CN108671498B

CN108671498B - Use method of stilt type ascending device

Info

Publication number: CN108671498B
Application number: CN201810508898.1A
Authority: CN
Inventors: 钱佳敏; 屈愉昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-24
Filing date: 2018-05-24
Publication date: 2020-04-14
Anticipated expiration: 2038-05-24
Also published as: CN108671498A

Abstract

In the stilt formula ware of ascending a height of this application, user's left foot, right foot promote elevating gear Z, Y in turn gradually and accomplish the operation of ascending a height, do not need professional skill, use safe and reliable, elevating gear Z, Y adopt X shape scissors fork subassembly as elevating system, and at fold condition elevating gear occupation space little, elevating gear utilizes the manpower as the power that promotes, and the structure is ingenious, light in weight.

Description

Use method of stilt type ascending device

Technical Field

The invention relates to the field of ascending mechanical devices, in particular to a use method of a stilt type ascending device.

Background

In life and production, articles are often required to be taken from a high place, such as climbing operations of picking water and electricity for installation, house decoration, cleaning with wall doors and windows, picking fruits, placing goods on a goods shelf and the like, and generally, a ladder and a lifting platform are used as tools to help people to reach the high place.

When the traditional ladder is used, a long ladder or a short ladder is often selected according to the height of an operation point, under the condition of unconditional selection, the long ladder is often used in a short place, the long ladder is heavy, and the overlong ladder rod hinders the operation and safety of a user. The ladder is too short to reach the working face, and the embarrassment of the operation cannot be completed. The height of the robot is changed when the height of the robot is required in the operation process, and people can climb up and down. If the working position needs to be changed from front to back, left to right, the user can climb down the ladder, and the shoulder levers can work continuously only by lifting the ladder and then climbing up. The physical strength of the user is unnecessarily consumed, the working time is delayed, and the working efficiency is reduced. The ladder and the lifting platform are difficult to move, and the ladder or the lifting platform with the moving function can be moved only by other personnel or external force of a driving mechanism.

The stilts are long rods fixed on two legs of a professional respectively and extend as the legs, the professional can walk by utilizing the stilts, and the stilts can be moved without an external force tool, are lower in requirements on environment compared with the stilts of the ladder, can be used only after long-term training, and can be assisted by other personnel or stand on a high place to form the stilts.

Referring to fig. 1, chinese utility model publication No. CN201981993U discloses a stilt type adjustable ascending and descending ladder, which is composed of two ladder bars that are not connected to each other. The supporting rod of the supporting body is sleeved in the inner diameter of the lifting pipe of the lifting body to form a ladder rod. The support body comprises a support rod and a stabilizer, and the stabilizer consists of a stabilizing plate and a stabilizing foot. The lifting body is composed of a lifting control system, a pedal and a buckle belt, wherein the lifting control system is composed of a lifting pipe, an operating handle, a connecting rod, a spring, a control box, a roller, an elastic sheet and a movable pin.

Referring to fig. 2, chinese patent publication No. CN104627899Z discloses a scissor lift platform, which includes a base 100, a lift mechanism 200, a lift driving mechanism 300, a carrying mechanism 400, and a pressure sensor 500. The base 100 is located at the bottom of the scissor lift, and has 4 mounting holes 101 for facilitating connection to a floor or other equipment. The lifting mechanism 200 is composed of two sets of identical and parallel multi-layer X-shaped lifting components which are correspondingly arranged on two sides of the base 100, the lifting component on the same layer is composed of two connecting rods 201 with middle parts hinged together to enable the lifting component to have a revolute pair, two adjacent layers of lifting components are hinged together through hinge mechanisms arranged at two ends of the connecting rods 201, and one end of one connecting rod 201 in the lifting component on the bottommost layer is hinged with the base 100. The lift drive mechanism 300 is disposed above the base, intermediate the two sets of multi-tiered lift members.

In the technology, users of the stilt type adjustable lifting walking ladder can master balance to finish lifting after long-term training, and meanwhile, the stilt type adjustable lifting walking ladder occupies a large space.

The disadvantages of the scissor lift are: heavy weight, high price, power consumption and small moving range.

Disclosure of Invention

The invention aims to provide a stilt-type climbing device which can be independently operated, is easy to master balance, does not need external power and occupies relatively small space.

In order to achieve the above advantages, the present invention provides a method for using a stilt-type ascending apparatus, comprising: a pair of lifting devices (Z, Y), wherein the lifting devices (Z, Y) comprise a lifting mechanism, a platform, a one-way lifting mechanism and a descending clutch mechanism;

the lifting mechanism consists of two sets of identical and mutually parallel multilayer X-shaped scissors assemblies which are correspondingly arranged on two sides of the platform, the scissors assembly on the same layer consists of two connecting rods with the middle parts hinged together to enable the scissors assemblies to have revolute pairs, the adjacent two layers of scissors assemblies are hinged with each other, one end of one connecting rod in the scissors assembly on the uppermost layer is hinged with the platform, and the end part of the other connecting rod is fixed with a sliding rod;

the platform is provided with a sliding chute corresponding to the sliding rod, and the sliding rod is matched with the sliding chute to enable the upper end of the connecting rod in the uppermost layer of scissor assembly to be close to or far away from the upper end of the other connecting rod in the uppermost layer of scissor assembly, so that the platform is lifted or lowered;

the unidirectional lifting mechanism comprises: the rack is hinged with the sliding rod, the rotating shaft is rotatably connected with the lower surface of the platform, and the one-way gear is sleeved outside the rotating shaft and is meshed with the rack, the one-way gear is used for preventing the platform from descending when the rotating shaft is limited to rotate, and the one-way gear can rotate relative to the rotating shaft only when the platform ascends;

the descending clutch mechanism is used for switching a state that the rotating shaft is limited to rotate relative to the platform and a state that the rotating shaft is allowed to rotate relative to the platform;

the method comprises the following steps: the left foot and the right foot of the user are respectively connected with a lifting device Z, Y;

a user firstly lifts the left foot by using the right foot support, and the lifting device Z is lifted under the action of the one-way lifting mechanism;

the user adjusts the gravity center, and supports and lifts the right foot by the left foot to enable the lifting device Y to be lifted;

the left and right feet are alternately raised to raise the lifting device Z, Y to a suitable height.

Preferably, the descending clutch mechanism includes: the first elastic retaining part is used for retaining the pressure between the first clutch plate and the rotary plate so as to limit the rotation of the rotary shaft, and the hand brake is used for pulling the first clutch plate through the first brake wire so as to change the pressure between the first clutch plate and the rotary plate and adjust the friction force between the first clutch plate and the rotary plate so as to control the descending speed of the platform.

Preferably, the lifting device further comprises a speed reduction limiting mechanism, and the speed reduction limiting mechanism further comprises an annular groove formed in the turntable and a swing arm hinged with the platform;

the inner side wall of the annular groove is provided with a protrusion extending away from the rotating shaft, and the outer side wall of the annular groove is provided with a locking notch;

the swing arm is provided with an end post accommodated in the annular groove, and the end post is attached to the inner side wall of the annular groove;

the protrusion is used for extruding the end post into the locking notch when the platform descends at an excessively high speed so as to limit the rotation of the turntable.

Preferably, the lifting device further comprises a height-maintaining hand brake mechanism, the height-maintaining hand brake mechanism comprises a second clutch plate, a second brake cable and a hand brake, and the hand brake is used for enabling the second clutch plate to press the rack by pulling the second clutch plate so as to limit the rack to move.

Preferably, the deceleration limiting mechanism further comprises a second elastic holding portion for holding the end post in contact with an inside side wall of the annular groove.

Preferably, the platform is fixed with a fixing strap for fixing feet.

Preferably, the platform is provided with a sliding guide part, and the rack is provided with a guide matching part corresponding to the sliding guide part.

Preferably, the opening direction of the locking notch is opposite to the rotation direction of the turntable in the descending process of the platform.

Preferably, the one-way ascending mechanism and the descending clutch mechanism are positioned between two sets of parallel scissor assemblies.

Preferably, the scissor assembly and the platform of the lifting mechanism are made of aluminum alloy or carbon fiber materials.

Preferably, the lifting device further comprises a speed reduction limiting mechanism, and the speed reduction limiting mechanism further comprises an annular groove formed in the turntable and a swing arm hinged with the platform; the inner side wall of the annular groove is provided with a protrusion extending away from the rotating shaft, and the outer side wall of the annular groove is provided with a locking notch; the swing arm is provided with an end post accommodated in the annular groove, and the end post is attached to the inner side wall of the annular groove; the protrusion is used for extruding the end post into the locking notch when the platform descends at an excessively high speed so as to limit the rotation of the turntable.

Preferably, the platform is fixed with a fixing strap for fixing feet.

In the stilt formula ware of ascending a height of this application, user's left foot, right foot can promote elevating gear Z, Y in turn gradually and accomplish the operation of ascending a height, do not need professional skill, use safe and reliable, and elevating gear Z, Y adopt X-shaped scissors fork subassembly as elevating system, and at fold condition elevating gear occupation space little, elevating gear utilizes the manpower as the power that promotes, and the structure is ingenious, light in weight.

Drawings

Fig. 1 is a schematic structural diagram of a conventional ascending device.

Fig. 2 is a schematic structural view of a stilt-type riser according to a first embodiment of the present invention.

Fig. 3 is a schematic structural view of a lifting device of the stilt-type riser of fig. 2.

Fig. 4 shows an exploded view of the lifting device of fig. 3.

Fig. 5 is an enlarged view of fig. 2 at a.

Fig. 6 is an enlarged view of fig. 3 at B.

Fig. 7 is an enlarged view of fig. 4 at C.

Fig. 8 is an enlarged view of fig. 4 at D.

Fig. 9 is a schematic structural view of a first clutch plate of the lifting device of fig. 6.

Fig. 10 is a schematic structural view of a swing arm of the lifting device of fig. 6.

Fig. 11 is a schematic diagram of a deceleration limiting mechanism of the lifting device of fig. 6.

Fig. 12 is a schematic structural view of a second clutch plate of the lifting device in fig. 6.

Fig. 13 is a schematic view of a second clutch plate of the lifting device of fig. 12.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be provided with reference to the accompanying drawings and preferred embodiments for describing specific embodiments, structures, features and effects thereof.

Referring to fig. 1, a stilt-type ascending apparatus according to a first embodiment of the present invention includes: a pair of lifting devices Z and Y corresponding to the left foot and the right foot of the user.

Referring to fig. 2-13, the lifting devices Z, Y respectively include a lifting mechanism 1, a platform 2, a one-way lifting mechanism 3, a descending clutch mechanism 4, a deceleration limiting mechanism 5, a height maintaining hand brake mechanism 6, and a handle 7. The scissor assembly 10 and the platform 2 of the lifting mechanism 1 are made of aluminum alloy or carbon fiber materials. The one-way lifting mechanism 3 and the falling clutch mechanism 4 are positioned between two sets of parallel scissor assemblies 10.

Referring to fig. 4, the lifting mechanism 1 is composed of two sets of identical and parallel multiple layers of X-shaped scissors assemblies 10 correspondingly arranged on two sides of the platform 2, each scissors assembly 10 on the same layer is composed of two connecting

rods

101 and 102 with middle parts hinged together to form a revolute pair, the adjacent two layers of scissors assemblies 10 are hinged to each other, one end of one connecting rod 101 in the uppermost scissors assembly 10 is hinged to the platform 2, and a sliding rod 103 is fixed at the end part of the other connecting rod 102.

Referring to fig. 4 and 8, the platform 2 is provided with a sliding slot 20 corresponding to the sliding rod 103, and the sliding rod 103 and the sliding slot 20 cooperate to enable the upper end of the connecting rod 101 to approach or separate from the upper end of the other connecting rod 102, so as to enable the platform 2 to ascend or descend. The platform 2 is fixed with a fixing strap 21 for fixing feet. The platform 2 is provided with a slide guide portion 22, and the rack 31 has a guide engagement portion 311 corresponding to the slide guide portion 22.

The platform 2 includes a rotating shaft base 23 corresponding to the rotating shaft 31, a first guide bar mounting plate 24 corresponding to the first guide bar 420, a swing arm mounting base 25 corresponding to the swing arm, and a second guide bar mounting hole 26 corresponding to the second guide bar 610 opened in the guide portion 22. The second guide bar 610 is coupled to the second guide bar mounting hole 26. An adjusting nut is threadedly coupled to an end of the second guide rod 610, and the adjusting nut can adjust a compressed amount of the third elastic holder.

Referring to fig. 6 and 7, the one-way lifting mechanism 3 includes: the platform comprises a rack 31 hinged with the sliding rod 103, a rotating shaft 32 connected with the lower surface of the platform 2 in a rotating mode, and a one-way gear 33 sleeved outside the rotating shaft 32, wherein the one-way gear 33 is meshed with the rack 31, the one-way gear 33 is used for preventing the platform 2 from descending when the rotating shaft 32 is limited to rotate, and the one-way gear 33 can rotate relative to the rotating shaft 32 only when the platform 2 ascends.

Referring to fig. 2, 5-7, and 9, the descent clutch mechanism is used to switch between a state in which the rotation of the rotary shaft 32 is restricted with respect to the platform 2 and a state in which the rotation of the rotary shaft 32 is allowed with respect to the platform 2. The descending clutch mechanism includes: a rotating disc 41 fixedly connected with the rotating shaft 32, a first clutch plate 42 used for being matched with the rotating disc 41, a first elastic holding part 43, a hand brake 44, a first brake cable 45 and a first brake cable sleeve 46 sleeved outside the first brake cable 45. First guide rod 420 is fixed to first clutch plate 42, and an adjustment nut is fixed to an end of first guide rod 420, and the amount of compression of the first elastic holding portion can be adjusted by the adjustment nut. The first elastic holding portion 43 is a spring fitted around the guide rod 420. First elastic holding portion 43 is used for holding the pressure between first clutch plate 42 and rotating disc 41 to limit rotation of rotating shaft 32, and hand brake 44 is used for pulling first clutch plate 42 through first brake cable 45 to change the pressure between first clutch plate 42 and rotating disc 41 to adjust the friction force between first clutch plate 42 and rotating disc 41 to control the descending speed of platform 2.

The hand brake 44 is identical in structure and principle to the hand brake of the bicycle. The hand brake 44 includes a hand brake base 441 fixed to the handle 7 and a hand brake lever 442, the first brake cable sleeve 46 is positioned between the hand brake base 441 and the platform 2, the middle portion of the hand brake lever 442 is hinged to the hand brake base 441, and the end portion of the hand brake lever 442 is connected to the first brake cable 45.

Referring to fig. 6, 10 and 11, the deceleration limiting mechanism includes an annular groove 51 formed on the turntable 41, a swing arm 52 hinged to the platform 2, and a second elastic holding portion 53. The inner side wall 511 of the annular groove 51 is provided with a projection 511a extending away from the rotating shaft 32, and the outer side wall 512 of the annular groove 51 is provided with a locking notch 512 b; the swing arm 52 is provided with an end post 521 accommodated in the annular groove 51, and the end post 521 is attached to the inner side wall 511 of the annular groove 51; the protrusion 511a is used to press the end post 521 into the locking notch 512b when the platform 2 is lowered too fast, so as to limit the rotation of the turntable 41. The second elastic holding portion 53 is a torsion spring, and the second elastic holding portion 53 serves to hold the end post 521 in contact with the inner side wall 511 of the annular groove 51. The locking notch 512b is opened in the opposite direction to the direction in which the turntable 41 rotates during the lowering of the platform 2. In other embodiments, the second resilient retaining portion may not be provided, and the swing arm may be hinged to the platform at a suitable location, the swing arm using gravity to engage the end post with the inboard side wall 511.

Please refer to fig. 5, 6, 12, and 13, the height-maintaining hand brake mechanism includes a second clutch plate 61, a second brake cable 62, a hand brake 63, a second brake cable sleeve 64 sleeved outside the second brake cable 62, and a third elastic portion 65. The handbrake 63 is used to restrict the rack 31 from moving by pulling the second clutch plate 61 to make the second clutch plate 61 press the rack 31, preferably the surface of the second clutch plate 61 facing the rack 31 has teeth to engage with the rack 31. The third elastic portion 65 is located between the stage 2 and the second clutch plate 61, and the second clutch plate 65 is for keeping the second clutch plate 61 separated from the rack 31, and has a through hole corresponding to the second guide rod 610.

The hand brake 63 comprises a hand brake seat 631 fixed to the handle 7, a hand brake lever 632, and a retaining buckle 633 hinged to the handle 7. The hand brake lever 632 has a hook-shaped end portion engageable with the retaining buckle 633, the second brake cable sleeve 64 is disposed between the hand brake base 631 and the platform 2, the middle portion of the hand brake lever 632 is hinged to the hand brake base 631, the end portion of the hand brake lever 632 is connected to the second brake cable 62, and the retaining buckle 633 is used for maintaining the second clutch plate 61 to press the rack 31 by maintaining the position of the hand brake lever 632.

The stilt-type ascending device of the present embodiment is used as follows, but not limited thereto:

the left foot and the right foot of the user are respectively connected with the lifting device Z, Y through the fixing belts 21.

The connection between the retaining buckle 633 of the lifting device Z, Y and the hand brake handle 632 is released, and the second clutch plate 61 is separated from the rack 31 under the action of the third elastic part;

a user firstly lifts the left foot by using the right foot support, and the lifting device Z is lifted under the action of the one-way lifting mechanism 3;

lifting the left foot and the right foot alternately to enable the lifting device Z, Y to rise to a proper height, operating the hand brake handle 632 of the lifting device Z, Y and using the retaining buckle 633 to keep the position of the hand brake handle 632, and locking the height of the lifting device Z, Y; the user can walk like "walking on a stilt" with his legs standing on the lifting devices Z, Y.

When the vehicle descends, the user firstly releases the connection between the retaining buckle 633 of the lifting device Z, Y and the hand brake handle 632, and the second clutch plate 61 is separated from the rack 31 under the action of the third elastic part; the user operates the hand brake handle to reduce the pressure between the first clutch plate 42 and the rotating disk 41 to control the rotating speed of the rotating shaft 32 to slowly descend; when the descending speed is too fast, the end column 521 is squeezed into the locking notch 512b by the protrusion 511a to limit the rotation of the turntable 41, at this time, if the mutual limitation of the end column 521 by the locking notch 512b needs to be released, the platform needs to be lifted to separate the end column 521 from the locking notch 512b, and the end column 521 is attached to the inner side wall under the action of the second elastic part;

when the lift Z, Y is fully retracted, the user operates the handbrake handle 632 of the lift Z, Y and holds the handbrake handle 632 in position using the retaining buckle 633, locking the height of the lift Z, Y.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method of using a stilt riser, the stilt riser comprising: a pair of lifting devices (Z, Y), wherein the lifting devices (Z, Y) comprise a lifting mechanism, a platform, a one-way lifting mechanism and a descending clutch mechanism;

the method comprises the following steps: the left foot and the right foot of the user are respectively connected with a lifting device Z, Y; a user firstly lifts the left foot by using the right foot support, and the lifting device Z is lifted under the action of the one-way lifting mechanism;

2. The method of using a stilt ladder according to claim 1, wherein the descent clutch mechanism comprises: the brake comprises a rotary disc fixedly connected with the rotary shaft, a first clutch plate matched with the rotary disc, a first elastic retaining part, a hand brake and a first brake cable, wherein the first elastic retaining part is used for retaining the pressure between the first clutch plate and the rotary disc so as to limit the rotation

The hand brake is used for changing the pressure between the first clutch plate and the rotary disc by pulling the first clutch plate through the first brake cable so as to adjust the friction force between the first clutch plate and the rotary disc and control the descending speed of the platform.

3. The use method of the stilt-type ascender according to claim 2, wherein the lifting device further comprises a deceleration limiting mechanism, the deceleration limiting mechanism further comprising an annular groove formed in the turntable and a swing arm hinged to the platform;

4. The use method of the stilt-type ascender according to claim 1, wherein the lifting device further comprises a height-maintaining hand brake mechanism including a second clutch plate, a second brake cable, a hand brake for restricting the movement of the rack by pressing the second clutch plate against the rack by pulling the second clutch plate.

5. A method of using the stilt ladder of claim 3, wherein the deceleration limiting mechanism further comprises a second resilient retaining portion for retaining the end post in contact with an inside side wall of the annular groove.

6. The method of using a stilt ladder according to claim 1, wherein a fixing band for fixing a foot is fixed to the platform.

7. The use of the stilt ladder according to claim 1, wherein the platform is provided with a slide guide, and the rack has a guide engagement portion corresponding to the slide guide.

8. The use of the stilt ladder as claimed in claim 3, wherein the locking notch is opened in a direction opposite to a direction in which the turntable is rotated during the descent of the platform.

9. A method of using a stilt ladder as claimed in claim 1, wherein the one-way raising mechanism and the lowering clutch mechanism are located between two sets of scissor assemblies in parallel.

10. A method of using a stilt ladder as claimed in any one of claims 1 to 9, wherein the scissor assembly of the lifting mechanism, the platform, is made of aluminium alloy or carbon fibre material.