CN211470548U - Self-adaptive anti-falling hook of hydraulic crane - Google Patents
Self-adaptive anti-falling hook of hydraulic crane Download PDFInfo
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- CN211470548U CN211470548U CN201921928618.9U CN201921928618U CN211470548U CN 211470548 U CN211470548 U CN 211470548U CN 201921928618 U CN201921928618 U CN 201921928618U CN 211470548 U CN211470548 U CN 211470548U
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Abstract
The utility model discloses a hydraulic crane self-adaptive anti-falling hook, which comprises a lifting hook, an outer cover and a pulley, wherein the pulley is rotatably connected in a groove on the upper side of the outer cover, a holding tank is arranged at the lower end of the outer cover, and a first through hole which runs through the holding tank and the outside is arranged on the bottom surface of the holding tank; the bottom surface of the containing tank is provided with a static baffle, the upper end of the containing tank is provided with a movable sliding plate, the static baffle is provided with a static contact, and the plate-shaped part is provided with a movable contact corresponding to the static contact; a locking groove is formed in one end of the hook head of the lifting hook, and an electromagnet is arranged at the bottom of the locking groove; a push rod groove is formed in the position, opposite to the locking groove, of the hook body of the lifting hook, and a push rod is connected in the push rod groove in a sliding mode; this device position descends when passing through the lifting hook pulling heavy object, makes movable contact and stationary contact point contact, makes the electro-magnet lose the electricity to the opening of self-adaptation control push rod is closed, has reduced the operating personnel work step of couple, and the operating personnel of couple only need with the rope hang on the lifting hook can.
Description
Technical Field
The utility model relates to a hydraulic hoist technical field, concretely relates to hydraulic hoist self-adaptation prevents weighing down couple.
Background
The hydraulic crane is a common name of a crane, and the crane is one of hoisting machines and is a machine which does circulating and intermittent motion; one duty cycle includes: the article taking device lifts the article from the article taking place, then moves horizontally to a designated place to lower the article, and then carries out reverse motion to return the article taking device to the original position so as to carry out the next cycle; such as fixed rotary cranes, tower cranes, truck cranes, tires, crawler cranes, etc.
In the prior art, a lifting hook on a crane is not provided with an anti-falling structure, and most of hooks are open; this brings certain potential safety hazard in giving the actual operation, in order to avoid the rope on the lifting hook to drop, still rotate on the lifting hook and be equipped with the buckle and prevent that the rope from dropping, nevertheless this buckle needs the operating personnel of couple to hang manually and establishes, can't realize automatic opening and closing, uses inconveniently, has reduced work efficiency.
For example, the chinese utility model patent "an anticreep lifting hook for crane", application number is "201820313763.5", application date: 2018.03.07, announcement day: 2018.12.7, respectively; the anti-drop lifting hook is characterized in that a lifting hook body which is integrally concave is formed by round steel in a surrounding manner, two ends of the lifting hook body oppositely extend to form a left flange and a right flange, a connecting rod which is perpendicular to the right flange and is far away from the direction of the lifting hook body is further arranged on the right flange, an accommodating cavity which is arranged along the direction of the left flange is further arranged in the left flange, and a limiting rod is arranged between the left end of the accommodating cavity and the right flange in a sliding manner, so that the left flange and the right flange are arranged on the upper end of the lifting hook body of the anti-drop lifting hook, the limiting rod can automatically realize the sliding of the limiting rod between the accommodating cavity and the right flange under the on-off control, an opening between the accommodating cavity and the right flange is closed or opened, the device is simple in structure, the limiting rod can be closed and opened by losing power through an electromagnet, an object can be, the hydraulic crane driver increases the work flow of controlling the electromagnet to lose power and increases the work complexity.
Disclosure of Invention
An object of the utility model is to provide a hydraulic crane self-adaptation prevents weighing down couple, this device position decline when passing through lifting hook pulling heavy object makes movable contact and stationary contact, makes the electro-magnet lose the electricity to opening of self-adaptation control push rod is closed, has reduced the operating personnel work step of couple, the operating personnel of couple only need hang the rope on the lifting hook can.
