CN217498520U - Rope breakage protection device for tower crane hook - Google Patents
Rope breakage protection device for tower crane hook Download PDFInfo
- Publication number
- CN217498520U CN217498520U CN202220812990.9U CN202220812990U CN217498520U CN 217498520 U CN217498520 U CN 217498520U CN 202220812990 U CN202220812990 U CN 202220812990U CN 217498520 U CN217498520 U CN 217498520U
- Authority
- CN
- China
- Prior art keywords
- box body
- wire rope
- lifting hook
- tower crane
- protection device
- 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.)
- Active
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model provides a rope breakage protection device for a tower crane hook, belonging to the technical field of tower cranes; the tower crane lifting hook protection device that restricts absolutely includes wire rope, and the tower crane lifting hook protection device that restricts absolutely includes: the device comprises a box body, pulleys, a fixing plate, a clamping plate, a hydraulic rod and a contact switch; the box body is a hollow cavity, and the steel wire rope penetrates through the top of the box body; the two pulleys are embedded in the box body, the two pulleys are rotationally connected with the box body, and the steel wire rope is wound on the outer sides of the two pulleys; the fixing plates are L-shaped, the two fixing plates are fixed at the top of the box body, and the fixing plates are positioned on one side of the steel wire rope; the clamping plates are positioned on the other side of the steel wire rope, and the two clamping plates are respectively opposite to the two fixing plates; the two hydraulic rods are fixed at the top of the box body and are respectively connected with the two clamping plates; the two contact switches are respectively arranged on the inner walls of the two sides of the box body, the contact switches are opposite to the steel wire rope, and the contact switches are electrically connected with the hydraulic rod.
Description
Technical Field
The utility model belongs to the technical field of the tower crane, concretely relates to tower crane lifting hook protection device that restricts absolutely.
Background
In the construction process of buildings, the building materials are generally hoisted by a tower crane. The lifting hook of the tower crane is connected with the front arm of the tower crane through a steel wire rope, and the lifting hook is driven by the steel wire rope to move up and down so as to realize the hoisting of building materials; however, when the heavy object hung by the hook is too heavy or the steel wire rope is aged, the steel wire rope is easy to break, so that the hook connected with the steel wire rope quickly drops, and the personal and property safety of a construction site is greatly threatened, so that the design of the device for protecting the broken rope of the tower crane hook is very necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the lifting hook that exists among the above-mentioned prior art and hang when the heavy object is overweight or wire rope is ageing, wire rope breaks easily to cause the quick tenesmus of lifting hook that is connected with wire rope, cause very big threat scheduling problem to the person and the property safety of job site, the utility model provides a tower crane lifting hook rope breakage protection device, the adoption sets up contact switch at the inner wall of box body, when the wire rope that realizes one side breaks, the box body will take place the slope, so that wire rope contacts with contact switch, thereby make contact switch trigger hydraulic stem start, drive the clamp plate with the hydraulic stem and remove, press from both sides wire rope with the cooperation of realization clamp plate and fixed plate, with the action of realization "locking", drop with the prevention box body, and then realize the rope breakage protection effect of lifting hook. The specific technical scheme is as follows:
the utility model provides a tower crane lifting hook protection device that restricts absolutely, tower crane lifting hook protection device that restricts absolutely includes wire rope, and tower crane lifting hook protection device that restricts absolutely includes: the device comprises a box body, a pulley, a fixed plate, a clamping plate, a hydraulic rod and a contact switch; the box body is a hollow cavity, and the steel wire rope penetrates through the top of the box body; the two pulleys are embedded in the box body, the two pulleys are rotationally connected with the box body, and the steel wire rope is wound on the outer sides of the two pulleys; the fixing plates are L-shaped, the two fixing plates are fixed at the top of the box body, and the fixing plates are positioned on one side of the steel wire rope; the clamping plates are positioned on the other side of the steel wire rope, and the two clamping plates are respectively opposite to the two fixing plates; the two hydraulic rods are fixed at the top of the box body and are respectively connected with the two clamping plates; the two contact switches are respectively arranged on the inner walls of the two sides of the box body, the contact switches are opposite to the steel wire rope, and the contact switches are electrically connected with the hydraulic rod.
Additionally, the utility model provides an among the above-mentioned technical scheme rope breakage protection device of tower crane lifting hook can also have following additional technical characteristic:
in above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: a guide bar; one end of at least two guide rods is connected with the fixed plate, and the other end of at least two guide rods passes through the clamping plate.
In above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: a spring; the spring is sleeved outside the guide rod, one end of the spring is connected with the fixing plate, and the other end of the spring is connected with the clamping plate.
In above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: a limiting part; the limiting part is arranged at the other end of the guide rod and is positioned at one side of the clamping plate; wherein, the diameter of spacing portion is greater than the diameter of guide bar.
In above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: a first clamping pad and a second clamping pad; the first clamping pad is an elastic body and is fixed on the fixing plate; the second clamping pad is an elastic body and is fixed on the clamping plate, and the second clamping pad is opposite to the first clamping pad.
In above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: a yielding groove; the abdicating groove is arranged at the top of the box body and is wound on the outer side of the steel wire rope; wherein, there is a clearance between the groove of stepping down and the wire rope.
In above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: a limiting frame; the limiting frame is connected with the inner wall of the box body, the limiting frame is wound on the outer side of the steel wire rope, and the contact switch is embedded into the limiting frame.
In above-mentioned technical scheme, tower crane lifting hook rope breakage protection device still includes: the connecting device comprises a connecting frame, a connecting rod, a bearing, a clamping part and a lifting hook; the connecting frame is connected with the bottom of the box body; the connecting rod passes through the connecting frame; the bearing is sleeved outside the connecting rod and embedded in the connecting frame; the clamping part is connected with the connecting rod, embedded into the connecting frame and attached to the bearing; the lifting hook is connected with the connecting rod, and the lifting hook is located the outside of link.
The utility model discloses a tower crane lifting hook protection device that restricts absolutely compares with prior art, and beneficial effect is:
1. the steel wire rope penetrates through the top of the box body, the two pulleys are rotatably connected with the box body, and the steel wire rope is wound on the outer sides of the two pulleys, so that the two pulleys support the steel wire rope, a movable pulley structure is formed, and the steel wire rope drives the box body to move up and down; the L-shaped fixing plate is fixed at the top of the box body, the clamping plate is opposite to the fixing plate, the clamping plate and the fixing plate are positioned on two sides of the steel wire rope, meanwhile, the hydraulic cylinder is fixed at the top of the box body, and the hydraulic rod is connected with the clamping plate, so that the hydraulic rod drives the clamping plate to move, and the clamping plate is matched with the fixing plate to clamp the steel wire rope; the two contact switches are respectively arranged on the inner walls of the two sides of the box body, and the contact switches are opposite to the steel wire rope, so that when the steel wire rope on one side is broken, the box body inclines to one side, and the contact switch on the other side in the box body is in contact with the steel wire rope; meanwhile, the contact switch is electrically connected with the hydraulic rod, so that when the contact switch is in contact with the steel wire rope, the contact switch triggers the hydraulic rod to be started, and the hydraulic rod drives the clamping plate to move. Adopt above-mentioned structure, when the wire rope of one side breaks, the slope will take place for the box body to make wire rope and contact switch contact, thereby make contact switch trigger the hydraulic stem and start, drive the clamp plate with the hydraulic stem and remove, press from both sides wire rope with the fixed plate cooperation with the clamp plate is tight, with the action of realization "locking", drop in order to prevent the box body, and then realize the disconnected rope protection of tower crane lifting hook.
2. One end through two at least guide bars is connected with the fixed plate to make the other end of two at least guide bars pass the grip block, support the guide bar in order to realize the fixed plate, simultaneously, still can realize the grip block and remove along the guide bar, thereby prevent that the grip block from taking place the skew when removing, with the stability that promotes the grip block and remove, and then ensure that the grip block cooperatees with the fixed plate and press from both sides wire rope tightly.
3. The spring sleeve is arranged on the outer side of the guide rod, one end of the spring is connected with the fixed plate, the other end of the spring is connected with the clamping plate, the fixed plate and the clamping plate are supported by the spring, the distance between the fixed plates is ensured, the clamping plate is prevented from interfering with a steel wire rope during normal operation, and the steel wire rope is damaged.
4. Through establishing spacing portion at the other end of guide bar, make spacing portion be located one side of pinch-off blades to the diameter that makes spacing portion is greater than the diameter of guide bar, it is spacing to realize that spacing portion carries on the pinch-off blades, thereby avoids the roll-off on the pinch-off blades guide bar.
5. Through pressing from both sides tight pad with first clamp and the second and pressing from both sides tight pad and setting up to the elastomer, press from both sides tight pad with first clamp and fix on the fixed plate, press from both sides tight pad with the second and fix on the clamp plate to it is relative with first clamp tight pad to make the second press from both sides tight pad and first clamp and press from both sides tight pad and cooperate and press from both sides wire rope tightly, thereby increase the frictional force of clamp plate and fixed plate and wire rope, and then promote the tight effect of clamp to wire rope.
6. Through will stepping down the groove setting at the top of box body, will step down the groove around establishing in wire rope's the outside to it is gapped between groove and the wire rope to make, takes place to interfere with the box body in order to avoid wire rope, thereby prevents that wire rope from taking place the condition emergence of damaging because of contacting with the box body, and then promotes the quality of product.
7. Through being connected the inner wall of spacing with the box body, with spacing around establishing in wire rope's the outside to make in the contact switch embedding spacing, in order to realize the swing range through spacing restriction wire rope, thereby ensure that wire rope and contact switch can contact, and then promote the use of product and experience.
8. The connecting frame is connected with the bottom of the box body, the connecting rod penetrates through the connecting frame, the bearing is sleeved on the outer side of the connecting rod, and the bearing is embedded into the connecting frame, so that the connecting rod is rotatably connected with the connecting frame; the clamping part is connected with the connecting rod and attached to the bearing, so that the connecting rod is clamped with the bearing, and the connecting rod is prevented from being separated from the connecting frame; through being connected the lifting hook with the connecting rod to make the lifting hook be located the outside of link, in order to realize lifting hook and connecting rod synchronous rotation, thereby promote the flexibility of lifting hook.
Drawings
Fig. 1 is a schematic structural view of a rope breakage protection device for a tower crane hook according to embodiments 1 and 2 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
10 steel wire ropes, 11 boxes, 12 pulleys, 13 fixing plates, 14 clamping plates, 15 hydraulic rods, 16 contact switches, 17 guide rods, 18 springs, 19 limiting parts, 20 first clamping pads, 21 second clamping pads, 22 abdicating grooves, 23 limiting frames, 24 connecting frames, 25 connecting rods, 26 bearings, 27 clamping parts and 28 lifting hooks.
Detailed Description
The present invention will be further described with reference to the following embodiments and accompanying fig. 1-3, but the present invention is not limited to these embodiments.
Example 1:
the utility model provides a tower crane lifting hook protection device that restricts absolutely, as shown in fig. 1 to 3, tower crane lifting hook protection device that restricts absolutely includes wire rope 10, and tower crane lifting hook protection device that restricts absolutely includes: a box body 11, a pulley 12, a fixing plate 13, a clamping plate 14, a hydraulic rod 15 and a contact switch 16; the box body 11 is a hollow cavity, and the steel wire rope 10 penetrates through the top of the box body 11; the two pulleys 12 are embedded in the box body 11, the two pulleys 12 are rotatably connected with the box body 11, and the steel wire rope 10 is wound on the outer sides of the two pulleys 12; the fixing plates 13 are L-shaped, the two fixing plates 13 are fixed at the top of the box body 11, and the fixing plates 13 are positioned at one side of the steel wire rope 10; the clamping plate 14 is positioned at the other side of the steel wire rope 10, and the two clamping plates 14 are respectively opposite to the two fixing plates 13; the two hydraulic rods 15 are fixed at the top of the box body 11, and the two hydraulic rods 15 are respectively connected with the two clamping plates 14; two contact switches 16 are respectively provided on both side inner walls of the case 11, the contact switches 16 are opposed to the wire rope 10, and the contact switches 16 are electrically connected to the hydraulic rod 15.
The steel wire rope 10 penetrates through the top of the box body 11, the two pulleys 12 are rotatably connected with the box body 11, and the steel wire rope 10 is wound on the outer sides of the two pulleys 12, so that the two pulleys 12 support the steel wire rope 10, a movable pulley 12 structure is formed, and the steel wire rope 10 drives the box body 11 to move up and down; the L-shaped fixing plate 13 is fixed at the top of the box body 11, the clamping plate 14 is opposite to the fixing plate 13, the clamping plate 14 and the fixing plate 13 are located on two sides of the steel wire rope 10, meanwhile, the hydraulic cylinder is fixed at the top of the box body 11, and the hydraulic rod 15 is connected with the clamping plate 14, so that the hydraulic rod 15 drives the clamping plate 14 to move, and the clamping plate 14 is matched with the fixing plate 13 to clamp the steel wire rope 10; by arranging two contact switches 16 on the inner walls of two sides of the box body 11 respectively and making the contact switches 16 opposite to the steel wire rope 10, when the steel wire rope 10 on one side is broken, the box body 11 inclines to one side, and the contact switch 16 on the other side in the box body 11 is in contact with the steel wire rope 10; meanwhile, the contact switch 16 is electrically connected with the hydraulic rod 15, so that when the contact switch 16 is contacted with the steel wire rope 10, the contact switch 16 triggers the hydraulic rod 15 to start, and the hydraulic rod 15 drives the clamping plate 14 to move. Adopt above-mentioned structure, when the wire rope 10 of one side breaks, the slope will take place for box body 11 to make wire rope 10 and contact switch 16 contact, thereby make contact switch 16 trigger hydraulic stem 15 and start, drive the clamp plate 14 with hydraulic stem 15 and remove, press from both sides wire rope 10 with the cooperation of realization clamp plate 14 and fixed plate 13, in order to realize the action of "locking", in order to prevent that box body 11 from dropping, and then realize the broken rope protection of tower crane lifting hook 28.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a guide rod 17; one ends of the at least two guide rods 17 are connected to the fixing plate 13, and the other ends of the at least two guide rods 17 pass through the clamping plate 14.
One end of at least two guide rods 17 is connected with the fixed plate 13, and the other end of at least two guide rods 17 penetrates through the clamping plate 14, so that the fixed plate 13 supports the guide rods 17, and meanwhile, the clamping plate 14 can move along the guide rods 17, so that the clamping plate 14 is prevented from deviating when moving, the moving stability of the clamping plate 14 is improved, and the clamping plate 14 is ensured to be matched with the fixed plate 13 to clamp the steel wire rope 10.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a spring 18; the spring 18 is sleeved on the outer side of the guide rod 17, one end of the spring 18 is connected with the fixing plate 13, and the other end of the spring 18 is connected with the clamping plate 14.
Through establishing spring 18 at the outside of guide bar 17, be connected spring 18's one end with fixed plate 13 to be connected spring 18's the other end with pinch-off blades 14, support fixed plate 13 and pinch-off blades 14 with the realization spring 18, thereby ensure the distance between fixed plate 13, avoid when normal work, pinch-off blades 14 and wire rope 10 take place to interfere, and then make wire rope 10 take place to damage.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a stopper 19; the limiting part 19 is arranged at the other end of the guide rod 17, and the limiting part 19 is positioned at one side of the clamping plate 14; wherein, the diameter of the limiting part 19 is larger than that of the guide rod 17.
The limiting part 19 is arranged at the other end of the guide rod 17, the limiting part 19 is positioned on one side of the clamping plate 14, the diameter of the limiting part 19 is larger than that of the guide rod 17, the limiting part 19 limits the clamping plate 14, and therefore the clamping plate 14 is prevented from sliding out of the guide rod 17.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a first clamping pad 20 and a second clamping pad 21; the first clamping pad 20 is an elastic body, and the first clamping pad 20 is fixed on the fixing plate 13; the second clamping pad 21 is an elastic body, the second clamping pad 21 is fixed on the clamping plate 14, and the second clamping pad 21 is opposite to the first clamping pad 20.
