TWM486704U - Safety hook - Google Patents

Description

Safety hook

This creation is related to hanging utensils, more specifically a safety hook with an insulated outer body.

The safety hook is often used in high-altitude work places. The user fastens the safety rope to the waist, and then hooks the safety hook at one end of the safety rope to the support such as the wire to prevent falling.

It is known that the safety hooks are mostly made of a solid structure made of metal to prevent breakage and cause personal injury. However, the safety hook made of metal material may cause electric shock damage to the human body when it is inadvertently contacted with an uninterrupted electric wire. Therefore, the known safety hook is still in need of improvement to be improved.

In view of this, the purpose of this creation is to provide a safety hook with an insulating surface to prevent electrical conduction, thereby ensuring safety in use.

Another object of the present invention is to provide a safety hook that utilizes the color change of the insulating surface to alert the user to the degree of wear of the insulating surface.

In order to achieve the above object, the present invention provides a safety hook including a main hook, a switch and a buckle. The main hook has a hook body and a first insulating outer cover, the first insulating outer covering is wrapped around the hook body; the switch is pivotally connected to the main hook at one end, and the switch is provided with a groove, the groove has a beginning end , a turning point and a terminal, the turning point is located between the starting end and the terminal, the switch includes a second insulating outer cover; the latch is pivotally connected to the hook body and pivotable between an open position and a locked position, The latch has a connecting end, the latch includes a third insulating outer cover; and a positioning pin passes through the connecting end of the locking buckle and the groove of the switch, and the groove is Displacement between the beginning end and the terminal; when the buckle is in the open position, the positioning pin is located at the end of the groove, and when the buckle is in the blocking position, the positioning pin is located at the groove The beginning.

In one embodiment, the hook body of the main hook is made of metal, and the first insulating outer portion of the main hook is included with a first insulating layer and a second insulating layer, and the first insulating layer covers the hook body. Externally, the second insulating layer covers the first insulating layer, and the first insulating layer and the second insulating layer have different colors.

The effect of the present invention is that the user can avoid accidents when contacting the conductive material when operating the safety hook device.

100‧‧‧Safety hook

10‧‧‧Main hook

10a‧‧‧Free end

12‧‧‧ hook body

13‧‧‧First positioning hole

14‧‧‧First insulation

14a‧‧‧Bump

14b‧‧‧ end face

16‧‧‧Second insulation

16a‧‧‧ recessed hole

16b‧‧‧ surface

18‧‧‧Second positioning hole

20‧‧‧ switch

21‧‧‧ trench

21a‧‧‧ beginning

21b‧‧‧ turning point

21c‧‧‧ Terminal

22‧‧‧Second metal parts

22a‧‧‧ second side panel

24‧‧‧Second latch

26‧‧‧Second insulation outer jacket

28‧‧‧Second pivot hole

30‧‧‧Lock

31‧‧‧Connected end

31a‧‧‧Perforation

32‧‧‧First metal parts

32a‧‧‧First side panel

32b‧‧‧First pivot hole

33‧‧‧First bolt

34‧‧‧The third insulation outer jacket

36‧‧‧Block arm

36a‧‧‧Abutment

38‧‧‧Locating pin

50‧‧‧End plug

P1‧‧‧Open position

P2‧‧‧Lock position

1 is an exploded view of a safety hook of a preferred embodiment of the present invention.

Figure 2 is a perspective view of the safety hook of the above preferred embodiment of the present invention, showing the latch in the latched position.

3 is a perspective view of the safety hook of the above preferred embodiment of the present invention, showing the lock in the open position.

4 is a cross-sectional view taken along line 4-4 of FIG. 2, showing that the surface of the second insulating layer of the first insulating outer layer is flush with the end surface of the stud.

Figure 5 is a cross-sectional view taken along line 5-5 of Figure 2, showing that the second insulating member of the switch is covered with the second metal member.

Figure 6 is a cross-sectional view taken along line 6-6 of Figure 2, showing the third insulation of the buckle The first metal member is covered.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. Please refer to FIG. 1 to FIG. 6 , which is a safety hook 100 according to a preferred embodiment of the present invention. The safety hook 100 includes a main hook 10 , a switch 20 , and a buckle 30 .

Referring to FIG. 1 and FIG. 4, the main hook 10 has a hook body 12 and a first insulating outer cover. The first insulating outer cover is covered with the hook body 12. In the embodiment, the first insulation is The first insulating layer 14 and the second insulating layer 16 are covered, wherein the first insulating layer 14 covers the outside of the hook body 12, and the second insulating layer 16 covers the first insulating layer 14. The first insulating layer 14 and the second insulating layer 16 are respectively added with color materials of different colors during the manufacturing process, so that the first insulating layer 14 and the second insulating layer 16 after molding have different colors. It is to be noted that the surface of the first insulating layer 14 is integrally formed with a plurality of protrusions 14a. The second insulating layer 16 is formed with a recess 16a corresponding to each of the protrusions 14 and the protrusions 14a. The function is to abut against the cavity wall surface of the mold during the subsequent processing, so that the plastic is smoothly injected into the cavity, thereby forming the second insulation layer 16. In addition, the protrusion 14a exposed to the second insulating layer 16 allows the user to know the color of the first insulating layer 16, and the surface 16b of the second insulating layer 16 and the protruding post are formed. One end face 14b of 14a forms a smooth same plane. In addition, the main hook 10 has a second positioning hole 18 extending through the hook body 12 , the first insulating layer 14 and the second insulating layer 16 .

Referring to FIGS. 1 and 5 , the switch 20 includes a second metal member 22 , a second latch 24 , and a second insulating sheath 26 . The second metal member 22 has two second side plates 22a spaced apart from each other. The second insulating outer portion 26 covers the two second side plates 22a, and the switch 20 has a second pivot. The second hole 24 passes through the second pivot hole 28 and the second positioning hole 18, so that the switch 20 is pivotally connected to one end of the switch 20 The main hook 10. Moreover, the switch 20 further has a groove 21 extending through the insulating outer portion 26 and the two second side plates 22a. The groove 21 is L-shaped and defines a starting end 21a, a turning point 21b and a terminal end 21c.

As shown in FIG. 1 and FIG. 6 , the latch 30 includes a first metal member 32 and a third outer insulating member 34 . The first metal member 32 has two first side plates 32 a spaced apart from each other. The third insulating outer cover 34 is wrapped around the two first side plates 32a. The lock 30 further includes a first pivot hole 32b extending through the two first side plates 32a and the third insulation. The main hook 10 has a first positioning hole 13 extending through the hook body 12, the first insulating layer 14 and the second insulating layer 16. A first latch 33 passes through the first positioning hole 13 and the first pivot hole 32b to pivot the latch 30 to the hook body 12 and can be in an open position P1 (as shown in FIG. 3 ) The lock position P2 (shown in Figure 2) pivots. The third insulating outer portion 34 integrally forms a blocking arm 36 having two long side plates. One end of the blocking arm 36 is provided with an abutting portion 36a and is connected between the two elongated side plates.

One end of the latching member 30 opposite to the abutting portion 36a is a connecting end 31. The connecting end 31 is provided with a through hole 31a extending through the third insulating outer cover 34 and the two first side plates 32a. The latch 30 further includes a positioning pin 38. The positioning pin 38 extends through the through hole 31a and the groove 21 of the switch 20 to pivotally connect the switch 20 to the latch 30, and the positioning pin 38 is located. The main hook 10 is outside. The positioning pin 38 is displaced between the starting end 21a and the terminal end 21c in the groove 31 with the pivoting of the switch 20 and the latch 30. That is, when the positioning pin 38 is located at the beginning end 21a of the groove 21, the buckle 30 is located at the locking position P2, and the abutting portion 36a of the blocking arm 36 abuts against one of the free ends 10a of the main hook 10 (eg Figure 2); when the operator pushes the switch 20 with the second pin 24 as the pivoting center, the positioning pin 38 is positioned Falling at the turning point 21b; at this moment, pulling the latch 30 inward to the opening position P1 causes the positioning pin 38 to be displaced to the end portion 21c of the groove 21 (as shown in FIG. 3). The hook 100 reveals an opening through which the hook can be hooked or removed.

In this embodiment, the hook body 12, the first metal member 32 of the buckle 30 and the second metal member 22 of the switch 20 are both a solid structure made of a metal material. The first insulating outer covering, the second insulating outer covering 26 and the third insulating outer covering 34 used in the embodiment are all an insulating material, and have the characteristic of blocking the passage of current, and can block external current conduction. In addition, in order to prevent the metal hole wall portion of each of the pivot holes from being exposed, the safety hook 100 of the embodiment further includes a plurality of end plugs 50 made of an insulating material, as shown in FIG. 1 , FIG. 5 and FIG. Each end plug 50 is correspondingly disposed in the through hole 31a, the first pivot hole 32b and the second pivot hole 28 to surely block the chance of contact with the conductive object.

The safety hook 100 of the present invention has an outer layer made of an insulating material to prevent current from being transmitted to the operator via the safety hook 100 when the safety hook 100 touches the conductive object, thereby preventing the operator from being exposed to danger during work. Secondly, the present invention further includes the first insulating layer 14 and the second insulating layer 16 in two different colors due to the first insulation. When the safety hook 100 is worn due to the hooking friction, the first insulating layer 14 is worn. When the second insulating layer 16 is exposed, it means that the hook body 12 of the safety hook 100 is near the bareness, and the operator can change the safety hook 100 in time to ensure the safety of himself.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present patent.

10‧‧‧Main hook

10a‧‧‧Free end

14b‧‧‧ end face

16b‧‧‧ surface

20‧‧‧ switch

21a‧‧‧ beginning

30‧‧‧Lock

36a‧‧‧Abutment

50‧‧‧End plug

P1‧‧‧Open position

Claims (8)

A safety hook includes: a main hook having a hook body and a first insulating outer cover, the first insulating outer covering the hook body; and a switch having one end pivotally connected to the main hook, the switch a groove is provided, the groove has a starting end, a turning point and a terminal, the turning point is located between the starting end and the terminal, the outer layer of the switch is a second insulating outer cover; a latch is pivotally connected to the hook The body pivots between an open position and a locked position, the buckle has a connecting end, the outer layer of the buckle is a third insulating outer cover; and a positioning pin passes through the connection of the buckle And the groove of the switch and the displacement between the beginning of the groove and the terminal; when the buckle is in the open position, the positioning pin is located at the terminal of the groove, when the lock When the buckle is in the latched position, the positioning pin is located at the beginning of the groove. The safety hook of claim 1, wherein the hook body of the main hook is made of metal, and the first insulating outer portion of the main hook is included with a first insulating layer and a second insulating layer, the first insulating layer Covering the outside of the hook body, the second insulating layer covers the first insulating layer, and the first insulating layer and the second insulating layer have different colors. The safety hook of claim 2, wherein the first insulating layer comprises a plurality of studs, and the second insulating layer comprises a plurality of recessed holes, each of the studs penetrating into a corresponding recessed hole. The safety hook of claim 3, wherein an end surface of each of the protrusions forms a same plane with a surface of the second insulation layer. The safety hook of claim 2, wherein the buckle comprises a first metal member, the first metal member has two first side plates spaced apart from each other, and the third insulating outer portion of the buckle is covered by the second a side plate having a first pivot hole extending through the third insulating outer portion and the two first side plates, the main hook having a first positioning hole penetrating the hook body, the first insulating layer and the second An insulating layer; a first pin passes through the first positioning hole and the first pivot hole, so that the latch is pivotally connected to the main hook; and the connecting end of the latch is disposed through the third insulating outer cover And the through hole of the two first side plates, the positioning pin passes through the perforations and the groove of the switch, and the positioning pin is located outside the main hook; the third insulating outer portion is integrally formed with a blocking arm, one end of the blocking arm An abutment portion is provided that interferes with a free end of the main hook when the buckle is in the latched position. The safety hook of claim 5 includes a plurality of end plugs made of an insulating material, and the end plugs are respectively disposed in a corresponding first pivot hole and the through hole. The safety hook of claim 2, wherein the main hook has a second positioning hole extending through the hook body, the first insulating layer and the second insulating layer, the switch comprising a second metal member, the second metal a second side plate having a spacing arrangement, the second insulating outer portion of the switch is wrapped around the two second side plates, and the switch has a second pivot hole extending through the second insulating outer portion and the second second side plate a second latch passes through the second positioning hole and the second pivot hole to pivot the switch to the main hook; the groove of the switch penetrates the second insulating outer portion and the second second side plate The connecting end of the latch is provided with a through hole, the positioning pin passes through the through hole and the groove of the switch, and the positioning pin is located outside the main hook. The safety hook of claim 7 includes a plurality of end plugs made of an insulating material, and the end plugs are respectively disposed in a corresponding second pivot hole and the through hole.