The utility model adopts the technical scheme as follows: a self-adaptive anti-falling hook of a hydraulic crane comprises a lifting hook, an outer cover and a pulley, wherein the pulley is rotatably connected in a groove on the upper side of the outer cover, an accommodating groove is formed in the lower end of the outer cover, and a first through hole penetrating through the accommodating groove and the outside is formed in the bottom surface of the accommodating groove; the bottom surface of the containing groove is provided with a static baffle, a second through hole is arranged on the static baffle and corresponds to the first through hole, and the diameter of the second through hole is larger than that of the first through hole; the upper end of the containing groove is provided with a movable sliding plate which comprises a plate-shaped part at the upper end and a connecting rod part at the lower end; the diameter of the connecting rod part is equal to that of the first through hole; the connecting rod part penetrates through the second through hole and the first through hole to be fixed with the lifting hook; the static baffle is provided with a static contact, and the plate-shaped part is provided with a movable contact corresponding to the static contact; a first compression spring penetrates through the connecting rod part between the bottom surface of the accommodating groove and the plate-shaped part, and the first compression spring is positioned in the second through hole; a locking groove is formed in one end of the hook head of the lifting hook, and an electromagnet is arranged at the bottom of the locking groove; a push rod groove is formed in the position, opposite to the locking groove, of the hook body of the lifting hook, a push rod is connected in the push rod groove in a sliding mode, the push rod is made of materials capable of being adsorbed by a magnet, an anti-falling plate is arranged on the right side of the push rod, and a necking matched with the anti-falling plate is formed in the left side of the push rod groove; a second compression spring penetrates through the push rod between the anti-falling plate and the necking; the static contact is electrically connected with a power supply device of the hydraulic crane; the other end of the power supply device is electrically connected with the static contact through the electromagnet.
Specifically, the fixed contact is arranged at the upper end of the fixed baffle, and the movable contact is arranged on the lower surface of the plate-shaped part.
Preferably, the lower surface of the plate-shaped part is provided with a groove, and the upper end of the static baffle is provided with a lug matched with the groove; the fixed contact is arranged on the side wall of the groove, and the movable contact is arranged on the side wall of the lug.
Further, the movable contact is a spring contact.
Further, the limit compression length of the first compression spring is smaller than the thickness of the static baffle plate, and the distance between the push rod and the push rod groove is equal to the maximum sliding distance of the push rod.
As optimization, the upper end of the lifting hook is rotationally connected with the connecting rod part through a lifting ring;
preferably, the upper end of the lifting hook is rotatably connected with the lifting ring through a necking groove.
The beneficial effects of the utility model reside in that:
1. the device lowers the position when the lifting hook pulls a heavy object, and the movable contact is in contact with the static contact, so that the electromagnet is powered off, the opening and closing of the push rod are controlled in a self-adaptive manner, the working steps of operators of the hook are reduced, and the operators of the hook only need to hang a rope on the lifting hook;
2. the electromagnet is used, so that the structure is simple, and the function can be realized through a simple series circuit; the manual operation is not needed, the efficiency is improved, and the method has more advantages compared with a complex structure and a control program.
Drawings
Fig. 1 is a front perspective view of the present invention.
Fig. 2 is a schematic diagram of the right-side perspective structure of the present invention.
Fig. 3 is a first schematic view of an inner structure of the accommodating groove.
Fig. 4 is a second schematic view of the inner structure of the accommodating groove.
Fig. 5 is a schematic diagram of the movable contact position.
Fig. 6 is a schematic view of the stationary contact position.
Fig. 7 is a first schematic sectional view of the hook.
Fig. 8 is a schematic diagram of a cross-sectional structure of a hook.
FIG. 9 is a schematic diagram of the electromagnet circuit connection.
