CN216111958U

CN216111958U - Spring S hook not easy to unhook for safety chain

Info

Publication number: CN216111958U
Application number: CN202121811800.3U
Authority: CN
Inventors: 沈晓峰
Original assignee: Nantong Renfeng Metal Products Co ltd
Current assignee: Nantong Renfeng Metal Products Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-03-22
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to a spring S hook which is not easy to unhook and used for a safety chain, and the spring S hook comprises an S-shaped hook body, a spring closing assembly and a limiting assembly, wherein the S-shaped hook body consists of a first hook section, a straight connecting section and a second hook section; according to the utility model, the spring closing assembly and the limiting assembly are arranged, so that the spring S hook is in a state of opening at two sides under a normal condition, the daily requirement is met, and when the unhooking is required, the opening at one side is closed, and the unhooking prevention function is realized.

Description

Spring S hook not easy to unhook for safety chain

Technical Field

The utility model relates to the field of chains, in particular to a spring S-shaped hook which is not easy to unhook and used for a safety chain.

Background

As is known, S hook hardware is very common in life, an S hook is usually matched with various safety chains for use, and is used for mechanical fixing, traction hoisting and the like, the currently common S hook is divided into two types, one type is a general S hook with openings on two sides, the S hook is simple in structure, convenient to process and integrally formed, only one side of the S hook is required to penetrate into a ring buckle of the safety chain in the using process, but the S hook hooks the safety chain as far as the safety chain vertically, unhooking phenomenon is easy to occur when the safety chain is in an inclined state, the other type is a spring S hook with an opening on one side and a closed on the other side, the S hook forms a closed ring on one side connected with the safety chain through a spring assembly, unhooking phenomenon is effectively avoided, but one side of the spring S hook connected with the safety chain is always in a closed state, and whether unhooking is required or not, the opening is opened through pressing the spring assembly to connect the safety chain, this is extremely inconvenient to use without the need for an anti-unhooking.

The utility model thus proposes a safety chain that solves the above-mentioned problems with a spring S-hook that is not easily unhooked.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a spring S hook which is not easy to unhook and used for a safety chain, wherein the spring S hook is in a state that two sides are opened under a normal condition, so that daily requirements are met, and when unhooking is required, one side opening is closed, so that the spring S hook has an unhooking prevention function.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a safety chain is with difficult spring S hook that breaks off relations which innovation point lies in: comprises an S-shaped hook body, a spring closing component and a limiting component;

the S-shaped hook body consists of a first hook section, a straight connecting section and a second hook section, wherein two sides of the straight connecting section are respectively connected with the first hook section and the second hook section;

the spring closing assembly comprises a closing plate and two torsion springs, the closing plate is connected to the outer side wall of the straight connecting section through a pin, the two torsion springs are symmetrically fixed to the outer side wall of the straight connecting section through cross rods, the cross rods are symmetrically fixed to the outer side wall of the straight connecting section, the two torsion springs are sleeved on the two cross rods respectively, one side, close to the straight connecting section, of each torsion spring is fixedly connected with the outer side wall of the straight connecting section, the other side of each torsion spring is fixedly connected with the top of the closing plate, close to the pin, of one side, and an opening is formed between the closing plate and the second hook section under the action of the torsion springs;

the limiting assembly is arranged on one side, away from the straight connecting section, of the second hook section, one side, away from the pin, of the closing plate is connected with one side, away from the straight connecting section, of the second hook section in a sleeved mode through the limiting assembly in a rotating mode around the pin under the action of external force, and therefore the opening is effectively closed.

Furthermore, a first groove for accommodating the straight connecting section is formed in one side, close to the pin, of the closing plate, and the bottom end of the first groove is in contact with the outer side wall of the straight connecting section;

furthermore, one side of the closing plate, which is far away from the pin, is provided with a through hole for allowing one side of the second hook section, which is far away from the straight connecting section, to pass through, and one side of the second hook section, which is far away from the straight connecting section, is arranged on a motion track of the through hole rotating around the pin;

further, spacing subassembly includes the stopper that two symmetries set up, the second crotch section is kept away from one side symmetry of straight type linkage segment is opened there are two confessions stopper rectilinear motion's second recess, the stopper all is in through spring coupling the bottom of second recess, the stopper is in spring action part protrusion is in the second recess is outside, the bottom of stopper bulge with the top contact of closure plate is right closure plate 4 carries out effective check and keeps off the realization the opening is effectively closed.

The utility model has the advantages that:

(1) according to the utility model, the spring closing assembly and the limiting assembly are arranged, so that the spring S hook is in a state of opening at two sides under a normal condition, the daily requirement is met, and when the unhooking is required, the opening at one side is closed, and the unhooking prevention function is realized;

(2) the first groove for accommodating the straight connecting section is formed in one side, close to the pin, of the closing plate, so that an opening formed by the closing plate and the second hook section under the action of the torsion spring is larger, and the connection between the spring S hook and the safety chain is more convenient;

(3) according to the utility model, the through hole is formed in one side of the closing plate, which is far away from the pin, and one side of the second hook section, which is far away from the straight connecting section, is arranged on the motion track of the through hole rotating around the pin, so that the closing plate can be accurately sleeved on the second hook section under the action of external force, and the opening is quickly closed;

(4) according to the utility model, the limit block is arranged, when the safety chain is installed, the closing plate is limited to realize the unhooking prevention function, and when the safety chain needs to be dismounted, the closing plate is far away from the second hook section under the action of the torsion spring only by pressing the limit block, so that the safety chain is convenient to dismount.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of a spring S hook for a safety chain, which is not easy to unhook;

FIG. 2 is a schematic diagram of the spring closure assembly of the present invention;

fig. 3 is a schematic structural view of the limiting assembly of the present invention.

Reference numbers in the figures: 1. a first hook section; 2. a straight connecting section; 3. a second hook section; 4. a closing plate; 5. a torsion spring; 6. a pin; 7. a cross bar; 8. an opening; 9. a first groove; 10. a through hole; 11. a limiting block; 12. a second groove; 13. a spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein are arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather at a slight incline. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but rather at a slight inclination.

In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed", "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, as well as a detachable connection, or an integral connection; either mechanically or electrically; either directly or indirectly through intervening media, to provide communication between the two elements. The specific meanings of the above terms in the present invention are understood as specific conditions for those of ordinary skill in the art.

The spring S hook for the safety chain, which is not easy to unhook, comprises an S-shaped hook body, a spring closing component and a limiting component.

The S-shaped hook body is composed of a first hook section 1, a straight connecting section 2 and a second hook section 3, the two sides of the straight connecting section 2 are respectively connected with the first hook section 1 and the second hook section 3, and the first hook section 1, the straight connecting section 2 and the second hook section 3 are integrally formed.

Spring closing assembly includes a closing plate 4 and two torsion spring 5, closing plate 4 rotates through pin 6 and connects on the lateral wall of straight type linkage segment 2, two torsion spring 5 pass through the horizontal pole 7 symmetry and fix on the lateral wall of straight type linkage segment 2, the lateral wall symmetry of straight type linkage segment 2 is fixed with horizontal pole 7, two torsion spring 5's both sides suit respectively on two horizontal poles 7, torsion spring 5 be close to straight type linkage segment 2 one side all with straight type linkage segment 2's lateral wall fixed connection, torsion spring 5's opposite side all with closing plate 4 be close to one side top fixed connection of pin 6, closing plate 4 has an opening 8 under torsion spring 5's effect with between second crotch section 3.

As shown in fig. 2, a first groove 9 for accommodating the straight connecting section 2 is formed in one side of the closing plate 4 close to the pin 6, the bottom end of the first groove 9 contacts with the outer side wall of the straight connecting section 2, so that the area of an opening 8 formed by the closing plate 4 and the second hook section 3 under the action of the torsion spring 5 is larger, and the connection of the spring S hook and the safety chain is facilitated, a through hole 10 for allowing one side of the second hook section 3 far from the straight connecting section 2 to pass through is formed in one side of the closing plate 4 far from the pin 6, one side of the second hook section 3 far from the straight connecting section 2 is arranged on a motion track of the through hole 10 rotating around the pin, so that the closing plate 4 can be accurately sleeved on the second hook section 3 under the action of external force, and the opening 8 is rapidly closed.

The limiting component is arranged at one side of the second hook section 3 far away from the straight connecting section 2, as shown in fig. 3, the limiting component comprises two limiting blocks 11 which are symmetrically arranged, two second grooves 12 for the limiting blocks 11 to move linearly are symmetrically formed at one side of the second hook section 3 far away from the straight connecting section 2, the limiting blocks 11 are connected to the bottom of the second grooves 12 through springs 13, the limiting blocks 11 are partially protruded outside the second grooves 12 under the action of the springs 13, the bottom of the protruded part of the limiting blocks 11 is contacted with the top of the closing plate to block the closing plate 4, the closing plate 4 is prevented from being separated from the second hook section under the action of the torsion springs, the opening 8 is effectively closed, so that the spring S hook is connected with the safety chain in an anti-falling mode, when the safety chain needs to be taken out, only the limiting blocks 11 are pressed to move into the second grooves 12, so that the limiting blocks 11 completely enter the second grooves 12, at this point the closing plate 4 is moved away from the second hook section 3 by the torsion spring 5 to open the opening 8 and remove the safety chain.

The spring S hook for the safety chain, which is not easy to unhook, is in a state of opening at two sides under a normal condition, meets daily requirements, and enables the opening at one side to be closed when unhooking is required, so that the spring S hook has an unhooking prevention function.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a safety chain is with difficult spring S hook that breaks off relations which characterized in that: comprises an S-shaped hook body, a spring closing component and a limiting component;

the limiting assembly is arranged on one side, away from the straight connecting section, of the second hook section, one side, away from the pin, of the closing plate is rotatably sleeved around the pin under the action of external force, the second hook section is away from one side of the straight connecting section and is fixed through the limiting assembly, and therefore the opening is effectively closed.

2. The spring S-hook for a safety chain according to claim 1, characterized in that: one side of the closed plate, which is close to the pin, is provided with a first groove for accommodating the straight connecting section, and the bottom end of the first groove is in contact with the outer side wall of the straight connecting section.

3. The spring S-hook for a safety chain according to claim 1, characterized in that: one side that the closed plate kept away from the pin has one and supplies the second crotch section is kept away from the through-hole that one side of straight type linkage segment passed, the second crotch section is kept away from one side setting of straight type linkage segment is in the through-hole is around pin pivoted movement track.

4. The spring S-hook for a safety chain according to claim 1, characterized in that: spacing subassembly includes the stopper that two symmetries set up, the second crotch section is kept away from one side symmetry of straight type linkage segment is opened there are two confessions stopper rectilinear motion's second recess, the stopper all is in through spring coupling the bottom of second recess, the stopper is in the spring action part of the component protrusion is in the second recess is outside, the bottom of stopper bulge with the top contact of closure plate, it is right closure plate (4) carry out effective check and keep off the realization the opening is effectively closed.