CN2099215U

CN2099215U - Double-insurance safety hook

Info

Publication number: CN2099215U
Application number: CN 91217449
Authority: CN
Inventors: 黄竞业; 李春亭; 姚廷秀
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-29
Filing date: 1991-06-29
Publication date: 1992-03-18

Abstract

The utility model provides a double-insurance safety hook which is a movably connected hook and is arranged on the end head of safety belts, and the utility model is used for lifting persons and connecting objects in work high above the ground, hazardous operation and fieldwork. The utility model comprises a safety hook body 1 whose front end is provided with a bending hook head and back end is provided with a ring to connect safety belts, a safety driver 2 and a safety driver 3 which are respectively movably arranged on both sides of the safety hook body 1 by pins 4 and provided with springs 7 and spring 5, and a movable pin 6 penetrated and arranged between the pin slotted holes of the safety driver 2 and the safety driver 3. The utility model has the advantages of high safety, convenient operation for loading and unloading, light weight, convenience for carrying and beautiful appearance.

Description

Double-insurance safety hook

The utility model relates to a kind of double-safety safety hook, be to be applicable to electric power, building, installation and other high-lift operation with the flexible connection hook that uses on the safety rope belt termination, connect object, fixing tent etc. in order to connecting rope lifting personnel when it also can be used for dangerous operations such as fire-fighting, military affairs, exploration, exploration or field work.

Anti-loosing mechanism on its gib head of the employed snap hook of existing high-lift operation is too simple, poor reliability, the much more general compressing tablet made from common Steel Spring Plate that adopts compresses curved end face mode in the gib head, sometimes because spring force deficiency or compressing tablet go here and there to move to the left and right is easy to.The snap hook gib head that also has adopts the mode of axle sleeve be locked simultaneously gib head curved end and locking washer that slide up and down, cause sliding shaft sleeve sometimes may turn to, misplaces or get loose, Chang Yi causes some casualty accidents, therefore personal safety that all can not the strict guarantee operator.And former during with big (more than the 0.5 kilogram) high-lift operation of snap hook weight the back of the body send climbing extremely heavy inconvenience.

The purpose of this utility model provides a kind of double-safety safety hook, the safe coupler body that is adopted is firm tough, dress has been used and can have been prevented that gib head from getting loose and laterally go here and there the hold down gag that moves, this anti-loose hold down gag has been set up chain control mechanism in addition, implement double insurance, and making the convenient manipulation of whole snap hook switching simple and easy, gross weight alleviates.

The utility model provides a kind of double-safety safety hook, be to be applicable to high-lift operation, dangerous operation and field work lifting personnel connect the flexible connection hook on the safety rope belt termination that object uses, it is characterized in that: it is to be provided with the safe coupler body ［ 1 ］ that crooked shape gib head rear end is provided with attachment security rope band ring by its front end, and the safety clip ［ 2 ］ of spring ［ 7 ］ also is equipped with at the rear portion of using pin ［ 4 ］ to be movably arranged on safe coupler body ［ 1 ］ gib head one side betwixt, using another pin ［ 4 ］ to be movably arranged on the middle part of other side coupler body of safe coupler body ［ 1 ］ and the safety clip ［ 3 ］ of spring ［ 5 ］ to be housed betwixt and to penetrate the loose pin ［ 6 ］ that is installed between safety clip ［ 2 ］ and safety clip ［ 3 ］ cotter way hole jointly forms.Its safety clip ［ 2 ］ is the left and right sides double side wall identical grooved member of symmetry fully, its double side wall is provided with corresponding ┌ shape cotter way, the one end is provided with the bifurcation that cooperates with the crooked gib head interior edge face of safe coupler body ［ 1 ］, the other end is provided with and uses pin ［ 4 ］ to be movably connected in pin-and-hole on the safe coupler body ［ 1 ］, near the tongue piece that is provided with fixing spring ［ 7 ］ on this pin hole bottom land inner face.Its safety clip ［ 3 ］ is the left and right sides double side wall identical grooved member of symmetry fully, its double side wall is provided with corresponding pin hole and oval pin-and-hole, its pin hole is positioned at tail end and goes up pin-and-hole for using pin ［ 4 ］ to be movably connected in safe coupler body ［ 1 ］, near the tongue piece that is provided with fixing spring ［ 5 ］ on this pin hole bottom land inner face, its double side wall downside movable end can be mobile along rotation between the inner side surface of two double side walls of safe coupler body ［ 1 ］ body of rod outer side surface and safety clip ［ 2 ］.Oval pin-and-hole and safety clip ［ 2 ］ that its loose pin ［ 6 ］ penetrates on the double side wall downside movable end that is installed in safety clip ［ 3 ］ are jointly gone up in the ┌ shape cotter way of local corresponding matching, compress safe coupler body ［ loose pin ［ 6 ］ need be positioned at the tail end bottom of the short cotter way of ┌ shape cotter way under the normal state on the 1 crooked gib head interior edge face when safety clip ［ 2 ］ is in the front end bifurcation, and draw close on the lateral body of safe coupler body ［ 1 ］ when safety clip ［ 3 ］, loose pin ［ 6 ］ need enter into being turned on the intersecting point of the groove of having strong market potential by short cotter way of ┌ shape cotter way.

The utility model compared with prior art, its safe coupler body itself firm tough, installed can prevent that gib head from getting loose and laterally about the hold down gag that moves of string, also be provided with and avoid the hold down gag chain insurance institution of unclamped hook voluntarily, safety reliability with height, only needing singlehanded finger to draw in during use gently holds and can open and close easily, manipulation mounts to be unloaded all very simple and easyly, and very light in weight is about 1/5th of existing snap hook weight, and it is all very light that eminence is climbed in the braces walking.And beautiful shape.

Accompanying drawing:

Fig. 1, the total ssembly drawing of double-safety safety hook.

Fig. 2, safe coupler body ［ 1 ］ plan view.

Fig. 3, safe coupler body ［ 1 ］ side view.

Fig. 4, safety clip ［ 2 ］ worm's eye view.

Fig. 5, safety clip ［ 2 ］ plan view.

Fig. 6, safety clip ［ 3 ］ worm's eye view.

Fig. 7, safety clip ［ 3 ］ plan view.

Component title in the figure:

1, safe coupler body 2, safety clip 3, safety clip 4, pin 5, spring 6, loose pin 7, spring

Embodiment: accompanying drawing 1 is depicted as the total ssembly drawing of double-safety safety hook, accompanying drawing 2,3 is looked and side view for the master of safe coupler body ［ 1 ］, it is to use the high tensile aluminium alloy integral die to make, its length 130 of safe coupler body ［ 1 ］, thick 7.6 gib heads of body that the high-lift operation personnel use are provided with stiffened edge place total thickness 10.5, front end is provided with the semi-circular curvature shape gib head of circle cylindrical R25 in the R8.5 off-centre, the rear end is provided with φ 16 circular holes, also make 2 φ 4.1 pin-and-holes on the body, its whole tensile strength is more than 1200 kilograms.Safety clip ［ 3 ］ shown in safety clip ［ 2 ］ shown in the accompanying drawing 4,5 and the accompanying drawing 6,7 uses thick 1.5 steel plate punching presses to make respectively, the surface all through rust cleaning chromium plating to keep smooth and beautiful appearance.Pin hole on it is φ 4.2, wide 4.4 length 5.9 of elliptical aperture,

Shape slotted eye groove width 5.Safety clip ［ 2 ］ two side middle groove wider width is big, swings therebetween to hold safety clip ［ 3 ］ downside protruding terminus.Between two safety clips ［ 2 ］, ［ 3 ］ and safe coupler body ［ 1 ］ lateral body, be separately installed with the pressure spring ［ 7 ］ and pressure spring ［ 5 ］ that roll with 1 millimeter Spring Steel Wire of φ 0.8～φ.Use round pin ［ 4 ］ the two ends rivet clasp of two φ 4 diameters that safety clip ［ 2 ］ and safety clip ［ 3 ］ are installed in respectively on the safe coupler body ［ 1 ］, make and to carry out suitable angle rotation along the round pin ［ 4 ］ that it flexibly connected for the center.Safety clip ［ 2 ］ front end bifurcation matches with safe coupler body ［ 1 ］ gib head curved end inner face, it remains at and compresses fit-state because of the elastic force effect that is subjected to spring ［ 7 ］, unless the outside has active force to force safety clip ［ 2 ］ can throw off during with holddown spring ［ 7 ］ to safety coupler body ［ 1 ］ medial movement in addition.But penetrate its two ends that are installed between safety clip ［ 2 ］ ┌ shape groove and the oval pin-and-hole of safety clip ［ 3 ］ jointly has φ 4 loose pins ［ 6 ］ than major diameter fixing pin head to rest under normal conditions on the short slotted eye tail end bottom position of ┌ shape groove bottom always, hindered any rotation of safety clip ［ 2 ］, so anti-loose performance is fool proof reliable to the gib head inboard.Safety clip ［ 3 ］ is because the elastic force effect of the spring ［ 5 ］ in the groove often is in open configuration laterally, safety clip ［ 3 ］ spring ［ 5 ］ pressurized when one hand is gently held with the finger gathering, safety clip ［ 3 ］ rotates till safe coupler body ［ 1 ］ outside coupler body that reclines along pin ［ 4 ］, loose pin ［ 6 ］ also simultaneously moves and enters into being turned on the intersecting point of the groove of having strong market potential by short cotter way of ┌ shape groove to the gib head sideway swivel, move promptly in this moment safety clip ［ 2 ］ and no longer hindered, safety clip ［ 2 ］ can rotate and make the groove of having strong market potential in the ┌ shape groove on it to slide to the inside along loose pin ［ 6 ］ and drive hook swimmingly along the pin ［ 4 ］ that flexibly connects when drawing finger in and inwardly press.The snap hook of this kind dual fail-safe has the safety reliability of height, and light and handy convenient, simple and easy, the beautiful shape of manipulation.If need be used in can design when lifting connects object large-scale height weight and must be anti-loose adopts big specification to have the double-safety safety hook of higher tensile strength.

Claims

1, a kind of double-safety safety hook, be to be applicable to high-lift operation, dangerous operation and field work lifting personnel connect the flexible connection hook on the safety rope belt termination that object uses, it is characterized in that: it is to be provided with the safe coupler body [1] that crooked shape gib head rear end is provided with attachment security rope band ring by its front end, and the safety clip [2] of spring [7] also is equipped with at the rear portion of using pin [4] to be movably arranged on safe coupler body [1] gib head one side betwixt, using another pin [4] to be movably arranged on the middle part of other side coupler body of safe coupler body [1] and the safety clip [3] of spring [5] to be housed betwixt and to penetrate the loose pin [6] that is installed between safety clip [2] and safety clip [3] cotter way hole jointly forms.

2, double-safety safety hook according to claim 1, it is characterized in that described safety clip ［ 2 ］ is the symmetrical identical fully grooved member of left and right sides double side wall, its double side wall is provided with corresponding ┌ shape cotter way, the one end is provided with the bifurcation that cooperates with the crooked gib head interior edge face of safe coupler body ［ 1 ］, the other end is provided with and uses pin ［ 4 ］ to be movably connected in pin-and-hole on the safe coupler body ［ 1 ］, near the tongue piece that is provided with fixing spring ［ 7 ］ on this pin hole bottom land inner face.

3, double-safety safety hook according to claim 1, it is characterized in that described safety clip ［ 3 ］ is the symmetrical identical fully grooved member of left and right sides double side wall, its double side wall is provided with corresponding pin hole and oval pin-and-hole, its pin hole is positioned at tail end and goes up pin-and-hole for using pin ［ 4 ］ to be movably connected in safe coupler body ［ 1 ］, near the tongue piece that is provided with fixing spring ［ 5 ］ on this pin hole bottom land inner face, its double side wall downside movable end can be mobile along rotation between the inner side surface of two double side walls of safe coupler body ［ 1 ］ body of rod outer side surface and safety clip ［ 2 ］.

4, double-safety safety hook according to claim 1, it is characterized in that described loose pin ［ 6 ］ penetrates oval pin-and-hole on the double side wall downside movable end that is installed in safety clip ［ 3 ］ jointly and safety clip ［ 2 ］ is gone up in the ┌ shape cotter way of local corresponding matching, compress safe coupler body ［ loose pin ［ 6 ］ need be positioned at the tail end bottom of the short cotter way of ┌ shape cotter way under the normal state on the 1 crooked gib head interior edge face when safety clip ［ 2 ］ is in the front end bifurcation, and draw close on the lateral body of safe coupler body ［ 1 ］ when safety clip ［ 3 ］, loose pin ［ 6 ］ need enter into being turned on the intersecting point of the groove of having strong market potential by short cotter way of ┌ shape cotter way.