In the figure: the lifting hook comprises a lifting hook 1, an outer cover 2, a pulley 3, an accommodating groove 4, a first through hole 5, a static baffle 6, a second through hole 7, a movable sliding plate 8, a plate-shaped part 9, a connecting rod part 10, a movable contact 11, a lifting ring 12, a static contact 13, a first compression spring 14, a locking groove 15, an electromagnet 16, a push rod groove 17, a push rod 18, an anti-falling plate 19, a necking 20, a second compression spring 21, a power supply device 22, a groove 23 and a bump 24.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
A self-adaptive anti-falling hook of a hydraulic crane is shown in figures 1-6 and comprises a hook 1, an outer cover 2 and a pulley 3, wherein the pulley 3 is rotatably connected in a groove on the upper side of the outer cover 2; the pulley 3 can be connected with a traction rope of a hydraulic crane for use; the lower end of the outer cover 2 is provided with an accommodating groove 4, and the bottom surface of the accommodating groove 4 is provided with a first through hole 5 penetrating through the accommodating groove 4 and the outside; a static baffle 6 is arranged at the bottom surface of the accommodating groove 4, a second through hole 7 is arranged on the static baffle 6 corresponding to the first through hole 5, and the diameter of the second through hole 7 is larger than that of the first through hole 5; the upper end of the accommodating groove 4 is provided with a movable sliding plate 8, and the movable sliding plate 8 comprises a plate-shaped part 9 at the upper end and a connecting rod part 10 at the lower end; the diameter of the shaft portion 10 is equal to the diameter of the first through hole 5; the connecting rod part 10 penetrates through the second through hole 7 and the first through hole 5 to be fixed with the lifting hook 1; the upper end of the lifting hook 1 is rotatably connected with the connecting rod part 10 through a lifting ring 12; the upper end of the lifting hook 1 is rotatably connected with the lifting ring 12 through a necking groove; all the lifting hooks 1 can rotate 360 degrees in the vertical direction and can also swing 90 degrees in the horizontal direction, so that the lifting hook is more flexible and convenient; the static baffle 6 is provided with a static contact 13, and the plate-shaped part 9 is provided with a movable contact 11 corresponding to the static contact 13; a first compression spring 14 penetrates through the connecting rod part 10 between the bottom surface of the accommodating groove 4 and the plate-shaped part 9, and the first compression spring 14 is positioned in the second through hole 7; the ultimate compression length of the first compression spring 14 is less than the thickness of the static baffle 6; when the compression is completed, the first compression spring 14 is compressed in the second through hole 7; as shown in fig. 7-8, a locking groove 15 is provided at one end of the hook head of the lifting hook 1, and an electromagnet 16 is provided at the bottom of the locking groove 15; a push rod groove 17 is formed in the position, opposite to the locking groove 15, of the hook body of the lifting hook 1, a push rod 18 is connected in the push rod groove 17 in a sliding mode, the push rod 18 is made of materials capable of being adsorbed by a magnet, an anti-falling plate 19 is arranged on the right side of the push rod 18, a necking 20 matched with the anti-falling plate 19 is arranged on the left side of the push rod groove 17, and the distance between the push rod 18 and the push rod groove 17 is equal to the maximum sliding distance of the push rod 18; a second compression spring 21 is arranged on the push rod 18 between the anti-falling plate 19 and the necking 20; as shown in fig. 9, the stationary contact 13 is electrically connected to a power supply device 22 of the hydraulic crane; the other end of the power supply device 22 is electrically connected with the static contact 13 through the electromagnet 16; when the lifting hook 1 hangs a heavy object, the heavy object pulls the movable sliding plate 8 to move downwards, and the first compression spring 14 is compressed in the second through hole 7; stationary contact 13 is electrically conductive with movable contact 11 contact, electro-magnet 16 has the electric current to pass through and produces magnetism, push rod 18 is attracted by the electro-magnet and stretches into in the push rod groove 17, anti-disengaging plate 19 extrudes second compression spring 21 with throat 20, thereby lifting hook 1 is opened and is closed of self-adaptation control push rod, the operating personnel work step of couple has been reduced, the efficiency has been increased, when lifting hook 1 unloads the goods, first compression spring 14 promotes the upward motion of sliding plate 8, stationary contact 13 separates with movable contact 11, electro-magnet 16 loses magnetism, thereby second compression spring 21 promotes anti-disengaging plate 19 and drives push rod 18 return, need not manual operation, the efficiency is improved.
In the first embodiment, the fixed contact 13 is arranged at the upper end of the fixed baffle 6, and the movable contact 11 is arranged on the lower surface of the plate-shaped part 9; the static contact 13 is in contact with the moving contact 11 and conducts electricity, and the electromagnet 16 generates magnetism when current passes through the electromagnet.
In the second embodiment, as shown in fig. 5-6, a groove 23 is formed on the lower surface of the plate-shaped portion 9, and a protrusion 24 matched with the groove is formed at the upper end of the static baffle 6; the fixed contact 13 is arranged on the side wall of the groove 23, and the movable contact 11 is arranged on the side wall of the lug 24; compared with the scheme of the first embodiment, the fixed contact 13 and the movable contact 11 are arranged on the side wall, and when the fixed contact 13 and the movable contact 11 are contacted and conducted, the effect of extrusion force is avoided, and the movable contact is not damaged.
Considering that the fixed contact 13 is fully contacted with the movable contact 11 to prevent virtual connection, the movable contact 11 is a spring contact; thus, the movable contact 11 can be automatically pressed to return to the original position and can be fully contacted with the fixed contact 13, and virtual connection is prevented.
The using method comprises the following steps: when the lifting hook 1 hangs a heavy object, the heavy object pulls the movable sliding plate 8 to move downwards, and the first compression spring 14 is compressed in the second through hole 7; stationary contact 13 is electrically conductive with movable contact 11 contact, electro-magnet 16 has the electric current to pass through and produces magnetism, push rod 18 is attracted by the electro-magnet and stretches into in the push rod groove 17, anti-disengaging plate 19 extrudes second compression spring 21 with throat 20, thereby lifting hook 1 is opened and is closed of self-adaptation control push rod, the operating personnel work step of couple has been reduced, the efficiency has been increased, when lifting hook 1 unloads the goods, first compression spring 14 promotes the upward motion of sliding plate 8, stationary contact 13 separates with movable contact 11, electro-magnet 16 loses magnetism, thereby second compression spring 21 promotes anti-disengaging plate 19 and drives push rod 18 return, need not manual operation, the efficiency is improved.
Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described above, or equivalent changes and modifications can be made to some of the technical features of the embodiments described above, and any changes, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a hydraulic crane self-adaptation prevents weighing down couple, includes lifting hook, dustcoat and pulley, the pulley rotates to be connected in the inslot of dustcoat upside, its characterized in that: the lower end of the outer cover is provided with an accommodating groove, and the bottom surface of the accommodating groove is provided with a first through hole penetrating through the accommodating groove and the outside; the bottom surface of the containing groove is provided with a static baffle, a second through hole is arranged on the static baffle and corresponds to the first through hole, and the diameter of the second through hole is larger than that of the first through hole; the upper end of the containing groove is provided with a movable sliding plate which comprises a plate-shaped part at the upper end and a connecting rod part at the lower end; the diameter of the connecting rod part is equal to that of the first through hole; the connecting rod part penetrates through the second through hole and the first through hole to be fixed with the lifting hook; the static baffle is provided with a static contact, and the plate-shaped part is provided with a movable contact corresponding to the static contact; a first compression spring penetrates through the connecting rod part between the bottom surface of the accommodating groove and the plate-shaped part, and the first compression spring is positioned in the second through hole; a locking groove is formed in one end of the hook head of the lifting hook, and an electromagnet is arranged at the bottom of the locking groove; a push rod groove is formed in the position, opposite to the locking groove, of the hook body of the lifting hook, a push rod is connected in the push rod groove in a sliding mode, the push rod is made of materials capable of being adsorbed by a magnet, an anti-falling plate is arranged on the right side of the push rod, and a necking matched with the anti-falling plate is formed in the left side of the push rod groove; a second compression spring penetrates through the push rod between the anti-falling plate and the necking; the static contact is electrically connected with a power supply device of the hydraulic crane; the other end of the power supply device is electrically connected with the static contact through the electromagnet.
2. The hydraulic crane self-adaptive anti-falling hook according to claim 1, characterized in that: the static contact is arranged at the upper end of the static baffle, and the movable contact is arranged on the lower surface of the plate-shaped part.
3. The hydraulic crane self-adaptive anti-falling hook according to claim 1, characterized in that: the lower surface of the plate-shaped part is provided with a groove, and the upper end of the static baffle is provided with a lug matched with the groove; the fixed contact is arranged on the side wall of the groove, and the movable contact is arranged on the side wall of the lug.
4. The hydraulic crane self-adaptive anti-falling hook according to any one of claims 2 to 3, characterized in that: the movable contact is a spring contact.
5. The hydraulic crane self-adaptive anti-falling hook according to claim 4, characterized in that: the limit compression length of the first compression spring is smaller than the thickness of the static baffle plate, and the distance between the push rod and the push rod groove is equal to the maximum sliding distance of the push rod.
6. The hydraulic crane self-adaptive anti-falling hook according to claim 5, characterized in that: the upper end of the lifting hook is rotatably connected with the connecting rod part through a lifting ring.
7. The hydraulic crane self-adaptive anti-falling hook according to claim 6, characterized in that: the upper end of the lifting hook is rotatably connected with the lifting ring through a necking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921928618.9U CN211470548U (en) | 2019-11-08 | 2019-11-08 | Self-adaptive anti-falling hook of hydraulic crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921928618.9U CN211470548U (en) | 2019-11-08 | 2019-11-08 | Self-adaptive anti-falling hook of hydraulic crane |
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| CN211470548U true CN211470548U (en) | 2020-09-11 |
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| CN201921928618.9U Active CN211470548U (en) | 2019-11-08 | 2019-11-08 | Self-adaptive anti-falling hook of hydraulic crane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340322A (en) * | 2020-11-09 | 2021-02-09 | 湖南瑭桥科技发展有限公司 | Automatic hook arm type garbage truck |
| CN112850534A (en) * | 2021-03-18 | 2021-05-28 | 佳力机械股份有限公司 | High bearing capacity's protection device for electric block |
| CN114241892A (en) * | 2021-12-03 | 2022-03-25 | 广东电网有限责任公司 | Sign board hangs dress mechanism |
| CN114411628A (en) * | 2022-01-25 | 2022-04-29 | 望江县水电建筑安装有限责任公司 | Reservoir removes dangerous reinforced structure |
-
2019
- 2019-11-08 CN CN201921928618.9U patent/CN211470548U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340322A (en) * | 2020-11-09 | 2021-02-09 | 湖南瑭桥科技发展有限公司 | Automatic hook arm type garbage truck |
| CN112850534A (en) * | 2021-03-18 | 2021-05-28 | 佳力机械股份有限公司 | High bearing capacity's protection device for electric block |
| CN114241892A (en) * | 2021-12-03 | 2022-03-25 | 广东电网有限责任公司 | Sign board hangs dress mechanism |
| CN114411628A (en) * | 2022-01-25 | 2022-04-29 | 望江县水电建筑安装有限责任公司 | Reservoir removes dangerous reinforced structure |
| CN114411628B (en) * | 2022-01-25 | 2022-08-16 | 望江县水电建筑安装有限责任公司 | Reservoir removes dangerous reinforced structure |
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