CN115092808A - Rope-breaking anti-falling device for tower crane hook and tower crane - Google Patents
Rope-breaking anti-falling device for tower crane hook and tower crane Download PDFInfo
- Publication number
- CN115092808A CN115092808A CN202210528259.8A CN202210528259A CN115092808A CN 115092808 A CN115092808 A CN 115092808A CN 202210528259 A CN202210528259 A CN 202210528259A CN 115092808 A CN115092808 A CN 115092808A
- Authority
- CN
- China
- Prior art keywords
- wedge
- tower crane
- shaped guide
- self
- guide rails
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/02—Safety gear for retaining load-engaging elements in the event of rope or cable breakage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The application discloses tower crane lifting hook rope breakage anti-falling device and tower crane to solve because of the tower crane hoisting wire rope fracture back, the malignant incident that the lifting hook (together with the thing of hanging) falls and leads to. The broken rope anti-falling device of tower crane lifting hook is used for setting up between two curb plates of lifting hook pulley both sides to be located hoisting wire rope's both sides end, the broken rope anti-falling device of tower crane lifting hook includes: the two wedge-shaped guide rails are respectively arranged on the two side plates, clamping grooves are formed in the wedge-shaped guide rails, and bases are arranged at the bottom ends of the wedge-shaped guide rails; the two self-locking wedge blocks are respectively arranged on the two wedge-shaped guide rails in a sliding manner; the two elastic pieces are respectively arranged on the bases of the two wedge-shaped guide rails; and one end of the safety component is movably arranged on the two self-locking wedge blocks, and the other end of the safety component is fixed in the clamping groove in a clamping and embedding manner through the compression elastic piece.
Description
Technical Field
The application relates to the technical field of tower cranes, in particular to a rope breaking and falling preventing device for a tower crane lifting hook and a tower crane.
Background
At present, the main measures for preventing the breakage of the crane hoisting steel wire rope are to regularly carry out visual safety inspection on the crane hoisting steel wire rope, and the crane hoisting steel wire rope has complex wiring, frequent operation and long distance on a tower crane structure and a transmission mechanism, so that inspectors in partial areas are difficult to reach and are difficult to inspect in place, especially the crane hoisting steel wire rope has complex internal stress generated in the using process and cannot be sensed by naked eyes or common detection means, and when the local internal stress of the crane hoisting steel wire rope is gathered and reaches the limit, the crane hoisting steel wire rope is suddenly broken; in the operation process, the falling of the lifting hook (together with the hanging object) from the high altitude caused by the sudden fracture of the crane hoisting steel wire rope is extremely dangerous, and because the lifting hook (together with the hanging object) often passes through the overhead part of the working surface of workers, no effective solution for preventing the falling accident of the lifting hook (together with the hanging object) caused by the sudden fracture of the hoisting steel wire rope is available on the construction site.
Disclosure of Invention
The technical problem that this application will solve lies in, to prior art's not enough, provides a tower crane lifting hook rope breakage anti-falling device and tower crane to solve because of tower crane hoisting cable wire fracture back, the malignant incident that the lifting hook (together with hanging the thing) leads to falls.
In order to solve the technical problem, a first aspect of the embodiment of the present application provides a tower crane lifting hook rope breakage anti-falling device for set up between two curb plates in lifting hook pulley both sides to be located hoisting steel wire rope's both sides end, tower crane lifting hook rope breakage anti-falling device includes:
the two wedge-shaped guide rails are respectively arranged on the two side plates, clamping grooves are formed in the wedge-shaped guide rails, and a base is arranged at the bottom ends of the wedge-shaped guide rails;
the two self-locking wedge blocks are respectively arranged on the two wedge-shaped guide rails in a sliding manner;
the two elastic pieces are respectively arranged on the bases of the two wedge-shaped guide rails;
and one end of the safety component is movably arranged on the two self-locking wedge blocks, and the other end of the safety component is fixed in the clamping groove in a clamping and embedding manner through an elastic piece.
In one implementation, the distance between the two wedge-shaped guide rails is smaller and smaller along the direction from one end of the wedge-shaped guide rail close to the base to the other end.
In one implementation, the two self-locking wedges are respectively provided with a first connecting ring and a second connecting ring at the ends far away from the hook pulley, and the safety assembly comprises:
the safety rod is used for being fixedly clamped in the clamping groove in an embedded mode;
the bumper base is movably arranged in the first connecting ring and the second connecting ring;
and one end of the connecting rod is connected with the bumper, and the other end of the connecting rod is connected with the bumper base.
In one implementation, both ends of the bumper base are provided with limiting parts.
In one implementation, barbs are provided on the self-locking face of the self-locking wedge.
In one implementation, at the end away from the base, the minimum spacing between the two wedge rails is less than the sum of the lengths of the two self-locking wedges.
In one implementation, the length of the bumper base is no less than the maximum spacing between the first and second attachment rings.
In one implementation, the resilient member is a spring.
The second aspect of the embodiment of the application provides a tower crane, include lifting hook pulley, lifting hook, hoisting cable, be located two curb plates of lifting hook pulley both sides and as above a tower crane lifting hook rope breakage anti-falling device.
Has the advantages that: when the hoisting steel wire rope on one side of the hoisting hook pulley is suddenly broken, the gravity center of the hoisting hook (together with the hanging object) is instantaneously deviated, the hoisting steel wire rope on the other side is instantaneously and greatly deflected relative to the hoisting hook (together with the device and the hanging object) under the action of the gravity of the hoisting hook (together with the hanging object), the hoisting steel wire rope on the side is instantaneously and strongly impacted on the safety rod of the safety component, so that the safety rod is separated from the clamping groove of the wedge-shaped guide rail, the elastic potential energy of the elastic part compressed by the safety component is immediately released, the two self-locking wedge blocks are rapidly pushed to move on the two wedge-shaped guide rails along the direction of reducing the distance between the two self-locking wedge blocks until the distance between the two self-locking wedge blocks is smaller than the diameter of the hoisting steel wire rope, and the hoisting steel wire rope is clasped under the action of the gravity of the hoisting hook (together with the hanging object) and the action of huge friction between the two self-locking wedge blocks and the hoisting steel wire rope, the distance between the two self-locking wedge blocks is gradually decreased to lock the hoisting steel wire rope, so that the self-locking function is realized, and the lifting hook (together with the hanging object) is hung on the hoisting steel wire rope on one side which is not broken in a short time and can not fall off under the condition of avoiding larger impact.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without any inventive work.
FIG. 1 is a schematic structural view of a rope breakage and falling prevention device of a tower crane hook provided by the present application, which is installed on the hook when a hoisting steel wire rope is in a normal state.
Fig. 2 is the structural schematic diagram that the tower crane lifting hook rope breakage anti-falling device provided by the application is installed on the lifting hook when the hoisting steel wire rope is in one side fracture state.
Fig. 3 is a schematic structural diagram that the rope breakage and falling prevention device for the tower crane hook provided by the application is installed between the hook pulley side plates and located at two side ends of a hoisting steel wire rope.
Fig. 4 is the tower crane lifting hook rope breakage anti-falling device who provides this application and is in the schematic structure diagram of draw-in groove under the operating condition of awaiting orders.
FIG. 5 is a schematic structural diagram of a safety lever in a relaxed state when the rope-breaking and anti-falling device for a tower crane hook is in a non-working state before installation.
Fig. 6 is a schematic structural diagram of the tower crane hook rope breakage and falling prevention device provided by the application embracing a broken hoisting steel wire rope in a working state after a bumper is triggered.
In the figure: 01. a hoisting wire rope; 02. a hook pulley; 03. a hook; 04. a side plate; 10. A wedge-shaped guide rail; 101. a card slot; 20. self-locking wedge blocks; 201. a first connecting ring; 202. a second connection ring; 203. a barb; 30. an elastic member; 401. a bumper; 402. a bumper base; 403. a connecting rod; 50. a base; 60. a limiting part.
