CN213536996U - Poor locking-type lifting hook anticreep device of rotational positioning - Google Patents
Poor locking-type lifting hook anticreep device of rotational positioning Download PDFInfo
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- CN213536996U CN213536996U CN202021912909.1U CN202021912909U CN213536996U CN 213536996 U CN213536996 U CN 213536996U CN 202021912909 U CN202021912909 U CN 202021912909U CN 213536996 U CN213536996 U CN 213536996U
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Abstract
The invention provides a rotary positioning difference locking type lifting hook anti-falling device, which comprises an anti-falling mechanism sleeved on a lifting hook straight handle, wherein the anti-falling mechanism is limited between an upper retainer ring and a lower retainer ring, and the upper retainer ring and the lower retainer ring are sleeved and fixed on the straight handle; the anti-falling mechanism comprises a fixed ring sleeved on the straight handle, and two anti-falling baffles are symmetrically arranged on the outer side of the fixed ring; and a locking assembly is arranged between the lower retainer ring and the ferrule. The anti-falling device is reasonable in structural design, the positioning pin can be conveniently lowered and lifted by the aid of the lifting rod, positioning and fixing of the anti-falling mechanism are achieved by the aid of the positioning pin, reliability is high, the anti-falling mechanism cannot rotate after the positioning pin is inserted into the bottom sleeve, the upper side of the lifting hook can be always kept in a closed state, and the anti-falling device is excellent in use reliability, so that the anti-falling device has better use performance and higher safety.
Description
Technical Field
The invention belongs to the technical field of hoisting equipment, and particularly relates to a rotary positioning differential lock type lifting hook anti-falling device.
Background
The hoisting equipment usually uses a hook as a lifting appliance, and during hoisting operation, the lifting appliance is lifted by using a hanging strip, and in order to avoid the hanging strip from slipping off, an unhooking prevention device is usually required to be arranged on the hook. However, most of the existing anti-unhooking devices adopt a hinged pressure plate, the pressure plate is pressed downwards through a spring, and the purpose is to keep the upper end of the lifting hook in a closed state. However, such an anti-drop device has low reliability, the spring is easy to lose efficacy, and the design form of pressing the pressure plate by the spring pressure is easy to shake when in use, and the pressure plate is easy to deviate, so that the upper end of the lifting hook is not in a closed state, and a potential safety hazard exists, therefore, improvement is needed.
Disclosure of Invention
In view of this, the invention provides a rotation positioning differential lock type hook anti-drop device, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a rotary positioning differential lock type lifting hook anti-disengaging device comprises an anti-disengaging mechanism sleeved on a lifting hook straight handle, wherein the anti-disengaging mechanism is limited between an upper retainer ring and a lower retainer ring, and the upper retainer ring and the lower retainer ring are sleeved and fixed on the straight handle; the anti-falling mechanism comprises a fixed ring sleeved on the straight handle, and two anti-falling baffles are symmetrically arranged on the outer side of the fixed ring; and a locking assembly is arranged between the lower retainer ring and the ferrule.
Further, the locking assembly comprises a bottom sleeve fixed on the lower retaining ring and a middle sleeve correspondingly arranged on the fixed ring; a positioning pin is inserted on the middle sleeve, a lifting rod is vertically arranged at the upper part of the positioning pin, and a limiting section is formed at the part of the positioning pin above the lifting rod; a vertical groove is formed in the middle sleeve corresponding to the lifting rod, and the upper end of the vertical groove is of an opening structure.
Furthermore, a top sleeve is arranged on the fixed ring corresponding to the middle sleeve, and the top sleeve and the middle sleeve are coaxially arranged.
Furthermore, an auxiliary positioning sleeve is further arranged on the lower retaining ring, and an included angle formed by the auxiliary positioning sleeve and a central connecting line of the lower retaining ring and a central connecting line of the bottom sleeve and the lower retaining ring is 60-120 degrees.
Furthermore, the upper retainer ring comprises an upper retainer ring left valve ring and an upper retainer ring right valve ring which are fixed by a connecting piece.
Furthermore, the two ends of the left ring of the upper retainer ring are respectively provided with a left connecting part, the two ends of the right ring of the upper retainer ring are respectively provided with a right connecting part corresponding to the left connecting parts of the corresponding sides, and the left connecting parts and the right connecting parts are fixed through the connecting piece.
Further, the bottom sleeve is fixed on the lower retaining ring through a fixing block.
Further, the anti-drop baffle comprises a fixing part and a pressing plate part, wherein the fixing part is arranged on the pressing plate part in an inclined and downward mode; the fixing part is fixed with the fixing ring.
