CN113289791B - Metal pipeline galvanic couple corrosion protection device - Google Patents
Metal pipeline galvanic couple corrosion protection device Download PDFInfo
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- CN113289791B CN113289791B CN202110597083.7A CN202110597083A CN113289791B CN 113289791 B CN113289791 B CN 113289791B CN 202110597083 A CN202110597083 A CN 202110597083A CN 113289791 B CN113289791 B CN 113289791B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
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- Spray Control Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a galvanic corrosion protection device for a metal pipeline, and belongs to the technical field of pipeline equipment. A metal pipeline galvanic corrosion protection device comprises a fixed seat, an output shaft of a motor A penetrates through the inside of the fixed seat to extend to the inside of a circular cavity and is sleeved with a gear A, a limiting groove is formed in the rear side of the inner wall of an arc-shaped block, a paint box is arranged on the front side of the fixed seat, an inlet is formed in the upper end of the right side of the paint box, a pump body is arranged in the middle of the upper side of the paint box, a spray head is arranged on the upper side of the pump body, an annular rack A is arranged on the rear side of the circumferential outer wall of a hollow rotary column, the gear A is meshed with the annular rack A and is tightly matched with the annular rack A, the device can carry out coating treatment on the circumferential outer wall of the metal pipeline by rotating, so that an isolation protective layer can be formed on the outer wall, isolation and insulation are avoided by directly mounting an insulation bushing, the insulating mode is too simple, and the electrolyte is liquid with certain fluidity, so that the electrolyte can contact with the pipeline even after long-time use, so that the pipeline is corroded by galvanic couple.
Description
Technical Field
The invention relates to the technical field of pipeline equipment, in particular to a metal pipeline galvanic corrosion protection device.
Background
Galvanic corrosion, also called dissimilar metal corrosion or contact corrosion, refers to the phenomenon that when two materials with different electrochemical properties form a loop with a surrounding medium, the corrosion rate of the metal with a positive potential is slowed down, and the corrosion of the metal with a negative potential is accelerated. This phenomenon is due to the potential difference between the two materials, which forms a macro-corrosion galvanic cell. Galvanic corrosion, as a general corrosion phenomenon, can induce and even accelerate the occurrence of corrosion processes such as stress corrosion, pitting corrosion, crevice corrosion, hydrogen embrittlement, and the like. The generation of the galvanic corrosion simultaneously has the following three basic conditions that firstly, materials with different corrosion potentials have different corrosion potentials, and the driving force of the galvanic corrosion is the potential difference generated between the corroded metal and the electrically connected high-corrosion-potential metal or nonmetal; secondly, there are ion conducting branches, the electrolyte must be continuously present between the contacting metals, constituting the ion conducting branch of the galvanic corrosion cell; thirdly, there is an electronic conducting branch, i.e. the corroded metal is in direct contact with a metal or nonmetal with high potential, or the corroded metal is electrically connected with the metal or nonmetal through other electronic conductors, so as to form the electronic conducting branch of the corrosion battery. At present, the control principle of galvanic corrosion mainly comprises two aspects: 1. no galvanic couple is formed; 2. increasing the resistance of the galvanic reaction. The main control approaches include: selecting the same metal as much as possible or carrying out plating treatment on different metals; an insulating layer is arranged between different metals; isolating the electrolyte, etc. However, according to practical situations, many of the above approaches are not suitable for use after the working conditions are cured, and due to the grounding drainage treatment of the equipment and other lightning protection and interference prevention measures, the electric insulation performance on the site cannot be generally met.
The prior art publication No. CN105932441A provides an apparatus for preventing galvanic corrosion of dissimilar metal devices/parts, which comprises a first potential metal part and a second potential metal part in contact with the first potential metal part and having a potential difference therebetween by providing a dissimilar metal means, and which comprises an insulating bush installed between the first potential metal part and the second potential metal part. Although the device has more beneficial effects, the following problems still exist: the device is isolated and insulated by directly installing the insulating bush, is too simple, and the electrolyte is liquid with certain fluidity, can still be contacted after being used for a long time, and has poor effect.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a metal pipeline galvanic corrosion protection device to solve the problems in the background technology.
2. Technical scheme
A metal pipeline galvanic corrosion protection device comprises a fixing seat, wherein a round cavity is formed in the fixing seat, a motor A is arranged in the rear side of the fixing seat, an output shaft of the motor A penetrates through the inside of the fixing seat to extend into the round cavity and is sleeved with a gear A, an arc-shaped block is arranged on the upper side of the fixing seat, a limiting groove is formed in the rear side of the inner wall of the arc-shaped block, a paint box is arranged on the front side of the fixing seat, an inlet is formed in the upper end of the right side of the paint box, a pump body is arranged in the middle of the upper side of the paint box, a spray head is arranged on the upper side of the pump body, a hollow rotary column is arranged in the fixing seat, an annular rack A is arranged on the rear side of the circumferential outer wall of the hollow rotary column, a fixing lug A is arranged on the rear side of the circumferential inner wall of the hollow rotary column, a fixing ring is fixedly arranged above the fixing lug A, a plurality of limiting columns are arranged on the circumferential outer wall of the fixing ring at equal intervals, a machine cavity is formed in one of the limiting columns, the machine cavity is internally provided with a motor B, an output shaft of the motor B penetrates through the inner wall of the machine cavity to extend to the interior of a limiting column and is sleeved with a gear B, the circumferential outer wall of the limiting column is rotatably connected with a rotary drum, one circumferential inner wall of the rotary drum is provided with an annular rack B, one side of the circumferential outer wall of the rotary drum is fixedly provided with a U-shaped rubber conveying block, the front side of the hollow rotary column is provided with an annular limiting frame, the front side of the hollow rotary column, close to the edge, is rotatably connected with an adjusting column through a pin shaft, one side of the circumferential outer wall of the adjusting column is provided with a telescopic column, the circumferential outer wall of the telescopic column is sleeved with a spring, the inner end of the telescopic column penetrates through the interior of the spring to extend to the exterior and is rotatably connected with a square block, the front side of the hollow rotary column is provided with a plurality of fixed columns at equal intervals in an annular shape, the outer side of the fixed columns is rotatably connected with a press block through a pin shaft, the inner end of the press block is rotatably connected with a hollow shaft through a pin shaft, y-shaped rods are welded on the outer wall of the circumference of the hollow shaft, and arc-shaped rolling shafts are rotatably connected between the two Y-shaped rods through pin shafts.
Preferably, the outer wall of the circumference of the gear A penetrates through the inner wall of the circular cavity and extends to the outside, the gear A is meshed with the annular rack A and is connected with the annular rack A in a sliding mode, and the limiting groove is connected with the annular rack A in a sliding mode.
Preferably, the output end of the pump body is communicated with the interior of the spray head, and the output end of the pump body is communicated with the interior of the paint box.
Preferably, the circumferential outer wall of the gear B penetrates through the interior of the limiting column and extends to the exterior, and the gear B is in meshed connection with the annular rack B.
Preferably, one side of the circumferential outer wall of the annular limiting frame is provided with a fixing lug B, and the fixing lug B is rotatably connected with the square block through a pin shaft.
Preferably, the inside of the circumference of the annular limiting frame is in annular shape and is connected with sliding groove blocks at equal intervals in a rotating mode through pin shafts, and the sliding groove blocks are connected with the pressing block in a sliding mode.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the invention extends to the inside of a circular cavity by penetrating the inside of a fixed seat at an output shaft of a motor A and is sleeved with a gear A, an arc-shaped block is arranged at the upper side of the fixed seat, a limit groove is arranged at the rear side of the inner wall of the arc-shaped block, a paint box is arranged at the front side of the fixed seat, an inlet is arranged at the upper end of the right side of the paint box, a pump body is arranged at the middle part of the upper side of the paint box, a spray head is arranged at the upper side of the pump body, a hollow rotary column is arranged in the fixed seat, an annular rack A is arranged at the rear side of the circumferential outer wall of the hollow rotary column, the gear A is meshed with the annular rack A, the limit groove is connected with the annular rack A in a sliding way, and the structures are tightly matched, the device can carry out coating treatment on the circumferential outer wall of the metal pipeline by rotating, so that an isolation protective layer can be formed on the outer wall, the isolation and the insulation by directly installing an insulation bushing are avoided, the operation is simple, the electrolyte is a liquid with certain fluidity, and the electrolyte can be contacted with the liquid for a long time so as to cause the galvanic corrosion of the pipeline.
