CN204529216U - A kind of hand-operated lifting platform - Google Patents
A kind of hand-operated lifting platform Download PDFInfo
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- CN204529216U CN204529216U CN201420872468.5U CN201420872468U CN204529216U CN 204529216 U CN204529216 U CN 204529216U CN 201420872468 U CN201420872468 U CN 201420872468U CN 204529216 U CN204529216 U CN 204529216U
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Abstract
The utility model discloses a kind of hand-operated lifting platform, the main points of its technical scheme include underframe, the bench board parallel with underframe is provided with above underframe, the fluid pressure drive device being provided with jacking system and driving this jacking system to rise and decline between bench board and underframe, jacking system comprises two groups of parallel upper interior bars, upper outside bar, bar and lower outside bar in lower, in lower, the lower end of bar and lower outside bar is hinged on underframe respectively, in lower bar upper end and the lower end of upper outside bar hinged, the upper end of lower outside bar and the lower end of upper interior bar hinged, in upper, the upper end of bar and upper outside bar is hinged on the bottom surface of bench board respectively, first connecting rod is provided with between two parallel lower interior bars, second connecting rod is provided with between two parallel upper outside bars, fluid pressure drive device comprises and is located at manual pump on underframe and control box, the hydraulic actuating cylinder for driving jacking system to rise is provided with between first connecting rod and second connecting rod.The utility model structure is simple, light, practical.
Description
[technical field]
The utility model relates to the instrument of the construction of a kind of electrical equipment and maintenance, especially a kind of manual hydraulic lifting table.
[background technology]
Voltage transformer is in operation due to the existence of copper loss, iron loss and generates heat, and its temperature rise directly has influence on the life-span of TRANSFORMER INSULATING MATERIAL, mechanical strength, load-carrying capacity and tenure of use.In order to reduce temperature rise, improve load-carrying capacity and voltage transformer performance driving economy, high-power transformer all has a set of perfect cooling system.Transformer cooling system is generally made up of main devices such as controller, radiator fan, submersible pumps, according to voltage transformer running temperature or load height regulates radiator fan, the throwing of submersible pump moves back, thus make the running temperature of voltage transformer control in safe range.Once transformer cooling system breaks down, gently then want under-capacity operation, heavy then threaten the safe operation of voltage transformer.At present, existing maintenance means change a large-scale radiator fan often needs 8-10 people/sky, and take time and effort, job safety risk is higher.
Owing to there is oil suction and fire-fighting system around voltage transformer, cause ground injustice, narrow space, existing maintenance means mainly rely on manpower holder, lift radiator fan, shift out voltage transformer periphery narrow space.Change a large-scale radiator fan and often need that several green grass or young crops is strong to cooperatively interact, and without technical.
The utility model is exactly make in view of the situation.
[utility model content]
The utility model object overcomes the deficiencies in the prior art, there is provided one greatly to shorten the maintenance of electrical equipment time, make the load-carrying capacity that the fast quick-recovery of voltage transformer is original, thus increase work efficiency, reduce operating risk, ensure the hand-operated lifting platform of transformer safety smooth operation.
The utility model is achieved through the following technical solutions:
A kind of hand-operated lifting platform, it is characterized in that: include underframe 1, the bench board 2 parallel with described underframe 1 is provided with above described underframe 1, be provided with between described bench board 2 and described underframe 1 jacking system and drive this jacking system rise and decline fluid pressure drive device, described jacking system comprises two groups of parallel upper interior bars 3, upper outside bar 4, bar 5 and lower outside bar 6 in lower, the lower end of described lower interior bar 5 and described lower outside bar 6 is hinged on described underframe 1 respectively, the upper end of described lower interior bar 5 and the lower end of described upper outside bar 4 hinged, the upper end of described lower outside bar 6 and the lower end of described upper interior bar 3 hinged, the upper end of described interior bar 3 and described upper outside bar 4 is hinged on the bottom surface of described bench board 2 respectively, first connecting rod 7 is provided with between two parallel lower interior bars 5, second connecting rod 8 is provided with between two parallel upper outside bars 4, described fluid pressure drive device comprises and is located at manual pump 9 on described underframe 1 and control box 10, the hydraulic actuating cylinder 11 for driving described jacking system to rise is provided with between described first connecting rod 7 and second connecting rod 8.
Hand-operated lifting platform as above, is characterized in that: the cylinder body of described hydraulic actuating cylinder 11 is hinged on described first connecting rod 7, and the piston rod of described hydraulic actuating cylinder 11 is hinged on described second connecting rod 8, and described hydraulic actuating cylinder 11 is also equipped with hydraulic lock.
Hand-operated lifting platform as above, is characterized in that: described underframe 1 surrounds rectangle by four beams, and inside two beams that described underframe 1 is parallel, be provided with interior plate 12, the lower interior bar 5 described in two is hinged on described interior plate 12 respectively by bearing pin.
Hand-operated lifting platform as above, is characterized in that: described underframe 1 is provided with two scissors and fixes ear 13, and described lower outside bar 6 is fixed ear 13 by described scissor and is hinged on described underframe 1.
Hand-operated lifting platform as above, it is characterized in that: be fixed with two pieces of stay bearing plates 16 in described bench board 2 bottom surface, upper outside bar 4 described in two is hingedly fixed on described stay bearing plate 16 respectively, also be connected with third connecting rod 14 in the upper end of two described upper outside bars 4, the upper end of described interior bar 3 is also fixed ear 13 by described scissor and is hinged on described bench board 2 bottom surface.
Hand-operated lifting platform as above, is characterized in that: described manual pump 9 is foot pump.
Hand-operated lifting platform as above, is characterized in that: be provided with four rollers 18 for walking bottom described underframe 1.
Hand-operated lifting platform as above, is characterized in that: described underframe 1 is also provided with the hand rod 19 promoting the walking of this hand-operated lifting platform.
Hand-operated lifting platform as above, is characterized in that: between two parallel upper interior bars 3, be connected with double leval jib 15.
Hand-operated lifting platform as above, it is characterized in that: this hand-operated lifting platform also comprises the bracing frame being located at bottom, support frame as described above comprises four groups of corners being hinged on described underframe 1 thus can 270 degree of supporting component 17 rotated, described supporting component 17 comprises one end and the hinged hold-down arm 1701 of described underframe 1, the other end of described hold-down arm 1701 is provided with tapped bore and is provided with studdle 1702 by this tapped bore, described studdle 1702 upper end is provided with by rotating with the driving lever 1703 regulating described studdle 1702 collapsing length, lower end is provided with and is pressed in ground supporting disk 1704.
Compared with prior art, the utility model has the following advantages:
1, jacking system of the present utility model is simple connecting rod mechanism, and risen by this jacking system by simple, a light fluid pressure drive device, easy access teams and groups are transported to work place; Can convenient pass in and out on voltage transformer periphery pebbles ground; Cooling fan setting height(from bottom) can be risen to, lower height can be dropped to and be convenient to mobile; 500kV cooling fan can be supported and have a surplus.
2, the utility model hand-operated lifting platform is moved void spaces by transformer fan to be declined fast and is overhauled, can be tapered to for 4 people * half a day the duration, greatly shorten the repair time, make the load-carrying capacity that the fast quick-recovery of voltage transformer is original, thus increase work efficiency, reduce operating risk, ensure transformer safety smooth operation.
3, the utility model hand-operated lifting platform possesses level land locomotive function, can Manual-pushing or towing, and roller adopts PU wheel, and bearing capacity is high, and resistance to abrasion is good and sturdy and durable.
4, the utility model hand-operated lifting platform is by installing hydraulic control one-way valve and flow regulating valve at hydraulic circuit, make it possible to the rising or falling speed controlling bench board, and fluid cannot reflux, and ensure that the safety of lifting.
[accompanying drawing explanation]
Fig. 1 is the utility model block diagram 1;
Fig. 2 is the utility model block diagram 2;
Fig. 3 is the utility model planar view;
Fig. 4 is the utility model hydraulic schematic diagram.
In figure: 1 is underframe; 2 is bench board; 3 is upper interior bar; 4 is upper outside bar; 5 is lower interior bar; 6 is lower outside bar; 7 is first connecting rod; 8 is second connecting rod; 9 is manual pump; 10 is control box; 11 is hydraulic actuating cylinder; 12 is interior plate; 13 fix ear for scissor; 14 is third connecting rod; 15 is double leval jib; 16 is stay bearing plate; 17 is supporting component; 1701 is hold-down arm; 1702 is studdle; 1703 is driving lever; 1704 is supporting disk; 18 is roller; 19 is hand rod; 20 is conduit under fluid pressure; 21 is fuel tank; 22 is three position four-way directional control valve; 23 is flow regulating valve; 24 is hydraulic control one-way valve.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model technical characteristic is described in further detail so that described those skilled in the art understand.
A kind of hand-operated lifting platform, include underframe 1, the bench board 2 parallel with described underframe 1 is provided with above described underframe 1, be provided with between described bench board 2 and described underframe 1 jacking system and drive this jacking system rise and decline fluid pressure drive device, described jacking system comprises two groups of parallel upper interior bars 3, upper outside bar 4, bar 5 and lower outside bar 6 in lower, the lower end of described lower interior bar 5 and described lower outside bar 6 is hinged on described underframe 1 respectively, the upper end of described lower interior bar 5 and the lower end of described upper outside bar 4 hinged, the upper end of described lower outside bar 6 and the lower end of described upper interior bar 3 hinged, the upper end of described interior bar 3 and described upper outside bar 4 is hinged on the bottom surface of described bench board 2 respectively, first connecting rod 7 is provided with between two parallel lower interior bars 5, second connecting rod 8 is provided with between two parallel upper outside bars 4, described fluid pressure drive device comprises and is located at manual pump 9 on described underframe 1 and control box 10, the hydraulic actuating cylinder 11 for driving described jacking system to rise is provided with between described first connecting rod 7 and second connecting rod 8, underframe 1 is also provided with the fuel tank 21 be connected by conduit under fluid pressure 20 with described manual pump 9, described manual pump 9 is foot pump, as shown in Figure 1.
The cylinder body of described hydraulic actuating cylinder 11 is hinged on described first connecting rod 7, the piston rod of described hydraulic actuating cylinder 11 is hinged on described second connecting rod 8, by pressurizeing to hydraulic actuating cylinder 11, promotion second connecting rod 8 upwards rises by its piston rod, described hydraulic actuating cylinder 11 is also equipped with hydraulic lock, and described hydraulic lock is made up of the hydraulic control one-way valve of two on hydraulic circuit 24.
Described underframe 1 surrounds rectangle by four beams, and inside two beams that described underframe 1 is parallel, be provided with interior plate 12, the lower interior bar 5 described in two is hinged on described interior plate 12 respectively by bearing pin.
Described underframe 1 is provided with two scissors and fixes ear 13, and described lower outside bar 6 is fixed ear 13 by described scissor and is hinged on described underframe 1.
Two pieces of stay bearing plates 16 are fixed with in described bench board 2 bottom surface, upper outside bar 4 described in two is hingedly fixed on described stay bearing plate 16 respectively, third connecting rod 14 is also connected with in the upper end of two described upper outside bars 4, the upper end of described interior bar 3 is also fixed ear 13 by described scissor and is hinged on described bench board 2 bottom surface, between two parallel upper interior bars 3, be connected with double leval jib 15, play a part steady whole jacking system.
Be provided with four rollers 18 for walking bottom described underframe 1, described roller 18 is cardan wheel, and adopt PU wheel, bearing capacity is high, and resistance to abrasion is good and sturdy and durable.
Described underframe 1 is also provided with the hand rod 19 promoting the walking of this hand-operated lifting platform.
This hand-operated lifting platform also comprises the bracing frame being located at bottom, support frame as described above comprises four groups of corners being hinged on described underframe 1 thus can 270 degree of supporting component 17 rotated, described supporting component 17 comprises one end and the hinged hold-down arm 1701 of described underframe 1, the other end of described hold-down arm 1701 is provided with tapped bore and is provided with studdle 1702 by this tapped bore, described studdle 1702 upper end is provided with by rotating with the driving lever 1703 regulating described studdle 1702 collapsing length, and lower end is provided with and is pressed in ground supporting disk 1704.Described studdle 1702 is heavy-load type screw rod, rotates driving lever 1703, make each studdle 1702 have different length below hold-down arm 1701 according to different physical features, make this bay-lift can voltage transformer periphery pebbles etc. uneven bottom surface carry out the work.
The hydraulic schematic diagram of this lifting table as shown in Figure 4, after opening three position four-way directional control valve 22, fuel tank 10 pressurizes through manual pump 9 and to enter from the cylinder body end of hydraulic actuating cylinder 11 through filter and flow regulating valve 23, piston rod stretches out promotion second connecting rod 8 and upwards rises, have between each bar because of jacking system and mutual be connected and fixed relation, whole jacking system and bench board 2 are raised, when the bench board 2 risen declines by needs, change the input end of three position four-way directional control valve 22, high speed fluid is inputted from the rod end of hydraulic actuating cylinder 11, high speed fluid promotes in piston rod retraction cylinder body, thus make whole jacking system to be declined, the flow velocity of fluid is controlled by the flow regulating valve 23 in regulating loop, thus the speed that can control jacking system rising and decline, two hydraulic control one-way valves 24 make fluid not flow backwards, for device provides safety control, all control buttons are all arranged in control box 10, simple to operation, bench board in the present embodiment can highly rise to 2 meters high from original 0.65 meter.
During work, the hand-operated lifting platform packed up is reached immediately below Awaiting Overhaul fan, launch four hold-down arms, tighten up oil cylinder and let out energy button, with foot-operated foot pump until withstand cooling fan, then pull down cooling fan check screw, loosen oil cylinder and let out energy button, inspection platform height drops to 0.65 meter, inspection platform is passed through together with cooling fan pebbles ground, main transformer place, to passage spaciousness place's maintenance fan.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thus, some details in embodiment should not formed restriction of the present utility model, the utility model by the scope that defines using appended claims as protection domain of the present utility model.
Claims (10)
1. a hand-operated lifting platform, it is characterized in that: include underframe (1), the bench board (2) parallel with described underframe (1) is provided with in described underframe (1) top, the fluid pressure drive device being provided with jacking system and driving this jacking system to rise and decline between described bench board (2) and described underframe (1), described jacking system comprises two groups of parallel upper interior bars (3), upper outside bar (4), bar (5) and lower outside bar (6) in lower, the lower end of described lower interior bar (5) and described lower outside bar (6) is hinged on described underframe (1) respectively, the upper end of described lower interior bar (5) and the lower end of described upper outside bar (4) hinged, the upper end of described lower outside bar (6) and the lower end of described upper interior bar (3) hinged, the upper end of described interior bar (3) and described upper outside bar (4) is hinged on the bottom surface of described bench board (2) respectively, first connecting rod (7) is provided with between two parallel lower interior bars (5), second connecting rod (8) is provided with between two parallel upper outside bars (4), described fluid pressure drive device comprises and is located at manual pump (9) on described underframe (1) and control box (10), the hydraulic actuating cylinder (11) for driving described jacking system to rise is provided with between described first connecting rod (7) and second connecting rod (8).
2. hand-operated lifting platform according to claim 1, it is characterized in that: the cylinder body of described hydraulic actuating cylinder (11) is hinged on described first connecting rod (7), the piston rod of described hydraulic actuating cylinder (11) is hinged on described second connecting rod (8), and (11) are also equipped with hydraulic lock to described hydraulic actuating cylinder.
3. hand-operated lifting platform according to claim 2, it is characterized in that: described underframe (1) surrounds rectangle by four beams, inside two beams that described underframe (1) is parallel, be provided with interior plate (12), the lower interior bar (5) described in two is hinged on described interior plate (12) respectively by bearing pin.
4. hand-operated lifting platform according to claim 3, it is characterized in that: described underframe (1) is provided with two scissors and fixes ear (13), described lower outside bar (6) is fixed ear (13) by described scissor and is hinged on described underframe (1).
5. hand-operated lifting platform according to claim 4, it is characterized in that: be fixed with two pieces of stay bearing plates (16) in described bench board (2) bottom surface, upper outside bar (4) described in two is hingedly fixed on described stay bearing plate (16) respectively, also be connected with third connecting rod (14) in the upper end of two described upper outside bars (4), the upper end of described interior bar (3) is also fixed ear (13) by described scissor and is hinged on described bench board (2) bottom surface.
6. hand-operated lifting platform according to claim 5, is characterized in that: described manual pump (9) is foot pump.
7. hand-operated lifting platform according to claim 6, is characterized in that: described underframe (1) bottom is provided with four rollers (18) for walking.
8. hand-operated lifting platform according to claim 7, is characterized in that: described underframe (1) is also provided with the hand rod (19) promoting the walking of this hand-operated lifting platform.
9. hand-operated lifting platform according to claim 8, is characterized in that: between two parallel upper interior bars (3), be connected with double leval jib (15).
10. hand-operated lifting platform according to claim 9, it is characterized in that: this hand-operated lifting platform also comprises the bracing frame being located at bottom, support frame as described above comprises four groups of corners being hinged on described underframe (1) thus can 270 degree of supporting component (17) rotated, described supporting component (17) comprises one end and the hinged hold-down arm (1701) of described underframe (1), the other end of described hold-down arm (1701) is provided with tapped bore and is provided with studdle (1702) by this tapped bore, described studdle (1702) upper end is provided with by rotating with the driving lever (1703) regulating described studdle (1702) collapsing length, lower end is provided with and is pressed in ground supporting disk (1704).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872468.5U CN204529216U (en) | 2014-12-31 | 2014-12-31 | A kind of hand-operated lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872468.5U CN204529216U (en) | 2014-12-31 | 2014-12-31 | A kind of hand-operated lifting platform |
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| Publication Number | Publication Date |
|---|---|
| CN204529216U true CN204529216U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420872468.5U Active CN204529216U (en) | 2014-12-31 | 2014-12-31 | A kind of hand-operated lifting platform |
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| CN (1) | CN204529216U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923585A (en) * | 2016-06-27 | 2016-09-07 | 国网山东省电力公司蓬莱市供电公司 | Electric maintenance lifting platform |
| CN107777612A (en) * | 2017-11-20 | 2018-03-09 | 无锡市天密石化通用件厂 | A kind of feeding device of formation of sealing component |
| CN108199853A (en) * | 2017-12-28 | 2018-06-22 | 深圳市安鼎信息技术有限公司 | Boxlike current divider |
-
2014
- 2014-12-31 CN CN201420872468.5U patent/CN204529216U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923585A (en) * | 2016-06-27 | 2016-09-07 | 国网山东省电力公司蓬莱市供电公司 | Electric maintenance lifting platform |
| CN105923585B (en) * | 2016-06-27 | 2018-07-10 | 楼赞赞 | A kind of electric power overhaul hoistable platform |
| CN107777612A (en) * | 2017-11-20 | 2018-03-09 | 无锡市天密石化通用件厂 | A kind of feeding device of formation of sealing component |
| CN108199853A (en) * | 2017-12-28 | 2018-06-22 | 深圳市安鼎信息技术有限公司 | Boxlike current divider |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |