CN110316469B - Anti-oxidation and anti-rust device for inner cavity of metal tubular structural member - Google Patents
Anti-oxidation and anti-rust device for inner cavity of metal tubular structural member Download PDFInfo
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- CN110316469B CN110316469B CN201910522221.8A CN201910522221A CN110316469B CN 110316469 B CN110316469 B CN 110316469B CN 201910522221 A CN201910522221 A CN 201910522221A CN 110316469 B CN110316469 B CN 110316469B
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- rust
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- inner cavity
- corrosion
- rubber sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
- B65D59/02—Plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Closures For Containers (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention provides an anti-oxidation and anti-rust device for an inner cavity of a metal tubular member, which comprises the steps of eliminating or isolating oxides in a sealed inner cavity by adopting a gas-phase anti-rust and anti-corrosion material A and sealing the inner cavity of the metal tubular member by adopting a sealing plug. The invention overcomes the pollution caused by using a grease sealing mode, and the sealing plug can be repeatedly used for a plurality of times, thereby saving the cost. The method of the invention adopts the vapor phase corrosion inhibitor, and has good protection effect: the gas phase corrosion inhibitor can be continuously and slowly gasified at normal temperature, volatilized corrosion inhibition gas is adsorbed on the exposed metal surface to form a stable protective film with the thickness of one to two molecules, the protective film can effectively prevent the metal from being corroded by oxygen, moisture and other environmental atmospheres, and the gas phase corrosion inhibitor can be continuously volatilized and can be always in a saturated state in a closed space, so that the long-term, stable and excellent antirust effect can be achieved.
Description
Technical Field
The invention relates to a solution for providing oxidation resistance or corrosion resistance for a metal inner cavity.
Background
The luminal surface of many tubular members is its working surface, such as: the inner cavities of the tubular structural members for conveying grains and industrial materials and the inner cavity of the gun barrel are required not only to be deformed but also not to be rusted and oxidized and to be kept smooth. During the storage and transportation, the anti-oxidation and anti-corrosion treatment is needed. It is common practice to coat the surface of its lumen with a layer of protective oil or grease. This protection method has obvious disadvantages: the protection treatment before sealing and the elimination of the protective layer before starting need to consume more manpower, are not fast enough and have low efficiency.
In order to solve the above problems, it is necessary to take more convenient and faster protective measures.
Disclosure of Invention
The technical problem is as follows: the invention aims to efficiently perform anti-oxidation and anti-corrosion treatment on the inner cavity of a metal tubular structural member before sealing and reduce the consumption of manpower and material resources during unsealing.
The technical scheme is as follows: in order to achieve the purpose, the invention provides the following technical scheme:
an anti-oxidation and anti-rust device for an inner cavity of a metal tubular structural member is characterized by comprising a gas-phase anti-rust and anti-corrosion material A for eliminating or isolating oxides in a sealed inner cavity and a sealing plug for sealing the inner cavity of the metal tubular structural member; adopt the sealing plug to seal the inner chamber of metal tubular structure spare, wherein, the sealing plug includes: the device comprises a nut (1), an elastic retainer ring (2), a pressure plate (3), an expansion plate (4), a screw (5), a rubber sleeve (6) and a bolt (7); the elastic retainer ring (2) is arranged on the nut (1), and the pressure plate (3) is sleeved on the nut (1) and clamped between the nut (1) and the elastic retainer ring (2); the rubber sleeve (6) is sleeved on the outer surface of the expansion disc (4), the bolt (7) penetrates through the rubber sleeve (6) and the expansion disc (4) and is close to the outer plane of the bottom of the rubber sleeve (6), the screw (5) sequentially penetrates through the rubber sleeve (6) and the expansion disc (4) and is installed on the bolt (7), and the nut (1) is installed on the bolt (7);
the nut (1) is a tubular structural part with internal threads, the internal hole of the nut is a screw hole (1-4), the screw hole (1-4) is matched with a bolt (7), and the nut (1) is screwed to push the pressing disc (3) to move in parallel in the axis direction of the nut (1); one end of the nut (1) is thick, the other end of the nut is thin, a squeezing plane (1-2) vertical to the axis of the screw hole (1-4) is formed at the junction of the thick end and the thin end, and when the nut (1) is screwed down, the squeezing plane (1-2) pushes the pressing disc (3) to enable the pressing disc to move in parallel along the axis direction; one end of the nut (1) which is thinner is designed with an annular clamping groove (1-3) for installing an elastic check ring (2); a shaft-shaped structural member with a smooth surface, namely a supporting shaft (1-5), is arranged between the extruding and pushing plane (1-2) and the annular clamping groove (1-3) and is used for supporting the pressing disc (3) during installation;
the elastic check ring (2) is an annular structural member with an opening (2-2), two sides of the opening (2-2) are designed to be in a lug shape (2-5), each lug (2-5) is provided with a first through hole (2-3), the elastic check ring (2) is arranged in the annular clamping groove (1-3), the diameter of an inner hole (2-4) of the elastic check ring (2) is smaller than that of the supporting shaft (1-5), the diameter of an outer edge (2-1) of the elastic check ring (2) is larger than that of the supporting shaft (1-5), and the pressure plate (3) is clamped between the extruding and pushing plane (1-2) and the elastic check ring (2);
the pressing plate (3) is a disc-shaped structural member with a second through hole (3-1) in the middle, the second through hole (3-1) is sleeved on a supporting shaft (1-5) of the nut (1), the pressing plate (3) is clamped between the extruding and pushing plane (1-2) and the elastic retainer ring (2), the bottom plane (3-2) of the plate is close to the extruding and pushing plane (1-2), and the inner plane (3-4) of the pressing plate is close to the elastic retainer ring (2);
the expansion disc (4) is a bowl-shaped elastic chuck, a third through hole (4-3) is formed in the center of the bottom plane of the expansion disc, and a screw rod part of the bolt (7) passes through the third through hole (4-3); a plurality of first small holes (4-4) are annularly arranged around the third through hole (4-3), the first small holes (4-4) are through holes, and the screw rod part of the screw (5) penetrates through the first small holes; a plurality of gaps which are not communicated up and down are arranged on the periphery of the expansion disc (4), wherein the gap from the opening to the upper edge is a second gap (4-2), and the gap from the opening to the third through hole (4-3) is a first gap (4-1); the first gap (4-1) and the second gap (4-2) can ensure that the expansion disc (4) expands and contracts in a certain range;
the rubber sleeve (6) is a bowl-shaped rubber sleeve, a fourth through hole (6-3) is formed in the center of the bottom plane of the rubber sleeve, and a screw rod part of the bolt (7) passes through the fourth through hole (6-3); a plurality of second small holes (6-2) are annularly arranged around the fourth through hole (6-3), the second small holes (6-2) are through holes, and the screw rod part of the screw (5) penetrates through the second small holes when the screw is installed; the rubber sleeve (6) is sleeved on the outer surface of the expansion disc (4) by utilizing the elasticity of the rubber sleeve;
the bolt (7) is a flat-head screw-shaped structural member, and the head of the bolt is provided with a plurality of small penetrating screw holes which are annularly arranged and used for mounting the screw (5); the body axial surface of the bolt (7) forms threads, the threads are matched with the screw holes (1-4), the pressure plate (3) is extruded when the bolt is screwed down, the expansion disc (4) and the rubber sleeve (6) are expanded, the pressure plate (3) is pulled out of the expansion disc (4) through the annular clamping grooves (1-3) and the elastic retaining ring (2) in the nut (1) when the bolt is unscrewed, the expansion disc (4) and the rubber sleeve (6) are elastically contracted by self, and the outer edge size of the expansion disc (4) and the rubber sleeve (6) is reduced; the plane of the head of the bolt (7) close to one side of the thread is a sealing plane, and the sealing plane is close to the outer plane of the bottom of the rubber sleeve (6) during installation.
Preferably, the gas-phase rust and corrosion preventing material A comprises a rust and corrosion preventing material and a drying agent.
Preferably, the rust and corrosion preventing material comprises rust and corrosion preventing powder and an adhesion material thereof.
