards the translation driving assembly, the infrared lamp tubes heat the bypass shunt tubes and the surfaces to be welded of the desorption valve body, after the heating is completed, the infrared heating assembly translates and exits under the effect of the translation driving assembly, the upper die, the lower die ascends and descends, the die is closed, and the die pressing is performed, so that the surfaces to be welded of the two parts are attached, and the blanking is completed.
The advantages are as follows:
(1) the utility model relates to a part positioning jig structure in the upper and lower dies of a clean air pipe double-desorption valve far infrared welding tool is reasonable in arrangement, improves positioning accuracy and simultaneously guarantees convenience of part placement;
(2) the utility model relates to a clean air pipe double desorption valve far infrared welding tool sets the surface to be welded at the horizontal plane position, so that the component force of the mould pressing welding force acts on the mould pressing welding as much as possible, and the required mould pressing force is smaller;
(3) the utility model relates to a clean air pipe double desorption valve far infrared welding tool can avoid relative sliding of welding surfaces in the welding process, and the welding surface below is provided with a mould pressing positioning supporting block, so that the support is provided for mould pressing while limiting;
(4) the utility model relates to a two desorption valve far infrared welding frock accessible of clean air pipe change the last mould, the lower mould of matching the specification, realize the use of two desorption valve welded after the local structure changes, improve equipment commonality.
Drawings
The embodiments are further described with reference to the accompanying drawings, in which:
fig. 1 is a plan view of the whole structure of a clean air pipe double-desorption valve far infrared welding tool related to the utility model;
fig. 2 and 3 are partial structural schematic diagrams of the clean air pipe dual-desorption valve far infrared welding tool related to the utility model;
fig. 4 is a schematic structural view of the bypass shunt tube and a weld face display (arrow direction) according to the present invention;
fig. 5 is a schematic structural view and a weld surface display (arrow direction) of the desorption valve body according to the present invention;
fig. 6 is a schematic structural view of the clean air pipe after welding the dual desorption valves;
fig. 7 is a schematic view of a partial structure of a lower mold according to the present invention;
fig. 8 is an installation schematic view of the desorption valve body of the present invention on the lower mold;
fig. 9 is a schematic view of the installation of the bypass shunt tube on the upper die according to the present invention;
the specific structure corresponding to the number is as follows:
a lower die supporting plate 1, a first body jig 2, a second body jig 3, a die pressing positioning supporting block 31, a downward pressing jig 4, a downward pressing lifting cylinder 41, a downward pressing rod 42, a main jig supporting plate 5, a first jig supporting plate 51, an upper die supporting plate 6, a bypass shunt pipe jig 7, a positioning clamping cylinder 8, a U-shaped connecting plate 9, an infrared heating plate supporting plate 10, an upper infrared light pipe accommodating block 11, a lower infrared light pipe accommodating block 12, a rotating motor 131, a transmission shaft 132, a strip-shaped tooth 133, a screw 141, a nut 142, an installation block 143, a nut 144, an infrared light pipe 15,
the following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Specific embodiment example 1:
clean two desorption valve far infrared welding frocks of air pipe includes: frame, last mould, lower mould, the infrared heating assembly who puts in, go up mould, lower mould and be used for the well bypass shunt tubes, the desorption valve body of treating the welding of fixed desorption valve, the die sinking of going up the lower mould is accomplished through the elevating action, compound die mould pressing action, infrared heating assembly is used for carrying out the infrared fluorescent tube heating for the spare part in last mould, lower mould simultaneously, go up mould, lower mould, infrared heating assembly and all set up in the frame, go up mould, lower mould and all be connected with the power take off end of lift drive arrangement (can select servo lead screw drive assembly among the prior art, cylinder drive assembly etc.), drive go up mould, lower mould elevating movement, infrared heating assembly highly is located go up and can carry out translation between mould, the lower mould, drive infrared heating assembly passes in and out between mould, the lower mould.
The lower die comprises a lower die supporting plate 1, a first body jig 2, a second body jig 3 and a pressing jig 4, wherein the first body jig 2 and the second body jig 3 are fixed on the upper plate surface of the lower die supporting plate 1, the upper plate surface of the first body jig 2 is provided with a U-shaped plate surface used for supporting a pipe body at the rear end of the desorption valve body, the upper plate surface of the second body jig 3 is provided with a profiling positioning structure matched with the outer wall of the front end of the desorption valve body, and the pressing jig 4 is used for clamping the outer wall of the desorption valve body outside the second body jig 3; the second body jig 3 comprises a die pressing positioning supporting block 31 positioned below the surface to be welded of the desorption valve body, and the upper plate surface of the die pressing positioning supporting block 31 is in contact with the lower plate surface of the surface to be welded of the desorption valve body; the pressing jig 4 comprises a pressing lifting cylinder 41 and a pressing rod 42, and a hoop curved surface which is profiled with the outer wall of the desorption valve body is processed on the lower end surface of the pressing rod 42; the upper die comprises an upper die supporting plate 6, a bypass shunt pipe jig 7 and a positioning clamping cylinder 8, wherein the bypass shunt pipe jig 7 is directly or indirectly fixed with the upper die supporting plate 6, a profiling positioning structure matched with the profile of the bypass shunt pipe is processed on the lower plate surface of the bypass shunt pipe jig 7, the positioning clamping cylinder 8 is obliquely arranged, a hole communicated with the profiling positioning structure on the lower plate surface is processed on the upper plate surface of the bypass shunt pipe jig 7, and the positioning clamping cylinder 8 is used for clamping a pipe body of the bypass shunt pipe through the hole; the infrared heating assembly comprises an infrared heating plate supporting plate 10, an upper infrared light tube accommodating block 11 and a lower infrared light tube accommodating block 12, wherein the upper infrared light tube accommodating block 11 and the lower infrared light tube accommodating block 12 are respectively arranged on the upper plate surface and the lower plate surface of the infrared heating plate supporting plate 10, accommodating cavities for accommodating infrared light tubes are processed in the upper infrared light tube accommodating block 11 and the lower infrared light tube accommodating block 12, and the shapes of the infrared light tubes in the upper infrared light tube accommodating block 11 and the lower infrared light tube accommodating block 12 are matched with the surfaces to be welded in the bypass flow dividing pipe and the desorption valve body and are used for heating the surfaces to be welded; an infrared heating plate supporting plate 10 in the infrared heating assembly is fixed with a sliding block in a sliding rail sliding block assembly, a sliding rail in the sliding rail sliding block assembly is fixed with the rack, and the infrared heating plate supporting plate 10 slides in a translation mode along the sliding rail under the action of a translation driving assembly.
Specific embodiment example 2:
on the basis of the specific implementation case 1, the preferred scheme can be selected as follows:
a clean air pipe double-desorption valve far infrared welding tool is provided, a space enclosed by a U-shaped plate surface of a first body tool 2 contains a profiling structure which is arranged at the middle rear end of a desorption valve body and is not processed and is completely matched with the outer wall of the middle rear end of the desorption valve body, the purpose of this is to make the second body fixture 3 exert the most stable fixture positioning function and simultaneously satisfy the simultaneous positioning of the desorption valve body on the first body fixture 2 and the second body fixture 3, if both fixtures are provided with strict profile modeling structures, the speed of discharging the desorption valve body lower die is inevitably caused, in addition, the desorption valve body of the part to be welded is positioned by the profile modeling structure of the second body fixture 3 and is pressed by the pressing fixture 4, thereby avoiding the deviation in the heating, die-closing and die-pressing processes, therefore, the first body fixture 2 only needs to have the function of top supporting, and the desorption valve body can be accurately positioned.
Further, the matching profiling structure of the second body jig 3 further includes an arc-shaped accommodating groove 32 matched with the annular outer convex ring ridge of the pipe body at the front end of the desorption valve body.
Optionally, the first body jig 2, the second body jig 3, and the pressing jig 4 are all fixed to the upper surface of the main jig support plate 5, and the first body jig 2 is fixed to the upper surface of the main jig support plate 5 through the first jig support plate 51.
Optionally, the upper plate surfaces of the first body jig 2 and the main jig supporting plate 5, the second body jig 3 and the first jig supporting plate 51 are provided with columns, the arrangement of the columns can increase the jig placing height and reserve the avoiding height of the overall structure of the desorption valve body, meanwhile, the thicknesses of the first body jig 2 and the second body jig 3 are not required to be excessively increased, and the use of products with different avoiding heights can be met by replacing the columns.
