CN109339111B - Cast iron with anti-corrosion structure - Google Patents
Cast iron with anti-corrosion structure Download PDFInfo
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- CN109339111B CN109339111B CN201811072516.1A CN201811072516A CN109339111B CN 109339111 B CN109339111 B CN 109339111B CN 201811072516 A CN201811072516 A CN 201811072516A CN 109339111 B CN109339111 B CN 109339111B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/10—Electrodes characterised by the structure
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Abstract
The invention discloses cast iron with an anti-corrosion structure, which comprises a fixing frame and a cover body, wherein a cover groove is formed in the lower end face of the cover body, a sealing cover is arranged in the cover groove, the sealing cover is connected with the cover body through a sealing bolt, a plate groove is formed in the middle of the cover groove, support rod grooves are formed in the periphery of the plate groove, a sacrificial anode is arranged in the cover body and comprises a support rod and a plate body, the support rod is arranged in the periphery of the plate body, the plate body is matched with the plate groove, the support rod is matched with the support rod grooves, a fixing plate is arranged on the side wall of the plate groove, a fixing bolt is arranged at one end of the fixing plate, and the fixing bolt is connected with the plate body. The problem that the cast iron well lid is easy to rust is solved by arranging the sacrificial anode inside the well lid, the problem that the well lid is difficult to maintain is avoided, the maintenance cost is reduced, the protection effect is better by the sacrificial anode method, and the protection mode is more environment-friendly.
Description
Technical Field
The invention relates to the technical field of metal corrosion prevention, in particular to cast iron with an anti-corrosion structure.
Background
Cast iron is a generic term for alloys consisting mainly of iron, carbon and silicon. The iron product takes place the corruption very easily in long-term use, especially be applied to the cast iron metal parts in the humid environment, for example cast iron well lid, cast iron well lid is because in the use, be the humid environment for a long time in the well, so the corruption to the well lid is comparatively serious, current anticorrosive measure to cast iron well lid is, scribble the anticorrosive material of one deck on the surface of well lid, but because the upper surface of well lid receives the friction of outside things such as wheel for a long time, lead to anticorrosive material very easily by wearing and tearing off, will lead to the surface rust corrosion of cast iron well lid like this, the use of cast iron well lid will directly be influenced in long-term corrosion.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the cast iron with the anti-corrosion structure, the problem that the cast iron well lid is easy to rust is solved by arranging the sacrificial anode in the well lid, the problem that the well lid is difficult to maintain is avoided, the maintenance cost is reduced, the protection effect is better by the sacrificial anode method, and the protection mode is more environment-friendly; the sacrificial anode can be replaced and maintained through the sealing cover, and the use is more convenient.
In order to realize the purpose, the invention provides the following technical scheme:
the utility model provides a cast iron with anticorrosion structure, includes fixed frame, lid, the lower terminal surface of lid is equipped with the lid groove, be equipped with sealed lid in the lid groove, sealed lid with the lid passes through sealing bolt and connects, the middle part in lid groove is equipped with the board groove, be equipped with the strut groove around the board groove, be equipped with sacrificial anode in the lid, sacrificial anode includes branch, plate body, be equipped with branch around the plate body, plate body and board groove cooperation, branch with the cooperation of strut groove, be equipped with the fixed plate on the lateral wall in board groove, the one end of fixed plate is equipped with fixing bolt, fixing bolt is connected with the plate body.
Preferably, the lateral wall of plate body is equipped with the jack, branch and jack sliding fit, be equipped with spacing bolt on the plate body, the upper end in jack mouth is located to spacing bolt, the tip of branch is equipped with spacing hole, spacing bolt and spacing hole cooperation.
Preferably, the number of the struts is at least three.
Preferably, the middle part of the plate body is provided with a fixing hole, the middle part of the plate groove is provided with a fixing column, and the fixing column is matched with the fixing hole.
