CN114658345A - Safety fire ladder - Google Patents
Safety fire ladder Download PDFInfo
- Publication number
- CN114658345A CN114658345A CN202210365896.8A CN202210365896A CN114658345A CN 114658345 A CN114658345 A CN 114658345A CN 202210365896 A CN202210365896 A CN 202210365896A CN 114658345 A CN114658345 A CN 114658345A
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- CN
- China
- Prior art keywords
- ladder
- ladder frame
- support
- frame
- seat
- 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
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
- E06C7/04—Hand-operated extending means carried by the ladder
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/081—Rungs or other treads comprising anti-slip features
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/46—Non-skid equipment
Abstract
The invention discloses a safe fire ladder, which relates to the technical field of fire ladders and comprises a main fire ladder support, a kicking support and a stay bar, wherein the main fire ladder support comprises a main fixed support, a first ladder frame and a second ladder frame, an anti-clamping type supporting and guiding mechanism is fixedly arranged at the side end of the first ladder frame, the second ladder frame is sleeved in a clamping groove of the anti-clamping type supporting and guiding mechanism, a supporting clamping groove seat can limit the second ladder frame, the outer end of the second ladder frame and the inner side of the first ladder frame cannot generate friction by enabling the second ladder frame to move upwards in the supporting clamping groove seat without generating offset, and the anti-clamping pulley can enable the second ladder frame to move upwards more smoothly without generating the phenomenon of clamping; the antiwind cover seat can play spacing effect for stay cord and driving rope can slide in appropriate within range through every part of kicking the spacing formula antiwind subassembly of support side, effectively avoid stay cord and driving rope to take place winding phenomenon.
Description
Technical Field
The invention relates to the technical field of fire ladders, in particular to a safety fire ladder.
Background
The fire ladder is also called as an escape ladder, and is an escape passage when a building facility is used as a fire hazard, at present, high-rise buildings of various markets, houses and office buildings are more and more, the application of the fire ladder is more and more extensive, the fire ladder in public places such as houses, markets, hotels also becomes an indispensable article, and when a fire hazard occurs, fire fighters need to carry fire water pipes to step on the fire ladder for putting out a fire. CN211874363U discloses a novel fire ladder which is good in firmness, convenient to use, light in weight and good in safety, and because the pulling-up force is biased to a kicking bracket, a rotating wheel can easily pull a pull rope, so that the situation of breakage of the pull rope is avoided; but it has many problems in the use: the second ladder stand is erected on the inner side of the upper end of the first ladder stand and is connected with the pull rope through the lower end of the transmission rope, so that the whole second ladder stand is pulled to move upwards, in the pulling process, the outer end of the second ladder stand is poor in fixity when sliding relative to the first ladder stand, and the outer end of the second ladder stand and the inner side of the first ladder stand are easy to rub, so that the second ladder stand is relatively blocked when being pulled to be lifted, the second ladder stand and the first ladder stand are easy to abrade after being used for a long time, the positions of the transmission rope and the pull rope are offset, and meanwhile, when the pull rope and the transmission rope are lifted by the stretching ladder stand, the transmission rope and the pull rope are long in length, so that the phenomenon of rope head winding is easy to occur at the stretching position, and the integral use is influenced; therefore, it is highly desirable to design a novel safety fire ladder by those skilled in the art.
Disclosure of Invention
The supporting clamping groove seat can limit the second ladder stand, the second ladder stand does not deviate when moving upwards in the supporting clamping groove seat, so that the outer end of the second ladder stand and the inner side of the first ladder stand do not generate friction, the second ladder stand can move upwards more smoothly through the anti-blocking pulley, and the phenomenon of blocking is avoided; antiwind cover seat can play spacing effect for stay cord and driving rope can slide in appropriate within range through every part of kicking the spacing formula antiwind subassembly of support side, effectively avoid stay cord and driving rope to take place winding phenomenon, thereby guarantee the safe fire ladder of the whole stability of using of fire ladder.
In order to solve the problems, the invention provides a safety fire ladder, which comprises a main fixed support, a first ladder frame arranged on the upper side of the inner end of the main fixed support, a second ladder frame arranged on the upper side of the inner end of the first ladder frame, a kicking support and a support rod, wherein the main fixed support is connected with the support rod through an adjusting rotating mechanism, the kicking support is respectively and fixedly arranged on the main fixed support, the first ladder frame and the second ladder frame, the main fixed support and the first ladder frame move up and down through a stretching type lifting mechanism, the kicking support is of an inclined structure, the inclined angle between the kicking support and the horizontal plane is 15-20 degrees, the outer surface of one end of the kicking support is provided with an anti-skidding thread part, the other end surface of the kicking support is fixedly provided with a limiting type anti-winding component, and a pulling rope and a rope of a transmission type lifting mechanism both penetrate through the anti-winding component and extend towards the two ends, the side end of the first ladder stand is fixedly provided with an anti-clamping type supporting and guiding mechanism, the second ladder stand is sleeved in a clamping groove of the anti-clamping type supporting and guiding mechanism, and the second ladder stand is in horizontal pushing movement in the anti-clamping type supporting and guiding mechanism.
Preferably, the anti-jamming type supporting and guiding mechanism comprises a supporting clamping groove seat, an anti-jamming pulley, a pin shaft and a shaft sleeve, the supporting clamping groove seat is fixed at the side end of the first ladder frame through a bolt, the shaft groove is formed in the supporting clamping groove seat and the first ladder frame, the pin shaft penetrates through a connecting hole in the anti-jamming pulley and extends into the shaft groove from two ends of the pin shaft, the shaft sleeve is sleeved at two ends of the pin shaft, the anti-jamming pulley is arranged at the bottom of the inner end of the supporting clamping groove seat, and the second ladder frame is sleeved at the upper end of the inner side of the supporting clamping groove seat.
Preferably, the bottom of the second ladder stand is provided with a sliding groove, and the upper end of the anti-blocking pulley is arranged in the sliding groove.
Preferably, spacing formula antiwind subassembly includes antiwind cover seat and lubricant film, antiwind cover seat is the cavity formula structure, spacing fluting has been seted up at antiwind cover seat both ends, tensile formula elevating system's stay cord and driving rope are worn out by the spacing fluting that penetrates different antiwind cover seat one end respectively, the spacing fluting of the rethread other end, antiwind cover seat cavity inner is equipped with the lubricant film.
Preferably, tensile formula elevating system includes stay cord, driving rope, steel wire skidding group and swiveling wheel, driving rope one end is equipped with the steel wire skidding group, the driving rope lower extreme is connected with the stay cord, it is equipped with the swiveling wheel on the support to kick, swiveling wheel one end is connected with the stay cord transmission.
Preferably, rollers are mounted on the inner side of the front end of the second ladder frame, and synchronous roller shafts are sleeved among the rollers.
Preferably, a floral tube is fixedly installed on the inner side of the rear end of the second ladder frame.
Preferably, the lubricating layer is a lithium-based grease.
Preferably, the inner arm of the side plate of the first ladder stand is provided with a connecting hook mechanism, and the connecting hook mechanism is connected with the second ladder stand through a fixed bracket.
Adopt above-mentioned structure, its beneficial effect lies in:
the invention discloses a ladder stand, which is characterized in that an anti-blocking type supporting and guiding mechanism is fixedly arranged at the side end of a first ladder stand, a second ladder stand is sleeved in a clamping groove of the anti-blocking type supporting and guiding mechanism, the second ladder stand moves in a horizontal pushing manner in the anti-blocking type supporting and guiding mechanism, the anti-blocking type supporting and guiding mechanism comprises a supporting clamping groove seat, an anti-blocking pulley, a pin shaft and a shaft sleeve, the supporting clamping groove seat is fixed at the side end of the first ladder stand through a bolt, the second ladder stand is sleeved at the upper end of the inner side of the supporting clamping groove seat, the supporting clamping groove seat can limit the second ladder stand, the outer end of the second ladder stand and the inner side of the first ladder stand can not generate friction by moving the second ladder stand upwards in the supporting clamping groove seat, the pin shaft sleeve is sleeved at the two ends of the pin shaft sleeve, the supporting clamping groove seat and the first ladder stand are provided with shaft grooves, the pin shaft sleeve passes through a connecting hole on the anti-blocking pulley and extends to the two ends into the shaft grooves, support the inner bottom of draw-in groove seat and be equipped with the anti-sticking pulley, the spout has been seted up to second cat ladder frame bottom, in the spout was located to anti-sticking pulley upper end, can make more smooth and easy when second cat ladder frame upward movement through the anti-sticking pulley, the phenomenon that the card can not appear pausing to further guarantee the stability of safe fire ladder whole use, strive for more golden time for fire control and save life in charge.
The kicking support is of an inclined structure, the inclined downward included angle between the kicking support and the horizontal plane is 15-20 degrees, through multiple effective tests and designs, the arrangement of the angle and the structure enables a user to be more stable in acting point under the climbing foot, the outer surface of the kicking support is provided with the anti-skid thread part, the anti-skid thread part can further improve the overall safety of the safety fire ladder, and meanwhile, the anti-skid thread part can enable the connection clamping hook mechanism to be more tightly attached when being clamped with the ladder stand.
The other end face of the kick support is fixedly provided with a limiting type anti-winding assembly, a pull rope and a transmission rope of the stretching type lifting mechanism penetrate through the anti-winding assembly and extend towards two ends, the limiting type anti-winding assembly comprises an anti-winding sleeve seat and a lubricating layer, the anti-winding sleeve seat is of a hollow structure, limiting open grooves are formed in two ends of the anti-winding sleeve seat, the pull rope and the transmission rope of the stretching type lifting mechanism respectively penetrate through the limiting open grooves in one end of different anti-winding sleeve seats and penetrate out of the limiting open grooves in the other end of the anti-winding sleeve seat, the anti-winding sleeve seat can play a limiting role, the pull rope and the transmission rope can slide in a proper range through the limiting type anti-winding assembly at the side end of each kick support, the phenomenon that the pull rope and the transmission rope are wound is effectively avoided, and accordingly the overall use stability of the fire ladder is guaranteed; the inner of antiwind cover seat cavity is equipped with the lubricant film, the lubricant film is lithium-based lubricating grease, and lithium-based lubricating grease is lubricated effectual, can greatly reduced rope body and antiwind cover seat wear to each other, the life of extension rope.
Drawings
Fig. 1 is a schematic structural view of the safety fire ladder of the present invention.
Fig. 2 is a side view of the safety fire ladder of the present invention.
Fig. 3 is a schematic structural view of the kicking bracket.
Fig. 4 is a schematic structural view of another view angle of the kicking bracket.
Fig. 5 is a schematic structural view of the anti-jamming support guide mechanism.
In the figure: 1-main fixed support, 2-first ladder frame, 3-second ladder frame, 301-chute, 4-pedal support, 5-stay bar, 6-anti-blocking support guide mechanism, 601-support slot seat, 602-anti-blocking pulley, 603-pin shaft, 604-shaft sleeve, 7-stretching type lifting mechanism, 701-pull rope, 702-driving rope, 703-steel wire pulley group, 704-rotating wheel, 8-anti-sliding threaded part, 9-limiting type anti-winding assembly, 901-anti-winding sleeve seat, 902-lubricating layer, 903-limiting slotting, 10-adjusting rotating mechanism, 11-roller, 12-synchronous roller shaft, 13-floral tube, 14-engagement hook mechanism and 15-fixed support.
Detailed Description
The invention is further explained below with reference to the figures and examples.
As shown in fig. 1, 2 and 3, a safety fire ladder comprises a main fixing support 1, a first ladder frame 2 arranged on the upper side of the inner end of the main fixing support, and a second ladder frame 3, a kicking support 4 and a stay bar 5 arranged on the upper side of the inner end of the first ladder frame, wherein the main fixing support 1 is connected with the stay bar 5 through an adjusting rotating mechanism 10, the kicking support 4 is respectively fixed on the main fixing support 1, the first ladder frame 2 and the second ladder frame 3, the main fixing support 1 and the first ladder frame 2 move up and down through a stretching type lifting mechanism 7, the kicking support 4 is of an inclined structure, the included angle of the kicking support 4 inclined downwards to the horizontal plane is 15-20 degrees, the outer surface of one end of the kicking support 4 is provided with an anti-skid thread part 8, so that a user is firmer at the lower force point of a climbing foot, and the anti-skid thread part 8 can further improve the overall safety of the safety fire ladder, meanwhile, the anti-skid thread part can enable the connecting clamping hook mechanism 14 to be attached more tightly when being clamped with the ladder stand; a limiting anti-winding assembly 9 is fixedly arranged on the other end face of the kicking support 4, a pull rope and a transmission rope of the stretching type lifting mechanism 7 penetrate through the anti-winding assembly 9 and extend towards two ends, an anti-clamping type supporting guide mechanism 6 is fixedly arranged at the side end of the first ladder frame 2, the second ladder frame 3 is sleeved in a clamping groove of the anti-clamping type supporting guide mechanism 6, and the second ladder frame 3 moves in a flat-pushing mode in the anti-clamping type supporting guide mechanism 6;
the stretching type lifting mechanism 7 comprises a pull rope 701, a transmission rope 702, a steel wire pulley set 703 and a rotating wheel 704, wherein the steel wire pulley set 703 is arranged at one end of the transmission rope 702, the lower end of the transmission rope 702 is connected with the pull rope 701, the rotating wheel 704 is arranged on the pedal bracket 4, and one end of the rotating wheel 704 is in transmission connection with the pull rope 701; the inner side of the front end of the second ladder climbing frame 3 is provided with rollers 11, and synchronous roller shafts 12 are sleeved among the rollers 11; a floral tube 13 is fixedly arranged on the inner side of the rear end of the second ladder frame 3; the inner arm of the side plate of the first ladder frame 2 is provided with a connecting hook mechanism 14, and the connecting hook mechanism 14 is connected with the second ladder frame 2 through a fixed bracket 15;
as shown in fig. 4, the limiting type anti-winding assembly 9 includes an anti-winding sleeve seat 901 and a lubricating layer 902, the anti-winding sleeve seat 901 is a hollow structure, the two ends of the anti-winding sleeve seat 901 are provided with limiting slots 903, the pull rope and the transmission rope of the stretching type lifting mechanism 7 respectively penetrate through the limiting slots 903 at one end of the different anti-winding sleeve seats 901 and then penetrate out through the limiting slots 903 at the other end, the anti-winding sleeve seat 901 can play a role in limiting, so that the pull rope and the transmission rope can slide in a proper range through the part of the limiting type anti-winding assembly at the side end of each kicking support, the phenomenon that the pull rope and the transmission rope are wound is effectively avoided, and thus the stability of the overall use of the fire ladder is ensured, the lubricating layer 902 is arranged at the hollow inner end of the anti-winding sleeve seat 901, and the lubricating layer is lithium-based lubricating grease; the lithium-based lubricating grease has good lubricating effect, can greatly reduce the abrasion between the rope body and the anti-winding sleeve seat, and prolongs the service life of the pull rope and the transmission rope;
as shown in fig. 5, the anti-jamming type supporting and guiding mechanism 6 comprises a supporting slot seat 601, an anti-jamming pulley 602, a pin shaft 603 and a shaft sleeve 604, the supporting slot seat 601 is fixed at the side end of the first ladder frame 2 by bolts, the supporting slot seat 601 and the first ladder frame 2 are provided with shaft grooves, the pin shaft 603 passes through a connecting hole on the anti-jamming pulley 602 and extends into the shaft grooves towards both ends, the shaft sleeve 604 is sleeved at both ends of the pin shaft 603, the anti-jamming pulley 602 is arranged at the bottom of the inner end of the supporting slot seat 601, the second ladder frame 3 is sleeved at the upper end of the inner side of the supporting slot seat 601, the supporting slot seat 601 can limit the second ladder frame 3, the outer end of the second ladder frame 3 does not deviate when moving upwards in the supporting slot seat 601, so that the second ladder frame does not generate friction with the inner side of the first ladder frame, the bottom of the second ladder frame 3 is provided with a sliding groove 104, in the spout 104 was located to anti-sticking pulley 602 upper end, can make the second ladder frame 3 more smooth and easy when upwards moving through anti-sticking pulley 602, the phenomenon that the card is pause can not appear.
In order to facilitate understanding of the above-described embodiments of the present invention, the following detailed description will be given of the above-described embodiments of the present invention in a specific manner of use.
The specific working process is as follows: when the device is installed, a pull rope and a transmission rope of the stretching type lifting mechanism 7 are respectively penetrated into a limiting slot 903 at one end of different anti-winding sleeve seats 901 and then penetrated out through the limiting slot 903 at the other end, so that the pull rope and the transmission rope are prevented from being wound, one end of the transmission rope 702 is wound on the steel wire pulley set 703, one end of the rotating wheel 704 and the pull rope 701 are wound on the rotating wheel 704, and the other end of the transmission rope 702 is connected with the other end of the pull rope 701, so that the installation is completed;
when the device is used, the stay bar 5 is pulled open, the rotating mechanism 10 is adjusted to rotate along with the stay bar 3, the conical support sharp corner is inserted into the ground and fixed, the stay bar 3 and the main fixed support 101 keep a cross balance state, a person pulls the pull rope 701 of the stretching type lifting mechanism 7 after stabilization, the pull rope 701 drives the transmission rope 702 to drive the first ladder frame 2 and the second ladder frame 3 to move upwards, the linking and clamping mechanism 14 is popped out through the kicking support 4 and gradually rises outwards, when the first ladder frame 2 reaches the top end, the second ladder frame 3 moves upwards in the support and clamping groove seat 601 of the anti-clamping type support and guide mechanism 6, the anti-clamping pulley 602 abuts against the sliding groove 104 on the inner side of the second ladder frame 103, the second ladder frame 103 smoothly moves upwards, the bottom end of the second ladder frame 103 is butted with the top end of the first ladder frame 102, the linking and clamping hook machine 136 is installed on the anti-sliding thread part 8 of the kicking support 4 of the first ladder frame 2, the linking hook mechanism 14 on the second ladder frame 3 just in time blocks the kicking support 4 of the first ladder frame 2, the kicking support 4 on the main fixed support 1 of the fire fighter climbs upwards, and then continues to climb upwards along the kicking support 4 of the first ladder frame 2 and the second ladder frame 3 for rescue.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features of the invention described herein.
Claims (8)
1. The utility model provides a safe fire ladder, includes main fixed bolster (1), locates first ladder frame (2) of the inner upside of main fixed bolster and second ladder frame (3), the pedal support (4) and vaulting pole (5) of locating the inner upside of first ladder frame, be connected with vaulting pole (5) through adjustment rotary mechanism (10) on main fixed bolster (1), pedal support (4) and fix respectively and locate main fixed bolster (1), first ladder frame (2) and second ladder frame (3) on, be up-and-down motion, its characterized in that through tensile formula elevating system (7) between main fixed bolster (1) and first ladder frame (2): the utility model discloses a ladder assembly, including first ladder frame (2), first ladder frame (3), it supports guiding mechanism (6) and second ladder frame (3), it is characterized in that kicking support (4) is the tilting structure, kicking support (4) is 15-20 with horizontal plane decurrent contained angle, the one end surface of kicking support (4) is equipped with anti-skidding screw thread portion (8), it is fixed to be equipped with spacing formula antiwind subassembly (9) to kick another terminal surface of support (4), stay cord and the driving rope of tensile elevating system (7) all pass in antiwind subassembly (9) and extend to both ends, first ladder frame (2) side is fixed to be installed and is prevented card formula support guiding mechanism (6), second ladder frame (3) cup joint in preventing card formula support guiding mechanism (6) draw-in groove, second ladder frame (3) are the horizontal sliding motion in preventing card formula support guiding mechanism (6).
2. A safety fire ladder as claimed in claim 1, wherein: anti-sticking formula supports guiding mechanism (6) including supporting draw-in groove seat (601), anti-sticking pulley (602), round pin axle (603) and axle sleeve (604), support draw-in groove seat (601) and pass through bolt fastening in first ladder frame (2) side, the axle sleeve has been seted up on support draw-in groove seat (601) and first ladder frame (2), round pin axle (603) pass the hole that connects on anti-sticking pulley (602) and extend to the axle inslot to both ends, axle sleeve (604) cup joint in round pin axle (603) both ends, support draw-in groove seat (601) inner bottom and be equipped with anti-sticking pulley (602), second ladder frame (3) cup joint in supporting draw-in groove seat (601) inboard upper end.
3. A safety fire ladder as claimed in claim 2, wherein: spout (301) have been seted up to second ladder frame (3) bottom, spout (301) are located to anti-sticking pulley (602) upper end.
4. A safety fire ladder as claimed in claim 1, wherein: spacing formula antiwind subassembly (9) are including antiwind cover seat (901) and lubricant film (902), antiwind cover seat (901) are the hollow structure, spacing fluting (903) have been seted up at antiwind cover seat (901) both ends, stay cord and the driving rope of tensile formula elevating system (7) are worn out by spacing fluting (903) that penetrates different antiwind cover seat (901) one end respectively, spacing fluting (903) of the rethread other end, antiwind cover seat (901) cavity inner is equipped with lubricant film (902).
5. A safety fire ladder as claimed in claim 1, wherein: tensile formula elevating system (7) are including stay cord (701), driving rope (702), steel wire pulley group (703) and swiveling wheel (704), driving rope (702) one end is equipped with steel wire pulley group (703), driving rope (702) lower extreme is connected with stay cord (701), it is equipped with swiveling wheel (704) on support (4) to kick, swiveling wheel (704) one end is connected with stay cord (701) transmission.
6. A safety fire ladder as claimed in claim 1, wherein: the inner side of the front end of the second ladder climbing frame (3) is provided with rollers (11), and synchronous roller shafts (12) are sleeved among the rollers (11).
7. A safety fire ladder as claimed in claim 6, wherein: and a floral tube (13) is fixedly arranged on the inner side of the rear end of the second ladder frame (3).
8. A safety fire ladder as claimed in claim 4, wherein: the lubricating layer (902) is lithium grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210365896.8A CN114658345A (en) | 2022-04-08 | 2022-04-08 | Safety fire ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210365896.8A CN114658345A (en) | 2022-04-08 | 2022-04-08 | Safety fire ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114658345A true CN114658345A (en) | 2022-06-24 |
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ID=82034439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210365896.8A Pending CN114658345A (en) | 2022-04-08 | 2022-04-08 | Safety fire ladder |
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| Country | Link |
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| CN (1) | CN114658345A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040508A (en) * | 2022-12-02 | 2023-05-02 | 河南骏通车辆有限公司 | Rope extension structure, telescopic boom crane and hoisting method thereof |
-
2022
- 2022-04-08 CN CN202210365896.8A patent/CN114658345A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040508A (en) * | 2022-12-02 | 2023-05-02 | 河南骏通车辆有限公司 | Rope extension structure, telescopic boom crane and hoisting method thereof |
| CN116040508B (en) * | 2022-12-02 | 2023-11-03 | 河南骏通车辆有限公司 | Rope extension structure, telescopic boom crane and hoisting method thereof |
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