(2) According to the invention, the annular limiting frame is arranged on the front side of the U-shaped rubber conveying block, the adjusting column is rotatably connected to the front side of the hollow rotary column close to the edge through the pin shaft, the spring is sleeved on the outer wall of the circumference of the telescopic column, the inner end of the telescopic column penetrates through the interior of the spring to extend to the outside and is rotatably connected with the square block, the plurality of fixing columns are fixedly arranged on the front side of the hollow rotary column at equal intervals in an annular shape, the arc-shaped rolling shaft is rotatably connected between the two Y-shaped rods through the pin shaft, so that a metal pipeline can be directly pushed inwards, the metal pipeline can be conveniently placed through the design of the arc-shaped rolling shaft, meanwhile, the rotation of the arc-shaped rolling shaft in the vertical direction can be matched with the rotation of the hollow rotary column to perform irregular circular motion, and the condition that the metal pipeline cannot be plated is avoided.
(3) The invention is characterized in that a fixing lug A is arranged at the rear side of the circumferential inner wall of a hollow rotary column, a fixing ring is fixedly arranged above the fixing lug A, a plurality of limit columns are annularly and equidistantly arranged on the circumferential outer wall of the fixing ring, a machine cavity is arranged in one limit column, an output shaft of a motor B passes through the inner wall of the machine cavity and extends to the interior of the limit column and is sleeved with a gear B, the circumferential outer wall of the limit column is rotatably connected with a rotary drum, an annular rack B is arranged on the circumferential inner wall of one rotary drum, a U-shaped rubber conveying block is fixedly arranged at one side of the circumferential outer wall of the rotary drum, and the U-shaped rubber conveying block is designed so that when a metal pipeline is subjected to coating treatment, the U-shaped rubber conveying block is driven to rotate through the rotation of the rotary drum, the metal pipeline can be intermittently conveyed, sufficient time is left for the coating in the same area, the conveying can be carried out, and the continuity of the coating treatment is improved, the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is an exploded view of the retaining ring structure of the present invention;
FIG. 4 is a cross-sectional view of a spacing post structure of the present invention;
FIG. 5 is an exploded view of the annular spacing frame structure of the present invention;
FIG. 6 is an enlarged view of the structure at A of the present invention;
the reference numbers in the figures illustrate: 1. a fixed seat; 101. a circular cavity; 102. a motor A; 103. a gear A; 104. an arc-shaped block; 105. a limiting groove; 2. a paint box; 201. a pump body; 202. a spray head; 3. an inlet; 4. a hollow rotary column; 401. an annular rack A; 402. a fixing lug A; 403. a fixing ring; 404. a limiting column; 405. a machine cavity; 406. a motor B; 407. a gear B; 408. a rotating drum; 409. an annular rack B; 4010. a U-shaped rubber conveying block; 5. an annular limiting frame; 501. an adjustment column; 502. a telescopic column; 503. a spring; 504. a square block; 505. fixing a column; 506. briquetting; 507. a hollow shaft; 508. a Y-shaped rod; 509. an arc-shaped roller; 5010. a fixing lug B; 5011. a chute block.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, the present invention provides a technical solution:
a metal pipeline galvanic couple corrosion protection device comprises a fixing seat 1, a circular cavity 101 is formed in the fixing seat 1, a motor A102 is arranged in the rear side of the fixing seat 1, an output shaft of the motor A102 penetrates through the inside of the fixing seat 1 and extends to the inside of the circular cavity 101 and is sleeved with a gear A103, an arc block 104 is arranged on the upper side of the fixing seat 1, a limiting groove 105 is formed in the rear side of the inner wall of the arc block 104, a paint box 2 is arranged on the front side of the fixing seat 1, an inlet 3 is formed in the upper end of the right side of the paint box 2, a pump body 201 is arranged in the middle of the upper side of the paint box 2, a spray head 202 is arranged on the upper side of the pump body 201, a hollow rotary column 4 is arranged in the fixing seat 1, an annular rack A401 is arranged on the rear side of the circumferential outer wall of the hollow rotary column 4, a fixing lug A402 is arranged on the rear side of the circumferential inner wall of the hollow rotary column 4, a fixing ring 403 is fixedly provided with a plurality of limiting columns 404 at equal intervals in an annular shape, a machine cavity 405 is formed in one of the limiting columns 404, a motor B406 is arranged in the machine cavity 405, an output shaft of the motor B406 penetrates through the inner wall of the machine cavity 405 to extend into the limiting column 404 and is sleeved with a gear B407, the circumferential outer wall of the limiting column 404 is rotatably connected with a rotary drum 408, the circumferential inner wall of one rotary drum 408 is provided with an annular rack B409, one side of the circumferential outer wall of the rotary drum 408 is fixedly provided with a U-shaped rubber conveying block 4010, the front side of the hollow rotary column 4 is provided with an annular limiting frame 5, the front side of the hollow rotary column 4 close to the edge is rotatably connected with an adjusting column 501 through a pin shaft, one side of the circumferential outer wall of the adjusting column 501 is provided with a telescopic column 502, the circumferential outer wall of the telescopic column 502 is sleeved with a spring 503, the inner end of the telescopic column 502 penetrates through the inner part of the spring 503 to extend to the outer part and is rotatably connected with a square block 504, the front side of the hollow rotary column 4 is provided with a plurality of fixing columns 505 at equal intervals in an annular shape, the outer side of the fixing column 505 is rotatably connected with a pressing block 506 through a pin shaft 507 in a rotating way, y-shaped rods 508 are welded on the outer circumferential wall of the hollow shaft 507, and an arc-shaped roller 509 is rotatably connected between the two Y-shaped rods 508 through a pin shaft. Closely cooperate between the structure for the device can carry out cladding material through rotating to metal pipeline circumference outer wall and handle, makes it can form the isolated protective layer of one deck at the outer wall, has avoided direct mount insulating bush to carry out isolated insulation, and is too simple, and the electrolyte has certain mobile liquid, uses for a long time still to make its contact make the condition of pipeline galvanic corrosion.
Specifically, the outer circumferential wall of the gear A103 penetrates through the inner wall of the circular cavity 101 and extends to the outside, the gear A103 is meshed with the annular rack A401 and connected with the annular rack A401 in a sliding mode, and the limiting groove 105 is connected with the annular rack A401 in a sliding mode. The hollow rotary column 4 is rotated by the rotation of the gear a103 by meshing with the annular rack a 401.
Further, the output end of the pump body 201 is communicated with the interior of the spray head 202, and the output end of the pump body 201 is communicated with the interior of the paint box 2. The paint in the paint box 2 is coated on the circumferential outer wall of the metal pipeline through the spray head 202 by the pump body 201.
Still further, the outer wall of the circumference of the gear B407 passes through the inside of the limiting column 404 and extends to the outside, and the gear B407 is meshed with the annular rack B409. The gear B407 rotates to drive the annular rack B409 to rotate, so that the rotary drum 408 rotates, and the U-shaped rubber conveying block 4010 rotates to convey the metal pipeline.
Furthermore, one side of the circumferential outer wall of the annular limiting frame 5 is provided with a fixing lug B5010, and the fixing lug B5010 is rotatably connected with the square block 504 through a pin shaft. The elastic force of the spring 503 causes the telescopic column 502 to push the square block 504, so as to drive the annular spacing frame 5 to rotate through the fixing lug B5010.
It is worth to be noted that the inside of the circumference of the annular limiting frame 5 is connected with the sliding groove blocks 5011 in an annular and equidistant mode through the pin shaft in a rotating mode, and the sliding groove blocks 5011 are connected with the pressing block 506 in a sliding mode. The pressing block 506 changes the angle through the rotation of the annular limiting frame 5, and is extruded through the limiting of the sliding groove block 5011.