Preferably, the lateral wall of board groove is equipped with the groove of stepping down, the one end of fixed plate is located the inslot of stepping down, and the fixed plate rotates with the lid to be connected, the length in groove of stepping down is greater than the length of fixed plate.
Preferably, four sealing holes are uniformly formed in the cover groove and matched with the sealing bolts, and sealing rings are arranged on the periphery of the end face of the bottom of the cover groove.
Preferably, the plate body is a circular zinc plate, and the support plate is a zinc rod with a rod structure.
Preferably, the end part of the supporting rod groove is provided with a supporting rod hole, the end part of the supporting rod is matched with the supporting rod hole, the supporting rod is in clearance fit with the supporting rod groove, and the lower end surface of the supporting rod is connected with the bottom end surface of the supporting rod groove.
Preferably, the upper end face of the sealing cover is provided with four pressing strips, the four pressing strips are arranged along the circumference, the pressing strips are matched with the supporting rod groove, and the upper end face of each pressing strip is connected with the lower end face of the supporting rod.
Preferably, the upper end of fixed column is equipped with the external screw thread, be equipped with the locking cap on the fixed column, locking cap and fixed column screw-thread fit, locking cap and plate body are connected.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the cover groove is formed in the lower end surface of the cover body, the sealing cover is arranged in the cover groove, the sacrificial anode is arranged in the cover body, the problem that the cast iron well cover is easy to rust is solved by arranging the sacrificial anode in the well cover, the problem that the well cover is difficult to maintain is avoided, the maintenance cost is reduced, the protection effect is better by the sacrificial anode method, and the protection mode is more environment-friendly; the sacrificial anode can be replaced and maintained through the sealing cover, and the use is more convenient.
2. The periphery of the plate body is provided with the supporting rods, the plate body is matched with the plate groove, the supporting rods are matched with the supporting rod groove, the plate body is a main anticorrosion sacrificial main body and plays a main role in anticorrosion, and the supporting rods can fix the sacrificial anode, increase the contact area and range between the sacrificial anode and the cover body and improve the anticorrosion effect.
3. According to the invention, the side wall of the plate groove is provided with the abdicating groove, one end of the fixing plate is arranged in the abdicating groove, the fixing plate is rotatably connected with the cover body, and the abdicating groove is arranged, so that the fixing plate can be rotated into the abdicating groove for position abdicating when the sacrificial anode is installed, and the smooth installation is ensured.
4. The side wall of the plate body is provided with the insertion holes, the support rod is in sliding fit with the insertion holes, the support rod can be fixed in the insertion holes in the carrying process, transportation is facilitated, the convenience of transportation is improved, meanwhile, the support rod can be prevented from being bent in transportation, the plate body is provided with the limiting bolt, the limiting bolt can limit and fix the position of the support rod, and the use reliability is improved.
5. The middle part of the plate body is provided with the fixing hole, the middle part of the plate groove is provided with the fixing column, and the fixing column is matched with the fixing hole, so that the plate body can be prevented from shaking in the plate groove in use, the fixing firmness in use is ensured, the opening is prevented from being influenced by the shaking of the sacrificial anode when the well lid is opened, and the safety performance is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom view of the cover;
FIG. 3 is a schematic view of the inner structure of the cover;
FIG. 4 is a schematic view of the overall structure of a sacrificial anode;
fig. 5 is a schematic structural view of a plate body;
fig. 6 is a schematic view of a strut structure.
In the figure: 1-fixing frames; 2-a cover body; 201-cover groove; 202-sealing the hole; 203-strut groove; 204-plate groove; 205-fixed columns; 206-a yield slot; 3-sealing the cover; 301-sealing bolts; 4-a sacrificial anode; 401-a strut; 402-plate body; 403-limit bolt; 404-a fixation hole; 405-a jack; 406-a limiting hole; 5, fixing a plate; 501-fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, the first step is,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 passes through sealing bolt 301 to be connected, the middle part of lid groove 201 is equipped with board groove 204, be equipped with strut groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of strut groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
In the second embodiment, the first embodiment of the method,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 passes through sealing bolt 301 to be connected, the middle part of lid groove 201 is equipped with board groove 204, be equipped with strut groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of strut groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The lateral wall of plate body 402 is equipped with jack 405, branch 401 and jack 405 sliding fit, be equipped with stop bolt 403 on the plate body 402, stop bolt 403 locates the upper end of jack 405 mouth, the tip of branch 401 is equipped with spacing hole 406, stop bolt 403 and the cooperation of spacing hole 406.
The tip in branch pole groove 203 is equipped with the branch pole hole, the tip and the branch pole hole cooperation of branch pole 401, branch pole 401 and branch pole groove 203 clearance fit, and the lower terminal surface of branch pole 401 is connected with the bottom terminal surface in branch pole groove 203.
In the third embodiment, the first step is that,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 is connected through sealing bolt 301, the middle part of lid groove 201 is equipped with board groove 204, be equipped with pole groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around the plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of pole groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The number of the struts 401 is at least three.
In the fourth embodiment, the first step is that,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 is connected through sealing bolt 301, the middle part of lid groove 201 is equipped with board groove 204, be equipped with pole groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around the plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of pole groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The middle of the plate body 402 is provided with a fixing hole 404, the middle of the plate groove 204 is provided with a fixing column 205, and the fixing column 205 is matched with the fixing hole 404.
In the fifth embodiment, the first step is,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 passes through sealing bolt 301 to be connected, the middle part of lid groove 201 is equipped with board groove 204, be equipped with strut groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of strut groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The lateral wall of board groove 204 is equipped with the groove 206 of stepping down, in the groove 206 of stepping down was located to the one end of fixed plate 5, fixed plate 5 rotated with lid 2 and is connected, the length of the groove 206 of stepping down is greater than the length of fixed plate 5.
In the sixth embodiment, the process is carried out,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 is connected through sealing bolt 301, the middle part of lid groove 201 is equipped with board groove 204, be equipped with pole groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around the plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of pole groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
Four sealing holes 202 are uniformly formed in the cover groove 201, the sealing holes 202 are matched with the sealing bolts 301, and sealing rings are arranged on the periphery of the end face of the bottom of the cover groove 201.
In the seventh embodiment, the method comprises the following steps,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 passes through sealing bolt 301 to be connected, the middle part of lid groove 201 is equipped with board groove 204, be equipped with strut groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of strut groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The plate body 402 is a circular zinc plate, and the support plate 401 is a zinc rod with a rod structure.
In the eighth embodiment, the method comprises the following steps of,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 passes through sealing bolt 301 to be connected, the middle part of lid groove 201 is equipped with board groove 204, be equipped with strut groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of strut groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The upper end face of the sealing cover 3 is provided with four pressing strips, the four pressing strips are arranged along the circumference, the pressing strips are matched with the supporting rod groove 203, and the upper end face of each pressing strip is connected with the lower end face of the supporting rod 401.
In the ninth embodiment, the method of the present invention,
as shown in fig. 1 to 6, the cast iron with the anti-corrosion structure comprises a fixing frame 1 and a cover body 2, and is characterized in that: the lower terminal surface of lid 2 is equipped with lid groove 201, be equipped with sealed lid 3 in the lid groove 201, sealed lid 3 with lid 2 passes through sealing bolt 301 to be connected, the middle part of lid groove 201 is equipped with board groove 204, be equipped with strut groove 203 around the board groove 204, be equipped with sacrificial anode 4 in the lid 2, sacrificial anode 4 includes branch 401, plate body 402, be equipped with branch 401 around plate body 402, plate body 402 and board groove 204 cooperation, branch 401 with the cooperation of strut groove 203, be equipped with fixed plate 5 on the lateral wall of board groove 204, the one end of fixed plate 5 is equipped with fixing bolt 501, fixing bolt 501 is connected with plate body 402.
The upper end of fixed column 205 is equipped with the external screw thread, be equipped with the locking cap on the fixed column 205, locking cap and fixed column 205 screw-thread fit, the locking cap is connected with plate body 402.
When the sacrificial anode is used, firstly, the supporting rod 401 is drawn out of the inserting hole 405, then the supporting rod 401 is fixed through the limiting bolt 403, the sacrificial anode 4 is placed in the cover groove 201, the plate body 402 is matched with the plate groove 204, the supporting rod 401 is matched with the supporting rod groove 203, the fixing column 205 is matched with the fixing hole 404, then the fixing plate 5 is rotated, the fixing plate is fixed with the plate body 402 through the fixing bolt 501, and finally the sealing cover 3 is matched with the cover groove 201 and is connected and fixed through the sealing bolt 301. According to the invention, the cover groove 201 is formed in the lower end face of the cover body 2, the sealing cover 3 is arranged in the cover groove 201, the sacrificial anode 4 is arranged in the cover body 2, the problem that the cast iron well cover is easy to rust is solved by arranging the sacrificial anode 4 in the well cover, the problem that the well cover is difficult to maintain is avoided, the maintenance cost is reduced, the protection effect is better by the sacrificial anode method, and the protection mode is more environment-friendly; the sacrificial anode 4 can be replaced and maintained through the sealing cover 3, and the use is more convenient. The periphery of the plate body 402 is provided with the supporting rods 401, the plate body 402 is matched with the plate groove 204, the supporting rods 401 are matched with the supporting rod groove 203, the plate body 402 is a main anticorrosion sacrificial main body and plays a main role in anticorrosion, and the supporting rods 401 can play a role in fixing the sacrificial anode 4 on one hand and can increase the contact area and range between the sacrificial anode 4 and the cover body 2 on the other hand, so that the anticorrosion effect is improved. According to the invention, the side wall of the plate groove 204 is provided with the abdicating groove 206, one end of the fixing plate 5 is arranged in the abdicating groove 206, the fixing plate 5 is rotatably connected with the cover body 2, and the abdicating groove 206 is arranged, so that the fixing plate 5 can be rotated into the abdicating groove 206 for carrying out position abdicating when the sacrificial anode 4 is installed, and the smooth installation is ensured. The side wall of the plate body 402 is provided with the insertion hole 405, the support rod 401 is in sliding fit with the insertion hole 405, the support rod 401 can be fixed in the insertion hole 405 in the carrying process, transportation is facilitated, convenience in transportation is improved, meanwhile, the support rod 401 can be prevented from being bent in transportation, the plate body 402 is provided with the limiting bolt 403, the limiting bolt 403 can limit and fix the position of the support rod 401, and use reliability is improved. According to the invention, the fixing hole 404 is formed in the middle of the plate body 402, the fixing column 205 is formed in the middle of the plate groove 204, and the fixing column 205 is matched with the fixing hole 404, so that the plate body 402 can be prevented from shaking in the plate groove 204 in use, the firmness of fixing in use can be ensured, the opening is prevented from being influenced by the shaking of a sacrificial anode when a well lid is opened, and the safety performance is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The utility model provides a cast iron with anticorrosion structure, includes fixed frame (1), lid (2), its characterized in that: the lower end face of the cover body (2) is provided with a cover groove (201), a sealing cover (3) is arranged in the cover groove (201), the sealing cover (3) is connected with the cover body (2) through a sealing bolt (301), the middle of the cover groove (201) is provided with a plate groove (204), the periphery of the plate groove (204) is provided with a support rod groove (203), the cover body (2) is internally provided with a sacrificial anode (4), the sacrificial anode (4) comprises a support rod (401) and a plate body (402), the periphery of the plate body (402) is provided with the support rod (401), the plate body (402) is matched with the plate groove (204), the support rod (401) is matched with the support rod groove (203), the side wall of the plate groove (204) is provided with a fixing plate (5), one end of the fixing plate (5) is provided with a fixing bolt (501), and the fixing bolt (501) is connected with the plate body (402);
