CN112412937A - 40000 ton self-discharging marine protection net quick dismounting bolt - Google Patents
40000 ton self-discharging marine protection net quick dismounting bolt Download PDFInfo
- Publication number
- CN112412937A CN112412937A CN202011078749.XA CN202011078749A CN112412937A CN 112412937 A CN112412937 A CN 112412937A CN 202011078749 A CN202011078749 A CN 202011078749A CN 112412937 A CN112412937 A CN 112412937A
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- Prior art keywords
- connecting rod
- opening
- connector
- rod
- bolt
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- 238000007599 discharging Methods 0.000 title claims description 14
- 230000007246 mechanism Effects 0.000 claims description 27
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0216—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable
- F16B5/0233—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable allowing for adjustment perpendicular to the plane of the plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
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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
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
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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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0266—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread using springs
Abstract
The invention discloses a quick disassembling bolt of a 40000 ton self-unloading marine protection net, which comprises a connector, a first through hole is arranged in the cross section direction of the connector, a main body and a pressing plate are arranged in the first through hole in a penetrating way, the included angle between the axis of the main body and the axis of the connector in the vertical direction is 45-135 degrees, one side of the main body close to the pressing plate is a plane, a plurality of first springs are arranged between the main body and the pressing plate, the pressing plate is fixedly connected with the main body through a first spring, a first opening is arranged at the position of the main body close to the center of the plate surface, a second through hole corresponding to the first opening is arranged on the connector, a positioning rod is arranged in the first opening and the second through hole in a penetrating way, the locating rod is sleeved with a locating pipe fixed on the outer surface of the connector, and one side of the connector, which is close to the pressing plate, is provided with a bolt connected with the connector in a threaded manner. The bolt provided by the invention is convenient to install, simple to operate, time-saving and efficient.
Description
Technical Field
The invention relates to the field of ship safety equipment, in particular to a 40000-ton quick-dismounting bolt for a self-discharging ship protection net.
Background
The mode that the marine protecting net generally adopted bolted connection is fixed, and 40000 tons of self-discharging ships's protecting net is in large quantity, adopt bolted connection's mode fixed will seriously drag the job schedule at a slow pace, influence work efficiency, consequently, adopt wedge bolt to connect fixed protecting net, and the unable quick dismantlement of bolt part of wedge bolt makes the inside maintenance of bolt become difficult, for this necessary design a convenient bolt of dismouting, the dismouting process of this kind of bolt is reduced, improve work efficiency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the bolt with accurate positioning, high forming quality and convenient operation. The bolt has the characteristics of convenience and rapidness in installation, simplicity in operation, time saving and high efficiency.
In order to achieve the purpose, the invention provides a 40000 ton protective net quick-dismounting bolt for a self-discharging ship, which comprises a connector, wherein a first through hole is formed in the cross section direction of the connector, a main body and a pressing plate are arranged in the first through hole in a penetrating manner, the included angle between the axis of the main body and the axis of the connector in the vertical direction ranges from 45 degrees to 135 degrees, one side of the main body close to the pressing plate is a plane, a plurality of first springs are arranged between the main body and the pressing plate, the pressing plate is fixedly connected with the main body through the first springs, a first opening is formed in the position, close to the center, of the plate surface of the main body, a second through hole corresponding to the first opening is formed in the connector, positioning rods are arranged in the first opening and the second through hole in a penetrating manner, positioning pipes fixed on the outer surface of the connector are sleeved on the positioning rods, and the, be equipped with the bolt with connector threaded connection on the length direction of the rectangular cross section of connector, the other end of bolt is equipped with the nut, still be equipped with two locating lever dismouting mechanisms on the locating lever, be equipped with two second openings that correspond with locating lever dismouting mechanism on the inner wall of registration arm.
