CN213923754U - Magnetic anti-drop card - Google Patents

Abstract

The utility model relates to an anticreep card is inhaled to magnetism relates to lifting hook structural design technical field, and anticreep card is inhaled to magnetism is installed in the lifting hook, the lifting hook contains hook neck, coupler body and gib head, its characterized in that: the magnetic anti-release clamp comprises an anti-release clamp main body, wherein the anti-release clamp main body is in a strip plate shape, one end of the anti-release clamp main body is hinged to the hook neck, and the other end of the anti-release clamp main body is provided with a strong magnet; a return spring is arranged on the inner surface of the anti-falling clamp main body; and one end of the anti-falling clamp main body, which is provided with the strong magnet, is abutted against the hook head under the action of the return spring and the strong magnet. The application of the magnetic anti-disengaging card can utilize the magnetic anti-disengaging hook to prevent the magnetic anti-disengaging hook except the anti-disengaging hook under the action of the reset spring.

Description

Magnetic anti-drop card

Technical Field

The application relates to the technical field of lifting hook structure design, in particular to a magnetic anti-drop clamp.

Background

In the field of equipment manufacturing and infrastructure construction in China, hoisting equipment plays an important role and provides great convenience for production, and the lifting hook is used as an important bearing part of the hoisting equipment, so that the mechanical property of the hoisting equipment is met, and the safety requirement of unhooking prevention of a lifting appliance is also considered.

In the related technology, the traditional crane hook mostly adopts a spring type anti-drop clamp, and the anti-drop clamp comprises a main body structure, a fixed pin shaft, a reset spring installation chamber and a reset spring; when the anti-unhooking device is used, the main body structure is abutted against the hook part of the lifting hook by the reset spring, so that the aim of preventing unhooking is fulfilled.

However, after the anti-drop clamp body and the mounting lugs of the lifting hook body are assembled, the mounting gap is large, the anti-drop clamp is easy to deviate along the fixed pin shaft during working, and the lifting hook cannot be closed into a ring. In addition, anticreep card rebound spring is after using a period, and the resilience force descends, also can cause the closed end of anticreep card main part can not be closed with the lifting hook completely, is difficult to reach the anticreep requirement that the lifting hook was tightly closed all the time.

Disclosure of Invention

The embodiment of the application provides an anticreep card is inhaled to magnetism, except can be at the unhook under reset spring's effect, can also utilize the magnetic attraction effect unhook.

The application provides a magnetic-attraction anti-falling clamp which is arranged on a lifting hook, wherein the lifting hook comprises a hook neck, a hook body and a hook head, the magnetic-attraction anti-falling clamp comprises an anti-falling clamp main body, the anti-falling clamp main body is in a strip-shaped plate shape, one end of the anti-falling clamp main body is hinged to the hook neck, and the other end of the anti-falling clamp main body is provided with a powerful magnet; a return spring is arranged on the inner surface of the anti-falling clamp main body; and one end of the anti-falling clamp main body, which is provided with the strong magnet, is abutted against the hook head under the action of the return spring and the strong magnet.

In some embodiments, the two side edges of the anti-drop card body are provided with vertical inward-facing reinforcing edges.

In some embodiments, the return spring includes a first abutting end, a second abutting end, and two spring bodies for connecting the first abutting end and the second abutting end; the first abutting end abuts against the hook body, and the second abutting end abuts against the anti-falling card main body.

In some embodiments, a fixing mechanism is vertically arranged on the inner surface of the anti-drop card main body, the fixing mechanism and the reinforcing edge form two square frames, a certain distance is reserved between the two square frames, and each square frame contains one spring body.

In some embodiments, the hook neck is provided with a mounting lug with a hole, the anti-falling clamp main body is provided with a pin hole, the pin hole penetrates through the reinforcing edge and the two square frames, the mounting lug is accommodated in the space between the two square frames, and the mounting lug is hinged with the pin hole through a pin shaft.

In some embodiments, an arc-shaped opening is formed at one end of the anti-falling clamp main body, where the powerful magnet is mounted, and the arc-shaped opening is tightly attached to the hook head.

In some embodiments, the powerful magnet is in a strip shape and is tightly fixed on the inner surface of the anti-falling card body.

In some embodiments, the width of the anti-slip body is equal to the diameter of the hook body.

In some embodiments, the anti-slip main body has an inverted isosceles trapezoid shape, and a stiffening rib for reinforcing the structural strength is provided on the inner surface of the anti-slip main body.

In some embodiments, the magnetic anti-drop clamp further comprises a lever assembly, the lever assembly is a C-shaped steel with a downward opening, and a middle plate of the C-shaped steel is provided with a notch; the lifting hook passes through the notch, and the notch is located the transition district of hook neck and coupler body, and the side end face of C shaped steel one end support hold in the internal surface of anticreep card main part, the other end orientation of C shaped steel is kept away from the one end of gib head and is stretched out.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a magnetic-attraction anti-release clamp which comprises an anti-release clamp body, wherein one end of the anti-release clamp body is hinged to a hook neck, and the other end of the anti-release clamp body is provided with a strong magnet; the inner surface of the anti-drop clamp main body is provided with a return spring; the magnetic anti-release clamp can not only enable the end part of the anti-release clamp main body to abut against the hook head under the action of the reset spring to prevent unhooking; the magnetic attraction anti-release clamp has the advantages that under the action of the strong magnet, the strong magnet and the hook head are closely attracted due to magnetic attraction, so that the end part of the anti-release clamp main body is abutted against the hook head to prevent unhooking, and the anti-release clamp is particularly suitable for use after the resilience force of the return spring is reduced, so that double insurance of preventing unhooking is realized, and the magnetic attraction anti-release clamp is safer and more reliable and has long service life; and the magnetic attraction anti-disengaging structure of the application is simple, low in manufacturing cost, convenient to implement and wide in application range.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of a magnetic anti-separation card installation provided in an embodiment of the present application (lever-free assembly);

FIG. 2 is a schematic view of a magnetic anti-slip card according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a main body of the anti-separation card provided in the embodiment of the present application;

FIG. 4 is a schematic view of a return spring provided in an embodiment of the present application;

FIG. 5 is a schematic view of a magnetically attracted anti-separation clamp for mounting a lever assembly according to an embodiment of the present disclosure;

reference numerals: 1. a drop-proof card body; 2. a stabilizing mechanism; 3. a pin hole; 4. a spring installation chamber; 5. a strong magnet; 6. a hook; 61. hooking a neck; 610. mounting lugs; 62. hooking the body; 63. a hook head; 7. a return spring; 11. a reinforcing edge; 71. a first abutting end; 72. a spring body; 73. a second butting end; 8. a pin shaft; 9. a lever assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. 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 application.

As shown in fig. 1 and 2, the present application discloses an embodiment of a magnetic anti-drop card, which is mounted on a hook 6 for preventing the hook 6 from being unhooked during use. The hook 6 comprises a neck 61, a shank 62 and a head 63. The utility model provides a magnetic attraction anticreep card contains anticreep card main part 1, and anticreep card main part 1 is bar platelike, and its one end articulates in hook neck 61, and strong magnet 5 is installed to the other end. The inner surface of the anti-drop card main body 1 is provided with a return spring 7, and one end of the anti-drop card main body 1 provided with the strong magnet 5 is propped against the hook head 63 under the action of the return spring 7 and the strong magnet 5.

The magnetic anti-release clamp can not only enable the end part of the anti-release clamp main body 1 to be abutted against the hook head 63 under the action of the reset spring 7 to prevent unhooking; under the action of the strong magnet 5, the strong magnet 5 and the hook head 63 are closely attracted due to magnetic attraction, so that the end part of the anti-unhooking main body 1 is abutted against the hook head 63 to prevent unhooking, double insurance for preventing unhooking is realized, and the anti-unhooking device is safer and more reliable.

As shown in fig. 2, the two side edges of the anti-drop card body 1 are provided with vertically inward reinforcing edges 11. The reinforcing edge 11 not only can be used for reinforcing the structural strength of the anti-separation main body 1, but also is used for limiting one end of the return spring 7 on the inner surface of the anti-separation main body 1.

As shown in fig. 4, in one embodiment, the return spring 7 includes a first abutting end 71, a second abutting end 73, and two spring bodies 72 for connecting the first abutting end 71 and the second abutting end 73; the first abutting end 71 abuts against the hook body 62, and the second abutting end 73 abuts against the anti-disengaging body 1. The return spring 7 constantly urges one end of the anti-separation body 1 against the hook head 63, and after a rope or the like is hooked by the hook 6, it is quickly restored from the sprung state (see fig. 1) to the state of urging against the hook head 63.

As shown in fig. 2 and 3, the fixing mechanism 2 is vertically disposed on the inner surface of the anti-separation card main body 1, the fixing mechanism 2 and the reinforcing edge 11 form two frames, a certain distance is provided between the two frames, and each frame accommodates a spring body 72.

Further, the hook neck 61 is provided with a mounting lug 610 with a hole, the anti-falling clamp main body 1 is provided with a pin hole 3, the pin hole 3 penetrates through the reinforcing edge 11 and the two square frames, the mounting lug 610 is accommodated in the space between the two square frames, and the mounting lug 610 is hinged with the pin hole 3 through a pin shaft 8. The stabilizing mechanism 2 not only enhances the hinge strength of the mounting lug 610 and the anti-drop card main body 1, but also reduces the probability that the hinge end is directly damaged in the use process of the anti-drop card main body 1; still reduced the clearance of assembling between anticreep card main part 1 and the installation ear 610 greatly, guaranteed that the anticreep card is when kick-backing, can not take place the situation of anticreep card main part 1 along self width direction skew.

In one embodiment, the end of the anti-separation body 1 where the powerful magnet 5 is installed is provided with an arc-shaped opening, and the arc-shaped opening is tightly attached to the hook head 63. The arrangement of the arc-shaped opening enables the end part of the anti-falling clamp main body 1 to abut against the hook head 63 more tightly, and the anti-falling clamp effect is better.

As shown in fig. 3, in one embodiment, the strong magnet 5 is in the form of a strip, which is tightly fixed to the inner surface of the anti-separation card body 1. When the strong magnet 5 is closely attracted to the hook 63, the anti-separation body 1 is closely attached to the hook 63.

In one embodiment, the width of the anti-slip body 1 is equal to the diameter of the hook body 62.

Preferably, the anti-separation card main body 1 is in an isosceles inverted trapezoid shape, and one end connected with the mounting lug 610 is wider, and the other end abutting against the hook head 63 is narrower. A reinforcing rib for reinforcing the structural strength is provided on the inner surface of the separation preventing body 1.

As shown in fig. 5, the magnetic anti-drop card further comprises a lever assembly 9, the lever assembly 9 is a C-shaped steel with a downward opening, and a notch is formed in an intermediate plate of the C-shaped steel. The lifting hook 6 passes through the notch, the notch is positioned in the transition area of the hook neck 61 and the hook body 62, the side end face of one end of the C-shaped steel is abutted against the inner surface of the anti-falling clamp body 1, and the other end of the C-shaped steel extends out towards one end far away from the hook head 63. The contact point of the notch and the transition region of the hook neck 61 and the hook body 62 is used as a fulcrum, and the other end of the lever component 9 provides gravity, so that the hook head 63 is tilted from the end of the anti-disengaging main body 1 provided with the powerful magnet 5. The application of the lever assembly 9 further strengthens the unhooking prevention effect on the basis of the reset spring 7 and the powerful magnet 5, and carries out triple insurance, so that the lifting hook 6 is safer and more reliable in the construction process. Preferably, the other end of the C-shaped steel can be hung with weights and the like.

Preferably, the width of the middle plate of the C-shaped steel is equal to the width of the two side plates.

The magnetic anti-release card comprises an anti-release card body 1, wherein one end of the anti-release card body 1 is hinged to a hook neck 61, and the other end of the anti-release card body is provided with a strong magnet 5; the inner surface of the anti-drop clamp body 1 is provided with a return spring 7; the magnetic anti-release card can not only enable the end part of the anti-release card main body 1 to be abutted against the hook head 63 under the action of the reset spring 7 to prevent unhooking; under the action of the strong magnet 5, the strong magnet 5 and the hook head 63 are closely attracted due to magnetic attraction, so that the end part of the anti-unhooking main body 1 is abutted against the hook head 63 to prevent unhooking.

The magnetic anti-falling clamp solves the problems that the reset spring 7 is frequently used, the material is fatigue, the elasticity is reduced, and the anti-falling clamp cannot be completely tightly closed with the lifting hook 6; a strong closing force is formed by the attraction force of the strong magnet 5 at the closed loop end and the spring counter force; even if the function of the return spring 7 is completely lost, the manual assistance can be realized, and the safety requirement of the closed-loop lifting hook 6 can be met by the adsorption of the strong magnet 5; the magnetic anti-unhooking card realizes double insurance for preventing unhooking, and simultaneously the lever assembly 9 further provides triple insurance for preventing unhooking; and the magnetic attraction anti-disengaging structure of the application is simple, low in manufacturing cost, good in anti-disengaging effect, convenient to implement and wide in application range, meets the anti-disengaging high-safety performance requirement of the lifting hook lifting appliance, and further improves the anti-disengaging use timeliness.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides an anticreep card is inhaled to magnetism installs in lifting hook (6), lifting hook (6) contain neck (61), shank (62) and gib head (63), its characterized in that: the magnetic anti-release clamp comprises an anti-release clamp main body (1), wherein the anti-release clamp main body (1) is in a strip plate shape, one end of the anti-release clamp main body is hinged to the hook neck (61), and the other end of the anti-release clamp main body is provided with a strong magnet (5);

a return spring (7) is arranged on the inner surface of the anti-falling clamp main body (1); and one end of the anti-falling clamp main body (1) provided with the strong magnet (5) is propped against the hook head (63) under the action of the return spring (7) and the strong magnet (5).

2. The magnetic anti-drop card of claim 1, wherein: the two side edges of the anti-falling clamp main body (1) are provided with vertical inward reinforcing edges (11).

3. The magnetic anti-drop card of claim 2, wherein: the reset spring (7) comprises a first abutting end (71), a second abutting end (73) and two spring bodies (72) for connecting the first abutting end (71) and the second abutting end (73); the first abutting end (71) abuts against the hook body (62), and the second abutting end (73) abuts against the anti-disengaging main body (1).

4. The magnetic anti-drop card of claim 3, wherein: the anti-drop card main part (1) internal surface sets up firm mechanism (2) perpendicularly, firm mechanism (2) with strengthen limit (11) and form two square frames, have certain interval between two square frames, every square frame holds one spring body (72).

5. The magnetic anti-drop card of claim 4, wherein: the hook neck (61) is provided with a mounting lug (610) with a hole, the anti-falling clamp main body (1) is provided with a pin hole (3), the pin hole (3) penetrates through the reinforcing edge (11) and the two square frames, the mounting lug (610) is accommodated in the space between the two square frames, and the mounting lug (610) is hinged to the pin hole (3) through a pin shaft (8).

6. The magnetic anti-drop card of claim 1, wherein: an arc-shaped opening is formed in one end, where the powerful magnet (5) is installed, of the anti-falling clamp main body (1), and the arc-shaped opening is tightly attached to the hook head (63).

7. The magnetic anti-drop card of claim 1, wherein: the strong magnet (5) is in a strip shape and is tightly attached and fixed on the inner surface of the anti-falling clamp main body (1).

8. The magnetic anti-drop card of claim 1, wherein: the width of the anti-falling clamp main body (1) is equal to the diameter of the hook body (62).

9. The magnetic anti-drop card of claim 8, wherein: the anti-drop card main part (1) is in an isosceles inverted trapezoid shape, and stiffening ribs for enhancing the structural strength are arranged on the inner surface of the anti-drop card main part (1).

10. The magnetic anti-drop card of any one of claims 1-9, wherein: the magnetic attraction anti-falling clamp also comprises a lever assembly (9), wherein the lever assembly (9) is C-shaped steel with a downward opening, and a notch is formed in the middle plate of the C-shaped steel;

the lifting hook (6) penetrates through the notch, the notch is located in a transition area of the hook neck (61) and the hook body (62), the side end face of one end of the C-shaped steel is abutted to the inner surface of the anti-falling clamp main body (1), and the other end of the C-shaped steel extends out towards one end far away from the hook head (63).

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