the side wall of the plate body (402) is provided with a jack (405), the support rod (401) is in sliding fit with the jack (405), the plate body (402) is provided with a limiting bolt (403), the limiting bolt (403) is arranged at the upper end of the jack (405), the end part of the support rod (401) is provided with a limiting hole (406), and the limiting bolt (403) is matched with the limiting hole (406); the number of the struts (401) is at least three;
a fixing hole (404) is formed in the middle of the plate body (402), a fixing column (205) is arranged in the middle of the plate groove (204), and the fixing column (205) is matched with the fixing hole (404);
the side wall of the plate groove (204) is provided with a yielding groove (206), one end of the fixing plate (5) is arranged in the yielding groove (206), the fixing plate (5) is rotatably connected with the cover body (2), and the length of the yielding groove (206) is greater than that of the fixing plate (5);
the upper end face of the sealing cover (3) is provided with four pressing strips, the four pressing strips are arranged along the circumference, the pressing strips are matched with the supporting rod groove (203), and the upper end face of each pressing strip is connected with the lower end face of the supporting rod (401);
the upper end of the fixed column (205) is provided with an external thread, the fixed column (205) is provided with a fixed cap, the fixed cap is in threaded fit with the fixed column (205), and the fixed cap is connected with the plate body (402).
2. The cast iron with corrosion protected construction according to claim 1, wherein: evenly be equipped with four sealed holes (202) in lid groove (201), sealed hole (202) and sealing bolt (301) cooperation, be equipped with the sealing washer around lid groove (201) bottom terminal surface.
3. The cast iron with corrosion protected construction according to claim 1, wherein: the plate body (402) is a circular zinc plate, and the support rod (401) is a zinc rod with a rod structure.
4. The cast iron with corrosion protected construction according to claim 1, wherein: the tip in branch pole groove (203) is equipped with a branch pole hole, the tip and the branch pole hole cooperation of branch pole (401), branch pole (401) and branch pole groove (203) clearance fit, and the lower terminal surface of branch pole (401) is connected with the bottom terminal surface in branch pole groove (203).
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| CN201811072516.1A CN109339111B (en) | 2018-09-14 | 2018-09-14 | Cast iron with anti-corrosion structure |
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| CN201811072516.1A CN109339111B (en) | 2018-09-14 | 2018-09-14 | Cast iron with anti-corrosion structure |
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| CN109339111B true CN109339111B (en) | 2022-09-23 |
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| CN115262648A (en) * | 2022-07-25 | 2022-11-01 | 中石化宁波工程有限公司 | Long-life steel inspection shaft lid |
| GB2624198A (en) * | 2022-11-09 | 2024-05-15 | Wrekin Holdings Ltd | Ground surface access assemblies |
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| CN1356437A (en) * | 2000-12-06 | 2002-07-03 | 唐其超 | Manhole cover and seat made of composition |
| CN2752328Y (en) * | 2004-04-21 | 2006-01-18 | 李德彦 | Airplane pressure resisting manhole cover |
| CN202081169U (en) * | 2011-04-29 | 2011-12-21 | 浙江龙驰防腐技术有限公司 | Anticorrosive structure for internal bottom plate of storage tank |
| KR20130078051A (en) * | 2011-12-30 | 2013-07-10 | 현대중공업 주식회사 | Structure for protecting spool on seabed |
| CN205100171U (en) * | 2015-10-28 | 2016-03-23 | 河南商禹机电设备制造有限公司 | Anodic protection cast iron gate |
| CN107354960A (en) * | 2017-08-01 | 2017-11-17 | 合肥威斯伏新材料有限公司 | A kind of outdoor column foot anti-corrosive apparatus |
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