CN211255066U - Anti-falling combined external member for tower crane - Google Patents
Anti-falling combined external member for tower crane Download PDFInfo
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- CN211255066U CN211255066U CN201921719011.XU CN201921719011U CN211255066U CN 211255066 U CN211255066 U CN 211255066U CN 201921719011 U CN201921719011 U CN 201921719011U CN 211255066 U CN211255066 U CN 211255066U
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Abstract
The utility model discloses a tower crane anti-falling combination external member, which relates to the technical field of tower crane protection application, and comprises a shell and a ratchet wheel arranged in the shell, wherein a ratchet wheel cover is arranged in the shell, the ratchet wheel is arranged in the ratchet wheel cover through a ratchet wheel main shaft, a steel wire rope is arranged outside the ratchet wheel in an encircling way, a coil spring is arranged in the ratchet wheel, a double-stop key with an arc-shaped structure is arranged under the ratchet wheel, one end of the double-stop key is connected through a tension spring, the steel wire rope encircles the ratchet wheel, once the pulling-out speed of the steel wire rope is increased, the coil spring can reduce the rotating speed of the ratchet wheel and simultaneously pop out the double-stop key to clamp the ratchet wheel, the steel wire rope can stop pulling out, the tower crane anti-falling combination external member can effectively prevent the falling event caused by the installation, daily inspection and maintenance of the tower crane, can protect, meanwhile, the anti-falling combined kit has good wear-resisting effect and long service life.
Description
Technical Field
The utility model relates to a tower crane protection application technical field especially involves a tower crane combination external member of preventing falling.
Background
At present, during construction engineering construction, the overhead operation of installation, daily inspection and maintenance of a tower crane is indispensable, and the overhead falling is caused to become the most common safety accident of a construction site. The risk of safety accidents can be reduced to the minimum by utilizing the speed difference automatic control falling protector and protective combined kits such as novel safety belts, anti-skidding gloves, anti-skidding shoes and the like. If the safety rope is directly used for preventing falling to a certain extent, a human body is pulled by the safety rope due to the gravity acceleration, and once the tensile capacity of the safety rope is insufficient, the safety rope can be cracked.
The speed difference self-control falling protector can reduce the breakage of the safety rope caused by pulling and sudden pulling force caused by the safety rope, but the problem that the steel wire rope seriously abrades the protecting ring of the outlet exists in the using process, and the protecting ring of the outlet needs to be frequently replaced in the using process, so that the tower crane falling protection combination kit is needed to be provided for overcoming the defects of the prior art.
SUMMERY OF THE UTILITY MODEL
For solving the problem that prior art exists, the utility model aims at providing a tower crane combination external member of preventing falling, it can fix a position precast column reinforcing bar, improves the efficiency of construction and the accuracy of construction.
In order to achieve the purpose, the utility model discloses a tower crane anti-falling combination external member, including the casing and the ratchet wheel that sets up in the casing, be equipped with the ratchet wheel cover in the casing, the ratchet wheel is installed in the ratchet wheel cover through the ratchet wheel main shaft, wire rope is spared outside the ratchet wheel, the spring is equipped with in the ratchet wheel, be equipped with the double-stop key that is arc structure under the ratchet wheel, and double-stop key one end is connected through the extension spring, the casing bottom is seted up the outlet, the inside block of outlet has the outlet guard ring that the section is "I" font structure, the left and right sides at the inside wall top of outlet guard ring all front and back end symmetry is equipped with two draw-in grooves, rotate between two draw-in grooves and connect first deflector roll, the left and right both ends of casing bottom all set up the mounting groove that is arc structure, rotate through the transmission shaft in the mounting groove, the transmission shaft is connected to reset spring one end, and the mounting groove inside wall is connected to the other end, and the second deflector roll is parallel arrangement with first deflector roll.
Preferably, the height of the topmost part of the first guide roller is higher than the height of the outlet protection ring in the vertical direction, and the first guide roller is close to the middle of the outlet protection ring relative to the inner side wall of the outlet protection ring in the horizontal direction.
Preferably, the two connecting rods are obliquely arranged in a V-shaped structure, the two second guide rollers are symmetrically arranged relative to the vertical line in the ring-shaped of the wire outlet protection ring, and the steel wire rope passes through the space between the two second guide rollers.
Preferably, the casing passes through the bolt fastening by two shells and constitutes, and the protruding mount pad of establishing in top of casing is equipped with the rope hole that is used for connecting fixed rope on the mount pad, and upper portion is convex structure in the casing, and lower part width diminishes gradually from top to bottom in the casing, and the bottom level of casing.
Preferably, the double-stop key is of a V-shaped structure, the double-stop key is rotationally fixed in the shell through a clamping shaft, one end of the double-stop key is connected with the tension spring, the other end of the double-stop key is provided with an inclination angle, and the angle is matched with the ratchet of the ratchet wheel.
The utility model discloses a tower crane anti-falling combination external member has following beneficial effect:
the utility model discloses the tower crane is prevented falling combination external member can effectually prevent to install, daily inspection, maintenance and the emergence of the incident that falls that causes the tower crane, and personnel's that fall health safety that can the at utmost protection avoids because of the too big striking other objects of slope operation tenesmus range of swaying, and it is good to hang the combination external member of preventing falling simultaneously, long service life.
Drawings
Fig. 1 is the utility model provides a combination external member is prevented falling by tower crane's overall structure schematic diagram.
Fig. 2 is a detail enlarged structure diagram of area a in fig. 1.
The corresponding part names indicated by the numbers and letters in the drawings: 1. a housing; 2. a ratchet wheel; 3. a ratchet spindle; 4. a coil spring; 5. a double stop key; 6. a tension spring; 7. an outlet protection ring; 8. a first guide roller; 9. mounting grooves; 10. a drive shaft; 11. a connecting rod; 12. a second guide roller; 13. a return spring; 14. and a ratchet cover.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 and fig. 2, a tower crane anti-falling combination kit comprises a shell 1 and a ratchet 2 arranged inside the shell 1, a ratchet 2 cover is arranged in the shell 1, the ratchet 2 is arranged in the ratchet 2 cover through a ratchet 2 main shaft, a steel wire rope is wound outside the ratchet 2, a coil spring 4 is arranged inside the ratchet 2, a double-stop key 5 in an arc structure is arranged right below the ratchet 2, one end of the double-stop key 5 is connected through a tension spring 6, the steel wire rope is wound on the ratchet 2, once the pulling-out speed of the steel wire rope is increased, the rotating speed of the ratchet 2 is reduced by the coil spring 4, the double-stop key 5 is popped out to clamp the ratchet 2, the steel wire rope stops pulling out, after the safety of operating personnel, the tension on the steel wire rope is reduced, the coil spring 4 winds the steel wire rope into the ratchet 2 by utilizing the elastic potential energy of the coil spring 4, the double-stop key, an outlet protection ring 7 with an I-shaped section is clamped inside the rope outlet, two clamping grooves are symmetrically arranged at the front end and the rear end of the left side and the right side of the top of the inner side wall of the outlet protection ring 7, a first guide roller 8 is rotatably connected between the two clamping grooves, mounting grooves 9 with an arc structure are concavely arranged at the left end and the right end of the bottom of the shell 1, a connecting rod 11 is rotatably connected in the mounting groove 9 through a transmission shaft 10, a second guide roller 12 is rotatably connected on the connecting rod 11, a reset spring 13 is sleeved outside the transmission shaft 10, one end of the reset spring 13 is connected with the transmission shaft 10, the other end of the reset spring is connected with the inner side wall of the mounting groove 9, the second guide roller 12 is parallel to the first guide roller 8, and when the rope is discharged, the steel wire rope extends out of the shell 1 from the outlet protection ring 7, and after the, meanwhile, when the steel wire rope passes through the space between the two second guide rollers 12, if the steel wire rope inclines, the steel wire rope can be in rolling contact with the second guide roller 12 on the left side or the right side, meanwhile, the restoring force of the reset spring 13 can help the steel wire rope to restore to the vertical position, and the steel wire rope is prevented from being in inclined contact with the outlet protection ring 7 to wear the outlet protection ring 7.
As the utility model discloses a technical optimization scheme, in the vertical direction, first deflector roll 8 is high higher than outlet protection ring 7's height at top, and on the horizontal direction, first deflector roll 8 is close to outlet protection ring 7 middle part for outlet protection ring 7's inside wall.
By adopting the technical scheme, the first guide roller 8 can prevent the steel wire rope from obliquely contacting the top of the outlet protection ring 7 when passing through the outlet protection ring 7, so that the outlet protection ring 7 is abraded, and the service life of the outlet protection ring 7 is effectively prolonged.
As a technical optimization scheme of the utility model, two connecting rods 11 are "V" shape structure slope setting, and two second deflector rolls 12 are the symmetry setting about the shape plumb line in outlet guard ring 7, and wire rope passes between two second deflector rolls 12.
By adopting the technical scheme, the steel wire rope can be helped to recover to the vertical position by utilizing the rolling contact of the second guide roller 12 and the steel wire rope and the restoring force of the return spring 13, and the steel wire rope and the outlet protection ring 7 are prevented from being in inclined contact to wear the outlet protection ring 7.
As a technical optimization scheme of the utility model, casing 1 passes through the bolt fastening by two shells and constitutes, and the protruding mount pad of establishing in casing 1's top is equipped with the rope hole that is used for connecting fixed rope on the mount pad, and upper portion is convex structure in casing 1, and casing 1 middle and lower part width diminishes from top to bottom gradually, casing 1's bottom level.
Through adopting above-mentioned technical scheme, upper portion is convex structure in the casing 1 and can guarantees that ratchet 2 normally rotates, and lower part slope draws close in the casing 1, can practice thrift casing 1 materials.
As a technical optimization scheme of the utility model, two keys 5 that end are "V" shape structure, two through the trip shaft rotation of ending key 5 fix in casing 1, two 5 one ends of ending key connect extension spring 6, the other end is equipped with inclination, and the ratchet looks adaptations of angle and ratchet 2.
Through adopting above-mentioned technical scheme to can utilize the ratchet of 5 right-hand members block ratchet 2 of two end keys, prevent ratchet 2 and rotate.
When the tower crane anti-falling combination kit provided by the utility model is used, once the pulling-out speed of the steel wire rope is increased, the double-stop key 5 pops out to block the ratchet 2 when the coil spring 4 can reduce the rotating speed of the ratchet 2, the steel wire rope stops pulling out, after the safety of operators, the pulling force to the steel wire rope is reduced, the coil spring 4 uses the elastic potential energy of the coil spring to roll the steel wire rope into the ratchet 2, the double-stop key 5 loosens the blocked ratchet 2 to return to the original working state, the steel wire rope extends out of the shell 1 from the wire outlet protection ring 7, after being pulled, the first guide roller 8 is in rolling contact with the steel wire rope, the friction between the steel wire rope and the wire outlet protection ring can be reduced, meanwhile, when the steel wire rope passes between the two second guide rollers 12, if the steel wire rope inclines, the steel wire rope can be in rolling contact with the second guide roller 12 on the, the wire rope and the outlet protection ring 7 are prevented from being in inclined contact with each other to wear the outlet protection ring 7.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a tower crane anti-falling combination external member, includes the casing and sets up the ratchet inside the casing, be equipped with the ratchet cover in the casing, the ratchet passes through the ratchet main shaft and installs in the ratchet cover, wire rope is established to the outside rich of ratchet, the inside wind spring that is equipped with of ratchet, be equipped with the double-end key that is the arc structure under the ratchet, just double-end key one end is passed through the extension spring and is connected its characterized in that: the utility model discloses a cable outlet protection device, including casing, the inside block of outlet has the section to be the outlet guard ring of "worker" font structure, the equal front and back end symmetry in the left and right sides at outlet guard ring inside wall top is equipped with two draw-in grooves, two rotate between the draw-in groove and connect first deflector roll, the mounting groove that is the arc structure is all concavely established at both ends about the casing bottom, rotate through the transmission shaft in the mounting groove and connect the connecting rod, rotate on the connecting rod and connect the second deflector roll, wherein reset spring is established to the outside cover of transmission shaft, the transmission shaft is connected to reset spring one end, and the mounting groove inside wall is connected to the other end, the second deflector.
2. The tower crane anti-falling combination kit according to claim 1, wherein: in the vertical direction, the height of the topmost part of the first guide roller is higher than that of the outlet protection ring, and in the horizontal direction, the first guide roller is close to the middle part of the outlet protection ring relative to the inner side wall of the outlet protection ring.
3. The tower crane anti-falling combination kit according to claim 1, wherein: two the connecting rod is the slope setting of "V" shape structure, two the second deflector roll is the symmetry setting about the outlet protection ring internal curve plumb line, wire rope passes between two second deflector rolls.
4. The tower crane anti-falling combination kit according to claim 1, wherein: the casing passes through the bolt fastening by two shells and constitutes, the protruding mount pad of establishing in top of casing, be equipped with the rope hole that is used for connecting fixed rope on the mount pad, upper portion is convex structure in the casing, the lower part width diminishes from top to bottom gradually in the casing, the bottom level of casing.
5. The tower crane anti-falling combination kit according to claim 1, wherein: the double-stop key is of a V-shaped structure, the double-stop key is fixed in the shell in a rotating mode through the clamping shaft, one end of the double-stop key is connected with the tension spring, the other end of the double-stop key is provided with an inclination angle, and the angle is matched with the ratchet of the ratchet wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921719011.XU CN211255066U (en) | 2019-10-14 | 2019-10-14 | Anti-falling combined external member for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921719011.XU CN211255066U (en) | 2019-10-14 | 2019-10-14 | Anti-falling combined external member for tower crane |
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| Publication Number | Publication Date |
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| CN211255066U true CN211255066U (en) | 2020-08-14 |
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| CN201921719011.XU Active CN211255066U (en) | 2019-10-14 | 2019-10-14 | Anti-falling combined external member for tower crane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723189A (en) * | 2021-02-26 | 2021-04-30 | 深圳市瑾能顺建材有限公司 | Following formula tower crane cat ladder anti-falling device |
| CN114922454A (en) * | 2022-06-20 | 2022-08-19 | 长江精工钢结构(集团)股份有限公司 | Barrier-free anti-falling device suitable for light steel roof construction and use method thereof |
| CN117023428A (en) * | 2023-08-08 | 2023-11-10 | 湖北工业大学 | Tower crane safety device, auxiliary climbing equipment for tower crane and lifting equipment for tower crane |
-
2019
- 2019-10-14 CN CN201921719011.XU patent/CN211255066U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723189A (en) * | 2021-02-26 | 2021-04-30 | 深圳市瑾能顺建材有限公司 | Following formula tower crane cat ladder anti-falling device |
| CN112723189B (en) * | 2021-02-26 | 2023-11-14 | 深圳市瑾能顺建材有限公司 | Follow-up type tower crane cat ladder anti-falling device |
| CN114922454A (en) * | 2022-06-20 | 2022-08-19 | 长江精工钢结构(集团)股份有限公司 | Barrier-free anti-falling device suitable for light steel roof construction and use method thereof |
| CN117023428A (en) * | 2023-08-08 | 2023-11-10 | 湖北工业大学 | Tower crane safety device, auxiliary climbing equipment for tower crane and lifting equipment for tower crane |
| CN117023428B (en) * | 2023-08-08 | 2024-03-12 | 湖北工业大学 | Tower crane safety device, auxiliary climbing equipment for tower crane and lifting equipment for tower crane |
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