WO2023136748A1 - Dispositif d'abaissement pneumatique avec stabilisation de la descente - Google Patents

Dispositif d'abaissement pneumatique avec stabilisation de la descente Download PDF

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Publication number
WO2023136748A1
WO2023136748A1 PCT/RU2022/050225 RU2022050225W WO2023136748A1 WO 2023136748 A1 WO2023136748 A1 WO 2023136748A1 RU 2022050225 W RU2022050225 W RU 2022050225W WO 2023136748 A1 WO2023136748 A1 WO 2023136748A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
descent
load
upper nozzle
cable
Prior art date
Application number
PCT/RU2022/050225
Other languages
English (en)
Russian (ru)
Inventor
Сергей Вениаминович ЛЕБЕДЕВ
Original Assignee
Сергей Вениаминович ЛЕБЕДЕВ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Сергей Вениаминович ЛЕБЕДЕВ filed Critical Сергей Вениаминович ЛЕБЕДЕВ
Publication of WO2023136748A1 publication Critical patent/WO2023136748A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for

Definitions

  • the utility model relates to the field of cargo transportation, namely to lifting and lowering pneumatic devices, and can be used to stabilize the descent of cargo.
  • JP2001026384A (priority date 07.16.1999), foreign patent for invention No. UA15799U (priority date January 24, 2006), foreign invention patent No. US2014131140A1 (priority date November 10, 2012).
  • gas is supplied to the cylinder instead of air under pressure - for example, in the Russian patent for invention No. 94035358 (priority date 09/22/1994), a series of Russian patents for inventions No. 2012 540, 2012535, 2012538, 2040457, 2090490, 2048396, 2040456 , 2040458, 2012534, 2012536, 2012537, 2012539, 2092420 (priority date 07/23/1991).
  • the specified pneumatic descender has an extremely simple design, it does not have a system or device for forced air supply/exhaust into the pipe (for example, an air blower, a vacuum compressor, etc.), while the speed (smoothness) of lowering the load is regulated only the size of the diameter of the hole located in the lower part of the metal pipe of the device. Due to the simplification of the design of the device, a reduction in time and resource costs for its production is ensured. Also, the simplification of the design of the proposed pneumatic descender ensures its ease of operation, since there is no need for maintenance, repair, replacement of the system or device for forced air supply and exhaust into the pipe, as well as the system for regulating the speed of lowering the load.
  • a system or device for forced air supply/exhaust into the pipe for example, an air blower, a vacuum compressor, etc.
  • the prototype has a significant drawback, namely, the design of the pneumatic descender ensures the descent of the load, but this descent will be, especially if the load is heavy, quite sharp, its speed will be uneven - the load will quickly pick up speed due to the force of gravity of the earth, which is proportional to the weight of the load and the growing weight of the cable unwinding as it descends, and then abruptly drop this speed as the piston in the prototype device approaches the plug at the top of the device.
  • the overall, average speed of lowering the load depends on the diameter of the hole located in the lower part of the metal pipe of the device, but this diameter itself remains unchanged in a particular device and does not ensure uniformity of the speed of descent.
  • This utility model is to eliminate the above disadvantage of the prototype, namely, the stabilization of the speed of lowering the load with a cable, that is ensuring smooth and uniform descent of cargo using the proposed device.
  • the device provides automatic stabilization of the speed of lowering the load with a cable due to the fact that in its design in the plug in the lower part of the metal pipe of the device there are nozzles of a special design installed one into another with a rigid spring between them, axial holes of various diameters and holes on the wall of the upper nozzle, through which the air drawn in during the descent of the load with the cable passes, as a result of which the upper nozzle, overcoming the resistance of the spring, is drawn in, closing the holes in the wall, and the air begins to pass through the axial hole of a smaller diameter of the upper nozzle.
  • the pneumatic descender with descent stabilization is characterized by the fact that it consists of a metal pipe, a plug in the lower part of the metal pipe with a hole made in it for the inlet and outlet of air located inside the piston pipe connected to the load by means of a cable, passing through a hole in the plug in the upper part of the metal pipe, and rollers, characterized in that nozzles inserted one into the other are installed in the hole in the lower part of the metal pipe, each of which consists of a cylindrical body with an axial hole and a cap, and the axial hole of the upper nozzle is made with a diameter smaller than that of the lower nozzle, a rigid spring is installed between the nozzle heads, and in the wall of the housing part the upper nozzle, into which the lower nozzle is inserted, holes are made.
  • a nozzle of identical design can be inserted into the upper nozzle with a smaller diameter of the axial hole than that of the upper nozzle, and with a rigid spring between the nozzle heads.
  • a fourth nozzle of an identical design can be inserted into this nozzle with a smaller diameter of the axial hole than the previous nozzle, and with a rigid spring between the nozzle heads.
  • the claimed technical solution is illustrated by schematic representations of the general device of the proposed pneumatic descender with stabilization of the descent (figure 1) and nozzles inserted one into the other (figure 2), explaining one of the embodiments of the proposed utility model within the framework of the claimed formula, where 1 is a metal pipe, serving as a mine, 2 - load, 3 - cable, 4 - piston, 5 - rollers, 6 - plug in the upper part of the metal pipe, 7 - hole for the cable, 8 - plug in the bottom of the metal pipe, 9 - hole for entry and exit air, 10 - lower nozzle, 11 - upper nozzle, 12 - cylindrical body of the lower nozzle, 13 - cylindrical body of the upper nozzle, 14 - part of the upper nozzle body into which the lower nozzle is inserted, 15 - axial hole of the lower nozzle, 16 - axial hole upper nozzle, 17 - caps of the lower and upper nozzles, 18 - rigid spring, 19 - holes in the wall of the upper nozzle housing.
  • the pneumatic descender with trigger stabilization consists of a metal tube (1) serving as a shaft for the piston (4) located in it.
  • the piston (4) is connected to the weight (2) by means of a cable (3) which passes through the hole (7) in the plug (6) in the upper part of the metal pipe (1) and rollers (5).
  • a hole (9) is made in the plug (8) in the lower part of the metal pipe (1).
  • nozzles inserted one into the other - lower (10) and upper (I), each of which consists of a cylindrical body (12, 13) with an axial hole (15, 16) and caps (17), moreover, the axial hole (16) of the upper nozzle (11) is made with a diameter smaller than that of the axial hole (15) of the lower nozzle (10), a rigid spring (18) is installed between the nozzle caps (17), and in the wall of the body part of the upper nozzle (14) into which the lower nozzle (10) is inserted is (19). Due to the presence of a rigid spring (18), the upper nozzle remains elevated above the lower one, opening holes (19) for air to pass through.
  • the device works as follows.
  • the load (2) is attached to the cable (3), it begins to fall under the influence of its weight and pull up the piston (4).
  • the air density decreases (in other words, the air is discharged) and a low pressure area is formed, as a result of which, through the hole (9) air is drawn in from outside.
  • the air in the space between the piston (4) and the plug (6) is compressed, its density and pressure increase, as a result of which the load (2) does not fall, but gradually lowers.
  • the air drawn in during the lowering of the load with the cable through the hole (9) passes through the nozzles inserted one into the other - the lower one (10) and the upper one (11) installed in this hole as follows: first, the air passes through the axial hole of the lower nozzle (15) and exits from the holes (19) in the wall of the body part of the upper nozzle (14) into which the lower nozzle (10) is inserted.
  • the speed of lowering the load (2) can be controlled in the proposed device using the diameters of the axial holes in the nozzles (15, 16), the number, shape, diameter holes (19) in the wall of the body part of the upper nozzle (14) and the stiffness (elasticity) of the spring (18).
  • a nozzle of identical design can be inserted into the upper nozzle (11) with a smaller diameter of the axial hole (16) than that of the upper nozzle (I), and with a rigid spring between the nozzle caps.
  • one more, fourth, nozzle with an even smaller diameter of the axial hole can be inserted into this nozzle.
  • the novelty of the presented utility model lies in the fact that the combination of its essential features provides automatic stabilization of the speed of lowering the load with a cable, makes it more uniform, and the lowering is smoother.
  • the proposed pneumatic descender with trigger stabilization is currently being prepared for industrial production by the applicant.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)

Abstract

Ce modèle d'utilité se rapporte au domaine du transport de charges, concerne notamment des dispositifs pneumatiques de levage-abaissement, et peut être utilisé pour la stabilisation de la descente de charges. Le résultat technique consiste en un dispositif qui assure la stabilisation automatique de la vitesse de descente d'une charge avec un câble du fait que sa structure comprend, dans un bouchon dans la partie inférieure du tube métallique du dispositif, des buses disposées l'une dans l'autre ayant une structure spéciale avec un ressort rigide entre elles, des ouvertures axiales de diamètres différents, et des ouvertures sur la paroi de la buse supérieure par lesquelles passe l'air entraîné lors du processus de descente de charge avec un câble; ainsi, la buse supérieure, en surmontant la résistance du ressort, se rétracte en fermant les ouvertures dans la paroi, et l'air commence à s'écouler à travers l'ouverture axiale de moindre diamètre de la buse supérieure. Ainsi, l'air commence à être entraîné dans le tube métallique du dispositif de façon plus lente, et le piston s'élève également plus lentement, ce qui assure une descente plus en douceur de la charge avec le câble. Ce modèle d'utilité permet également dans son ensemble d'élargir l'éventail des solutions techniques des dispositifs pneumatiques de levage-abaissement.
PCT/RU2022/050225 2022-01-17 2022-07-19 Dispositif d'abaissement pneumatique avec stabilisation de la descente WO2023136748A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2022100868 2022-01-17
RU2022100868 2022-01-17

Publications (1)

Publication Number Publication Date
WO2023136748A1 true WO2023136748A1 (fr) 2023-07-20

Family

ID=87279550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2022/050225 WO2023136748A1 (fr) 2022-01-17 2022-07-19 Dispositif d'abaissement pneumatique avec stabilisation de la descente

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WO (1) WO2023136748A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU624878A1 (ru) * 1976-11-29 1978-09-25 Научно-Исследовательский Горнорудный Институт Нигри Шаговый подъемник
DE3943370A1 (de) * 1989-12-30 1991-07-04 Kaul Dieter Albert Pneumatischer gewichtsbalancer mit steuerblock
RU206635U1 (ru) * 2021-07-13 2021-09-20 Сергей Вениаминович Лебедев Пневматическое спусковое устройство

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU624878A1 (ru) * 1976-11-29 1978-09-25 Научно-Исследовательский Горнорудный Институт Нигри Шаговый подъемник
DE3943370A1 (de) * 1989-12-30 1991-07-04 Kaul Dieter Albert Pneumatischer gewichtsbalancer mit steuerblock
RU206635U1 (ru) * 2021-07-13 2021-09-20 Сергей Вениаминович Лебедев Пневматическое спусковое устройство

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