The working principle is as follows: when the metal pipeline galvanic corrosion protection device is needed, firstly, a metal pipeline is directly placed into a hollow rotary column 4, an annular limiting frame 5 is arranged on the front side of the hollow rotary column 4, a fixing lug B5010 is arranged on one side of the circumferential outer wall of the annular limiting frame 5, the fixing lug B5010 is rotatably connected with a square block 504 through a pin shaft, through the elastic force action of a spring 503, a telescopic column 502 pushes the square block 504, so that the annular limiting frame 5 is driven to rotate through the fixing lug B5010, the inner part of the circumference of the annular limiting frame 5 is in annular equal interval and is rotatably connected with a sliding groove block 5011 through the pin shaft, the sliding groove 5011 is slidably connected with a pressing block 506, through the rotation of the annular limiting frame 5, the pressing block 506 changes the angle, through the limiting of the sliding groove 5011, the pressing block is extruded, at the moment, through the rotation of an output shaft of a motor A102, because the output shaft of the motor A102 penetrates through the inner part of the fixing base 1 and extends to the inner part of a round cavity 101 and is sleeved with a gear A103, the outer circumferential wall of the gear A103 penetrates through the inner wall of the circular cavity 101 and extends to the outside, the gear A103 is meshed with the annular rack A401 and is connected with the annular rack A401, the limiting groove 105 is connected with the annular rack A401 in a sliding mode, the gear A103 rotates and is meshed with the annular rack A401, the hollow rotary column 4 rotates to drive the metal pipeline to rotate, the fixing ring 403 is fixedly arranged above the fixing lug A402, the outer circumferential wall of the fixing ring 403 is provided with a plurality of limiting columns 404 at equal intervals in an annular mode, the output shaft of the motor B406 rotates, the output shaft of the motor B406 penetrates through the inner wall of the cavity 405 and extends to the inside of the limiting columns 404 and is sleeved with the gear B407, the outer circumferential wall of the gear B407 penetrates through the inside of the limiting columns 404 and extends to the outside, the gear B407 is meshed with the annular rack B409 and is connected with the annular rack B409, the gear B407 rotates to drive the annular rack B409 to rotate, so that the rotary drum 408 rotates, and the U-shaped rubber conveying block 4010 rotates to convey the metal pipeline, the intermittent conveying of the metal pipeline can be realized, sufficient time is left for the coating passing through the spray head 202 in the same area, the conveying can be realized, and the continuity of coating treatment is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a metal pipeline galvanic couple corrosion protection device, includes fixing base (1), its characterized in that: a round cavity (101) is formed in the fixing seat (1), a motor A (102) is arranged in the rear side of the fixing seat (1), an output shaft of the motor A (102) penetrates through the inside of the fixing seat (1) and extends into the round cavity (101) and is sleeved with a gear A (103), an arc-shaped block (104) is arranged on the upper side of the fixing seat (1), a limiting groove (105) is formed in the rear side of the inner wall of the arc-shaped block (104), a paint box (2) is arranged on the front side of the fixing seat (1), an inlet (3) is formed in the upper end of the right side of the paint box (2), a pump body (201) is arranged in the middle of the upper side of the paint box (2), a spray head (202) is arranged on the upper side of the pump body (201), a hollow rotary column (4) is arranged in the fixing seat (1), an annular rack A (401) is arranged on the rear side of the circumferential outer wall of the hollow rotary column (4), and a fixing lug A (402) is arranged on the rear side of the circumferential inner wall of the hollow rotary column (4), a fixing ring (403) is fixedly arranged above the fixing lug A (402), a plurality of limiting columns (404) are annularly arranged on the outer wall of the circumference of the fixing ring (403) at equal intervals, a machine cavity (405) is formed in one of the limiting columns (404), a motor B (406) is arranged in the machine cavity (405), an output shaft of the motor B (406) penetrates through the inner wall of the machine cavity (405) and extends to the interior of the limiting column (404) and is sleeved with a gear B (407), the outer wall of the circumference of the limiting column (404) is rotatably connected with a rotary drum (408), an annular rack B (409) is arranged on the inner wall of the circumference of the rotary drum (408), a U-shaped rubber conveying block (4010) is fixedly arranged on one side of the outer wall of the circumference of the rotary drum (408), an annular limiting frame (5) is arranged on the front side of the hollow rotary column (4), and an adjusting column (501) is rotatably connected to the position, close to the edge, of the front side of the hollow rotary column (4), adjust post (501) circumference outer wall one side and be equipped with flexible post (502), flexible post (502) circumference outer wall cover is equipped with spring (503), flexible post (502) inner passes spring (503) inside and extends to the outside and rotates and be connected with square piece (504), cavity rotary column (4) front side is the annular equidistant a plurality of fixed columns (505) that have set firmly, fixed column (505) outside is rotated through the round pin axle and is connected with briquetting (506), briquetting (506) inner is rotated through the round pin axle and is connected with quill shaft (507), quill shaft (507) circumference outer wall welding has Y type pole (508), two rotate through the round pin axle between Y type pole (508) and be connected with arc roller bearing (509).
