CN109331350B - Anchor point fixing device for rescue, erection method and high-rise rescue method - Google Patents
Anchor point fixing device for rescue, erection method and high-rise rescue method Download PDFInfo
- Publication number
- CN109331350B CN109331350B CN201811416631.6A CN201811416631A CN109331350B CN 109331350 B CN109331350 B CN 109331350B CN 201811416631 A CN201811416631 A CN 201811416631A CN 109331350 B CN109331350 B CN 109331350B
- Authority
- CN
- China
- Prior art keywords
- rod
- horizontal arm
- pulley
- rescue
- anchor point
- 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
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000009194 climbing Effects 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims 2
- 238000010304 firing Methods 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention provides an anchor point fixing device for rescue and relief work, an erection method and a high-rise rescue and relief work, which comprise a lifting main rod, a horizontal arm rod and a supporting rod, wherein the horizontal arm rod is respectively and slidably connected with the lifting main rod and the supporting rod, the lifting main rod and the supporting rod are telescopic, the device also comprises a diagonal rope, one end of the diagonal rope is connected with one end of the horizontal arm rod, the other end of the diagonal rope penetrates through the upper end of the supporting rod to be connected with the other end of the horizontal arm rod, one end of the horizontal arm rod is provided with a pulley, and the lower part of the supporting rod is provided with a pulley. The erection method comprises connecting a horizontal arm rod and a lifting main rod, so that two ends of the horizontal arm rod are propped against the top surface and the bottom surface of a building; the length of the supporting rod is adjusted and locked; the support rod is connected with the horizontal arm rod and locked; adjusting the horizontal arm lever to enable the horizontal arm lever to be horizontal and locked; and connecting the inclined pull rope with two ends of the horizontal arm rod and pre-tightening the inclined pull rope. The anchor point fixing device is constructed without damaging the structure of a building, is suitable for buildings with different internal structures, has light dead weight, is quickly constructed, and has strong structural stability and large bearing capacity.
Description
Technical Field
The invention belongs to the technical field of auxiliary equipment for rescue, and particularly relates to an anchor point fixing device for rescue, an erection method and a high-rise rescue method.
Background
In recent years, the speed of high-rise buildings in China is increased quickly, but high-rise fire and accidents occur at the same time, unlike the common middle-low-rise residential buildings, high-rise and super-high-rise building fire-fighting water cannons cannot effectively extinguish fire due to the high floor, laying of water bands in the building is time-consuming and labor-consuming, the optimal fire-extinguishing time is often delayed, and meanwhile, the transfer and escape of injured people and emergency situations are difficult. In this regard, fire brigades often employ external walls to lay climbing ropes along which water belts, materials, and even wounded persons are transported by use of climbing rope robots. By adopting the method, the anchor point fixing of the climbing rope of the floor becomes critical.
The existing anchor point fixing device is heavy and generally needs to drill holes and solidify the building to damage the structure of the building; the anchor point is set for too long, and the fire fighting time is delayed; meanwhile, the anchor point fixing device has poor structural stability and small bearing capacity, and is easy to shift when conveying water belts and materials, so that potential safety hazards are caused; and the internal structure of the present building is various, and some buildings are that the landing window is not provided with a windowsill, and some anchor fixing devices need to be clamped and fixed on the windowsill, so that the existing anchor fixing devices cannot be suitable for the buildings with different structures. In addition, when carrying anchor point fixing device and ascending a building, the firefighter has strict requirements on the weight of the device, namely, the individual soldier can not carry more than 20 kg, so that the weight of the existing anchor point fixing device does not meet the regulations.
Disclosure of Invention
The invention aims to solve the problem of providing an anchor point fixing device for rescue, an erection method and a high-rise rescue method, wherein the anchor point fixing device is constructed without damaging the structure of a building, is applicable to buildings with different internal structures, and has the advantages of light weight, short construction time, strong stability and large bearing capacity.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an anchor fixing device for rescue and relief work, including lift mobile jib, horizontal arm pole and bracing piece, horizontal arm pole and lift mobile jib sliding connection, bracing piece and horizontal arm pole sliding connection, lift mobile jib and bracing piece are all scalable, still include to draw a cable, draw one end of rope to one side to be connected with the one end of horizontal arm pole, the other end passes the upper end of bracing piece and is connected with the other end of horizontal arm pole, the one end that the lift mobile jib was kept away from to the horizontal arm pole is equipped with first pulley, the lower part of bracing piece is equipped with the second pulley.
In the technical scheme, the horizontal arm rod is characterized by preferably further comprising a third pulley, wherein the third pulley is arranged between the first pulley and the support rod on the horizontal arm rod.
In the technical scheme, preferably, the second pulley is arranged on the supporting rod in a sliding way through the first sliding sleeve locking device, and the third pulley is arranged on the horizontal arm rod in a sliding way through the second sliding sleeve locking device.
In the technical scheme, preferably, the included angle between the connecting line of the second pulley and the third pulley and the supporting rod is 10-20 degrees.
In the technical scheme, the climbing rope is preferably further provided with a climbing rope fixing point, and the included angle between the connecting line of the climbing rope fixing point and the second pulley and the supporting rod is 45-60 degrees.
In the technical scheme, preferably, the included angle between the inclined pull rope and the two ends of the horizontal arm rod is 40-60 degrees.
In the technical scheme, preferably, the lifting main rod comprises an outer tube, a tooth-shaped inner main rod and a ratchet locking device, wherein the outer tube is slidably sleeved outside the tooth-shaped inner main rod and can be locked on the tooth-shaped inner main rod through the ratchet locking device, and preferably, the outer tube is locked on the tooth-shaped inner main rod in a one-way manner through the ratchet locking device.
In the technical scheme, preferably, the lifting main rod further comprises a pedal hydraulic lifting device, and the pedal hydraulic lifting device is arranged at the bottom of the tooth-shaped inner main rod.
