CN215409660U - Rust-proof bolt for heating ventilation equipment - Google Patents
Rust-proof bolt for heating ventilation equipment Download PDFInfo
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- CN215409660U CN215409660U CN202121730054.5U CN202121730054U CN215409660U CN 215409660 U CN215409660 U CN 215409660U CN 202121730054 U CN202121730054 U CN 202121730054U CN 215409660 U CN215409660 U CN 215409660U
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Abstract
The utility model discloses an antirust bolt for heating ventilation equipment, which comprises a nut and a threaded rod, wherein the threaded rod is vertically arranged on the lower end surface of the nut, and the nut and the threaded rod are coaxial, and the antirust bolt is characterized in that: including rust-resistant pipe, first sealing washer, rust-resistant pipe, first sealing washer are all overlapped on the threaded rod, and first sealing washer is established in the below of rust-resistant pipe, rust-resistant pipe comprises first pipe, first ring, second sealing washer, oil absorption cotton, and the cover has coaxial first pipe on the threaded rod, and the first ring of two parallel symmetries is established respectively on first pipe upper end ring surface, lower extreme ring surface and first ring is coaxial with first pipe, and first ring cover is on the threaded rod. According to the utility model, the oil absorption cotton is soaked by the anti-rust oil, so that the anti-rust oil is gradually covered on the surface of the threaded rod by the oil absorption cotton when the threaded rod rotates, and the thread surface of the threaded rod is isolated from air and is not easy to rust.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of fasteners, in particular to the technical field of antirust bolts for heating and ventilation equipment.
[ background of the utility model ]
Bolt: the fastener consists of a head and a cylinder with a screw rod provided with external threads, and is matched with a nut and used for fastening and connecting two parts with through holes. The conventional bolt for the heating and ventilation equipment has poor antirust performance, is easy to rust and is not beneficial to fixing the connecting node of the heating and ventilation equipment, so that the bolt for the heating and ventilation equipment is necessary to be provided.
[ Utility model ] content
The utility model aims to solve the problems in the prior art and provides an antirust bolt for heating and ventilation equipment, which has good antirust performance and is difficult to rust.
In order to achieve the purpose, the utility model provides an antirust bolt for heating ventilation equipment, which comprises a nut and a threaded rod, wherein the threaded rod is vertically arranged on the lower end surface of the nut, and the nut and the threaded rod are coaxial, and the antirust bolt is characterized in that: including rust-resistant pipe, first sealing washer, rust-resistant pipe, first sealing washer are all overlapped on the threaded rod, and first sealing washer is established in the below of rust-resistant pipe, rust-resistant pipe comprises first pipe, first ring, second sealing washer, oil absorption cotton, and the cover has coaxial first pipe on the threaded rod, and the first ring of two parallel symmetries is established respectively on first pipe upper end ring surface, lower extreme ring surface and first ring is coaxial with first pipe, and first ring cover is on the threaded rod, is equipped with the second sealing washer between the interior pore wall of every first ring and the threaded rod, and the inner space packing between first pipe, two first rings and the threaded rod has the oil absorption cotton.
Preferably, the first sealing ring is composed of a second ring, a second circular tube, a first external thread and a first internal thread, the second circular tube is sleeved on the threaded rod, the second circular tube is coaxial with the threaded rod, the inner wall of the second circular tube is provided with the first internal thread, the first internal thread is matched with the external thread of the threaded rod, the lower end of the outer tube wall of the second circular tube is provided with the first external thread, the first external thread is matched with the external thread of the threaded rod, the major diameter of the first internal thread is slightly smaller than that of the threaded rod, the major diameter of the first external thread is slightly larger than that of the external thread of the threaded rod, and the uppermost end of the outer tube wall of the second circular tube is provided with the coaxial second ring.
Preferably, the second sealing ring is composed of a third circular tube, a third circular ring and a second internal thread, the third circular tube is arranged between the inner circular wall of the first circular ring and the threaded rod, the inner wall of the third circular tube is provided with a second internal thread matched with the external thread of the threaded rod, the major diameter of the second internal thread is slightly smaller than that of the external thread of the threaded rod, the outer diameter of the third circular tube is slightly larger than that of the first circular ring, the two third circular rings which are in parallel symmetry are respectively arranged on the circular ring surface at the upper end and the circular ring surface at the lower end of the third circular tube, the third circular ring is coaxial with the third circular tube, the two third circular rings clamp the first circular ring, and the outer diameter of the first circular ring is the same as that of the second circular ring.
Preferably, the oil absorption cotton is oil absorption cotton soaked by anti-rust oil.
The utility model has the beneficial effects that: according to the utility model, the oil absorption cotton is soaked by the anti-rust oil, so that the anti-rust oil is gradually covered on the surface of the threaded rod by the oil absorption cotton when the threaded rod rotates, and the thread surface of the threaded rod is isolated from air and is not easy to rust; the anti-rust oil is stored through the oil absorption cotton and matched with the second internal thread, so that the anti-rust oil is not easy to seep out from a gap between the anti-rust tube and the threaded rod, meanwhile, the second internal thread enhances the sealing property between the anti-rust tube and the threaded rod, when the bolt is installed in the through hole, air is not easy to enter from the through hole inlet and contact with the threaded rod, the first sealing ring is matched with the nut so that air is not easy to enter from the through hole outlet and contact with the threaded rod, the sealing property between the threaded rod and the through hole is enhanced, and the bolt is not easy to rust; when the bolt was installed in the blind hole, rust-resistant pipe, first sealing washer all were in the homonymy of blind hole, and first sealing washer, the common isolated air of second sealing washer make it be difficult for getting into from the entry of blind hole and contact with the threaded rod, have strengthened the leakproofness between threaded rod and the blind hole, make the difficult rust of bolt.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a front view of a rust-preventive bolt for an hvac apparatus according to the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the rust-proof bolt for heating ventilation equipment of the present invention includes a nut 1 and a threaded rod 2, the threaded rod 2 is vertically disposed on the lower end surface of the nut 1, and the nut 1 and the threaded rod 2 are coaxial, and is characterized in that: the anti-rust pipe 3 and the first sealing ring 4 are sleeved on the threaded rod 2, the first sealing ring 4 is arranged below the anti-rust pipe 3, the anti-rust pipe 3 consists of a first circular pipe 311, a first circular ring 312, a second sealing ring 32 and oil absorption cotton 33, the threaded rod 2 is sleeved with the coaxial first circular pipe 311, the two first circular rings 312 which are in parallel symmetry are respectively arranged on the circular ring surface at the upper end and the circular ring surface at the lower end of the first circular pipe 311, the first circular ring 312 is coaxial with the first circular pipe 311, the first circular ring 312 is sleeved on the threaded rod 2, the second sealing ring 32 is arranged between the inner hole wall of each first circular ring 312 and the threaded rod 2, the oil absorption cotton 33 is filled in the inner space between the first circular pipe 311, the two first circular rings 312 and the threaded rod 2, the first sealing ring 4 consists of a second circular ring 41, a second circular pipe 42, a first external thread 421 and a first internal thread 422, the second round tube 42 is sleeved on the threaded rod 2, the second round tube 42 is coaxial with the threaded rod 2, the inner tube wall of the second round tube 42 is provided with a first internal thread 422, the first internal thread 422 is matched with the external thread of the threaded rod 2, the lower end of the outer tube wall of the second round tube 42 is provided with a first external thread 421, the first external thread 421 is matched with the external thread of the threaded rod 2, the major diameter of the first internal thread 422 is slightly smaller than that of the threaded rod 2, the major diameter of the first external thread 421 is slightly larger than that of the external thread of the threaded rod 2, the uppermost end of the outer tube wall of the second round tube 42 is provided with a coaxial second ring 41, the second sealing ring 32 is composed of a third round tube 321, a third ring 322 and a second internal thread 323, the third round tube 321 is arranged between the inner ring wall of the first round tube 312 and the threaded rod 2, the inner wall of the third round tube 321 is provided with a second internal thread 323 matched with the external thread of the threaded rod 2, and the major diameter of the second internal thread 323 is slightly smaller than that of the external thread 2, the outer diameter of the third circular pipe 321 is slightly larger than the inner diameter of the first circular ring 312, the two third circular rings 322 which are parallel and symmetrical are respectively arranged on the circular ring surface at the upper end and the circular ring surface at the lower end of the third circular pipe 321, the third circular rings 322 are coaxial with the third circular pipe 321, the two third circular rings 322 clamp the first circular ring 312, the outer diameter of the first circular ring 312 is the same as that of the second circular ring 41, and the oil absorption cotton 33 is oil absorption cotton soaked by antirust oil.
The working process of the utility model is as follows:
the utility model discloses an antirust bolt for heating ventilation equipment, which has two working modes in the working process:
a first mode of operation; rust-resistant bolt is installed in the blind hole, and before the installation, rust-resistant pipe 3, first sealing washer 4 all are at threaded rod 2 bottom, and rust-resistant pipe 3, first sealing washer 4 all are in the homonymy of blind hole, and in rust-resistant bolt twisted the blind hole, accompany rust-resistant pipe 3, first sealing washer 4 between nut 1 and the blind hole entry.
A first mode of operation; the rust-resistant bolt is installed in the through-hole, and before the installation, rust-resistant pipe 3 is at threaded rod 2 lower extreme, and first sealing washer 4 takes off from threaded rod 2, and threaded rod 2 is rotatory after passing the through-hole, overlaps first sealing washer 4 on threaded rod 2 again, and first sealing washer 4 cooperatees with the nut, and the nut is twisted on first external screw thread 421 of first sealing washer 4 lower extreme.
According to the utility model, the oil absorption cotton 33 is soaked by the anti-rust oil, so that the anti-rust oil is gradually covered on the surface of the threaded rod 2 by the oil absorption cotton 33 when the threaded rod 2 rotates, and the thread surface of the threaded rod 2 is isolated from air and is not easy to rust; the anti-rust oil is stored through the oil absorption cotton 33 and matched with the second internal thread 323, so that the anti-rust oil is not easy to seep out from a gap between the anti-rust tube 3 and the threaded rod 2, meanwhile, the second internal thread 323 enhances the sealing performance between the anti-rust tube 3 and the threaded rod 2, when the bolt is installed in the through hole, air is not easy to enter from the inlet of the through hole and contact with the threaded rod 2, the first sealing ring 4 is matched with the nut so that air is not easy to enter from the outlet of the through hole and contact with the threaded rod 2, the sealing performance between the threaded rod 2 and the through hole is enhanced, and the bolt is not easy to rust; when the bolt was installed in the blind hole, rust-resistant pipe 3, first sealing washer 4 all were in the homonymy of blind hole, and first sealing washer 4, the common isolated air of second sealing washer 32 make it be difficult for getting into from the entry of blind hole with threaded rod 2 contact, have strengthened the leakproofness between threaded rod 2 and the blind hole, make the difficult rust of bolt.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (3)
1. The utility model provides an anti-rust bolt for heating ventilation equipment, contains nut (1), threaded rod (2), and threaded rod (2) are vertical establishes lower terminal surface and nut (1) of nut (1), threaded rod (2) coaxial, its characterized in that: comprises an antirust pipe (3) and a first sealing ring (4), wherein the antirust pipe (3) and the first sealing ring (4) are sleeved on a threaded rod (2), the first sealing ring (4) is arranged below the antirust pipe (3), antirust pipe (3) are by first pipe (311), first ring (312), second sealing washer (32), oil absorption is cotton (33) to be constituteed, the cover has coaxial first pipe (311) on threaded rod (2), establish respectively in first pipe (311) upper end anchor ring in first ring (312) of two parallel symmetries, on the lower extreme anchor ring and first ring (312) coaxial with first pipe (311), first ring (312) cover is on threaded rod (2), be equipped with second sealing washer (32) between the inner hole wall of every first ring (312) and threaded rod (2), first pipe (311), the inner space packing between two first ring (312) and threaded rod (2) has oil absorption cotton (33).
2. The rust-preventive bolt for an hvac apparatus according to claim 1, wherein: first sealing washer (4) comprise second ring (41), second pipe (42), first external screw thread (421), first internal thread (422), second pipe (42) cover on threaded rod (2) and second pipe (42) are coaxial with threaded rod (2), the interior pipe wall of second pipe (42) is equipped with first internal thread (422) and first internal thread (422) suit with the external screw thread of threaded rod (2), the outer pipe wall lower extreme of second pipe (42) is equipped with first external screw thread (421) and first external screw thread (421) suit with the external screw thread of threaded rod (2), first internal thread (422) major diameter slightly is less than threaded rod (2) major diameter, the major diameter of first external screw thread (421) slightly is greater than the major diameter of threaded rod (2) external screw thread, the outer pipe wall top of second pipe (42) is equipped with coaxial second ring (41).
3. The rust-preventive bolt for an hvac apparatus according to claim 1, wherein: second sealing washer (32) are established between first ring (312) inner ring wall and threaded rod (2) by third pipe (321), third ring (322), second internal thread (323) are constituteed, third pipe (321) are equipped with second internal thread (323) that suits with threaded rod (2) external screw thread and the major diameter of second internal thread (323) is slightly less than the major diameter of threaded rod (2) external screw thread, the external diameter of third pipe (321) slightly is greater than the internal diameter of first ring (312), establish respectively in third pipe (321) upper end anchor ring face, on the lower extreme anchor ring face and third ring (322) coaxial with third pipe (321), first ring (312) are cliied to two third ring (322), the external diameter of first ring (312) is the same with the external diameter of second ring (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121730054.5U CN215409660U (en) | 2021-07-28 | 2021-07-28 | Rust-proof bolt for heating ventilation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121730054.5U CN215409660U (en) | 2021-07-28 | 2021-07-28 | Rust-proof bolt for heating ventilation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215409660U true CN215409660U (en) | 2022-01-04 |
Family
ID=79653517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121730054.5U Active CN215409660U (en) | 2021-07-28 | 2021-07-28 | Rust-proof bolt for heating ventilation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215409660U (en) |
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2021
- 2021-07-28 CN CN202121730054.5U patent/CN215409660U/en active Active
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