Preferably, the preparation method of the gas-phase rust and corrosion preventing material A is as follows:
dissolving the rust-proof and corrosion-proof powder in a solvent, absorbing the solvent on an adhesive material to prepare rust-proof and corrosion-proof paper, and fixing a small package of drying agent on the rust-proof and corrosion-proof paper to prepare the gas-phase rust-proof and corrosion-proof material A.
Preferably, the rust-proof and corrosion-proof paper is wound on a reel to form a plurality of layers of roll paper, and is made into an extensible roll-shaped rust-proof and corrosion-proof paper roll.
Preferably, the outer edge of the upper end of the rubber sleeve (6) is provided with a plurality of strip-shaped bulges (6-1), and the geometric dimension of the bulges (6-1) is adapted to that of the spiral shallow grooves arranged in the inner cavity of the tubular member because the inner cavity of the tubular member is provided with the spiral shallow grooves;
the thicker end of the nut (1) is arranged in a multi-edge surrounding manner to form a screwing handle part (1-1) which is in a hexagonal shape or a square shape.
The invention relates to a method for an anti-oxidation and anti-rust device for an inner cavity of a metal tubular structural member, which comprises the following specific steps: the method comprises the steps of firstly wiping and maintaining the inner cavity of the metal tubular structural member, then drawing the anti-rust and anti-corrosion paper with a plurality of small bags of drying agents to a proper length, enabling the surface with the anti-rust and anti-corrosion powder to face the surface of the metal inner cavity, tightly pressing the anti-rust and anti-corrosion paper on the surface of the inner cavity of the tubular structural member by using a sealing plug at the opening part of the metal tubular structural member, and simultaneously sealing the inner cavity.
Has the advantages that: compared with the prior art, the invention has the beneficial effects that:
the sealing plug can be repeatedly used, so that the cost is saved.
And secondly, the pollution caused by using a grease sealing mode is overcome.
Thirdly, the method of the invention adopts the vapor phase inhibitor, which has good protection effect: the gas phase corrosion inhibitor can be continuously and slowly gasified at normal temperature, volatilized corrosion inhibition gas is adsorbed on the exposed metal surface to form a stable protective film with the thickness of one to two molecules, the protective film can effectively prevent the metal from being corroded by oxygen, moisture and other environmental atmospheres, and the gas phase corrosion inhibitor can be continuously volatilized and can be always in a saturated state in a closed space, so that the long-term, stable and excellent antirust effect can be achieved. Firstly, the slow-gasification and volatilization corrosion inhibition gas can reach a fine space and be adsorbed on the exposed metal surface to form protection; secondly, the protection time is long, because of slow gasification and volatilization of the gas-phase rust-proof anticorrosive agent, the gas-phase rust-proof anticorrosive agent can last for a long time, and the maximum time can reach more than 10 years.
And fourthly, the inner cavity of the metal tubular structural part is conveniently and efficiently subjected to anti-oxidation and anti-corrosion treatment before sealing, and the consumption of manpower and material resources during unsealing is reduced. The protection and the removal of the protection are very convenient.
Drawings
FIG. 1 is a schematic view of a sealing plug;
fig. 2 is a schematic view of the nut 1 of the sealing plug;
fig. 3 is a schematic structural view of the circlip 2 of the sealing plug;
fig. 4 is a schematic view of the structure of the sealing plug 3;
fig. 5 is a structural schematic diagram of the expansion disc 4 of the sealing plug;
fig. 6 is a schematic structural view of the rubber sleeve 6 of the sealing plug;
the figure shows that: the device comprises a nut 1, an elastic retainer ring 2, a pressure plate 3, an expansion plate 4, a screw 5, a rubber sleeve 6 and a bolt 7;
Detailed Description
The present invention will be further described with reference to the following examples.
The rust-proof and corrosion-proof powder used in the following examples is produced by Nantong Yongyu antirust materials Co., Ltd, and the desiccant is produced by Jiangsu Ooka Kai packaging science Co., Ltd.
The technical scheme of the invention comprises two aspects: firstly, the inner cavity of the metal tubular structural part is sealed by adopting a sealing plug, and secondly, oxides such as oxygen molecules and water molecules in the sealed inner cavity are eliminated or isolated by adopting a gas-phase rust-proof and anti-corrosion material A.
As shown in fig. 1, the sealing plug comprises: nut 1, circlip 2, pressure disk 3, expansion disk 4, screw 5, rubber sleeve 6, bolt 7. The elastic retainer ring 2 is arranged on the nut 1, and the pressure plate 3 is sleeved on the nut 1 and clamped between the nut 1 and the elastic retainer ring 2; the rubber sleeve 6 is sleeved on the outer surface of the expansion disc 4, the bolt 7 penetrates through the rubber sleeve 6 and the expansion disc 4 to be close to the outer plane of the bottom of the rubber sleeve 6, the screw 5 sequentially penetrates through the rubber sleeve 6 and the expansion disc 4 and is installed on the bolt 7, and the nut 1 is installed on the bolt 7.
As shown in fig. 2, the nut 1 is a tubular structural member with internal threads, the internal hole is a screw hole 1-4, the screw hole 1-4 is matched with a bolt 7, and the nut 1 is screwed to push the pressure plate 3 to move in parallel in the axial direction of the nut 1; one end of the nut 1 is thicker, the other end is thinner, the thicker end is preferably designed into a multi-edge surrounding arrangement to form a screwing handle part 1-1, which is convenient to be directly screwed by hands and can also be designed into a hexagonal shape or a square shape to be screwed by other tools; a squeezing plane 1-2 vertical to the axis of the screw hole 1-4 is formed at the junction of the thick end and the thin end, and when the nut 1 is screwed down, the squeezing plane 1-2 pushes the squeezing disc 3 to enable the squeezing disc to move in parallel along the axis direction; one thinner end of the nut 1 is provided with an annular clamping groove 1-3 for installing an elastic retainer ring 2; a shaft-shaped structural member with a smooth surface, namely a supporting shaft 1-5, is arranged between the extrusion plane 1-2 and the annular clamping groove 1-3 and is used for supporting the pressure plate 3 during installation.
As shown in figure 3, the elastic retainer ring 2 is preferably a Chinese standard component, which is an annular structural component with an opening 2-2, the two sides of the opening 2-2 are designed into a lug 2-5 shape, each lug 2-5 is provided with a first through hole 2-3, so that the installation and the disassembly are convenient, the elastic retainer ring 2 is installed in an annular clamping groove 1-3, the diameter of an inner hole 2-4 of the elastic retainer ring 2 is smaller than that of a supporting shaft 1-5, the diameter of an outer edge 2-1 of the elastic retainer ring 2 is larger than that of the supporting shaft 1-5, during installation, the pressure plate 3 is clamped between the extruding and pushing plane 1-2 and the elastic retainer ring 2, and when the nut 1 is unscrewed outwards, the elastic retainer ring 2 in the annular clamping groove 1-3 drives the pressure plate 3 to move outwards along the axial line.
As shown in fig. 4, the pressure plate 3 is a disc-shaped structural member with a second through hole 3-1 in the middle, when the pressure plate is installed, the second through hole 3-1 is sleeved on the support shaft 1-5 of the nut 1, the pressure plate 3 is clamped between the extrusion plane 1-2 and the elastic collar 2, the bottom plane 3-2 of the plate is close to the extrusion plane 1-2, the inner plane 3-4 of the plate is close to the elastic collar 2 and is extruded by the extrusion plane 1-2 and the elastic collar 2, and the pressure plate 3 can move in parallel along the axial direction.
As shown in fig. 5, the expansion disc 4 is a bowl-shaped elastic chuck, and a third through hole 4-3 is formed in the center of the bottom plane of the expansion disc, and the screw part of the bolt 7 passes through the hole 4-3 during installation; a plurality of first small holes 4-4 are annularly arranged around the hole 4-3, the first small holes 4-4 are through holes, and the screw rod part of the screw 5 passes through the through holes during installation; a plurality of gaps which are not communicated up and down are arranged on the periphery of the expansion disc 4, wherein the gap from the opening to the upper edge is a second gap 4-2, and the gap from the opening to the hole 4-3 is a first gap 4-1; the first slit 4-1 and the second slit 4-2 ensure that the expansion disk 4 expands and contracts to a certain extent.
As shown in fig. 6, the rubber cover 6 is a bowl-shaped rubber cover, a fourth through hole 6-3 is arranged at the center of the bottom plane of the rubber cover, and the screw part of the bolt 7 passes through the fourth through hole 6-3 during installation; a plurality of second small holes 6-2 are annularly arranged around the fourth through hole 6-3, the second small holes 6-2 are through holes, and a screw rod part of the screw 5 penetrates through the through holes during installation; according to the requirement, a plurality of strip-shaped bulges 6-1 are arranged on the outer edge of the upper end of the rubber sleeve 6, because the inner cavities of certain tubular parts are provided with spiral shallow grooves such as the inner cavity of a barrel of a rifled gun, the geometric dimension of the bulges 6-1 is adapted to the geometric dimension of the spiral shallow grooves; when the expansion disc is installed, the rubber sleeve 6 is sleeved on the outer surface of the expansion disc 4 by utilizing the elasticity of the rubber sleeve.
The bolt 7 is a flat-head screw-shaped structural member, and the head of the bolt is provided with a plurality of small penetrating screw holes which are annularly arranged and used for mounting the screw 5; the body axial surface of the bolt 7 forms screw threads, the screw threads are matched with the screw holes 1-4, when the bolt is screwed down, the pressure plate 3 is extruded, the expansion plate 4 and the rubber sleeve 6 are expanded, when the bolt is unscrewed, the pressure plate 3 is pulled out of the expansion plate 4 through the annular clamping grooves 1-3 and the elastic retaining ring 2 in the nut 1, the expansion plate 4 and the rubber sleeve 6 are contracted by the elasticity of the bolt, and the outer edge size of the expansion plate 4 and the rubber sleeve 6 is reduced; the plane of the head of the bolt 7 close to one side of the thread is a sealing plane which is close to the outer plane of the bottom of the rubber sleeve 6 during installation.
The gas-phase rust-proof and corrosion-proof material A comprises: antirust and anticorrosive material and desiccant.
The rust-proof and corrosion-proof material comprises rust-proof and corrosion-proof powder and an adhesion material thereof.
The anticorrosive agent is selected for different metal materials, and the most common gas-phase anticorrosive agent may have different corrosion accelerating effects on cadmium, magnesium, zinc and the like.
Preferably, the adhesive material is paper with better strength, the powder is dissolved in the solvent and then absorbed on the paper with better strength to prepare the rust-proof and corrosion-proof paper, and a certain amount of small-package desiccant is fixed on the rust-proof and corrosion-proof paper.
Preferably, the rust and corrosion preventive paper is wound on a roll to form a multi-layer roll, and is made into a roll, which is elongated as necessary.
Example 1
Assembly of parts of a sealing plug
Firstly, a through hole 3-1 of a pressure plate 3 is sleeved on a supporting shaft 1-5 of a nut 1, and a plate bottom plane 3-2 of the pressure plate 3 is close to a pushing plane 1-2 of the nut 1. And then the elastic retainer ring 2 is arranged in an annular clamping groove 1-3 of the nut 1, and the pressure plate 3 is clamped between the extruding and pushing plane 1-2 and the elastic retainer ring 2.
And secondly, sleeving the rubber sleeve 6 on the outer surface of the expansion disc 4 to enable the small holes 6-2 of the rubber sleeve 6 to be aligned with the small holes 4-4 of the expansion disc 4 one by one.
And thirdly, a bolt 7 penetrates through a hole 6-3 of the rubber sleeve 6 and a hole 4-3 of the expansion disc 4, so that the sealing plane of the bolt 7 is close to the outer plane of the bottom of the rubber sleeve 6. The screws 5 are respectively penetrated through the small holes 6-2 of the rubber sleeve 6 and the small holes 4-4 of the expansion disc 4 and are arranged in the small screw holes of the bolts 7 to be screwed tightly.
And fourthly, assembling the two assembled parts in the first step and the third step together, namely installing the nut 1 on the bolt 7 and properly screwing.
Working principle of (II) sealing plug
When the nut 1 is screwed, the axial distance between the nut 1 and the bolt 7 is shortened, so that the pressing plate 3 is pressed by the pressing plane 1-2 of the nut 1, and the pressing plate 3 is pushed to move towards the bottom of the expansion disc 4. Because from the opening to the bottom, the radial dimension of the expansion disc 4 gradually diminishes, and the expansion disc 4 is provided with a gap 4-2 with an opening starting from the upper edge, the opening of the expansion disc 4 can be ensured to be expanded to a larger dimension, so that when the pressure plate 3 moves towards the bottom of the expansion disc 4, the opening of the expansion disc 4 is forced to expand, the rubber sleeve 6 is expanded along with the expansion, and the elastic rubber sleeve 6 is pressed on the inner surface of the tubular part.
When the nut 1 is unscrewed, the axial distance between the nut 1 and the bolt 7 is increased, and the pressure plate 3 is clamped between the squeezing plane 1-2 and the elastic check ring 2, so the elastic check ring 2 in the annular clamping groove 1-3 can drive the pressure plate 3 to move outwards along the axis, the pressure plate 3 is separated from the expansion disc 4, the opening of the expansion disc 4 is contracted by virtue of the elasticity of the expansion disc 4, the rubber sleeve 6 is also contracted along with the contraction, and the whole sealing plug can be easily removed from the inner cavity of the tubular part at the moment.
Implementation of triple seal
1. The rubber sleeve 6 and the bolt 7 are sealed. After the screw 5 is screwed with the small screw hole of the bolt 7, the sealing plane of the bolt 7 is tightly attached to the bottom outer plane of the rubber sleeve 6, and the gap between the two parts is eliminated.
2. The rubber sleeve 6 is sealed with the inner surface of the tubular member. When the nut 1 is screwed, the extruding and pushing plane 1-2 of the nut 1 extrudes and pushes the pressure plate 3, the pressure plate 3 is pushed to move towards the bottom of the expansion disc 4, the opening part of the expansion disc 4 is expanded, the rubber sleeve 6 is forced to expand along with the expansion, the rubber sleeve 6 is tightly pressed on the inner surface of the tubular part, and the gap between the tubular part and the tubular part is eliminated.
Anti-oxidation and anti-corrosion treatment for tubular part inner cavity before four-sealing storage
The method comprises the steps of firstly wiping and maintaining the inner cavity of the metal tubular structural member, then drawing the anti-rust and anti-corrosion paper with a plurality of small bags of drying agents to a proper length, enabling the surface with the anti-rust and anti-corrosion powder to face the surface of the metal inner cavity, tightly pressing the anti-rust and anti-corrosion paper on the surface of the inner cavity of the tubular member by using a sealing plug at the opening part of the tubular member, and simultaneously sealing the inner cavity.
Five-opening tubular member inner cavity
And loosening the nut of the sealing plug, taking out the sealing plug, and pulling out the antirust and anticorrosive paper to finish unsealing the inner cavity of the tubular part.
The method can conveniently and efficiently perform anti-oxidation and anti-corrosion treatment on the inner cavity of the metal tubular structural member before sealing and storing, and reduce the consumption of manpower and material resources during unsealing. The protection and the removal of the protection are very convenient.
When the invention is used: the method comprises the steps of firstly wiping and maintaining the inner cavity of the metal tubular structural member, then drawing the anti-rust and anti-corrosion paper with a plurality of small bags of drying agents to a proper length, enabling the surface with the anti-rust and anti-corrosion powder to face the surface of the metal inner cavity, tightly pressing the anti-rust and anti-corrosion paper on the surface of the inner cavity of the tubular structural member by using a sealing plug at the opening part of the metal tubular structural member, and simultaneously sealing the inner cavity.