Specific embodiment example 3:
on the basis of the specific embodiment 1 or 2, the following preferred schemes can be selected:
clean air pipe pair desorption valve far infrared welding frock, the equal horizontal direction of the face that needs the welding sets up in bypass shunt tubes, the desorption valve body, the die clamping in-process application of force welding of being convenient for.
Optionally, the number of the pressing jig 4 is two, the pressing rod 42 in the pressing jig 4 is provided with two discontinuous hoop curved surfaces, and the dividing points of the discontinuous hoop curved surfaces are respectively arranged on two sides of the outer wall convex structure of the desorption valve body, so that the hoop of the desorption valve body can be positioned better.
Optionally, the bypass shunt tube jig 7 is fixed to the lower plate surface of the upper mold supporting plate 6 through a U-shaped connecting plate 9, the lower plate surfaces of the two side plates of the U-shaped connecting plate 9 are fixed to the bypass shunt tube jig 7, and the upper plate is fixed to the lower plate surface of the upper mold supporting plate 6.
Optionally, the U-shaped connecting plate 9 is fixed to the upper mold supporting plate 6, the main jig supporting plate 5 is fixed to the lower mold supporting plate 1 through a mounting assembly, the mounting assembly includes screws 141, nuts 142, a mounting block 143, and nuts 144, the mounting block is fixed to the upper mold supporting plate 6 or the lower mold supporting plate 1, the nuts are fixed to side plate surfaces of the mounting block, the screws pass through the nuts and the mounting block and abut against the side plate surfaces of the upper mold supporting plate 6 or the lower mold supporting plate 1, the nuts 144 are fixed to the plate surface holes of the upper mold supporting plate 6 or the lower mold supporting plate 1, and threaded holes concentric with the nuts are formed in the plate surface of the upper mold supporting plate 6 or the lower mold supporting plate 1.
Specific embodiment example 4:
on the basis of embodiment 1, 2 or 3, the following preferred embodiments can be selected:
two desorption valve far infrared welding frocks of clean air pipe, translation drive assembly includes rotating electrical machines 131, transmission shaft 132, bar tooth 133, the power take off end of rotating electrical machines 131 is provided with transmission shaft 132, the both ends of transmission shaft 132 are provided with the gear, bar tooth 133 sets up the both sides in the frame, the gear with bar tooth 133 meshes, rotating electrical machines 131 with infrared heating board backup pad 10. The rotating motor 131 drives the infrared heating plate supporting plate 10 to horizontally slide along the strip-shaped teeth 133 on the inner side of the frame and to pass in and out between the upper die and the lower die.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. Clean two desorption valve far infrared welding frocks of air pipe, its characterized in that: including frame, last mould, lower mould, the infrared heating element who puts in, go up mould, lower mould and be used for the well bypass shunt tubes, the desorption valve body of treating of fixed desorption valve, accomplish the die sinking, the compound die mould pressing action of going up the lower mould through the elevating system, infrared heating element is arranged in carrying out the infrared fluorescent tube heating for the spare part in last mould, the lower mould simultaneously, go up mould, lower mould, infrared heating element and all set up in the frame, go up mould, lower mould and all be connected with lift drive arrangement's power take off end, drive go up mould, lower mould elevating movement, infrared heating element highly is located just can carry out translational motion between last mould, the lower mould, drive infrared heating element passes in and out between mould, the lower mould.
2. The clean air pipe double desorption valve far infrared welding frock of claim 1 which characterized in that: the lower die comprises a lower die supporting plate, a first body jig, a second body jig and a pressing jig, the first body jig and the second body jig are fixed on the upper plate surface of the lower die supporting plate, the upper plate surface of the first body jig is provided with a U-shaped plate surface used for supporting a pipe body at the rear end of the desorption valve body in an up-supporting mode, the upper plate surface of the second body jig is provided with a profiling positioning structure matched with the outer wall of the front end of the desorption valve body, and the pressing jig is used for clamping the outer wall, located outside the second body jig, of the desorption valve body; the first body jig, the second body jig and the pressing jig are all fixed on the upper plate surface of the main jig supporting plate, and the first body jig is fixed on the upper plate surface of the main jig supporting plate through the first jig supporting plate.
3. The clean air pipe double desorption valve far infrared welding frock of claim 2, its characterized in that: the space enclosed by the U-shaped plate surface of the first body jig accommodates a profiling structure which is arranged at the middle rear end of the desorption valve body and is not processed and is completely matched with the outer wall of the middle rear end of the desorption valve body; the second body jig comprises a die pressing positioning supporting block located below the to-be-welded surface of the desorption valve body, and the upper plate surface of the die pressing positioning supporting block is in contact with the lower plate surface of the to-be-welded surface of the desorption valve body.
4. The clean air pipe double desorption valve far infrared welding frock of claim 2, its characterized in that: the upper plate surfaces of the first body jig and the main jig supporting plate, and the upper plate surfaces of the second body jig and the first jig supporting plate are provided with stand columns.
5. The clean air pipe double desorption valve far infrared welding frock of claim 2, its characterized in that: the lower end face of the lower pressing rod is provided with a hoop curved surface which is in profile modeling with the outer wall of the desorption valve body.
6. The clean air pipe double desorption valve far infrared welding frock of claim 5, its characterized in that: the quantity of tool is one or more down, the pole processing of pushing down in the tool of pushing down has a continuous clamp curved surface or a plurality of discontinuous clamp curved surface, and when being the discontinuous clamp curved surface more than 2, the both sides at desorption valve body outer wall evagination structure are established separately to the cut-apart point of discontinuous clamp curved surface.
7. The clean air pipe double desorption valve far infrared welding frock of claim 1 which characterized in that: go up the mould and include mould backup pad, bypass shunt tubes tool, location centre gripping cylinder, bypass shunt tubes tool direct or indirect with it is fixed to go up the mould backup pad, the lower facial features processing of bypass shunt tubes tool have with the profile modeling location structure that bypass shunt tubes appearance matches, the slope of location centre gripping cylinder sets up, the last face processing of bypass shunt tubes tool has the hole that communicates with the profile modeling location structure of face down, the location centre gripping cylinder passes the hole and is used for the centre gripping the body of bypass shunt tubes.
8. The clean air pipe double desorption valve far infrared welding frock of claim 7, its characterized in that: the bypass shunt pipe jig is fixed with the lower plate surface of the upper die supporting plate through a U-shaped connecting plate, the lower plate surfaces of two side plates of the U-shaped connecting plate are fixed with the bypass shunt pipe jig, and the upper plate is fixed with the lower plate surface of the upper die supporting plate.
9. The clean air pipe double desorption valve far infrared welding frock of claim 2, its characterized in that: the infrared heating assembly comprises an infrared heating plate supporting plate, an upper infrared light tube accommodating block and a lower infrared light tube accommodating block, the upper infrared light tube accommodating block and the lower infrared light tube accommodating block are respectively arranged on the upper plate surface of the infrared heating plate supporting plate above and the lower plate surface of the infrared heating plate supporting plate below, accommodating cavities for placing infrared light tubes are machined in the upper infrared light tube accommodating block and the lower infrared light tube accommodating block, and the shapes of the infrared light tubes in the upper infrared light tube accommodating block and the lower infrared light tube accommodating block are matched with the surfaces to be welded in the bypass flow dividing pipe and the desorption valve body; an infrared heating plate supporting plate in the infrared heating assembly is fixed with a sliding block in a sliding block sliding assembly, a sliding rail in the sliding block sliding assembly is fixed with the rack, and the infrared heating plate supporting plate slides in a translation mode along the sliding rail under the action of a translation driving assembly.
10. The clean air pipe double desorption valve far infrared welding frock of claim 9 which characterized in that: translation drive assembly includes rotating electrical machines, transmission shaft, bar tooth, rotating electrical machines's power take off end is provided with the transmission shaft, the both ends of transmission shaft are provided with the gear, the bar tooth sets up the both sides in the frame, the gear with the bar tooth meshing, rotating electrical machines with the infrared heating board backup pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221114597.9U CN217433325U (en) | 2022-05-11 | 2022-05-11 | Clean air pipe double-desorption valve far infrared welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221114597.9U CN217433325U (en) | 2022-05-11 | 2022-05-11 | Clean air pipe double-desorption valve far infrared welding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217433325U true CN217433325U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221114597.9U Active CN217433325U (en) | 2022-05-11 | 2022-05-11 | Clean air pipe double-desorption valve far infrared welding tool |
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| Country | Link |
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| CN (1) | CN217433325U (en) |
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- 2022-05-11 CN CN202221114597.9U patent/CN217433325U/en active Active
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