CN201347322Y

CN201347322Y - Safe hook

Info

Publication number: CN201347322Y
Application number: CNU2009200010775U
Authority: CN
Inventors: 洪荣德
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2009-11-18
Anticipated expiration: 2019-01-09

Abstract

A safe hook comprises main body, a safe fastening unit mounted on the main body and a snap unit mounted on the main body. A connection part of the main body comprises a stopper, and the safe fastening unit comprises a safe fastener pivoted on the connection part and a first elasticity piece and the safe fastener comprises a bunting surface corresponding with the stopper and a stopping part and the snap unit comprises a snap piece and a second elasticity piece and the snap piece comprises a position-limitation part corresponding with the stopping part. The snap piece is subjected to the external force and the acting force can be dispersed using the cooperation of the stopping surface and the stopper and the structure strength and the stress are increased.

Description

Safety hook

Technical field

The utility model relates to a kind of suspension hook, particularly relates to a kind of safety hook of hanging weight that is used to collude.

Background technology

As shown in Figure 1, existing a kind of safety hook comprises a body 1 and is installed in the safety button unit 2 of this body 1, a clip unit 3.This is detained unit 2 safely and has a safety fastener 201 and first torsion spring 202 that these safety fastener 201 elastic force are provided, and this safety fastener 201 has the articulated section 203 and the retainer 204 of being located at these articulated section 203 1 sides that are hubbed on this body 1.This clip unit 3 has the holding piece 301 and second torsion spring 302 that these holding piece 301 elastic force are provided that are hubbed on this body 1, and this holding piece 301 has one to limiting section 303 that should retainer 204.

Under normal condition, this safety fastener 201 is subjected to the elastic force effect of this first torsion spring 202, and the effect of this retainer 204 and limiting section 303 mutual inlay cards, remain on a snap close position, and this holding piece 301 also is subjected to the elastic force effect of this second torsion spring 302, remain on a opening 101 osed top detent positions with this body 1, under this state, when external force acts on this holding piece 301, utilizing limiting section 303 to support ends at this retainer 204, prevent that this holding piece 301 is unlocked, and reaches the purpose of safety interlocking.When the inlay card of pushing this safety fastener 201 and this retainer 204 being broken away from this limiting section 303, this holding piece 301 can be operable to and make this opening 101 be open, manipulates purpose and reach.

Though this suspension hook can be avoided this holding piece 301 to be subjected to external force to do the time spent and make this opening 101 open, and reached the purpose of safe handling, but, when this holding piece 301 is subjected to bigger application force, then application force can be passed to this articulated section 203 by this limiting section 303, retainer 204, make to be subjected to shearing action, so on using safe misgivings are arranged in order to a latch 4 that wears this articulated section 203 and this body 1.

Summary of the invention

The purpose of this utility model provides and a kind ofly promotes structural strength, can improve stressed and has the safety hook of higher-security.

For achieving the above object, safety hook of the present utility model comprises a body, a safety button unit and a clip unit that is installed in this body that is installed in this body.This body has hook portion and connecting part between between this location ring portion and this hook portion that a location ring portion, and this location ring portion are oppositely arranged, this hook portion is the U type, and has a distal portion, produce an opening between the ring portion of this distal portion and this location, this connecting part has a medial margin with respect to this opening, lateral border opposite with this medial margin and one and levels off to the block of this lateral border.This is detained the unit safely a safety fastener and first elastic component that provides this safety fastener perseverance to be held against and to be positioned on this block that is hubbed on this connecting part is provided, this safety fastener has an articulated section that is hubbed on this connecting part, the stop surface of an opposite setting and a retainer of being located at this articulated section one side with this articulated section, this safety fastener is resisted against a snap close position of this block by this stop surface, be operable to and make the releasing position of this stop surface away from this block, between the stop surface of snap close position and this block, have a gap, have a spacing between this retainer and the medial margin greater than this gap.The holding piece and second elastic component that provides this holding piece perseverance to be held against and to be positioned on this distal portion that are hubbed on this connecting part are provided in this clip unit, this holding piece has a pivot part and one and is located at this pivot part one side and the block limiting section at this retainer, this safety fastener provides this holding piece to be positioned at a detent position with this closure of openings in this snap close position, this safety fastener is removed the position in this, this retainer breaks away from the block to this limiting section, makes this holding piece be operable to by detent position and makes this opening be open release position.

The beneficial effects of the utility model are: this safety fastener is in the snap close position and this holding piece when being positioned at detent position, utilize cooperating of this stop surface and this block, make when this holding piece is subjected to application force, this articulated section and the common dissipation of ferees of this stop surface meeting, and it is stressed that this holding piece is improved.

Description of drawings

Fig. 1 is the combination section of existing a kind of safety hook;

Fig. 2 is the three-dimensional combination figure of a preferred embodiment of the utility model safety hook;

Fig. 3 is the combination section of this preferred embodiment, illustrates that a safety fastener is positioned at a snap close position, and a holding piece is positioned at a detent position;

Fig. 4 is the cross-sectional schematic of being got along the straight line IV-IV among Fig. 3;

Fig. 5 is the holding piece block diagram of this preferred embodiment;

Fig. 6 is the operation signal of this preferred embodiment, illustrates that this safety fastener becomes one to remove the position by the snap close position operation, and this holding piece is operable to a release position by detent position.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is elaborated:

As shown in Figures 2 and 3, the preferred embodiment of the utility model safety hook comprises a body 10 and is installed in one of this body 10 safety button unit 20, a clip unit 30.

This body 10 has the location ring portion 11, of a loop shaped and hook portion 12 that this location ring portion 11 is oppositely arranged and one connecting part 13 between 12 of this location ring portion 11 and this hook portions.This hook portion 12 is the U type, and have affixed position 121 and and these the 121 opposing ends positions 122, affixed position that link with this connecting part 13, produce an opening 14 between this distal portion 122 and this location ring portion 11, this distal portion 122 has a draw-in groove 123.This connecting part 13 has a medial margin 131 with respect to this opening 14, a lateral border 132 opposite with this medial margin 131, a sinking space 133 that is arranged with in this lateral border 132, this lateral border 132 of vicinity and be arranged on first pivot 134 of these sinking space 133 bottom sides, a block 135 that is arranged on these sinking space 133 top side edge and this medial margin 131 of vicinity and be arranged on second pivot 136 of these location ring portion 11 1 sides, this block 135 is opposite two side faces by this connecting part 13 and protrudes and be block (see figure 4), and has one and be connected with this first lateral margin 137 corresponding to first lateral margin 137 of this medial margin 131 and one and be the L type and adjacent to second lateral margin 138 of this sinking space 133.

This is detained unit 20 safely and has one to should sinking space 133 and safety fastener 21 and first elastic component 22 that provides these safety fastener 21 perseverances to be held against and to be positioned on this block 135 of this first pivot 134 be provided.This safety fastener 21 has an articulated section that is hubbed on this first pivot 134 211, one and the operative end 211 ' of these articulated section 211 opposite settings, a groove 212 that is arranged on this operative end 211 ' and a retainer 213 of being located at these articulated section 211 1 sides, the profile of this groove 212 is corresponding to the shape of this block 135, and is connected the auxiliary stop surface 215 that is the L type with this stop surface 214 by a stop surface 214 relative with this first lateral margin 137 and one and defines jointly and form.This retainer 213 is the pin rod shape.

The holding piece 31 and second elastic component 32 that provides these holding piece 31 perseverances to be held against and to be positioned on this distal portion 122 that are hubbed on this second pivot 136 are provided in this clip unit 30.This holding piece 31 has the movable end 312 of a pivot part that is hubbed on this second pivot 136 311, and these pivot part 311 opposite settings and one and is located at these pivot part 311 1 sides and the block limiting section 313 at this retainer 213, this movable end 312 has conduit 314 (Fig. 5 is consulted in cooperation) that this distal portion 122 of a confession wears and one to should conduit 314 and can buckle into the interlocking portion 315 of this draw-in groove 123, this interlocking portion 315 is the pin rod shape, and this limiting section 313 is circular arc shrinkage pool shape.

Again as shown in Figures 2 and 3, under normal condition, this safety fastener 21 of detaining unit 20 safely is subjected to the elastic force effect of this first elastic component 22 to be positioned at a snap close position, first lateral margin 137 of these stop surface 214 these blocks 135 against, have a gap S1 between this stop surface 214 and this first lateral margin 137, and have a interval S 2 between this retainer 213 and the medial margin 131 greater than this gap S1.And the holding piece 31 of this clip unit 30 is subjected to the elastic force effect of this second elastic component 32, can be positioned at one with these opening 14 osed top detent positions.At this moment, this distal portion 122 is passed this conduit 314, and makes these interlocking portion 315 buckles in this draw-in groove 123.

If when having external force to impose on these holding piece 31 outsides, utilize this retainer 213 to be blocked in this locating part 313 1 sides, this holding piece 31 can not produce pivot, can produce safe effect.

As shown in Figure 6, when desiring to hang weight, and the operator pushes the operative end 211 ' of this safety fastener 21 earlier, utilize being provided with of this sinking space 133 to allow this safety fastener 21 to produce pivot by towards this medial margin 131 direction being set corresponding to this lateral border 132, and become one to remove the position by this snap close position operation, this retainer 213 of interlock breaks away from stopping this limiting section 313, push the movable end 312 of this holding piece 31 again, make this interlocking portion 315 break away from, make this opening 14 be open release position and be operable to one by this detent position from this distal portion 122.

Again as shown in Figure 3, when this safety fastener 21 of detaining unit 20 safely is positioned at the snap close position, and the holding piece 31 of this clip unit 30 is positioned at detent position, if when having external force to impose on this holding piece 31, after the application of force is passed to this retainer 213, can be dispersed to this articulated section 211 and first pivot, 134 articulated sections again, and this stop surface 214 and first lateral margin 137 are against locating, and utilize gap S1 between this stop surface 214 and this first lateral margin 137 less than the interval S 2 between this retainer 213 and the medial margin 131, so when causing this gap S1 to disappear being subjected to the external force effect, this retainer 213 still can not touch medial margin 131, can avoid this retainer 213 to be subjected to shearing action.Even when external force continues and aggravate to act on this holding piece 31, and when causing this holding piece 31 to produce great displacement stress, then be resisted against this second lateral margin 138 again by this auxiliary stop surface 215, further dispersive stress, therefore, this safety fastener 21 utilizes this articulated section 211 and first pivot, 134 articulated sections, and this stop surface 214 and first lateral margin 137 are against locating to produce dissipation of ferees, not only can promote the single-piece structural strength, and can improve stressedly, safety in utilization is higher, in addition, structure of the present utility model is quite simple, and it is also quite easy to make assembly, can reach the purpose of this utility model really.

Claims

1, a kind of safety hook comprises a body, a safety button unit and a clip unit that is installed in this body that is installed in this body; This safety hook is characterised in that:

This body, have hook portion and the connecting part between between this location ring portion and this hook portion that a location ring portion, one and this location ring portion are oppositely arranged, this hook portion is the U type, and has a distal portion, produce an opening between the ring portion of this distal portion and this location, this connecting part has a medial margin with respect to this opening, lateral border opposite with this medial margin and one and levels off to the block of this lateral border;

This detains the unit safely, a safety fastener and first elastic component that provides this safety fastener perseverance to be held against and to be positioned on this block that is hubbed on this connecting part is provided, this safety fastener has an articulated section that is hubbed on this connecting part, the stop surface of an opposite setting and a retainer of being located at this articulated section one side with this articulated section, this safety fastener levels off to a snap close position of this block by this stop surface, be operable to and make the releasing position of this stop surface away from this block, between the stop surface of snap close position and this block, have a gap, have a spacing between this retainer and the medial margin greater than this gap;

This clip unit, a holding piece and second elastic component that provides this holding piece perseverance to be held against the distal portion that is positioned at this hook portion that is hubbed on this connecting part is provided, this holding piece has a pivot part and one and is located at this pivot part one side and the block limiting section at this retainer, this safety fastener provides this holding piece to be positioned at a detent position with this closure of openings in this snap close position, this safety fastener is removed the position in this, this retainer breaks away from the block to this limiting section, makes this holding piece be operable to by detent position and makes this opening be open release position.

2, safety hook as claimed in claim 1, it is characterized in that: this safety fastener of detaining the unit safely also has one and is the groove of opposite setting with this articulated section, the profile of this groove is corresponding to the shape of this block, and this stop surface and one are connected the auxiliary stop surface that is the L type with this stop surface and produce this groove jointly, and the block of this body has first lateral margin and second lateral margin with respect to this auxiliary stop surface with respect to this stop surface.

3, safety hook as claimed in claim 2 is characterized in that: this retainer of detaining the unit safely is the pin rod shape, and the limiting section of this clip unit is circular arc shrinkage pool shape.

4, safety hook as claimed in claim 3, it is characterized in that: the distal portion of this body also has a draw-in groove, the holding piece of this clip unit has the movable end of an opposite setting with this pivot part, this movable end has conduit that this distal portion of confession wears and one to should conduit and buckle into the interlocking portion of this draw-in groove, and this interlocking portion is the pin rod shape.