CN215626122U - Unhooking prevention device for hoisting equipment - Google Patents

Abstract

The utility model discloses an anti-unhooking device for hoisting equipment, and belongs to the technical field of crane machinery. The anti-dropping plug board comprises an anti-dropping plug board and a welding ring for welding on hoisting equipment, wherein the center of the welding ring is provided with a mounting hole for a pin shaft to pass through, two through positioning grooves are symmetrically arranged on the welding ring in a circumferential direction, and the positions of the pin shaft corresponding to the positioning grooves are provided with annular grooves; wherein set up on the anticreep picture peg with welding ring matched with opening, the opening both ends of anticreep picture peg are spacing section, two spacing section correspond the constant head tank that passes the welding ring both sides, and in the bottom of two spacing sections imbeds the annular groove. In order to solve the problems, the utility model provides the unhooking prevention device for the hoisting equipment, which is simple in structure and convenient and fast to disassemble and assemble, can effectively prevent the pin shaft of the hoisting sling from moving, avoids safety accidents caused by the movement or falling of the pin shaft, and improves the use safety of the hoisting equipment.

Description

Unhooking prevention device for hoisting equipment

Technical Field

The utility model belongs to the technical field of crane machinery, and particularly relates to an anti-unhooking device for hoisting equipment.

Background

Hoisting equipment refers to electromechanical equipment used to refer to the handling or movement of heavy objects. An elevator whose range is defined as a rated load capacity of 0.5t or more; the lifting height is greater than or equal to 1t, and the lifting height is greater than or equal to 2m, and the electric hoist, the hydraulic truck, the forklift equipment and the like are fixed in a bearing mode.

In the use process of the hoisting sling, in order to prevent potential safety hazards and equipment damage caused by the separation of a lifting sling lifting lug and a crane lifting hook, an anti-unhooking device needs to be installed on the crane lifting hook or the lifting sling to achieve the protection purpose. The anti-drop device of the existing hoisting sling pin shaft is hinged with one end of the pin shaft through the gravity ball to solve the problems that the pin shaft drops and the like, but because the adjusting range of the gravity ball is effective, when the pulling force of the pin shaft exceeds the self weight of the gravity ball, the pin shaft still can move and even drop and the like, so that the anti-drop device which can effectively prevent the pin shaft from moving and even dropping and is suitable for hoisting equipment is urgently needed to be designed.

Through retrieval, some patents have been published on the application of the anti-unhooking device in the related art, such as chinese patent application No.: 2019206807559, discloses an anti-drop device of a connecting pin shaft of a crane girder, which comprises an inductive switch, a crane girder and a connecting pin shaft, wherein the crane girder is provided with a groove matched with the tail end of the connecting pin shaft, so that the tail end of the connecting pin shaft can be inserted into the groove for fixation; a sinking groove is formed in the crane main beam, an anti-falling component for preventing the connecting pin shaft from falling is arranged in the sinking groove, and an inductive switch matched with the front end of the anti-falling component is arranged at the upper end of the inner peripheral side wall of the sinking groove; the peripheral side wall of the tail end of the connecting pin shaft is annularly provided with a positioning groove matched with the anti-falling component, so that the anti-falling component is matched with the positioning groove to fix the connecting pin shaft on a crane main beam; the inductive switch is electrically connected with the crane main controller; the device simple structure, the simple operation can effectually prevent that connecting pin from droing, reduces the hoist and influences equipment normal operating because of the round pin axle drops.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

In order to solve the problems, the utility model provides the unhooking prevention device for the hoisting equipment, which is simple in structure and convenient and fast to disassemble and assemble, can effectively prevent the pin shaft of the hoisting sling from moving, avoids safety accidents caused by the movement or falling of the pin shaft, and improves the use safety of the hoisting equipment.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model discloses an anti-unhooking device for hoisting equipment, which comprises an anti-unhooking inserting plate and a welding ring, wherein the welding ring is used for being welded on the hoisting equipment, the center of the welding ring is provided with a mounting hole for a pin shaft to pass through, the welding ring is symmetrically provided with two penetrating positioning grooves around the circumferential direction, and the pin shaft is provided with an annular groove at the position corresponding to the positioning grooves; wherein set up on the anticreep picture peg with welding ring matched with opening, the opening both ends of anticreep picture peg are spacing section, two spacing section correspond the constant head tank that passes the welding ring both sides, and in the bottom of two spacing sections imbeds the annular groove.

As a further improvement of the utility model, the anti-falling plugboard is provided with an embedded groove in a U-shaped structure, two ends of the embedded groove are symmetrically provided with vertically extending limiting sections, and the inner side of the embedded groove is provided with an arc section matched with the welding ring.

As a further improvement of the utility model, the thickness of the anti-drop inserting plate is kept consistent with the width of the positioning groove, and the width of the annular groove is also kept consistent with the width of the positioning groove.

As a further improvement of the utility model, the two ends of the bottom of the limiting section are symmetrically provided with arc chamfers.

As a further improvement of the utility model, the limiting sections sequentially penetrate through the upper part of the positioning groove, the annular groove and the lower part of the positioning groove, and the two limiting sections are tightly attached to the two sides of the pin shaft to fix the pin shaft in the welding ring.

As a further improvement of the utility model, the pin comprises a pin body, one end of the pin body is provided with an annular groove, the end part of the pin body close to the annular groove is also provided with an external connection section, and the external diameter size of the external connection section is larger than that of the pin body.

As a further improvement of the utility model, the external connection section is also provided with a buckle.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the unhooking prevention device for the hoisting equipment, the anti-tripping inserting plate, the welding ring and the positioning groove thereof and the annular groove on the pin shaft are matched with each other for use, so that the situation that the pin shaft moves or even falls off can be effectively prevented, and the use safety of the hoisting equipment is effectively protected.

(2) According to the unhooking prevention device for the hoisting equipment, the arc-shaped sections matched with the welding rings are arranged on the inner sides of the embedded grooves, when the limiting sections on the two sides are inserted into the positioning grooves, the inner sides of the embedded grooves are attached to the peripheries of the welding rings, and high attaching degree and high stability of connection between the anti-falling inserting plates and the welding rings are further guaranteed.

(3) According to the unhooking prevention device for the hoisting equipment, the thickness of the unhooking prevention inserting plate is kept consistent with the width of the positioning groove, the width of the annular groove is also kept consistent with the width of the positioning groove, the anti-falling inserting plate can be effectively prevented from shaking in the positioning groove, two limiting sections of the anti-falling inserting plate can be guaranteed to be clamped on two sides of the pin shaft, the connection stability is effectively guaranteed, the pin shaft can be further prevented from shifting, and the safety of the hoisting equipment is improved.

Drawings

Fig. 1 is a schematic view illustrating a structure of an anti-unhooking device for lifting equipment according to the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of the anti-falling plugboard of the present invention;

FIG. 4 is a schematic view of a solder ring according to the present invention;

fig. 5 is a schematic structural view of the pin shaft of the present invention.

The reference numbers in the figures are:

1. an anti-drop plugboard; 11. a limiting section; 12. a groove is embedded; 2. welding a ring; 21. positioning a groove; 3. a pin shaft; 31. a pin shaft body; 32. an annular groove; 33. an external connection section; 34. and (5) buckling.

Detailed Description

For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

With reference to fig. 1-5, the mousing-hook device for hoisting equipment of this embodiment includes anticreep picture peg 1 and welding ring 2 for welding on hoisting equipment, as shown in fig. 4, the center of welding ring 2 in this embodiment is provided with a mounting hole for pin shaft 3 to pass through, two penetrating positioning grooves 21 are symmetrically provided around circumference on welding ring 2, one end of positioning groove 21 is communicated with the mounting hole of welding ring 2, the other end of positioning groove 21 is communicated with the outside, and annular groove 32 is provided at the position on pin shaft 3 corresponding to positioning groove 21. Wherein offer on the anticreep picture peg 1 with weld ring 2 matched with opening, the opening both ends of anticreep picture peg 1 are spacing section 11, two spacing section 11 correspond the constant head tank 21 that passes weld ring 2 both sides, and in embedding annular groove 32 in the bottom of two spacing sections 11, can effectively fix round pin axle 3 in weld ring 2 through anticreep picture peg 1, and simple structure, convenient to use makes things convenient for the dismouting. This embodiment is through anticreep picture peg 1, weld ring 2 and constant head tank 21 and the mutually supporting use of the annular groove 32 on the round pin axle 3, can prevent effectively that the drunkenness from appearing in round pin axle 3, the condition that drops even, has effectively protected hoisting equipment's safe in utilization.

As shown in fig. 3, offer the embedded groove 12 that is the U type structure on the anticreep picture peg 1 in this embodiment, the both ends symmetry of embedded groove 12 is provided with vertical spacing 11 that extends, and the inboard of embedded groove 12 be equipped with welding ring 2 matched with segmental arc, when the spacing 11 of both sides inserts in the constant head tank 21, the inboard of embedded groove 12 is laminated with welding ring 2's periphery mutually, has further guaranteed high laminating degree and the high stability of being connected between anticreep picture peg 1 and the welding ring 2. The thickness of anticreep picture peg 1 keeps unanimous with the width of constant head tank 21, and the width of annular groove 32 also keeps unanimous with the width of constant head tank 21, not only can prevent effectively that anticreep picture peg 1 from appearing rocking in constant head tank 21, can also guarantee that two spacing sections 11 of anticreep picture peg 1 press from both sides tightly in the both sides of round pin axle 3, have effectively guaranteed the stability of connecting, can further prevent that round pin axle 3 from shifting, have improved hoisting equipment's security. The both ends of the bottom of spacing section 11 all are equipped with the arc chamfer symmetrically in this embodiment, are convenient for insert in constant head tank 21 and the annular groove 32, make its operation more smooth and easy.

In this embodiment, the arc angle corresponding to the positioning slot 21 is an obtuse angle, and the angle range is 100-120 °. Spacing section 11 passes constant head tank 21 upper portion, annular groove 32 and constant head tank 21 lower part in proper order, and two spacing sections 11 paste tightly and fix round pin axle 3 in weld ring 2 in the both sides of round pin axle 3, can further effectively realize fixing round pin axle 3 in weld ring 2 steadily, improve the stability of connecting.

As shown in fig. 5, in this embodiment, the pin 3 includes a pin body 31 having a cylindrical structure, an annular groove 32 is formed at one end of the pin body 31, an external connection section 33 is further disposed at an end of the pin body 31 close to the annular groove 32, an outer diameter of the external connection section 33 is larger than an outer diameter of the pin body 31, and a buckle 34 is further disposed on the external connection section 33, so that a user can hold the pin conveniently.

When this embodiment specifically uses, earlier 2 covers of welding ring in 3 peripheries of round pin axle, the position of adjustment welding ring 2, make constant head tank 21 on the welding ring 2 and sell epaxial annular groove 32 position phase correspondence, pass constant head tank 21 upper portion in proper order with two spacing sections 11 of anticreep picture peg 1 again, annular groove 32 and constant head tank 21 lower part, can effectively fix round pin axle 3 in welding ring 2 through anticreep picture peg 1, will weld 2 welding suitable positions on hoisting equipment at last with welding ring, can accomplish the spacing protection of anticreep to round pin axle 3, can effectively protect the safe in utilization of round pin axle 3 and hoisting equipment.

The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims (7)

1. An mousing-hook device for hoisting equipment, characterized in that: the anti-dropping plug board comprises an anti-dropping plug board (1) and a welding ring (2) welded on hoisting equipment, wherein a mounting hole for a pin shaft (3) to pass through is formed in the center of the welding ring (2), two penetrating positioning grooves (21) are symmetrically formed in the welding ring (2) in a circumferential direction, and an annular groove (32) is formed in the position, corresponding to the positioning grooves (21), of the pin shaft (3); wherein, the anti-falling plugboard (1) is provided with an opening matched with the welding ring (2), the two ends of the opening of the anti-falling plugboard (1) are both limiting sections (11), the two limiting sections (11) correspondingly pass through the positioning grooves (21) on the two sides of the welding ring (2), and the bottom of the two limiting sections (11) is embedded into the annular groove (32).

2. An mousing-hook device for lifting equipment according to claim 1, characterised in that: an embedded groove (12) which is of a U-shaped structure is formed in the anti-falling inserting plate (1), vertically extending limiting sections (11) are symmetrically arranged at two ends of the embedded groove (12), and arc sections matched with the welding rings (2) are arranged on the inner sides of the embedded groove (12).

3. An mousing-hook device for lifting apparatus according to claim 2, wherein: the thickness of the anti-dropping flashboard (1) is consistent with the width of the positioning groove (21), and the width of the annular groove (32) is also consistent with the width of the positioning groove (21).

4. An mousing-hook device for lifting apparatus according to claim 3, wherein: arc chamfers are symmetrically arranged at two ends of the bottom of the limiting section (11).

5. An mousing-hook device for lifting equipment according to claim 1, characterised in that: the limiting sections (11) sequentially penetrate through the upper part of the positioning groove (21), the annular groove (32) and the lower part of the positioning groove (21), and the two limiting sections (11) are tightly attached to the two sides of the pin shaft (3) to fix the pin shaft (3) in the welding ring (2).

6. An mousing-hook device for lifting equipment according to any of claims 1-5, characterised in that: the pin shaft (3) comprises a pin shaft body (31), an annular groove (32) is formed in one end of the pin shaft body (31), an external connection section (33) is further arranged at the end part, close to the annular groove (32), of the pin shaft body (31), and the outer diameter of the external connection section (33) is larger than that of the pin shaft body (31).

7. An mousing-hook device for lifting apparatus according to claim 6, wherein: the external connection section (33) is also provided with a ring buckle (34).

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