CN218420714U

CN218420714U - Safety hook with anti-overturning protrusion

Info

Publication number: CN218420714U
Application number: CN202222606495.5U
Authority: CN
Inventors: 许卫东; 张海燕; 许智豪
Original assignee: Nantong Haiteng Safety Protection Equipment Co ltd
Current assignee: Nantong Haiteng Safety Protection Equipment Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-03
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a bellied safety hook prevents overturning in area, it includes coupler body and hook handle, and coupler body lower extreme design is connected with the hook handle, and coupler body design U type crotch form, and the tail end and the hook handle top that the hook handle was kept away from to the coupler body form the hook mouth, and the top outside bight design of coupler body has a protruding and protruding top position that is located the hook handle. The safety hook has the advantages that the safety hook is ingenious in design and reasonable and compact in structure, the protrusion is arranged on one side, close to the hook handle, of the upper end of the outer side of the hook body, the semicircular ring of the safety belt is designed to be prevented from overturning and sliding, the semicircular ring is located at the U-shaped hook-shaped bottom of the hook body when the safety hook is stressed, the maximum tensile strength can be borne by the safety hook, and the safety hook is safe and reliable.

Description

Safety hook with anti-overturning protrusion

Technical Field

The utility model relates to a safety equipment field, concretely relates to protruding safety hook of upset is prevented in area.

Background

Safety hooks (snap hooks), also known as "master locks", are the most commonly used means of attachment for cables, straps and anchors, equipment, etc. The safety shackle needs to be attached with a locking function. The locking function is divided into two types, namely manual locking and automatic locking. The hand-operated lock is suitable for most environments, but the hand-operated lock must be locked immediately after connection, otherwise accidents can occur due to the fact that the door is unlocked due to careless equipment collision in the operation process. The unlocked shackle, as in the open position of the gate, has a much lower tension (breaking load) than the locked position. The hook is divided into a common type (rotary type) and a spring hook (self-locking type). The appearance is like D (rescue, military) and 8 (engineering and construction). The spring type is provided with a spring at one end of the valve, and the spring is not provided in the common mode. When in use, the rope is matched with a rope, an ascender, a descender, a flat belt and the like. In the field of fire fighting, safety hooks are mainly used to protect firefighters from falling during operation, and also for lifting systems (haunting systems). In the engineering field, the safety hook is mainly used for protecting the safety of high-position constructors. The safety hook is respectively connected with two ends of the safety rope, the safety hook at one end is hooked on the semicircular ring on the safety belt, and the safety hook at the other end is hooked on other fixed buildings (anchor points) after ascending. The parameters of the safety hook are working tension (WS) and blasting tension (BS), and the parameters of the safety hook are different according to different standards and manufacturers.

Normal use requires the hook body upper end of safety hook just in time to hook in the semicircle ring of safety belt, and the hook body atress can maximize like this, but in the use, sometimes the operation carelessly can lead to the semicircle ring of safety belt to slide to the hook handle department of safety hook along the hook body upset, in case bear pulling force this moment, then lead to whole safety hook atress unbalanced, can't reach the maximum design of safety hook and bear pulling force, then dangerous.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a protruding safety hook is prevented overturning in area, design benefit, convenient to use can prevent that the semicircle hoop of safety belt from slipping in the upset of hook handle department, safe and reliable.

The technical scheme of the utility model:

the safety hook comprises a hook body and a hook handle, wherein the lower end of the hook body is connected with the hook handle in a designed mode, the hook body is in a U-shaped hook shape, the tail end, far away from the hook handle, of the hook body forms a hook opening with the upper portion of the hook handle, and a protrusion is designed at the corner portion of the outer side of the upper portion of the hook body and located above the hook handle.

The protrusions are designed into triangular protrusions.

The protrusions are designed into sheet-shaped protrusions, and the sheet-shaped protrusions are located in the middle of the corner of the hook body.

The thickness of the projection is thinner than that of the hook body.

The widths of the bulge and the hook body are larger than the inner diameter of the semicircular ring of the safety belt.

The utility model has the advantages that design benefit, compactness rational in infrastructure is close to hook handle one side design arch in coupler body outside upper end, and this protruding design is used for blockking that the semicircle ring upset of safety belt slides, and the semicircle ring lies in the U type crotch form U type bottom of coupler body when guaranteeing the atress of safety hook, and the safety hook can bear the biggest tensile dynamics like this, safe and reliable.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a plan view of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a perspective view of the present invention.

Detailed Description

Referring to the attached drawings 1-4, the safety hook with the anti-overturning protrusion 3 comprises a hook body 1 and a hook handle 2, the lower end of the hook body 1 is connected with the hook handle 2 in a designed mode, the hook body 1 is designed into a U-shaped hook shape, the tail end, far away from the hook handle 2, of the hook body 1 forms a hook opening with the upper portion of the hook handle 2, the corner portion of the outer side of the upper portion of the hook body 1 is designed with the protrusion 3, and the protrusion 3 is located at the position above the hook handle 2.

The projections 3 are designed as triangular projections. The design of triangle-shaped arch satisfies that whole hook flow line structure is smooth, can not too protruding wounded, can also guarantee to block upset sliding action.

The bulge 3 is designed into a sheet-shaped bulge, and the sheet-shaped bulge is positioned in the middle position of the corner of the hook body 1. The thickness of the projection 3 is thinner than that of the hook body 1. This design mitigates the entire hook component.

The width of the bulge 3 and the hook body 1 is larger than the inner diameter of the semicircular ring of the safety belt. The belt ring of the safety belt can not be overturned and slid, and is not limited to the common semicircular ring.

The utility model discloses still include subassembly such as locking plate, torsional spring, unlocking plate, these are prior art, the utility model discloses simple description, for example in patent CN201921088072.0, CN201420179674.8, all carry out the detailed description.

When the utility model is used, the self-locking mechanisms such as the locking plate and the blocking piece are opened, and the hook body is hooked in the semicircular ring of the safety belt, the self-locking mechanism completes self-locking and hooking; the maximum inner diameter of the semicircular ring of the safety belt is smaller than the maximum width of the protrusion and the hook body together, the semicircular ring cannot turn and slide to the position of the hook handle, and the semicircular ring is automatically positioned at the bottom of the U-shaped hook groove of the hook body once stressed, so that the safety hook can exert the maximum bearing tension force and is safe and reliable. The protruding design of triangle-shaped not only plays and prevents that safe belt wheel upset from sliding to hook handle department, leads to the coupler body stress point to change, reduces the problem of coupler body tensile strength, and the protruding tensile strength who still strengthens the design position of triangle-shaped simultaneously.

Claims

1. The safety hook is characterized in that the hook body is designed into a U-shaped hook shape, the tail end of the hook body, far away from the hook handle, forms a hook opening with the upper portion of the hook handle, and a protrusion is designed at the corner of the outer side of the upper portion of the hook body and located above the hook handle.

2. The safety hook with an anti-eversion tab as claimed in claim 1, wherein said tab is designed as a triangular tab.

3. The snap hook of claim 1, wherein the projection is a tab projection located intermediate the corners of the hook body.

4. The safety hook with an anti-eversion tab of claim 1, wherein the tab is thinner than the body.

5. The safety hook with anti-roll protrusion as claimed in claim 1, wherein the width of the protrusion and the hook body is larger than the inner diameter of the semicircular ring of the safety belt.