CN221116690U - Hook unhooking prevention device - Google Patents
Hook unhooking prevention device Download PDFInfo
- Publication number
- CN221116690U CN221116690U CN202322127091.2U CN202322127091U CN221116690U CN 221116690 U CN221116690 U CN 221116690U CN 202322127091 U CN202322127091 U CN 202322127091U CN 221116690 U CN221116690 U CN 221116690U
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- lifting hook
- locking plate
- safety locking
- hook
- rotating shaft
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- 230000002265 prevention Effects 0.000 title claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The utility model discloses a hook unhooking prevention device, which comprises: the device comprises a rotating shaft, a hinged support, a torsion spring, a safety locking plate and a positioning piece, wherein the rotating shaft penetrates through a preformed hole on a lifting hook and transversely penetrates through one side of the lifting hook; one end of the safety locking plate is rotatably connected to the rotating shaft, and the other end of the safety locking plate is connected with the lifting hook in a clamping way; the hinged support and the torsion spring are used for rotating the safety locking plate; the locating piece is connected with the safety locking plate and surrounds the lifting hook. The unhooking prevention device has the effect of preventing the unhooking prevention device from being invalid due to better collision, and the unhooking prevention performance and reliability of the unhooking prevention device in the using process can be enhanced.
Description
Technical Field
The utility model belongs to the technical field of hook matching devices, and particularly relates to a hook unhooking prevention device.
Background
The lifting hook is the most common lifting appliance in hoisting machinery, and is usually hung on a steel wire rope of a hoisting mechanism by means of pulley blocks and other parts.
The lifting hook is widely used in the profession of building, power supply and the like, in use, the lifting hook is connected with an iron chain, and is matched with a lifting appliance such as an electric hoist, when the lifting hook is used, a lifting rope is hooked in the lifting hook, and the unhooking-preventing safety locking plate rebounds under the action of elasticity, so that the lifting rope subjected to stress is prevented from bouncing out of the lifting hook, and the unhooking-preventing performance is directly related to the safety of construction operation.
In addition, in lifting hook loading and unloading and transportation, there is lifting hook and lifting hook, and the circumstances that lifting hook and other devices collide, because the insurance locking plate of ordinary unhook device is plane rectangle form thin slice, do not possess side direction collision, and anti-drop function, and be difficult for in time removing the collision force after receiving the collision, lead to the insurance locking plate of lifting hook to produce not hard up or skew intermediate position easily, even separate with the lifting hook body and drop, inefficacy etc. completely, when leading to using, can not play unhook's effect well, have great potential safety hazard to production operation.
In the prior art, patent application number 201620832690.1 discloses a novel anti-collision lifting hook, which mainly protects a lifting hook body through a lifting hook protection plate, can avoid the damage of the lifting hook body due to collision, but does not carefully protect an anti-unhook structure; among the prior art, patent application number 201821209608.5's patent discloses a hoist lifting hook of anti falling, uses through cooperation such as setting up bottom plate, casing, backup pad, can be spacing to hung the object, possesses anti falling's function, but overall structure is not applicable to the lifting hook of general use, and the use scene is comparatively limited, and this anti falling structure loading and unloading are comparatively complicated.
Therefore, developing an anti-unhooking device with better anti-collision effect, which causes the anti-unhooking device to fail, and enhancing the anti-unhooking performance of the anti-unhooking device in the use process is a key point for solving the technical problems.
Disclosure of utility model
In order to solve the defects in the prior art, the inventor provides a lifting hook unhooking prevention device through research and development, and solves the problems that after a common lifting hook unhooking prevention structure is subjected to loading, unloading, transportation and use, unhooking prevention clamping pieces are easy to loosen and shift to the middle position, so that unhooking prevention function is invalid, potential safety hazards exist in subsequent use, and the like.
The technical scheme adopted by the utility model is as follows:
the utility model provides a lifting hook unhook device for install in lifting hook opening top, can rotate switching lifting hook opening, unhook device includes:
The rotating shaft passes through a preformed hole on the lifting hook and transversely penetrates through the inner side of an opening corner part of the lifting hook;
one end of the safety locking plate is rotatably connected to the rotating shaft, and the other end of the safety locking plate is connected with the lifting hook in a clamping way;
The hinged support and the torsion spring are connected with the rotating shaft and the safety locking plate, so that the safety locking plate is always clamped at the hook tip of the lifting hook in a normal state;
One end of the locating piece is arranged on one side of the safety locking piece, and the other end of the locating piece can bypass the lifting hook and then is connected with the other side of the safety locking piece.
Further, the side face of the safety locking plate is rectangular on one side close to the rotating shaft, and the width of the side face of the safety locking plate is larger than that of the side face far away from the rotating shaft and connected with the lifting hook in a clamping mode, so that the integral strength of the safety locking plate is enhanced.
Further, the insurance locking plate is kept away from the axis of rotation and with the one end of lifting hook joint, and this end middle part is equipped with U type circular arc draw-in groove, and U type circular arc draw-in groove shape and lifting hook on correspond the position shape looks adaptation of contact, can closely laminate with the lifting hook for the insurance locking plate can be with lifting hook joint in this end middle part.
Further, the safety locking plate is arranged at one end, close to the rotating shaft, of the safety locking plate, a U-shaped right-angle clamping groove is formed in the middle of the safety locking plate, the U-shaped right-angle clamping groove is tightly attached to a protruding portion arranged at a position, corresponding to the lifting hook, of the safety locking plate, and in a normal state, the protruding portion can be clamped into the U-shaped right-angle clamping groove.
Further, the side surface of the safety locking plate is provided with a connecting hole for penetrating through the locating piece shaft to connect and fix the locating piece.
Further, the magnet is connected to the locating piece and is adsorbed to the lifting hook, and after the locating piece surrounds the lifting hook, the magnet can be adsorbed to the back surface of the lifting hook.
Further, one end of the positioning piece shaft is fixedly connected with the safety locking piece, and the other end of the positioning piece shaft is provided with threads at the tail end of the part of the positioning piece shaft exposing the safety locking piece; one end is fixed, and the other end can be fixed through the nut screwing, conveniently and flexibly dismantles the setting element.
The working principle of the utility model is introduced:
The middle part of the safety locking plate is provided with a U-shaped arc clamping groove at one end of the safety locking plate, which is far away from the rotating shaft and is clamped with the lifting hook, and the safety locking plate is tightly attached to the lifting hook, so that the middle part of the safety locking plate can be clamped with the lifting hook at the one end of the safety locking plate, and the safety locking plate is not easy to deviate from the middle position; the end, close to the rotating shaft, of the safety locking plate is provided with a U-shaped right-angle clamping groove which is tightly attached to the corresponding part of the lifting hook, so that the end, close to the rotating shaft, of the safety locking plate can be clamped with the lifting hook when the safety locking plate rotates, and the safety locking plate is further prevented from easily shifting to the middle position and loosening; the locating piece is used, is connected with the safety locking plate and then surrounds one side of the lifting hook, and can strengthen the safety performance of the lifting hook anti-unhook device in the use process of the lifting hook.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The safety locking plate is provided with a U-shaped circular arc clamping groove and a U-shaped right-angle clamping groove at one end far away from the rotating shaft and clamped with the lifting hook and one end close to the rotating shaft and clamped with the lifting hook, wherein the shapes of the U-shaped circular arc clamping groove and the right-angle clamping groove are consistent with those of the corresponding positions of the lifting hook, and the U-shaped circular arc clamping groove and the right-angle clamping groove are tightly attached to the lifting hook, so that the safety locking plate can be clamped with the lifting hook at the middle parts of the two ends of the safety locking plate;
(2) The positioning piece is connected with the side surface of the safety locking plate and then surrounds one side of the lifting hook, which is close to the rotating shaft, and the positioning piece can be adsorbed with the lifting hook, so that the effect of reinforcing protection can be achieved under various complex conditions of using the lifting hook, and the effect of the unhooking prevention device is more stable and reliable;
(3) Compared with the safety locking plate of the common lifting hook unhooking prevention device, the safety locking plate of the device has wider wings at two sides and is rectangular with certain width and thickness, so that the integral strength and the anti-striking capability of the safety locking plate are improved, the existing plane rectangular safety locking plate can be replaced, the safety performance is improved, and the device can be popularized and applied to complete set configuration of new lifting hooks and the like.
Drawings
FIG. 1 is a schematic view of the structure of a safety locking plate of the device of the present utility model;
FIG. 2 is a schematic view of the connection between the safety locking plate and the positioning member of the device according to the present utility model;
FIG. 3 is a second schematic view of the connection between the safety locking plate and the positioning member of the device according to the present utility model;
FIG. 4 is a diagram showing the change of the usage state of the positioning member of the device according to the present utility model;
FIG. 5 is a diagram showing the overall use state of the device according to the present utility model;
FIG. 6 is a schematic view of the overall structure of the device according to the present utility model;
Reference numerals illustrate: the device comprises a 1-rotating shaft, a 2-safety locking plate, a 3-hinged support, a torsion spring, a 4-locating piece, a 5-lifting hook, a 6-lifting rope, a 21-U-shaped arc clamping groove, a 22-U-shaped right-angle clamping groove, a 23-connecting hole, a 41-locating piece shaft, a 42-magnet and a 43-nut.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
As shown in fig. 1 to 6, a hook unhooking prevention device for installing above a hook opening, capable of rotating to open and close the hook opening, the unhooking prevention device comprising: the rotating shaft 1 passes through a preformed hole on the lifting hook 5 and transversely penetrates through the inner side of an opening corner part of the lifting hook 5; one end of the safety locking plate 2 is rotatably connected to the rotating shaft 1, and the other end of the safety locking plate is clamped with the lifting hook 5; the hinged support and the torsion spring 3 are connected with the rotating shaft 1 and the safety locking plate 2, so that the safety locking plate 2 is always clamped at the hook tip of the lifting hook 5 in a normal state; one end of the positioning piece 4 is arranged on one side of the safety locking piece 2, and the other end of the positioning piece can bypass the lifting hook 5 and then is connected with the other side of the safety locking piece 2.
As shown in fig. 1, the side surface of the safety locking plate 2 is rectangular at the side close to the rotating shaft 1, and the width of the side surface of the safety locking plate 2 is larger than the width of the side surface far away from the rotating shaft 1 and connected with the lifting hook 5 in a clamping manner, so that the integral strength of the safety locking plate 2 is enhanced.
As shown in fig. 1, the safety locking plate 2 is at one end of the safety locking plate, which is far away from the rotating shaft 1 and is in clamping connection with the lifting hook 5, a U-shaped arc clamping groove 21 is formed in the middle of the end, the shape of the U-shaped arc clamping groove 21 is matched with the shape of the corresponding contact part on the lifting hook 5, and the safety locking plate can be tightly attached to the lifting hook 5, so that the safety locking plate 2 can clamp the lifting hook 5 in the middle of the end.
As shown in fig. 1, the safety locking plate 2 is provided with a U-shaped right-angle clamping groove 22 in the middle of one end near the rotating shaft 1, and a protruding part arranged at a position where the U-shaped right-angle clamping groove 22 is correspondingly installed with the lifting hook 5 is tightly attached, and in a normal state, the protruding part can be clamped into the U-shaped right-angle clamping groove 22, so that when the safety locking plate 2 rotates, the end near the rotating shaft 1 can be clamped with the lifting hook to prevent the rotating shaft from being damaged due to overload pressure caused by overlarge rotation, and therefore, the design of the U-shaped right-angle clamping groove 22 can be used for distributing acting force when the rotating shaft is subjected to external force action, and provide protection effect.
As shown in fig. 1, the side of the safety lock plate 2 is provided with a connecting hole 23 for penetrating the positioning member shaft 41 to connect and fix the positioning member 4.
As shown in fig. 2 and 3, the positioning member 4 is connected with a magnet 42, and is attracted to the hook 5, and after the positioning member 4 surrounds the hook 5, the magnet 42 can be attracted to the back surface of the hook 5.
As shown in fig. 4, one end of the positioning member shaft 41 is fixedly connected with the safety lock plate 2, the other end is provided with threads at the end of the part of the positioning member shaft exposing the safety lock plate 2, and the part close to the safety lock plate 2 is not provided with threads; one end of the positioning piece 4 is fixed, and the other end of the positioning piece 4 can be screwed and fixed through a nut 43, so that the positioning piece 4 can be conveniently and flexibly detached.
When the lifting hook 5 is used for lifting various articles with large weight or the lifting hook 5 is required to bear large vertical and horizontal tensile forces, and in the process of loading, unloading and mixing transportation of a large number of lifting hooks, compared with the common lifting hook anti-falling structure, which is easy to loosen after loading, unloading, transporting and using for a period of time, and has the phenomena of unhooking function failure caused by shifting the middle position, the middle part of the safety locking plate 2 can be clamped with the lifting hook 5 due to the existence of the U-shaped arc clamping groove 21 and the U-shaped right-angle clamping groove 22, and the phenomenon of shifting the middle position of the safety locking plate 2 can be greatly reduced; the magnet 42 is connected to the locating piece 4 and can be adsorbed with the lifting hook 5, the other end of the locating piece 4 is connected with the safety locking plate 2, and when the lifting rope 6 penetrates into the lifting hook 5, the unhooking resistance and stability of the lifting rope 6 of the lifting hook 5 in the use process can be greatly enhanced.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (6)
1. The utility model provides a lifting hook mousing-hook device for install in lifting hook opening top, can rotate switching lifting hook opening, its characterized in that, mousing-hook device includes:
the rotating shaft (1) passes through a preformed hole on the lifting hook (5) and transversely penetrates through the inner side of an opening corner part of the lifting hook (5);
One end of the safety locking plate (2) is rotatably connected to the rotating shaft (1), and the other end of the safety locking plate is clamped with the lifting hook (5);
The hinged support and the torsion spring (3) are connected with the rotating shaft (1) and the safety locking plate (2), so that the safety locking plate (2) is always clamped at the hook tip of the lifting hook (5) in a normal state;
One end of the positioning piece (4) is arranged on one side of the safety locking piece (2), and the other end of the positioning piece can bypass the lifting hook (5) and then is connected with the other side of the safety locking piece (2);
The side of the safety locking plate (2) is rectangular at one side close to the rotating shaft (1), and the width of the side of the safety locking plate (2) is larger than that of the side far away from the rotating shaft (1) and the side of the lifting hook (5) in a clamping manner, so that the integral strength of the safety locking plate (2) is enhanced.
2. The lifting hook unhooking prevention device according to claim 1, wherein the safety locking plate (2) is arranged at one end of the safety locking plate, which is far away from the rotating shaft (1) and is clamped with the lifting hook (5), a U-shaped arc clamping groove (21) is formed in the middle of the end, the shape of the U-shaped arc clamping groove (21) is matched with the shape of a part, which is correspondingly contacted with the lifting hook (5), of the lifting hook, the safety locking plate can be tightly attached to the lifting hook (5), and the safety locking plate (2) can clamp the lifting hook (5) at the middle of the end.
3. The anti-unhooking device for the lifting hook according to claim 1, wherein the safety locking plate (2) is provided with a U-shaped right-angle clamping groove (22) at one end of the safety locking plate, which is close to the rotating shaft (1), the middle part of the end is provided with a protruding part arranged at a position where the U-shaped right-angle clamping groove (22) is correspondingly arranged with the lifting hook (5), and the protruding part can be clamped into the U-shaped right-angle clamping groove (22) in a normal state.
4. The lifting hook unhooking prevention device according to claim 1, wherein the side surface of the safety locking plate (2) is provided with a connecting hole (23) for penetrating a positioning piece shaft (41) to connect and fix the positioning piece (4).
5. The lifting hook unhooking prevention device according to claim 1, wherein the positioning piece (4) is connected with a magnet (42) to be adsorbed to the lifting hook (5), and the magnet (42) can be adsorbed on the back surface of the lifting hook (5) after the positioning piece (4) surrounds the lifting hook (5).
6. A hook release-preventing device according to claim 4, wherein the retainer shaft (41) is fixedly connected at one end to the safety lock piece (2) and is threaded at the other end at the end of the portion thereof exposed to the safety lock piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322127091.2U CN221116690U (en) | 2023-08-09 | 2023-08-09 | Hook unhooking prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322127091.2U CN221116690U (en) | 2023-08-09 | 2023-08-09 | Hook unhooking prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221116690U true CN221116690U (en) | 2024-06-11 |
Family
ID=91345584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322127091.2U Active CN221116690U (en) | 2023-08-09 | 2023-08-09 | Hook unhooking prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221116690U (en) |
-
2023
- 2023-08-09 CN CN202322127091.2U patent/CN221116690U/en active Active
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