CN111520393A - Rag bolt protector - Google Patents

Rag bolt protector Download PDF

Info

Publication number
CN111520393A
CN111520393A CN202010348701.XA CN202010348701A CN111520393A CN 111520393 A CN111520393 A CN 111520393A CN 202010348701 A CN202010348701 A CN 202010348701A CN 111520393 A CN111520393 A CN 111520393A
Authority
CN
China
Prior art keywords
sleeve
cover body
bolt
base
anchor bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010348701.XA
Other languages
Chinese (zh)
Inventor
陈奕戈
林杰欢
温振兴
张惠荣
朱锐锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority to CN202010348701.XA priority Critical patent/CN111520393A/en
Publication of CN111520393A publication Critical patent/CN111520393A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002Measures against loss of bolts, nuts or pins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00Features common to bolt and nut
    • F16B33/008Corrosion preventing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/001Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to the technical field of electric power facility protection and discloses a foundation bolt protection device. The foundation bolt protection device comprises a cover body, wherein one end face of the cover body is provided with a mounting hole, and a plurality of elastic clamping teeth are arranged on an orifice of the mounting hole along the circumferential direction of the orifice; the diameter of the root circle of elasticity joint tooth is the same with rag bolt's diameter, elasticity joint tooth can be towards the perpendicular to the direction of terminal surface is warp, so that the cover body presss from both sides tightly rag bolt and with rag bolt sealing connection. The elastic clamping teeth deform to be clamped and attached to the peripheral surface of the foundation bolt, on one hand, the cover body and the foundation bolt can be fixed relatively, and the structure is simple and the installation is convenient; on the other hand, under the elastic force effect of recovering the original position after the elastic clamping teeth are deformed, the connection surface of the cover body and the foundation bolt has better sealing performance. The foundation bolt protection device is simple in structure, convenient to install, good in sealing effect and good in protection effect.

Description

Rag bolt protector
Technical Field
The invention relates to the technical field of electric power facility protection devices, in particular to a foundation bolt protection device.
Background
At present, the foundation bolts of the iron tower foundation of the power transmission line are generally made of No. 35 carbon steel, and the installation and maintenance quality of the foundation bolts of the iron tower foundation plays a very important role in the normal operation of equipment and the safety of structures. However, the iron tower foundation is long in time interval from completion to tower erection, the bolt of the foundation bolt is long in air exposure time, and the foundation bolt is prone to rusting due to the influence of factors such as the material, the surrounding nature and the working environment.
In the prior art, in order to prevent an anchor bolt from being corroded in a natural environment, an anchor bolt protecting device generally comprises a cover body capable of covering the anchor bolt, and the cover body is generally fixed on the ground surface around the anchor bolt by bolts or other fasteners; on the other hand, the surrounding of the anchor bolt is usually a firm surface made of cement and the like, so that the fixing mode is not easy to install and the bolt is inconvenient to disassemble after being corroded, thereby reducing the construction efficiency.
Therefore, it is desirable to provide a ground bolt protecting device to solve the above problems.
Disclosure of Invention
The invention aims to provide a foundation bolt protective device which is simple in structure, convenient to install, good in sealing effect and good in protective effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ground bolt protecting device comprises a cover body, wherein one end face of the cover body is provided with a mounting hole, and a plurality of elastic clamping teeth are arranged on an orifice of the mounting hole along the circumferential direction of the orifice;
the diameter of the root circle of elasticity joint tooth is the same with rag bolt's diameter, elasticity joint tooth can be towards the perpendicular to the direction of terminal surface is warp, so that the cover body presss from both sides tightly rag bolt and with rag bolt sealing connection.
Optionally, in the radial direction of the mounting hole, the width of the elastic clamping tooth gradually decreases from the end connected with the mounting hole to the direction of the center of the mounting hole.
Optionally, the cover comprises:
the mounting hole and the elastic clamping tooth are arranged on the bottom surface of the base;
the sleeve is provided with an opening at one end, and the opening end of the sleeve is connected to the base;
the base with the sleeve lock forms and holds rag bolt's accommodation space.
Optionally, the base further includes a connecting portion, the connecting portion is perpendicular to the bottom surface of the base and is disposed at an outer edge of the base, and the connecting portion is detachably connected with the open end of the sleeve.
Optionally, the connecting portion and the sleeve are both cylindrical, one of the opening end of the connecting portion and the opening end of the sleeve is provided with an external thread, the other opening end of the connecting portion and the opening end of the sleeve is provided with an internal thread matched with the external thread, and the connecting portion is in threaded connection with the sleeve.
Optionally, the connecting portion is provided with an internal thread, the open end of the sleeve is provided with an external thread, and a sealing ring is clamped between the sleeve and the bottom surface of the base.
Optionally, an anticorrosion medium is arranged between the foundation bolt and the cover body sleeved on the foundation bolt.
Optionally, an oil filling hole is formed in the cover body and used for filling the corrosion-resistant medium into the closed space.
Optionally, an oil filling hole is formed in the cover body and used for filling the anticorrosion medium into the space between the foundation bolt and the cover body sleeved on the foundation bolt.
Optionally, the base and/or the sleeve are made of plastic.
The invention has the beneficial effects that:
according to the foundation bolt protection device, the end face of the cover body is provided with the mounting hole, when the foundation bolt protection device is installed, the mounting hole of the cover body is aligned with the foundation bolt and downwards sleeved, at the moment, a plurality of elastic clamping teeth in the circumferential direction of the hole opening of the mounting hole are pushed by the foundation bolt to elastically deform and avoid in the direction perpendicular to the end face of the cover body, and finally the end face of the mounting hole arranged on the cover body is attached to the mounting plane of the foundation bolt, so that the part of the foundation bolt leaked from the mounting plane is completely accommodated in the cover body, and the foundation bolt is protected; the elastic clamping teeth are finally deformed to be perpendicular to the end face, namely, parallel to the axis direction of the foundation bolt, the elastic clamping teeth are attached to the peripheral face of the foundation bolt, and the peripheral face of the foundation bolt is pressed under the action of the elastic force of the elastic clamping teeth restoring to the original positions, so that the cover body and the foundation bolt are relatively fixed, other fastening structures are not needed to be arranged to fix the cover body on the installation plane of the foundation bolt, and the structure is simple and convenient to install; in addition, and the root department of elasticity joint tooth this moment and the global butt completely of rag bolt to realize the cover body and rag bolt sealing connection, in order to block that material that outside water or air etc. can lead to the rag bolt corruption from here entering the closed accommodation space that the cover body holds rag bolt, thereby improve rag bolt protector's protecting effect. The foundation bolt protection device is simple in structure, convenient to install, good in sealing effect and good in protection effect.
Drawings
FIG. 1 is a schematic structural view of an anchor bolt guard according to an embodiment of the present invention;
FIG. 2 is a sectional view A-A of FIG. 1;
fig. 3 is a top view of a base provided in accordance with an embodiment of the present invention.
In the figure:
1-a cover body; 11-a base; 111-mounting holes; 112-elastic snap-fit teeth; 113-a bottom surface; 114-a connecting portion; 12-a sleeve;
2-an antiseptic medium;
3-blocking;
4-sealing ring;
5-foundation bolts;
6-foundation bolt installation plane.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the prior art, in the field of electric power design of power transmission line iron towers and the like, a protection device of an anchor bolt 5 is usually fixed on an anchor bolt mounting plane 6 through a fastener, and on one hand, the mode is inconvenient to mount and dismount; on the other hand, the sealing effect is poor, so that the protection effect of the whole protection device is influenced.
To above-mentioned problem, this embodiment provides a rag bolt protector, and it can be used to electric power facility protection technical field, also can be used to other fields that need protect rag bolt 5 such as engineering machine tool. As shown in fig. 1 to 3, the anchor bolt protecting device includes a cover 1, a mounting hole 111 is provided on one end surface of the cover 1, and a plurality of elastic snap-in teeth 112 are provided on an opening of the mounting hole 111 along a circumferential direction thereof; the anchor bolt 5 is located to mounting hole 111 cover, makes anchor bolt 5 hold in the accommodation space that the cover body 1 formed, and elasticity joint tooth 112 warp towards the direction of keeping away from the mounting hole 111 center and compress tightly in anchor bolt 5 global.
When the foundation bolt protection device is installed, the installation hole 111 of the cover body 1 is aligned to the foundation bolt 5 and sleeved towards the direction close to the foundation bolt installation plane 6, at the moment, a plurality of elastic clamping teeth 112 in the circumferential direction of the hole opening of the installation hole 111 are pushed by the foundation bolt 5 to elastically deform towards the position far away from the center of the installation hole 111 so as to avoid, and finally the surface of the cover body 1 provided with the installation hole 111 is attached to the installation plane of the foundation bolt 5, so that the part of the foundation bolt 5 which leaks out of the installation plane is completely accommodated in the closed space formed by the cover body 1, and the foundation bolt 5 is protected; the elastic clamping teeth 112 are finally deformed to be perpendicular to the end face, namely, parallel to the axis direction of the foundation bolt 5, the elastic clamping teeth 112 are attached to the peripheral face of the foundation bolt 5, and the peripheral face of the foundation bolt 5 is pressed under the action of the elastic force of the elastic clamping teeth 112 restoring the original position, so that the cover body 1 and the foundation bolt 5 are relatively fixed, other fastening structures are not needed to be arranged to fix the cover body 1 on the installation plane of the foundation bolt 5, and the structure is simple and convenient to install; in addition, and the root department of elasticity joint tooth 112 and the global butt of rag bolt 5 this moment to realize the cover body 1 and rag bolt 5 sealing connection, in order to block that material that outside water or air etc. can lead to the erosion of rag bolt 5 gets into the closed accommodation space that cover body 1 holds rag bolt 5 from here, thereby improve rag bolt 5 protector's protective effect. The foundation bolt 5 protection device is simple in structure, convenient to install, good in sealing effect and good in protection effect. Specifically, in the present embodiment, cover 1 has a thin-walled structure having a cylindrical structure, and mounting hole 111 is provided at the center of one end face of cover 1. The size of the mounting hole 111 and the size of the cover 1 may be set according to the size of the anchor bolt 5 to be protected as required.
Specifically, as shown in fig. 1 and 2, the cover body 1 includes a base 11 and a sleeve 12, a mounting hole 111 and an elastic fastening tooth 112 are disposed on a bottom surface 113 of the base 11, one end of the sleeve 12 is open, the open end of the sleeve 12 is connected to the base 11, and the base 11 is fastened to the sleeve 12 to form a receiving space for receiving the anchor bolt 5. Base 11 and sleeve 12 separately set up the processing of being convenient for, when in actual use, can connect base 11 and sleeve 12 earlier, overlap together again and establish and fix on rag bolt 5, the operation installation of being convenient for. Particularly, in this embodiment, base 11 and sleeve 12 all are cylindricly, unanimous with rag bolt 5 shape, are convenient for rationally set up the size. Preferably, the base 11 and the sleeve 12 are both made of plastic. The plastic material has low cost, and is convenient to disassemble and assemble and replace; in addition, the plastic has certain elasticity, so the elastic clamping teeth 112 and the base 11 can be integrally formed, and the processing is convenient.
Preferably, as shown in fig. 3, the width of the elastic snap tooth 112 gradually decreases from the end connected with the mounting hole 111 to the center of the mounting hole 111 along the radial direction of the mounting hole 111. The width of the end of the elastic clamping tooth 112 close to the center of the mounting hole 111 is smaller, so that the resistance of the cover body 1 just contacting with the foundation bolt 5 is smaller, the installation is convenient, and the end connected with the opening of the mounting hole 111 is wider, so that the elastic clamping tooth 112 is ensured to have enough elastic abutting force, the gap between the cover body 1 and the foundation bolt 5 can be completely sealed, and the sealing effect is improved. Specifically, in this embodiment, the elastic fastening teeth 112 are uniformly distributed along the circumferential direction of the mounting hole 111, so that the abutting pressure of the elastic fastening teeth 112 on the anchor bolt 5 is ensured to be more balanced, a gap is not leaked in a certain direction, and a good sealing property between the cover body 1 and the anchor bolt 5 is further ensured.
To facilitate the connection between the base 11 and the sleeve 12, as shown in fig. 1-3, the base 11 further includes a connecting portion 114, the connecting portion 114 is perpendicular to the bottom surface 113 of the base 11 and is disposed at the outer edge of the base 11, and the connecting portion 114 is detachably connected to the open end of the sleeve 12. The curved surface formed by the connecting part 114 vertical to the bottom surface 113 of the base 11 and the curved surface formed by the outer wall of the sleeve 12 are in concentric cylindrical surfaces, thereby facilitating the installation of the two. In this embodiment, the connecting portion 114, the bottom surface 113, and the elastic engaging teeth 112 of the base 11 are integrally formed.
Specifically, the connecting portion 114 and the sleeve 12 are each cylindrical, one of the open ends of the connecting portion 114 and the sleeve 12 is provided with an external thread, the other is provided with an internal thread matching the external thread, and the connecting portion 114 is screwed to the sleeve 12. The two can be screwed up and connected directly through the screw thread without other auxiliary tools, the operation is convenient and the construction efficiency is improved; in addition, threaded connection's sealed effect is relatively better, can block that substances such as outside air and water easily cause the corrosion of rag bolt 5 get into the accommodation space that the cover body 1 formed to improve rag bolt protector's protecting effect. In other embodiments, the connecting portion 114 and the open end of the sleeve 12 may be a snap-fit connection or other convenient connection.
Preferably, as shown in fig. 2, the connecting portion 114 is provided with an internal thread, the open end of the sleeve 12 is provided with an external thread, and the sealing ring 4 is interposed between the sleeve 12 and the bottom surface 113 of the base 11. The tightening of the sleeve 12 onto the base 11 presses the sealing ring 4 on the bottom surface 113 of the base 11, further improving the sealing performance of the connection between the base 11 and the sleeve 12, and thus improving the sealing effect.
In order to further improve the protection effect of the anchor bolt protection device, as shown in fig. 2, an anticorrosion medium 2 is provided between the anchor bolt 5 and the cover body 1 sleeved thereon. Anticorrosive medium 2 can be full of the space filling between the cover body 1 and rag bolt 5 to prevent the air and the moisture that exist in the accommodation space itself to rag bolt 5's corruption, thereby further improve rag bolt protector's protecting effect. Specifically, in this embodiment, the corrosion-resistant medium 2 may be a solid medium such as grease, which is not easy to flow out from the gap, and the protection is more durable.
Preferably, the cover body 1 is provided with an oil filling hole, and the oil filling hole is used for filling the anticorrosion medium 2 between the foundation bolt 5 and the cover body 1 sleeved on the foundation bolt. Set up the oil filler point on the cover body 1, so can install the cover body 1 on rag bolt 5 back again to the cover body 1 and the space injection anticorrosive medium 2 between rag bolt 5, guarantee that anticorrosive medium 2 evenly fills in accommodation space, it is more convenient to operate. Further preferably, the foundation bolt protection device further comprises a plugging plug 3, and the plugging plug 3 is used for plugging the oil filling hole. After the oil filler point is plugged by the plugging plug 3, the loss or evaporation of the anticorrosive medium 2 from the oil filler point can be avoided, and the protection effect of the anticorrosive medium 2 is ensured. Specifically, in the present embodiment, the oil injection hole is provided on the end surface of the sleeve 12, which facilitates the flow of the corrosion preventing medium 2 into the entire accommodation space. Of course, in other embodiments, the oil injection hole may be provided on the sidewall of the sleeve 12, or the oil injection hole may not be provided on the cover body 1, and the volume of the corrosion-resistant medium 2 required by the accommodating space may be calculated in advance, and the corresponding volume of the corrosion-resistant medium 2 may be filled in the sleeve 12 in advance.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not to be construed as limitations of the embodiments of the present invention, but may be modified in various embodiments and applications by those skilled in the art according to the spirit of the present invention, and the content of the present description should not be construed as a limitation of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The rag bolt protector is characterized by comprising a cover body (1), wherein one end face of the cover body (1) is provided with a mounting hole (111), and a plurality of elastic clamping teeth (112) are arranged on an orifice of the mounting hole (111) along the circumferential direction of the orifice;
the diameter of the root circle of elasticity joint tooth (112) is the same with rag bolt (5) diameter, elasticity joint tooth (112) can be towards the perpendicular to the direction of terminal surface is out of shape, so that the cover body (1) presss from both sides tightly rag bolt (5) and with rag bolt (5) sealing connection.
2. An anchor bolt guard according to claim 1, wherein the resilient snap tooth (112) has a width gradually decreasing from an end connected to the mounting hole (111) toward a center of the mounting hole (111) in a radial direction of the mounting hole (111).
3. An anchor bolt guard according to claim 1 or 2, characterised in that the cover (1) comprises:
the base (11), the mounting hole (111) and the elastic clamping tooth (112) are arranged on the bottom surface (113) of the base (11);
a sleeve (12) having an open end, the open end of the sleeve (12) being connected to the base (11);
the base (11) and the sleeve (12) are buckled to form an accommodating space for accommodating the foundation bolt (5).
4. An anchor bolt guard according to claim 3, characterised in that the base (11) further comprises a coupling portion (114), the coupling portion (114) being perpendicular to the bottom surface (113) of the base (11) and being disposed at an outer edge of the base (11), the coupling portion (114) being detachably connected to the open end of the sleeve (12).
5. An anchor bolt guard according to claim 4 characterised in that the coupling portion (114) and the sleeve (12) are each cylindrical, one of the coupling portion (114) and the open end of the sleeve (12) being provided with external screw thread and the other being provided with internal screw thread which mates with the external screw thread, the coupling portion (114) being threadedly connected to the sleeve (12).
6. An anchor bolt guard according to claim 4, characterised in that the attachment portion (114) is internally threaded, the open end of the sleeve (12) is externally threaded, and a sealing ring (4) is interposed between the sleeve (12) and the bottom surface (113) of the base (11).
7. An anchor bolt guard according to claim 1 or 2, characterized in that an anti-corrosive medium (2) is arranged between the anchor bolt (5) and the cover (1) placed over it.
8. An anchor bolt protecting device according to claim 7, characterized in that an oil filling hole is provided in the cover body (1) for filling the corrosion preventing medium (2) between the anchor bolt (5) and the cover body (1) fitted over it.
9. An anchor bolt guard according to claim 8, characterised in that the anchor bolt guard further comprises a plug (3), the plug (3) being arranged to plug the oil filler hole.
10. An anchor bolt guard according to claim 3 characterised in that the base (11) and/or the sleeve (12) is of plastics material.
CN202010348701.XA 2020-04-28 2020-04-28 Rag bolt protector Pending CN111520393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010348701.XA CN111520393A (en) 2020-04-28 2020-04-28 Rag bolt protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010348701.XA CN111520393A (en) 2020-04-28 2020-04-28 Rag bolt protector

Publications (1)

Publication Number Publication Date
CN111520393A true CN111520393A (en) 2020-08-11

Family

ID=71906043

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010348701.XA Pending CN111520393A (en) 2020-04-28 2020-04-28 Rag bolt protector

Country Status (1)

Country Link
CN (1) CN111520393A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112196126A (en) * 2020-09-07 2021-01-08 中铁第四勘察设计院集团有限公司 Protective structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11230145A (en) * 1998-02-20 1999-08-27 Nifco Inc Fastener of turning movement member
US20050220567A1 (en) * 2004-03-17 2005-10-06 Alexander Winker Fastening element, washer and fastening means therefrom
CN201390218Y (en) * 2009-03-20 2010-01-27 汪海世 License plate burglarproof fastener
CN202733346U (en) * 2012-07-13 2013-02-13 吉林省电力有限公司松原供电公司 Foundation bolt assembly
CN210106358U (en) * 2019-04-28 2020-02-21 无锡市第二标准件制造有限公司 Rag bolt subassembly with anticorrosive function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11230145A (en) * 1998-02-20 1999-08-27 Nifco Inc Fastener of turning movement member
US20050220567A1 (en) * 2004-03-17 2005-10-06 Alexander Winker Fastening element, washer and fastening means therefrom
CN201390218Y (en) * 2009-03-20 2010-01-27 汪海世 License plate burglarproof fastener
CN202733346U (en) * 2012-07-13 2013-02-13 吉林省电力有限公司松原供电公司 Foundation bolt assembly
CN210106358U (en) * 2019-04-28 2020-02-21 无锡市第二标准件制造有限公司 Rag bolt subassembly with anticorrosive function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112196126A (en) * 2020-09-07 2021-01-08 中铁第四勘察设计院集团有限公司 Protective structure

Similar Documents

Publication Publication Date Title
KR950013922A (en) Screw joints in openings of laminated working fluid tank
CN111520393A (en) Rag bolt protector
CN207116660U (en) Antenna line outlet waterproof sealing structure
CN205544147U (en) Sea cable fixing device with sealed and interim clamping action
CN216530368U (en) Cable protection pipe with good corrosion resistance
CN211648449U (en) High-efficient scale control device of oily charge pump of diving
CN112009895B (en) High-temperature anti-corrosion storage tank
CN210196584U (en) Check valve with good corrosion resistance
CN212510004U (en) Anti-rotation polytetrafluoroethylene connecting pipeline
CN215257257U (en) Bolt with nut insulating mechanism for electric appliance
CN214996744U (en) High leakproofness have shock-resistant structure's taut lock
KR100951373B1 (en) Protective cover assembly for offshore structure and installing method for the same
CN217208200U (en) Antiskid clamp convenient to disassemble and assemble
CN218582617U (en) Pipeline protection shell with anticorrosion and heat preservation effects
CN213511616U (en) Anti-loosening corrosion-resistant screw
CN210686587U (en) Flat plate type base plate for bolt corrosion-proof protection device
CN220396217U (en) Bolt protection device capable of preventing corrosion and falling off
CN220956390U (en) Flange connection structure
CN220622420U (en) Steel construction building seals anticorrosive bolt
CN210290430U (en) Novel screw
CN220325255U (en) Lightning arrester base with anti-bird baffle
KR102234479B1 (en) Combination structure of apparatus to prevent corrosion of heat exchanger
CN216715342U (en) External anticorrosive device that shelters from of valve flange
CN213039342U (en) Valve oil seal
CN212407268U (en) Novel bolt corrosion prevention device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200811

RJ01 Rejection of invention patent application after publication