Claims (7)
1. An anti-oxidation and anti-rust device for an inner cavity of a metal tubular structural member is characterized by comprising a gas-phase anti-rust and anti-corrosion material A for eliminating or isolating oxides in a sealed inner cavity and a sealing plug for sealing the inner cavity of the metal tubular structural member; wherein, the sealing plug includes: the device comprises a nut (1), an elastic retainer ring (2), a pressure plate (3), an expansion plate (4), a screw (5), a rubber sleeve (6) and a bolt (7); the elastic retainer ring (2) is arranged on the nut (1), and the pressure plate (3) is sleeved on the nut (1) and clamped between the nut (1) and the elastic retainer ring (2); the rubber sleeve (6) is sleeved on the outer surface of the expansion disc (4), the bolt (7) penetrates through the rubber sleeve (6) and the expansion disc (4) and is close to the outer plane of the bottom of the rubber sleeve (6), the screw (5) sequentially penetrates through the expansion disc (4) and the rubber sleeve (6) and is installed on the bolt (7), and the nut (1) is installed on the bolt (7);
the nut (1) is a tubular structural part with internal threads, the internal hole of the nut is a screw hole (1-4), the screw hole (1-4) is matched with a bolt (7), and the nut (1) is screwed to push the pressing disc (3) to move in parallel in the axis direction of the nut (1); one end of the nut (1) is thick, the other end of the nut is thin, a squeezing plane (1-2) vertical to the axis of the screw hole (1-4) is formed at the junction of the thick end and the thin end, and when the nut (1) is screwed down, the squeezing plane (1-2) pushes the pressing disc (3) to enable the pressing disc to move in parallel along the axis direction; one end of the nut (1) which is thinner is designed with an annular clamping groove (1-3) for installing an elastic check ring (2); a shaft-shaped structural member with a smooth surface, namely a supporting shaft (1-5), is arranged between the extruding and pushing plane (1-2) and the annular clamping groove (1-3) and is used for supporting the pressing disc (3) during installation;
the elastic check ring (2) is an annular structural member with an opening (2-2), two sides of the opening (2-2) are designed to be in a lug shape (2-5), each lug (2-5) is provided with a first through hole (2-3), the elastic check ring (2) is arranged in the annular clamping groove (1-3), the diameter of an inner hole (2-4) of the elastic check ring (2) is smaller than that of the supporting shaft (1-5), the diameter of an outer edge (2-1) of the elastic check ring (2) is larger than that of the supporting shaft (1-5), and the pressure plate (3) is clamped between the extruding and pushing plane (1-2) and the elastic check ring (2);
the pressing plate (3) is a disc-shaped structural member with a second through hole (3-1) in the middle, the second through hole (3-1) is sleeved on a supporting shaft (1-5) of the nut (1), the pressing plate (3) is clamped between the extruding and pushing plane (1-2) and the elastic retainer ring (2), the bottom plane (3-2) of the pressing plate (3) is close to the extruding and pushing plane (1-2), and the inner plane (3-4) of the pressing plate (3) is close to the elastic retainer ring (2);
the expansion disc (4) is a bowl-shaped elastic chuck, a third through hole (4-3) is formed in the center of the bottom plane of the expansion disc, and a screw rod part of the bolt (7) passes through the third through hole (4-3); a plurality of first small holes (4-4) are annularly arranged around the third through hole (4-3), the first small holes (4-4) are through holes, and the screw rod part of the screw (5) penetrates through the first small holes; a plurality of gaps which are not communicated up and down are arranged on the periphery of the expansion disc (4), wherein the gap from the opening to the upper edge is a second gap (4-2), and the gap from the opening to the third through hole (4-3) is a first gap (4-1); the first gap (4-1) and the second gap (4-2) can ensure that the expansion disc (4) expands and contracts in a certain range;
the rubber sleeve (6) is a bowl-shaped rubber sleeve, a fourth through hole (6-3) is formed in the center of the bottom plane of the rubber sleeve, and a screw rod part of the bolt (7) passes through the fourth through hole (6-3); a plurality of second small holes (6-2) are annularly arranged around the fourth through hole (6-3), the second small holes (6-2) are through holes, and the screw rod part of the screw (5) penetrates through the second small holes when the screw is installed; the rubber sleeve (6) is sleeved on the outer surface of the expansion disc (4) by utilizing the elasticity of the rubber sleeve;
the bolt (7) is a flat-head screw-shaped structural member, and the head of the bolt is provided with a plurality of small penetrating screw holes which are annularly arranged and used for mounting the screw (5); the body axial surface of the bolt (7) forms threads, the threads are matched with the screw holes (1-4), the pressure plate (3) is extruded when the bolt is screwed down, the expansion disc (4) and the rubber sleeve (6) are expanded, the pressure plate (3) is pulled out of the expansion disc (4) through the annular clamping grooves (1-3) and the elastic retaining ring (2) in the nut (1) when the bolt is unscrewed, the expansion disc (4) and the rubber sleeve (6) are elastically contracted by self, and the outer edge size of the expansion disc (4) and the rubber sleeve (6) is reduced; the plane of the head of the bolt (7) close to one side of the thread is a sealing plane, and the sealing plane is close to the outer plane of the bottom of the rubber sleeve (6) during installation.
2. The anti-oxidation and anti-rust device for the inner cavity of the metal tubular structure according to claim 1, wherein the gas-phase anti-rust and anti-corrosion material A comprises an anti-rust and anti-corrosion material and a drying agent.
3. The device of claim 2, wherein the rust and corrosion preventing material comprises rust and corrosion preventing powder and its adhesive material.
4. The anti-oxidation and anti-rust device for the inner cavity of the metal tubular structure part according to claim 1 or 2, wherein the preparation method of the gas-phase anti-rust and anti-corrosion material A comprises the following steps:
dissolving the rust-proof and corrosion-proof powder in a solvent, absorbing the solvent on an adhesive material to prepare rust-proof and corrosion-proof paper, and fixing a small package of drying agent on the rust-proof and corrosion-proof paper to prepare the gas-phase rust-proof and corrosion-proof material A.
5. An anti-oxidation and anti-rust device for an inner cavity of a metal tubular structure according to claim 4, wherein the anti-rust and anti-corrosion paper is wound on a reel to form a plurality of layers of paper rolls to form an extensible roll of anti-rust and anti-corrosion paper.
6. The anti-oxidation and anti-rust device for the inner cavity of the metal tubular structural member according to claim 1, wherein the rubber sleeve (6) is provided with a plurality of strip-shaped protrusions (6-1) at the outer edge of the upper end, the inner cavity of the metal tubular structural member is provided with a spiral shallow groove, and the geometric dimension of the protrusions (6-1) is adapted to the geometric dimension of the spiral shallow groove arranged in the inner cavity of the metal tubular structural member;
the thicker end of the nut (1) is arranged in a multi-edge surrounding manner to form a screwing handle part (1-1) which is in a hexagonal shape or a square shape.
7. An application method of the anti-oxidation and anti-rust device for the inner cavity of the metal tubular structural part according to claim 1 is characterized by comprising the following specific steps: the method comprises the steps of cleaning and maintaining the inner cavity of the metal tubular structural member, drawing the anti-rust and anti-corrosion paper with a plurality of small bags of drying agents to a proper length, enabling the surface with the anti-rust and anti-corrosion powder to face the surface of the inner cavity of the metal tubular structural member, pressing the anti-rust and anti-corrosion paper on the surface of the inner cavity of the metal tubular structural member by using a sealing plug at the opening part of the metal tubular structural member, and sealing the inner cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910522221.8A CN110316469B (en) | 2019-06-17 | 2019-06-17 | Anti-oxidation and anti-rust device for inner cavity of metal tubular structural member |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910522221.8A CN110316469B (en) | 2019-06-17 | 2019-06-17 | Anti-oxidation and anti-rust device for inner cavity of metal tubular structural member |
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| CN110316469A CN110316469A (en) | 2019-10-11 |
| CN110316469B true CN110316469B (en) | 2020-09-01 |
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| CN110982384A (en) * | 2019-12-25 | 2020-04-10 | 常州佳尔科仿真器材有限公司 | Special gas-phase anticorrosive paint and preparation method thereof |
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|---|---|
| CN110316469A (en) | 2019-10-11 |
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