CN211688049U - Manual and electric pulley block type lifter - Google Patents
Manual and electric pulley block type lifter Download PDFInfo
- Publication number
- CN211688049U CN211688049U CN201921787557.9U CN201921787557U CN211688049U CN 211688049 U CN211688049 U CN 211688049U CN 201921787557 U CN201921787557 U CN 201921787557U CN 211688049 U CN211688049 U CN 211688049U
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- support arm
- gear
- fixed
- support
- pulley block
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- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a manual and electric pulley block type lifter, which comprises a base bracket, 2 parallel support arm combinations and a fixed bracket, wherein the base bracket, the support arm combinations and the fixed bracket are sequentially distributed from bottom to top; every support arm combination includes the arm group of 2 symmetries, every arm group includes support arm and lower support arm, the arm group of 2 symmetries is left arm group and right arm group, wherein, go up through the upper and lower support arm connecting axle of one between support arm and the lower support arm, the upper and lower support arm connecting axle of sharing between 2 left arm groups, be connected with 2 assembly pulleys between 2 upper and lower support arm connecting axles, the top of going up the support arm is connected with the fixed bolster, be provided with the bobbin in the fixed bolster, the inside part winding of bobbin position in the fixed bolster has 2 sets of mutually independent wire rope, wire rope is connected to the assembly pulley through a leading wheel on the left support arm after wearing out the fixed bolster downwards. The utility model discloses can be at any time height-adjusting, labour saving and time saving saves trouble, has solved various fixed ladders, and the use of inserting the frame etc. is inflexible.
Description
Technical Field
The utility model relates to a building field especially relates to a dual-purpose pulley block formula riser of flashlight.
Background
In real life, people usually do work at high places or put articles at high places by using ladders. E.g., cleaning of the shed surface, and placing the item between 'compartments'. Furthermore, in the building operation, the steel bar independent columns and the plate walls are bound by using ladders, and tools used by 'inserting frames' white scraping workers and 'split heads' used by bricklayers during brick laying are generally fixed, so that the height of the tools is limited (sometimes not high enough or ultrahigh).
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the above-mentioned weak point that exists among the prior art.
In order to achieve the purpose, the embodiment of the utility model provides a manual and electric pulley block type lifter, which comprises a base support, 2 parallel support arm combinations and a fixed support, wherein the base support, the 2 parallel support arm combinations and the fixed support are distributed in sequence from bottom to top; each support arm combination comprises 2 symmetrical support arm groups, each support arm group comprises an upper support arm and a lower support arm, the 2 symmetrical support arm groups are a left support arm group and a right support arm group, the upper support arm and the lower support arm are connected through an upper support arm connecting shaft and a lower support arm connecting shaft, the 2 left support arm groups share the upper support arm connecting shaft and the lower support arm connecting shaft, the 2 right support arm groups share the upper support arm connecting shaft and the lower support arm connecting shaft, and the 4 lower support arms are fixed on the base support; the inner side and the outer side of the front end and the rear end of each upper support arm connecting shaft and each lower support arm connecting shaft are respectively fixed with a fixed steel sheet and a limiting plate, 2 pulley blocks are connected between the 2 upper support arm connecting shafts and the 2 lower support arm connecting shafts, and the pulley blocks are fixed between the fixed steel sheets on the same side; the top end of the upper support arm is connected with a fixed support, a cylinder shaft is arranged in the fixed support, two ends of the cylinder shaft penetrate through the front side surface and the rear side surface of the fixed support, the transmission shaft is provided with threads matched with the second gear and can be meshed with the second gear, the top end of the transmission shaft is connected with a power device, the power device is fixed on the fixed support, 2 groups of mutually independent steel wire ropes are wound on the part of the cylinder shaft located inside the fixed support, and the steel wire ropes penetrate out of the fixed support downwards and are connected to the pulley block through a guide wheel on the left support arm.
In one possible embodiment, a stabilizing carrier gear set is provided between the symmetrically distributed upper arms.
In a possible further embodiment, the stabilizing support gear set comprises 4 gear shafts, and the lower ends of the 2 lower support arms are respectively welded to the gear shafts on both sides and can rotate along with the gear shafts on both sides.
In one possible embodiment, the power unit is a lifting crank.
In one possible embodiment, the power unit is an electric motor unit.
In one possible embodiment, the other side of the cylinder shaft is provided with a speed-limiting lock box which is coaxially arranged with the cylinder shaft.
In one possible implementation, the model of the speed-limiting lock is BFK 458-06E/N.
In a possible embodiment, the bottom of the base support is also provided with base support legs.
The utility model discloses can height-adjusting at any time, nimble application has solved various ladders of fixed, and the use of inserting the frame etc. is inflexible. Time-saving, labor-saving and trouble-saving.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a pulley block type lifter for manual and electric use according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 illustrates the rotational relationship of four gear shafts in a stabilizer rack gear set;
FIG. 5 is a view showing a positional relationship in which a shift fork catches a first gear;
FIG. 6 is a schematic diagram of the position relationship between the speed-limiting receiver and the fixed bracket;
FIG. 7 is a schematic structural diagram of a speed-limiting band-type brake;
fig. 8 is a schematic structural diagram of a second gear according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a first gear according to an embodiment of the present invention;
description of reference numerals:
1-base support, 2-lower support arm, 3-upper support arm, 31-guide wheel, 4-upper and lower support arm connecting shaft, 41-limiting plate, 42-fixed steel sheet, 5-fixed support, 6-pulley block, 7-steel wire rope, 8-cylinder shaft, 9-first gear, 10-second gear, 11-transmission shaft, 12-shifting fork, 13-stable support gear set, 14-base support leg and 15-speed-limiting holding box.
Detailed Description
The terms "first," "second," and the like in the description and in the claims and in the drawings of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a list of steps or elements. A method, system, article, or apparatus is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, system, article, or apparatus.
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1-9, the embodiment of the utility model provides a dual-purpose pulley block formula riser of flashlight, including base support 1 that from the bottom up distributes in proper order, 2 parallel support arm combinations, fixed bolster 5.
Every support arm combination includes the arm group of 2 symmetries, every arm group includes support arm 3 and lower support arm 2, the arm group of 2 symmetries is left support arm group and right support arm group, wherein, go up support arm 3 and connect through upper and lower support arm connecting axle 4 between the lower support arm 2, support arm connecting axle 4 about sharing between 2 left support arm groups, support arm connecting axle 4 about sharing between 2 right support arm groups, 4 lower support arm 2 are fixed on base support 1.
The inner side and the outer side of the front end and the rear end of each upper support arm connecting shaft 4 are respectively fixed with a fixed steel sheet 42 and a limiting plate 41, 2 pulley blocks 6 are connected between the 2 upper support arm connecting shafts, and the pulley blocks 6 are fixed between the fixed steel sheets 42 on the same side.
The top end of the upper support arm 3 is connected with a fixed support 5, a barrel shaft 8 is arranged in the fixed support 5, two ends of the barrel shaft 8 penetrate through the front side and the rear side of the fixed support 5 and are fixed with a first gear 9, an annular second gear 10 is arranged on the periphery of the first gear 9, the inner side of the second gear 10 is meshed with the first gear 9, the thickness of the second gear 10 is smaller than that of the first gear 9, a shifting fork 12 and a longitudinal transmission shaft 11 are arranged on the left side and the right side of the first gear 9, one end of the shifting fork 12 is fixed on the fixed support 5, the other end of the shifting fork is used for clamping the part, which is not shielded by the second gear 10, of the first gear 9, a thread matched with the second gear 10 is arranged on the transmission shaft 11 and can be meshed with the second gear 10, the top end of the transmission shaft 11. The part of the drum shaft 8 positioned in the fixed bracket 5 is wound with 2 groups of mutually independent steel wire ropes 7, and the steel wire ropes 7 downwards penetrate through the fixed bracket 5 and are connected to the pulley block 6 through a guide wheel 31 on the left support arm.
In one example, a stabilizing carrier gear set 13 is provided between the symmetrically distributed upper arms 3.
Wherein, the stabilizing support gear set 13 comprises 4 gear shafts, and the lower ends of the 2 lower support arms 2 are respectively welded on the gear shafts at the two sides and can rotate along with the gear shafts at the two sides.
In one example, the power device is a lifting crank.
In one example, the power plant is selected from a motor plant.
In one example, the other side of the drum shaft 8 is provided with a speed-limiting lock box 15 which is coaxially arranged with the drum shaft 8 and is braked at any time when the lifter falls.
In one example, the model number of the speed limiting lock box 15 is BFK 458-06E/N.
In one example, the bottom of the base support 1 is also provided with base support legs 14.
The working principle and the process are as follows:
after the assembly is completed as shown in fig. 1-2, according to the actual required height, the lifting crank is rotated counterclockwise or the motor device is started to drive the drum shaft 8 to rotate clockwise, and the steel wire rope 7 is wound on the drum shaft 8, so that the pulley block 6 moves in opposite directions, the upper and lower support arms at the two sides are pulled to be gradually upright, and the lifting purpose is achieved.
When the required height is reached, the shifting fork 12 blocks the first gear 9, so as to block the rotation of the barrel shaft 8, so that the whole device stops lifting, and the balance of the fixed support 5 is stabilized, and is completed by the stabilizing support gear set 13. In the lifting process of the device, four groups of gear shafts of the stabilizing support gear set 13 are symmetrically meshed, as shown by arrows in the figure, the gear shaft A and the gear shaft B rotate oppositely, the gear shaft B and the gear shaft C rotate oppositely, and the gear shaft C and the gear shaft D rotate oppositely, so that the gear shaft A and the gear shaft D cannot rotate forwards, the balance of the fixing support 5 is kept motionless, and unsafe factors of people or goods on the fixing support 5 are eliminated.
When the device is lifted until the upper and lower support arms abut against the limiting plates 41, the lifting is stopped, and the highest position of the device is reached.
When descending, the shifting fork 12 is opened, the shifting fork 12 is separated from the first gear 9, the pulley block 6 rotates reversely under the action of gravity, the stabilizing support gear set 13 also rotates reversely, the upper support arm and the lower support arm are folded oppositely, the descending purpose is achieved, the speed-limiting box can slow down the descending speed, and the descending speed is prevented from being gradually accelerated.
After the use, the steel wire ropes on the pulley blocks are taken off, the steel wire ropes are all wound on the drum shafts, and then the pulley blocks on the two sides are dismounted.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A manual and electric pulley block type lifter is characterized by comprising a base support (1), 2 parallel support arm combinations and a fixed support (5), which are sequentially distributed from bottom to top;
each support arm combination comprises 2 symmetrical support arm groups, each support arm group comprises an upper support arm (3) and a lower support arm (2), the 2 symmetrical support arm groups are a left support arm group and a right support arm group, the upper support arm (3) and the lower support arm (2) are connected through an upper support arm connecting shaft and a lower support arm connecting shaft (4), the 2 left support arm groups share the upper support arm connecting shaft and the lower support arm connecting shaft (4), the 2 right support arm groups share the upper support arm connecting shaft and the lower support arm connecting shaft (4), and the 4 lower support arms (2) are fixed on the base support (1);
the inner side and the outer side of the front end and the rear end of each upper support arm connecting shaft (4) and each lower support arm connecting shaft are respectively fixed with a fixed steel sheet (42) and a limiting plate (41), 2 pulley blocks (6) are connected between the 2 upper support arm connecting shafts and the 2 lower support arm connecting shafts, and the pulley blocks (6) are fixed between the fixed steel sheets (42) on the same side;
the top end of the upper support arm (3) is connected with a fixed support (5), a cylinder shaft (8) is arranged in the fixed support (5), two ends of the cylinder shaft (8) penetrate through the front side and the rear side of the fixed support (5) and are fixed with a first gear (9), an annular second gear (10) is arranged on the periphery of the first gear (9), the inner side of the second gear (10) is meshed with the first gear (9), the thickness of the second gear (10) is smaller than that of the first gear (9), a shifting fork (12) and a longitudinal transmission shaft (11) are arranged on the left side and the right side of the first gear (9), one end of the shifting fork (12) is fixed on the fixed support (5), the other end of the shifting fork is used for clamping the part of the first gear (9) which is not shielded by the second gear (10), a thread matched with the second gear (10) is arranged on the transmission shaft (11) and can be meshed with the second gear (10), a power device is connected with the top end, the power device is fixed on the fixed support (5), 2 groups of mutually independent steel wire ropes (7) are wound on the part of the cylinder shaft (8) positioned in the fixed support (5), and the steel wire ropes (7) downwards penetrate out of the fixed support (5) and then are connected to the pulley block (6) through a guide wheel (31) on the left support arm.
2. Manual and electric pulley block type lifter according to claim 1, characterized in that stabilizing support gear sets (13) are arranged between the symmetrically distributed upper support arms (3).
3. The manual/electric pulley block type lifter according to claim 2, wherein the stabilizing support gear set (13) comprises 4 gear shafts, and the lower ends of the 2 lower support arms (2) are respectively welded to the gear shafts at both sides and can rotate along with the gear shafts at both sides.
4. The manual and electric pulley block type lifter according to claim 1, wherein the power device is a lifting crank.
5. The manual and electric pulley block type lifter according to claim 1, wherein the power device is a motor device.
6. The pulley block type lifter for manual and electric purposes according to claim 1, characterized in that a speed-limiting lock (15) is arranged on the other side of the cylinder shaft (8) and is coaxially mounted with the cylinder shaft (8).
7. The manual and electric pulley block type lifter is characterized in that the model of the speed-limiting box (15) is BFK 458-06E/N.
8. The manual and electric pulley block type lifter is characterized in that a base supporting leg (14) is further arranged at the bottom of the base support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787557.9U CN211688049U (en) | 2019-10-23 | 2019-10-23 | Manual and electric pulley block type lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787557.9U CN211688049U (en) | 2019-10-23 | 2019-10-23 | Manual and electric pulley block type lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211688049U true CN211688049U (en) | 2020-10-16 |
Family
ID=72785534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921787557.9U Expired - Fee Related CN211688049U (en) | 2019-10-23 | 2019-10-23 | Manual and electric pulley block type lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211688049U (en) |
-
2019
- 2019-10-23 CN CN201921787557.9U patent/CN211688049U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |