FIELD: machine building.
SUBSTANCE: invention relates to hoisting devices and can be used in mobile plants of various purpose. On intermediate retractable sections there are fixation locks, on the axes of housings of which there are balance beam (23) and support cover (25) spring-loaded by torsion spring (26) fixing slider (24). Each retractable section includes a fastening element. In the case of the fastening element there is a nut, on the upper and the lower sides of which springs are located. On the base and the intermediate sections there are splines, and on the inner section and the intermediate sections there are stops. On the base and the intermediate sections there are pins (21).
EFFECT: invention provides higher reliability of the telescopic mast.
1 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TELESCOPIC MAST | 2000 |
|
RU2198131C2 |
| PACKAGED TELESCOPIC MAST WITH CHAIN HOIST | 2021 |
|
RU2760061C1 |
| 0 |
|
SU141186A1 | |
| TELESCOPIC MAST | 2019 |
|
RU2717122C1 |
| TELESCOPIC MAST AND LOCK OF A SECTION THEREOF | 0 |
|
SU1626287A1 |
| ELECTROMECHANICAL LIFTING DEVICE WITH THE MECHANISM OF ACTUATION THE LIMIT SWITCH | 2016 |
|
RU2645197C1 |
| MEDICAL TABLE USABLE IN TRANSPORT VEHICLES | 2002 |
|
RU2212216C1 |
| AIR-CONTROL TELESCOPIC MAST | 1998 |
|
RU2144719C1 |
| TELESCOPIC ANTENNA MAST | 0 |
|
SU1667178A1 |
| TELESCOPIC TOWER | 0 |
|
SU1167681A1 |