2. The metal pipeline galvanic corrosion protection device of claim 1, wherein: the outer wall of the circumference of the gear A (103) penetrates through the inner wall of the circular cavity (101) and extends to the outside, the gear A (103) is meshed with the annular rack A (401) and connected with the annular rack A (401), and the limiting groove (105) is connected with the annular rack A (401) in a sliding mode.
3. The metal pipeline galvanic corrosion protection device of claim 1, wherein: the output end of the pump body (201) is communicated with the interior of the spray head (202), and the output end of the pump body (201) is communicated with the interior of the paint box (2).
4. The metal pipeline galvanic corrosion protection device of claim 1, wherein: the outer wall of the circumference of the gear B (407) penetrates through the inner part of the limiting column (404) and extends to the outer part, and the gear B (407) is meshed and connected with the annular rack B (409).
5. The metal pipeline galvanic corrosion protection device of claim 1, wherein: the fixing lug B (5010) is arranged on one side of the circumferential outer wall of the annular limiting frame (5), and the fixing lug B (5010) is rotationally connected with the square block (504) through a pin shaft.
6. The metal pipeline galvanic corrosion protection device of claim 1, wherein: the inner part of the circumference of the annular limiting frame (5) is in annular equal interval and is rotationally connected with sliding groove blocks (5011) through pin shafts, and the sliding groove blocks (5011) are in sliding connection with the pressing block (506).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110597083.7A CN113289791B (en) | 2021-05-31 | 2021-05-31 | Metal pipeline galvanic couple corrosion protection device |
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| CN202110597083.7A CN113289791B (en) | 2021-05-31 | 2021-05-31 | Metal pipeline galvanic couple corrosion protection device |
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| CN113289791A CN113289791A (en) | 2021-08-24 |
| CN113289791B true CN113289791B (en) | 2022-02-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2270035B1 (en) * | 1974-03-08 | 1979-01-26 | Fives Cail Babcock | |
| CN202725398U (en) * | 2012-08-20 | 2013-02-13 | 吴江市三达五金工具厂 | Full-automatic processing mechanism for paint spraying of perforated workpieces |
| CN103623960A (en) * | 2013-12-04 | 2014-03-12 | 苏州多贝机械科技有限公司 | Anticorrosive chlorinated rubber paint spraying device |
| CN105435995B (en) * | 2015-11-28 | 2017-12-05 | 南京昱晟机器人科技有限公司 | A kind of magnetic adsorption type wind-powered electricity generation leg surface maintaining robot |
| CN206123073U (en) * | 2016-09-29 | 2017-04-26 | 浙江厚达智能科技股份有限公司 | Motor end cover subassembly equipment |
| CN208612878U (en) * | 2018-05-22 | 2019-03-19 | 肖国方 | A kind of oiling Rustproofing apparatus of sheet metal |
| CN108704799A (en) * | 2018-07-05 | 2018-10-26 | 江苏赛博宇华科技有限公司 | A kind of VR glasses production shell spray equipment |
| CN208800277U (en) * | 2018-07-18 | 2019-04-30 | 鄢碧珠 | A kind of synthetic leather coating apparatus |
| CN209308019U (en) * | 2018-12-19 | 2019-08-27 | 泰州润伟机械有限公司 | A kind of automatic installation apparatus suitable for pile end board installation |
| CN211208106U (en) * | 2020-03-09 | 2020-08-07 | 江西信昌工业制造有限公司 | High stable enameled copper wire painting device |
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