CN101537989B - Jack of quick lift - Google Patents

Jack of quick lift Download PDF

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Publication number
CN101537989B
CN101537989B CN2009101266726A CN200910126672A CN101537989B CN 101537989 B CN101537989 B CN 101537989B CN 2009101266726 A CN2009101266726 A CN 2009101266726A CN 200910126672 A CN200910126672 A CN 200910126672A CN 101537989 B CN101537989 B CN 101537989B
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CN
China
Prior art keywords
jack
handle
gear
rod
screw rod
Prior art date
Application number
CN2009101266726A
Other languages
Chinese (zh)
Other versions
CN101537989A (en
Inventor
白天海
Original Assignee
中建工业设备安装有限公司
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
Priority to CN200810139860 priority Critical
Priority to CN200810139860.8 priority
Application filed by 中建工业设备安装有限公司 filed Critical 中建工业设备安装有限公司
Priority to CN2009101266726A priority patent/CN101537989B/en
Publication of CN101537989A publication Critical patent/CN101537989A/en
Application granted granted Critical
Publication of CN101537989B publication Critical patent/CN101537989B/en

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Abstract

The invention discloses a jack of quick lift, consisting of a driving device and a hoisting device. The jack is characterized in that: one end of a screw is provided with a quick lift device. When in use, the jack is put under an object to be jacked up; if the upper plane of the jack is comparatively far from the object to be jacked up, a flexible sleeve can be drawn quickly to drive the screw to be drawn out, and consequently, the top of the jack touches the object to be jacked up quickly; then a locating sleeve is rotated to lead an inner hole boss of a grip end to enter a circular tooth socket of the locating sleeve and be automatically locked and positioned; and subsequently a ratchet spanner is rotated to cause the screw to rotate to jack up the object. When in descending, reverse operation is conducted to cause load to be removed from the jack; and then the flexible sleeve is retracted in the grip to reset the jack. Proved by use, the jack-up operation of the jack is quick and saves time, the working efficiency is improved by more than 2 times, and the jack is safe, reliable, light in weight and convenient in use.

Description

A kind of jack that draws high fast
Technical field
The present invention relates to the used jack of lifting, a kind of jack that draws high fast.
Background technology
Jack is widely used in hoisting operation, is generally manual operations, and portable jack is because in light weight, easy to carry, and field of application is wider, but its rising or falling speed is slow, and efficient is low, and influence is used.
Summary of the invention
The purpose of this invention is to provide a kind of portable jack of ability fast lifting, service efficiency is high, saves time; For realizing above-mentioned purpose; Jack of the present invention is made up of actuating device and jack up unit, it is characterized in that: an end of screw rod is provided with quick-lift attachreactor.
A kind of jack that draws high fast is made up of actuating device and jack up unit, and an end of screw rod 19 is provided with and draws high device fast,
Wherein,
Actuating device comprises: ratchet spanner 1, and the coupling nut 15, screw rod 19;
Jack up unit comprises: joint 8, and rear linking rod 9, back pin 10, connecting plate 11, preceding pin 12, front rod 14, the coupling nut 15;
Drawing high device fast comprises: telescopic 2, boss 3, handle 4, screw rod 19;
Screw rod 19 passes with ratchet spanner 1 from centre hole, the telescopic 2 of joint 8 successively and is connected; Joint 8 is connected with an end of handle 4, and the major part of telescopic 2 is positioned in the handle 4, and the other end of telescopic 2 passes from an end of handle 4; Several ring slots 5 are arranged on the external diameter of telescopic 2; The outside journal axle of telescopic 2 is to there being some straight troughs 17, and straight trough 17 matees with the endoporus boss 3 of handle 4 ends
Brake rod 24 and depression bar 21 are installed on the handle 4, and the inclined-plane of brake rod 24 ends faces toward joint 8 directions, and from the radial hole of handle 4 ends, is inserted in the ring slot 5 of telescopic 2; Depression bar 21 levels are installed, and the center is movably arranged on the handle 4 with pin, and an end of depression bar 21 is inserted in the hole at brake rod 24 middle parts; It is held in addition and stretches out outside the handle 4; Brake rod 24 is end peace spring 23 in addition, and an end of spring 23 withstands the boss of brake rod 24, and it is held in addition and is pushed down by the screw top 22 that is positioned on the handle 4.
One end of screw rod 19 passes through from the axle center of handle 4, and tail end stretches out, and is positioned on gear 27 and screw rod 19 engagements on the handle 4; On screw rod 19 and the gear 27 ingears one end external diameter is several ring slots that are uniformly distributed with 5; Gear 27 and the U-shaped support 29 that is inserted in gear 27 both sides are installed in them on the handle 4 by gear wheel shaft, and gear 27 external diameters are the arc surfaces that concave, and match with the external diameter of screw rod 19; Also comprise pusher dog 28; The upper right that pusher dog 28 usefulness bearing pins are movably connected in the U-shaped support 29 cooperates with gear 27, and the tension spring 26 that is positioned in the pusher dog groove on the bearing pin is pushed down pusher dog 28 and gear 27 engagements, the peace brake rod 24 in the left side of U-shaped support 29; Spring 23 is pushed down retaining pawl and gear 27 engagements that brake rod 24 makes its opposite side; Under gear 27, the following peace roller bearing 30 of screw rod 19 is coupled control lever 25 above U-shaped support 29.
The gear 27 that is positioned on the handle 4 also meshes with middle gear 32, middle gear 32 and miniature gears 33 engagements, miniature gears 33 and screw rod 19 engagements.
Axial groove 36 is arranged on the handle 4, and there are several positioning grooves 34 a side compartment of terrain of axial groove 36, and radius stay 35 is arranged on the locating bush 2, and radius stay 35 can running fix in axial groove 36 and positioning groove 34.
Also comprise and drive tube 46; In an end bar portion that drives the drive spindle 47 that tube 46 stretches out; Insert the adjust bar 48 of scalable location, peace spring 13 on drive spindle 47 and adjust bar 48 is pacified link span 49 at the end that adjust bar 48 does not insert; Drive an end that flexibly connects several rear linking rods 9 on several connecting panels of tube 46 peripheries respectively; One end of the other end of rear linking rod 9 and several connecting plates 11 flexibly connects, and the other end of connecting plate 11 connects several front rods 14, and the other end of front rod 14 is connected respectively with several connecting panels of link span 49 peripheries.
Also comprise piston barrel 41, flexibly connect control lever 25 on the mounting rod 40 of piston barrel 41 ends, the middle part of control lever 25 flexibly connects the piston 38 in the piston barrel 41 by connecting rod; Piston barrel 41 is isolated and is communicated with oil outlet pipe by oil inlet by closing cap 42 with driving between the tube 46; The other end of oil inlet passes and is positioned on the piston head that drives drive spindle 47 1 ends in the tube 46, and the sealing activity is installed, and in driving tube 46, pacifies in line check valve 39 near the oil inlet of piston barrel 41; The other end of oil outlet pipe is connected on by flexible pipe and drives in the tube 46; And the fuel-displaced check valve 43 of peace on the oil outlet pipe in driving tube 46, in driving tube 46, pass the piston head peace oil pipe of drive spindle 47; The sealing activity is installed, at the end peace valve 44 of oil pipe near piston barrel 41.
Eccentric gear 20 is installed, ring slot 5 engagements on eccentric gear 20 and telescopic 2 external diameters on the handle 4.
Through using proof: jack hoisting operation speed is fast, saves time, and increases work efficiency more than 2 times, and is safe and reliable, in light weight, is easy to carry, easy to use.
Description of drawings
Fig. 1 is a kind of jack integral structure scheme drawing;
Fig. 2 is the A-A place end view of Fig. 1;
Fig. 3 is the B-B place end view of Fig. 1;
Fig. 4 is the structural representation of the telescopic of Fig. 1 by the eccentric gear braking;
Fig. 5 is the C-C place schematic top plan view of Fig. 4;
Fig. 6 is the structural representation of the telescopic of Fig. 1 by the control of plug-in type brake equipment;
Fig. 7 is that the structure that a kind of gear driven screw rod hoists is looked scheme drawing;
Fig. 8 is the D-D place schematic top plan view of Fig. 7.
Fig. 9 is that the structure that multi-stage gear speed-changing mechanism drive screw rod hoists is looked scheme drawing;
Figure 10 is the schematic top plan view of telescopic;
Figure 11 is a kind of structural representation that draws high of telescopic;
Figure 12 is the schematic top plan view of Figure 11;
Figure 13 is the horizontal jack structure scheme drawing that draws high fast of a kind of hand-hydraulic;
The contrast description of drawings, press each concrete parts in the order further explanatory drawings of Fig. 1 to Figure 13: among Fig. 1: 1, ratchet spanner, 2, telescopic,, 3, boss, 4, handle, 5, ring slot, 6, the hole; 7, screw, 8, joint, 9, rear linking rod, 10, the back pin, 11, connecting plate, 12, preceding pin, 13, spring; 14, front rod, 15, the coupling nut, 16, thrust baring, 17, straight trough, 18, screw, 19, screw rod, among Fig. 4; 20, eccentric gear, among Fig. 6,21, depression bar, 22, screw top, 23, spring, 24, brake rod, among Fig. 7; 25, control lever, 26, tension spring, 27, gear, 28, dial melon, 29, the U-shaped support, 30, roller bearing, 31, handle; Among Fig. 9,32, middle gear, 33, miniature gears, among Figure 11,34, positioning groove, 35, radius stay, 36, axial groove; Among Figure 13,37, moveable hinge, 38, piston, 39, in line check valve, 40, mounting rod, 41, piston barrel, 42, closing cap; 43, fuel-displaced check valve, 44, valve, 45, flexible pipe, 46, drive tube, 47, drive spindle, 48, adjust bar, 49, link span.
The specific embodiment
With reference to accompanying drawing; Order according to claims is described further the present invention; Fig. 1 is a kind of jack integral structure scheme drawing that draws high fast of the present invention, forms by drawing high mechanism, driver train and lifting mechanism fast, and it is characterized in that: an end of screw rod is provided with and draws high device fast.
It draws high device fast and comprises: telescopic 2, boss 3, handle 4, screw rod 19; Actuating device comprises: ratchet spanner 1, and the coupling nut 15, screw rod 19; Jack up unit comprises: joint 8, and rear linking rod 9, back pin 10, connecting plate 11, preceding pin 12, front rod 14, the coupling nut 15.
Screw rod 19 passes with ratchet spanner 1 from centre hole, the telescopic 2 of joint 8 successively and is connected, and joint 8 is connected with an end of handle 4, and the major part of telescopic 2 is positioned in the handle 4, and its other end passes from an end of handle 4.
Several ring slots 5 are arranged on the external diameter of telescopic 2, and the outside journal axle of telescopic 2 is to there being some straight troughs 17, and straight trough 17 matees with the endoporus boss 3 of handle 4 ends; Like Fig. 1, when using jack, be placed on jack below the weight; If the jack upper end, can be pulled out telescopic 2 fast and drive screw rod 19 and pull out when far away from the lifting object distance, make the top of jack touch weight soon; Then, positioning of rotating cover 2 makes the endoporus boss 3 of handle 4 ends enter into location in the ring slot 5 of locating bush 2; Rotating ratchet spanner 1 makes screw rod 19 rotate the weight that hoists again, during decline, and contrary operation; Make jack shed load, in the telescopic 2 indentation handles 4, jack is resetted again.
Among Fig. 4, be installed in the eccentric gear 20 in the straight trough 17 on the handle 4, with ring slot 5 engagements on telescopic 2 external diameters; It is a kind of structure of braking with 20 pairs of telescopics 2 of eccentric gear; During use, telescopic 2 draws high fast, moves the ratchet spanner jack that hoists then; Eccentric gear 20 meeting auto lock telescopics 2, the backwards rotation eccentric wheel gets final product when resetting.
Among Fig. 6, the inclined-plane that is installed in brake rod 24 ends on the handle 4 faces toward joint 8 directions, and from the radial hole of handle 4 ends, is inserted in the ring slot 5 of telescopic 2; Depression bar 21 levels are installed, and the center is movably arranged on the handle 4 with pin, and an end of depression bar 21 is inserted in the hole at brake rod 24 middle parts; It is held in addition and stretches out outside the handle 4; Brake rod 24 is end peace spring 23 in addition, and an end of spring 23 withstands the boss of brake rod 24, and it is held in addition and is pushed down by the screw top 22 that is positioned on the handle 4; Present embodiment is a kind of structure of plug-in type brake equipment control telescopic 2; During use, pull out telescopic 2 brake rods 24 meeting auto lock telescopics 2, depress depression bar 21 when removing locking and get final product.
Among Fig. 7, an end of screw rod 19 passes through from the axle center of handle 4, and tail end stretches out; In the straight trough 17 of handle 4, said screw rod 19 and gear 27 engagements that are positioned in the straight trough 17 are several ring slots that are uniformly distributed with 5 on screw rod 19 and the gear 27 ingears one end external diameter; Gear 27 and the U-shaped support 29 that is inserted in gear 27 both sides are installed in them on the handle 4 by gear wheel shaft, and gear 27 external diameters are the arc surfaces that concave, and match with the external diameter of screw rod 19; The upper right that pusher dog 28 usefulness bearing pins are movably connected in the U-shaped support 29 cooperates with gear 27, and the tension spring 26 that is positioned in the pusher dog groove on the bearing pin is pushed down pusher dog and gear 27 engagements, the peace brake rod 24 in the left side of U-shaped support 29; Spring 23 is pushed down retaining pawl and gear 27 engagements that brake rod 24 is its opposite sides, under gear 27, and the following peace roller bearing 30 of screw rod 19; It above U-shaped support 29 coupled control lever 25; Said structure is the device that a kind of gear driven screw rod hoists, and during use, at first pulling handle 31 makes screw rod 19 under uncharge situation, draw high jack fast to hoist; Draw when contacting load; Back and forth move control lever 25 and gear 27 is rotated and drive screw rod 19 pulling rear linking rods 9 and rise with front rod 14, when resetting, control lever 25 pulled backwards are also backed down brake rod 24 and are got final product brake off.
Among Fig. 9, the gear 27 that is positioned on the handle 4 can also mesh with middle gear 32, middle gear 32 and miniature gears 33 engagements, and miniature gears 33 is meshing with screw rod 19, and present embodiment is a kind of multi-stage gear speed-changing actuating device, can be more laborsaving when variable speed drive (VSD).
Among Figure 11, a side of handle 4 axial grooves 36 at interval several positioning grooves 34 are arranged, the radius stay 35 on the locating bush 2 can running fix in axial groove 36 and positioning groove 34; During use; Pull out locating bush 2, radius stay 35 moves in axial groove 36 simultaneously, radially rotates after locating bush 2 puts in place; Make radius stay 35 be screwed into location in the positioning groove 34, the contrary operation that resets gets final product.
Among Figure 13, it draws high device fast and comprises: drive spindle 47, adjust bar 48, radius stay 35; Actuating device comprises: operation handlebar 25, and radius stay 35, piston 38, in line check valve 39, piston barrel 41, closing cap 42, fuel-displaced check valve 43, valve 44 drives tube 46, into and out of oil pipe; Jack up unit comprises: rear linking rod 9, connecting plate 11, front rod 14, link span 49.
From driving the holding in addition in the bar portion of drive spindle 47 that tube 46 stretches out; Insert the adjust bar 48 of scalable location, peace spring 13 on drive spindle 47 and adjust bar 48 is at the other end peace link span 49 of adjust bar 48; Drive on several connecting panels of tube 46 peripheries and flexibly connect several rear linking rods 9 respectively; The other end of rear linking rod 9 and several connecting plates 11 flexibly connect, and the other end of connecting plate 11 connects several front rods 14, and the other end of front rod 14 is connected respectively with several connecting panels of link span 49 peripheries;
Flexibly connect control lever 25 on the mounting rod 40 of piston barrel 41 ends, the middle part of control lever 25 flexibly connects the piston 38 in the piston barrel 41 by connecting rod, and piston barrel 41 is communicated with oil outlet pipe by closing cap 42 isolation and by oil inlet with driving between the tube 46; The other end of oil inlet passes and is positioned on the piston head that drives drive spindle 47 1 ends in the tube 46, and the sealing activity is installed, and in driving tube 46, pacifies in line check valve 39 near the oil inlet of piston barrel 41; The other end of oil outlet pipe is connected on by flexible pipe and drives in the tube 46, and the fuel-displaced check valve 43 of peace on the oil outlet pipe in driving tube 46, in driving tube 46; Pass the piston head peace oil pipe of drive spindle 47, the sealing activity is installed, at the end peace valve 44 of oil pipe near piston barrel 41; During use,, can be pushed into adjust bar 48 fast speedes in the drive spindle 47 and also locate if leave the lifting object distance on the jack when far away; Make the top of jack touch weight very soon, saved the time, then load operation; Back and forth moving control lever 25 makes piston 38 suck oil to piston barrel 41 from the oil outlet pipe that drives in the tube; Next stroke of piston is pressed into the piston head of drive spindle 47 to oil and drives in the chamber between tube 46 the inners, drive spindle 47 is inwardly withdrawn, thereby rise jack; Open valve 44 pressure releases when resetting, the spring 13 on drive spindle 47 and the adjust bar 48 can automatically reset.
The above only is the preferred embodiments of the present invention; Their characteristic can be combined into the multiple technologies scheme easily each other; Protection scope of the present invention should comprise those of ordinary skill in the art under the prerequisite that does not exceed the principle of the invention, some modification and the improvement done.

Claims (7)

1. a jack that draws high fast is made up of actuating device and jack up unit, and an end of screw rod (19) is provided with and draws high device fast,
Wherein,
Actuating device comprises: ratchet spanner (1), coupling nut (15), screw rod (19);
Jack up unit comprises: joint (8), rear linking rod (9), back pin (10), connecting plate (11), preceding pin (12), front rod (14), coupling nut (15);
Drawing high device fast comprises: telescopic (2), boss (3), handle (4), screw rod (19);
Screw rod (19) passes with ratchet spanner (1) from centre hole, the telescopic (2) of joint (8) successively and is connected; Joint (8) is connected with an end of handle (4), and the major part of telescopic (2) is positioned in the handle (4), and the other end of telescopic (2) passes from an end of handle (4); Several ring slots (5) are arranged on the external diameter of telescopic (2); The outside journal axle of telescopic (2) is to there being some straight troughs (17), and straight trough (17) matees with the endoporus boss (3) of handle (4) end
It is characterized in that:
Brake rod (24) and depression bar (21) are installed on the handle (4); The inclined-plane of brake rod (24) end faces toward joint (8) direction, and from the radial hole of handle (4) end, is inserted in the ring slot (5) of telescopic (2), and depression bar (21) level is installed; The center is movably arranged on the handle (4) with pin; One end of depression bar (21) is inserted in the hole at brake rod (24) middle part, and it is held in addition and stretches out outside the handle (4), and brake rod (24) is end peace spring (23) in addition; One end of spring (23) withstands the boss of brake rod (24), and it is held in addition and is pushed down by the screw top (22) that is positioned on the handle (4).
2. a kind of jack that draws high fast according to claim 1; It is characterized in that: an end of screw rod (19) passes through from the axle center of handle (4), and tail end stretches out, and is positioned on gear (27) and screw rod (19) engagement on the handle (4); On screw rod (19) and gear (27) the ingear one end external diameter is several ring slots that are uniformly distributed with (5); Gear (27) and the U-shaped support (29) that is inserted in gear (27) both sides are installed in them on the handle (4) by gear wheel shaft, and gear (27) external diameter is the arc surface that concaves, and match with the external diameter of screw rod (19); Also comprise pusher dog (28); Pusher dog (28) cooperates with gear (27) with the upper right that bearing pin is movably connected in the U-shaped support (29), and the tension spring (26) that is positioned in the pusher dog groove on the bearing pin is pushed down pusher dog (28) and gear (27) engagement, the peace brake rod (24) in the left side of U-shaped support (29); Spring (23) is pushed down retaining pawl and gear (27) engagement that brake rod (24) makes its opposite side; Under gear (27), the following peace roller bearing (30) of screw rod (19) is coupled control lever (25) in the top of U-shaped support (29).
3. a kind of jack that draws high fast according to claim 2 is characterized in that: the gear (27) that is positioned on the handle (4) also meshes with middle gear (32), middle gear (32) and miniature gears (33) engagement, miniature gears (33) and screw rod (19) engagement.
4. a kind of jack that draws high fast according to claim 1; It is characterized in that: axial groove (36) is arranged on the handle (4); There are several positioning grooves (34) one side compartment of terrain of axial groove (36); Radius stay (35) is arranged on the locating bush (2), and radius stay (35) can running fix in axial groove (36) and positioning groove (34).
5. a kind of jack that draws high fast according to claim 1; It is characterized in that: also comprise driving tube (46); In an end bar portion that drives a drive spindle (47) that tin (46) stretches out; Insert the adjust bar (48) of scalable location, go up peace spring (13), pacify link span (49) at the end that adjust bar (48) does not insert at drive spindle (47) and adjust bar (48); Drive an end that flexibly connects several rear linking rods (9) on several connecting panels of tube (46) periphery respectively; One end of the other end of rear linking rod (9) and several connecting plates (11) flexibly connects, and the other end of connecting plate (11) connects several front rods (14), and the other end of front rod (14) is connected respectively with several connecting panels of link span (49) periphery.
6. according to claim 1 or 5 described a kind of jacks that draw high fast; It is characterized in that: also comprise piston barrel (41), the mounting rod (40) of piston barrel (41) end is gone up and is flexibly connected control lever (25), and the middle part of control lever (25) flexibly connects the piston (38) in the piston barrel (41) by connecting rod; Piston barrel (41) is isolated by closing cap (42) between the tube (46) and is communicated with oil outlet pipe by oil inlet with driving; The other end of oil inlet passes and is positioned on the piston head that drives drive spindle (47) one ends in the tube (46), and the sealing activity is installed, and pacifies in line check valve (39) on the oil inlet near piston barrel (41) in driving tube (46); The other end of oil outlet pipe is connected on by flexible pipe and drives in the tube (46); And peace fuel-displaced check valve (43) on the oil outlet pipe in driving tube (46), in driving tube (46), pass the piston head peace oil pipe of drive spindle (47); The sealing activity is installed, at the end peace valve (44) of oil pipe near piston barrel (41).
7. a kind of jack that draws high fast according to claim 1 is characterized in that: eccentric gear (20) is installed, ring slot (5) engagement on eccentric gear (20) and telescopic (2) external diameter on the handle (4).
CN2009101266726A 2008-09-19 2009-03-06 Jack of quick lift CN101537989B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200810139860 2008-09-19
CN200810139860.8 2008-09-19
CN2009101266726A CN101537989B (en) 2008-09-19 2009-03-06 Jack of quick lift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101266726A CN101537989B (en) 2008-09-19 2009-03-06 Jack of quick lift

Publications (2)

Publication Number Publication Date
CN101537989A CN101537989A (en) 2009-09-23
CN101537989B true CN101537989B (en) 2012-02-01

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CN108454824A (en) * 2018-04-23 2018-08-28 哈尔滨工业大学 A kind of multi-stage expansion wing mechanism
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US4702458A (en) * 1986-06-02 1987-10-27 Kendrick Billy J Quick release jack
CN2148070Y (en) * 1993-01-28 1993-12-01 马同乐 Fast lifting jack for car
CN2278683Y (en) * 1996-10-18 1998-04-15 李子阳 Quick rise-and-fall jack and its cranking bar
CN2434292Y (en) * 2000-08-23 2001-06-13 黄健 Fast lifting jack
CN2575081Y (en) * 2002-09-18 2003-09-24 台山市英利实业有限公司 Electric jack
US6910677B1 (en) * 2003-05-28 2005-06-28 Terry R. Miller Portable power jack device

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Publication number Priority date Publication date Assignee Title
US4702458A (en) * 1986-06-02 1987-10-27 Kendrick Billy J Quick release jack
CN2148070Y (en) * 1993-01-28 1993-12-01 马同乐 Fast lifting jack for car
CN2278683Y (en) * 1996-10-18 1998-04-15 李子阳 Quick rise-and-fall jack and its cranking bar
CN2434292Y (en) * 2000-08-23 2001-06-13 黄健 Fast lifting jack
CN2575081Y (en) * 2002-09-18 2003-09-24 台山市英利实业有限公司 Electric jack
US6910677B1 (en) * 2003-05-28 2005-06-28 Terry R. Miller Portable power jack device

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