TWM598353U - Improved structure of safety hook buckle - Google Patents

Abstract

An improved safety hook structure, comprising: a hook body, a lock lever, an elastic abutment piece, and a shaft; it is characterized in that the abutment block of the bearing end of the hook body is provided with a chamfered surface to make the The chamfered surface increases the sleeve width, and the chamfered surface protrudes toward the inner edge of the hook body to define a receiving surface, and connects the side joint surfaces to form a U-shaped platform state; and the inner edge of the notch at the clamping end It also forms a rear abutment surface, which forms a U-shaped platform state with the bottom surface of each side, and is used to abut against the U-shaped platform defined by the hook body to increase the abutment area; thereby, providing a safe The improvement of the hook structure, especially a kind of safety hook, which increases the movement space of the hook, and increases the bearing area of the hook during fastening to increase the bearing force.

Description

Improved safety hook structure

This creation is related to a structural improvement of a safety hook, especially a safety hook, Increase the movement space of the hook, and increase the bearing area of the hook when buckling, and enhance the function of bearing force.

Button, safety hook, also known as hook and loop, also called safety buckle, in general daily life, The use of safety hooks can often be seen, and in environments that require hanging or fall prevention, such as mountaineering, rock climbing, construction and hanging operations, etc., the ropes are connected to fixed points through the hooks to prevent objects or people from falling , Through the hooks and ropes to achieve the function of anti-falling, and the general shackles used in the early mountaineering are made of steel or iron. The steel is characterized by sturdiness and durability, with high bearing capacity, but the disadvantage is the texture. Heavy, it will increase the user’s weight load and cannot be carried in large quantities. Later, this kind of shackles was gradually replaced by aluminum alloy shackles. Aluminum alloy shackles are light and strong. They are the most versatile and most incapable of climbing equipment. The replaced equipment is mainly used for connecting ropes and intermediate fulcrums; As a shackle to protect safety, because the climbing rope can withstand a pulling force of at least 1200kg, and because the rope brakes and rubs on the shackle, the shackle must bear 1.33 times the weight of the rope during the fall, so at least it will It needs to withstand a pulling force of 1500kg, and the normal pulling force of aluminum alloy shackles is 2000~ 3000kg is enough to ensure the safety of users, and the buckle has different types according to the use needs and improvements, such as O-shaped buckle, D-shaped buckle or variable D-shaped buckle, and O-shaped buckle is in the ring The space is large, and several equipment can be hung without being crowded. However, the opening degree of the gate is limited by the appearance and small, and the D-shaped buckle has greater bearing capacity and is lighter than the O-shaped buckle of the same size. In addition, the opening and closing of the gate design can make it easier to mount equipment and ensure the device; secondly, the deformed D-shaped buckle is narrowed at one end in order to reduce the weight, so that there are relatively few equipment that can be hung, but the gate is opened. It is larger than the D-shaped buckle, and can hook up the equipment and secure the device more easily.

However, as far as the above-mentioned conventional knowledge is concerned, the general buckle in use is subject to the large opening of the gate The small size leads to the need to choose a D-shaped or modified D-shaped buckle with a larger gate opening, but the loadable space inside the buckle is relatively reduced, and the O-shaped buckle is compared with D-shaped and modified D-shaped in terms of bearing weight The buckle is relatively small, so there is no O-shaped buckle that can maintain the integrity of the internal space while maintaining a larger opening space and endurance of the gate. This is a major drawback and needs to be improved.

This creation provides an improved safety hook structure, which includes: A hook body is bent in a strip shape into a C shape and forms an opening. One end of the opening forms a connecting end, and the other end forms an abutting end; the connecting end is provided with an oblique recessed abutment A port is provided, and a through hole is provided at the side end; and the bearing end is provided with an abutting block, which is wider than the width of the bearing end to form two side joints; A lock lever is provided with a connecting end and a locking end; the connecting end is provided with a pivoting groove, which is set at the connecting end of the hook body, and a receiving hole is provided in the pivoting groove , And the side end of the connecting end is provided with a connecting hole penetrating the side edge of the connecting end of the lock rod, which is matched with the perforation of the connecting end of the hook body ; And the clamping end is provided with a groove, which is matched with the abutment block of the bearing end to form a concave-shaped notch in the groove to define two side abutting surfaces; An elastic abutment piece is made of flexible material and is in a concavely folded state. One end is provided with an abutment portion, which is provided at the abutment opening of the connecting end of the hook body, and an insertion portion is provided on the other end. Is inserted into the receiving hole of the pivot groove of the lock lever; And a shaft, through which the through hole of the connecting end of the hook body and the connecting hole on the side edge of the connecting end of the lock rod are in a positioning state, so that the lock rod rotates at the connecting end of the hook body; It is characterized in that: the abutment block of the bearing end of the hook body is provided with a chamfered surface at the lower end of the C-shaped inner edge of the hook body, so that when the lock lever is rotated into the opening of the hook body, it will The chamfered surface increases the sleeve width, and the C-shaped inner edge of the hook body is protruded at the chamfered surface to define a receiving surface and connect each side joint surface to form a U-shaped platform state; In addition, the inner edge of the notch at the locking end of the lock lever is further recessed inward to form a rear abutment surface, which forms a U-shaped platform with each side abutment surface, and is used to abut against the bearing of the hook body The abutment block at the abutment end is set to define the U-shaped platform state formed by each side abutting surface and the bearing surface for increasing the abutting area. The lock rod is further provided with an anti-falling sleeve, which is tubular in shape and sleeved on the outside of the lock rod; The anti-falling sleeve is combined with the lock rod in a screwing manner, and the screw is provided for displacement at the lock rod, so that the anti-falling sleeve can be displaced and covers the bearing end for positioning the lock rod; The anti-falling sleeve is used to position the lock lever in a spring torsion manner, the lock lever is provided with a ring groove to accommodate a spring, and a slot is provided at the upper end of the anti-falling sleeve, so that the anti-falling sleeve is sleeved on the lock The rod is connected to the spring so that the slot is located at the locking end of the lock rod, and the anti-fall sleeve is pivoted at the lock rod, so that the slot and the notch are misaligned to position the lock rod; The shaft is fixed by rivets or screw locks; Wherein, the elastic piece is further provided with an elastic member, which is arranged inside the accommodating hole of the pivot groove of the lock lever, and is connected with the insertion portion of the elastic piece; Wherein, each side contact surface of the bearing end of the hook body and the receiving surface are in an oblique shape; and each side contact surface of the notch of the locking end of the lock lever and the rear contact surface are matched with each side The connecting surface and the bearing surface are oblique; Wherein the bearing surface of the bearing block is on the upper side of the bearing end and the rear side of the bearing end is presented as a curved surface for the groove of the locking end of the lock rod to accommodate the deeper position of the bearing end; Wherein, the groove of the lock rod is further matched with the back side surface of the bearing end to be curved, so that the hook body is pulled and the back face of the lock rod and the bearing surface of the hook body are pressed against. Can fit better Wherein, each side contact surface of the abutment block of the receiving end of the hook body and the U-shaped platform formed by the receiving surface are further provided with a film to increase the bite force when abutting.

The main purpose of this creation is to provide an improved safety hook structure, especially one This is used for safety hooks to increase the movement space of the hooks, and increase the bearing area of the hooks during fastening to increase the bearing strength.

Due to the improvement of the safety hook structure of this creation, its effect is: by the hook body It is bent in a strip shape to form a C shape and forms an opening. One end of the opening forms a connecting end, and the other end forms an abutting end; the connecting end is provided with an obliquely concave abutting opening, and on the side The end is provided with a perforation through the front and rear; and the bearing end is provided with an abutting block, which is wider than the width of the bearing end to form two side joints; through the lock rod, a connecting end and a clamping end are provided ; The connecting end is provided with a pivoting groove, which is set at the connecting end of the hook body, and is provided with an accommodating hole in the pivoting groove, and the connecting end side end is provided with a through the lock rod The connecting hole on the side edge of the connecting end is matched with the perforation of the connecting end of the hook body; and the locking end is provided with a groove, which is matched with the abutment block of the bearing end to form a recess in the groove A shaped notch is provided to define two side contact surfaces; and the elastic contact piece is made of flexible material, and is in a recessed state. There is an abutment portion at one end, which is set on the hook body At the abutment opening of the connecting end, the other end is provided with an inserting part, which is inserted into the receiving hole of the pivot groove of the lock rod; and the shaft is penetrated through the perforation of the connecting end of the hook body The connecting hole on the side edge of the connecting end of the lock lever is positioned so that the lock lever rotates at the connecting end of the hook body; and the abutment block of the bearing end of the hook body is on the hook body The lower end of the C-shaped inner edge is provided with a chamfered surface, and when the lock lever is turned into the opening of the hook body, the width of the sleeve is increased with the chamfered surface, and the chamfered surface faces the C-shaped inside of the hook body The edge is convex to define a receiving surface, and connect each side surface to form a U-shaped platform state; the inner edge of the notch of the locking end of the lock lever is recessed inward to form a rear abutment surface, which is connected to each side The side abutment surface forms a U-shaped platform state, and the abutment block used to abut against the bearing end of the hook body defines the U-shaped platform state formed by each side surface and the receiving surface for increasing abutment Area; thereby, an improved safety hook structure is provided, especially a safety hook, which increases the movable space of the hook, and increases the hook bearing area during fastening to increase the bearing strength.

First of all, please refer to Figures 1 to 7 , which is the "improvement of the safety hook structure" of this creation; it includes: a hook body 1, a lock lever 2, a resilient piece 3 and a shaft 4; Among them: the hook body 1 is bent in a strip shape into a C shape and forms an opening 10, one end of the opening 10 forms a connecting end 11, and the other end forms a bearing end 12; the connecting end 11 is It is provided with an obliquely recessed abutment port 111, and a through hole 112 at the side end; and the abutment end 12 is provided with an abutment block 121, which is wider than the width of the abutment end 12 to form two Side connection surface 1211; The lock lever 2 is provided with a connecting end 21 and a clamping end 22; the connecting end 21 is provided with a pivot groove 211, which is set at the connecting end 11 of the hook body 1, And an accommodating hole 2111 is provided in the pivot groove 2111, and the side end of the connecting end 21 is provided with a connecting hole 2112 penetrating the side edge of the connecting end 21 of the lock lever 2, which is connected to the hook body 1 The perforation 112 of the end 11 is matched; and the clamping end 22 is provided with a groove 221, which cooperates with the abutment block 121 of the bearing end 12 to form a concave-shaped notch 222 in the groove 221 to define Two side abutment surfaces 2221; The elastic abutment piece 3 is made of flexible material and is in a concavely folded state. One end is provided with an abutment portion 31, which is arranged on the abutment end 11 of the hook body 1 The opening 11 is provided, and the other end is provided with an insertion portion 32, which is inserted into the receiving hole 2111 of the pivot groove 2111 of the lock lever 2; and the shaft 4 is inserted through the hook body 1 The perforation 112 of the connecting end 11 and the connecting hole 2112 on the side edge of the connecting end 21 of the lock rod 2 are in a positioning state, so that the lock rod 2 rotates at the connecting end 11 of the hook body 1; characterized in that: the hook The abutment block 121 of the bearing end 12 of the buckle body 1 is provided with a chamfered surface 1212 at the lower end of the C-shaped inner edge of the buckle body 1, and when the lock lever 2 is turned into the opening 10 of the buckle body 1 , Increase the sleeve width with the chamfered surface 1212, and protrude toward the C-shaped inner edge of the hook body 1 at the chamfered surface 1212 to define a receiving surface 1213, and connect each side surface 1211 to form a U The inner edge of the notch 222 of the locking end 22 of the lock lever 2 is further recessed inward to form a rear abutment surface 2222, which forms a U-shaped platform state with each side abutment surface 2221, and The abutment block 121 for abutting against the bearing end 12 of the hook body 1 is set to define the U-shaped platform state formed by each side surface 1211 and the bearing surface 1213, for increasing the abutting area; The structure is further explained as follows: wherein the lock rod 2 is further provided with an anti-drop sleeve 23, which is tubular and is sleeved on the outside of the lock rod 2; wherein the anti-drop sleeve 23 is screwed to the lock rod 2 is combined, and the screw is rotated at the lock rod 2 to move, so that the anti-drop sleeve 23 can be displaced and cover the bearing end 12 for positioning the lock rod 2; wherein the anti-drop sleeve 23 is twisted by a spring The lock rod 2 is positioned in the same manner, and the lock rod 2 is provided with a ring groove 2 4, a spring 241 is accommodated, and a slot 231 is provided on the upper end of the anti-falling sleeve 23, so that the anti-falling sleeve 23 is sleeved on the lock rod 2 and connected with the spring 241, so that the slot 231 is located at the The locking end 22 of the lock rod 2 is provided for the anti-falling sleeve 23 to pivot at the lock rod 2, so that the slot 231 is misaligned with the notch 222 to position the lock rod 2; wherein the shaft 4 is tied to Fixed by rivets or screw locks; wherein the three resilient pieces are further provided with an elastic piece 33, which is arranged inside the receiving hole 2111 of the pivot groove 2111 of the lock lever 2, and is inserted into the resilient piece 3 The side surface 1211 of the bearing end 12 of the hook body 1 and the bearing surface 1213 are obliquely angled; and the notch 2222 of the locking end 22 of the lock lever 2 is connected Each side abutment surface 2221 and the rear abutment surface 2222 match each side abutment surface 1211 and the bearing surface 1213 to form an oblique angle; wherein the bearing surface 1213 of the bearing block 121 is at the upper end and the bearing end 12 rear side , The groove 221 of the locking end 22 of the lock rod 2 can accommodate the deeper position of the bearing end 12; the groove 221 of the lock rod 2 is more matched with the bearing end 12 The side surface is in a curved state, so that the hook body 1 is pulled so that the back surface 2222 of the lock lever 2 and the receiving surface 1213 of the hook body 1 can be more closely contacted; The U-shaped platform formed by each side surface 1211 of the abutment block 1211 of the bearing end 12 of the main body 1 and the bearing surface 1213 is further provided with a film 1214 for increasing the bite force during abutment; The use state description of the preferred embodiment of the "Safety Hook Structure Improvement" of this creation includes: a hook body 1, a lock lever 2, an elastic plate 3 and a shaft 4; among them: the hook body 1, The structure of the lock rod 2, the resilient piece 3, and the shaft rod 4 has been described above, so it will not be described. Therefore, when using this creation to hang heavy objects, the lock rod 2 is passed through The opening 10 of the hook body 1 is pressed inward, so that the lock lever 2 is in an open state, and the abutment block 121 of the bearing end 12 of the hook body 1 is provided with the chamfered surface 1212 to enable After being pushed, the lock rod 2 is in a parallel state and produces a larger gate opening, which can easily hook up equipment, and buckle thicker ropes and rods; and release the pushed lock rod 2 after hanging, Make the resilient piece 3 push the lock rod 2 back into position, and when bearing a heavy object, the hook body 1 will deform due to the weight, so that each of the notches 222 of the locking end 22 of the lock rod 2 The side abutment surface 2221 and the rear abutment surface 2222 are attached to the abutment end 12 of the hook body 1 at each side abutment surface 1211 of the abutment block 1211 and the bearing surface 1213 to increase the abutment area and increase the weight Load capacity; Moreover, the lock rod 2 is further provided with the anti-drop sleeve 23, which is tubular and is sleeved on the outside of the lock rod 2; and the anti-drop sleeve 23 can be combined with the lock rod 2 by screwing, and It is used to screw the lock rod 2 to move, so the anti-falling sleeve 23 can be screwed Rotational displacement and cover the bearing end 12, so that the anti-dropping sleeve 23 simultaneously sets the lock rod 2 and the hook body 1 to position the lock rod 2; so far, the anti-dropping sleeve 23 can be positioned in a spring torsion manner The lock lever 2 is provided with the ring groove 24 to accommodate the spring 241, and the upper end of the anti-drop sleeve 23 is provided with the slot 231, so that the anti-drop sleeve 23 is set on the lock lever 2 and Connected to the spring 241 so that the slot 231 is located at the locking end 22 of the lock lever 2, so that the slot 231 can be rotated to the notch 222 to push the shaft 2 to push the abutment block 121 Away from the notch 222, and after buckling the abutment block 121 in the notch 222, the anti-falling sleeve 23 is rotated by the spring 241, so that the slot 231 and the notch 222 are misaligned and positioned The lock rod 2; Furthermore, each side surface 1211 of the bearing end 12 of the hook body 1 and the bearing surface 1213 are beveled; and the notch of the locking end 22 of the lock rod 2 Each side abutment surface 2221 and the rear abutment surface 2222 of 222 are obliquely angled in accordance with the side abutment surface 1211 and the bearing surface 1213; therefore, when weight is applied, the joint area can be increased by the bevel state, and Raise the joint area of each side surface 1211 and the bearing surface 1213, each side abutment surface 2221 and the rear abutment surface 2222 when the upper and lower ends of the abutment; and, the upper end of the bearing surface 1213 of the abutment block 121, the bearing end On the rear side of 12, the groove 221 of the locking end 22 of the lock rod 2 can be presented as a curved surface to accommodate the deeper position of the bearing end 12; and the groove 221 of the lock rod 2 can better match the The back side of the bearing end 12 is in a curved state, so that the bearing end 12 of the hook body 1 and the locking end 22 of the lock lever 2 can be more closely fitted when pulled, so as not to cause the bearing surface 1213 and The rear abutment surface 2222 is misplaced and loses its function. More specifically, the U-shaped platform formed by each side surface 1211 of the abutment block 121 of the receiving end 12 of the hook body 1 and the receiving surface 1213, more A film 1214 can be installed so that when a heavy object is hung, the upper and lower closeness can be improved by squeezing the film 1214 to increase the bite force when the weight is resisted; due to the improved safety hook structure of this creation, its effect It lies in that: the hook body 1 is bent in a strip shape into a C shape and forms an opening 10, one end of the opening 10 forms a connecting end 11, and the other end forms a bearing end 12; the connecting end 11 is It is provided with an obliquely recessed abutment port 111, and a through hole 112 at the side end; and the abutment end 12 is provided with an abutment block 121, which is wider than the width of the abutment end 12 to form two Side connection surface 1211; after the lock lever 2, a connecting end 21 and a clamping end 22 are provided; the connecting end 21 is provided with a pivot groove 211, which is set at the connecting end 11 of the hook body 1 , And an accommodating hole 2111 is provided in the pivot groove 2111, and the side end of the connecting end 21 is provided with a connecting hole 2112 that penetrates the side edge of the connecting end 21 of the lock lever 2 , Is matched with the perforation 112 of the connecting end 11 of the hook body 1; and the clamping end 22 is provided with a groove 221, which is formed in the groove 221 to match the abutment block 121 of the bearing end 12 A recessed notch 2222 defines two side contact surfaces 2221; and the elastic contact piece 3 is made of flexible material and is in a recessed state. An abutment portion 31 is provided at one end. At the abutment opening 111 of the connecting end 11 of the hook body 1, an inserting portion 32 is provided at the other end, which is inserted into the receiving hole 2111 of the pivot groove 2111 of the lock lever 2; The shaft 4 penetrates through the hole 112 of the connecting end 11 of the hook body 1 and the connecting hole 2112 on the side edge of the connecting end 21 of the lock rod 2 is in a positioning state, so that the lock rod 2 is in the hook body 1 The connecting end 11 rotates; and the abutting block 121 of the bearing end 12 of the hook body 1 is provided with a chamfered surface 1212 at the lower end of the C-shaped inner edge of the hook body 1, so that the lock lever 2 faces the hook When the opening 10 of the buckle body 1 rotates, the sleeve width increases with the chamfered surface 1212, and the chamfered surface 1212 protrudes toward the C-shaped inner edge of the buckle body 1 to define a receiving surface 1213, and Connect each side surface 1211 to form a U-shaped platform state; make the inner edge of the notch 222 of the locking end 22 of the lock lever 2 recessed inward to form a rear abutment surface 2222, which forms a U with each side abutment surface 2221 The abutment block 121 used to abut against the bearing end 12 of the hook body 1 defines the U-shaped platform state formed by each side surface 1211 and the bearing surface 1213 for increasing Relying area; in this way, an improved safety hook structure is provided, especially a safety hook, which increases the movable space of the hook, and increases the hook bearing area during fastening to increase the bearing force.

Based on the above, an improved safety hook structure has not been seen in books or publications Use, sincerely meet the requirements of a new patent application, I sincerely ask the Jun Bureau to approve the patent as soon as possible. I really pray. If you need to clarify, the above are the specific embodiments of this creation and the technical principles used. If changes are made according to the concept of this creation, the resulting functional effects still do not exceed the spirit covered by the specification and drawings. At the time, they should be combined with Chen Ming within the scope of this creation.

[This creation] １: Hook body 10: Opening １１: Connection terminal 11: Arrival port 112: Piercing 12: End of acceptance 121: Arrival block 1211: side surface 1212: Beveled surface 1213: Acceptance 1214: Film 2: Lock lever 21: Connection terminal 211: pivot slot 2111: containment hole 2112: Connection hole 22: Card setting end 221: Groove 222: Notch 2221: Side contact surface 2222: After arriving 23: Anti-offset 231: Slotting 24: Ring groove 241: Spring 3: Elastic film 31: Arrival Department 32: Insertion Department 33: Elastic parts 4: Shaft

Figure 1 is a three-dimensional diagram of this creation. Figure 2 is a three-dimensional exploded schematic diagram of this creation. Figure 3 is a schematic cross-sectional view of this creation. Figure 4 is a partial cross-sectional schematic diagram of this creation (1). Figure 5 is a partial cross-sectional schematic diagram of this creation (2). Figure 6 is a schematic cross-sectional view of this creation from another perspective. Figure 7 is an enlarged schematic diagram of another view of the film used for creation.

1: Hook body

10: opening

11: Connection terminal

111: Arrival

112: Piercing

12: End of acceptance

121: Arrival Block

1211: side surface

1212: Bevel

1213: Acceptance

2: lock lever

21: connecting end

211: pivot slot

2112: connecting hole

22: Card setting end

221: Groove

23: Anti-offset

231: Slotting

24: ring groove

241: Spring

3: elastic film

31: Arrival Department

32: Insertion Department

33: Elastic

4: shaft

Claims (10)

An improved safety hook structure including: A hook body is bent in a strip shape into a C shape and forms an opening. One end of the opening forms a connecting end, and the other end forms an abutting end; the connecting end is provided with an oblique recessed abutment A port is provided, and a through hole is provided at the side end; and the bearing end is provided with an abutting block, which is wider than the width of the bearing end to form two side joints; A lock lever is provided with a connecting end and a locking end; the connecting end is provided with a pivoting groove, which is set at the connecting end of the hook body, and a receiving hole is provided in the pivoting groove , And the side end of the connecting end is provided with a connecting hole penetrating the side edge of the connecting end of the lock rod, which is matched with the perforation of the connecting end of the hook body ; And the clamping end is provided with a groove, which is matched with the abutment block of the bearing end to form a concave-shaped notch in the groove to define two side abutting surfaces; An elastic abutment piece is made of flexible material and is in a concavely folded state. One end is provided with an abutment portion, which is provided at the abutment opening of the connecting end of the hook body, and an insertion portion is provided on the other end. Is inserted into the receiving hole of the pivot groove of the lock lever; And a shaft, through which the through hole of the connecting end of the hook body and the connecting hole on the side edge of the connecting end of the lock rod are in a positioning state, so that the lock rod rotates at the connecting end of the hook body; It is characterized in that: the abutment block of the bearing end of the hook body is provided with a chamfered surface at the lower end of the C-shaped inner edge of the hook body, so that when the lock lever is rotated into the opening of the hook body, it will The chamfered surface increases the sleeve width, and the C-shaped inner edge of the hook body is protruded at the chamfered surface to define a receiving surface and connect each side joint surface to form a U-shaped platform state; In addition, the inner edge of the notch at the locking end of the lock lever is further recessed inward to form a rear abutment surface, which forms a U-shaped platform with each side abutment surface, and is used to abut against the bearing of the hook body The definition of the resistance block The U-shaped platform state formed by each side surface and the receiving surface can increase the abutting area. The safety hook structure improvement of claim 1, wherein the lock rod is further provided with an anti-falling sleeve, which is tubular in shape and is sleeved on the outside of the lock rod. The safety hook structure improvement described in claim 2, wherein the anti-falling sleeve is combined with the lock rod in a screwing manner, and the screw is provided for displacement at the lock rod, so that the anti-falling sleeve can be displaced and covered The bearing end is used for positioning the lock rod. The safety hook structure improvement of claim 2, wherein the lock rod is positioned by the spring torsion by the anti-drop sleeve, the lock rod is provided with a ring groove to accommodate a spring, and the anti-drop sleeve is provided at the upper end There is a slot, so that the anti-falling sleeve is sleeved on the lock rod and connected with the spring, so that the slot is located at the locking end of the lock rod, and the anti-falling sleeve is pivoted at the lock rod to make the The slot is misaligned with the notch to position the lock rod. The safety hook structure improvement of claim 1, wherein the shaft is fixed by rivets or screw locks. The safety hook structure improvement of claim 1, wherein the elastic piece is further provided with an elastic member, which is arranged inside the receiving hole of the pivot groove of the lock lever, and is connected to the insertion portion of the elastic piece Connected. The safety clasp structure improvement described in claim 1, wherein each side contact surface of the bearing end of the hook body and the bearing surface are oblique; and each of the notches at the locking end of the lock lever The side abutment surface and the back abutment surface cooperate with each side abutment surface and the receiving surface to form an oblique angle. The safety hook structure improvement of claim 1, wherein the bearing surface of the abutting block is on the upper side of the bearing end and the rear side of the bearing end is presented as a curved surface for the groove of the locking end of the lock lever to accommodate the The bearing end is deeper. According to claim 8, the safety hook structure is improved, wherein the groove of the lock rod is further matched with the back side of the bearing end to be curved, so that the hook body is pulled and the back contact surface of the lock rod and When the bearing surface of the hook body is in contact with each other, it can fit better. The safety hook structure improvement described in claim 1, wherein each side surface of the abutment block of the receiving end of the hook body and the U-shaped platform formed by the receiving surface are further provided with a film for additional abutment The bite force.

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