CN210884901U - Lifting hook based on ratchet mechanism - Google Patents
Lifting hook based on ratchet mechanism Download PDFInfo
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- CN210884901U CN210884901U CN201921539445.1U CN201921539445U CN210884901U CN 210884901 U CN210884901 U CN 210884901U CN 201921539445 U CN201921539445 U CN 201921539445U CN 210884901 U CN210884901 U CN 210884901U
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- ratchet
- ratchet wheel
- lifting hook
- connecting belt
- locking mechanism
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Abstract
The utility model provides a lifting hook based on ratchet mechanism, which comprises a lifting hook, a first connecting belt, a second connecting belt, a rocking handle, a ratchet mechanism and a supporting shaft, wherein the ratchet mechanism comprises a ratchet wheel, a non-return pawl and a ratchet wheel side plate, the ratchet wheel is arranged on one side of the ratchet wheel side plate, and the non-return pawl is arranged on one side of the ratchet wheel side plate and is inserted into a wheel groove of the ratchet wheel; one end of the first connecting belt is connected with one end of the lifting hook, and the other end of the first connecting belt is connected with a fixed shaft arranged at one end of the ratchet wheel side plate; two ends of the supporting shaft are fixedly arranged in a hollow hole formed in the middle of the ratchet wheel, and the supporting shaft is connected with one end of the second connecting belt; one end of the rocking handle is provided with a driving pawl, and one end of the driving pawl is inserted into the wheel groove of the ratchet wheel. The utility model discloses a promotion of the article that jack-up was treated to the rocking handle is controlled, effectively improves the simple operation degree, through simplifying ratchet's structural grouping, effectively reduces ratchet's weight.
Description
Technical Field
The utility model relates to a machinery lifting hook structure field, more specifically relates to a lifting hook based on ratchet.
Background
The existing mechanical lifting hook equipment is mostly matched with a ratchet mechanism for use, and the stability of the ratchet mechanism has great influence on the working efficiency and the safety factor of the lifting hook. In practical use, when the ratchet ring is positioned on the upper side of the ratchet wheel, the ratchet ring moves downwards along the ratchet wheel shaft under the action of the gravity of the ratchet ring, the gear teeth of the ratchet ring are tightly meshed with the gear teeth of the ratchet wheel, the ratchet wheel shaft can rotate clockwise or anticlockwise, and the ratchet wheel shaft cannot rotate in the opposite direction. However, when the ratchet ring is located at the lower side of the ratchet wheel, the ratchet wheel moves downwards along the ratchet wheel shaft under the action of the gravity of the ratchet wheel, and a certain gap exists between the gear teeth on the ratchet ring and the gear teeth of the ratchet wheel, so that the phenomenon of gear skipping, namely the ratchet wheel shaft can rotate in any direction, is caused. In addition, because ratchet uses the rocker as power input spare, the ratchet is power output spare, the pawl is the braking component, cooperation between each part is required when using, consequently there is the poor problem of stability, latch, jump the tooth appear easily, operation risk and the degree of difficulty have been increased, and because ratchet structure need rely on a plurality of gear cooperation operations, this very easily leads to ratchet's whole weight too big, especially to high altitude construction, need rely on many people to operate jointly when using, need consume a large amount of manpower resources.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art ratchet's whole weight too big, need consume a large amount of manpower resources's defect, provide a lifting hook based on ratchet.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a lifting hook based on a ratchet mechanism comprises a lifting hook, a first connecting belt, a second connecting belt, a rocking handle, a ratchet mechanism and a supporting shaft, wherein the ratchet mechanism comprises a ratchet wheel, a non-return pawl and a ratchet wheel side plate; one end of the first connecting belt is connected with one end of the lifting hook, and the other end of the first connecting belt is connected with a fixed shaft arranged at one end of the ratchet wheel side plate; two ends of the supporting shaft are fixedly arranged in a hollow hole formed in the middle of the ratchet wheel, and the supporting shaft is connected with one end of the second connecting belt; one end of the rocking handle is provided with a driving pawl, and one end of the driving pawl is inserted into the wheel groove of the ratchet wheel.
In the technical scheme, the lifting hook is used for integrally fixing the lifting hook; the first connecting belt is used for connecting the lifting hook with the ratchet mechanism; one end of the second connecting belt is connected with the supporting shaft, and the other end of the second connecting belt is used for being connected and fixed with a heavy object to be lifted; the ratchet mechanism is used for rotating and folding the second connecting belt in a certain direction through a supporting shaft connected with the ratchet mechanism, so that the heavy object is lifted; the rocking handle rotates back and forth by 0 to 180 degrees to assist the rotation of the ratchet wheel, and because the non-return pawl fixed on the side plate of the ratchet wheel is meshed and clamped with the gear of the ratchet wheel, when the rocking handle rotates in the opposite direction, the ratchet wheel does not rotate under the clamping action of the non-return pawl, and the internal gear arranged at one end of the rocking handle and the gear which is meshed with the internal gear and arranged at the outer side of the ratchet wheel at present are separated to the rocking handle to reset.
In the using process, the lifting hook is hooked and fixed with the bearing equipment or part, the other end of the second connecting band is connected and fixed with a heavy object to be lifted, then the ratchet wheel in the ratchet wheel mechanism is rotated by rotating the rocking handle, and the supporting shaft is driven to start rotating, so that the second connecting band connected with the supporting shaft is rotated and folded, and the heavy object is lifted; when the heavy object is lifted to the designated position, the rocking handle stops rotating, the non-return pawl fixed on the ratchet side plate is meshed with the ratchet wheel tightly, the ratchet wheel is prevented from rotating, and the heavy object is stabilized at the designated position.
Preferably, the second connecting belt is provided with a plurality of protruding structures for increasing the friction effect of the connecting belt.
Preferably, the first connecting belt and the second connecting belt are made of nylon.
Preferably, the other end of the rocking handle is provided with a handle, so that the operator can conveniently rotate the rocking handle.
Preferably, the ratchet wheel is a one-way tooth type ratchet wheel, and further the ratchet wheel is prevented from rotating or jumping.
Preferably, the lifting hook further comprises a locking mechanism, wherein two sides of the rocking handle are provided with groove positions matched with two ends of the locking mechanism, and the locking mechanism is arranged in a sliding connection manner with the groove positions through clamping pieces arranged at two ends of the locking mechanism; when the locking mechanism slides to one end of the slot position close to the ratchet mechanism, one side of the locking mechanism is clamped into the wheel groove of the ratchet wheel.
Preferably, the slot is provided with a protruding structure for preventing the locking mechanism from sliding.
Preferably, the thickness of the locking mechanism is equal to the interval between the gears of the ratchet wheel, and the locking mechanism is in fit engagement with the ratchet wheel gear, i.e. no gap exists between the locking mechanism and the ratchet wheel gear.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is: the lifting of an object to be lifted is controlled through the rocking handle, so that the convenience in operation is effectively improved; by simplifying the structural combination of the ratchet mechanism, the weight of the ratchet mechanism is effectively reduced, and the human resources required to be consumed are reduced; the ratchet wheel is engaged and clamped by the locking mechanism, so that the conditions of tooth jumping and tooth clamping are further avoided.
Drawings
Fig. 1 is a schematic structural view of the lifting hook based on the ratchet mechanism of the present invention.
Fig. 2 is a schematic connection diagram of the ratchet mechanism and the locking mechanism of the present invention.
Fig. 3 is a schematic view of a part of the connection between the ratchet mechanism and the locking mechanism of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
Fig. 1 is a schematic structural view of the lifting hook based on the ratchet mechanism of this embodiment.
The lifting hook based on the ratchet mechanism comprises a hook 1, a first connecting belt 2, a second connecting belt 3, a rocking handle 4, a ratchet mechanism 5, a supporting shaft 6 and a locking mechanism 7, wherein the ratchet mechanism 5 comprises 2 ratchet wheels 51, 2 check pawls 52 and 2 ratchet wheel side plates 53, the ratchet wheels 51 are arranged on one side of the ratchet wheel side plates 53, and the check pawls 52 are arranged on one side of the ratchet wheel side plates 53 and are inserted into wheel grooves of the ratchet wheels 51.
In this embodiment, the ratchet 51 is a one-way tooth ratchet.
In this embodiment, the hook 1 is disposed at one end of the first connecting belt 2, the other end of the first connecting belt 2 is connected to a fixed shaft 54 disposed between the ratchet side plates 53, two ends of the supporting shaft 6 are fixedly disposed in a hollow hole formed in the middle of the ratchet 51, the supporting shaft 6 is connected to one end of the second connecting belt 3, one end of the crank 51 is provided with a driving pawl, and one end of the driving pawl is inserted into a wheel groove of the ratchet 51.
Fig. 2 and 3 are schematic views showing the connection between the ratchet mechanism 5 and the locking mechanism 7 of the present embodiment.
In this embodiment, the two sides of the rocking handle 4 are provided with the slot 41 matched with the clamping pieces 71 arranged at the two ends of the locking mechanism 7, and the clamping pieces 71 arranged at the two ends of the locking mechanism 7 are arranged on the slot 41 in a sliding connection manner. When the locking mechanism 7 is slid along the slot 41 to near one end of the ratchet 51, one side of the locking mechanism 7 snaps into the wheel groove of the ratchet 51. In this embodiment, the locking mechanism 7 is made of a metal sheet, and the thickness of the locking mechanism 7 is equal to the thickness of the groove of the ratchet 51.
In this embodiment, first connecting band 2, second connecting band 3 adopt the nylon belt, and the connecting band of nylon material can bear bigger gravity, avoids the fracture at the in-process connecting band that promotes the heavy object. In addition, a plurality of protruding structures are arranged on the second connecting belt 3 and used for increasing the friction force of the connecting belt and avoiding the slipping of the connecting belt.
In the specific implementation process, the lifting hook 1 is firstly hooked and fixed with a load-bearing device or part, and the other end of the second connecting belt 3 is connected and fixed with a heavy object to be lifted, so that the lifting hook is installed. In the process of lifting the heavy object, the operator firstly draws out the locking mechanism 7 and stabilizes the locking mechanism at one end of the slot 41 far away from the ratchet 51, so that the ratchet 51 is prevented from being clamped and cannot rotate. Because the internal gear arranged at one end of the rocking handle 4 in the lifting hook is meshed with the gear arranged outside the ratchet wheel 51, when the rocking handle 4 is rotated anticlockwise within the range of 0-180 degrees, the rocking handle 4 drives the ratchet wheel 51 meshed and connected with the rocking handle to rotate, the supporting shaft 6 arranged between the ratchet wheels 51 also starts to rotate, and the second connecting belt 3 rotates and folds to lift the heavy object connected with the second connecting belt; when the rocking handle 4 can not rotate anticlockwise continuously, the rocking handle 4 rotates clockwise in the opposite direction, at the moment, the ratchet wheel 51 is tightly clamped under the action of the non-return pawl 52 and does not rotate reversely, and the internal gear arranged at one end of the rocking handle 4 is separated from the gear on the outer side of the ratchet wheel 51 until the rocking handle 4 resets. Repeating the steps to rotate the rocking handle 4 back and forth to lift the heavy object to the designated position, releasing the locking mechanism 7 by an operator, and completing the lifting of the target heavy object, wherein the locking mechanism 7 slides along the slot 41 and is meshed and clamped with the wheel groove of the ratchet wheel 51.
In the embodiment, after the heavy object is lifted, the ratchet wheel 51 is meshed and clamped by using the locking mechanism 7, and the ratchet wheel 51 is ensured not to rotate under the combined action of the locking mechanism 7 and the non-return pawl 52, so that the problems of tooth jumping and tooth clamping of the ratchet mechanism are solved. In addition, the ratchet structure in the lifting hook provided by the embodiment only comprises 2 ratchets 51, and the rotation of the ratchets 51 is realized by combining the rocking handle 4, so that the ratchet mechanism can be effectively simplified, the overall weight of the ratchet mechanism is effectively reduced, and the human resources required to be consumed are reduced.
Example 2
The lifting hook based on the ratchet mechanism comprises a lifting hook 1, a first connecting belt 2, a second connecting belt 3, a rocking handle 4, a ratchet mechanism 5, a supporting shaft 6 and a locking mechanism 7, wherein the ratchet mechanism 5 comprises 2 ratchet wheels 51, 2 non-return pawls 52 and 2 ratchet wheel side plates 53, the ratchet wheels 51 are arranged on one side of the ratchet wheel side plates 53, and the non-return pawls 52 are arranged on one side of the ratchet wheel side plates 53 and are inserted into wheel grooves of the ratchet wheels 51.
The lifting hook 1 is arranged at one end of the first connecting belt 2, the other end of the first connecting belt 2 is connected with a fixed shaft 54 arranged between ratchet wheel side plates 53, two ends of a supporting shaft 6 are fixedly arranged in a hollow hole formed in the middle of the ratchet wheel 51, the supporting shaft 6 is connected with one end of the second connecting belt 3, an internal gear is arranged at one end of the rocking handle 4, and the ratchet wheel 51 is meshed with the rocking handle 4 through a gear which is arranged on the other side of the ratchet wheel and matched with the internal gear arranged on the rocking handle 4.
The two sides of the rocking handle 4 are provided with groove positions 41 matched with the clamping pieces 71 arranged at the two ends of the locking mechanism 7, and the clamping pieces 71 arranged at the two ends of the locking mechanism 7 are arranged on the groove positions 41 in a sliding connection mode. When the dog 71 slides to the end of the slot 41 near the ratchet 51, one side of the locking mechanism 7 snaps into the groove of the ratchet 51.
In this embodiment, a handle 42 is disposed at the other end of the handle 4, so that an operator can rotate the handle 4.
In this embodiment, a protruding structure is disposed in the middle of the slot 41 formed in the rocking handle 4, and is used for blocking the clip 71 when the rocking handle 4 is rotated, so as to prevent one side of the locking mechanism 7 from being engaged and clamped with the ratchet 51 when the locking mechanism 71 slides to an end close to the ratchet 51 along the slot 41 when the rocking handle 4 is rotated again.
In this embodiment, the locking mechanism 7 is made of metal sheet and has a thickness equal to the thickness of the groove of the ratchet 51.
In the specific implementation process, the lifting hook 1 is firstly hooked and fixed with a load-bearing device or part, and the other end of the second connecting belt 3 is connected and fixed with a heavy object to be lifted, so that the lifting hook is installed.
In the process of lifting the heavy object, an operator can clamp and fix the clamping piece 71 on the locking mechanism 7 at one end of the slot 41 far away from the ratchet 51 through the protruding structure on the slot 41, so that the locking mechanism 7 is prevented from clamping the ratchet 51 to prevent the ratchet 51 from being incapable of rotating. An operator uses the handle 42 to rotate the rocking handle 4 anticlockwise within the range of 0-180 degrees, so that the rocking handle 4 drives the ratchet wheel 51 meshed with the rocking handle to rotate, the supporting shaft 6 arranged between the ratchet wheels 51 also starts to rotate, and the second connecting belt 3 rotates and folds to lift a heavy object connected with the second connecting belt; when the rocking handle 4 can not rotate anticlockwise continuously, the rocking handle 4 rotates clockwise in the opposite direction, at the moment, the ratchet wheel 51 is tightly clamped under the action of the non-return pawl 52 and does not rotate reversely, and the internal gear arranged at one end of the rocking handle 4 is separated from the gear on the outer side of the ratchet wheel 51 until the rocking handle 4 resets. Repeating the above steps to rotate the rocking handle 4 back and forth to lift the heavy object to the designated position, the operator pushes the locking mechanism 7 towards the ratchet wheel 51, the clamping piece 71 is separated from the clamping position on the slot position 41, moves to the other end of the slot position 41 and then is meshed with the ratchet wheel 51 to be clamped tightly, the ratchet wheel 51 is further ensured not to rotate any more, the heavy object is stabilized at the designated position, and the lifting of the heavy object is realized.
This embodiment is through add the protruding structure that is used for blocking locking mechanism 7 on trench 41, solves the inconvenient problem of operation that locking mechanism 7 hand control rocking handle 4 rotating leads to of operating personnel on one hand, avoids operating personnel can not in time handle emergency.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a lifting hook based on ratchet which characterized in that: the ratchet mechanism comprises a ratchet wheel, a non-return pawl and a ratchet wheel side plate, wherein the ratchet wheel is arranged on one side of the ratchet wheel side plate, and the non-return pawl is arranged on one side of the ratchet wheel side plate and is inserted into a wheel groove of the ratchet wheel; one end of the first connecting belt is connected with one end of the lifting hook, and the other end of the first connecting belt is connected with a fixed shaft arranged at one end of the ratchet wheel side plate; two ends of the support shaft are fixedly arranged in a hollow hole formed in the middle of the ratchet wheel, and the support shaft is connected with one end of the second connecting belt; one end of the rocking handle is provided with an active pawl, and one end of the active pawl is inserted into a wheel groove of the ratchet wheel.
2. The ratchet-based lifting hook of claim 1, wherein: and a plurality of protruding structures are arranged on the second connecting belt.
3. The ratchet-based lifting hook of claim 2, wherein: the first connecting belt and the second connecting belt are made of nylon materials.
4. The ratchet-based lifting hook of claim 1, wherein: the other end of the rocking handle is provided with a handle.
5. The ratchet-based lifting hook of claim 1, wherein: the ratchet wheel is a one-way tooth type ratchet wheel.
6. A lifting hook as claimed in any one of claims 1 to 5, wherein: the lifting hook also comprises a locking mechanism, wherein two sides of the rocking handle are provided with groove positions matched with two ends of the locking mechanism, and the locking mechanism is arranged in a sliding connection manner with the groove positions through clamping pieces arranged at two ends of the locking mechanism; when the locking mechanism slides to one end of the slot position close to the ratchet mechanism, one side of the locking mechanism is clamped into the wheel groove of the ratchet wheel.
7. The ratchet-based lifting hook of claim 6, wherein: and the slot position is provided with a protruding structure for avoiding the locking mechanism from sliding.
8. The ratchet-based lifting hook of claim 6, wherein: the thickness of the locking mechanism is equal to the thickness of the wheel groove of the ratchet wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539445.1U CN210884901U (en) | 2019-09-16 | 2019-09-16 | Lifting hook based on ratchet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539445.1U CN210884901U (en) | 2019-09-16 | 2019-09-16 | Lifting hook based on ratchet mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210884901U true CN210884901U (en) | 2020-06-30 |
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ID=71314222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921539445.1U Active CN210884901U (en) | 2019-09-16 | 2019-09-16 | Lifting hook based on ratchet mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210884901U (en) |
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2019
- 2019-09-16 CN CN201921539445.1U patent/CN210884901U/en active Active
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