The first clamping pad 20 is fixed on the fixing plate 13, the second clamping pad 21 is fixed on the clamping plate 14, and the second clamping pad 21 is opposite to the first clamping pad 20 by arranging the first clamping pad 20 and the second clamping pad 21 as elastic bodies, so that the second clamping pad 21 and the first clamping pad 20 are matched to clamp the steel wire rope 10, the friction force between the clamping plate 14 and the fixing plate 13 and the steel wire rope 10 is increased, and the clamping effect on the steel wire rope 10 is improved.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a relief groove 22; the abdicating groove 22 is arranged at the top of the box body 11, and the abdicating groove 22 is wound on the outer side of the steel wire rope 10; wherein, a gap is arranged between the abdicating groove 22 and the steel wire rope 10.
Through will stepping down the groove 22 and setting up at the top of box body 11, will step down groove 22 around establishing in the outside of wire rope 10 to it is gapped to make between groove 22 and the wire rope 10 of stepping down, takes place to interfere with box body 11 in order to avoid wire rope 10, thereby prevents that wire rope 10 from taking place the condition emergence of damage because of contacting with box body 11, and then promotes the quality of product.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a stopper bracket 23; the limiting frame 23 is connected with the inner wall of the box body 11, the limiting frame 23 is wound on the outer side of the steel wire rope 10, and the contact switch 16 is embedded in the limiting frame 23.
Through being connected spacing 23 with the inner wall of box body 11, with spacing 23 around establishing in wire rope 10's the outside to make contact switch 16 imbed in spacing 23, in order to realize the swing range through spacing 23 restriction wire rope 10, thereby ensure that wire rope 10 and contact switch 16 can contact, and then promote the use of product and experience.
Example 2:
the utility model provides a tower crane lifting hook protection device that restricts absolutely, as shown in fig. 1 to 3, tower crane lifting hook protection device that restricts absolutely includes wire rope 10, and tower crane lifting hook protection device that restricts absolutely includes: a box body 11, a pulley 12, a fixing plate 13, a clamping plate 14, a hydraulic rod 15 and a contact switch 16; the box body 11 is a hollow cavity, and the steel wire rope 10 penetrates through the top of the box body 11; the two pulleys 12 are embedded in the box body 11, the two pulleys 12 are rotatably connected with the box body 11, and the steel wire rope 10 is wound on the outer sides of the two pulleys 12; the fixing plates 13 are L-shaped, the two fixing plates 13 are fixed at the top of the box body 11, and the fixing plates 13 are positioned at one side of the steel wire rope 10; the clamping plate 14 is positioned at the other side of the steel wire rope 10, and the two clamping plates 14 are respectively opposite to the two fixing plates 13; the two hydraulic rods 15 are fixed at the top of the box body 11, and the two hydraulic rods 15 are respectively connected with the two clamping plates 14; two contact switches 16 are respectively provided on both side inner walls of the case 11, the contact switches 16 are opposed to the wire rope 10, and the contact switches 16 are electrically connected to the hydraulic rod 15.
The steel wire rope 10 penetrates through the top of the box body 11, the two pulleys 12 are rotatably connected with the box body 11, and the steel wire rope 10 is wound on the outer sides of the two pulleys 12 to support the steel wire rope 10 through the two pulleys 12, so that a movable pulley 12 structure is formed, and the steel wire rope 10 drives the box body 11 to move up and down; the L-shaped fixing plate 13 is fixed at the top of the box body 11, the clamping plate 14 is opposite to the fixing plate 13, the clamping plate 14 and the fixing plate 13 are located on two sides of the steel wire rope 10, meanwhile, the hydraulic cylinder is fixed at the top of the box body 11, and the hydraulic rod 15 is connected with the clamping plate 14, so that the hydraulic rod 15 drives the clamping plate 14 to move, and the clamping plate 14 is matched with the fixing plate 13 to clamp the steel wire rope 10; by arranging two contact switches 16 on the inner walls of two sides of the box body 11 respectively and making the contact switches 16 opposite to the steel wire rope 10, when the steel wire rope 10 on one side is broken, the box body 11 inclines to one side, and the contact switch 16 on the other side in the box body 11 is in contact with the steel wire rope 10; meanwhile, the contact switch 16 is electrically connected with the hydraulic rod 15, so that when the contact switch 16 is in contact with the steel wire rope 10, the contact switch 16 triggers the hydraulic rod 15 to start, and the hydraulic rod 15 drives the clamping plate 14 to move. Adopt above-mentioned structure, when the wire rope 10 of one side breaks, the slope will take place for box body 11 to make wire rope 10 and contact switch 16 contact, thereby make contact switch 16 trigger hydraulic stem 15 and start, drive the clamp plate 14 with hydraulic stem 15 and remove, press from both sides wire rope 10 tightly with the cooperation of realization clamp plate 14 and fixed plate 13, in order to realize the action of "locking", in order to prevent that box body 11 from dropping, and then realize tower crane lifting hook 28's disconnected rope protection.
The utility model discloses an in the embodiment, as shown in FIG. 1 to FIG. 3, the broken rope protection device of tower crane lifting hook still includes: a connecting frame 24, a connecting rod 25, a bearing 26, a clamping part 27 and a lifting hook 28; the connecting frame 24 is connected with the bottom of the box body 11; the connecting rod 25 passes through the connecting frame 24; the bearing 26 is sleeved outside the connecting rod 25, and the bearing 26 is embedded in the connecting frame 24; the clamping portion 27 is connected with the connecting rod 25, the clamping portion 27 is embedded into the connecting frame 24, and the clamping portion 27 is attached to the bearing 26; the hook 28 is connected to the connecting rod 25, and the hook 28 is located outside the connecting frame 24.
The connecting frame 24 is connected with the bottom of the box body 11, the connecting rod 25 penetrates through the connecting frame 24, the bearing 26 is sleeved on the outer side of the connecting rod 25, and the bearing 26 is embedded into the connecting frame 24, so that the connecting rod 25 is rotatably connected with the connecting frame 24; the clamping portion 27 is attached to the bearing 26 by connecting the clamping portion 27 with the connecting rod 25, so that the connecting rod 25 is clamped with the bearing 26, and the connecting rod 25 is prevented from being separated from the connecting frame 24; the hook 28 is connected with the connecting rod 25, and the hook 28 is positioned on the outer side of the connecting frame 24, so that the hook 28 and the connecting rod 25 rotate synchronously, and the flexibility of the hook 28 is improved.
Claims (8)
1. The utility model provides a tower crane lifting hook protection device that restricts absolutely, tower crane lifting hook protection device that restricts absolutely includes wire rope, its characterized in that, tower crane lifting hook protection device that restricts absolutely includes:
the box body is a hollow cavity, and the steel wire rope penetrates through the top of the box body;
the two pulleys are embedded into the box body, are rotatably connected with the box body, and are wound on the outer sides of the two pulleys;
the fixing plates are L-shaped, the two fixing plates are fixed at the top of the box body, and the fixing plates are positioned on one side of the steel wire rope;
the clamping plate is positioned on the other side of the steel wire rope, and the two clamping plates are respectively opposite to the two fixing plates;
the two hydraulic rods are fixed at the top of the box body and are respectively connected with the two clamping plates;
the contact switches are arranged on the inner walls of the two sides of the box body respectively, are opposite to the steel wire rope and are electrically connected with the hydraulic rod.
2. The tower crane lifting hook rope breakage protection device of claim 1, wherein the tower crane lifting hook rope breakage protection device further comprises:
and one ends of at least two guide rods are connected with the fixed plate, and the other ends of the at least two guide rods penetrate through the clamping plate.
3. The tower crane lifting hook rope breakage protection device of claim 2, wherein the tower crane lifting hook rope breakage protection device further comprises:
the spring is sleeved on the outer side of the guide rod, one end of the spring is connected with the fixing plate, and the other end of the spring is connected with the clamping plate.
4. The tower crane lifting hook rope breakage protection device of claim 3, wherein the tower crane lifting hook rope breakage protection device further comprises:
the limiting part is arranged at the other end of the guide rod and is positioned on one side of the clamping plate;
wherein, the diameter of spacing portion is greater than the diameter of guide bar.
5. The tower crane lifting hook rope breakage protection device according to claim 4, further comprising:
the first clamping pad is an elastic body and is fixed on the fixing plate;
the second presss from both sides tight pad, the second presss from both sides tight pad and is the elastomer, the second presss from both sides tight pad and fixes on the clamp plate, just the second presss from both sides tight pad with first clamp is tight to be filled up relatively.
6. The tower crane lifting hook rope breakage protection device according to claim 5, further comprising:
the abdicating groove is arranged at the top of the box body and is wound on the outer side of the steel wire rope;
and a gap is reserved between the abdicating groove and the steel wire rope.
7. The tower crane lifting hook rope breakage protection device of claim 6, wherein the tower crane lifting hook rope breakage protection device further comprises:
the limiting frame is connected with the inner wall of the box body, the limiting frame is wound on the outer side of the steel wire rope, and the contact switch is embedded into the limiting frame.
8. The tower crane lifting hook rope breakage protection device according to any one of claims 1 to 7, wherein the tower crane lifting hook rope breakage protection device further comprises:
the connecting frame is connected with the bottom of the box body;
the connecting rod penetrates through the connecting frame;
the bearing is sleeved on the outer side of the connecting rod and embedded into the connecting frame;
the clamping portion is connected with the connecting rod, embedded into the connecting frame and attached to the bearing;
the lifting hook, the lifting hook with the connecting rod is connected, just the lifting hook is located the outside of link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220812990.9U CN217498520U (en) | 2022-04-08 | 2022-04-08 | Rope breakage protection device for tower crane hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220812990.9U CN217498520U (en) | 2022-04-08 | 2022-04-08 | Rope breakage protection device for tower crane hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217498520U true CN217498520U (en) | 2022-09-27 |
Family
ID=83349695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220812990.9U Active CN217498520U (en) | 2022-04-08 | 2022-04-08 | Rope breakage protection device for tower crane hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217498520U (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
- 2022-04-08 CN CN202220812990.9U patent/CN217498520U/en active Active
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 |
|---|---|---|
| CN217498520U (en) | Rope breakage protection device for tower crane hook | |
| CN210594922U (en) | Hook structure for hoisting and carrying | |
| CN210884898U (en) | End beam of bridge crane | |
| CN116119517A (en) | Automatic anti-torsion device for port crane lifting appliance | |
| CN219314438U (en) | Lifting device of crane lifting appliance | |
| CN106927331B (en) | Speed-limiting anti-falling device for elevator transformation | |
| CN217972311U (en) | Hoisting equipment prevents askew and draws oblique hoist and mount to put | |
| CN209306822U (en) | A kind of mechanical hoisting clamping device | |
| CN214192236U (en) | Crane steel wire rope anti-drop device | |
| CN210884899U (en) | Hoist steel reinforcement cage hoist | |
| CN112158742B (en) | Remote control equipment for electromechanical installation | |
| CN211594658U (en) | Hydraulic hoisting mechanism for bridge construction | |
| CN109795949B (en) | Lifting appliance used in engineering construction process | |
| CN2316303Y (en) | Parachute for vertical lifting machinery | |
| CN211141329U (en) | Hoisting machinery wire rope operation protection equipment | |
| CN211871169U (en) | Steel bar hoisting and clamping device for building engineering | |
| CN213505561U (en) | Concrete tank crane anti-falling safety protection device | |
| CN214733761U (en) | Simple oil drum hoisting tool | |
| CN205575369U (en) | Sash weight device is raised to stacking crane rouleau | |
| CN218320246U (en) | Steel plate moving mechanism for machining of mining machinery parts | |
| CN212924118U (en) | Anti-falling safety lock of single-beam crane | |
| CN214192234U (en) | Anti-drop type lifting hook for crane | |
| CN216737149U (en) | Roller hoisting tool | |
| CN219546477U (en) | Civil air defense door panel hoisting clamp | |
| CN216471776U (en) | Safe and durable hoisting hook of bridge crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |