阅读说明：本技术 升降设备及升降系统 (Lifting device and lifting system ) 是由 孟宪博 张庆伟 张国柱 于 2021-08-11 设计创作，主要内容包括：本发明提供一种升降设备及升降系统,升降设备包括升降车体、扶手组件和踏板组件,所述扶手组件和所述踏板组件分别连接于所述升降车体两端；其中,所述扶手组件上设置有控制开关,所述控制开关用于控制升降设备运行；所述升降车体上设置有机械锁止组件,所述机械锁止组件可选择地进行所述升降车体锁止。本发明的安全性高,能够适应各个情况下的机械限位,且升降设备整体结构简单,控制方便,运行稳定可靠。(The invention provides lifting equipment and a lifting system, wherein the lifting equipment comprises a lifting vehicle body, a handrail component and a pedal component, wherein the handrail component and the pedal component are respectively connected to two ends of the lifting vehicle body; the handrail assembly is provided with a control switch, and the control switch is used for controlling the operation of the lifting equipment; and a mechanical locking assembly is arranged on the lifting vehicle body and can selectively lock the lifting vehicle body. The lifting device is high in safety, can adapt to mechanical limiting under various conditions, and is simple in overall structure, convenient to control and stable and reliable in operation.)

1. The lifting equipment is characterized by comprising a lifting vehicle body, a handrail component and a pedal component, wherein the handrail component and the pedal component are respectively connected to two ends of the lifting vehicle body;

the handrail assembly is provided with a control switch, and the control switch is used for controlling the operation of the lifting equipment; and a mechanical locking assembly is arranged on the lifting vehicle body and can selectively lock the lifting vehicle body.

2. The lift device of claim 1, wherein the lift car body comprises a body;

wherein the mechanical locking assembly is located in the body and can penetrate through the body and extend out of the body.

3. The lift device of claim 2, wherein the body is further provided with a guide wheel assembly;

wherein the guide wheel assembly comprises at least one set of guide wheels.

4. The lifting device as claimed in claim 3, wherein the body is provided with an anti-drop assembly on the same side as the guide wheel;

the anti-falling assembly comprises an anti-falling wheel, and the anti-falling wheel is mounted on the body.

5. The lifting device as claimed in claim 2, wherein the body is further provided with escape plates mounted on both sides of the body.

6. The lift device of claim 2, wherein a platform trigger is further mounted on the body, the platform trigger extending outside the body.

7. The lifting device according to claim 1, wherein the mechanical locking assembly comprises a locking seat, a locking pin and a locking spring, the locking seat is provided with a sliding cavity, and the locking pin is connected in the sliding cavity through the locking spring;

wherein, the locking round pin axle can follow through the locking piece the slip chamber pops out to can accomodate in through the unblock piece in the slip intracavity.

8. The lifting device as claimed in claim 7, wherein the locking member comprises a locking button, a locking tongue and a seat body, the locking button and the locking tongue are connected with the seat body, and the seat body is connected with the locking seat;

and a first locking groove is formed in the locking seat, a second locking groove is formed in the locking pin shaft, and the lock tongue penetrates through the first locking groove, is in contact with the second locking groove and locks.

9. The lift device of claim 7, wherein the unlocking member includes an unlocking tab connected to the locking pin by a connector and capable of pulling the locking pin to slide within the sliding cavity to compress the locking spring.

10. The lifting apparatus according to claim 1, wherein the pedal assembly includes a support portion connected to the lifting vehicle body and a step portion connected to the support portion.

11. The lifting apparatus according to claim 10, wherein the tread portion includes a pedal;

the supporting part comprises a supporting plate, a pedal support and a spring element, and the supporting plate is connected to the lower end of the lifting vehicle body; one end of the pedal support is connected to the supporting plate, and the other end of the pedal support is connected to the lower portion of the pedal; two ends of the elastic element are respectively connected to the supporting plate and the pedal support.

12. The lift device of claim 10, wherein the pedal assembly further comprises a sensor positioned between the pedal and the pedal support.

13. The lift device of claim 10, wherein the pedal assembly further comprises a limit assembly including a limit switch and a trigger mechanism that is capable of retracting and touching the limit switch.

14. The lifting device as recited in claim 13, wherein the trigger mechanism includes a limit stop and a scissors structure, the limit stop being disposed parallel to the pedal via the scissors structure;

the scissors structure comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are arranged in a crossed mode through rotating shafts.

15. The lift device of claim 14, wherein the first link and the second link are each arcuate in profile and a tension spring is connected between the first link and the second link.

16. A lifting system comprising a guide rail, a drive means, and a lifting device as claimed in any one of claims 1 to 15;

the lifting equipment is connected to the guide rail, and the driving device drives the steel wire rope to move and drives the lifting equipment to lift and move along the guide rail.

Technical Field

The invention relates to the technical field of climbing devices, in particular to lifting equipment and a lifting system.

Background

The lifting equipment is a low-speed light hoisting machine which utilizes a motor to drive a lifting platform to move up and down along a track arranged on a building or an equipment ladder stand to carry out high-altitude personnel and material conveying operation.

The following problems are found in the use process of the existing lifting equipment:

1) the lifting equipment is easy to shake or suddenly stop in the operation process, so that the stability of the lifting equipment is poor;

2) the switch button of the lifting equipment is unreasonable in arrangement, when the lifting equipment needs to be immediately stopped in case of emergency, an operator needs to firstly ensure the standing safety to touch the emergency stop switch by hand, the use and the operation are very inconvenient, and large potential safety hazards exist;

3) the lifting equipment has the advantages of more dispersed structural design, small structural connection strength and poor stability;

4) the limit protection of the lifting equipment is too limited, and the lifting equipment can only be locked by the instantaneous acceleration of the anti-falling device when falling down rapidly. There are often times when the fall arrest device cannot be opened, thereby rendering the latch ineffective.

Disclosure of Invention

The invention provides a lifting device and a lifting system, which are used for solving at least one technical defect in the prior art and realizing the lifting device with simple structure, convenient operation and high running safety.

In order to achieve the above object, a first aspect of the present invention provides a lifting apparatus, including a lifting vehicle body, a handrail assembly and a pedal assembly, the handrail assembly and the pedal assembly being respectively connected to both ends of the lifting vehicle body;

the handrail assembly is provided with a control switch, and the control switch is used for controlling the operation of the lifting equipment; and a mechanical locking assembly is arranged on the lifting vehicle body and can selectively lock the lifting vehicle body.

According to the lifting device provided by the invention, the lifting vehicle body comprises a body;

wherein the mechanical locking assembly is located in the body and can penetrate through the body and extend out of the body.

According to the lifting equipment provided by the invention, the body is also provided with a guide wheel assembly;

wherein the guide wheel assembly comprises at least one set of guide wheels.

According to the lifting equipment provided by the invention, the anti-falling component is arranged on the body and on the same side of the guide wheel;

the anti-falling assembly comprises an anti-falling wheel, and the anti-falling wheel is mounted on the body.

According to the lifting equipment provided by the invention, the body is also provided with the escape plates, and the escape plates are arranged on two sides of the body.

According to the lifting equipment provided by the invention, the body is also provided with the platform trigger, and the platform trigger extends out of the body.

According to the lifting equipment provided by the invention, the mechanical locking assembly comprises a locking seat, a locking pin shaft and a locking spring, wherein a sliding cavity is formed in the locking seat, and the locking pin shaft is connected into the sliding cavity through the locking spring;

wherein, the locking round pin axle can follow through the locking piece the slip chamber pops out to can accomodate in through the unblock piece in the slip intracavity.

According to the lifting equipment provided by the invention, the locking piece comprises a locking button, a lock tongue and a base body, wherein the locking button and the lock tongue are both connected with the base body, and the base body is connected to the locking base;

and a first locking groove is formed in the locking seat, a second locking groove is formed in the locking pin shaft, and the lock tongue penetrates through the first locking groove, is in contact with the second locking groove and locks.

According to the lifting equipment provided by the invention, the unlocking piece comprises an unlocking pull ring, the unlocking pull ring is connected with the locking pin shaft through a connecting piece and can pull the locking pin shaft to slide in the sliding cavity so as to extrude the locking spring.

According to the lifting device provided by the invention, the pedal assembly comprises a supporting part and a stepping part, the supporting part is connected to the lifting vehicle body, and the stepping part is connected with the supporting part.

According to the lifting device provided by the invention, the treading part comprises a pedal;

the supporting part comprises a supporting plate, a pedal support and an elastic element, and the supporting plate is connected to the lower end of the lifting vehicle body; one end of the pedal support is connected to the supporting plate, and the other end of the pedal support is connected to the lower portion of the pedal; two ends of the elastic element are respectively connected to the supporting plate and the pedal support.

According to the lifting device provided by the invention, the pedal assembly further comprises a sensor, and the sensor is positioned between the pedal and the pedal support.

According to the lifting equipment provided by the invention, the pedal assembly further comprises a limiting assembly, the limiting assembly comprises a limiting switch and a triggering mechanism, and the triggering mechanism can contract and touch the limiting switch.

According to the lifting equipment provided by the invention, the trigger mechanism comprises a limit baffle and a scissor structure, wherein the limit baffle is arranged in parallel with the pedal through the scissor structure;

the scissors structure comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are arranged in a crossed mode through rotating shafts.

According to the lifting equipment provided by the invention, the profiles of the first connecting rod and the second connecting rod are both arc-shaped, and a tension spring is connected between the first connecting rod and the second connecting rod.

In order to achieve the above object, a second aspect of the present invention provides a lifting system comprising a guide rail, a driving device, and the lifting apparatus of any one of the above;

the lifting equipment is connected to the guide rail, and the driving device drives the steel wire rope to move so as to drive the lifting equipment to lift and move along the guide rail

According to the lifting equipment provided by the invention, the control switches are intensively arranged on the handrail components, so that the situation that an operator holds the handrail components with two hands can be restrained, the safety of the operator taking the elevator is improved, and the situation that the operator can directly control the switches (including pressing the emergency stop switch) on the handrail components when encountering an emergency can be ensured, so that accidents caused by the fact that the two hands loosen the handrail components or are far away from the handrail components are avoided, and the use safety of the lifting equipment is improved; meanwhile, the control switch can be effectively prevented from being damaged.

In addition, the lifting vehicle body is simultaneously provided with the anti-falling assembly and the mechanical locking assembly, namely when the lifting equipment is suddenly stalled and falls in the running process, the anti-falling assembly is matched with the guide rail to lock the lifting vehicle body onto the guide rail, so that accidents are avoided, and the safety of the lifting equipment is improved; the mechanical locking assembly can be used as a supplementary assembly of the anti-falling assembly, so that the lifting vehicle body is locked when the anti-falling assembly fails, and safety accidents caused by the failure of the anti-falling assembly are effectively avoided; meanwhile, if the lifting equipment cannot be stopped in time in an emergency situation during ascending, the mechanical locking assembly can perform mechanical locking at any position on the guide rail, so that the running safety of the lifting equipment is higher, and the blank of ascending locking of the lifting equipment is filled.

Further, the present invention provides a lifting system including any one of the above-described lifting devices, and therefore, the lifting system has all the advantages described above.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a lifting device provided in the present invention;

FIG. 2 is a front view of the lift device shown in FIG. 1;

FIG. 3 is a second schematic structural view of the lifting apparatus provided in the present invention;

fig. 4 is a third schematic structural diagram of the lifting device provided by the present invention;

fig. 5 is a schematic structural diagram of a first cover in the lifting device provided by the present invention;

fig. 6 is a partial sectional view of a first cover in the lifting device provided in the present invention;

FIG. 7 is a schematic structural view of a mechanical locking assembly in the lifting device provided by the present invention;

FIG. 8 is a schematic structural view of a pedal assembly in the lifting device provided in the present invention;

fig. 9 is a schematic structural diagram of a first cover in another embodiment of the lifting device provided in the present invention;

reference numerals:

1: lifting the vehicle body; 11: a fall arrest assembly; 12: a mechanical locking assembly;

121: a locking seat; 122: locking the pin shaft; 123: a locking spring;

124: a sliding cavity; 125: a locking button; 126: a latch bolt;

127: a base body; 128: a first locking groove; 129: a second locking groove;

130: unlocking the pull ring; 131: a connecting member; 13: a body;

14: a first cover body; 15: a second cover body; 16: mounting holes;

17: a guide wheel; 18: an anti-drop wheel; 19: an escape plate;

110: a waterproof control box; 111: a battery case; 112: a steel wire rope fixing block;

113: a platform trigger; 2: an armrest assembly; 21: a first armrest;

211: a handrail riser; 212: a handle; 213: an armrest switch;

22: a second handrail; 214: an armrest key; 23: a platform trigger structure;

3: a pedal assembly; 31: a support portion; 311: a support plate;

312: a pedal support; 313: an elastic element; 32: a stepping part;

321: a pedal; 322: a sensor; 323: a limiting component;

3231: a limit switch; 3232: a limit baffle; 3233: a first link;

3234: a second link; 3235: a rotating shaft; 3236: a first connecting seat;

3237: a second connecting seat; 324: a tension spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "first", "second", "third" and "fourth" do not denote any sequence relationship, but are merely used for convenience of description. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. "Current" is the time at which an action is performed, multiple occurrences of which are recorded in real time over time.

An embodiment of the present invention will be described below with reference to fig. 1 to 9. It should be understood that the following description is only exemplary embodiments of the present invention and is not intended to limit the present invention in any way.

First, referring to fig. 1 to 4, a general technical solution of the present invention will be described in detail, and an embodiment of the present invention provides a lifting apparatus, including a lifting vehicle body 1, a handrail assembly 2, and a pedal assembly 3; the handrail component 2 and the pedal component 3 are respectively detachably connected on the lifting vehicle body 1, and the handrail component and the pedal component together form lifting equipment. The lifting vehicle body 1 can be connected on the guide rail in a sliding mode, can move up and down along the extending direction of the guide rail through the traction of the working steel wire rope, and the handrail component 2 and the pedal component 3 move synchronously with the lifting vehicle body 1 to convey articles or move by a single person to carry out high-altitude operation.

The handrail component 2 is provided with a control switch for controlling the lifting device to move up and down on the guide rail, and switching the operation control mode of the lifting device into remote control or controlling the braking of the lifting device under emergency, so that the operation is convenient.

The control switch is arranged on the upper part of the handrail component 2 and on the side opposite to the position contacted with the hand of the operator, so that the risk of damage to the control switch caused by overlarge force applied by the operator can be reduced; simultaneously when jacking or the tenesmus in-process as jacking equipment, avoid operating personnel to cross jacking equipment and step on control switch at the climbing in-process and lead to its damaged risk.

And, control switch must both hands press and can start, loosens arbitrary one hand and stops promptly, leads to the one hand can not start, and then retrains personnel's both hands, makes personnel's both hands of transporting be located handrail component 2 all the time at the jacking equipment operation in-process, avoids transporting personnel one hand and supports and cause the accident.

The lifting car body 1 is provided with a falling prevention assembly 11 and a mechanical locking assembly 12, and the falling prevention assembly 11 is matched with the guide rail to perform falling prevention limiting; the mechanical locking assembly 12 can selectively (including in the case of failure of the fall prevention assembly 11) extend and limit the mechanical locking assembly 12 on the guide rail to realize mechanical limit, so that the braking failure and accidents of the lifting device are avoided, and the safety of the lifting device is further improved.

Compared with the prior art, the control switches are intensively arranged on the handrail assembly 2, so that the control switches not only can restrain an operator from holding the handrail assembly 2 with both hands to improve the safety of the operator when the operator rides the elevator, but also can ensure that the operator can directly control the emergency brake (including pressing the emergency stop switch) of the lifting equipment on the handrail assembly 2 when the operator encounters an emergency, and the occurrence of an accident caused by the fact that both hands release the handrail assembly 2 or are far away from the handrail assembly 2 to touch the switches is avoided, so that the use safety of the lifting equipment is improved.

Meanwhile, the anti-falling assembly 11 and the mechanical locking assembly 12 are arranged on the lifting vehicle body 1, namely when the lifting device suddenly stalls and falls in the running process, the anti-falling assembly 11 is matched with the guide rail to lock the lifting vehicle body 1 onto the guide rail, so that accidents are avoided, and the safety of the lifting device is improved; meanwhile, the mechanical locking assembly 12 can be used as a supplementary assembly of the anti-falling assembly 11, and the lifting vehicle body 1 is locked when the anti-falling assembly 11 fails, so that accidents caused by the failure of the anti-falling assembly 11 are effectively avoided; moreover, if the lifting equipment cannot be stopped in time in an emergency situation in the ascending process, the mechanical locking assembly 12 can perform mechanical locking at any position on the guide rail, so that the operation safety of the lifting equipment is higher, and the blank of ascending locking of the lifting equipment is filled.

Referring to fig. 1 to 4, and fig. 7 and 9 in detail, the lift truck body 1 according to the embodiment of the present invention will be described in detail.

The lift car body 1 includes a shield case, which is a closed case having an accommodating chamber, and the shape of the shield case may be any shape, which is not specifically limited herein. Commonly used shield housings are rectangular or square in shape.

For example, the shield case may be closed by a body 13 and cover bodies, the cross-sectional shape of the body 13 is rectangular, the cover bodies include a first cover body 14 and a second cover body 15, and the first cover body 14 and the second cover body 15 are respectively disposed at two ends of the body 13. Wherein, the handrail assembly 2 is detachably connected to the first cover 14, and the pedal assembly 3 is detachably connected to the second cover 15 or the body 13 close to the second cover 15.

The body 13, the first cover 14 and the second cover 15 may be integrally formed or may be separately formed and fixed together by bolts or other connecting structures.

The first cover 14 is provided with a mounting hole 16 for mounting the armrest assembly 2, or the first cover 14 is provided with a mounting hole 16 for mounting the armrest assembly 2, and the armrest assembly 2 can be screwed or bolted into the mounting hole 16, so that the armrest assembly 2 can be replaced and detached conveniently.

As shown in fig. 1 and 2, the anti-falling assembly 11 and the mechanical locking assembly 12 are both located in the body 13, and an anti-falling groove (not numbered in the figure) and a mechanical locking hole (not numbered in the figure) are formed in one side of the body 13 (i.e. the side close to the guide rail), from which the anti-falling assembly 11 extends out of the body 13, so that when the lifting device stalls and falls down on the guide rail, the anti-falling assembly 11 is clamped on the guide rail to realize braking; mechanical locking subassembly 12 fixed connection is on body 13 to stretch out the outside of body 13 from this mechanical locking hole, when jacking equipment needs the braking, mechanical locking subassembly 12 continues to stretch out outwards, realizes spacingly on the guide rail until the card.

Specifically, the fall arrest assembly 11 is fixedly connected to the body 13, and specifically, may be fixedly connected to the periphery of the fall arrest groove in the body 13 by bolts or screws. The fall protection assembly 11 comprises a centrifugal thrower (not numbered in the figure), a spring (not numbered in the figure) and a tachometer wheel (not numbered in the figure), wherein the centrifugal thrower, the spring and the tachometer wheel together form a centrifugal thrower structure, and when the lifting device stalls and falls down, the centrifugal thrower structure is thrown out and limited on the guide rail.

Anti-falling holes (not shown in the figure) with consistent size and interval are correspondingly distributed on the guide rail, and the centrifugal throwing block is matched with the anti-falling holes to realize limiting; the tachometer wheel is used to measure the lowering speed of the vertically movable vehicle body 1.

Under the normal speed condition, the anti-falling assembly 11 is in a closed state, that is, the centrifugal thrower is accommodated in the anti-falling assembly 11; when the lifting vehicle body 1 moves downwards along the guide rail, the speed measuring wheel rotates along the guide rail and drives the centrifugal throw block of the centrifugal trigger mechanism to rotate, and when the lifting vehicle body 1 stalls and falls, namely the falling speed of the lifting device exceeds a set speed threshold value, the centrifugal throw block of the centrifugal trigger mechanism overcomes the tensile force of the spring to throw outwards, is locked in the anti-falling hole instantly, and locks the lifting device on the guide rail.

As shown in fig. 7, the mechanical locking assembly 12 includes a locking seat 121, a locking pin 122 and a locking spring 123, the locking seat 121 is provided with a sliding cavity 124, and the locking pin 122 is connected in the sliding cavity 124 through the locking spring 123.

The lock mechanism further comprises a locking piece, the locking piece comprises a locking button 125, a lock tongue 126 and a base body 127, the locking button 125 and the lock tongue 126 are movably connected with the base body 127, and the base body 127 is fixedly connected to the locking base 121 through a screw or a bolt.

The locking seat 121 is provided with a first locking groove 128, the locking pin shaft 122 is provided with a second locking groove 129, and the locking bolt 126 passes through the first locking groove 128 and contacts or separates from the second locking groove 129 to realize locking or unlocking functions.

When the mechanical locking assembly 12 needs to start the locking function, the locking button 125 is pressed, the locking button 125 drives the locking tongue 126 to rotate on the seat 127 by a certain angle, so that the locking tongue 126 is separated from the second locking groove 129, the locking pin shaft 122 is ejected out under the thrust of the locking spring 123, the end part of the locking pin shaft 122 is clamped in the anti-falling hole of the guide rail, and the free limiting of the mechanical locking assembly 12 is realized.

In addition, still include the deblocking piece, the deblocking piece includes unblock pull ring 130, and unblock pull ring 130 passes through connecting piece 131 and links to each other with locking round pin axle 122 to can stimulate locking round pin axle 122 to slide extrusion locking spring 123 in locking seat 121. The connecting member 131 may be a rod or a rope, one end of the connecting member 131 is fixedly connected to the unlocking pull ring 130, and the other end of the connecting member 131 is fixedly connected to the locking pin 122, so that the locking pin 122 can move along with the movement of the unlocking pull ring 130.

When the mechanical locking assembly 12 needs to start the unlocking function, the unlocking pull ring 130 is pulled by force, the unlocking pull ring 130 drives the locking pin shaft 122 to slide in the locking seat 121 through the connecting piece 131, the locking spring 123 is squeezed, the end part of the locking pin shaft 122 is pulled out from the anti-falling hole of the guide rail, meanwhile, the unlocking pull ring 130 drives the locking pin shaft 122 to continue sliding in the locking seat 121 through the connecting piece 131, and when the lock tongue 126 and the second locking groove 129 are contacted with each other and clamped in the second locking groove 129, the unlocking action is completed.

The mechanical locking assembly 12 is a locking structure completely independent of the anti-falling assembly 11, so that the defect that the anti-falling assembly 11 cannot be locked when in failure can be overcome, namely, emergency braking can be realized when the lifting equipment is in an accident situation; and the mechanical locking of the lifting equipment in two ascending or descending directions and at any position can be realized, the structure is simple, and the operation is simple and convenient.

In some embodiments, the locking seat 121 and the locking pin 122 may be in a cylindrical, rectangular or various shapes.

The shape of the end of the locking pin 122 can be determined according to the shape of the anti-falling hole formed in the guide rail, and can be any shape or structure with any shape, and the length of the locking pin 122 and the overall length of the mechanical locking assembly 12 can be adjusted accordingly according to the use condition.

In some embodiments, the body 13 is further provided with a guide wheel assembly on the same side as the anti-falling groove (i.e. the side close to the guide rail), and the guide wheel assembly comprises at least one set of guide wheels 17, and when a plurality of sets of guide wheels 17 are provided, the guide wheels 17 are distributed along the height direction of the body 13.

Wherein, leading wheel 17 among the leading wheel subassembly passes through bolted connection respectively on body 13, and leading wheel 17 has "U" type groove, and the guide rail can imbed this "U" type inslot, realizes the guide effect, makes lift automobile body 1 can move along the extending direction of guide rail.

In some embodiments, the body 13 is located on the same side as the guide wheels 17, and an anti-drop assembly is further disposed in the middle of the group of guide wheels 17, and the anti-drop assembly is used for preventing the body 13 from dropping from the guide rail, so that the running stability of the device is further improved.

Specifically, the anti-disengagement assembly passes through bolt fixed mounting on the body 13 of the lifting vehicle body 1, and the anti-disengagement assembly specifically is an anti-disengagement wheel 18, and the anti-disengagement wheel 18 can wholly penetrate into the guide rail. It can be understood like this that anticreep wheel 18 has the race, is provided with on the guide rail with race matched with gliding edge portion, and the race can block on this edge portion to prevent lift automobile body 1 operation in-process roll-off from the guide rail, make the operation of jacking equipment overall structure more stable.

In some embodiments, escape plates 19 are further disposed on both sides of the body 13, and the escape plates 19 are fixedly mounted on both sides of the body 13, and may be fixed by bolts or welding.

The arrangement position and the arrangement number of the escape plates 19 are determined by the height of the body 13; for example, the higher the height of the body 13 is, the greater the number of escape panels 19 provided at both sides of the elevating vehicle body 1 at intervals in the height direction of the elevating vehicle body 1.

The escape plate 19 can ensure that when the lifting device is in an emergency state or when the lifting device stops on the guide rail and cannot operate, people can escape upwards or downwards by adopting three-point contact movement, and the inconvenience of escape caused by the fact that the lifting device is blocked between the people and the ladder stand is avoided, so that the safety of the people is ensured.

In order to further improve the safety of the escape panel 19, an anti-slip layer (not shown) may be provided on the surface of the escape panel 19 to improve the wear resistance of the escape panel 19.

In this embodiment, a waterproof control box 110 is disposed in the body 13, and each control element and a controller are disposed in the waterproof control box 110 for controlling each component of the lifting device.

In some embodiments, a battery box 111 may be fixedly installed on one side or both sides of the body 13 by screws or rivets, and a power supply battery is accommodated in the battery box 111, so that the battery box can be detached and replaced at any time, and required electric energy can be provided for lifting the vehicle body 1.

In this embodiment, a wire rope fixing block 112 is disposed on the first cover 14 for pulling the working wire rope. The working steel wire rope is driven by external force to move on the steel wire rope fixing block 112 and drive the lifting vehicle body 1 to lift and move along the extending direction of the guide rail.

In the present embodiment, in addition to the working wire rope driving the lifting vehicle body 1 to move on the guide rail, the lifting vehicle body 1 may be controlled by any other control method, for example, by a rack and pinion driving method.

As shown in fig. 9, in some embodiments, in order to make the structure of the lift car body 1 more compact, the size of the lift car body is reduced, and the stability of the lift car body is better, the housing of the mechanical locking assembly 12 is integrated on the cable fixing block 112 by means of crushing, and the cable fixing block 112 is integrally formed with the first cover 14 and then fixed on the body 13 by means of screws or bolts.

In some embodiments, a platform trigger 113 is further included, and the platform trigger 113 is located in the body 13, extends out of the body 13 from one side of the guide wheel 17, and extends to the outside of the body 13. When the lifting vehicle body 1 runs upwards or downwards, and the platform trigger 113 is triggered by the platform, an instruction or a signal is sent to a controller of the lifting vehicle body 1, so that the controller controls the lifting vehicle body 1 to slow down and send an alarm, and the original speed is recovered after the lifting equipment safely passes through the platform; in addition, when the lifting vehicle body 1 runs to the uppermost or lowermost limit position, the platform trigger 113 is also triggered to stop the operation of the lifting device.

Referring to fig. 1 and 2 in detail, the armrest assembly 2 in accordance with an embodiment of the present invention will be described in detail.

In the present embodiment, the armrest assembly 2 includes a first armrest 21 (which may be understood as a left armrest) and a second armrest 22 (which may be understood as a right armrest), and the first armrest 21 and the second armrest 22 are respectively connected to the mounting holes 16 preset on the first cover 14.

The first handrail 21 and the second handrail 22 each include a handrail vertical pipe 211 and a handle 212, and one end of the handrail vertical pipe 211 is inserted into the mounting hole 16 and can be fixed by a bolt; alternatively, the mounting hole 16 is provided as a threaded hole, and an external thread is tapped at one end of the handle stem 211, so that the handle stem 211 is screwed into the mounting hole 16, and the other end of the handle stem 211 is a free end to which the handle 212 is mounted.

The handle 212 is provided with an armrest switch 213 and an armrest key 214, wherein the armrest switch 213 includes a gear shift switch and an emergency stop switch, the gear shift switch and the emergency stop switch are respectively fixedly installed in a preset insertion hole on the handle 212 through bolts, and the gear shift switch and the emergency stop switch are arranged on any one of the first armrest 21 and the second armrest 22, so that the armrest switch 213 can be controlled by one hand and the emergency stop switch can be controlled by the other hand during use.

Preferably, the gear shift switch in this embodiment is a three-gear switch, that is, three gears are adjustable, that is, up, down and remote control, and the up, down and remote control gear switching of the lifting device can be realized.

The armrest key 214 is respectively installed on the first armrest 21 and the second armrest 22, and includes a key handle, a key rotating shaft, a key spring, and a key switch, the key handle is rotatably connected to the handle 212 through the key rotating shaft, the key spring is installed between the key handle and the handle 212, and the key switch is installed on the handle 212. Need both hands to press the key handle simultaneously and just can start jacking equipment, loosen arbitrary one-hand and stop promptly, make the unable start-up of one-hand, and then restraint operation personnel's both hands, avoid operation personnel's both hands to loosen handrail assembly to ensure jacking equipment operation safety.

In the working process of the armrest key 214, the key handle is pressed to rotate around the key rotating shaft to trigger the key switch so as to control the operation of the lifting equipment; the key spring can be in a compressed state in the pressing process, and can be reset after the pressing is stopped, so that the key handle is driven to return to the original position.

In the present embodiment, in order to more conveniently embed each component in the handle 212, the handle 212 is configured as two detachably connected parts, namely, a first handle body and a second handle body, and the first handle body and the second handle body can be fixed on the handle stem 211 through bolts or their positioning columns.

In this embodiment, the handrail assembly 2 further includes a platform triggering structure 23, the platform triggering structure 23 is fixedly connected to one of the handrails through a pin, and when the lifting device runs upwards and encounters an obstacle, the platform triggering structure 23 can trigger a switch to stop the lifting device from running, so as to prevent the lifting device from being damaged.

Referring to fig. 3 and 8 in detail, the pedal assembly 3 according to the embodiment of the present invention will be described in detail.

In the present embodiment, the pedal assembly 3 includes a support portion 31 and a stepping portion 32, the support portion 31 is connected to the lift vehicle body 1, and the stepping portion 32 is detachably connected to the support portion 31; in use, a person or an object stands on the tread portion 32.

As shown in fig. 8, in detail, the supporting portion 31 includes a supporting plate 311, a pedal support 312 and an elastic element 313, the supporting plate 311 is connected to the lower end of the body 13 of the lift car body 1, and the supporting plate 311 and the body 13 can be fixedly connected by bolts or directly welded to the body 13.

The cross section of the pedal support 312 is shaped like an "L", and is fixedly connected below the stepping part 32 for lifting the stepping part 32, and one end of the pedal support 312 is rotatably connected to the support plate 311 and can rotate around the connection point with the support plate 311. The rotary connection can be connected through a rotating shaft 3235, or connected through a pin, or hinged, and the specific connection is selected according to the use condition and is not limited specifically.

The other end of the pedal support 312 is fixedly connected to the stepping part 32, one end of the elastic element 313 is movably connected to the support plate 311, and the other end of the elastic element 313 is fixedly connected to the pedal support 312, wherein the elastic element 313 mainly plays a role of assisting support.

Preferably, the elastic element 313 is a power assisting element, and mainly comprises a piston rod, a piston, a sealing guide sleeve, a filler, a pressure cylinder, a joint and the like, wherein the pressure cylinder is a closed cavity, inert gas or oil-gas mixture is filled in the pressure cylinder, and the pressure in the cavity is several times or dozens of times of the atmospheric pressure.

When the pedal 321 is in the unfolded state (i.e. the pedal 321 is laid flat in the working state for the use of people or articles), the elastic element 313 is compressed to the shortest; when the pedal 321 is in the folded and retracted state, the elastic element 313 gradually extends to the longest state as the pedal 321 is gradually lifted up until reaching the limit position, and provides a certain assistance support for the pedal 321.

When the elastic element 313 is in a contracted state, the movement of the piston rod is achieved by means of the pressure difference existing across the piston. The elastic element 313 in this embodiment may use a compression type elastic element 313, which mainly plays a supporting role and has two working positions, i.e. the two working positions are changed to switch the two states of folding and retracting the pedal 321.

Specifically, as shown in fig. 8, the tread portion 32 includes pedals 321 oppositely disposed, and the pedals 321 are disposed along the length direction of the pedal support 312 and can be detachably connected to the pedal support 312 or fixedly connected to the pedal support 312. When the detachable connection mode is adopted, the surface of the connected pedal 321 can be kept flat through countersunk bolts or screw connection; when the fixed connection mode is adopted, the pedal 321 and the pedal support 312 can be welded to form an integral structure, so that the pedal 321 can be converted into the folded state and the retracted state along with the rotation of the pedal support 312.

In order to stabilize the connection of the pedal 321, a plurality of connection points may be formed between the pedal 321 and the pedal support 312, and as shown in fig. 8, both the bottom and the end of the pedal 321 may be fixedly connected to the pedal support 312.

In some embodiments, the pedal 321 may be provided as a whole, or may be provided as two pedals 321, which are referred to as a left pedal and a right pedal, for standing and using the left foot and the right foot of the person, and correspondingly, when the pedals 321 are provided as two independent pedals, the corresponding pedal support 312 and the elastic element 313 also need to be provided as two independent pedals, and the folding or unfolding state of the left pedal and the right pedal is controlled respectively.

In some embodiments, the stepping part 32 further includes a sensor 322, the sensor 322 is installed between the pedal 321 and the pedal support 312 through bolts, a person or an object is located on the pedal 321, and when the pedal 321 is overloaded with a load, the sensor 322 is slightly deformed to realize signal output.

Preferably, the sensor 322 is a weighing sensor, which is in communication connection with the controller, and is capable of converting weight information of objects or people carried on the pedal 321 into an electric signal and transmitting the electric signal to the controller, as an input instruction for the operation of the lifting device, after the load exceeds a set rated load, the lifting device stops operating and gives an audible and visual alarm, and any action of operating the lifting device in an overload state cannot be executed, so that the function of safety protection is achieved.

In some embodiments, the stepping part 32 further includes a limit component 323, the limit component 323 includes a limit switch 3231 and a trigger mechanism, the limit switch 3231 is electrically connected to the controller, the trigger mechanism can be integrally contracted, when the trigger mechanism contacts with a lower obstacle (which may be a platform or a person) and contracts, the trigger mechanism contacts with the limit switch 3231, and the limit switch 3231 transmits an instruction to the controller, so that the controller gives an alarm and controls the lifting device to stop working, thereby realizing the safety protection of the lifting device.

As shown in fig. 8, in particular, the triggering mechanism includes a limit stop 3232, a first connecting rod 3233 and a second connecting rod 3234, wherein the first connecting rod 3233 and the second connecting rod 3234 form a scissors structure after being connected, and the limit stop 3232 is disposed in parallel with the pedal 321 through the scissors structure.

The limiting baffle 3232 is arranged corresponding to the shape and number of the pedals 321, for example, the pedals 321 are of a whole structure, and the limiting baffle 3232 is of a whole structure; when the pedal 321 is separately provided with two sets, the two sets of limiting baffles 3232 are correspondingly provided, and the two sets of limiting baffles 3232 are respectively connected through two sets of trigger mechanisms.

The first connecting rod 3233 and the second connecting rod 3234 are crossed by a rotating shaft 3235; and a first connecting seat 3236 is independently provided on the pedal 321, a second connecting seat 3237 is independently provided on the limit baffle 3232, the first connecting seat 3236 and the second connecting seat 3237 are oppositely provided, and two sets of the second connecting seats 3237 are provided on the limit baffle 3232.

Because the limit baffle 3232 covers the whole pedal 321, compared with the prior art in which the first connecting rod 3233 and the second connecting rod 3234 are directly connected to the limit baffle 3232, the distance between the scissors structures is increased, the scissors structures are widened, and the overall structure is loose and has poor stability. Therefore, in the invention, the connecting seats are independently arranged, so that the distance between the first connecting rod 3233 and the second connecting rod 3234 is reduced, the structure of the scissors fork is more compact, the stability is strong, the rigidity is better, and the folding of the structure of the scissors fork is smoother.

A first end of the first link 3233 is rotatably connected to the first connection seat 3236 by a pin or a bolt, and a second end of the first link 3233 is rotatably connected to one of the second connection seats 3237 by a pin.

A first end of the second link 3234 is pivotally connected to the pedal support 312 via a pin or a bolt, and a second end of the second link 3234 is pivotally connected to another second connecting seat 3237 via a pin.

And a sliding groove (not numbered) is formed on the first connection seat 3236 and one of the second connection seats 3237, and a pin or a bolt is slidably connected in the sliding groove.

When the lifting device transports people or objects downwards, the limit baffle 3232 firstly contacts with obstacles, the limit baffle 3232 stops moving downwards, the first connecting rod 3233 and the second connecting rod 3234 horizontally move in the sliding groove through the pin shaft or the bolt, so that the angle between the two connecting rods is reduced, the vertical acting force is converted into the horizontal acting force, the impact force of the pedal assembly 3 is removed, the buffering effect is achieved, and the safety of the device and the personnel is protected.

Furthermore, when the angle between the two connecting rods is continuously reduced, the limit baffle 3232 triggers the limit switch 3231, so that the lifting device stops running, and a downlink limit effect is achieved.

Specifically, limit switch 3231 may be a micro switch, and a trigger limit function may be implemented by a small mechanical force, so as to ensure safe operation of the lifting device.

It should be noted that the number of the first connecting rods 3233 and the second connecting rods 3234 is set according to the structural size of the limit baffle 3232 and the pedal 321, and may be set as one group or multiple groups, which is not particularly limited.

In addition, in order to make the buffering effect of the trigger mechanism better, a tension spring 324 is connected between the first connecting rod 3233 and the second connecting rod 3234, after the pedal 321 is laid flat, the scissors structure is opened under the action of gravity of the pedal 321, and the tension spring 324 is stretched; after the pedal 321 is retracted, the tension spring 324 can restore the deformation, so that the scissors structure is automatically tightened, and thus, when an operator needs to cross the lifting device to climb, the scissors structure does not need to be separately compressed, and the operation is more convenient.

In addition, the first connecting rod 3233 and the second connecting rod 3234 are curved in external contour, so that the scissors structure is convenient to fold and contract while the appearance is attractive.

In some embodiments, the support plate 311 and the pedal support 312 are made of high-strength steel castings, so that the lifting device has higher rigidity and stability.

The steel casting is flexible in design, has the characteristics of minimum stress concentration coefficient, strongest overall structural performance and the like, and improves the engineering reliability; the mechanical property and the service performance can be selected in a larger range through different heat treatment processes, and the welding performance and the processing performance are good.

As an embodiment, the present invention provides a lifting system comprising a guide rail, a driving device, and the lifting apparatus of any one of the above;

the lifting equipment is connected to the guide rail, and the driving device drives the steel wire rope to move so as to drive the lifting equipment to lift and move along the guide rail.

The invention is characterized in that:

firstly, the control handrail switch 213 is intensively arranged on the handrail assembly 2, so that the control handrail switch 213 can be restrained from holding the handrail assembly 2 with both hands of an operator to improve the safety of the operator when the operator rides the elevator, and the control handrail switch 213 (including pressing the emergency stop switch) can be directly controlled on the handrail assembly 2 by the operator when the operator encounters an emergency, so that accidents caused by the release of the handrail assembly 2 by both hands or the separation from the handrail assembly 2 are avoided, the use safety of the lifting device is improved, and the control switch can be effectively prevented from being damaged.

Secondly, the lifting vehicle body 1 is simultaneously provided with the anti-falling assembly 11 and the mechanical locking assembly 12, namely when the lifting equipment suddenly stalls and falls in the running process, the anti-falling assembly 11 is matched with the guide rail to lock the lifting vehicle body 1 onto the guide rail, so that accidents are avoided, and the safety of the lifting equipment is improved; the mechanical locking assembly 12 can be used as a supplementary assembly of the anti-falling assembly 11, and can lock the lifting vehicle body 1 to stall and fall under the condition that the anti-falling assembly 11 fails, so that safety accidents caused by the failure of the anti-falling assembly 11 are effectively avoided; meanwhile, if the lifting equipment cannot be stopped in time in an emergency situation during ascending, the mechanical locking assembly 12 can mechanically lock any position on the guide rail, so that the running safety of the lifting equipment is higher, and the blank of ascending locking of the lifting equipment is filled.

Moreover, the elastic element 313 and the tension spring 324 are arranged on the pedal assembly 3, so that a better assistance supporting effect can be realized; compared with the sliding damping adopted in the prior art, the elastic element 313 can more conveniently retract the pedal 321.

Because, the way of the slide damper, whether the pedal 321 is raised or the pedal 321 is lowered, the slide damper always has a counter force that hinders the operator; in the invention, the elastic element 313 is arranged, when the pedal 321 is folded, the upward lifting force of an operator and the supporting force provided by the elastic element 313 are in the same direction, so that the power is saved, the power can be provided for folding the pedal 321, and particularly, when the operator needs to avoid danger through a ladder passage in the mid-air in special situations, the sliding damping is more convenient and faster than the sliding damping generally selected at present.

Finally, the invention has more compact structure and smaller volume, and has higher operation stability, higher speed measurement precision and higher overall strength compared with the lifting equipment used at present.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.