Compared with the prior art, the invention has the following advantages:
the anti-falling device is reasonable in structural design, the positioning pin can be conveniently lowered and lifted by the aid of the lifting rod, positioning and fixing of the anti-falling mechanism are achieved by the aid of the positioning pin, reliability is high, the anti-falling mechanism cannot rotate after the positioning pin is inserted into the bottom sleeve, the upper side of the lifting hook can be always kept in a closed state, and the anti-falling device is excellent in use reliability, so that the anti-falling device has better use performance and higher safety. In addition, according to the in-service use needs, rotate anti-disengaging mechanism and insert the locating pin in the auxiliary positioning sleeve to hang preparation operations such as area before convenient hoist and mount.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram of the present invention in an applied state;
FIG. 4 is a schematic perspective view of the present invention;
FIG. 5 is a schematic view of a portion of a locating pin in an inventive embodiment of the present invention;
fig. 6 is a schematic view of a middle sleeve in an embodiment of the invention.
Description of reference numerals:
1-hook straight shank; 2-upper retainer ring; 3-lower retainer ring; 4-an anti-falling mechanism; 5-a fixed ring; 6-anti-falling baffle; 7-a bottom sleeve; 8-a middle sleeve; 9-a positioning pin; 10-lifting a pull rod; 11-a limiting section; 12-vertical slots; 13-a top sleeve; 14-an auxiliary positioning sleeve; 15-upper retainer ring left valve ring; 16-upper annulus right annulus; 17-a connector; 18-left connecting portion; 19-right connecting part; 20-fixing block; 21-a fixed part; 22-a platen portion; 23-hook body.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
The utility model provides a poor locking-type lifting hook anticreep device of rotational positioning, as shown in fig. 1 to 6, includes the anti-disengaging mechanism 4 of suit on lifting hook straight shank 1, and this anti-disengaging mechanism is restricted between last retaining ring 2 and lower retaining ring 3, go up retaining ring and lower retaining ring and all suit and fix on the straight shank, as the example, can process out the annular on the straight shank, go up retaining ring, retainer plate and lower retaining ring and all install in the annular, can avoid anti-disengaging mechanism drunkenness in the direction of height, of course, technical personnel in the art also can take other fixed modes, no longer gives details here. The anti-falling mechanism comprises a fixed ring 5 sleeved on the straight handle, and two anti-falling baffles 6 are symmetrically arranged on the outer side of the fixed ring; and a locking assembly is arranged between the lower retainer ring and the ferrule.
In an alternative embodiment, the specific structure of the anti-dropping baffle may be: comprises a fixed part 21 and a pressing plate part 22 arranged on the fixed part obliquely downwards; the fixing part is fixed with the fixing ring, the lower end of the pressing plate part is close to the top end of the hook body of the lifting hook, so that the upper side of the hook body is of a closed structure, and the lifting belt is prevented from falling off from the lifting hook.
The locking assembly comprises a bottom sleeve 7 fixed on the lower retaining ring and a middle sleeve 8 correspondingly arranged on the fixed ring; a positioning pin 9 is inserted on the middle sleeve, a lifting rod 10 is vertically arranged at the upper part of the positioning pin, and a limiting section 11 is formed at the part of the positioning pin above the lifting rod; the middle sleeve is provided with a vertical groove 12 corresponding to the lifting rod, and the upper end of the vertical groove is of an opening structure. The locating pin is lifted or transferred to the permission utilization lifting rod, rotates anti-disengaging mechanism, makes the locating pin adjust bottom sleeve well, transfers the locating pin, with retainer plate and lower retaining ring within a definite time formation, and then makes anti-disengaging mechanism fixed, anti-disengaging mechanism can not rotate this moment.
It should be noted that, the position of middle part sleeve and bottom sleeve is confirmed according to the coupler body 23 position of lifting hook, guarantees that the locating pin is spacing retainer plate and lower retainer plate when, and the anticreep baffle of retainer plate both sides just in time is in the lifting hook top, seals the lifting hook upside, avoids the suspender of ditch inslot to break away from when using. Owing to utilize the locating pin fixed back, anti-disengaging mechanism can not produce the rotation again, can remain the closed condition of lifting hook upside throughout, and the reliability is splendid, and consequently, this anti-disengaging device has better performance, and the security is higher.
The fixed ring is provided with a top sleeve 13 corresponding to the middle sleeve, and the top sleeve and the middle sleeve are coaxially arranged. When the positioning pin is lifted up, the limiting section is inserted into the top sleeve and is propped against the lifting rod by the lower edge of the top sleeve, so that the positioning pin is prevented from being separated from the middle sleeve, and the positioning between the positioning pin and the bottom sleeve is released.
The lower retainer ring is also provided with an auxiliary positioning sleeve 14, the auxiliary positioning sleeve and the center connecting line of the lower retainer ring form an included angle of 60-120 degrees with the center connecting line of the bottom sleeve and the center connecting line of the lower retainer ring, namely, when the positioning pin is inserted into the auxiliary positioning sleeve, the anti-falling baffle of the anti-falling mechanism and the hook body part of the lifting hook are in a staggered state, so that the hanging of the lifting belt is facilitated, the operation of workers is not hindered, and therefore, the preparation work before the lifting is facilitated.
In an alternative embodiment, the upper retainer comprises an upper retainer left ring 15 and an upper retainer right ring 16, which are secured together by a connector 17. Specifically, two ends of the left ring of the upper retainer ring may be respectively provided with a left connecting portion 18, two ends of the right ring of the upper retainer ring may be respectively provided with a right connecting portion 19 corresponding to the left connecting portion of the corresponding side, and the left connecting portion and the right connecting portion may be fixed by the connecting member, which is typically a bolt. The lower retainer ring structure can adopt the same structure as the upper retainer ring, and the description is omitted.
In order to avoid the deformation of the bottom sleeve, the middle sleeve and the auxiliary positioning sleeve during welding and fixing, a fixing block can be used for transition, for example, the bottom sleeve is fixed on the lower retainer ring through the fixing block 20, the bottom sleeve is fixed on one side of the fixing block, and the other side of the fixing block is fixed on the lower retainer ring.
The anti-falling device is reasonable in structural design, the positioning pin can be conveniently lowered and lifted by the aid of the lifting rod, positioning and fixing of the anti-falling mechanism are achieved by the aid of the positioning pin, reliability is high, the anti-falling mechanism cannot rotate after the positioning pin is inserted into the bottom sleeve, the upper side of the lifting hook can be always kept in a closed state, and the anti-falling device is excellent in use reliability, so that the anti-falling device has better use performance and higher safety. In addition, according to the in-service use needs, rotate anti-disengaging mechanism and insert the locating pin in the auxiliary positioning sleeve to hang preparation operations such as area before convenient hoist and mount.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a poor locking-type lifting hook anticreep device of rotational positioning which characterized in that: the anti-falling mechanism is limited between an upper retainer ring and a lower retainer ring, and the upper retainer ring and the lower retainer ring are sleeved and fixed on the straight handle; the anti-falling mechanism comprises a fixed ring sleeved on the straight handle, and two anti-falling baffles are symmetrically arranged on the outer side of the fixed ring; and a locking assembly is arranged between the lower retainer ring and the ferrule.
2. The rotational positioning differential lock type hook drop prevention device as claimed in claim 1, wherein: the locking assembly comprises a bottom sleeve fixed on the lower retaining ring and a middle sleeve correspondingly arranged on the fixed ring; a positioning pin is inserted on the middle sleeve, a lifting rod is vertically arranged at the upper part of the positioning pin, and a limiting section is formed at the part of the positioning pin above the lifting rod; a vertical groove is formed in the middle sleeve corresponding to the lifting rod, and the upper end of the vertical groove is of an opening structure.
3. The rotational positioning differential lock type hook drop prevention device as claimed in claim 2, wherein: and a top sleeve is arranged on the fixed ring corresponding to the middle sleeve, and the top sleeve and the middle sleeve are coaxially arranged.
4. The rotational positioning differential lock type hook drop prevention device as claimed in claim 2, wherein: an auxiliary positioning sleeve is further arranged on the lower retaining ring, and an included angle formed by the auxiliary positioning sleeve and a central connecting line of the lower retaining ring and a central connecting line of the bottom sleeve and the lower retaining ring is 60-120 degrees.
5. The rotational positioning differential lock type hook drop prevention device as claimed in claim 1, wherein: the upper retainer ring comprises an upper retainer ring left valve ring and an upper retainer ring right valve ring which are fixed by a connecting piece.
6. The rotational positioning differential lock type hook drop-prevention device as claimed in claim 5, wherein: go up retaining ring left side valve ring both ends and be equipped with left connecting portion respectively, go up retaining ring right side valve ring both ends and correspond the left connecting portion of corresponding side respectively and be equipped with right connecting portion, pass through between left connecting portion and the right connecting portion the connecting piece is fixed.
7. The rotational positioning differential lock type hook drop prevention device as claimed in claim 2, wherein: the bottom sleeve is fixed on the lower retaining ring through a fixing block.
8. The rotational positioning differential lock type hook drop prevention device as claimed in claim 1, wherein: the anti-falling baffle comprises a fixing part and a pressing plate part which is arranged on the fixing part in an inclined and downward mode; the fixing part is fixed with the fixing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021912909.1U CN213536996U (en) | 2020-09-04 | 2020-09-04 | Poor locking-type lifting hook anticreep device of rotational positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021912909.1U CN213536996U (en) | 2020-09-04 | 2020-09-04 | Poor locking-type lifting hook anticreep device of rotational positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213536996U true CN213536996U (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021912909.1U Active CN213536996U (en) | 2020-09-04 | 2020-09-04 | Poor locking-type lifting hook anticreep device of rotational positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213536996U (en) |
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2020
- 2020-09-04 CN CN202021912909.1U patent/CN213536996U/en active Active
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