CN202579815U

CN202579815U - Safety hook

Info

Publication number: CN202579815U
Application number: CN 201220188373
Authority: CN
Inventors: 林佩娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-12-05
Anticipated expiration: 2022-04-27

Abstract

The utility model discloses a safety hook, which comprises a hook body with an opening, wherein a revolving ring is arranged at one end which is opposite to the opening; an anti-loosening bolt is hinged inside the hook body; the hook body is provided with a safety lock for keeping the anti-loosening bolt slide, and a spring supported between the hook body and the anti-loosening bolt; a bolt arm of the anti-loosening bolt is used for enclosing the upper part of the opening under the action of the elastic force of the spring; a gap is formed below the bolt arm; and an enclosed ring is defined by the gap and the lower part of the opening, so that convenience is brought to locking with a buckling ring of a connecting object. When the safety lock slides to a locking position, a bolt locking function can be realized for the anti-loosening bolt, and the accident of falling of the buckling ring from the hook body caused by openness of the opening due to wrong operation of the anti-loosening bolt is avoided; and when the safety lock slides to an unlocking position, the anti-loosening bolt is allowed to be operated, the bolt arm swings outwards and leaves the opening, and the buckling ring can be detached from the hook body conveniently.

Description

Snap hook

Technical field

The utility model relates to a kind of snap hook, refers to a kind of snap hook that possesses safety lock especially.

Background technique

Fig. 1 shows the section of a kind of swivel hook (Swivel Snap Hook) 80.This swivel hook 80 comprises a coupler body 81, and one be held in the anticreep door bolt 82 that coupler body 81 slides, and an end of this coupler body 81 forms hook portion 85, in order to hook connecting object 70, and the clasp 71 on the article such as Pet neck ring, pet safe band for example; The other end of coupler body 81 forms an axle journal 86, supplies a change 83 is installed, and this change 83 is in order to connect ribbon 90 or homologue, for example rope, a chain etc.The spring 84 that between coupler body 81 and anticreep door bolt 82, also has a use compressive force to have an effect; With its elastic force of mat anticreep door bolt 82 is remained on the position of sealing hook portion 85, make hook portion 85 and anticreep door bolt 82 define the ring 87 of a sealing, so; All linked with one another with clasp 71, reach the connection purpose.

Fig. 2 is another kind of swivel hook 80a commonly used.This swivel hook 80a is the same with above-mentioned swivel hook 80; Also be by the coupler body 81a with hook portion 85a and axle journal 86a, anticreep door bolt 82a, the change 83a that is installed on axle journal 86a rotation in order to open and close hook portion 85a; And the spring 84a that is supported between coupler body 81a and the anticreep door bolt 82a combines, and both difference is that this anticreep door bolt 82a is articulated in coupler body 81a swing; The torque spring of spring 84a for using warping force to have an effect; Remained on the position of sealing hook portion 85a by the elastic force of spring 84a when anticreep door bolt 82a is flat, all linked with one another with the ring 87a and the clasp 71 that define a sealing, in addition; Two kinds of swivel hooks 80 are roughly the same on 26S Proteasome Structure and Function with 80a, repeat no more.

Again, anticreep door bolt 82 and the 82a of said

swivel hook

80 and 80a has an outstanding laterally bolt handle 88 and a 88a, easy-to-operat anticreep door bolt 82 and 82a.Yet this

outstanding bolt handle

88 and 88a be probably by clasp 71 or the malfunction of other external force institute, and anticreep door bolt 82 is opened with 82a automatically, lets

hook portion

85 and 85a open wide, and causes clasp 71 to come off and lose interconnect function, when serious, also possibly lead to accident.For example, the dog of originally being fastened is popped out because of this accidental probably, and the result takes place to suffer car to wound, even matters of regret such as the passerbys that bites.

The model utility content

The purpose of the utility model is to provide a kind of snap hook with breech lock function, can avoid the anticreep door bolt to be opened by malfunction, guarantees safety.

The concrete snap hook of realizing the utility model comprises:

One coupler body, have one be formed at an end opening, be arranged at inside and link up the door bolt chamber of this opening, and one be formed at a side groove;

One anticreep door bolt; It is indoor and be hinged with this coupler body to be installed on this door bolt; It comprises one extend to this upper opening portion the door bolt arm, and one have a locking cave and a release cave at least chute, and the below of this door bolt arm has a breach; The bottom of this breach and opening defines the ring of a sealing, the outside formation one of this chute and the notch of this notch aligns;

One spring is supported between this coupler body and the anticreep door bolt, makes this door bolt arm seal the top of this opening at ordinary times with its elastic force of mat; And

One safety lock comprises an operating lever and a spring hitch, and the chute that this spring hitch inserts this anticreep door bolt slides, and has at least one trip;

When this safety lock slid into this trip and embeds the position in this locking cave, this operating lever submerged in this groove and the notch, remained on blocking and this anticreep fastened with a bolt or latch; When this safety lock slides into the position in this this release cave of trip embedding; This operating lever withdraws from this groove and notch, and removes the breech lock function to this anticreep door bolt, allows this anticreep door bolt to be operated and outwards swing; Make this door bolt arm leave the opening of this coupler body, let this opening be able to open wide.

Said coupler body comprises one again and is formed at the axle journal of said opening opposite end, and has a change and be installed on said axle journal and rotate.

Said anticreep door bolt comprises a pair of release cave and a pair of locking cave is symmetricly set in respectively on two limit walls of said chute; Said spring hitch forms for extending from the inboard of said operating lever; Half-and-half separately have elasticity simultaneously, said trip is by being formed from the both sides of said spring hitch are outwards outstanding.

Said anticreep door bolt comprise again one be formed at said door bolt arm top recess.

The effect that swivel hook is commonly used in the utility model contrast is to have safety lock and can lock the anticreep door bolt, and the possibility that the anticreep door bolt is not opened by malfunction prevents the connecting object accidental, significantly improves the Security of swivel hook.

Cooperate the graphic specific embodiment explanation can be clear fully as for the technology contents of the utility model and other purpose and characteristics with reference to following.

Description of drawings

Fig. 1 is a sectional drawing of commonly using swivel hook.

Fig. 2 commonly uses the sectional drawing of swivel hook for another.

Fig. 3 is in the External view of blocking for the utility model.

Fig. 4 is the element exploded view of the utility model.

Fig. 5 is in the sectional drawing of blocking for the utility model.

Fig. 6 is in the sectional drawing of released state for the utility model.

Reference character

23 axle journals, 24 grooves, 25 fasteners, 26 mounting holes, 27 bottoms, 10 snap hooks, 20 coupler bodies, 21 openings

door bolt chambers

22,28 recesses, 30 anticreeps door bolt, 31 door bolt arm 32 pilot hole 33 breach, 34 ring 35 chutes, 36 locking caves, 37 release caves, 38 notches, 39 empennages, 40 springs, 50 safety locks, 51 operating levers, 52 spring hitchs, 53 trips, 60 changes, 61 axis holes, 70 connecting objects, 71 clasps 80; 80a swivel hook 81; 81a coupler body 82; 82a anticreep door bolt 83; 83a change 84; 84a spring 85; 85a hook portion 86; 86a axle journal 87; 87a ring 88; 88a bolt handle 90 ribbons

Embodiment

Fig. 3 is the External view that the utility model snap hook 10 is in blocking, and Fig. 4 is its element decomposing state figure, and Fig. 5 is its sectional drawing, can supply to explain the technology contents of the utility model.This snap hook 10 includes coupler body 20, anticreep door bolt 30, spring 40, safety lock 50 and change 60.Wherein:

Coupler body 20 comprises that one is formed at the opening 21 of front end, the passage that connects coupler bodies 20 and take off as above-mentioned clasp 71 from coupler body 20, and one be arranged on inside and the door bolt chamber 22 that communicates with opening 21, in order to admit anticreep door bolt 30.Coupler body 20 also have one be formed at opening 21 opposite ends axle journal 23, in order to change 60 to be installed, and one be formed at a side groove 24, state after its effect is waited until, showed for the time being.Again, coupler body 20 comprise one be arranged on opening 21 belows mounting hole 26, supply to install a fastener 25, rivet etc. for example is to be articulated in coupler body 20 with anticreep door bolt 30.

Anticreep door bolt 30; Be arranged in the door bolt chamber 22 of coupler body 20, have one with the mounting hole 26 of coupler body 20 pilot hole 32 at same axis, after the front end of above-mentioned fastener 25 passes mounting hole 26 and pilot hole 32; Hammering circle into shape with hand hammer or riveting machine rivets tightly; So, anticreep door bolt 30 is articulated in coupler body 20, making anticreep door bolt 30 can be that fulcrum prop up and is held in coupler body 20 and swings with fastener 25.Anticreep door bolt 30 comprises that also a door bolt arm 31 extends to opening 21 tops of coupler body 20, to open and close opening 21 along with the swing of anticreep door bolt 30.Below door bolt arm 31 and also have a breach 33 between the pilot hole 32, this breach 33 and the bottom 27 of opening 21 define the ring 34 of a sealing jointly, so that all linked with one another and reach interconnect function with above-mentioned clasp 71.Again, anticreep door bolt 30 comprises a chute 35, has a pair of locking cave 36 in the groove and is symmetricly set in respectively on two limit walls of chute 35 with a pair of release cave 37, supplies safety lock 50 is remained on the usefulness that lock-bit is conciliate in the locking position.Said chute 35 can as shown in the figurely be formed at the inside of anticreep door bolt 30, but also can result from the surface of anticreep door bolt 30.Anticreep door bolt 30 further includes the notch 38 that is arranged on chute 35 outsides, and this notch 38 aligns with the groove 24 of coupler body 20, to admit the operating lever 51 of safety lock 50.

Spring 40 is the elastic elements that make anticreep door bolt 30 automatic involution original positions.One end of this spring 40 heads on and is formed at the terminal empennage 39 of anticreep door bolt 30, and the other end heads on the inwall of door bolt chamber 22 and is tensioning state, is sealing the top of opening 21 when making door bolt arm 31 flat with its elastic force of mat.In the embodiment of accompanying drawing, the pressure spring that spring 40 adopts compressive force to have an effect, other equivalent elastic element also can adopt, not the restriction of spring by compression.

Safety lock 50, the chute 35 that remains in anticreep door bolt 30 slides, with fixing, release anticreep door bolt 30.This safety lock 50 comprises an operating lever 51, and a spring hitch 52.Operating lever 51 supplies the usefulness of finger mobile security lock 50, conveniently is used for operating anticreep door bolt 30 simultaneously.Spring hitch 52 is one to extend the board member that inserts chute 35 slips from the inboard of operating lever 51; And 52 pairs half of spring hitchs separately have elasticity; Respectively there is an outside outstanding trip 53 on both sides simultaneously, can agree with chute 35 interior locking cave 36 or release caves 37 along with the slip of safety lock 50, so; Safety lock 50 is remained on the locking position or separates lock-bit, and then forbid or allow anticreep to fasten 30 with a bolt or latch being operated.In the embodiment of accompanying drawing,, a trip 53, a locking cave 36 and a release cave 37 can only be set also though trip 53, locking cave 36 and release cave 37 all are to be symmetrical set face-to-face.

Change 60, the axle journal 23 with an axis hole 61 and coupler body 20 be for being rotatably assorted, and makes change 60 can be incorporated into coupler body 20 and around axle journal 23 rotations freely, to connect above-mentioned ribbon 90 or homologue, and for example rope, chain etc.

As shown in Figure 5; According to the utility model, when safety lock 50 inwards slides, when making its trip 53 embed locking caves 36; Operating lever 51 submerges in the notch 38 of groove 24 and anticreep door bolt 30 of coupler body 20 simultaneously; Go into the result of coupler body 20 and anticreep door bolt 30 has been produced the breech lock function through these operating lever 51 Shen, make anticreep door bolt 30 remain on blocking, forbid that anticreep door bolt 30 is operated under the situation that safety lock 50 is not opened; Anticreep door bolt 30 is reduced to minimum by the possibility of malfunction, prevent above-mentioned clasp 70 accidental that connected.

As shown in Figure 6; When safety lock 50 slides outward, when making its trip 53 embed release caves 37, operating lever 51 also withdraws from groove 24 and notch 38 in the lump; So removed breech lock function to anticreep door bolt 30; And permission makes the opening 21 of fastening arm 31 outside swings with a bolt or latch and leaving coupler body 20 through operating lever 51 or via the recess that is formed at door bolt arm 31 tops 28 operation anticreeps door bolts 30, lets opening 21 be able to open wide and take off above-mentioned clasp 70.

Certainly, the foregoing description can be under the scope that does not break away from the utility model in addition some variations, so above explanation comprises and accompanying drawing shown in whole items should be regarded as exemplary, but not in order to limit the claim of the utility model.

Claims

1. a snap hook is characterized in that, comprises:

2. snap hook as claimed in claim 1 is characterized in that, said coupler body comprises one again and is formed at the axle journal of said opening opposite end, and has a change and be installed on said axle journal and rotate.

3. snap hook as claimed in claim 1; It is characterized in that; Said anticreep door bolt comprises a pair of release cave and a pair of locking cave is symmetricly set in respectively on two limit walls of said chute; Said spring hitch forms for extending from the inboard of said operating lever, half-and-half separately has elasticity simultaneously, and said trip is by being formed from the both sides of said spring hitch are outwards outstanding.

4. snap hook as claimed in claim 1 is characterized in that, said anticreep door bolt comprise again one be formed at said door bolt arm top recess.