CN102963503B - A kind of plug-in type lifeboat hook device with heavily loaded unhook function - Google Patents
A kind of plug-in type lifeboat hook device with heavily loaded unhook function Download PDFInfo
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- CN102963503B CN102963503B CN201210458548.1A CN201210458548A CN102963503B CN 102963503 B CN102963503 B CN 102963503B CN 201210458548 A CN201210458548 A CN 201210458548A CN 102963503 B CN102963503 B CN 102963503B
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- face
- overcoat
- lock tube
- carrier block
- counterbore
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Abstract
The invention provides a kind of plug-in type lifeboat hook device with heavily loaded unhook function; break through traditional opening clasp joint formula ship hook structure pattern; ship hook body is gyro-rotor full-closed structure; adopt the cylinder inserted link with indentation double cone annular groove to carry out the ship hook of plug-in type mounting, utilizing can some variation rectangular block of locking, spring anti-dropping, reset and protection; there is load-carrying capacity large; unhook stroke is short, the reliable and withstanding corrosion of lock hook, feature easy to maintenance.
Description
Technical field
The present invention relates to a kind of ship hook device, especially a kind of plug-in type life boat ship hook device of tool heavy duty unhook function.
Background technology
Traditional lifeboat hook works the open type suspension hook design of reusing based on tradition, by suspension hook being inverted pin joint on ship hook body, the suspension ring be connected with suspender on ship before life boat is transferred with ship hook clasp joint, due to open type suspension hook inherent limitation structurally, during connection, suspension ring need from open-mouth clasp joint, during disengagement, rotated by suspension hook and suspension ring are thrown off from open-mouth.Hang ship hook in process for preventing life boat surprisingly to break off relations, the outlet that escapement blocks suspension hook need be set, but escapement generally can only ensure vertically or the state of rocking hangs a little time anticreep, when hang cause large ship roll angle larger because of wave in process time, easily cause in the unexpected unhook in lifeboat hook midway, cause personal casualty on ship.
Ship hook device cannot be designed to enclosed construction by traditional open type ship hook, inevitably cause the etching problem of seawater salt fog, if avoid the inherent limitation of open type ship hook, apply novel hooking manner, ship hook is designed to enclosed construction, improves the safety and reliability of ship hook, improve the antirust of ship hook and corrosion resistant ability simultaneously, reduce maintenance cost, improve the service life of ship hook.
A kind of have the plug-in type lifeboat hook device (application for a patent for invention number: 201210453615.0) give a kind of plug-in type ship hook based on rotary structure having and carry unhook function; there is totally-enclosed compact ship hook body, utilize and the some steel balls carrying of locking and dual spring can effectively prevent unexpected unhook and self-protection function.The limitation that the traditional ship hook device of this changing of design can not be closed, being conducive to antirust, anti-corrosive, is a kind of ship hook structure of novelty, be suitable for the ship hook of middle side crops industry life boat.But, because this ship hook is based on ball bearing body, be point cantact between inserted link annular groove and carrying steel ball body in theory, local stress is larger, although stress suffered by each spheroid can be disperseed by increasing carrying spheroid diameter and distribution quantity, but when not increasing carrying sphere size, load-carrying capacity is limited to.The present invention, on above-mentioned basis of applying for a patent, changes supporting body version and improves and simplify other structure, makes it the load-carrying capacity requirement meeting medium-sized or above life boat.
Summary of the invention
The object of the invention is to overcome shortcomings and deficiencies of the prior art, meeting real requirement and the plug-in type life boat ship hook of a kind of heavily loaded unhook function provided.
In order to achieve the above object, the technical solution used in the present invention is as follows:
A kind of plug-in type lifeboat hook device with heavily loaded unhook function, the plunger 12 comprising ship hook body and plug with ship hook body, is characterised in that: ship hook body comprises overcoat 1, lock tube 2, carrier block 3, sliding sleeve 4, linear bearing 5, rib 6, stage clip 7, mount pad 8, extension bar 9, draw ring 11, described overcoat 1 is columnar structured, the endoporus of overcoat 1 is respectively the longer large counterbore of the degree of depth and shorter little counterbore and less through hole from bottom to top and forms, the large counterbore of overcoat 1 coordinates with the short dome external cylindrical surface of mount pad 8, and overcoat 1 lower surface circumference is provided with some tapped bore and is fastenedly connected by screw and mount pad 8, described lock tube 2 is flange sleeve basic structure, endoporus is through hole, be provided with in lock tube 2 upper end and coordinate the dome of locating with the little counterbore of overcoat 1, lock tube 2 flange upper surface and the large counterbore base end face of overcoat 1 are close to and are connected by screw fixing, the same level vertical with its endoporus at the middle part of lock tube 2 be circumferentially laid with at least 3 identical variation rectangular opening 2a, variation rectangular opening 2a inboard portion is rectangle, outside is isosceles trapezoid, and lock tube 2 cylindrical is provided with the face of cylinder one 2e, circular conical surface 2f and the face of cylinder two 2g from top to bottom successively, described carrier block 3 is installed on lock tube 2 and makes a variation in rectangular opening 2a, it is the part gyro-rotor of semi arch rotoforming crossing with vertical curve inside carrier block 3, form convex arc surface 3a and inner cylinder 3b, all the other shapes are consistent with the cavity shape that the variation rectangular opening on lock tube 2 is formed, outer surface top is outer cylinder 3f, and bottom is male cone (strobilus masculinus) 3g, described sliding sleeve 4 cylindrical is two sections of up big and down small faces of cylinder, lower cylindrical surface cover is equipped with linear bearing 5 and rolls with overcoat 1 endoporus and coordinate, keep the distance between upper cylindrical face and overcoat 1 endoporus b, sliding sleeve 4 upper surface and lower surface are respectively provided with counterbore, upper end counterbore is from top to bottom internal conical surface one 4a according to this, inner cylinder face one 4b, internal conical surface two 4c, inner cylinder face two 4d and internal conical surface three 4e, internal conical surface one 4a is identical with the cone angle of internal conical surface two 4c and identical with the cone angle of the male cone (strobilus masculinus) 3g of carrier block 3 with the circular conical surface 2f of lock tube 2, inner cylinder face one 4b and inner cylinder face two 4d respectively with the face of cylinder one 2e and the face of cylinder two 2g bearing fit of lock tube 2, tapped bore is provided with in counterbore base center, sliding sleeve 4 lower end, described stage clip 7 upper end is resisted against in the lower end counterbore of sliding sleeve 4, and lower end abutment is in the counterbore of mount pad 8, described plunger (12) upper end is also connected with inverted U-shaped suspension ring (13), and lower end is provided with the annular groove of concaved circular cambered surface (12a) and circular conical surface from bottom to top successively, and its arc diameter is identical with carrier block 3 head convex arc surface radius.
The quantity of rectangular opening 2a that described lock tube 2 makes a variation is equal with carrier block 3 quantity, and carrier block 3 can slide in variation rectangular opening 2a.
Described sliding sleeve 4 lower surface is greater than apart from mount pad 8 upper surface distance S when plunger 12 does not insert and moves down stroke needed for releasing operation sliding sleeve 4.
Described overcoat 1 upper surface is also provided with turnover protecting cover 10; protecting cover 10 circumference is provided with circular cone flange; abut in overcoat 1 upper cone face; in overcoat 1 upper cone face one, place is provided with key seat; key seat is provided with pin-and-hole and protecting cover 10 circular cone flange one place pin joint, and protecting cover 10 can be rotated, when plunger 12 does not insert around key seat pin-and-hole axis; protecting cover 10 cover cap seals plunger 12 ingate in overcoat 1 upper surface, the inner invasion and attack from Exposure to Sunlight rainwater and salt fog of fender guard.
Be provided with radial pin-and-hole above described plunger 12, can be connected with suspension ring 13.
Feature of the present invention with beneficial effect is: the totally-enclosed ship hook structure of gyro-rotor be connected based on plug-in type; adopt and be provided with upside on the downside of circular conical surface being the ship hook that the cylinder plunger of arc surface annular groove carries out plug-in type mounting; by the carrier block carrying in some variation rectangular openings of the uniform setting of lock tube circumference same level; carrier block and arc surface under plunger annular groove and carrier block and lock tube are made a variation between rectangular opening, be face to contact; load-carrying capacity is large; and there is spring anti-dropping protection; unhook stroke is short; connect reliable and withstanding corrosion, feature easy to maintenance.
Accompanying drawing explanation
Accompanying drawing 1; Ship hook cutaway view (the non-insert state of plunger);
Accompanying drawing 2: Fig. 1 plunger insert state figure;
Accompanying drawing 3: Fig. 1 release position figure;
Accompanying drawing 4: lock tube block diagram;
Carrier block enlarged drawing in accompanying drawing 5: Fig. 1;
The A of accompanying drawing 6: Fig. 5 is to axonometric drawing;
The B of accompanying drawing 7: Fig. 5 is to axonometric drawing.
In figure: 1, overcoat, 2, lock tube, 2a, variation rectangular opening, 2b, upper plane one, 2c, side plane one, 2d, skew back face one, 2e, the face of cylinder one, 2f, circular conical surface, 2g, the face of cylinder two, 3, carrier block, 3a, convex arc surface, 3b, inner cylinder, 3c, side plane two, 3d, skew back face two, 3e, upper plane two, 3f, outer cylinder, 3g, male cone (strobilus masculinus), 4, overcoat, 4a, internal conical surface one, 4b, inner cylinder face one, 4c, internal conical surface two, 4d, inner cylinder face one, 4e, internal conical surface three, 5, linear bearing, 6, rib, 7, stage clip, 8, mount pad, 9, extension bar, 10, protecting cover, 11, draw ring, 12, plunger, 12a, concaved circular cambered surface, 13, suspension ring.
Detailed description of the invention
Being used for life boat ship hook below by the present invention is embodiment, and by reference to the accompanying drawings, is described in further detail technical scheme of the present invention.
Fig. 1 is centerline sectional view excessively of the present invention, be illustrated as state when not inserting with plunger 12, because this device is based on rotary structure, cross centerline sectional view and can demonstrate all component parts, comprising: overcoat 1, lock tube 2, carrier block 3, sliding sleeve 4, linear bearing 5, rib 6, stage clip 7, mount pad 8, extension bar 9, protecting cover 10, draw ring 11.In the example shown, the endoporus of overcoat 1 is respectively the longer large counterbore of the degree of depth and shorter little counterbore and less through hole from bottom to top and forms, the large counterbore face of cylinder and bottom surface circular conical surface transition, the large counterbore of overcoat 1 coordinates with the short dome external cylindrical surface of mount pad 8, and overcoat 1 lower surface circumference is provided with some tapped bore and is fastenedly connected by screw and mount pad 8; In the middle part of lock tube 2, the uniform quantity of circumference same level is at least 3 variation rectangular opening 2a built with carrier block 3, lock tube 2 coordinates to locate with the counterbore on overcoat 1 top by upper end dome makes its center of gyration axis keep overlapping with the center of gyration axis of overcoat 1, and be connected with overcoat 1 by screw, the effect of lock tube 2 be bear carrier block 3 load and transfer loads to overcoat 1.Sliding sleeve 4 lower surface is greater than apart from mount pad 8 upper surface distance S when plunger 12 does not insert and moves down stroke needed for releasing operation sliding sleeve 4.
Fig. 2 is the view that Fig. 1 inserts plunger 12, when this device needs to be connected with plunger, first protecting cover 10 upset is opened and expose jack, then need external control device to pull sliding sleeve 4 to move down by draw ring 11 and abdicate carrier block 3 space outerpace, draw ring 11 is unclamped after inserting plunger 12, the effect low sleeve 4 of stage clip 7 moves to be clamp-oned in the annular groove of plunger 12 by carrier block 3, is blocked plunger 12 by carrier block 3 head convex arc surface 3a and is born the load of plunger 12.Being installed on lock tube 2 head of carrier block 3 in rectangular opening 2a that makes a variation is the convex arc rotary surface formed by arc generatrix, be called for short convex arc surface 3a, under the effect of load, the bottom of convex arc surface 3a and the concaved circular cambered surface 12a of plunger 12 annular groove bottom are adjacent to and bear the load of plunger 12, convex arc surface 3a is set to identical its holding surface that makes with the arc radius of concaved circular cambered surface 12a contact, effectively improves the distribution of stress of carrier block 3.Sliding sleeve 4 passes through internal conical surface one 4a under the promotion of stage clip 7, carrier block 3 is clamp-oned in the variation rectangular opening 2a of lock tube 2 by inner cylinder face one 4b and internal conical surface two 4c, under the effect of stage clip 7, inner cylinder face one 4b of sliding sleeve 4 has sealed the route of retreat of carrier block 3, it is made to keep being connected with plunger 12, the top outer round surface of sliding sleeve 4 does not contact and the b that keeps the distance with counterbore surface large in overcoat 1, avoid because of the horizontal component of force of load suffered by carrier block 3 that to cause sliding sleeve 4 to be out of shape with overcoat 1 stuck, sliding sleeve 4 bottom outer round surface keeps rolling with overcoat 1 by suit linear bearing 5 and coordinates, the lower end of linear bearing 5 seals outlet by baffle plate 6, sliding sleeve 4 bottom counterbore is used for the location of stage clip 7 and is provided with screw and is connected with extension bar 9.Mount pad 8 and overcoat 1 are connected by screw, and are connected by the attachment face on screw and life boat.
Fig. 3 is the release position figure of Fig. 2, when needs carry out having carry release time, draw ring 11 is pulled to overcome stage clip 7 elastic force by the unhook operating control of peripheral hardware and the friction drag between sliding sleeve 5 and overcoat 1 drives sliding sleeve 4 to move down, once inner cylinder face one 4b of the sliding sleeve 4 and outer cylinder 3f of carrier block 3 departs from, just open the outlet of carrier block 3, under load effect, carrier block 3 is extruded by plunger 12, realizes being separated of plunger 12 and ship hook body, realizes having carrying breaking off relations.No-load breaks off relations identical with there being year unhook mode, and it is implement to break off relations after life boat arrives the water surface that no-load breaks off relations, and after sliding sleeve is drop-down, because under the wave action of sea, life boat can wave up and down, at this moment plunger 12 still can automatically disengage connection location.
Fig. 4 is the block diagram of lock tube 2, comprise the variation rectangular opening 2a of some circle distribution, variation rectangular opening 2a is made up of upper plane one 2b be parallel to each other and lower plane, two side plane one 2c and two skew back face one 2d being parallel to each other, comprises the face of cylinder one 2e, circular conical surface 2f and the face of cylinder two 2g in addition.The inner cylinder face one 4b bearing fit of the face of cylinder one 2e and sliding sleeve 4, circular conical surface 2f is identical with sliding sleeve 4 internal conical surface two 4c cone angle, the face of cylinder two 2g and sliding sleeve 4 inner cylinder face two 4d bearing fit.
Fig. 5 is the enlarged drawing of carrier block 3 in Fig. 1, Fig. 6 be the A of Fig. 5 to axonometric drawing, Fig. 7 is that the B of Fig. 5 is to axonometric drawing.As seen from the figure, carrier block 3 obtains after the gyro-rotor cutting formed by its cross section, comprises convex arc surface 3a, inner cylinder 3b, side plane two 3c, skew back face two 3d, upper plane two 3e, outer cylinder 3f and male cone (strobilus masculinus) 3g.Arranging inner cylinder 3b is because figure arc groove 3a top does not have carrying effect, the groove bottom diameter of carrier block 3 inner cylinder 3b and plunger 12 can be made to keep certain distance simultaneously.Fig. 4 also illustrates the stressed sketch of carrier block 3, Pi is load suffered by each carrier block 3, Nyi is the reaction of bearing of lock tube 2 pairs of carrier blocks 3, Fi is the friction drag between lock tube 2 and carrier block, Nxi be sliding sleeve 4 inner cylinder face one 4b to the antagonistic force of carrier block 3, during connection, these try hard to keep maintain an equal level weighing apparatus, during unhook, carrier block 3 is made to depart from connection location because removing Nxi.
Be 201210453615.0 with number of patent application compared with " a kind of there is the plug-in type lifeboat hook device having and carry unhook function ", although be all based on rotary structure, by changing supporting body structure, improve load-carrying capacity, and simplify the structure further, be applicable to the occasion that load is larger.The present invention is not limited to the application of ship hook.
Claims (1)
1. one kind has the plug-in type lifeboat hook device of heavily loaded unhook function, the plunger (12) comprising ship hook body and plug with ship hook body, described ship hook body comprises overcoat (1), lock tube (2), carrier block (3), sliding sleeve (4), linear bearing (5), rib (6), stage clip (7), mount pad (8), draw ring (11), extension bar (9), it is characterized in that: the endoporus of described overcoat (1) is that two sections of size diameter ladder counterbores and bottom through-hole are formed, cylindrical is the up big and down small stepped cylindrical of two sections of diameters, mount pad (8) is equipped with in the lower end of overcoat (1), by flange and overcoat (1) the Internal hole positioning also use screw fastening of mount pad (8), described lock tube (2) endoporus is through hole, upper end is provided with flange and overcoat (1) bottom counterbore and coordinates and locate, flange inner end face and the large counterbore end face of overcoat (1) are connected by screw fastening, the same level vertical with its endoporus at the middle part of lock tube be circumferentially evenly provided with at least 3 identical variation rectangular openings (2a), variation rectangular opening (2a) inboard portion is rectangle, outside is isosceles trapezoid, the quantity of variation rectangular opening (2a) is equal with carrier block (3) quantity, lock tube (2) cylindrical is provided with the face of cylinder one (2e) from top to bottom successively, circular conical surface (2f) and the face of cylinder two (2g), the part gyro-rotor that described carrier block (3) inner side be installed in lock tube (2) variation rectangular opening (2a) is formed for semi arch, all the other shapes are consistent with the cavity that the variation rectangular opening on lock tube (2) is formed, outer surface top is partial cylindrical surface, bottom is part-conical face, and carrier block (3) can slide in variation rectangular opening (2a), described sliding sleeve (4) cylindrical is two sections of up big and down small faces of cylinder, lower cylindrical surface cover is equipped with linear bearing (5) and rolls with overcoat (1) endoporus and coordinate, gap b is kept between upper cylindrical face and overcoat (1) endoporus, sliding sleeve (4) upper surface and lower surface are respectively provided with counterbore, upper end counterbore comprises internal conical surface one (4a) successively, inner cylinder face one (4b), internal conical surface two (4c), inner cylinder face two (4d), internal conical surface one (4a) is identical with male cone (strobilus masculinus) (3g) cone angle of carrier block (3) with the circular conical surface (2f) of lock tube (2) with the cone angle of internal conical surface two (4c), inner cylinder face one (4b) and inner cylinder face two (4d) respectively with the face of cylinder one (2e) and the face of cylinder two (2g) bearing fit of lock tube (2), the tapped bore be connected with extension bar (9) one end is provided with in sliding sleeve (4) center, extension bar (9) other end connects draw ring (11), described stage clip (7) upper end is resisted against in the lower end counterbore of sliding sleeve (4), and lower end abutment is in the counterbore of mount pad (8), described plunger (12) upper end is also connected with inverted U-shaped suspension ring (13), and lower end is provided with concaved circular cambered surface (12a) and circular conical surface from bottom to top successively, described overcoat (1) upper surface is also provided with turnover protecting cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458548.1A CN102963503B (en) | 2012-11-15 | 2012-11-15 | A kind of plug-in type lifeboat hook device with heavily loaded unhook function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458548.1A CN102963503B (en) | 2012-11-15 | 2012-11-15 | A kind of plug-in type lifeboat hook device with heavily loaded unhook function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102963503A CN102963503A (en) | 2013-03-13 |
| CN102963503B true CN102963503B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210458548.1A Expired - Fee Related CN102963503B (en) | 2012-11-15 | 2012-11-15 | A kind of plug-in type lifeboat hook device with heavily loaded unhook function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102963503B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715561A (en) * | 2017-10-31 | 2018-02-23 | 无锡德沃精工设备有限公司 | A kind of filter of convenient cleaning |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE536617C (en) * | 1929-04-11 | 1931-10-24 | Welin Ges M B H Deutsche | Device for launching boats |
| NL7712161A (en) * | 1977-11-03 | 1979-05-07 | Davit Company B V Te Utrecht | Coupling hook for lifeboat davit - engages eye in closed position and is releasable by component moving out to rest position |
| EP0286411A1 (en) * | 1987-04-10 | 1988-10-12 | THANNER & CO. HANDELSSELSKAB A/S | Safety device for releasing loads, in particular life boats |
| EP2338784A1 (en) * | 2009-12-21 | 2011-06-29 | BG Safe S.r.l. | Lifeboat hoisting and lowering apparatus provided with a fall preventing device |
| CN102464090A (en) * | 2010-11-08 | 2012-05-23 | 蓬莱琴海舰船设备有限公司 | Flexible lifting ring |
-
2012
- 2012-11-15 CN CN201210458548.1A patent/CN102963503B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE536617C (en) * | 1929-04-11 | 1931-10-24 | Welin Ges M B H Deutsche | Device for launching boats |
| NL7712161A (en) * | 1977-11-03 | 1979-05-07 | Davit Company B V Te Utrecht | Coupling hook for lifeboat davit - engages eye in closed position and is releasable by component moving out to rest position |
| EP0286411A1 (en) * | 1987-04-10 | 1988-10-12 | THANNER & CO. HANDELSSELSKAB A/S | Safety device for releasing loads, in particular life boats |
| EP2338784A1 (en) * | 2009-12-21 | 2011-06-29 | BG Safe S.r.l. | Lifeboat hoisting and lowering apparatus provided with a fall preventing device |
| CN102464090A (en) * | 2010-11-08 | 2012-05-23 | 蓬莱琴海舰船设备有限公司 | Flexible lifting ring |
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| Publication number | Publication date |
|---|---|
| CN102963503A (en) | 2013-03-13 |
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