CN213387431U

CN213387431U - Unhooking prevention device for hoisting sling

Info

Publication number: CN213387431U
Application number: CN202022404414.4U
Authority: CN
Inventors: 张敬春
Original assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-08
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses an anti-unhooking device for hoisting sling, including lifting hook and hoist, run through on the hoist and be equipped with the lifting lug axle, the lifting hook hooks lifting lug axle setting, the last rotation cover of lifting lug axle is equipped with the sheath, the bottom fixed mounting of sheath has first fixed plate and second fixed plate, the equal threaded connection in both sides of lifting lug axle has lock nut, fixed mounting has spacing subassembly on the one end lateral wall of hoist, is close to equally divide on the circular outer wall of lifting lug axle both sides and do not seted up two sockets, the equal slip cover is equipped with spacing pipe, two on the both ends lateral wall of lifting lug axle spacing pipe sets up with two lock nut contacts respectively. The utility model discloses a cooperation between lifting hook, hoist, lifting lug axle, sheath, first fixed plate and the second fixed plate is used, has realized through setting up the sheath to the realization makes the hoist can not produce the displacement that is enough to unhook with the lifting lug axle in the use, reaches the purpose of mousing-hook protection.

Description

Unhooking prevention device for hoisting sling

Technical Field

The utility model belongs to the technical field of the hoist, especially, relate to an anti-disengaging device for hoisting sling.

Background

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.

Whether the unhooking prevention device is installed on a lifting hook or a traditional unhooking prevention device is installed on a lifting appliance, the situation that the assembling and disassembling operation is difficult exists, and the lifting appliance lifting lug shaft, the unhooking prevention bolt and other parts need to be manually assembled and disassembled by personnel, so that time and labor are wasted, certain potential safety hazards exist in the assembling and disassembling operation due to the fact that the lifting appliance generally has a certain height, and meanwhile, the nut loosening prevention function is not provided, and therefore the unhooking prevention device for the lifting appliance is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the prior art is provided with time and labor waste and the defect of the function of preventing the nut from loosening, and providing the unhooking prevention device for the hoisting sling.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a jack-up is mousing-hook device for hoist, includes lifting hook and hoist, it is equipped with the lifting lug axle to run through on the hoist, the lifting hook hooks the lifting lug axle setting, the last rotation cover of lifting lug axle is equipped with the sheath, the bottom fixed mounting of sheath has first fixed plate and second fixed plate, the equal threaded connection in both sides of lifting lug axle has lock nut, fixed mounting has spacing subassembly on the one end lateral wall of hoist, is close to equally divide on the circular outer wall of lifting lug axle both sides and do not seted up two sockets, the equal slip cap is equipped with spacing pipe, two on the both ends lateral wall of lifting lug axle spacing pipe respectively with two lock nut contact settings, be provided with two fixed subassemblies on the spacing pipe, two fixed subassembly sets up with two socket sliding connection with one side respectively.

Preferably, the sheath includes two third fixed plates, two connecting holes have all been seted up on the third fixed plate, the trunnion passes two connecting holes and sets up, two the top fixedly connected with of third fixed plate is with an arc bottom plate, the equal fixed mounting of first fixed plate and second fixed plate is in the bottom of arc bottom plate.

Preferably, the limiting assembly comprises two fourth fixing plates fixedly mounted on the side wall of one end of the lifting appliance, and the side wall of one end of each fourth fixing plate is fixedly connected with the same limiting plate.

Preferably, fixed subassembly is including the inserted bar that slides and run through spacing pipe lateral wall setting, the one end of inserted bar is inserted and is located in one of them socket, the other end fixed mounting of inserted bar has the connecting block, fixedly connected with slip cap locates the reset spring on the inserted bar between the lateral wall of connecting block and spacing pipe.

Preferably, the end of the inserted rod positioned in the socket is arranged in an inclined shape.

Preferably, the circular outer walls close to the two sides of the lifting lug shaft are provided with thread grooves, and the two locking nuts are respectively in threaded connection with the two thread grooves.

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

1. the utility model discloses a cooperation between lifting hook, hoist, lifting lug axle, sheath, first fixed plate and the second fixed plate is used, has realized through setting up the sheath to the realization makes the hoist can not produce the displacement that is enough to unhook with the lifting lug axle in the use, reaches the purpose of mousing-hook protection.

2. The utility model discloses a cooperation between lifting lug axle, socket, spacing pipe, inserted bar, connecting block and the reset spring is used, has realized through setting up spacing pipe, prevents that locking nut from appearing not hard up the condition, and spacing pipe is convenient for install and dismantle simultaneously.

Drawings

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

fig. 2 is a schematic front perspective structural view of an unhooking prevention device for a lifting sling according to the present invention;

fig. 3 is a schematic side perspective structural view of an unhooking prevention device for a lifting sling according to the present invention;

fig. 4 is a schematic view of a side sheath rotation structure of an anti-unhooking device for a lifting sling according to the present invention;

fig. 5 is a partially enlarged view of a portion a in fig. 2.

In the figure: 1 lifting hook, 2 hoists, 3 hang the trunnion, 4 sheaths, 410 third fixed plate, 420 connecting hole, 430 arc bottom plate, 5 first fixed plate, 6 second fixed plate, 7 lock nut, 8 spacing subassemblies, 810 fourth fixed plate, 820 limiting plates, 9 sockets, 10 spacing pipes, 11 fixing subassemblies, 1101 inserted bar, 1102 connecting blocks, 1103 reset spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a jack-up is mousing-hook device for hoist, including lifting hook 1 and hoist 2, it is equipped with trunnion axle 3 to run through on hoist 2, lifting hook 1 hooks trunnion axle 3 setting, it is equipped with sheath 4 to rotate the cover on the trunnion axle 3, the bottom fixed mounting of sheath 4 has first fixed plate 5 and second fixed plate 6, the equal threaded connection in both sides of trunnion axle 3 has lock nut 7, wherein, be close to all seted up the thread groove on the circular outer wall of trunnion axle 3 both sides, two lock nut 7 respectively with two thread groove threaded connection, it is concrete, lock nut 7 carries out threaded connection with the thread groove on the trunnion axle 3, thereby realize the fixed connection purpose between trunnion axle 3 and hoist 2.

Fixed mounting has spacing subassembly 8 on the one end lateral wall of hoist 2, equally divides on the circular outer wall that is close to trunnion axle 3 both sides and do not seted up two sockets 9, and the cover that all slides on the both ends lateral wall of trunnion axle 3 is equipped with spacing pipe 10, and two spacing pipes 10 set up with two lock nut 7 contacts respectively, are provided with two fixed subassemblies 11 on the spacing pipe 10, and two fixed subassemblies 11 set up with two sockets 9 sliding connection with one side respectively.

Wherein, the sheath 4 includes two third fixed plates 410, has all seted up connecting hole 420 on two third fixed plates 410, hangs trunnion 3 and passes two connecting holes 420 settings, and the same arc bottom plate 430 of top fixedly connected with of two third fixed plates 410, the equal fixed mounting of first fixed plate 5 and second fixed plate 6 in the bottom of arc bottom plate 430.

It should be noted that, when the lifting hook 1 is connected with the lifting lug shaft 3, the second fixing plate 6 is connected through the existing ejector rod, so that the sheath 4 rotates on the lifting lug shaft 3, and when the first fixing plate 5 rotates to contact with the limiting plate 820, the lifting hook 1 can be connected with the lifting lug shaft 3, and the operation is simple and convenient.

Wherein, spacing subassembly 8 includes two fourth fixed plates 810 of fixed mounting on hoist 2 one end lateral wall, the same limiting plate 820 of fixedly connected with on the one end lateral wall of two fourth fixed plates 810.

It can be seen from fig. 3 and 4 that, the second fixing plate 6 is rotated by the existing ejector rod, so that the purpose of releasing the position limitation of the sheath 4 on the hook 1 when the hook 1 is detached from the trunnion shaft 3 is achieved, and the operation is simple and the safety is high.

The fixing assembly 11 comprises an insertion rod 1101 slidably penetrating through the side wall of the limiting pipe 10, one end of the insertion rod 1101 is inserted into one of the insertion holes 9, a connecting block 1102 is fixedly mounted at the other end of the insertion rod 1101, a return spring 1103 which is slidably sleeved on the insertion rod 1101 is fixedly connected between the connecting block 1102 and the side wall of the limiting pipe 10, and further one end of the insertion rod 1101 which is located in the insertion hole 9 is obliquely arranged.

It should be noted that, when the insertion rod 1101 is pressed by the trunnion shaft 3 and enters the side wall of the limiting tube 10, the limiting tube 10 is continuously pushed to be in contact with the lock nut 7, and at this time, if a click is not heard, the limiting tube 10 can be rotated until the click is heard.

The utility model discloses in, when installation sheath 4, place between the both ends lateral wall of hoist 2 through sheath 4, will hang trunnion shaft 3 and pass hole and two connecting holes 420 on hoist 2, realize 4 covers of sheath and be connected two lock nut 7 and the both sides of hanging trunnion shaft 3 on hanging trunnion shaft 3, realize fixed hanging trunnion shaft 3's purpose, realize simultaneously 4 spacing purposes of sheath.

Through the both sides of overlapping at the suspension fork axle 3 with two spacing pipes 10, because the inserted bar 1101 one end in the spacing pipe 10 is the skew setting, thereby when overlapping spacing pipe 10 on suspension fork axle 3, suspension fork axle 3 can extrude inserted bar 1101, make inserted bar 1101 move to the lateral wall of spacing pipe 10 in, when inserted bar 1101 moves to corresponding with socket 9, in reset spring 1103 drive inserted bar 1101 through being in tensile state inserted bar 9, realize the fixed purpose to spacing pipe 10, spacing pipe 10 then realizes preventing that locking nut 7 from appearing not hard up the condition simultaneously.

And when dismantling sheath 4, then through pulling two connecting blocks 1102 for the inserted bar 1101 follows the roll-off in the socket 9, thereby cancels the fixed purpose to spacing pipe 10, can take off spacing pipe 10 from hanging trunnion axle 3, and then takes off lock nut 7 and hanging trunnion axle 3, realizes taking off the purpose of sheath 4, and the installation is dismantled simply conveniently.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a jack-up is mousing-hook device for hoist, includes lifting hook (1) and hoist (2), its characterized in that, run through on hoist (2) and be equipped with trunnion axle (3), lifting hook (1) hooks trunnion axle (3) and sets up, the cover is equipped with sheath (4) in the rotation on trunnion axle (3), the bottom fixed mounting of sheath (4) has first fixed plate (5) and second fixed plate (6), the equal threaded connection in both sides of trunnion axle (3) has lock nut (7), fixed mounting has spacing subassembly (8) on the one end lateral wall of hoist (2), is close to equally divide on the circular outer wall of trunnion axle (3) both sides and has respectively seted up two sockets (9), the cover all slides on the both ends lateral wall of trunnion axle (3) is equipped with spacing pipe (10), two spacing pipe (10) contact setting with two lock nut (7) respectively, two fixing components (11) are arranged on the limiting pipe (10), and the two fixing components (11) are respectively connected with the two sockets (9) on the same side in a sliding mode.

2. The unhooking prevention device for the hoisting sling according to claim 1, wherein the sheath (4) comprises two third fixing plates (410), connecting holes (420) are formed in the two third fixing plates (410), the hoisting trunnion (3) penetrates through the two connecting holes (420), the top of the two third fixing plates (410) is fixedly connected with the same arc-shaped bottom plate (430), and the first fixing plate (5) and the second fixing plate (6) are fixedly mounted at the bottom of the arc-shaped bottom plate (430).

3. The unhooking prevention device for the hoisting sling according to claim 1, wherein the limiting component (8) comprises two fourth fixing plates (810) fixedly mounted on a side wall of one end of the sling (2), and the same limiting plate (820) is fixedly connected to a side wall of one end of each of the two fourth fixing plates (810).

4. The unhooking prevention device for the lifting sling according to claim 1, wherein the fixing assembly (11) comprises an insertion rod (1101) which is slidably arranged through the side wall of the limiting pipe (10), one end of the insertion rod (1101) is inserted into one of the insertion holes (9), the other end of the insertion rod (1101) is fixedly provided with a connecting block (1102), and a return spring (1103) which is slidably sleeved on the insertion rod (1101) is fixedly connected between the connecting block (1102) and the side wall of the limiting pipe (10).

5. An anti-unhooking device for a lifting spreader according to claim 4, wherein the end of the insertion rod (1101) located in the socket (9) is arranged in a slanted shape.

6. The unhooking prevention device for the hoisting sling according to claim 1, wherein the circular outer walls close to the two sides of the suspension trunnion (3) are provided with thread grooves, and the two locking nuts (7) are respectively in threaded connection with the two thread grooves.