CN113771008B - Waist-back type portable operation tool booster - Google Patents
Waist-back type portable operation tool booster Download PDFInfo
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- CN113771008B CN113771008B CN202111016791.3A CN202111016791A CN113771008B CN 113771008 B CN113771008 B CN 113771008B CN 202111016791 A CN202111016791 A CN 202111016791A CN 113771008 B CN113771008 B CN 113771008B
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- positioning seat
- gas spring
- cross beam
- upright post
- stand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/0006—Exoskeletons, i.e. resembling a human figure
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0237—Devices for protecting a specific part of a plant, e.g. roots, trunk or fruits
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Rehabilitation Tools (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a waist-back type portable operation tool booster device which comprises a stand column (1), braces (2), a guy cable (3), a gas spring (4) and a cross beam (5); the utility model discloses a portable operation tool, including stand (1), braces (2), cable (3), gas spring (4) are established on stand (1), braces (2) are established on stand (1), the one end of crossbeam (5) is established at stand (1) top and is fixed a position at arbitrary angle, cable (3) one end is connected with gas spring (4), and the other end is connected with portable operation tool (6) along crossbeam (5), the pressure of gas spring (4) reaches a balanced state in arbitrary position with the gravity of portable operation tool (6), and makes portable operation tool (6) static in this position. The device enables the force held by an operator to be transferred to the waist and the back, can reduce fatigue and has higher operation efficiency for long-time operation.
Description
Technical Field
The invention relates to the technical field of portable working tools, in particular to a waist-back type portable working tool power assisting device.
Background
At present, various portable working tools are available, and generally, a working body and a generator or a battery pack for providing power are provided, when the portable working tool is used, the generator or the battery pack is carried on an operator, and then the working body is in a handheld mode, so that the load of the operator can be reduced, but the portable working tool is still in a large burden for the operator, cannot work for a long time, and the long-time working efficiency is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a waist-back type portable operation tool booster device which is capable of reducing fatigue and has higher operation efficiency for long-time operation by transferring the force held by an operator to the waist and the back
The technical scheme of the invention is that the waist-back type portable operation tool booster device with the following structure comprises a stand column, a brace, a stay rope, a gas spring and a cross beam; the gas spring is arranged on the upright post, the braces are arranged on the upright post, one end of the cross beam is arranged at the top of the upright post and positioned at any angle, one end of the inhaul cable is connected with the gas spring, the other end of the inhaul cable is connected with the portable working tool along the cross beam, and the pressure of the gas spring and the gravity of the portable working tool reach a balance state at any position, so that the portable working tool is static at the position.
When the portable work tool is required to be up, an upward force is required to be provided to break the equilibrium state, so that the piston rod of the gas spring is retracted and pulls the cable to retract until the upward force is lost to reach the equilibrium state again and is at rest in this position.
When the portable work tool is required to be lowered, a downward force is required to be provided to break the equilibrium state, so that the cable pulls the piston rod of the gas spring to extend until the downward force is lost to reach the equilibrium state again and to rest in that position.
The piston rod of the gas spring faces downwards, and one end of the inhaul cable is connected with the end part of the piston rod of the gas spring.
One end of the inhaul cable is connected with the end part of the piston rod, a sliding seat is arranged in the bottom of the upright post, the sliding seat is fixed with the end part of the piston rod, a roller is arranged in the sliding seat, one end of the inhaul cable is fixed on the cylinder body of the gas spring, the other end of the inhaul cable bypasses the roller to extend out of the upright post and is connected with the portable operation tool, the inhaul cable stretches out and draws back to drive the sliding seat to slide in the upright post, and the sliding seat slides to drive the expansion of the gas spring.
The cylinder body of gas spring is equipped with the positioning seat outward, the one end of cable is fixed on the positioning seat, and the other end passes through the through-hole of positioning seat after the gyro wheel detours to change again.
The cable overcoat has the spool, the one end of spool is established in the stand, and the other end extends to the crossbeam, at the junction of stand and crossbeam, the spool has convex arc section.
The lower part of the upright post is provided with a waist strap, and the braces are provided with two shoulder straps.
The invention also comprises a storage positioning mechanism, wherein the storage positioning mechanism comprises a first positioning seat, a second positioning seat and a positioning rod, the first positioning seat is connected to the upright post in a sliding way and is locked with the upright post to be positioned at any position after sliding, the second positioning seat is connected to the cross beam in a sliding way and is locked with the cross beam to be positioned at any position after sliding, one end of the positioning rod is hinged to the first positioning seat, the other end of the positioning rod is hinged to the second positioning seat, in a storage state, the cross beam rotates and the upright post is folded to be overlapped, the first positioning seat slides to the middle part of the upright post and is locked, the second positioning seat slides to the outer end of the cross beam and is locked, and the outer end of the cross beam is fixed on the upright post through the positioning rod.
In the state of use, the crossbeam rotates and the stand is the vertical state, first positioning seat slides to the top of stand and locks, the second positioning seat slides to being close to the inner of crossbeam and locks, and the top of stand to one section of first positioning seat, the inner of crossbeam to one section of second positioning seat and locating lever form a triangle-shaped this moment, make the locating lever provide a holding power to the crossbeam.
The connecting part of the top of the upright post and one end of the cross beam is provided with a first connector and a second connector, the first connector is fixed at the top of the upright post, the first connector is provided with an inner hole, two ends of the inner hole are provided with inner gears, the second connector is provided with three connectors, two connectors are coaxial and embedded in a through hole of the first connector, and the other connector penetrates through a side wall notch of the first connector and is fixed with one end of the cross beam; the two connectors are respectively provided with a button in the holes of the two connectors in the through hole of the first connector and are meshed through gears, the outer wall of the button is provided with a circular gear, and the inside of the button is provided with a spring; one end of the spring is propped against the inner hole wall of the button, and the other end of the spring is propped against the inner hole wall of the second joint; in the beam positioning state, the buttons enable the outer ends of the circular gears at the two ends to be meshed with the corresponding inner gears at the same end under the action of the springs, the inner ends of the circular gears are meshed with the second inner gears, at the moment, the second connector and the buttons at the two ends cannot rotate, and at the moment, the beam and the upright post are positioned at an angle; in the state of adjusting the angle of the cross beam, the button is pressed inwards, the extrusion springs enable the circular gear shafts at the two ends to move inwards and separate from the internal gear, at the moment, the cross beam rotates freely, and the circular gear of the button is meshed with the second internal gear all the time.
After adopting the structure, the invention has the following advantages:
1. the portable working tool is in a static position by utilizing the pressure of the gas spring and the gravity of the portable working tool to reach a balance state at any position, the handheld force is completely transferred to the upright post to be operated, and the upright post is generally applied to the back and waist of an operator, so that the fatigue can be reduced, and the high working efficiency can be realized during long-time operation.
2. When the portable working tool needs to be upwards, an upward force needs to be provided to cause the balance state to be destroyed, so that the piston rod of the gas spring is retracted and pulls the inhaul cable to be contracted until the upward force disappears to reach the balance state again and then to be at the position, namely, the portable working tool is upwards, only a small upward pulling force is needed to realize the operation, the pulling force is far smaller than the gravity of the portable working tool, and the burden of an operator is not increased.
3. When the portable working tool needs to be downward, a downward force needs to be provided to cause the balance state to be destroyed, so that the guy cable pulls the piston rod of the gas spring to stretch out until the downward force disappears to reach the balance state again and then to be at the position, namely, the portable working tool is downward, only a small downward pulling force is needed to realize, and the pulling force is far smaller than the gravity of the portable working tool, so that the burden of an operator is not increased.
4. Because the piston rod of gas spring is down, and adopts the gyro wheel structure, can adopt market standard spare gas spring like this, reduce cost, and the cable is flexible then to drive the sliding seat and slide in the stand, and the sliding seat slides then drives the flexible of gas spring, makes the piston rod of gas spring more stable when the atress, can not control the skew, all acts on the piston rod promptly, increases stability and reliability.
5. The device solves the problem that the weight of the hand-held operation tool carried by the arm is transferred to the shoulder and back, thereby reducing or relieving or even eliminating the fatigue caused by the hand-held operation tool and improving the operation efficiency. The method is suitable for reducing, relieving or eliminating fatigue brought by the hand-held working tool, such as the use scene of the hand-held young fruit bagging machine.
Drawings
Fig. 1 is an exploded view of a waist-back type portable power tool assist device according to the present invention.
Fig. 2 is a schematic view showing a state of use of the waist-back type portable power tool booster of the present invention.
FIG. 3 is a schematic diagram of the connection of the gas spring of the present invention.
Fig. 4 is a schematic view of the roller assembly of the present invention.
Fig. 5 is a complete schematic diagram of the power assisting device for the waist-back type portable working tool of the invention.
Fig. 6 is a schematic view showing a state of storage of the waist-back type portable power tool assist device according to the present invention.
Fig. 7 is a schematic view of a portion of another embodiment of the connection structure of the upright and the cross beam of the present invention.
Fig. 8 is a schematic cross-sectional view of another embodiment of the connection structure of the upright and the cross beam of the present invention.
As shown in the figure: 1. column, 2, braces, 2.1, shoulder bandage, 3, cable, 4, gas spring, 5, crossbeam, 6, portable working tool, 7, sliding seat, 8, gyro wheel, 9, positioning seat, 10, spool, 11, first positioning seat, 12, second positioning seat, 13, locating lever, 14, first joint, 14.1, internal gear, 15, second joint, 15.1, second internal gear, 16, button, 16.1, circular gear, 17, spring, 18, waist bandage.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the waist-back type portable working tool booster device of the invention comprises a column 1, a brace 2, a guy rope 3, a gas spring 4 and a cross beam 5; the gas spring 4 is arranged on the upright post 1, the gas spring 4 adopts a standard component, and the braces 2 are arranged on the upright post 1. The upright 1 of this embodiment is a hollow structure, and the gas spring 4 is installed inside the upright 1.
One end of the cross beam 5 is arranged at the top of the upright 1 and positioned at any angle, and the inner end of the cross beam 5 is rotationally connected with the top of the upright 1, so that the angle between the cross beam 5 and the upright 1 can be adjusted, and the cross beam 5 is approximately perpendicular to the upright 1 in normal use. When the folding device is stored, the cross beam 5 is rotated to fold the cross beam 5 and the upright 1, and the two are approximately parallel.
One end of the guy cable 3 is connected with the gas spring 4, the other end is connected with the portable operation tool 6 along the cross beam 5, the outer end 5 of the cross beam 5 is provided with a reversing wheel, so that the guy cable 3 is bent downwards to extend, at the moment, the guy cable 3 is bent once to the cross beam 5 after coming out of the upright post 1, and then is downwards connected with the portable operation tool 6 after being along the whole cross beam 5, so that the guy cable 3 bypasses the top of the head of an operator.
The pressure of the gas spring 4 and the weight of the portable work tool 6 reach a balance state at any position, and the portable work tool 6 is stationary at the position. When the portable work tool needs to be up, an upward force needs to be provided to break the equilibrium state, so that the piston rod of the gas spring 4 is retracted and pulls the cable 3 to contract until the upward force disappears to reach the equilibrium state again and to rest in this position. When the portable work tool needs to be lowered, a downward force needs to be provided to break the equilibrium state, so that the cable 3 pulls the piston rod of the gas spring 4 to be extended until the downward force disappears to reach the equilibrium state again and to be stationary at this position.
The piston rod of the gas spring 4 faces downwards, and one end of the guy rope 3 is connected with the end part of the piston rod of the gas spring 4. One end of the inhaul cable 3 is connected with the end part of the piston rod, a sliding seat 7 is arranged in the bottom of the upright post 1, and the sliding seat 7 is fixed with the end part of the piston rod. As shown in fig. 4, the sliding seat 7 is internally provided with a roller 8, one end of the guy cable 3 is fixed on the cylinder body of the gas spring 4, the other end bypasses the roller 8, stretches out of the upright post 1 and is connected with the portable working tool 6, the guy cable 3 stretches out and draws back to drive the sliding seat 7 to slide in the upright post 1, and the sliding seat 7 stretches out and draws back to drive the gas spring 4. Through this structure, when making cable 3 when pulling the piston rod of gas spring 4, make piston rod left and right sides atress to can be more flexible smoother of piston rod, the occasion of high frequency use can increase the durability of gas spring 4 simultaneously. Meanwhile, under the premise that the elasticity of the gas spring adopted in the market is large, when certain portable tools only need small elasticity, the stress on the inhaul cable 3 is half of the elasticity of the gas spring through the structure of the roller 8, so that the use requirement under the condition can be met. The cross section of the sliding seat 7 is of a diamond structure, can be embedded into a rectangular inner hole of the upright post 1 and is arranged along a diagonal line, and can only stretch up and down in the upright post 1 so as not to rotate.
As shown in fig. 3, the cylinder body of the gas spring 4 is provided with a positioning seat 9, one end of the inhaul cable 3 is fixed on the positioning seat 9, the other end bypasses the roller 8 and then passes through a through hole of the positioning seat 9, and the through hole can play two roles on the inhaul cable 3: the end of one side of the first fixed stay rope 3 acts, and the other side guides the stay rope 3 wound around the rear roller 8, so that friction force is prevented from being increased due to collision with the inside of the upright 1.
The stay rope 3 is sleeved with a wire tube 10, one end of the wire tube 10 is arranged in the upright post 1, and the inner end of the wire tube 10 is fixed at a through hole of the positioning seat 9, so that the stay rope 3 can enter the wire tube 10 after passing through the positioning seat 9; the other end of the spool 10 extends to the cross beam 5, and before the outer end of the cross beam 5 turns, the stay rope 3 extends out of the spool 10, and the action of the spool 10 protects the stay rope 3 and can reduce the friction force of the stay rope 3. The conduit 10 has a convex arc section at the junction of the upright 1 and the cross beam 5, so that when the cross beam 5 rotates around the upright 1, the conduit 10 is not stretched, and the conduit is rotated in advance to be elongated by a required length.
As shown in fig. 5, a waist strap 18 is arranged below the upright 1, and the back strap 2 is provided with two shoulder straps 2.1.
Connection structure of column 1 and cross beam 5 of the present invention example 1: as shown in fig. 6, the invention further comprises a storage positioning mechanism, the storage positioning mechanism comprises a first positioning seat 11, a second positioning seat 12 and a positioning rod 13, the first positioning seat 11 is slidably connected on the upright 1 and is locked with the upright 1 to be positioned at any position after sliding, the second positioning seat 12 is slidably connected on the cross beam 5 and is locked with the cross beam 5 to be positioned at any position after sliding, the first positioning seat 11 and the second positioning seat 12 both adopt movable clamping block structures and are tightly clamped and fixed through screw tightening, and four-corner plum blossom-shaped rotating blocks are arranged at two ends of the screw, so that an operator can conveniently rotate by hand to adjust.
One end of the positioning rod 13 is hinged to the first positioning seat 11, the other end of the positioning rod is hinged to the second positioning seat 12, in the storage state, the cross beam 5 rotates and the upright 1 is folded to be overlapped, the first positioning seat 11 slides to the middle of the upright 1 and is locked, the second positioning seat 12 slides to the outer end of the cross beam 5 and is locked, and the outer end of the cross beam 5 is fixed on the upright 1 through the positioning rod 13.
As shown in fig. 5, in the use state, the beam 5 rotates and the column 1 is in a vertical state, the first positioning seat 11 slides to the top of the column 1 and is locked, the second positioning seat 12 slides to the inner end close to the beam 5 and is locked, at this time, a triangle is formed between the top of the column 1 and a section of the first positioning seat 11, between the inner end of the beam 5 and a section of the second positioning seat 12, and the positioning rod 13, so that the positioning rod 13 provides a supporting force for the beam 5.
Connection structure of column 1 and cross beam 5 of the present invention example 2:
as shown in fig. 7 and 8, a first joint 14 and a second joint 15 are arranged at the joint of the top of the upright 1 and one end of the cross beam 5, the first joint 14 is fixed at the top of the upright 1, the first joint 14 is provided with an inner hole, two ends of the inner hole are provided with internal gears 14.1, the second joint 15 is provided with three connectors, two connectors are coaxial and are embedded in a through hole of the first joint 14, and the other connector passes through a side wall notch of the first joint 14 and is fixed with one end of the cross beam 5; the second joint 15 is actually T-shaped, the holes of the two connectors in the through hole of the first joint 14 are respectively provided with a button 16, the two connectors are engaged through gears, and the two connectors in the through hole of the first joint 14 are used as rotating shafts for swinging the cross beam 5. The two are meshed through gears, namely, the holes of the two connectors are internally provided with a second internal gear 15.1,
the outer wall of the button 16 is provided with a circular gear 16.1, and the inside of the button is provided with a spring 17; the button 16 at each end has a circular gear inner section which meshes with the second internal gear 15.1 and an outer section which meshes with or separates from the corresponding internal gear 14.1 at the same end. One end of the spring 17 is propped against the inner hole wall of the button 16, and the other end of the spring is propped against the inner hole wall of the second joint 15; the two ends of the second joint 15 are respectively provided with an inner hole, and are not communicated, and the inner ends of the springs 17 are propped against the bottom surface of the inner hole.
The push button 16 is axially slidable between the second internal gear 15.1 and the internal gear 14.1, and the spring 17 acts to provide a pushing force pushing the push button 16 outwards, so that the circular gear 16.1 of the push button 16 meshes with the internal gear 14.1.
In the positioning state of the cross beam 5, the buttons 16 enable the outer ends of the circular gears 16.1 at the two ends to be meshed with the corresponding inner gears 14.1 at the same end under the action of the springs 17, the inner ends of the circular gears are meshed with the second inner gears 15.1, at the moment, the second joint 15 and the buttons 16 at the two ends cannot rotate, and at the moment, the cross beam 5 and the upright column 1 are positioned at an angle;
in the angular adjustment of the transverse beam 5, the push button 16 is pressed inwards, the pressing spring 17 moves the circular gears 16.1 at the two ends axially inwards and separates from the internal gear 14.1, at this time the transverse beam 5 rotates freely, and the circular gears 16.1 of the push button 16 are always meshed with the second internal gear 15.1.
Claims (7)
1. A portable operation instrument booster unit of back of body, its characterized in that: comprises an upright post (1), a brace (2), a guy cable (3), a gas spring (4) and a cross beam (5); the gas spring (4) is arranged on the upright post (1), the braces (2) are arranged on the upright post (1), one end of the cross beam (5) is arranged at the top of the upright post (1) and positioned at any angle, one end of the guy cable (3) is connected with the gas spring (4), the other end of the guy cable is connected with the portable working tool (6) along the cross beam (5), and the pressure of the gas spring (4) and the gravity of the portable working tool (6) reach a balance state at any position, so that the portable working tool (6) is stationary at the position; the piston rod of the gas spring (4) faces downwards, and one end of the guy cable (3) is connected with the end part of the piston rod of the gas spring (4); one end of the inhaul cable (3) is connected with the end part of the piston rod, a sliding seat (7) is arranged in the bottom of the upright post (1), the sliding seat (7) is fixed with the end part of the piston rod, a roller (8) is arranged in the sliding seat (7), one end of the inhaul cable (3) is fixed on a cylinder body of the gas spring (4), the other end of the inhaul cable bypasses the roller (8) to extend out of the upright post (1) and is connected with the portable operation tool (6), the inhaul cable (3) stretches to drive the sliding seat (7) to slide in the upright post (1), and the sliding seat (7) stretches to drive the gas spring (4) to stretch;
the cylinder body of the gas spring (4) is provided with a positioning seat (9), one end of the inhaul cable (3) is fixed on the positioning seat (9), and the other end of the inhaul cable passes through a through hole of the positioning seat (9) after bypassing the reversing from the idler wheel (8).
2. The waist and back type portable working tool booster according to claim 1, wherein: when the portable work tool is required to be up, an upward force needs to be provided to break the equilibrium state, so that the piston rod of the gas spring (4) is retracted and pulls the stay (3) to contract until the upward force disappears to reach the equilibrium state again and to be stationary at the position.
3. The waist and back type portable working tool booster according to claim 1, wherein: when the portable work tool is required to be lowered, a downward force is required to be provided to break the equilibrium state, so that the stay (3) pulls the piston rod of the gas spring (4) to be extended until the downward force disappears to reach the equilibrium state again and to be stationary at the position.
4. A waist and back type portable working tool booster according to claim 1, wherein: the stay cable (3) is sleeved with a wire tube (10), one end of the wire tube (10) is arranged in the upright post (1), the other end of the wire tube extends to the cross beam (5), and the wire tube (10) is provided with a protruding arc section at the joint of the upright post (1) and the cross beam (5).
5. A waist and back type portable working tool booster according to claim 1, wherein: still including accomodating positioning mechanism, accomodate positioning mechanism includes first positioning seat (11), second positioning seat (12) and locating lever (13), first positioning seat (11) sliding connection just slide back on stand (1) with stand (1) locking and fix a position in optional position, second positioning seat (12) sliding connection just slide back on crossbeam (5) with crossbeam (5) locking and fix a position in optional position, locating lever (13) one end articulates at first positioning seat (11), and the other end articulates at second positioning seat (12), in accomodating the state, crossbeam (5) rotate to with stand (1) folding state, first positioning seat (11) slide to the middle part of stand (1) and lock, second positioning seat (12) slide to the outer end of crossbeam (5) and lock, the outer end of crossbeam (5) is fixed on stand (1) through locating lever (13).
6. A waist and back type portable working tool booster according to claim 5, wherein: in the use state, the crossbeam (5) rotates to the state perpendicular with stand (1), first positioning seat (11) slides to the top of stand (1) and locks, second positioning seat (12) slides to be close to the inner of crossbeam (5) and locks, and the top of stand (1) is to the one section of first positioning seat (11), the one section of crossbeam (5) inner to second positioning seat (12) and locating lever (13) form a triangle-shaped this moment, makes locating lever (13) provide a holding power to crossbeam (5).
7. A waist and back type portable working tool booster according to claim 1, wherein: the connecting part of the top of the upright post (1) and one end of the cross beam (5) is provided with a first connector (14) and a second connector (15), the first connector (14) is fixed at the top of the upright post (1), the first connector (14) is provided with an inner hole, two ends of the inner hole are provided with inner gears (14.1), the second connector (15) is provided with three connectors, wherein the two connectors are coaxial and embedded in a through hole of the first connector (14), and the other connector penetrates through a side wall notch of the first connector (14) and is fixed with one end of the cross beam (5); the two connectors are respectively provided with a button (16) in the holes of the two connectors in the through hole of the first connector (14) and are meshed through gears, the outer wall of the button (16) is provided with a circular gear (16.1), and the inside of the button is provided with a spring (17); one end of the spring (17) is propped against the inner hole wall of the button (16), and the other end of the spring is propped against the inner hole wall of the second joint (15);
in the positioning state of the cross beam (5), the buttons (16) enable the outer ends of the circular gears (16.1) at the two ends to be meshed with the corresponding inner gears (14.1) at the same end under the action of the springs (17), the inner ends of the circular gears are meshed with the second inner gears (15.1), at the moment, the second joint (15) and the buttons (16) at the two ends cannot rotate, and at the moment, the cross beam (5) and the upright post (1) are positioned at an angle;
in the angle adjusting state of the cross beam (5), the button (16) is pressed inwards, the pressing spring (17) enables the round gears (16.1) at the two ends to move axially inwards and separate from the inner gear (14.1), at the moment, the cross beam (5) rotates freely, and the round gears (16.1) of the button (16) are always meshed with the second inner gear (15.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111016791.3A CN113771008B (en) | 2021-08-31 | 2021-08-31 | Waist-back type portable operation tool booster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111016791.3A CN113771008B (en) | 2021-08-31 | 2021-08-31 | Waist-back type portable operation tool booster |
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| Publication Number | Publication Date |
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| CN113771008A CN113771008A (en) | 2021-12-10 |
| CN113771008B true CN113771008B (en) | 2023-10-03 |
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| CN202327591U (en) * | 2011-12-08 | 2012-07-11 | 安徽巨一自动化装备有限公司 | Knapsack type labor-saving device of spring balancer |
| CN203843349U (en) * | 2014-01-06 | 2014-09-24 | 山东金鹏钢结构幕墙有限公司 | Mobile double-protection automatic welder |
| US8898862B1 (en) * | 2014-04-29 | 2014-12-02 | Andrew H. McGrath | Push-button, locking hinge assembly |
| JP2018099570A (en) * | 2018-03-28 | 2018-06-28 | 株式会社ダスキン | Double side push button spring-type multistage rotation-type wiper body holding tool, and cleaning tool |
| CN211813109U (en) * | 2020-03-11 | 2020-10-30 | 河南铁福来装备制造股份有限公司 | Rotatory retractable davit |
| CN212503702U (en) * | 2020-06-01 | 2021-02-09 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Movable safety belt hanging point device for aerial work |
| CN212352010U (en) * | 2020-06-04 | 2021-01-15 | 上海阿力智能科技有限公司 | Upper limb negative pressure boosting system |
| CN111969494A (en) * | 2020-08-03 | 2020-11-20 | 安徽送变电工程有限公司 | 4 x 'one pulls 2' stringing coaster stores pylon |
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| CN113771008A (en) | 2021-12-10 |
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