In the technical scheme, preferably, the bottom and the top of the lifting main rod are also respectively provided with an anti-slip bottom pad and an anti-slip top pad.
In the technical scheme, preferably, the anti-skid base pad is provided with a vertical calibration lamp, and the anti-skid top pad is provided with a calibration point.
In the technical scheme, preferably, the horizontal arm rod is connected with the lifting main rod through the third sliding sleeve locking device, the horizontal arm rod can slide along the lifting main rod, the supporting rod is connected with the horizontal arm rod through the fourth sliding sleeve locking device, and the supporting rod can slide along the horizontal arm rod.
In the technical scheme, preferably, the supporting rod comprises a triangular bracket and an adjusting supporting rod, the triangular bracket is sleeved outside the adjusting supporting rod, through holes are formed in the triangular bracket and the adjusting supporting rod, and the triangular bracket and the adjusting supporting rod can be adjusted in height and are fixed through pins.
Another object of the present invention is to provide a method for erecting the above anchor point fixing device, comprising:
the method comprises the steps of firstly, connecting a horizontal arm rod with a lifting main rod, adjusting the length of the lifting main rod, and propping up two ends of the lifting main rod between the top surface and the bottom surface of a building;
step two, adjusting the length of the supporting rod and locking the supporting rod;
thirdly, connecting the supporting rod with the horizontal arm rod, adjusting the position of the supporting rod and locking the supporting rod;
fourth, adjusting one end of the horizontal arm rod connected with the lifting main rod to enable the horizontal arm rod to be kept horizontal, and locking the horizontal arm rod;
and fifthly, connecting the inclined pull ropes with two ends of the horizontal arm rod and pre-tightening the horizontal arm rod.
Still another object of the present invention is to provide a method of high-rise rescue, comprising:
1) Erecting the anchor point fixing device on a floor below a building ignition point;
2) One end of the climbing rope is fixed through an anchor point fixing device, preferably, one end of the climbing rope sequentially bypasses the first pulley and the second pulley and is then fixed with a horizontal arm rod or a lifting main rod;
3) The other end of the climbing rope is discharged outside the building, and the climbing rope device is used for conveying a water belt to the floor below the ignition point of the building to extinguish fire or convey rescue materials and wounded persons.
Still another object of the present invention is to provide a method for high-rise rescue, comprising:
1) Erecting the anchor point fixing device on a floor below a building ignition point;
2) One end of the climbing rope is fixed through an anchor point fixing device, preferably, one end of the climbing rope sequentially bypasses the first pulley, the third pulley and the second pulley and is then fixed with a horizontal arm rod or a lifting main rod;
3) The other end of the climbing rope is discharged outside the building, and the climbing rope device is used for conveying a water belt to the floor below the ignition point of the building to extinguish fire or convey rescue materials and wounded persons.
The invention has the advantages and positive effects that:
this anchor fixing device for rescue and relief work:
1. the fixing only depends on the top surface and the bottom surface of the building, does not need to damage the structure of the building, does not need other structures such as windowsills, has universality, and can be suitable for buildings with different internal structures;
2. the horizontal arm rod is basically in a state of up-down component force offset by the arrangement of the inclined pull rope and the three pulleys, so that the horizontal arm rod is prevented from tilting or bending towards the load-bearing object end, the horizontal arm rod is prevented from moving upwards along the lifting main rod away from the heavy object end, the stress of the whole device is basically centered on the cross structure of the horizontal arm rod and the supporting rod, and the up-down component force offset and balance are realized, the system is enabled to be possible in light weight design, meanwhile, the system stability is higher, and the bearing capacity is larger;
3. the third pulley is arranged, so that an acting force arm between the horizontal arm rod and the supporting rod is greatly shortened, correspondingly, the whole rotation moment of the anchor point fixing device is greatly reduced, and the stability is higher;
4. the anchor point fixing device is simple in structure and rapid in construction, and a large amount of time can be saved for rescue work.
By using the high-rise rescue method, rescue workers do not need to lay water belts layer by layer along the floors of the building, do not need to climb stairs for transporting rescue materials for many times, and can transport the water belts and the rescue materials through climbing ropes and climbing rope devices thrown off from the building, so that precious rescue time is greatly saved, and the burden of the rescue workers is also greatly reduced.
Drawings
FIG. 1 is a schematic view of the structure of an anchor fixing device for rescue and relief work according to an embodiment of the present invention.
FIG. 2 is a schematic view of a one-way movement of a ratchet locking mechanism in an anchor fixing device for rescue and relief work according to an embodiment of the present invention.
FIG. 3 is a schematic view of the structure of a rocker device of a ratchet locking device in an emergency rescue anchor fixing device according to an embodiment of the present invention.
FIG. 4 is a schematic view showing a locked state of a ratchet locking device in the rescue anchor fixing device according to the embodiment of the present invention.
FIG. 5 is a schematic view of an unlocked state of a ratchet locking device in an emergency rescue anchor fixing device according to an embodiment of the present invention.
FIG. 6 is a schematic view of the construction of a rocker device of a ratchet locking device in an emergency rescue anchor fixing device according to an embodiment of the present invention.
FIG. 7 is a schematic view of the structure of a sliding sleeve locking device in the rescue anchor point fixing device according to the embodiment of the present invention.
In the figure:
1. lifting main rod 2, horizontal arm rod 3 and supporting rod
4. Cable-stayed rope 5, pulley 6 and pulley
7. Pulley 8, slide sleeve locking device 9 and slide sleeve locking device
10. Pedal hydraulic lifting device 11, outer tube 12, tooth-shaped inner main rod
13. Ratchet locking device 14, ratchet locking structure 15 and loop bar
16. Rocker device 17, control device 18, elastic device
19. Spindle 20, gear groove 21 and lock tongue
22. In-groove sliding surface 23, in-groove blocking surface 24, and tongue sliding surface
25. Climbing rope 26, inclined rope hanging ring 27 and one-way locking linkage part
28. Locking linkage 29, unlocking linkage 30, and convex slope
31. Stop block 32, elastic clamping piece 33 and anti-skid bottom pad
34. Anti-skid top pad 35, vertical calibration light 36, calibration point
37. Sliding sleeve locking device 38, sliding sleeve locking device 39 and triangular bracket
40. Adjusting strut 41, through hole 42, pulley support arm
43. Concave groove 44, nut body 45 and lock nut
46. Shrink groove
Detailed Description
The high-rise rescue is a great difficulty in the field of the current rescue, when in fire extinguishment, the fire water cannon is insufficient in range, the fire extinguishing agent cannot be effectively sprayed to a high-rise fire point, the water band is laid along the stairs in the building, the time and the labor are wasted, the best time for fire extinguishment is delayed, and during rescue, materials and wounded persons are difficult to convey and transfer. Therefore, the prior art mostly adopts climbing ropes paved from the outer wall of the high-rise building, climbing robots are used for lifting water bands and materials by using the climbing ropes, and anchor point fixing devices are required to be arranged in the high-rise building for paving the climbing ropes, so that the climbing ropes are fixed. Because the internal structure of the high-rise building is various, some buildings have windowsills, but some buildings are not provided with windowsills, the anchor point fixing device in the prior art cannot adapt to different types of buildings, so that the fixing of climbing ropes during fire fighting becomes a great difficulty. When the high-rise rescue is carried out, the high-rise rescue must contend with each other, and most anchor point fixing devices at present have complex structures, heavy weight, inconvenient carrying and building, poor environmental adaptability, long time consumption, unstable self structures, easy displacement and even collapse when heavy objects are lifted, and great potential safety hazards are caused.
In order to solve the problems, the invention provides an anchor fixing device for rescue and relief work.
Embodiments of the invention are further described below with reference to the accompanying drawings:
as shown in fig. 1, the anchor point fixing device for rescue and relief work according to this embodiment includes a lifting main rod 1, a horizontal arm rod 2 and a supporting rod 3, wherein the horizontal arm rod 2 is slidably connected with the lifting main rod 1, the supporting rod 3 is slidably connected with the horizontal arm rod 2, the lifting main rod 1 and the supporting rod 3 are telescopic, the anchor point fixing device further includes a cable-stayed rope 4, one end of the cable-stayed rope 4 is connected with one end of the horizontal arm rod 2, the other end passes through the upper end of the supporting rod 3 and is connected with the other end of the horizontal arm rod 2, one end, far away from the lifting main rod 1, of the horizontal arm rod 2 is provided with a pulley 5, and the lower part of the supporting rod 3 is provided with a pulley 6.
The fire fighter carries this anchor fixing device to the operation floor, then stand up lifting mobile jib 1 perpendicular to ground, and adjust its length, make its top to the roof, the bottom supports to the ground in the building, firmly fix lifting mobile jib 1, then confirm the height of bracing piece 3 and the position on horizontal arm 2 according to actual building condition, horizontal arm 2 on the lifting mobile jib 1 is removed, when guaranteeing bracing piece 3 and fall to the ground, keep horizontal arm 2 and lifting mobile jib 1 and bracing piece 3 perpendicular, and fixed firm, then pass bracing piece 3 top spacing groove with cable 4 to be connected with horizontal arm 2 both ends respectively with its both ends and pretension, then walk pulley 5 and pulley 6 in proper order with the one end of climbing rope, be connected with the climbing rope on the horizontal arm 2, the other end is from the window to be paid out, be used for climbing rope robot to climb along it. The lifting main rod 1 is fixed with a building main body structure, the horizontal arm rod 2 is used for hanging climbing ropes, the supporting rod 3 is used for supporting the stress end of the horizontal arm rod 2, the bearing capacity of the lifting main rod is improved, and the horizontal arm rod 2 is prevented from being broken. Because the bearing end of the horizontal arm rod 2 is stressed greatly, the horizontal arm rod is easy to bend, the inclined pull rope 4 is arranged to pull the bearing end of the horizontal arm rod 2 tightly, and the component force of upward lifting is applied to the bearing end of the horizontal arm rod 2, so that the force of the horizontal arm rod 2 bearing a heavy object can be partially counteracted, the structural stability of the horizontal arm rod 2 is improved, and the whole structure is prevented from rolling. The inclined pull rope 4 applies upward component force to one end of the horizontal arm rod 2 far away from the heavy object, so that the joint of the horizontal arm rod 2 and the lifting main rod 1 has upward movement trend, and the arrangement of the pulleys 5 and 6 enables the gravity of the heavy object to apply inclined downward force to one end of the horizontal arm rod 2 connected with the lifting main rod 1 through the climbing rope, and the downward component force can partially offset the upward component force of the inclined pull rope 4 at the position, so that the problem that one end of the horizontal arm rod 2 connected with the lifting main rod 1 slides upwards when the heavy object is hung is effectively prevented.
The anchor point fixing device is fixed only by the top and the bottom of the building, is not required to be assisted by other building structures such as windowsills, and is provided with a top surface and a bottom surface, so that the anchor point fixing device has universality, can be suitable for buildings with various internal structures, can be used for rescue workers to rescue without judging what anchor point fixing structure to use according to the structure of the building, and can be suitable for various buildings by carrying one set of devices. The horizontal arm rod basically forms a state of up-down component force offset through the arrangement of the inclined pull rope and the two pulleys, so that the horizontal arm rod is prevented from inclining or bending towards the bearing object end, the horizontal arm rod is prevented from moving upwards along the lifting main rod away from the heavy object end, and meanwhile, the rotation moment is greatly reduced, and the stability of the whole device is higher.
Preferably, a pulley 7 is also arranged, and the pulley 7 is arranged between the pulley 5 and the support rod 3 on the horizontal arm rod 2. The climbing rope 25 is wound around the pulleys 5, 7, 6 in turn and then fixed to the horizontal arm 2.
More preferably, the pulley 6 is slidably arranged on the supporting rod 3 through the sliding sleeve locking device 8, and the pulley 7 is slidably arranged on the horizontal arm rod 2 through the sliding sleeve locking device 9. After the sliding sleeve locking devices 8 and 9 are loosened, the positions of the pulleys 6 and 7 on the supporting rod 3 and the horizontal arm rod 2 can be adjusted, the winding angle of the climbing rope is changed, and the climbing rope can be adjusted to a winding angle which enables the stability of the whole device to be stronger according to practical application conditions. In particular, the pulleys 6, 7 may be arranged on the slide locking devices 8, 9 by means of pulley support arms 42. More preferably, the connecting line of the pulley 6 and the pulley 7 forms an included angle of 10-20 degrees with the supporting rod 3, and the included angle between the climbing rope and the supporting rod 3 is 45-60 degrees at one end of the lifting main rod, so that the resultant force of the supporting rod 3 and the horizontal arm rod 2 in the vertical direction is smaller, and the structural stability of the device is stronger.
Specifically, the lifting main rod 1 comprises an outer tube 11, a tooth-shaped inner main rod 12 and a ratchet locking device 13, wherein the outer tube 11 is slidably sleeved outside the tooth-shaped inner main rod 12, and is locked on the tooth-shaped inner main rod 12 in a one-way manner through the ratchet locking device 13. Specifically, as shown in fig. 3 and 6, one end of the ratchet locking device 13 is connected with the outer tube 11 through threads, the other end is provided with a ratchet locking structure 14, the ratchet locking structure 14 comprises a loop bar 15, a rocker device 16, a control device 17 and an elastic device 18, the loop bar 15 is sleeved outside the tooth-shaped inner main rod 12, the rocker device 16 is rotationally connected with the loop bar 15 through a rotating shaft 19 and moves relative to the loop bar 15 in an axial rocker manner, the tooth-shaped inner main rod 12 is axially provided with a plurality of gear grooves 20, the rocker device 16 comprises a lock tongue 21, the elastic device 18 exerts a force on the lock tongue 21, which is directed to the tooth-shaped inner main rod 12, and the elastic device 18 can be an annular tension spring, a torsion spring or other elastic objects which encircle one side of the rocker device 16 close to the lock tongue 21; the control device 17 applies force directed to the tooth-shaped inner main rod 12 to different parts of the rocker device 16, so that the lock tongue 21 and the gear groove 20 are changed among three states of locking, unidirectional locking and unlocking, and the control device 17 is a sleeve-shaped object sleeved on the outer side of the unidirectional locking device and sliding up and down along the sleeve rod 15.
More specifically, the number of rocker devices 16 is 6, and the rocker devices are uniformly arranged along the rotating shaft 19; the gear slot 20 comprises a slot inner sliding surface 22 and a slot inner blocking surface 23, the lock tongue 21 comprises a lock tongue sliding surface 24, the slot inner sliding surface 22 is matched with the lock tongue sliding surface 24, and the angle between the slot inner blocking surface 23 and the outer surface of the tooth-shaped inner main rod 12 is more than or equal to 90 degrees. The outer side surface of the rocker device 16 is provided with a one-way locking linkage part 27, a locking linkage part 28 and an unlocking linkage part 29, the locking linkage part 28 and the unlocking linkage part 29 are respectively arranged on two sides of the rotating shaft 19, the one-way locking linkage part 27 is arranged between the locking linkage part 28 and the unlocking linkage part 29, the locking linkage part 28 is close to one side of the lock tongue 21, one side of the outer surface of the rocker device 16 is provided with a convex inclined surface 30, and the unlocking linkage part 29 is arranged on the convex inclined surface 30; the outer side surface of the loop bar 15 is provided with a blocking piece 31 for preventing the control device 17 from falling off, and an elastic clamping piece 32 is arranged between the two blocking pieces 31 on the outer side surface of the loop bar 15 for distinguishing the unidirectional locking linkage part 27, the locking linkage part 28 and the unlocking linkage part 29.
As shown in fig. 2 and 6, when the control device 17 applies pressure to the one-way lock link portion 27, the one-way lock system is in a one-way lock state for making the one-way lock device perform a shift one-way movement with the tooth inner main lever 12. Because the one-way locking linkage part 27 is positioned in the middle of the rocker device 16, the rocker device 16 can drive the lock tongue 21 to rotate along the rotating shaft 19, and the elastic device 18 applies force directed to the tooth-shaped inner main rod 12 to the lock tongue 21; when the one-way locking device moves towards the direction of the sliding surface 22 in the gear groove 20, the sliding surface 24 of the lock tongue slides over the outer surface of the tooth-shaped inner main rod 12, so that the one-way locking device can move towards the direction; when the one-way locking device moves in the direction of the groove blocking surface 23 of the gear groove 20, the lock tongue 21 is caught in the nearest one of the gear grooves 20 in that direction and is acted upon by the blocking force of the groove blocking surface 23, so that the one-way locking device is locked in this direction.
As shown in fig. 4, when the control device 17 applies pressure to the locking linkage 28, the one-way locking system is in a locked state for securing the one-way locking device with the dental inner boom 12. Since the locking linkage 28 is located at the side of the rocker device 16 close to the lock tongue 21, the lock tongue 21 is inserted into the gear groove 20 and applies pressure to the gear groove 20, and the one-way locking device is fixedly connected with the tooth-shaped inner main rod 12.
As shown in fig. 5, when the control device 17 applies pressure to the unlocking linkage 29, the one-way locking system is in an unlocked state for loading, unloading or making any adjustment of the one-way locking device and the dental inner boom 12. Since the unlocking linkage 29 is located on the convex inclined surface 30 at the side far away from the lock tongue 21, the lock tongue sliding surface 24 is not in contact with the tooth-shaped inner main rod 12, and the one-way locking device moves arbitrarily in the axial direction of the tooth-shaped inner main rod 12.
After the rescue staff vertically erects the lifting main rod 1 in a building, the outer tube 11 outside the tooth-shaped inner main rod 12 is sleeved by the sliding sleeve, the lifting main rod 1 is quickly adjusted to a proper length, and the position of the outer tube 11 is quickly locked by the ratchet locking device 13, so that the first step of erecting the anchor point fixing device can be quickly completed, the time for building the anchor point fixing device is greatly shortened, precious time is striven for fire fighting, and in addition, the structural stability of the ratchet locking device 13 is very strong, and the length of the lifting main rod 1 after locking cannot be easily changed.
Preferably, the lifting main rod 1 further comprises a pedal hydraulic lifting device 10, and the pedal hydraulic lifting device 10 is arranged at the bottom of the tooth-shaped inner main rod 12. The pedal hydraulic lifting device 10 belongs to the prior art, such as a pedal hydraulic jack commonly used in the prior art, and therefore, a detailed structure of the pedal hydraulic lifting device 10 will not be described. When setting up anchor point fixing device, adjust the length of lift mobile jib 1 to suitable length through ratchet locking device 13 at first, then pedal hydraulic lifting device 10 drive hydraulic stem jack-up fast to carry out quick fine setting to the length of lift mobile jib 1, with the firm top of the both ends of lift mobile jib 1 dead between the top and the bottom of building. The length to lifting main pole 1 that use pedal hydraulic lifting device can be quick carries out the fine setting, realizes rapidly setting up anchor point fixing device's demand, simultaneously, can firmly top dead lifting main pole 1 both ends through hydraulic lifting device application of force, and anchor point fixing device's stability of putting up is stronger.
Preferably, the horizontal arm rod 2 is perpendicular to the lifting main rod 1, and the supporting rod 3 is parallel to the lifting main rod 1, so that the structure of the anchor point fixing device is more stable. Preferably, the bottom and top of the lifting main rod 1 are further provided with an anti-slip bottom pad 33 and an anti-slip top pad 34, the anti-slip bottom pad 33 is provided with a vertical calibration lamp 35, and the anti-slip top pad 34 is provided with a calibration point 36. The anti-slip bottom pad 33 and the anti-slip top pad 34 can be round sheet-shaped or square sheet-shaped metal plates, such as steel plates, stainless steel plates, iron plates and the like, anti-slip patterns can be arranged at the bottom of the anti-slip bottom pad and the top of the anti-slip top pad, and a layer of rubber anti-slip pad can also be arranged at the bottom of the anti-slip bottom pad and the top of the anti-slip top pad, so that the lifting main rod 1 can be vertical to the ground after being vertical on one hand, and the lifting main rod 1 can be prevented from sliding when lifting heavy objects on the other hand, and the structural stability of the anchor point fixing device is improved. The vertical calibration lamp 35 can be a laser calibration lamp, for example, a laser plumber or other instrument used for calibrating whether the building interior wall is vertical during decoration, the calibration lamp is placed on a calibrated object, the placement of the calibrated object is adjusted, the light emitted by the calibration lamp is aligned with a calibration point to adjust the vertical placement of the calibrated object, various laser vertical calibration lamps in the prior art can be used, a laser pen with a simple structure in the prior art can also be used for realizing, as long as a light source can send far light waves and can strike the calibration point. Set up laser source on the slipmat to set up laser calibration point on the slipmat is filled up to the sliptop, and the ray that makes laser vertical calibration lamp play just throws when filling up to laser calibration point lift mobile jib 1 and slipmat perpendicularly, when setting up the lift mobile jib, the accessible fine setting lift mobile jib makes laser vertical calibration lamp play the laser just throw to calibration point, so can guarantee that the lift mobile jib is perpendicular with ground, guarantees that anchor fixing device is put up the back stability stronger, can not empty.
Wherein, concretely, horizontal arm 2 is connected with lifting main pole 1 through sliding sleeve locking device 37, and horizontal arm 2 can slide along lifting main pole 1, and bracing piece 3 is connected with horizontal arm 2 through sliding sleeve locking device 38, and bracing piece 3 can slide along horizontal arm 2. When the height of the horizontal arm rod 2 is adjusted, the sliding sleeve locking device 37 is unscrewed firstly, the horizontal arm rod 2 is moved on the lifting main rod 1 in a sliding mode, the position of the horizontal arm rod 2 is fixed by screwing the sliding sleeve locking device 37 after the lifting main rod 1 is adjusted to a proper position, and the position of the supporting rod 3 on the horizontal arm rod 2 can be adjusted by unscrewing the sliding sleeve locking device 38, so that the supporting point of the horizontal arm rod 2 can be adjusted according to the actual fire-fighting environment condition, and the structure of the whole anchor point fixing device is more stable.
The sliding sleeve locking device in the prior art is various, for example, the sliding sleeve locking device can be a clamp fixedly connected with one end of a horizontal arm rod or a supporting rod, the clamp is sleeved on the lifting main rod or the horizontal arm rod, the clamp is clamped by tightening a nut, and the position of the horizontal arm rod or the supporting rod is fixed. Preferably, as shown in fig. 7, the sliding sleeve locking device comprises a nut main body 44 and a locking nut 45, wherein the nut main body 44 of the sliding sleeve locking device 37 is fixedly connected with the end part of the horizontal arm rod 2 and sleeved on the lifting main rod 1, the locking nut 45 is sleeved on the lifting main rod 1, the nut main body 44 is provided with conical internal threads, the locking nut main body is provided with conical external threads, and the part of the locking nut 45 provided with threads is provided with an axial shrinkage groove 46. After the lock nut 45 is unscrewed, the horizontal arm rod 2 can move up and down along the lifting main rod 1, after the horizontal arm rod moves to a proper position, the lock nut 45 is screwed down, when the lock nut 45 locks the nut main body 44, the conical head of the lock nut 45 is inwards folded by the gradually screwing force of the internal thread of the conical hole of the nut main body 44, so that the shrinkage groove 46 is clamped, the lock nut bites the lifting main rod 1, and the position of the sliding sleeve locking device on the lifting main rod is firmly fixed. Similar to the slide locking device 37, the slide locking device 38 also includes a nut body provided on the support rod 3 and a lock nut slidably fitted on the horizontal arm 2, and the locking principle is the same as that of the slide locking device 37 described above. The slide locking devices 8, 9 are also of the above-described construction. The sliding sleeve locking device is convenient and quick to lock and detach, quick in construction process, simple to operate, and capable of saving construction time of the anchor point fixing device.
Specifically, the support rod 3 comprises a tripod 39 and an adjusting support rod 40, the tripod 39 is sleeved outside the adjusting support rod 40, through holes 41 are formed in the tripod 39 and the adjusting support rod 40, and the tripod 39 and the adjusting support rod 40 can be adjusted in height and fixed through pins. After the height of the support rod 3 is determined according to the actual situation, so that the horizontal arm rod 2 is locked in a state of keeping the angle perpendicular to the lifting main rod 1 and the support rod 3 and ensuring the support rod 3 to reliably fall to the ground, the telescopic rod has various structures according to the prior art, and is not limited to the specific structure described herein. In this embodiment, the length of the support rod 3 can be adjusted by extracting or inserting the adjusting strut 40 from the tripod 39 and inserting the pin into the through holes of the two, and fixing the two, so that the structure is simple and the adjustment is rapid.
The top of the support rod 3 can be provided with a concave groove 43, one end of the cable-stayed rope 4 is connected with one end of the horizontal arm rod 2 through the cable-stayed rope hanging ring 26, and the other end of the cable-stayed rope passes through the concave groove 43 at the top of the support rod 3 and is connected with the other end of the horizontal arm rod 2 through the cable-stayed rope hanging ring. The angle between the diagonal ropes 4 and the horizontal arm is preferably 40-60. The end of the horizontal arm rod 2 connected with the lifting main rod 1 can be provided with a climbing rope lifting ring for fixing one end of a climbing rope, and the included angle between the connecting line of the climbing rope lifting ring and the pulley 6 and the supporting rod 3 is preferably 45-60 degrees.
The embodiment of the anchor fixing device for rescue and relief work: the fixing only depends on the top surface and the bottom surface of the building, does not need to damage the structure of the building, does not need other structure assistance such as windowsill and the like, has universality, and can be suitable for buildings with different internal structures; the horizontal arm rod basically forms a state of up-down component force offset through the arrangement of the inclined pull rope and the three pulleys, so that the horizontal arm rod is prevented from tilting or bending towards the load-bearing object end, the horizontal arm rod is prevented from moving upwards along the lifting main rod away from the load-bearing object end, meanwhile, the rotation moment of the whole device is reduced, the stability of the whole device is higher, and the bearing capacity is larger; the anchor point fixing device is simple in structure, light in dead weight and rapid in construction, and can save a great amount of time for rescue work and is convenient to carry.
The method for erecting the anchor point fixing device according to the embodiment includes:
the method comprises the steps of firstly, connecting a horizontal arm rod with a lifting main rod, adjusting the length of the lifting main rod, and propping up two ends of the lifting main rod between the top surface and the bottom surface of a building;
specifically, establish the sliding sleeve locking device cover on the horizontal arm pole on the lift mobile jib, then through the quick length of adjusting the lift main pole of ratchet locking device, make the both ends top of lift mobile jib to the top surface and the bottom surface of building wall, then pedal hydraulic lifting device rapidly, hydraulic rod drive application of force finely tunes the length of lift main pole, makes the mere top of both ends of lift mobile jib die at building top surface and bottom surface.
Step two, adjusting the length of the supporting rod and locking the supporting rod;
thirdly, connecting the support rod with a horizontal arm rod, adjusting the position of the support rod, and locking the support rod;
fourth, adjusting one end of the horizontal arm rod connected with the lifting main rod to enable the horizontal arm rod to be kept horizontal and locking the horizontal arm rod;
and fifthly, connecting the inclined pull ropes with two ends of the horizontal arm rod and pre-tightening the horizontal arm rod.
The method for erecting the anchor point fixing device for rescue is simple and quick in erection process, and the anchor point fixing device is short in construction time in the rescue process, so that precious time is striven for the rescue process.
The method for high-rise rescue in this embodiment includes:
1) Erecting the anchor point fixing device on a floor below a building ignition point;
2) One end of the climbing rope sequentially bypasses the first pulley, the third pulley and the second pulley and is fixedly connected with the horizontal arm rod or the lifting main rod;
3) The other end of the climbing rope is discharged outside the building, and the climbing rope device is used for conveying a water belt to the floor below the ignition point of the building to extinguish fire or convey rescue materials and wounded persons.
By using the high-rise rescue method, rescue workers do not need to lay water belts layer by layer along the floors of the building, do not need to climb stairs for transporting rescue materials for many times, and can transport the water belts and the rescue materials through climbing ropes and climbing rope devices thrown off from the building, so that precious rescue time is greatly saved, and the burden of the rescue workers is also greatly reduced.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (11)
1. An anchor fixing device for rescue and relief work, which is characterized in that: comprises a lifting main rod, a horizontal arm rod and a supporting rod, wherein the horizontal arm rod is in sliding connection with the lifting main rod, the supporting rod is in sliding connection with the horizontal arm rod, the lifting main rod and the supporting rod are telescopic, the lifting main rod further comprises a diagonal rope, one end of the diagonal rope is connected with one end of the horizontal arm rod, the other end of the diagonal rope penetrates through the upper end of the supporting rod and is connected with the other end of the horizontal arm rod, one end of the horizontal arm rod, far away from the lifting main rod, is provided with a first pulley, the lower part of the supporting rod is provided with a second pulley, the lifting main rod comprises an outer tube, a tooth-shaped inner main rod and a ratchet locking device, the outer tube is sleeved outside the tooth-shaped inner main rod in a sliding manner, the ratchet locking device is locked on the tooth-shaped inner main rod, one end of the ratchet locking device is in threaded connection with the outer tube, the other end is provided with a ratchet locking structure, the ratchet locking structure comprises a loop bar, a wane device and a control device, the loop bar is sleeved outside the tooth-shaped inner main bar, the wane device is rotationally connected with the loop bar and moves axially relative to the loop bar, the tooth-shaped inner main bar is axially provided with a gear slot, the wane device is provided with a unidirectional locking linkage part, a locking linkage part and an unlocking linkage part, the control device applies force pointing to the tooth-shaped inner main bar through the unidirectional locking linkage part, the locking linkage part and the unlocking linkage part, so that the wane device and the gear slot can be changed among three states of locking, unidirectional locking and unlocking, the ratchet locking structure further comprises a third pulley, the third pulley is arranged on the horizontal arm bar between the first pulley and the support bar, the included angle between the connecting line of the second pulley and the third pulley and the supporting rod is 10-20 degrees.
2. The rescue anchor point fixing device according to claim 1, wherein: the rope climbing device further comprises a climbing rope fixing point, wherein the included angle between the connecting line of the climbing rope fixing point and the second pulley and the supporting rod is 45-60 degrees.
3. The rescue anchor point fixing device according to claim 1 or 2, wherein: the included angle between the inclined pull rope and the two ends of the horizontal arm rod is 40-60 degrees.
4. The rescue anchor point fixing device according to claim 1, wherein: the second pulley is arranged on the supporting rod in a sliding mode through the first sliding sleeve locking device, and the third pulley is arranged on the horizontal arm rod in a sliding mode through the second sliding sleeve locking device.
5. The rescue anchor point fixing device according to claim 1, wherein: the lifting main rod further comprises a pedal hydraulic lifting device, and the pedal hydraulic lifting device is arranged at the bottom of the tooth-shaped inner main rod.
6. The rescue anchor point fixing device according to any one of claims 1 to 2 and 4 to 5, wherein: the bottom and the top of the lifting main rod are also respectively provided with an anti-slip bottom pad and an anti-slip top pad, the anti-slip bottom pad is provided with a vertical calibration lamp, and the anti-slip top pad is provided with a calibration point.
7. The rescue anchor point fixing device according to claim 6, wherein: the horizontal arm rod is connected with the lifting main rod through a third sliding sleeve locking device, the horizontal arm rod can slide along the lifting main rod, the supporting rod is connected with the horizontal arm rod through a fourth sliding sleeve locking device, and the supporting rod can slide along the horizontal arm rod.
8. The rescue anchor point fixing device according to any one of claims 1 to 2, 4 to 5 and 7, wherein: the support rod comprises a triangular bracket and an adjusting support rod, the triangular bracket is sleeved outside the adjusting support rod, through holes are formed in the triangular bracket and the adjusting support rod, and the triangular bracket and the adjusting support rod can be adjusted in height and are fixed through pins.
9. A method of installing an anchor point securing device as claimed in any one of claims 1 to 8, characterised by: comprising the following steps:
the first step, connecting the horizontal arm rod with the lifting main rod, adopting the ratchet locking structure to adjust the length of the lifting main rod and propping the two ends of the lifting main rod between the top surface and the bottom surface of a building;
step two, adjusting the length of the supporting rod and locking the supporting rod;
thirdly, connecting the supporting rod with the horizontal arm rod, adjusting the position of the supporting rod and locking the supporting rod;
fourth, adjusting one end of the horizontal arm rod connected with the lifting main rod to enable the horizontal arm rod to be kept horizontal, and locking the horizontal arm rod;
and fifthly, connecting the inclined pull ropes with two ends of the horizontal arm rod and pre-tightening the horizontal arm rod.
10. A high-rise rescue method is characterized in that: comprising the following steps:
1) Erecting an anchor point fixing device according to any one of claims 1-8 on a floor below a building ignition point;
2) One end of the climbing rope is fixed through the anchor point fixing device, sequentially bypasses the first pulley and the second pulley, and is then fixed with the horizontal arm rod or the lifting main rod;
3) And discharging the other end of the climbing rope out of the building, and conveying a water belt to a floor below the firing point of the building through the climbing rope device to extinguish the fire or convey rescue materials and wounded persons.
11. A high-rise rescue method is characterized in that: comprising the following steps:
1) -erecting an anchor point fixing device according to claim 1 or 4 on a floor below the ignition point of a building;
2) One end of the climbing rope is fixed through the anchor point fixing device, and one end of the climbing rope sequentially bypasses the first pulley, the third pulley and the second pulley and is then fixed with the horizontal arm rod or the lifting main rod;
3) And discharging the other end of the climbing rope out of the building, and conveying a water belt to a floor below the firing point of the building through the climbing rope device to extinguish the fire or convey rescue materials and wounded persons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416631.6A CN109331350B (en) | 2018-11-26 | 2018-11-26 | Anchor point fixing device for rescue, erection method and high-rise rescue method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416631.6A CN109331350B (en) | 2018-11-26 | 2018-11-26 | Anchor point fixing device for rescue, erection method and high-rise rescue method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109331350A CN109331350A (en) | 2019-02-15 |
| CN109331350B true CN109331350B (en) | 2023-12-08 |
Family
ID=65317961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416631.6A Active CN109331350B (en) | 2018-11-26 | 2018-11-26 | Anchor point fixing device for rescue, erection method and high-rise rescue method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109331350B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944541B (en) * | 2019-04-15 | 2023-10-24 | 河南省第一建筑工程集团有限责任公司 | Vertical ladder for wall construction |
| CN110281717A (en) * | 2019-07-29 | 2019-09-27 | 广西玉柴机器股份有限公司 | A kind of AGV transport vehicle traction device |
| CN110422772A (en) * | 2019-09-07 | 2019-11-08 | 莫崇规 | Climbing machine device device and method |
| CN113244541B (en) * | 2021-04-22 | 2023-10-03 | 中铁工程服务有限公司 | Ultra-high altitude fire rescue system and rescue method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392755Y (en) * | 1999-05-26 | 2000-08-23 | 陈正武 | Crane |
| CN1962395A (en) * | 2006-11-25 | 2007-05-16 | 刘春雨 | Single-beam attached frame suspended transportation device of portable suspended transportation machine |
| CN201567178U (en) * | 2009-11-18 | 2010-09-01 | 陈卫 | Simple lifting frame |
| CN202558498U (en) * | 2012-04-27 | 2012-11-28 | 无锡市小天鹅建筑机械有限公司 | Lightweight material lifting device |
| CN202559135U (en) * | 2012-04-28 | 2012-11-28 | 韩振勇 | Hanger for escape from high-rise building |
| CN103359627A (en) * | 2013-07-31 | 2013-10-23 | 周慧 | Cylinder self-balancing single arm split crane |
| CN203855328U (en) * | 2014-04-08 | 2014-10-01 | 杜少佳 | Novel hoisting machine |
| CN205603092U (en) * | 2016-04-22 | 2016-09-28 | 中铁二十四局集团浙江工程有限公司 | Portable loop wheel machine |
| CN206427951U (en) * | 2017-01-24 | 2017-08-22 | 李卿 | A kind of finishing material simple and easy hoisting equipment |
| CN206940292U (en) * | 2017-05-22 | 2018-01-30 | 中建一局钢结构工程有限公司 | A perpendicular transport hoist of small-size material for high-rise construction |
| CN207811113U (en) * | 2017-10-23 | 2018-09-04 | 惠水县凡趣创意科技有限公司 | A kind of steel structure bridge installation simple and easy hoisting device |
| CN209361691U (en) * | 2018-11-26 | 2019-09-10 | 天津滨海新区泽安泰消防技术有限公司 | A kind of rescue fixes device with anchor point |
-
2018
- 2018-11-26 CN CN201811416631.6A patent/CN109331350B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392755Y (en) * | 1999-05-26 | 2000-08-23 | 陈正武 | Crane |
| CN1962395A (en) * | 2006-11-25 | 2007-05-16 | 刘春雨 | Single-beam attached frame suspended transportation device of portable suspended transportation machine |
| CN201567178U (en) * | 2009-11-18 | 2010-09-01 | 陈卫 | Simple lifting frame |
| CN202558498U (en) * | 2012-04-27 | 2012-11-28 | 无锡市小天鹅建筑机械有限公司 | Lightweight material lifting device |
| CN202559135U (en) * | 2012-04-28 | 2012-11-28 | 韩振勇 | Hanger for escape from high-rise building |
| CN103359627A (en) * | 2013-07-31 | 2013-10-23 | 周慧 | Cylinder self-balancing single arm split crane |
| CN203855328U (en) * | 2014-04-08 | 2014-10-01 | 杜少佳 | Novel hoisting machine |
| CN205603092U (en) * | 2016-04-22 | 2016-09-28 | 中铁二十四局集团浙江工程有限公司 | Portable loop wheel machine |
| CN206427951U (en) * | 2017-01-24 | 2017-08-22 | 李卿 | A kind of finishing material simple and easy hoisting equipment |
| CN206940292U (en) * | 2017-05-22 | 2018-01-30 | 中建一局钢结构工程有限公司 | A perpendicular transport hoist of small-size material for high-rise construction |
| CN207811113U (en) * | 2017-10-23 | 2018-09-04 | 惠水县凡趣创意科技有限公司 | A kind of steel structure bridge installation simple and easy hoisting device |
| CN209361691U (en) * | 2018-11-26 | 2019-09-10 | 天津滨海新区泽安泰消防技术有限公司 | A kind of rescue fixes device with anchor point |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109331350A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109331350B (en) | Anchor point fixing device for rescue, erection method and high-rise rescue method | |
| US6401863B1 (en) | Multi-purpose portable davit anchoring system | |
| US10760338B2 (en) | Ladder securing apparatuses, ladders incorporating same and related methods | |
| US7681747B2 (en) | Crane | |
| US9284777B1 (en) | Fall restraint system for telescoping ladders | |
| US9744386B2 (en) | Self-standing fall arrest system | |
| US9273515B2 (en) | Roofing ladder with a modular angularly adjustable platform | |
| US4453619A (en) | Telescoping wall scaffold | |
| AU778637B2 (en) | Adjustable safety cable | |
| US6539676B2 (en) | Portable roof anchor | |
| US10004926B2 (en) | Remote overhead anchor | |
| CA2637130C (en) | Combined extendable pole and counterbalance system for washing the windows of a building | |
| US10196250B2 (en) | Bi-pod rescue strut system | |
| CN202355718U (en) | High-altitude escape device | |
| JP2002104776A (en) | Automobile for preventing fall from transport vehicle | |
| US20070267249A1 (en) | Roof safety system | |
| CN209361691U (en) | A kind of rescue fixes device with anchor point | |
| US20230235627A1 (en) | A coupling device for a ladder | |
| CN209361690U (en) | A kind of high level rescue with the line anchor point that climbs fixes device | |
| US6648570B2 (en) | Lifting and installing streetlight poles | |
| ES2643212T3 (en) | Safety system for a sloping roof | |
| JP4512258B2 (en) | Operating rod for parent rope tensioning and method for tensioning parent rope | |
| EP2407610A2 (en) | Scaffold and ramp | |
| JP2011084899A (en) | Simple scaffold for climbing up and down column body | |
| CN217612564U (en) | Safety belt hanging device for overhauling transformer with voltage class of 110 kilovolt or more |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |