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
  • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
  • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
  • B66F3/25—Constructional features
  • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
• • 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
  • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
  • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
  • B66F3/25—Constructional features

Definitions

• control pin procured partly with adjusting slot, for regulation of hydraulic medium at his bypass from space below compressive piston unit into compensator and partly with circumferential slot into whose connecting stacked limiter of its movement saved in vertical tailrace canal of hydraulic medium.
• suction valve is saved in inner part of piston-head of hollow compressive piston through cylinder shaped washer, between which and front face of hollow compressive piston hydraulic chamber formed internal spring and external spring leant on peripheral hem of the washer.
• Hydraulic jack in accordance with technical solving consists of housing 1 , in whose internal field 101 connected with not illustrated compensator of hydraulic media is formed, partly not illustrated pushed piston unit and partly fixated pump body 2. Near a bottom 102 of the housing 1 is crosswise lodged pendulum shaft 3, which is taken out outside the housing 1 , where is procured or interlocked to likewise not illustrated driving element enabling elicitation of oscillatory movement, for example with tread bar. Pump body 2 in its bottom part procured with stop flat 202 created simultaneously with lengthwise axis of pendulum shaft 3.
• hollow compressive piston 4 saved in slide way which is in pump body 2 fitted by O ring seal 20 and which in static position fit with his piston-head 41 on bottom 102 of the housing 1.
• hollow compressive piston 4 sideways-created suction passages 42 connected, through bottom saddle 43 with hollow 44 in hollow compressive piston 4.
• washer 6 saved in with advantage if cylinder shape, overlaying the bottom saddle 43, in which is pushed into inner spring 16 suction valve 13 for example ball.
• Washer 6 is pushed into inner flat of the piston- head 41 of the hollow compressive piston 4, partly with internal spring 15 inserted between upper lid of the washer 6 and bearing flat 2011 of the hydraulic chamber 201 , and partly with bearing external spring 14 inserted between peripheral hem of the washer 6 and bearing flat 2011 of the hydraulic chamber 201 as well. Both springs 14 and 15 provide at the same time push into of the piston-head 41 of the hollow compressive piston 4 to the bottom 102 of the housing 1. Hydraulic chamber 201 of the pump body 2 is then with further workplaces of the hydraulic jack equipped with not illustrated elements of pushed piston unit connected through top saddle 91 of drive out valve 9 which is procured with sealing element 11 , for example ball, controlled by upper spring 17.
• Shaft 3 is in area of imbed of hollow compressive piston 4 in pump body 2 procured with circumferential slot 31 in the shape of peripheral sector with angle of hole the first sheet 311 and second sheet 312 greater than 90°.
• First sheet 311 of the circumferential slot 31 is created opposite to piston-head 41 of the hollow compressive piston 4 and second sheet 312 of the circumferential slot 31 is created opposite to stopped area 202 of the pump body 2 and is procured in joining peripheral part of the shaft 3 with skewed splayed flat 313.
• Second sheet 312 of the circumferential slot 31 is further procured with hole 314 in whose is stopped pin 5 saved in and pre-spring washer springs19 better dish shaped.
• Simultaneously stopped pin 5 zooms out from stopped area 202 of the pump body 2.
• springs 14 and 15 make hollow compressive piston 4 move to the bottom 102 of the housing 1 , whereas through suction passages 42 and suction valve
• Position of the pendulum shaft 3 in basic position means locked with counter power of the absorbing springs 19 on the one side and with the bearing external spring
• Hydraulic jack according to technical solution is possible to use everywhere where is need to achieve good parameters of up lift with simple equipment with small estate proportions.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Geology (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Actuator (AREA)
• Details Of Reciprocating Pumps (AREA)
• Reciprocating Pumps (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=31954602

Family Applications (1)

Country Status (4)

Cited By (2)

Citations (5)

• 2003
  • 2003-07-21 CZ CZ200314467U patent/CZ13947U1/cs not_active IP Right Cessation
• 2004
  • 2004-07-14 PL PL115953U patent/PL63476Y1/pl not_active IP Right Cessation
  • 2004-07-14 TR TR2006/00320U patent/TR200600320U/xx unknown
  • 2004-07-14 WO PCT/CZ2004/000037 patent/WO2005007555A1/en active Application Filing

Patent Citations (5)

Also Published As

Similar Documents

Legal Events