CN215402589U - Anti-falling device for lifting hook and lifting sling - Google Patents
Anti-falling device for lifting hook and lifting sling Download PDFInfo
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- CN215402589U CN215402589U CN202120582456.9U CN202120582456U CN215402589U CN 215402589 U CN215402589 U CN 215402589U CN 202120582456 U CN202120582456 U CN 202120582456U CN 215402589 U CN215402589 U CN 215402589U
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Abstract
The utility model discloses an anti-drop device and a lifting sling for a lifting hook, wherein the anti-drop device comprises: control first anticreep piece and the second anticreep piece that links to each other, first connecting point and second connecting point have between first anticreep piece and the second anticreep piece, inject spacing space between second anticreep piece and the first anticreep piece, when the open end at lifting hook was installed to the anticreep device, lifting hook's open end was suitable for and holds in spacing space, and first connecting point and second connecting point lie in lifting hook's both sides around respectively. According to the anti-drop device for the lifting hook provided by the embodiment of the utility model, in the process of lifting operation by using the lifting hook provided with the anti-drop device, the anti-drop device is not easy to deform even being influenced by external force such as hoisted objects due to high structural strength of the anti-drop device, so that the problem of anti-drop failure caused by deformation can be prevented or reduced.
Description
Technical Field
The utility model relates to the technical field of hoisting, in particular to an anti-falling device for a hoisting hook and a hoisting sling.
Background
The hoisting operation is widely applied to various industries such as the mechanical industry, the building industry, the freight industry and the like, the safety requirement is higher and higher, the safety accident is easily caused by improper operation or equipment failure and other abnormal problems, the hoisting hook is used as the essential equipment in the hoisting operation, the use safety is important, and the anti-falling device is an important safety measure.
The anti-falling device of the lifting hook in the related art is basically a spring locking piece, the spring locking piece is fixed on the lifting hook through a fixing bolt, and the locking piece is bounced to be clamped inside an opening of the lifting hook through a spring to realize the anti-falling. However, the locking plate has low strength, and the lifted hanging object is generally heavy, so that the locking plate is deformed gradually after long-time use, or abnormal stress of the locking plate is caused by improper operations such as askew pulling and inclined hanging of a lifting operator in the use process, the locking plate is deformed and fails to work, and the original anti-falling function cannot be realized.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an anti-separation device for a lifting hook, which has high structural strength and can prevent or reduce the problem of anti-separation failure due to deformation during a lifting operation.
The utility model also provides a hoisting sling with the anti-falling device.
According to a first aspect of the utility model, the anti-dropping device for the lifting hook comprises: control first anticreep piece and the second anticreep piece that links to each other, first anticreep piece with first tie point and second tie point have between the second anticreep piece, the second anticreep piece with inject spacing space between the first anticreep piece anticreep device is installed during lifting hook's open end, lifting hook's open end is suitable for to hold in spacing space, first tie point with the second tie point is located respectively lifting hook's front and back both sides.
According to the anti-disengaging device for the lifting hook provided by the embodiment of the utility model, the anti-disengaging device is provided with the first anti-disengaging part and the second anti-disengaging part which are connected left and right, so that the anti-disengaging device has higher structural strength, when the anti-disengaging device is arranged at the open end of the lifting hook for use, the anti-disengaging device can be reliably arranged on the lifting hook by clamping the first anti-disengaging part and the second anti-disengaging part at the left side and the right side of the lifting hook, and in the process of using the lifting hook provided with the anti-disengaging device for lifting, the anti-disengaging device is not easily deformed even being influenced by external force such as hoisted objects due to the higher structural strength of the anti-disengaging device, so that the problem of anti-disengaging failure caused by deformation can be prevented or reduced.
According to some embodiments of the present invention, the first anti-drop member includes a first anti-drop body and a first fixing portion provided on the first anti-drop body, the second anti-drop member includes a second anti-drop body and a second fixing portion provided on the second anti-drop body, the second anti-drop body is connected to the first anti-drop body, the first connection point and the second connection point are provided between the second anti-drop body and the first anti-drop body, the limiting space is defined between the second anti-drop body and the first anti-drop body, and both the first fixing portion and the second fixing portion are adapted to be detachably connected to the lifting hook.
In some optional embodiments of the utility model, the first fixing portion is connected to an upper side of the first anti-drop body, the second fixing portion is connected to an upper side of the second anti-drop body, the first fixing portion and the second fixing portion are both in a lug structure, and both the first fixing portion and the second fixing portion are connected to the lifting hook through a first fastener.