Detailed Description
The application provides a tower crane lifting hook rope breakage and falling prevention device and a tower crane, and in order to enable the purpose, the technical scheme and the effect of the application to be clearer and clearer, the application is further described in detail with reference to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The following description of the embodiments is provided to further explain the present disclosure by way of example in connection with the appended drawings.
A first aspect of the present embodiment provides a rope breakage and falling prevention device for a tower crane hook, as shown in fig. 1, fig. 2, and fig. 4, fig. 1 is a schematic structural diagram of a hoisting steel wire rope 01 installed on a hook in a normal state, the hoisting steel wire rope 01 is connected to a hook 03 and a hanging object through components such as a hook pulley 02 and side plates 04, and the two rope breakage and falling prevention devices for a tower crane hook are respectively installed between two side plates 04 and located at two sides of the hoisting steel wire rope 01; fig. 2 is a schematic structural diagram of a hoisting steel wire rope 01 installed on a hook in a state of one side fracture, in order to solve a serious safety accident caused by falling of the hook (together with a hanging object) after the tower crane hoisting steel wire rope 01 fractures, in this embodiment, two tower crane hook rope breakage anti-falling devices are symmetrically arranged between two side plates 04 at two sides of a hook pulley 02 and at two ends of the hoisting steel wire rope 01, as shown in fig. 3; the rope breaking and falling preventing device for the tower crane lifting hook comprises two wedge-shaped guide rails 10, two self-locking wedges 20, two elastic pieces 30 and a safety component, wherein the two wedge-shaped guide rails 10 are respectively and fixedly arranged on two side plates 04, guide grooves are formed in the two self-locking wedges 20, the two self-locking wedges 20 are respectively and slidably arranged on the two wedge-shaped guide rails 10 through the guide grooves, a base 50 is arranged at the bottom end of each wedge-shaped guide rail 10, in the embodiment, the two elastic pieces 30 can be respectively and fixedly arranged on the bases 50 of the two wedge-shaped guide rails 10, one end of each elastic piece 30 can be arranged on the base 50, the other end of each elastic piece 30 is arranged on the self-locking wedges 20, the elastic pieces 30 can be prevented from being stretched when the self-locking wedges 20 slide to the upper parts of the wedge-shaped guide rails, and further the elastic pieces 30 can be prevented from being pulled and damaged, the service life of the elastic piece 30 is ensured; the two wedge-shaped guide rails 10 are respectively provided with a clamping groove 101, one end of the safety component is a safety rod base 402 and is movably arranged on the two self-locking wedge blocks 20, and the other end of the safety component is a safety rod 401 and is fixedly clamped in the clamping groove 101 through an elastic piece 30. In this embodiment, when the safety component is embedded and fixed in the slot 101, the elastic member 30 is compressed, and at this time, the rope breaking and falling preventing device for the tower crane hook is in a standby working state; as shown in fig. 2, when the hoisting cable 01 on one side of the hook pulley 02 suddenly breaks, the center of gravity of the hook (together with the hanging object) instantly deviates, the hoisting cable 01 on the other side (the non-broken side) greatly deflects under the action of the gravity of the hook (together with the hanging object), the hoisting cable 01 on the side instantly and strongly impacts the safety rod 401, so that the safety rod 401 falls off from the slot 101 of the wedge-shaped guide rail 10, and the elastic potential energy of the compressed elastic member 30 immediately releases at the moment, thereby rapidly pushing the two self-locking wedges 20 to move on the two wedge-shaped guide rails 10 in the direction of reducing the distance between the two self-locking wedges until the distance between the two self-locking wedges 20 is smaller than the diameter of the hoisting cable, and clasping the hoisting cable due to the needle-like barbs on the contact surfaces of the two self-locking wedges 20 and the hoisting cable 01, under the action of the gravity of the hook (together with the hanging object) and the huge friction between the two self-locking wedges 20 and the hoisting cable 01 Under the action of force, the distance between the two self-locking wedge blocks 20 gets lower and higher until the hoisting steel wire rope 01 is locked, so that the self-locking function is realized, and the lifting hook (together with a hanging object) is hung on the hoisting steel wire rope on the side which is not broken in a short time and under the condition of avoiding large impact and cannot fall. In addition, it is worth to be noted that, because the safety coefficient of the tower crane hoisting steel wire rope 01 is greater than or equal to 6 (national standard), and the ratio of the breaking force of the single-side steel wire rope to the rated hoisting weight is greater than or equal to 3, even if the lifting hook (together with the hoisted object) is under the condition of the ultimate rated load, the single-side steel wire rope can be prevented from falling under the condition of small impact.
As shown in fig. 5, in the present embodiment, the two self-locking wedges 20 are respectively provided with a first connection ring 201 and a second connection ring 202 at ends thereof away from the hook pulley 02, the safety assembly includes a safety rod 401, a safety rod base 402 and a connection rod 403, the safety rod 401 is configured to be fixed in the clamping groove 101 in a clamping manner, the diameter of the safety rod base 402 is slightly smaller than the inner diameter of the first connection ring 201 and the second connection ring 202, that is, the safety rod base 402 has a gap with the first connection ring 201 and the second connection ring 202, the safety rod base 402 is movably disposed in the first connection ring 201 and the second connection ring 202 through the gap, one end of the connection rod 403 is connected with the safety rod 401, and the other end of the connection rod 403 is connected with the safety rod base 402.
As shown in fig. 4, in the present embodiment, the length of the bumper base 402 is not less than the maximum distance between the first connection ring 201 and the second connection ring 202, wherein the maximum distance between the first connection ring 201 and the second connection ring 202 is the distance between the first connection ring 201 and the second connection ring 202 generated when the two self-locking wedges 20 slide to the lower ends of the two wedge rails 10 respectively and the bumper base 402 can still be located on the first connection ring 201 and the second connection ring 202 when the first connection ring 201 and the second connection ring 202 slide to the maximum distance by maximally compressing the elastic member 30, that is, the bumper base 402 can still be located on the two self-locking wedges 20, so that the bumper 401 is connected to the two self-locking wedges 20, thereby realizing that the bumper 401 is inserted into the slot 101 of the wedge rail 10, the safety rod base 402 cannot be separated from the two self-locking wedges 20, so that the safety rod 401 can drive the two self-locking wedges 20 to move to compress the elastic part 30 to accumulate potential energy, and energy is provided for holding the hoisting steel wire rope 01 when the hoisting steel wire rope 01 is broken.
Further, both ends of the safety lever base 402 are provided with the limiting portions 60, and in this embodiment, the limiting portions 60 are provided to further prevent the safety lever base 402 from being separated from the first connecting ring 201 and the second connecting ring 202 on the two self-locking wedges 20, so that it is further ensured that after the safety lever 401 is pressed down to be clamped and embedded in the clamping groove 101 of the wedge-shaped guide rail 10, the safety lever 401 can drive the two self-locking wedges 20 to move and compress the elastic member 30 to accumulate potential energy, thereby providing energy for holding the lifting steel wire rope 01 when the lifting steel wire rope 01 is broken.
As shown in fig. 4 to 6, in this embodiment, the distance between the two wedge-shaped guide rails 10 decreases in a direction from one end of the wedge-shaped guide rail 10 close to the base 50 to the other end, so that when one side of the hoisting steel wire 01 is broken and the hoisting steel wire 01 on the unbroken side hits the safety lever 401 to make the safety lever 401 fall off from the slot 101, the elastic member 30 jacks the self-locking wedge 20 to move toward the side where the distance between the two wedge-shaped guide rails 10 decreases, so as to reduce the distance between the two self-locking wedges 20 to be smaller than the diameter of the hoisting steel wire 01, and hold the hoisting steel wire 01 to prevent the hook (together with the hanging object) from falling.
As shown in fig. 6, in this embodiment, at the end far from the base 50, the minimum distance between the two wedge-shaped guide rails 10 is smaller than the sum of the lengths of the two self-locking wedges 20, so as to prevent the self-locking wedges 20 from falling off from the upper end of the wedge-shaped guide rails 10, and ensure the normal use of the rope breakage and fall prevention device for the tower crane hook.
As shown in fig. 4, in this embodiment, the auto-lock face of the auto-lock wedge 20 is provided with a barb 203, the barb is a needle-shaped barb, wherein the auto-lock face is the respective opposite face between two auto-lock wedges 20, and the setting of the needle-shaped barb 203 improves the connection friction between two auto-lock wedges 20 and the hoisting steel wire rope 01, thereby improving the locking force of the rope breakage anti-falling device of the tower crane hook 03.
In one embodiment, the resilient member 30 is a spring.
The working principle of the rope breaking and falling preventing device for the tower crane lifting hook is as follows:
as shown in fig. 5, in the non-operating state, the safety lever 401 is in a natural slack state, and the two self-locking wedges 20 are supported by the springs and are also in a natural slack state along the two wedge rails 10, and at this time, the springs only bear a slight pressure which does not exceed the self-weight of the self-locking wedges 20.
As shown in fig. 4, in the standby operating state, the safety assembly is pressed down, because the safety assembly is connected to the two self-locking wedges 20 through the first connecting ring and the second connecting ring, the two self-locking wedges 20 can be further pushed to move down along the two wedge-shaped guide rails 10, and the spring on the base 50 is compressed, at this time, the distance between the self-locking surfaces of the two self-locking wedges 20 with the needle-shaped barbs 203 is gradually increased, when the safety rod 401 of the safety assembly is embedded into the slot 101 of the wedge-shaped guide rail 10, at this time, the distance between the self-locking surfaces of the two self-locking wedges 20 with the needle-shaped barbs 203 is greater than the diameter of the hoisting steel wire rope 01, the pressing down is stopped, and the spring is compressed and stores large potential energy.
As shown in fig. 6, in a triggered working state, when a hoisting steel wire rope 01 on one side of a tower crane hook suddenly breaks, the center of gravity of the hook (together with a hanging object) instantly deviates, the hoisting steel wire rope 01 on the other side greatly deflects relative to the angle of the hook (together with the device and the hanging object) under the action of the gravity of the hook (together with the hanging object), the hoisting steel wire rope 01 on the side instantly impacts a safety rod 401 of a safety assembly with great force, so that the safety rod 401 falls off from a clamping groove 101 of a wedge-shaped guide rail 10, at the moment, compressed spring potential energy is released immediately, so that two self-locking wedges 20 are pushed to move upwards along two wedge-shaped guide rails 10, simultaneously, the distance between self-locking surfaces of the two self-locking wedges 20 with barbs 203 is instantly reduced, and when the distance between the self-locking surfaces is smaller than the diameter of the hoisting steel wire rope 01, the two self-locking wedges 20 are under the action of the needle-locking barbs 203, the hoisting steel wire rope 01 is held by large friction force, meanwhile, due to the gravity action of the lifting hook (together with the hoisted object), the lifting hook (together with the hoisted object) drives the two wedge-shaped guide rails 10 to move downwards, and due to the fact that the distance between the upper parts of the wedge-shaped guide rails 10 is smaller and smaller, the hoisting steel wire rope 01 is held more and more tightly, and the self-locking function is achieved.
In summary, the embodiment provides a rope breakage and falling prevention device for a tower crane hook, the rope breakage and falling prevention device for the tower crane hook comprises two wedge-shaped guide rails 10, two self-locking wedges 20, two elastic pieces 30 and a safety component, the two wedge-shaped guide rails 10 are respectively arranged on two side plates 04, guide grooves for matching the wedge-shaped guide rails are formed in the two self-locking wedges 20, the two self-locking wedges 20 are respectively arranged on the two wedge-shaped guide rails 10 in a sliding manner through the guide grooves, a base 50 is arranged on the bottom end of the wedge-shaped guide rail 10, the two elastic pieces 30 are respectively fixedly arranged on the bases 50 of the two wedge-shaped guide rails 10, clamping grooves 101 are formed in the two wedge-shaped guide rails 10, one end of the safety component is movably arranged on the two self-locking wedges 20, and the other end of the safety component is fixedly clamped in the clamping grooves 101 through the compression elastic pieces 30, in this embodiment, when the safety component is fixed in the locking slot 101 in a snap-fit manner, the elastic member 30 is compressed, and after the hoisting cable 01 on one side of the hook pulley 02 is suddenly broken, the center of gravity of the hook (together with the hoisted object) is instantaneously shifted, the hoisting cable 01 on the other side is greatly deflected under the action of the gravity of the hook (together with the hoisted object), the hoisting cable 01 on the side is instantaneously and strongly collided with the safety component, so that the safety component falls off from the locking slot 101 of the wedge-shaped guide rail 10, and the elastic potential energy of the compressed elastic member 30 is immediately released, thereby pushing the two self-locking wedges 20 to move on the two wedge-shaped guide rails 10 in the direction of reducing the distance between the two self-locking wedges 20 until the distance between the two self-locking wedges 20 is smaller than the diameter of the hoisting cable 01, so that the hook (together with the hoisted object) on the hoisting cable 01 is hung on the hoisting cable 01 and does not fall, in addition, it is worth to be noted that, because the safety coefficient of the tower crane hoisting steel wire rope 01 is greater than or equal to 6 (national standard), the ratio of the breaking force of the single-side steel wire rope to the rated hoisting weight is greater than or equal to 3, even if the lifting hook (together with the hoisted object) is under the condition of the limited rated load, the single-side steel wire rope can prevent the lifting hook (together with the hoisted object) from falling.
The second aspect of this embodiment provides a tower crane, including lifting hook pulley, lifting hook, hoisting cable, be located two curb plates of lifting hook pulley both sides and as above the broken rope of tower crane lifting hook prevent weighing down the device.
Finally, it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present application and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (9)
1. The utility model provides a tower crane lifting hook anti-falling device that restricts absolutely for set up between two curb plates of lifting hook pulley both sides to be located hoisting wire rope's both sides end, a serial communication port, tower crane lifting hook anti-falling device that restricts absolutely includes:
the two wedge-shaped guide rails are respectively arranged on the two side plates, clamping grooves are formed in the wedge-shaped guide rails, and a base is arranged at the bottom ends of the wedge-shaped guide rails;
the two self-locking wedge blocks are respectively arranged on the two wedge-shaped guide rails in a sliding manner;
the two elastic pieces are respectively arranged on the bases of the two wedge-shaped guide rails;
and one end of the safety component is movably arranged on the two self-locking wedge blocks, and the other end of the safety component is fixed in the clamping groove in a clamping and embedding manner through the elastic piece.
2. The rope breaking and falling preventing device for the tower crane hook as claimed in claim 1, wherein the distance between the two wedge-shaped guide rails is smaller and smaller along the direction from one end of the wedge-shaped guide rail close to the base to the other end.
3. The tower crane lifting hook rope breakage and falling prevention device as claimed in claim 1, wherein one ends of the two self-locking wedges far away from the lifting hook pulley are respectively provided with a first connecting ring and a second connecting ring, and the safety assembly comprises:
the safety rod is used for being fixedly clamped in the clamping groove in an embedded mode;
the bumper base is movably arranged in the first connecting ring and the second connecting ring;
and one end of the connecting rod is connected with the bumper, and the other end of the connecting rod is connected with the bumper base.
4. The tower crane lifting hook rope-breaking and falling-preventing device as claimed in claim 3, wherein both ends of the base of the safety rod are provided with limiting parts.
5. The rope breaking and falling preventing device for the tower crane lifting hook as claimed in claim 1, wherein the self-locking surface of the self-locking wedge block is provided with barbs.
6. The tower crane lifting hook rope breakage and falling prevention device as claimed in claim 1, wherein the minimum distance between the two wedge-shaped guide rails is smaller than the sum of the lengths of the two self-locking wedges at the end far away from the base.
7. The tower crane lifting hook rope breakage and falling prevention device as claimed in claim 3, wherein the length of the bumper base is not less than the maximum distance between the first connecting ring and the second connecting ring.
8. The tower crane hook rope breakage and falling prevention device as claimed in claim 1, wherein the elastic member is a spring.
9. A tower crane, which is characterized by comprising a hook pulley, a hook, a hoisting steel wire rope, two side plates positioned at two sides of the hook pulley and the rope breakage and falling prevention device of the tower crane hook as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528259.8A CN115092808A (en) | 2022-05-16 | 2022-05-16 | Rope-breaking anti-falling device for tower crane hook and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528259.8A CN115092808A (en) | 2022-05-16 | 2022-05-16 | Rope-breaking anti-falling device for tower crane hook and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115092808A true CN115092808A (en) | 2022-09-23 |
Family
ID=83287639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210528259.8A Pending CN115092808A (en) | 2022-05-16 | 2022-05-16 | Rope-breaking anti-falling device for tower crane hook and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115092808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142375A (en) * | 2023-11-01 | 2023-12-01 | 南通中远海运重工装备有限公司 | Portal type lifting equipment for slope operation |
| CN117566604A (en) * | 2023-12-12 | 2024-02-20 | 安徽建工集团建筑机械智能制造有限公司 | Rope breakage anti-falling device for tower crane lifting hook |
-
2022
- 2022-05-16 CN CN202210528259.8A patent/CN115092808A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142375A (en) * | 2023-11-01 | 2023-12-01 | 南通中远海运重工装备有限公司 | Portal type lifting equipment for slope operation |
| CN117142375B (en) * | 2023-11-01 | 2024-01-05 | 南通中远海运重工装备有限公司 | Portal type lifting equipment for slope operation |
| CN117566604A (en) * | 2023-12-12 | 2024-02-20 | 安徽建工集团建筑机械智能制造有限公司 | Rope breakage anti-falling device for tower crane lifting hook |
| CN117566604B (en) * | 2023-12-12 | 2024-04-12 | 安徽建工集团建筑机械智能制造有限公司 | Rope breakage anti-falling device for tower crane lifting hook |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115092808A (en) | Rope-breaking anti-falling device for tower crane hook and tower crane | |
| US6513204B2 (en) | Flexible flat tension member termination device | |
| CN110173104B (en) | Anti-falling structure attached with lifting scaffold | |
| CN217377016U (en) | Rope-breaking anti-falling device for tower crane hook and tower crane | |
| CN111302182B (en) | Elevator with mechanical anti-falling function | |
| CN212871571U (en) | Steel wire rope tension detection device for hoisting machinery inspection | |
| CN217867584U (en) | End connecting device for hoisting rope | |
| CN106429706B (en) | The electric life controller and method of anti-accidental movement | |
| CN210598319U (en) | Mechanical parking equipment wire rope locking device and parking equipment | |
| CN217498520U (en) | Rope breakage protection device for tower crane hook | |
| CN202296674U (en) | Safety protection device for hoist | |
| CN1569598A (en) | Braking rope type falling protector | |
| CN103434909A (en) | Speed limiting trigger | |
| CN109650212A (en) | Safety guard, elevator security control method and elevator | |
| CN108358016B (en) | Safe elevator is used in construction | |
| CN102358547B (en) | The safety guard of gig | |
| CN210117219U (en) | Safety anti-falling mechanism of lifting platform | |
| CN213505471U (en) | Progressive elevator safety tongs with excellent buffering capacity | |
| CN104405435B (en) | Safety protection device for inclined shaft engineering construction | |
| CN208166279U (en) | A kind of pause equipment for elevator counterweight block | |
| CN207404686U (en) | A kind of safe and simple insulator suspender | |
| CN220167565U (en) | Safe hanging net for building construction | |
| CN110422720A (en) | Vertical-lift full-range over speed protects system | |
| CN211945966U (en) | Drop protection device for hoisting generator rotor for dismounting generator rotor | |
| CN217812647U (en) | Self-locking anti-falling device of parking equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |