PL112753B2 - Clamping type locking device for screw-type lifting mechanisms - Google Patents
Clamping type locking device for screw-type lifting mechanisms Download PDFInfo
- Publication number
- PL112753B2 PL112753B2 PL20935578A PL20935578A PL112753B2 PL 112753 B2 PL112753 B2 PL 112753B2 PL 20935578 A PL20935578 A PL 20935578A PL 20935578 A PL20935578 A PL 20935578A PL 112753 B2 PL112753 B2 PL 112753B2
- Authority
- PL
- Poland
- Prior art keywords
- nut
- screw
- locking device
- lifting mechanisms
- type
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 title description 5
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Description
Przedmiotem wynalazku jest zabezpieczajace urzadze¬ nie dociskowe do srubowych mechanizmów podnosze¬ nia, a zwlaszcza do dzwigników samochodowych.The present invention relates to a safety clamping device for screw lifting mechanisms, and in particular for automotive jacks.
Znane dotychczas srubowe mechanizmy do podnosze¬ nia nosnika ciezaru skladajace sie ze sruby nosnej i nakretki nosnej, posiadaja nakretke zabezpieczajaca z odpowiednio wmontowanym mikrowylacznikiem sygna¬ lizacyjnym zerwanie sie gwintu w nakretce nosnej.The previously known screw mechanisms for lifting the load carrier, which consist of a support bolt and a support nut, have a securing nut with an appropriately mounted microswitch for indicating a thread break in the support nut.
Taki stan urzadzenia umozliwia prace awaryjnego dzwignika w przypadku uszkodzenia sie obwodu mikro- wylacznika sygnalizujacego awarie.This condition of the device enables the operation of the emergency hoist in the event of damage to the circuit of the micro-switch signaling failures.
Urzadzenie wedlug wynalazku, polega na wykorzysta¬ niu sily tarcia pomiedzy powierzchnia sruby nosnej i nakretki zabezpieczajacej celem zablokowania mecha¬ nizmu podnoszenia w przypadku zerwania sie gwintu w nakretce nosnej.The device according to the invention consists in using the friction force between the surface of the support bolt and the lock nut to block the lifting mechanism in the event of a thread breakage in the support nut.
Zostalo to rozwiazane, wedlug wynalazku, w ten spo¬ sób, ze nakretke nosna wyposazono w dociskacz majacy postac walca utwierdzonego na dolnej plaszczyznie czola nakretki nosnej. Natomiast nakretka zabezpieczajaca w czesci obwodu majacej kontakt z dociskaczem,posiada w plaszczyznie równoleglej do czola nakretki wybranie materialu o glebokosci co najmniej polowy srednicy zewnetrznej nakretki zabezpieczajacej i szerokosci jed¬ nego skoku gwintu. W tej samej nakretce zabezpieczaja¬ cej w osi wzgledem dociskacza umieszczono srube.According to the invention, this has been solved in that the support nut is provided with a pusher having the form of a cylinder fixed on the lower face of the support nut. The securing nut, on the other hand, has a material recess in a plane parallel to the face of the nut with a depth of at least half the outer diameter of the securing nut and the width of one thread pitch. A bolt is placed in the same locking nut in the axis with respect to the clamp.
Zaleta zabezpieczenia wedlug wynalazkujestjego pro¬ sta konstrukcja i niewielki koszt wykonania.The advantage of the security feature according to the invention is its simple construction and low manufacturing cost.
Przedmiot wynalazku jest przedstawiony w przykla¬ dzie wykonania na rysunku, na którym przedstawiono zabezpieczajace urzadzenie dociskowe.The subject of the invention is illustrated in an exemplary embodiment in the drawing, which shows the safety pressure device.
Na srubie nosnej 1 osadzona jest nakretka nosna 2 wyposazona w dociskacz 3, pod którymi korzystnie w odleglosci skoku gwintu umieszczona jest nakretka zabezpieczajaca 4 z wycieciem 5 i sruba 6. Wzajemne sprzezenie nakretki nosnej 2 i nakretki zabezpieczajacej 4 zapewnia kolek 7 utwierdzony jednym koncem w nakretce nosnej 2, a drugim wpuszczony suwliwie w otwór nakretki zabezpieczajacej 4.A nose nut 2 equipped with a clamp 3 is mounted on the carrier bolt 1, under which, preferably, at the thread pitch distance, there is a securing nut 4 with a cutout 5 and a bolt 6. The interconnection of a nosepiece 2 and a securing nut 4 provides a collar 7 fixed with one end in the cap carrier 2, with the other slid into the hole of the securing nut 4.
Z chwila zerwania siegwintu nakretka nosna 2posiada natychmiast wraz z podnoszonym przedmiotem, przeno¬ szac za posrednictwem dociskacza 3 nacisk na powierzchnie nacietej czesci nakretki zabezpieczajacej.As soon as the thread breaks, the support nut 2 immediately carries, together with the lifted object, the pressure transferred by means of the clamp 3 to the surface of the cut part of the securing nut.
Zwolnienie zaciskania elementu kontrujacego nastepuje przez wkrecenie sruby 6.The clamping of the control element is released by screwing in the screw 6.
Zastrzezen patentowe 1. Zabezpieczajace urzadzenie dociskowe do srubo¬ wych mechanizmów podnoszenia, skladajacych sie ze sruby nosnej i nakretki nosnej, znamienne tym, ze nakretka nosna (2) wyposazona jest w dociskacz (3) nakretki zabezpieczajacej (4), przy czym nakretka zabez¬ pieczajaca (4) uksztaltowana jest z wycieciem materialu (5) i posiada srube(6). *. 2. Urzadzenie wedlug zastrz. 1, znamienne tym, ze pla¬ szczyzna wyciecia (5) tworzy kat z osia nakretki zabezpie¬ czajacej (4) rózny od 0°, korzystnie 90°.112 753 Prac. Poligraf. UP PRL naklad 120+18 Cena 45 zlClaim 1. Safety clamping device for bolt lifting mechanisms consisting of a support bolt and a support nut, characterized in that the support nut (2) is provided with a clamp (3) for the lock nut (4), the locking nut being the seal (4) is formed with the material cut (5) and has a screw (6). *. 2. Device according to claim The method of claim 1, characterized in that the plane of the cutout (5) forms an angle with the axis of the securing nut (4) different from 0 °, preferably 90 °. 112 753 Work. Typographer. UP PRL, circulation 120 + 18 Price PLN 45
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL20935578A PL112753B2 (en) | 1978-09-01 | 1978-09-01 | Clamping type locking device for screw-type lifting mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL20935578A PL112753B2 (en) | 1978-09-01 | 1978-09-01 | Clamping type locking device for screw-type lifting mechanisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL209355A1 PL209355A1 (en) | 1979-07-30 |
| PL112753B2 true PL112753B2 (en) | 1980-10-31 |
Family
ID=19991293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL20935578A PL112753B2 (en) | 1978-09-01 | 1978-09-01 | Clamping type locking device for screw-type lifting mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL112753B2 (en) |
-
1978
- 1978-09-01 PL PL20935578A patent/PL112753B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL209355A1 (en) | 1979-07-30 |
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