CN111963540B - Self-adjusting pressure relief type bolt structure - Google Patents
Self-adjusting pressure relief type bolt structure Download PDFInfo
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- CN111963540B CN111963540B CN202010704217.6A CN202010704217A CN111963540B CN 111963540 B CN111963540 B CN 111963540B CN 202010704217 A CN202010704217 A CN 202010704217A CN 111963540 B CN111963540 B CN 111963540B
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- bolt
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000004429 Calibre Substances 0.000 abstract description 11
- 238000010030 laminating Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/04—Arrangements for preventing erosion, not otherwise provided for
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a self-regulating pressure relief type bolt structure which comprises a main bolt, wherein the middle part of the main bolt is provided with an accommodating cavity penetrating through a rod body of the main bolt, the accommodating cavity comprises a small-caliber channel communicated from top to bottom, a reducing communicating channel of a horn-shaped structure, a large-caliber channel and a fastening groove, the large-caliber channel is upwards provided with a pressure relief groove extending outwards; be provided with the briquetting in reducing intercommunication passageway, be provided with the bolster in the heavy-calibre passageway of briquetting top, be provided with fastening bolt at the top of bolster, fastening bolt's screw rod diameter is less than the diameter of heavy-calibre passageway, fastening bolt's screw rod extends to in the heavy-calibre passageway and fixed with the top of bolster, a plurality of pressure release hole has been seted up on fastening bolt's that the heavy-calibre passageway corresponds nut, and fastening bolt's nut outside is formed with the external screw thread and passes through nut and fastening groove threaded connection. The invention can automatically discharge the pressure in the closed space, thereby ensuring the safe use of the closed space.
Description
Technical Field
The invention relates to a self-adjusting pressure relief type bolt structure, and belongs to the field of bolts.
Background
On some production equipment, bolts are often used for connecting fasteners, some closed spaces are not used as pressure vessels and cannot generate pollution sources of waste gas, the pressure is often ignored, a pressure relief protection device is not adopted, but some inevitable accidents are often caused, and the invention provides a self-regulating pressure relief type bolt structure in order to solve the defects of the prior art.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the self-regulating pressure relief type bolt structure which can effectively relieve the pressure in the space, improves the safety performance, and has simple structure and low cost.
The technical scheme adopted by the invention is as follows:
a self-adjusting pressure relief type bolt structure comprises a main bolt, wherein an accommodating cavity penetrating through a main bolt body is formed in the middle of the main bolt, the accommodating cavity comprises a small-caliber channel communicated from top to bottom, a large-opening horn-shaped structure different-diameter communicating channel arranged upwards, a large-caliber channel and a fastening groove, the diameter of the small-caliber channel is equal to that of a small opening end of the horn-shaped structure different-diameter communicating channel, the diameter of the large opening end of the different-diameter communicating channel is equal to that of the large-caliber channel, the diameter of the fastening groove is larger than that of the large-caliber channel, an internal thread is formed on the inner wall of the fastening groove, and a pressure relief groove extending outwards is formed in the large-caliber channel; be provided with the briquetting in reducing intercommunication passageway, the laminating of briquetting and reducing intercommunication passageway inner wall, and the bottom of briquetting is formed with and contracts with reducing intercommunication passageway and extend to the arch in the small-bore passageway, be provided with the bolster in the heavy-calibre passageway of briquetting top, be provided with fastening bolt at the top of bolster, fastening bolt's screw rod diameter is less than the diameter of large-bore passageway, fastening bolt's screw rod extends to in the large-bore passageway and is fixed with the top of bolster, a plurality of pressure release hole has been seted up on fastening bolt's that the large-bore passageway corresponds nut, and fastening bolt's nut outside is formed with the external screw thread and passes through nut and fastening groove threaded connection.
Preferably, the bolster includes the fixed plate and sets up the flexible loop bar in the fixed plate bottom, and flexible loop bar includes sleeve pipe and carriage release lever, and the intraductal spring that is provided with of sleeve, the top setting of carriage release lever are provided with the stopper at the top of carriage release lever in the sleeve pipe.
Further preferably, a pressing plate is further disposed at the bottom end of the moving rod.
Further preferably, a compression spring is further sleeved outside the sleeve and the movable rod.
Further preferably, the top of the fixing plate is provided with a connecting column, external threads are formed outside the connecting column, a notch corresponding to the connecting column is formed in the top of the stud of the fastening bolt, internal threads are arranged in the notch, and the fastening bolt is fixed with the buffer piece through threaded connection of the notch and the connecting column.
Further preferably, a rotation assisting notch is provided at a top center position of the fastening bolt.
Further preferably, the surface of the compact is coated with a corrosion-resistant coating.
Preferably, the bottom of the screw rod of the main bolt is obliquely and upwards provided with a plurality of auxiliary pressure relief channels communicated with the reducing communication channel.
Preferably, the fixing plate is also provided with a plurality of pressure relief through holes.
The invention has the beneficial effects that:
pressure acts on the briquetting through small-bore passageway and supplementary pressure release channel, the briquetting is rebound and to propping the clamp plate and extrude under the pressure effect, it extrudees pressure spring and carriage release lever to support the clamp plate and makes the briquetting can continue the lifting under the pressure effect, after the bottom of briquetting breaks away from the laminating with reducing communicating channel, pressure lets out the pressure release groove that gets into in the heavy-calibre passageway through the gap between briquetting and the reducing communicating channel, and finally lets out through the pressure release hole, then can effectually keep the pressure in the airtight space.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a telescoping tube;
the main reference numerals in the figures have the following meanings:
1. the main bolt, 2, the holding chamber, 3, the briquetting, 4, the bolster, 5, fastening bolt, 6, supplementary pressure release passageway, 21, small-bore passageway, 22, reducing intercommunication passageway, 23, heavy-calibre passageway, 24, fastening groove, 25, pressure release groove, 41, the fixed plate, 42, flexible loop bar, 43, the sleeve pipe, 44, the carriage release lever, 45, the spring, 46, the stopper, 47, the board that supports, 48, the pressure spring, 49, the spliced pole, 410, the pressure release through-hole, 51, the pressure release hole, 52, help and revolve the notch.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-2: the embodiment is a self-adjusting pressure relief type bolt structure, which comprises a main bolt 1, wherein the middle part of the main bolt 1 is provided with an accommodating cavity 2 penetrating through the rod body of the main bolt 1, the accommodating cavity 2 comprises a small-caliber channel 21 communicated from top to bottom, a horn-shaped-structure reducing communicating channel 22 arranged upwards from a large opening, a large-caliber channel 23 and a fastening groove 24, the diameter of the small-caliber channel 21 is equal to that of the small opening end of the horn-shaped-structure reducing communicating channel 22, the diameter of the large opening end of the reducing communicating channel 22 is equal to that of the large-caliber channel 23, the diameter of the fastening groove 24 is larger than that of the large-caliber channel 23, an internal thread is formed on the inner wall of the fastening groove 24, and the large-caliber channel 23 is internally provided with a pressure relief groove 25 extending outwards; be provided with briquetting 3 in reducing intercommunication passageway 22, briquetting 23 and the laminating of reducing intercommunication passageway 22 inner wall, and the bottom of briquetting 3 is formed with and cooperates and extend to the arch in the small-bore passageway 21 with reducing intercommunication passageway 22, be provided with bolster 4 in the heavy-calibre passageway 23 of briquetting 3 top, top at bolster 4 is provided with fastening bolt 5, fastening bolt 5's screw rod diameter is less than the diameter of heavy-calibre passageway 23, fastening bolt 5's screw rod extends to in the heavy-calibre passageway 23 and is fixed with the top of bolster 4, a plurality of pressure release hole 51 has been seted up on fastening bolt 5's that heavy-calibre passageway 23 corresponds nut, and fastening bolt 5's nut outside is formed with the external screw thread and passes through nut and fastening groove 24 threaded connection.
The buffer member 4 comprises a fixed plate 41 and a telescopic sleeve rod 42 arranged at the bottom of the fixed plate 41, the telescopic sleeve rod 42 comprises a sleeve 43 and a moving rod 44, a spring 45 is arranged in the sleeve 43, the top of the moving rod 44 is arranged in the sleeve 43, and a limit block 46 is arranged at the top of the moving rod 44.
A pressing plate 47 is also provided at the bottom end of the moving bar 44.
A compression spring 48 is also sleeved outside the sleeve 43 and the moving rod 44.
A connecting column 49 is arranged at the top of the fixing plate 41, an external thread is formed outside the connecting column 49, a notch corresponding to the connecting column 49 is formed in the top of the stud of the fastening bolt 5, an internal thread is arranged in the notch, and the fastening bolt 5 is fixed with the buffer piece 4 through the threaded connection between the notch and the connecting column 49.
A rotation assisting notch 52 is provided at the top center position of the fastening bolt 5.
The surface of the compact 3 is coated with a corrosion-resistant coating.
And a plurality of auxiliary pressure relief channels 6 communicated with the reducing communication channel 22 are obliquely and upwards arranged at the bottom of the screw rod of the main bolt 1.
The fixing plate 41 is also provided with a plurality of pressure relief through holes 410.
In practical application, pressure acts on the press block 3 through the small-caliber passage 21 and the auxiliary pressure relief passage 6, the press block 3 moves upwards under the action of the pressure and extrudes the abutting plate 47, the abutting plate 47 extrudes the pressure spring 48 and the moving rod 44 to enable the press block 3 to be continuously lifted under the action of the pressure, and after the bottom of the press block 3 is separated from the fit with the different-caliber communicating passage 22, the pressure is released into the pressure relief groove 25 in the large-caliber passage 23 through a gap between the press block 3 and the different-caliber communicating passage 22 and finally released through the pressure relief hole 51, so that the pressure in a closed space can be effectively maintained.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (8)
1. The utility model provides a self-modulation pressure release formula bolt structure which characterized in that: the main bolt comprises a main bolt (1), wherein an accommodating cavity (2) penetrating through a rod body of the main bolt (1) is formed in the middle of the main bolt (1), the accommodating cavity (2) comprises a small-caliber channel (21) communicated from top to bottom, a reducing communicating channel (22) with a horn-shaped structure and an upward large opening, a large-caliber channel (23) and a fastening groove (24), the diameter of the small-caliber channel (21) is equal to that of a small opening end of the reducing communicating channel (22) with the horn-shaped structure, the diameter of a large opening end of the reducing communicating channel (22) is equal to that of the large-caliber channel (23), the diameter of the fastening groove (24) is larger than that of the large-caliber channel (23), an internal thread is formed on the inner wall of the fastening groove (24), and a pressure relief groove (25) extending outwards is formed in the large-caliber channel (23); a pressing block (3) is arranged in the reducing communicating channel (22), the pressing block (3) is jointed with the inner wall of the reducing communicating channel (22), and the bottom of the pressing block (3) is provided with a bulge which is matched with the reducing communicating channel (22) and extends into the small-caliber channel (21), a buffer piece (4) is arranged in the large-caliber channel (23) above the pressing block (3), a fastening bolt (5) is arranged at the top of the buffer part (4), the diameter of a screw rod of the fastening bolt (5) is smaller than that of the large-caliber channel (23), the screw rod of the fastening bolt (5) extends into the large-caliber channel (23) and is fixed with the top of the buffer part (4), a plurality of pressure relief holes (51) are arranged on the nut of the fastening bolt (5) corresponding to the large-caliber channel (23), and external threads are formed outside the nut of the fastening bolt (5) and are in threaded connection with the fastening groove (24) through the nut; the bottom of the screw rod of the main bolt (1) is obliquely and upwards provided with a plurality of auxiliary pressure relief channels (6) communicated with the reducing communication channel (22).
2. The self-adjusting pressure-relief type bolt structure according to claim 1, wherein the buffer member (4) comprises a fixed plate (41) and a telescopic sleeve rod (42) arranged at the bottom of the fixed plate (41), the telescopic sleeve rod (42) comprises a sleeve (43) and a moving rod (44), a spring (45) is arranged in the sleeve (43), the top of the moving rod (44) is arranged in the sleeve (43), and a limit block (46) is arranged at the top of the moving rod (44).
3. The self-pressure-release bolt structure according to claim 2, wherein a pressure-release plate (47) is further provided at the bottom end of the moving rod (44).
4. The self-pressure-relief bolt structure according to claim 2, wherein a pressure spring (48) is further sleeved outside the sleeve (43) and the moving rod (44).
5. The self-adjusting pressure relief type bolt structure according to claim 2, wherein a connecting column (49) is arranged at the top of the fixing plate (41), an external thread is formed outside the connecting column (49), a notch corresponding to the connecting column (49) is formed at the top of the stud of the fastening bolt (5), an internal thread is arranged in the notch, and the fastening bolt (5) is fixed with the buffer member (4) through the threaded connection between the notch and the connecting column (49).
6. A self-pressure-release type bolt structure according to claim 1, wherein a rotation-assisting notch (52) is provided at the top center of the fastening bolt (5).
7. The self pressure relief type bolt structure according to claim 1, wherein the surface of said compact (3) is coated with a corrosion-resistant coating.
8. The self-adjusting pressure-relief bolt structure according to claim 2, wherein the fixing plate (41) is also provided with a plurality of pressure-relief through holes (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704217.6A CN111963540B (en) | 2020-07-21 | 2020-07-21 | Self-adjusting pressure relief type bolt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704217.6A CN111963540B (en) | 2020-07-21 | 2020-07-21 | Self-adjusting pressure relief type bolt structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111963540A CN111963540A (en) | 2020-11-20 |
| CN111963540B true CN111963540B (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010704217.6A Active CN111963540B (en) | 2020-07-21 | 2020-07-21 | Self-adjusting pressure relief type bolt structure |
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| Country | Link |
|---|---|
| CN (1) | CN111963540B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208123537U (en) * | 2018-04-29 | 2018-11-20 | 盐城方鼎低温阀门有限公司 | A kind of low-temperature safety valve equipped with the locking card of adjusting nut |
| CN208204110U (en) * | 2018-01-31 | 2018-12-07 | 浙江神太太阳能股份有限公司 | The check valve of decompression function built in a kind of band |
| CN109139658A (en) * | 2018-09-12 | 2019-01-04 | 江苏永昊高强度螺栓有限公司 | One kind is from pressure release bolt |
| CN210240692U (en) * | 2019-07-02 | 2020-04-03 | 青岛浩瑞钢制品有限公司 | Self-pressure-relief bolt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10436236B2 (en) * | 2017-10-10 | 2019-10-08 | Velcro BVBA | Threaded fastening |
-
2020
- 2020-07-21 CN CN202010704217.6A patent/CN111963540B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208204110U (en) * | 2018-01-31 | 2018-12-07 | 浙江神太太阳能股份有限公司 | The check valve of decompression function built in a kind of band |
| CN208123537U (en) * | 2018-04-29 | 2018-11-20 | 盐城方鼎低温阀门有限公司 | A kind of low-temperature safety valve equipped with the locking card of adjusting nut |
| CN109139658A (en) * | 2018-09-12 | 2019-01-04 | 江苏永昊高强度螺栓有限公司 | One kind is from pressure release bolt |
| CN210240692U (en) * | 2019-07-02 | 2020-04-03 | 青岛浩瑞钢制品有限公司 | Self-pressure-relief bolt |
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| Publication number | Publication date |
|---|---|
| CN111963540A (en) | 2020-11-20 |
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