As a preferred technical scheme, the positioning rod dismounting mechanism comprises a driving block, a first connecting rod, a second connecting rod, a third connecting rod and a plurality of second springs, two strip-shaped third through holes which are symmetrically arranged are arranged in the positioning rod, third openings communicated with the outside of the positioning rod are respectively arranged at the top end and the bottom end of each third through hole, the directions of the two third openings communicated with the same third through hole are the same, one end of the first connecting rod and one end of the third connecting rod penetrate through the third openings and are arranged in the third through holes, the second connecting rod is vertically arranged in the third through holes, the first connecting rod is fixedly connected with the third connecting rod through the second connecting rod, the driving block is fixedly connected with one end of the first connecting rod, which is far away from the second connecting rod, the second springs are arranged between the driving block and the positioning rod, the driving block is fixedly connected with the second springs, one side of the third connecting rod is also provided with a limiting mechanism, the limiting mechanisms correspond to the second openings one by one.
According to the preferable technical scheme, the limiting mechanism comprises a sliding block and a limiting rod, the limiting rod is hinged to the positioning rod, a strip-shaped fourth through hole is formed in the limiting rod, the sliding block is arranged in the fourth through hole, and one end, far away from the second connecting rod, of the third connecting rod is hinged to the sliding block.
As the preferred technical scheme, a groove is formed in the joint of the sliding block and the limiting rod, and the limiting rod is matched with the groove.
As a preferable technical scheme, a plurality of fourth openings are further arranged on one side of the first opening, an ejecting mechanism is arranged on the inner wall of each fourth opening, the horizontal cross section of each fourth opening is arc-shaped, and the radian of the arc-shaped cross section of each fourth opening is larger than 180 degrees.
As a preferred technical scheme, the pop-up mechanism comprises a fixed cylinder, a third spring and a ball, a fifth opening is formed in the inner wall of the fourth opening, the fixed cylinder is arranged in the fifth opening, the third spring is fixed in the fixed cylinder, and the ball is connected with the third spring.
As a preferred technical scheme, a torsion spring is arranged at the hinged position of the limiting rod and the positioning rod.
Preferably, the first spring and the third spring are both compression springs.
Preferably, the diameter of the ball is slightly larger than the width of the fixed cylinder.
According to the preferable technical scheme, the top end of the positioning rod is further provided with a rotary cover, the vertical cross section of the rotary cover is in a convex shape, the protruding end of the convex cross section of the rotary cover faces the positioning rod, and the positioning rod is in threaded connection with the rotary cover.
The invention has the advantages and beneficial effects that: through locating lever dismouting mechanism and stop gear can make the bolt part dismantle fast, the inside maintenance of the bolt of being convenient for, simultaneously, through pop-up mechanism and fourth opening for this wedge bolt is more stable when fixed guard net, also makes more convenient when dismantling this wedge bolt simultaneously, thereby has improved work efficiency, and it is convenient to use this bolt installation, easy operation, and it is high-efficient to save time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an enlarged view of portion B of FIG. 2;
FIG. 4 is a schematic view of the connection structure of the slider and the stopper rod;
FIG. 5 is a cross-sectional view of a positioning rod;
FIG. 6 is an enlarged view of portion A of FIG. 1;
in the figure: 1. a main body; 2. a connector; 3. a bolt; 4. a nut; 5. a first opening; 6. positioning a rod; 7. a positioning tube; 8. a second opening; 9. a first spring; 10. a pressing plate; 11. a drive block; 12. a first link; 13. a second link; 14. a third link; 15. a second spring; 16. a third through hole; 17. a third opening; 18. a slider; 19. a limiting rod; 20. a fourth via hole; 21. a fourth opening; 22. a fixed cylinder; 23. a third spring; 24. a ball bearing; 25. a fifth opening; 26. a torsion spring; 27. and (5) screwing a cover.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-2 and 5, a 40000 ton quick-release bolt for a protective net of a self-discharging ship comprises a connector 2, a first through hole is arranged in the cross section direction of the connector 2, a main body 1 and a pressing plate 10 are arranged in the first through hole in a penetrating manner, the included angle between the axis of the main body 1 and the axis of the connector 2 in the vertical direction ranges from 45 degrees to 135 degrees, one side of the main body 1 close to the pressing plate 10 is a plane, a plurality of first springs 9 are arranged between the main body 1 and the pressing plate 10, the pressing plate 10 is fixedly connected with the main body 1 through the first springs 9, a first opening 5 is arranged near the center of the plate surface of the main body 1, a second through hole corresponding to the first opening 5 is arranged on the connector 2, a positioning rod 6 is arranged in the first opening 5 and the second through hole in a penetrating manner, a positioning pipe 7 fixed on the outer surface of the connector 2 is sleeved on the, be equipped with on the length direction of the rectangular cross section of connector 2 with connector 2 threaded connection's bolt 3, the other end of bolt 3 is equipped with nut 4, still is equipped with two locating lever dismouting mechanisms on the locating lever 6, is equipped with two second openings 8 that correspond with locating lever dismouting mechanism on the inner wall of registration arm 7.
The positioning rod dismounting mechanism comprises a driving block 11, a first connecting rod 12, a second connecting rod 13, a third connecting rod 14 and a plurality of second springs 15, two strip-shaped third through holes 16 which are symmetrically arranged are arranged in the positioning rod 6, third openings 17 communicated with the outside of the positioning rod 6 are respectively arranged at the top end and the bottom end of each third through hole 16, the directions of the two third openings 17 communicated with the same third through hole 16 are the same, one end of the first connecting rod 12 and one end 14 of the third connecting rod penetrate through the third openings 17 and are arranged in the third through holes 16, the second connecting rod 13 is vertically arranged in the third through holes 16, the first connecting rod 12 is fixedly connected with the third connecting rod 14 through the second connecting rod 13, the driving block 11 is fixedly connected with one end of the first connecting rod 12 far away from the second connecting rod 13, the second springs 15 are arranged between the driving block 11 and the positioning rod 6, the driving block 11 is fixedly connected with the second springs 15, one side of the third connecting rod 14 is also provided with a limiting mechanism, the limiting mechanisms correspond to the second openings 8 one by one.
The top end of the positioning rod 6 is also provided with a screw cap 27, the vertical section of the screw cap 27 is convex, the protruding end of the convex section of the screw cap 27 faces the positioning rod 6, and the positioning rod 6 is in threaded connection with the screw cap 27.
In fig. 1, a dotted frame on the right side of a pressing plate 10 sequentially shows a protection net support, a protection net and a protection net frame, the protection net support is a rectangular reinforcing structure and surrounds the periphery of the protection net frame to reinforce the strength of the protection net frame, fig. 2 is actually a front cross-sectional view of the present invention, before assembling a positioning rod 6, a first connecting rod 12, a second connecting rod 13 and a third connecting rod 14 are processed, after sequentially placing the first connecting rod 12 and the third connecting rod 14 in a third through hole 16 and a third opening 17, the first connecting rod 12 and the third connecting rod 14 are bonded to the second connecting rod 13, a screw cap 27 is screwed in to complete assembly with the positioning rod 6, in the using process, a nut 4 is abutted against the frame behind the protection net, then a bolt 3 is passed through the protection net frame to align with the nut 4, the nut 4 is rotated, at this time, the pressing plate 10 is abutted against the protection net, and the protection net is clamped between the pressing, with the continuous rotation of the nut 4, the distance between the pressing plate 10 and the protection net frame is smaller and smaller, and at the same time, the positioning rod 6 slides along the first opening 5, after the pressing plate 10 abuts against the protection net, the nut 4 is continuously and slowly rotated, so that the first spring 9 is in a compressed state, the protection net is fixed through the pressing plate 10 and the frame behind the protection net, when the protection net needs to be moved in a small range, the pressing plate 10 can be manually pulled, so that a certain gap exists between the pressing plate 10 and the protection net, after the protection net is moved, the pressing plate 10 is loosened, when the main body 1 needs to be disassembled, the driving block 11 is pressed inwards, at the moment, the second spring 15 is contracted, the first connecting rod 12 moves inwards along the third opening 17, the third connecting rod 14 is driven to move inwards along the third opening 17 through the second connecting rod 13, the limiting mechanism is separated from the second opening 8, can pull out registration arm 7 with locating lever 6, after locating lever 6 breaks away from first opening 5, can take main part 1 out, examine and repair this bolt inside, after examining and repairing, pass connector 2 with main part 1, then, in reinserting registration arm 7 with locating lever 6, stop gear slides downwards along the inner wall of registration arm 7, until second opening 8 departments back, with the cooperation of second opening 8, at this moment, locating lever 6 passes first opening 5, play limiting displacement to main part 1.
As shown in fig. 3-4, the limiting mechanism includes a sliding block 18 and a limiting rod 19, the limiting rod 19 is hinged to the positioning rod 6, a fourth through hole 20 is formed in the limiting rod 19, the sliding block 18 is disposed in the fourth through hole 20, and one end of the third connecting rod 14, which is far away from the second connecting rod 13, is hinged to the sliding block 18.
The slider 18 is provided with a groove at the joint with the limiting rod 19, and the limiting rod 19 is matched with the groove.
A torsion spring 26 is arranged at the hinged part of the limiting rod 19 and the positioning rod 6.
When the positioning rod 6 needs to be pulled out, the driving block 11 is pressed, the third connecting rod 14 is driven to move inwards along the third opening 17 through the first connecting rod 12 and the second connecting rod 13, the third connecting rod 14 pulls the sliding block 18 at the moment, the sliding block 18 slides along the limiting rod 19, the limiting rod 19 rotates and is separated from the second opening 8, at the moment, the positioning rod 6 can be pulled out of the positioning tube 7, after the internal overhaul of the bolt is completed, the positioning rod 6 is inserted into the positioning tube 7 again, at the moment, the end of the limiting rod 19 moves along the inner wall of the positioning tube 7 through the restoring force of the torsion spring 26 until the end of the limiting rod 19 moves to the second opening 8, and under the restoring force action of the torsion spring 26, the limiting rod 19 continues to rotate and is matched with the second opening 8 to limit the positioning rod 6.
As shown in fig. 1 and 6, a plurality of fourth openings 21 are further disposed on one side of the first opening 5, an ejecting mechanism is disposed on an inner wall of each fourth opening 21, a horizontal cross section of each fourth opening 21 is arc-shaped, and a radian of an arc-shaped cross section of each fourth opening 21 is greater than 180 °.
The pop-up mechanism comprises a fixed cylinder 22, a third spring 23 and a ball 24, a fifth opening 25 is arranged on the inner wall of the fourth opening 21, the fixed cylinder 22 is arranged in the fifth opening 25, the third spring 23 is fixed in the fixed cylinder 22, and the ball 24 is connected with the third spring 23.
The first spring 9 and the third spring 23 are both compression springs.
The diameter of the ball 24 is slightly larger than the width of the fixed cylinder 22.
When locating lever 6 removes in first opening 5, along with the rotation of nut 4, locating lever 6 also is more and more littleer with the interval of pressing the clamp plate 6, at this moment, locating lever 6 is gone into in the fourth opening 21, extrusion ball 24, make third spring 23 shrink, because the radian of fourth opening 21's arc cross-section is greater than 180, certain limiting displacement has been played to locating lever 6, thereby it is more stable at the in-process that plays the fixed action to the protecting net to make this bolt, when the fixed action of bolt to the protecting net is removed to needs, reverse rotation nut 4, make locating lever 6 have the trend that breaks away from fourth opening 21, at this moment, the restoring force of third spring 23 makes ball 24 pop out solid fixed cylinder 22, ball 24 promotes locating lever 6, make locating lever 6 break away from fourth opening 21.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A protection net quick-dismounting bolt for a 40000-ton self-discharging ship is characterized by comprising a connector (2), wherein a first through hole is formed in the cross section direction of the connector (2), a main body (1) and a pressing plate (10) penetrate through the first through hole, the included angle range of the axis of the main body (1) and the axis of the connector (2) in the vertical direction is 45-135 degrees, one side, close to the pressing plate (10), of the main body (1) is a plane, a plurality of first springs (9) are arranged between the main body (1) and the pressing plate (10), the pressing plate (10) is fixedly connected with the main body (1) through the first springs (9), a first opening (5) is formed in the position, close to the center, of the plate surface of the main body (1), a second through hole corresponding to the first opening (5) is formed in the connector (2), and a positioning rod (6) penetrates through the first opening (5) and the second through hole, the cover is equipped with registration arm (7) of fixing at connector (2) surface on locating lever (6), the shape of the horizontal cross-section of connector (2) is the rectangle, be equipped with on the length direction of the rectangular cross-section of connector (2) bolt (3) with connector (2) threaded connection, the other end of bolt (3) is equipped with nut (4), still be equipped with two locating lever dismouting mechanisms on locating lever (6), be equipped with two second openings (8) that correspond with locating lever dismouting mechanism on the inner wall of registration arm (7).
2. The quick dismounting bolt of protection net for 40000 ton self-discharging ships according to claim 1, wherein the positioning rod dismounting mechanism comprises a driving block (11), a first connecting rod (12), a second connecting rod (13), a third connecting rod (14) and a plurality of second springs (15), two symmetrically arranged strip-shaped third through holes (16) are arranged in the positioning rod (6), third openings (17) communicated with the outside of the positioning rod (6) are respectively arranged at the top end and the bottom end of each third through hole (16), the directions of the two third openings (17) communicated with the same third through hole (16) are the same, one end of the first connecting rod (12) and one end (14) of the third connecting rod are respectively arranged in the third through holes (16) through the third openings (17), the second connecting rod (13) is vertically arranged in the third through holes (16), the first connecting rod (12) is fixedly connected with the third connecting rod (14) through the second connecting rod (13), the driving block (11) is fixedly connected with one end, far away from the second connecting rod (13), of the first connecting rod (12), the second spring (15) is arranged between the driving block (11) and the positioning rod (6), the driving block (11) is fixedly connected with the second spring (15), one side of the third connecting rod (14) is further provided with a limiting mechanism, and the limiting mechanism corresponds to the second openings (8) one to one.
3. The protective net quick-dismounting bolt for the 40000 ton self-discharging ship according to claim 2, wherein the limiting mechanism comprises a sliding block (18) and a limiting rod (19), the limiting rod (19) is hinged to the positioning rod (6), a strip-shaped fourth through hole (20) is formed in the limiting rod (19), the sliding block (18) is arranged in the fourth through hole (20), and one end, far away from the second connecting rod (13), of the third connecting rod (14) is hinged to the sliding block (18).
4. The protective net quick-dismantling bolt for the 40000 ton self-discharging ship as recited in claim 3, wherein a groove is formed at the joint of the sliding block (18) and the limiting rod (19), and the limiting rod (19) is matched with the groove.
5. The protective net quick-dismantling bolt for the 40000 ton self-discharging ship according to claim 4, wherein a plurality of fourth openings (21) are further provided at one side of the first opening (5), an ejecting mechanism is provided on the inner wall of each fourth opening (21), the horizontal cross section of each fourth opening (21) is arc-shaped, and the radian of the arc-shaped cross section of each fourth opening (21) is greater than 180 °.
6. The protective net quick-dismounting bolt for the 40000 ton self-discharging ship according to claim 5, wherein the ejecting mechanism comprises a fixed cylinder (22), a third spring (23) and a ball (24), a fifth opening (25) is formed in the inner wall of the fourth opening (21), the fixed cylinder (22) is arranged in the fifth opening (25), the third spring (23) is fixed in the fixed cylinder (22), and the ball (24) is connected with the third spring (23).
7. The protective net quick-dismantling bolt for the 40000 ton self-discharging ship as recited in claim 3, wherein a torsion spring (26) is provided at the joint of the limiting rod (19) and the positioning rod (6).
8. The quick release latch for a protection net of a 40000 ton dump vessel as recited in claim 6, characterized in that the first spring (9) and the third spring (23) are compression springs.
9. The quick release latch for a protection net of a 40000 ton dump boat according to claim 6, wherein the diameter of the ball (24) is slightly larger than the width of the fixed cylinder (22).
10. The protective net quick-dismantling bolt for the 40000 ton self-discharging ship according to claim 1, wherein a screw cap (27) is further disposed at a top end of the positioning rod (6), a vertical cross section of the screw cap (27) is in a convex shape, a protruding end of the convex cross section of the screw cap (27) faces the positioning rod (6), and the positioning rod (6) is in threaded connection with the screw cap (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078749.XA CN112412937B (en) | 2020-10-10 | 2020-10-10 | 40000 ton self-discharging marine protection net quick dismounting bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078749.XA CN112412937B (en) | 2020-10-10 | 2020-10-10 | 40000 ton self-discharging marine protection net quick dismounting bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112412937A true CN112412937A (en) | 2021-02-26 |
| CN112412937B CN112412937B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011078749.XA Active CN112412937B (en) | 2020-10-10 | 2020-10-10 | 40000 ton self-discharging marine protection net quick dismounting bolt |
Country Status (1)
| Country | Link |
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| CN (1) | CN112412937B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US325221A (en) * | 1885-08-25 | Fastening device | ||
| US581693A (en) * | 1897-05-04 | Curtain-holder | ||
| US1148429A (en) * | 1915-04-28 | 1915-07-27 | George H Beach | Tension device for scissors and shears. |
| US1925174A (en) * | 1931-08-03 | 1933-09-05 | William F Cremean | Key bolt or self-locking pin |
| US1963514A (en) * | 1933-05-15 | 1934-06-19 | Guy P Wherren | Form tie clamp |
| US2297831A (en) * | 1940-11-04 | 1942-10-06 | Heard Albert Sidney | Bolt |
| US3476007A (en) * | 1968-09-09 | 1969-11-04 | Frank C Collister | Key bolt |
| US4207794A (en) * | 1978-04-05 | 1980-06-17 | Collister Frank C | Key bolt |
| US4508479A (en) * | 1981-07-07 | 1985-04-02 | Georg Mez | Device for pulling together |
| CN202851560U (en) * | 2012-09-30 | 2013-04-03 | 成都飞机工业（集团）有限责任公司 | Quick-dismantling safe plug pin |
| CN205977957U (en) * | 2016-08-31 | 2017-02-22 | 贵州航天特种车有限责任公司 | Self locking inserted pin |
-
2020
- 2020-10-10 CN CN202011078749.XA patent/CN112412937B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US325221A (en) * | 1885-08-25 | Fastening device | ||
| US581693A (en) * | 1897-05-04 | Curtain-holder | ||
| US1148429A (en) * | 1915-04-28 | 1915-07-27 | George H Beach | Tension device for scissors and shears. |
| US1925174A (en) * | 1931-08-03 | 1933-09-05 | William F Cremean | Key bolt or self-locking pin |
| US1963514A (en) * | 1933-05-15 | 1934-06-19 | Guy P Wherren | Form tie clamp |
| US2297831A (en) * | 1940-11-04 | 1942-10-06 | Heard Albert Sidney | Bolt |
| US3476007A (en) * | 1968-09-09 | 1969-11-04 | Frank C Collister | Key bolt |
| US4207794A (en) * | 1978-04-05 | 1980-06-17 | Collister Frank C | Key bolt |
| US4508479A (en) * | 1981-07-07 | 1985-04-02 | Georg Mez | Device for pulling together |
| CN202851560U (en) * | 2012-09-30 | 2013-04-03 | 成都飞机工业（集团）有限责任公司 | Quick-dismantling safe plug pin |
| CN205977957U (en) * | 2016-08-31 | 2017-02-22 | 贵州航天特种车有限责任公司 | Self locking inserted pin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112412937B (en) | 2022-04-19 |
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