In some optional embodiments of the present invention, the first anti-drop body includes a first main body section, two first bending sections and two first connecting sections, the first main body section extends along a front-back direction, the two first connecting sections are connected to front and back sides of the first main body section, each first connecting section is connected to the first main body section through the first bending section, an included angle is formed between the first bending section and the first connecting section, and an included angle is formed between the first bending section and the first main body section; the second anticreep body includes second main part section, two second buckle sections and two second linkage segments, the second main part section extends along the fore-and-aft direction, two the second linkage segment is connected both sides around the second main part section, every the second linkage segment passes through the second buckle section with the second main part section links to each other, the second buckle section with contained angle just has between the second linkage segment the second buckle section with contained angle has between the second main part section, two the second linkage segment respectively with two the first linkage segment links to each other and forms respectively first connecting point with the second connecting point.
In some optional embodiments of the utility model, the first anti-drop body and the second anti-drop body are both metal rods.
According to some embodiments of the utility model, the first and second retaining members are identical.
According to some embodiments of the utility model, the first anti-slip part is fixed relative to the second anti-slip part at the first connection point, the first anti-slip part is fixed relative to the second anti-slip part at the second connection point, and the first connection point and the second connection point are detachably connected.
In some optional embodiments of the utility model, the first and second retaining members are connected by a second fastener at the first connection point, and the first and second retaining members are connected by a third fastener at the second connection point.
According to some embodiments of the utility model, the first anti-slip part is rotatable relative to the second anti-slip part at the first connection point, the first anti-slip part is fixed relative to the second anti-slip part at the second connection point, and the second connection point is detachably connected.
A lifting spreader according to an embodiment of the second aspect of the utility model comprises: a lifting hook; and the anti-falling device is arranged at the opening end of the lifting hook, and is the anti-falling device according to the embodiment of the first aspect of the utility model.
According to the lifting sling provided by the embodiment of the utility model, the anti-falling device is arranged, when the anti-falling device is arranged at the opening end of the lifting hook for use, the first anti-falling part and the second anti-falling part are clamped at the left side and the right side of the lifting hook, so that the anti-falling device can be reliably arranged on the lifting hook, and the anti-falling device is not easily deformed even being influenced by external force such as hoisted objects and the like due to high structural strength of the anti-falling device in the process of lifting operation by using the lifting hook provided with the anti-falling device, so that the problem of anti-falling failure caused by deformation can be prevented or reduced.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a lifting spreader according to some embodiments of the present invention;
fig. 2 is a schematic view of another angle of the lifting spreader of fig. 1;
FIG. 3 is a top view of the anti-run out apparatus of FIG. 1;
fig. 4 is a sectional view of the anti-drop device of fig. 1.
Reference numerals:
a lifting spreader 100;
a lifting hook 10; an opening 101; an open end 102;
an anti-drop device 30;
a first anti-slip member 3; a first run-off prevention body 31; a first body segment 311; a first bend section 312; a first connection section 313; a first fixing portion 32;
a second anti-slip member 4; a second run-off preventing body 41; a second body segment 411; a second bend section 412; a second connection segment 413; a second fixing portion 42;
a first connection point 301; a second connection point 302; a spacing space 303;
a first fastener 51; a second fastener 52; and a third fastener 53.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1-4, a retaining device 30 for a lifting hook 10 according to an embodiment of the present invention will be described.
The anti-drop device 30 for a lifting hook 10 according to the first embodiment of the present invention comprises: first anticreep piece 3 and second anticreep piece 4 that link to each other about, first anticreep piece 3 and second anticreep piece 4 relative setting and link to each other in the left and right sides direction, first connection point 301 and second connection point 302 have between first anticreep piece 3 and the second anticreep piece 4, first anticreep piece 3 and second anticreep piece 4 link to each other through the connection structure of first connection point 301 department and the connection structure of second connection point 302 department, first connection point 301 and second connection point 302 are located first anticreep piece 3 both ends around respectively, first connection point 301 and second connection point 302 are located second anticreep piece 4 both ends around respectively, inject spacing space 303 between second anticreep piece 4 and the first anticreep piece 3.
When the anti-falling device 30 is installed at the open end 102 of the lifting hook 10, the open end 102 of the lifting hook 10 is suitable for being accommodated in the limiting space 303, the outer side wall of the open end 102 of the lifting hook 10 abuts against the first anti-falling part 3 and the second anti-falling part 4, the first connection point 301 and the second connection point 302 are respectively located at the front side and the rear side of the lifting hook 10, and the anti-falling device 30 can be reliably installed on the lifting hook 10 by clamping the first anti-falling part 3 and the second anti-falling part 4 at the left side and the right side of the lifting hook 10.
For example, when the lifting hook 10 is used for lifting work, the suspended object is hung on the lifting hook 10, the first anti-slip part 3 and the second anti-slip part 4 of the anti-slip device 30 are connected at one of the first connection point 301 and the second connection point 302, the anti-slip device 30 is sleeved on the open end 102 of the lifting hook 10, the first anti-slip part 3 and the second anti-slip part 4 of the anti-slip device 30 are connected at the other of the first connection point 301 and the second connection point 302, the anti-slip device 30 is detachably connected with the lifting hook 10, for example, the first anti-slip part 3 and the second anti-slip part 4 are both connected with the lifting hook 10 through the first fastening member 51, the open end 102 of the lifting hook 10 is limited in the limiting space 303 defined by the first anti-slip part 3 and the second anti-slip part 4, and the anti-slip device 30 is reliably fixed on the lifting hook 10, and the anti-falling device 30 is shielded at the opening 101 of the lifting hook 10, and plays a role in preventing falling.
Through first anticreep piece 3 and the centre gripping of second anticreep piece 4 in lifting hook 10's left and right sides, can be so that anticreep device 30 installs reliably on lifting hook 10, at the in-process that uses lifting hook 10 of installing this anticreep device 30 to carry out the jack-up operation, because anticreep device 30's structural strength is higher, even receive external force influences such as hanging thing, anticreep device 30 is difficult for taking place to warp to can prevent or reduce owing to warp the anticreep inefficacy problem that leads to.
Optionally, the first anti-slip part 3 and the second anti-slip part 4 can simplify the structure of the anti-slip device 30, reduce the material types, and reduce the manufacturing cost of the anti-slip device 30.
According to the anti-drop device 30 for the lifting hook 10 of the embodiment of the utility model, the anti-drop device 30 is provided with the first anti-drop part 3 and the second anti-drop part 4 which are connected left and right, so that the anti-drop device 30 has high structural strength, when the anti-drop device 30 is installed at the open end 102 of the lifting hook 10 for use, the anti-drop device 30 can be reliably installed on the lifting hook 10 by clamping the first anti-drop part 3 and the second anti-drop part 4 at the left and right sides of the lifting hook 10, and in the process of using the lifting hook 10 with the anti-drop device 30 installed, the anti-drop device 30 is not easy to deform due to the high structural strength of the anti-drop device 30 even being influenced by external force such as a hanging object, so that the anti-drop failure problem caused by deformation can be prevented or reduced.
According to some embodiments of the present invention, referring to fig. 1 to 4, the first anti-disengaging member 3 includes a first anti-disengaging body 31 and a first fixing portion 32 disposed on the first anti-disengaging body 31, the second anti-disengaging member 4 includes a second anti-disengaging body 41 and a second fixing portion 42 disposed on the second anti-disengaging body 41, the second anti-disengaging body 41 is connected to the first anti-disengaging body 31, a first connection point 301 and a second connection point 302 are provided between the second anti-disengaging body 41 and the first anti-disengaging body 31, a spacing space 303 is defined between the second anti-disengaging body 41 and the first anti-disengaging body 31, and both the first fixing portion 32 and the second fixing portion 42 are adapted to be detachably connected to the lifting hook 10. By arranging the first anti-drop part 3 to include the first anti-drop body 31 and the first fixing part 32, the first anti-drop part 3 is detachably connected with the lifting hook 10 through the first fixing part 32, so that the first anti-drop part 3 is conveniently detachably connected with the lifting hook 10; through setting up second anticreep piece 4 to include second anticreep body 41 and second fixed part 42, link to each other with lifting hook 10 detachably through second fixed part 42, make things convenient for second anticreep piece 4 to link to each other with lifting hook 10 detachably to it links to each other with lifting hook 10 detachably to have made things convenient for anticreep device 30.
Optionally, the first fixing portion 32 and the first anti-dropping body 31 may be connected by welding, the first fixing portion 32 may be flat, and the first anti-dropping body 31 may be rod-shaped, so that the first anti-dropping part 3 has higher structural strength and is convenient for the first anti-dropping part 3 to be connected with the lifting hook 10.
Optionally, the second fixing portion 42 and the second anti-dropping body 41 may be connected by welding, the second fixing portion 42 may be flat, and the second anti-dropping body 41 may be rod-shaped, so that the structural strength of the second anti-dropping part 4 is high, and the second anti-dropping part 4 is conveniently connected to the lifting hook 10.
In some alternative embodiments of the present invention, referring to fig. 1 to 4, the first fixing portion 32 is connected to the upper side of the first anti-drop body 31, the second fixing portion 42 is connected to the upper side of the second anti-drop body 41, the first fixing portion 32 and the second fixing portion 42 are both in a lug structure, and the first fixing portion 32 and the second fixing portion 42 are both connected to the lifting hook 10 through the first fastening member 51. Therefore, the first fixing portion 32 and the second fixing portion 42 have simple structures, and the first fixing portion 32 and the second fixing portion 42 are conveniently connected with the lifting hook 10. Alternatively, the first fastener 51 may be a bolt.
In some optional embodiments of the present invention, referring to fig. 1 to 4, the first anti-separation body 31 includes a first main body section 311, two first bending sections 312 and two first connecting sections 313, the first main body section 311 extends along a front-back direction, the two first connecting sections 313 are connected to front and back sides of the first main body section 311, each first connecting section 313 is connected to the first main body section 311 through the first bending section 312, an included angle is formed between the first bending section 312 and the first connecting section 313, an included angle is formed between the first bending section 312 and the first main body section 311, both the first main body section 311 and the first connecting section 313 may be straight-line sections, and the first bending section 312 may be arc-shaped. The second anti-drop body 41 includes a second main body segment 411, two second bending segments 412 and two second connecting segments 413, the second main body segment 411 extends along the front-rear direction, the two second connecting segments 413 are connected to the front and rear sides of the second main body segment 411, each second connecting segment 413 is connected to the second main body segment 411 through the second bending segment 412, an included angle is formed between the second bending segment 412 and the second connecting segment 413, an included angle is formed between the second bending segment 412 and the second main body segment 411, both the second main body segment 411 and the second connecting segment 413 can be straight segments, and the second bending segment 412 can be arc-shaped.
The two second connection segments 413 are respectively connected with the two first connection segments 313 to form a first connection point 301 and a second connection point 302, the first connection segment 313 and the second connection segment 413 located on the front side are connected to form the first connection point 301, and the first connection segment 313 and the second connection segment 413 located on the rear side are connected to form the second connection point 302.
By setting first anticreep body 31 and second anticreep body 41 to above-mentioned structure for first anticreep body 31 and second anticreep body 41's simple structure, and make things convenient for first anticreep body 31 and second anticreep body 41 to closely press from both sides the open end 102 of tightly pressing from both sides reliably from lifting hook 10's the left and right sides, improve the anticreep effect.
In some alternative embodiments of the present invention, referring to fig. 1-4, each of the first retaining body 31 and the second retaining body 41 is a metal rod, and the cross section of the metal rod may be circular or polygonal (e.g., rectangular), so that each of the first retaining body 31 and the second retaining body 41 has higher structural strength, and thus the whole retaining device 30 has higher structural strength, is less prone to deformation, and further reduces the risk of retaining failure due to deformation. For example, first anticreep body 31 and second anticreep body 41 all can be formed by forging and processing whole section round steel stick both ends, and intensity is high can not warp easily, and the installation is extremely firm after fixing on lifting hook 10, can play extremely strong anticreep effect.
According to some embodiments of the present invention, referring to fig. 1-4, the first anti-release member 3 is fixed with respect to the second anti-release member 4 at a first connection point 301, the first anti-release member 3 is fixed with respect to the second anti-release member 4 at a second connection point 302, and both the first connection point 301 and the second connection point 302 are detachably connected. Therefore, the anti-slip device 30 can be conveniently installed and fixed, for example, when the anti-slip device 30 is installed and fixed on the lifting hook 10, one end of the first anti-slip member 3 (for example, one of the first connecting sections 313) and one end of the second anti-slip member 4 (for example, one of the second connecting sections 413) can be connected to form the first connecting point 301, then the anti-slip device 30 is sleeved on the lifting hook 10, then the other end of the first anti-slip member 3 (for example, the other one of the first connecting sections 313) and the other end of the second anti-slip member 4 (for example, the other one of the second connecting sections 413) are connected to form the second connecting point 302, and the anti-slip device 30 is connected to the lifting hook 10, so that the anti-slip device 30 can be conveniently installed and fixed on the lifting hook 10. When it is necessary to remove the retaining device 30 from the lifting hook 10, the retaining device 30 is disconnected from the lifting hook 10, and the first and second retaining members 3 and 4 are disconnected from each other at the first and second connection points 301 and 302, so that the retaining device 30 can be removed from the lifting hook 10.
In some alternative embodiments of the utility model, referring to fig. 1-4, the first and second release preventing members 3 and 4 are connected by the second fastening member 52 at the first connecting point 301, and the first and second release preventing members 3 and 4 are connected by the third fastening member 53 at the second connecting point 302. Thereby, the connection operation of the first and second release preventing members 3 and 4 is facilitated and the connection is reliable.
According to other embodiments of the present invention, the first anti-slip element 3 is rotatable relative to the second anti-slip element 4 at the first connection point 301, the first anti-slip element 3 is fixed relative to the second anti-slip element 4 at the second connection point 302, and the second connection point 302 is a detachable connection, for example, the first anti-slip element 3 and the second anti-slip element 4 are connected by a fourth fastener at the second connection point 302. Thus, the installation and fixation of the retaining device 30 are facilitated, for example, when the retaining device 30 is installed and fixed on the lifting hook 10, one end of the first retaining member 3 and one end of the second retaining member 4 are rotatably connected to form the first connection point 301, and before the retaining device 30 is installed and fixed on the lifting hook 10, the first retaining member 3 and the second retaining member 4 are relatively rotated, so that the other end of the first retaining member 3 and the other end of the second retaining member 4 are moved toward directions away from each other. After the anti-slip device 30 is sleeved on the lifting hook 10, the first anti-slip part 3 and the second anti-slip part 4 are relatively rotated, the other end of the first anti-slip part 3 and the other end of the second anti-slip part 4 move towards the direction adjacent to each other until the other end of the first anti-slip part 3 and the other end of the second anti-slip part 4 contact each other, then the other end of the first anti-slip part 3 and the other end of the second anti-slip part 4 are connected to form a second connection point 302, and the anti-slip device 30 is connected with the lifting hook 10, so that the anti-slip device 30 can be conveniently installed and fixed on the lifting hook 10. When it is necessary to remove the retaining device 30 from the lifting hook 10, the retaining device 30 is disconnected from the lifting hook 10, the first and second retaining members 3 and 4 are disconnected from each other at the second connection point 302, and then the first and second retaining members 3 and 4 are relatively rotated so that the other ends of the first and second retaining members 3 and 4 move in directions away from each other, so that the retaining device 30 can be removed from the lifting hook 10.
Referring to fig. 1 and 2 in combination with fig. 3 and 4, a lifting spreader 100 according to a second aspect of the present invention comprises: a lifting hook 10 and a retaining device 30, the retaining device 30 being mounted at an open end 102 of the lifting hook 10, the retaining device 30 being a retaining device 30 according to the above-described first embodiment of the utility model.
According to the lifting sling 100 of the embodiment of the utility model, the anti-drop device 30 is arranged, when the anti-drop device 30 is arranged at the open end 102 of the lifting hook 10 for use, the first anti-drop part 3 and the second anti-drop part 4 are clamped at the left side and the right side of the lifting hook 10, so that the anti-drop device 30 can be reliably arranged on the lifting hook 10, and in the process of using the lifting hook 10 provided with the anti-drop device 30 for lifting, the anti-drop device 30 is difficult to deform due to the high structural strength of the anti-drop device 30 even being influenced by external force such as hoisted objects, and the problem of anti-drop failure caused by deformation can be prevented or reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. Anti-drop device (30) for a lifting hook (10), characterized in that it comprises:
control first anticreep piece (3) and second anticreep piece (4) that link to each other, first anticreep piece (3) with first tie point (301) and second tie point (302) have between second anticreep piece (4), second anticreep piece (4) with inject spacing space (303) between first anticreep piece (3) anti-disengaging device (30) are installed during open end (102) of lifting hook (10), lifting hook (10) open end (102) are suitable for and are held in spacing space (303), first tie point (301) with second tie point (302) are located respectively the front and back both sides of lifting hook (10).
2. Anti-drop device (30) for a lifting hook (10) according to claim 1, it is characterized in that the first anti-drop piece (3) comprises a first anti-drop body (31) and a first fixing part (32) arranged on the first anti-drop body (31), the second anti-drop piece (4) comprises a second anti-drop body (41) and a second fixing part (42) arranged on the second anti-drop body (41), the second anti-drop body (41) is connected with the first anti-drop body (31), and the first connection point (301) and the second connection point (302) are arranged between the second anti-drop body (41) and the first anti-drop body (31), the second anti-dropping body (41) and the first anti-dropping body (31) define the limit space (303), the first fastening portion (32) and the second fastening portion (42) are each adapted to be detachably connected to the lifting hook (10).
3. Anti-drop device (30) for a lifting hook (10) according to claim 2, wherein the first fastening portion (32) is connected to the upper side of the first anti-drop body (31), the second fastening portion (42) is connected to the upper side of the second anti-drop body (41), the first fastening portion (32) and the second fastening portion (42) are both of a lug structure, and the first fastening portion (32) and the second fastening portion (42) are both connected to the lifting hook (10) by a first fastening member (51).
4. A drop prevention device (30) for a lifting hook (10) as claimed in claim 2, wherein the first drop prevention body (31) comprises a first main body section (311), two first bending sections (312) and two first connection sections (313), the first main body section (311) extends in a front-rear direction, the two first connection sections (313) are connected to the front and rear sides of the first main body section (311), each first connection section (313) is connected to the first main body section (311) through the first bending section (312), the first bending section (312) and the first connection section (313) have an included angle therebetween, and the first bending section (312) and the first main body section (311) have an included angle therebetween; second anticreep body (41) includes second main part section (411), two second kinks (412) and two second linkage segments (413), second main part section (411) extends along the fore-and-aft direction, two second linkage segment (413) are connected the front and back both sides of second main part section (411), every second linkage segment (413) pass through second kinks (412) with second main part section (411) links to each other, second kinks (412) with have the contained angle between second linkage segment (413) just second kinks (412) with the contained angle has between second main part section (411), two second linkage segment (413) respectively with two first linkage segment (313) link to each other and form respectively first connection point (301) with second connection point (302).
5. A drop-off prevention device (30) for a lifting hook (10) according to claim 2, wherein the first drop-off prevention body (31) and the second drop-off prevention body (41) are both metal bars.
6. A lifting hook (10) drop prevention device (30) according to claim 2, wherein the first drop prevention element (3) and the second drop prevention element (4) are identical.
7. Anti-release means (30) for a lifting hook (10) according to any one of claims 1 to 6, characterised in that the first anti-release element (3) is fixed relative to the second anti-release element (4) at the first attachment point (301), the first anti-release element (3) is fixed relative to the second anti-release element (4) at the second attachment point (302), and the first attachment point (301) and the second attachment point (302) are both detachably connected.
8. A drop prevention device (30) for a lifting hook (10) according to claim 7, wherein the first (3) and second (4) drop prevention element are connected by a second fastening element 52 at the first connection point (301), and wherein the first (3) and second (4) drop prevention element are connected by a third fastening element 53 at the second connection point (302).
9. Anti-release means (30) for a lifting hook (10) according to any one of claims 1 to 6, characterised in that the first anti-release member (3) is rotatable relative to the second anti-release member (4) at the first attachment point (301), the first anti-release member (3) is fixed relative to the second anti-release member (4) at the second attachment point (302), and the second attachment point (302) is a detachable attachment.
10. A hoisting spreader (100), comprising:
a lifting hook (10);
-a retaining device (30), the retaining device (30) being mounted at an open end (102) of the lifting hook (10), the retaining device (30) being a retaining device (30) according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582456.9U CN215402589U (en) | 2021-03-22 | 2021-03-22 | Anti-falling device for lifting hook and lifting sling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582456.9U CN215402589U (en) | 2021-03-22 | 2021-03-22 | Anti-falling device for lifting hook and lifting sling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215402589U true CN215402589U (en) | 2022-01-04 |
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ID=79668946
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120582456.9U Active CN215402589U (en) | 2021-03-22 | 2021-03-22 | Anti-falling device for lifting hook and lifting sling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215402589U (en) |
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2021
- 2021-03-22 CN CN202120582456.9U patent/CN215402589U/en active Active
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