CN115258879B

CN115258879B - Lifting device

Info

Publication number: CN115258879B
Application number: CN202210887361.7A
Authority: CN
Inventors: 朱马进; 陶建伟; 张路
Original assignee: Guangzhou Dameng Security Technology Co ltd
Current assignee: Guangzhou Dameng Security Technology Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-09-08
Anticipated expiration: 2042-07-26
Also published as: CN115258879A

Abstract

A lifting device for lifting a climbing frame, the lifting device comprising: a guide rail; the sliding assemblies are slidably connected with the guide rails, and are used for being connected with the climbing frame; and the locking assembly is connected with the sliding assembly, and at least one sliding assembly is locked on the guide rail by the locking assembly when the sliding assembly slides. When a plurality of sliding components in the same lifting device work simultaneously, part of the sliding components are locked, so that the locked sliding components become a supporting point, supporting force is generated on other moving sliding components, the working load of a power device can be reduced, the overall operation stability of the lifting device is enhanced, and the wind resistance of the lifting device is improved.

Description

Lifting device

Technical Field

The application relates to the technical field of engineering machinery, in particular to a lifting device.

Background

The climbing frame is a common structure for transporting personnel and goods in the engineering building field, and generally moves in the air through a lifting device, namely, the climbing frame is connected with a sliding part of the lifting device or is directly connected with the lifting device.

However, in the above manner, only a single power plant drive is provided; when a plurality of climbing frames simultaneously transport personnel or goods on one route, the carrying pressure of the power device is high; particularly, the climbing frame has large volume and is easily influenced by air wind to generate shaking. For a long time, the power device is easy to cause abnormal functions, such as suddenly falling down of the climbing frame, and damages to personnel and goods on the climbing frame.

Disclosure of Invention

The application provides a lifting device, wherein when a single power device drives a plurality of sliding assemblies to move simultaneously on the same route, part of the sliding assemblies are locked, and supporting force is provided for the rest sliding assemblies, so that the working load of the power device is reduced, and the working stability of the lifting device is enhanced.

In a first aspect, embodiments of the present application provide a lifting device for lifting a climbing frame, the lifting device comprising:

a guide rail;

the sliding assemblies are slidably connected with the guide rails, and are used for being connected with the climbing frame;

and the locking assembly is connected with the sliding assembly, and at least one sliding assembly is locked on the guide rail by the locking assembly when the sliding assembly slides.

In the lifting device provided by the application, the locking assembly comprises: at least one pointing element disposed on the rail; the telescopic mechanism is arranged on the sliding assembly and moves back and forth along the guide rail direction together with the sliding assembly; the bolt is arranged on the telescopic mechanism, and when the bolt moves to a hovering position under the action of the telescopic mechanism, the bolt is in limited fit with the fixed point piece, so that the sliding assembly is locked on the guide rail.

In the lifting device provided by the application, the sliding component is provided with the through hole;

the telescopic mechanism is arranged on one side, far away from the guide rail, of the sliding assembly, and the bolt penetrates through the through hole and is in sliding fit with the through hole.

In the lifting device provided by the application, the telescopic mechanism comprises a gland, a connecting piece and a metal elastic piece, wherein the gland is connected with the sliding assembly, the connecting piece is connected with the bolt, a boss is arranged on one side of the connecting piece, which is close to the gland, and corresponds to the gland in position, the metal elastic piece is arranged between the boss and the gland, one end of the metal elastic piece is connected with the gland, and the other end of the metal elastic piece is connected with the boss.

In the lifting device provided by the application, the fixed point piece comprises a fixed point part used for limiting the bolt and a guide part provided with a guide inclined plane, and the guide part guides the bolt to the fixed point part when the sliding assembly slides along the guide rail.

In the lifting device provided by the application, the bolt further comprises a roller, an opening is formed in one end of the bolt opposite to the fixed point piece, and the roller is arranged in the opening.

In the lifting device provided by the application, the opening extends to the peripheral side of the bolt, a first slot edge and a second slot edge are formed on the peripheral side of the bolt, when the bolt is positioned at the hovering position, the first slot edge is positioned close to one side of the hovering position, the second slot edge is positioned far away from one side of the hovering position, the roller is positioned in the first slot edge, and at least part of the roller is positioned outside the second slot edge.

In the lifting device provided by the application, the two side wings of the guide rail are provided with the extension parts, and the sliding assembly moves through the extension parts.

In the lifting device provided by the application, at least one end of the guide rail is provided with the plate, at least part of the plate is connected with the guide rail, and at least part of the plate extends to the outside of the guide rail along the length direction of the guide rail.

In the lifting device provided by the application, the sliding assembly comprises a sleeve and at least four roller groups, the sleeve is provided with a sliding space, the roller groups are arranged in the sliding space, the roller groups are in contact with the extension parts, the sliding assembly slides on the extension parts through the roller groups, and at least one roller group is respectively arranged on the front side and the back side of one extension part.

In the lifting device provided by the application, the pulley block comprises a mounting piece and a pulley, wherein the pulley is arranged on the mounting piece, and the mounting piece is detachably arranged on the sleeve.

According to the lifting device provided by the embodiment of the application, when a plurality of sliding assemblies in the same lifting device work simultaneously, part of the sliding assemblies are locked, so that the locked sliding assemblies become a supporting point, supporting force is generated on other moving sliding assemblies, the working load of a power device can be reduced, the overall operation stability of the lifting device is enhanced, and the wind resistance of the lifting device is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an assembled structure of a lifting device and a climbing frame according to an embodiment of the present application;

fig. 2 is another view schematically illustrating an assembly structure of a lifting device and a climbing frame according to an embodiment of the present application;

fig. 3 is a schematic bottom view of an assembled structure of a lifting device and a climbing frame according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of section B-B of FIG. 3;

fig. 5 is a schematic structural diagram of a lifting device according to an embodiment of the present application without a kit;

fig. 6 is a schematic structural diagram of a lifting device according to an embodiment of the present application;

FIG. 7 is a schematic view of a locking assembly according to an embodiment of the present application;

fig. 8 is an enlarged partial schematic view of fig. 4 a.

Main elements and symbol description:

10. a guide rail; 101. a plate member; 102. an extension; 103. a cavity; 104. a positive side; 105. a back side;

20. a sliding assembly; 201. a kit; 202. a sliding space; 203. a roller skate; 203a, a mounting member; 203b, pulleys; 204. a through hole;

30. a locking assembly; 301. a telescoping mechanism; 301a, gland; 301b, heel; 301c, a connector; 301d, a boss; 301e, metal elastic piece; 301e1, springs; 302. a pointing element; 302a, hover bit; 303. a plug pin; 303a, openings; 303a1, a first slot edge; 303a2, second slot edge; 303b, rollers;

40. and (5) climbing the frame.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

It is to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish identical items or similar items having substantially the same function and effect. For example, the first groove and the second groove are merely for distinguishing between different grooves, and are not limited in order. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

The climbing frame 40 is a common structure for transporting personnel and goods in the engineering construction field, the climbing frame 40 generally moves in the air through a lifting device, namely, the climbing frame 40 is connected with a sliding part of the lifting device, or the climbing frame 40 is directly connected with the lifting device, and all the modes are driven by only a single power device; however, when a plurality of climbing frames 40 simultaneously transport persons or goods on one route, the carrying pressure of the power device is large, particularly, the climbing frames 40 are large in size and are easily affected by wind in the air to shake, and long time, the power device is easily caused to have abnormal functions, so that the climbing frames 40 suddenly drop down to cause harm to the persons and goods on the climbing frames 40.

Therefore, the embodiment of the application provides a lifting device, when a plurality of sliding assemblies 20 in the same lifting device work simultaneously, part of the sliding assemblies 20 are locked, so that the locked sliding assemblies 20 become a supporting point, supporting force is generated for other moving sliding assemblies 20, the working load of a power device can be reduced, the overall operation stability of the lifting device is enhanced, and the wind resistance of the lifting device is improved.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram illustrating an assembly structure of a lifting device and a climbing frame 40 according to an embodiment of the application, and fig. 2 is another schematic diagram illustrating an assembly structure of a lifting device and a climbing frame 40 according to an embodiment of the application. The lifting device is used for lifting the climbing frame 40, when a plurality of sliding assemblies 20 in the same lifting device work simultaneously, one sliding assembly 20 is locked, the locked sliding assembly 20 becomes a supporting point, supporting force is generated on other moving sliding assemblies 20, the lifting device can be more stable when lifting the climbing frame 40, and meanwhile, the influence of wind force on the climbing frame 40 and the lifting device is prevented.

As shown in fig. 1 and 2, a lifting device includes:

a guide rail 10;

at least two sliding assemblies 20, each sliding assembly 20 is slidably connected with the guide rail 10, and each sliding assembly 20 is used for connecting the climbing frame 10;

the locking assembly 30, the locking assembly 30 is connected with the sliding assembly 20, and at least one sliding assembly 20 is locked on the guide rail 10 by the locking assembly 30 when the sliding assembly 20 slides.

In embodiments of the present application that also include a power device, three, five, etc. slide assemblies 20 may be provided. The climbing frame 40 is connected with the sliding component 20, the power device can be arranged on the climbing frame 40, and the power device arranged on the climbing frame 40 is connected with the climbing frame 40 on the same route, so that the power device can directly drive the climbing frame 40 to move; the power device can also be arranged on one sliding component 20 and then connected with the sliding component 20 on the same route, and the climbing frame 40 is moved by pushing the sliding component 20 to move; the power means may not be provided on the creeper frame 40 and the slide assembly 20.

The power device may be a hydraulic machine, a motor, an electric hoist, a chain hoist, or the like, and is preferably a hydraulic machine or a chain hoist.

The chain block is also called a immortal block, a chain block, a jin of chain blocks, a chain block or a chain block, is a simple-to-use and portable manual hoisting machine; the hand chain block is suitable for short-distance lifting of small equipment and cargoes, the lifting weight is generally not more than 10T, the maximum lifting weight can reach 20T, the shell of the hand chain block is made of high-quality alloy steel, the hand chain block is firm and wear-resistant, the safety performance is high, when the hand chain block lifts a heavy object upwards, the hand chain block and the hand chain block rotate clockwise, the hand chain block is pulled anticlockwise during descending, the braking seat is separated from the braking block, the ratchet wheel is static under the action of the pawl, the five-tooth long shaft drives the lifting chain wheel to move in the opposite direction, thereby stably descending the heavy object, the hand chain block generally adopts a ratchet friction plate type one-way brake under the load and can be braked by itself, the pawl is meshed with the ratchet wheel under the action of the spring, so that the brake works safely, and the hand chain block has the characteristics of safety and reliability, simplicity and convenience in maintenance, high mechanical efficiency, small hand chain pulling force, portability, attractive appearance, small size and durability, and the hand chain block is suitable for factories, mines, construction sites, docks, warehouses and the like.

The hand chain hoist rotates by pulling the manual chain and the hand chain wheel, the friction plate ratchet wheel and the brake seat are pressed into a whole to rotate together, the tooth long shaft rotates the plate gear, the tooth short shaft and the spline hole gear, so that the lifting chain wheel arranged on the spline hole gear drives the lifting chain, the weight is lifted stably, the ratchet friction plate type unidirectional brake is adopted, the ratchet friction plate type unidirectional brake can brake automatically under load, the pawl is meshed with the ratchet wheel under the action of the spring, and the brake works safely.

In the embodiment of the present application, at least two climbing frames 40 are simultaneously in a hovering state on the guide rail 10, when the lifting device is operated, one climbing frame 40 positioned below is in a hovering state, the power device starts to lift the climbing frame 40 positioned above the climbing frame, and the locking assembly 30 locks the climbing frame 40 when the power device lifts the climbing frame 40 to a predetermined position. The powerplant then begins to pull up the underlying climbing frame 40 to the new hover position 302a and powerplant recovery is complete. In the moving process of the sliding assemblies 20, one sliding assembly 20 is locked on the guide rail 10 by the locking assembly 30 all the time, so that support is provided for the movement of the other sliding assemblies 20, the load of the power device is reduced, the running stability of equipment is improved, and the wind resistance of the climbing frame 40 and the lifting device in the matched operation is enhanced.

The sliding component 20 can slide on the guide rail 10, and through setting up the guide rail 10, the running stability of elevating gear can be further enhanced, simultaneously make the operation of sliding component 20 more stable quick, the fixed operating line who climbs frame 40 reduces the possibility that climbs frame 40 and surrounding building article bump.

In this embodiment, the guide rail 10 may be mounted on a wall surface of a building by a mounting structure or a welding manner, or may be mounted on a scaffold by a mounting structure or a welding manner, wherein the guide rail 10 may be of a cable type or a rail type; the guide rail 10 may be provided singly or may be formed by combining a plurality of guide rails 10.

As shown in fig. 5 and 6, fig. 5 illustrates a schematic structural diagram of a lifting device omitting a sleeve 201 according to an embodiment of the present application; fig. 6 shows a schematic structural view of a lifting device according to an embodiment of the present application, and fig. 5 and 6 show a structure of a locking assembly 30 according to the present application.

In the present embodiment, as shown in fig. 5 and 6, a locking assembly 30 in the lifting device is used to lock the slide assembly 20 to the guide rail 10.

By providing the locking assembly 30, the slide assembly 20 may be locked such that the slide assembly 20 may rest on the rail 10, the slide assembly 20 resting on the rail 10 to provide a certain supporting force.

For example, the locking assembly 30 may be replaced by an electromagnetic assembly, a part of the electromagnetic assembly is disposed on the sliding assembly 20, and after the electromagnetic assembly is electrified, the sliding assembly 20 may be adsorbed on the guide rail 10, so that the sliding assembly 20 is static on the guide rail 10, and therefore, the locking assembly 30 may be other alternative structures, and only the sliding assembly 20 needs to be adsorbed on the guide rail 10, so that the sliding assembly 20 can bear a certain gravity.

As shown in fig. 7, 8 and 4, fig. 7 and 8 show in detail the specific construction of the locking mechanism of the present application, and in some embodiments, the locking assembly 30 comprises: at least one pointing element 302, provided on the rail 10; a telescopic mechanism 301 provided on the slide assembly 20, the telescopic mechanism 301 reciprocally moving along the direction of the guide rail 10 together with the slide assembly 20; the latch 303 is disposed on the telescopic mechanism 301, and when the latch 303 moves to the hovering position 302a under the action of the telescopic mechanism 301, the latch 303 is in limited engagement with the fixed point 302, so that the sliding assembly 20 is locked on the guide rail 10.

In this embodiment, the fixed point members 302 are disposed in the cavity 103 of the guide rail 10, and there may be a plurality of fixed point members 302, that is, two, three, or seven fixed point members 302 may be regularly arranged with each other, or may be irregularly arranged, or may be disposed as required, or the fixed point members 302 may be a strip structure, a plate structure, a rod structure, or a structure capable of being supported by the pin 303 in a matching manner, so that the fixed point members 302 may be disposed in a hole shape on the guide rail 10, and the pin 303 is directly inserted into the hole, so that the pin 303 cooperates with the fixed point members 302 in the hole shape to lock the sliding assembly 20. Illustratively, the telescopic mechanism 301 may be a hydraulic cylinder, a matching structure of a motor and a gear, and a matching structure of a motor and a rope; the rope or the gear rotates through the rotation of the output shaft of the motor, so that the function of moving the object is realized.

In this embodiment, a plurality of pins 303 may be provided, and a plurality of telescopic structures may be provided, and the number may be determined according to actual needs.

Further, the sliding component 20 is provided with a through hole 204;

the telescopic mechanism 301 is arranged on the side of the slide assembly 20 remote from the guide rail 10, and the plug pin 303 passes through the through-hole 204 and is in sliding fit with the through-hole 204.

Through the arrangement, the plurality of through holes 204 are matched with the bolts 303, so that the movement stability of the telescopic mechanism 301 can be increased, the movement of the telescopic mechanism 301 in the preset direction can be limited, and the matching effect of the bolts 303 connected with the telescopic mechanism 301 and the fixed point piece 302 is enhanced.

As shown in fig. 7, 8 and 4, fig. 7 and 8 show the specific construction of the telescopic mechanism 301 in detail, in some embodiments, the telescopic mechanism 301 includes a gland 301a, a connecting piece 301c and a metal elastic piece 301e, the gland 301a is connected with the sliding assembly 20, the connecting piece 301c is connected with the plug 303, a boss 301d is disposed on one side of the connecting piece 301c near the gland 301a, the boss 301d corresponds to the gland 301a, the metal elastic piece 301e is disposed between the boss 301d and the gland 301a, one end of the metal elastic piece 301e is connected with the gland 301a, and the other end is connected with the boss 301 d.

Further, the connecting piece 301c includes two heel portions 301b, one end of each heel portion 301b is connected with the sliding component 20 through a detachable structure such as a screw, so that the locking component 30 can be conveniently detached and installed, the other end of each heel portion 301b is welded or arranged on the side wall of the pressing cover 301a through a fastener, the pressing cover 301a is of a hollow cylindrical structure with one side open 303a, the inside of the pressing cover 301a is used for accommodating the metal elastic piece 301e, a space is provided for obtaining the metal elastic piece 301e, the connecting piece 301c is of a frame structure, the dead weight of the connecting piece 301c of the frame structure can be reduced, good stability is provided, four corners of the connecting piece 301c are connected with the bolts 303 through screws, and the bolts 303 can be conveniently detached.

The connecting piece 301c is ejected towards the direction of the guide rail 10 under the elastic action of the metal elastic piece 301e, the plug pin 303 moves towards the direction of the guide rail 10, when the sliding assembly 20 moves, the plug pin 303 contacts the fixed point piece 302, and a technician sets one side of the plug pin 303, which is the same as the moving direction of the sliding assembly 20, into an arc shape according to needs, so that the plug pin 303 and the fixed point piece 302 can slide relatively; when it is desired to stop the sliding assembly 20, the latch 303 is in the hover position 302a, the metal elasticity pushes the latch 303 beyond the hover position 302a, the latch 303 is dislocated from the fixed point member 302, and the latch 303 is restrained by the fixed point member 302 and therefore no longer moves in the opposite direction, such that the sliding assembly 20 no longer moves.

As shown in fig. 8, fig. 8 shows a specific configuration of the telescopic mechanism 301 in the present application.

In some embodiments, the metal spring 301e may include a spring 301e1.

In this embodiment, the telescopic metal elastic member 301e may be a bent metal sheet having an expansion force, and the metal sheet is disposed in the pressing cover 301a, and the metal sheet pushes the connecting member 301c toward the guide rail 10.

Referring to fig. 6, fig. 6 is a schematic structural view of a lifting device according to an embodiment of the present application, in which the fixed point member 302 includes a fixed point portion for defining the latch 303 and a guide portion having a guide slope, and the guide portion guides the latch 303 to the fixed point portion when the sliding assembly 20 slides along the guide rail 10, so that the latch 303 can be more easily moved onto the fixed point portion of the fixed point member 302 when the latch 303 comes into contact with the guide portion of the fixed point member 302.

The lifting device provided by the application is provided with two climbing frames 40, namely an upper climbing frame 40 and a lower climbing frame 40, two sliding assemblies 20 and two locking assemblies 30, wherein the upper climbing frame 40 and the lower climbing frame 40 are respectively connected with one sliding assembly 20, the upper climbing frame 40 and the lower climbing frame 40 are respectively provided with one locking assembly 30, the guide rail 10 is connected with a building wall, a stable track is provided for the whole device and is used for lifting the two climbing frames 40, the upper climbing frame and the lower climbing frame 40 are simultaneously in a hovering state, the complete guide rail 10 is formed by splicing a plurality of guide rails 10, a hovering position 302a is arranged on the guide rail, when the sliding assembly 20 moves to the hovering position 302a, a spring 301e1 on the sliding assembly 20 ejects pins 303 at four positions, the pins 303 are just clamped at the hovering position 302a, and the tail ends of the pins 303 are provided with rollers 303b. When the lifting device is operated, one climbing frame 40 positioned below is hovered, the power device starts to lift the climbing frame 40, in the upward movement process of the climbing frame 40, the spring 301e1 in the locking assembly 30 moves back to compress the spring 301e1 when passing through the fixed point piece 302, when the climbing frame 40 is lifted to a preset position by the power device, the spring 301e1 ejects the latch 303 to be clamped on the hovering position 302a again, at the moment, the climbing frame 40 is in a hovering state, the climbing frame 40 is locked on the guide rail 10, the power device starts to lift the climbing frame 40 to a new hovering position 302a, the power device is recovered, in the movement process of the sliding assembly 20, one sliding assembly 20 is always in a locked state, so that the movement of the rest sliding assemblies 20 is supported, the load of the power device is reduced, the running stability of equipment is improved, and the wind resistance when the climbing frame 40 and the lifting device are matched to operate is enhanced.

Further, the fixed point members 302 are disposed in the cavity 103, the fixed point members 302 may be disposed in the cavity 103 at regular intervals, or a plurality of fixed point members 302 with different intervals may be disposed according to the requirement of the actual stop position of the climbing frame 40, and the fixed point portions and the guiding portions of the fixed point members 302 may be plate-shaped structures, or may be various combinations of shapes, or may be integrally formed structures, such as trapezoids and triangles.

In some embodiments, the latch 303 further includes a roller 303b, an opening 303a is formed at an end of the latch 303 opposite to the fixed point 302, the roller 303b is disposed in the opening 303a, when the latch 303 slides, the latch 303 slides on the fixed point 302 through the roller 303b, and when the roller 303b moves on the fixed point 302 and cuts into the fixed point 302, friction force or resistance is smaller, so that the latch 303 is convenient to move, and abrasion is reduced.

In some embodiments, the opening 303a extends to a perimeter side of the latch 303, a first slot edge 303a1 and a first slot edge 303a2 are formed on the perimeter side of the latch 303, the first slot edge 303a1 is located on a side proximate to the hover position 302a when the latch 303 is in the hover position 302a, the first slot edge 303a2 is located on a side distal from the hover position 302a, the roller 303b is within the first slot edge 303a1, and at least a portion of the roller 303b is located outside the first slot edge 303a 2. Through the arrangement, the bolt 303 can enter the fixed point piece 302 area more easily, collision is reduced, the limited matching area of the bolt 303 and the fixed point piece 302 is larger when the bolt 303 is arranged at the hovering position 302a, and the hovering of the climbing frame 40 is more stable through the matching of the bolt 303 and the fixed point piece 302.

Referring to fig. 2, fig. 2 shows a specific structure of the guide rail 10 according to an embodiment of the present application, and in some embodiments, both wings of the guide rail 10 have extensions 102, through which the sliding assembly 20 moves.

In this embodiment, the connection of the sliding assembly 20 to the rail 10 is away from the wall surface by the extension 102, while providing a larger sliding area for the sliding assembly 20.

Further, the extension 102 has a hollow structure, so that the dead weight of the guide rail 10 can be reduced, the pressure of the guide rail 10 to the wall surface or the scaffold can be reduced, and the extension 102 can be provided with a groove, so that the clamping stability of the sliding assembly 20 and the extension 102 can be improved.

Referring to fig. 1, fig. 1 also shows the structure and location of the plate member 101. In some embodiments, both ends of the rail 10 are provided with the plate member 101, at least part of the plate member 101 is connected to the rail 10, and at least part of the plate member 101 extends outside the rail 10 in the length direction of the rail 10.

Through plate 101, can link up a plurality of guide rails 10, form guide rail 10 group, realize climbing frame 40 lift needs at longer distance, can provide connecting piece 301c and screw installation together between the guide rail 10, when not needing the needs of dismantling, can also weld guide rail 10 through connecting piece 301c, can increase the welding area with two guide rails 10 welding through connecting piece 301c, improve guide rail 10 connection steadiness.

Referring to fig. 5 and 6, in some embodiments, the sliding assembly 20 includes a sleeve 201 and at least four roller sets 203, the sleeve 201 has a sliding space 202, the roller sets 203 are disposed in the sliding space 202, the roller sets 203 are in contact with the extension 102, the sliding assembly 20 slides on the extension 102 through the roller sets 203, the front side 104 and the back side 105 of one extension 102 respectively have at least one roller set 203, and the socket 201 is provided with the same number of through holes 204 as the bolts 303, so that the bolts 303 can pass through the sleeve 201 through the through holes 204 to form a restricted fit with the fixed point 302.

Further, the pulley set 203 includes a mounting member 203a and a pulley 203b, the pulley 203b is disposed on the mounting member 203a, and the mounting member 203a is detachably disposed on the sleeve 201. The sleeve 201 rolls on the guide rail 10 through the roller set 203, and the roller set 203 is arranged, so that the friction of the sleeve 201 moving on the guide rail 10 is smaller, and the service lives of the sleeve 201 and the roller set 203 are prolonged.

The lifting device provided by the application is provided with two climbing frames 40, namely an upper climbing frame 40 and a lower climbing frame 40, two sliding assemblies 20 and two locking assemblies 30, wherein the upper climbing frame 40 and the lower climbing frame 40 are respectively connected with one sliding assembly 20, the upper climbing frame 40 and the lower climbing frame 40 are respectively provided with one locking assembly 30, the guide rail 10 is connected with a building wall, a stable track is provided for the whole device and is used for lifting the two climbing frames 40, the upper climbing frame 40 and the lower climbing frame 40 are simultaneously in a hovering state, the whole guide rail 10 is formed by splicing a plurality of guide rails 10, a hovering position 302a is arranged on the guide rail, when the sliding assembly 20 moves to the hovering position 302a, a spring 301e1 on the sliding assembly 20 ejects four pins 303, the pins 303 are just clamped at the hovering position 302a, the tail ends of the pins 303b are respectively matched with two fixed point pieces 302, two limit matching is generated, and compared with single limit matching, and the stability of the climbing frame 40 can be remarkably improved.

When the sliding assembly 20 moves towards one end of the guide rail 10, the roller 303b at the tail end of the plug pin 303 rolls on the fixed point piece 302, and meanwhile, the plug pin 303 is extruded to move outwards of the guide rail, and the spring 301e1 is in a contracted state; when the roller 303b at the end of the latch 303 rolls to the hover position 302a, the spring 301e1 expands to eject the latch 303, and the latch 303 is just caught in the hover position 302a.

When the lifting device is operated, one climbing frame 40 positioned below is in a hovering state, the power device starts to lift the climbing frame 40, in the upward movement process of the climbing frame 40, the spring 301e1 in the locking assembly 30 moves back to compress the spring 301e1 when passing through the fixed point piece 302, when the climbing frame 40 is lifted to a preset position by the power device, the spring 301e1 ejects the latch 303 to be clamped on the hovering position 302a again, at the moment, the climbing frame 40 is in the hovering state, the climbing frame 40 is locked on the guide rail 10, the power device starts to lift the climbing frame 40 to a new hovering position 302a, the recovery of the power device is completed, in the movement process of the sliding assembly 20, one sliding assembly 20 is always in the locked state, the movement of the rest sliding assemblies 20 is supported, the load of the power device is reduced, the running stability of equipment is improved, and the wind resistance when the climbing frame 40 and the lifting device are matched to operate is enhanced.

The lifting device has the advantages of self-locking function, anti-falling function, good stability and high accuracy, and the self-locking and hovering of the device are completed by utilizing the spring structure, so that the lifting device is simple and practical in structure.

The present application is not limited to the above embodiments, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the present application, and these modifications and substitutions are intended to be included in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A lifting device for lifting a climbing frame, comprising:

a guide rail;

the locking assembly is connected with the sliding assembly, and at least one sliding assembly is locked on the guide rail by the locking assembly when the sliding assembly slides;

the locking assembly includes:

at least one pointing element disposed on the rail;

the telescopic mechanism is arranged on the sliding assembly and moves back and forth along the guide rail direction together with the sliding assembly;

the bolt is arranged on the telescopic mechanism, and when the bolt moves to a hovering position under the action of the telescopic mechanism, the bolt is in limited fit with the fixed point piece so as to lock the sliding assembly on the guide rail;

the sliding component is provided with a through hole;

the telescopic mechanism is arranged on one side of the sliding assembly away from the guide rail, and the bolt penetrates through the through hole and is in sliding fit with the through hole;

the telescopic mechanism comprises a gland, a connecting piece and a metal elastic piece, wherein the gland is connected with the sliding assembly, the connecting piece is connected with the bolt, a boss is arranged on one side, close to the gland, of the connecting piece, the boss corresponds to the gland, the metal elastic piece is arranged between the boss and the gland, one end of the metal elastic piece is connected with the gland, and the other end of the metal elastic piece is connected with the boss.

2. The lifting device of claim 1, wherein the fixed point member includes a fixed point portion for defining a latch and a guide portion having a guide slope, the guide portion guiding the latch to the fixed point portion when the slide assembly slides along the guide rail.

3. The lifting device of claim 1, wherein the latch further comprises a roller, an opening is formed in an end of the latch opposite the fixed point member, and the roller is disposed in the opening.

4. A lifting device according to claim 3, wherein the opening extends to a peripheral side of the spigot, a first slot edge and a second slot edge being formed on the peripheral side of the spigot, the first slot edge being located on a side closer to the hover position when the spigot is in the hover position, the second slot edge being located on a side further from the hover position, the roller being within the first slot edge, at least part of the roller being located outside the second slot edge.

5. The lifting device of claim 1, wherein the two side wings of the rail have extensions through which the slide assembly moves.

6. The lifting device of claim 1, wherein at least one end of the rail is provided with a plate, at least a portion of the plate being connected to the rail, at least a portion of the plate extending outside the rail in a rail length direction.

7. The lifting device of claim 6, wherein the sliding assembly comprises a sleeve having a sliding space and at least four roller sets disposed in the sliding space, the roller sets contacting the extension portion, the sliding assembly sliding over the extension portion by the roller sets, the front and back sides of one of the extension portions each having at least one roller set.

8. The lifting device of claim 7, wherein the pulley set comprises a mounting member and a pulley, the pulley being disposed on the mounting member, the mounting member being detachably disposed on the sleeve.