Working platform and high-altitude operation equipment

Abstract

The utility model discloses an operation platform and high-altitude operation equipment. The operation platform comprises a platform base; the folding base is provided with an upper supporting rod assembly and a connecting rod assembly, the top end of the connecting rod assembly is rotationally connected with the upper supporting rod assembly, and the bottom end of the connecting rod assembly is rotationally connected with the top end of the platform base; the folding locking device comprises a limiting block and a sliding clamping sleeve, the limiting block is arranged on the connecting rod assembly, the sliding clamping sleeve is movably arranged on the upper supporting rod assembly, and a limiting groove allowing part of the limiting block to stretch in is formed in the sliding clamping sleeve; in the state that part of the limiting blocks extend into the limiting grooves, the folding base is vertically supported on the platform base; and in the state that the limiting blocks retreat from the limiting grooves, the folding bases are folded on the platform base in a lodging mode. The working platform has the advantages of being simple in structure, convenient to fold and short in folding time.

Description

Technical Field

[0001] This application belongs to the technical field of aerial work equipment, and particularly relates to a working platform and an aerial work equipment. Background Art

[0002] Aerial work equipment (such as an aerial work vehicle) is a main load-bearing equipment for modern aerial work, which can be used by workers or carry materials for lifting. When the aerial work platform enters indoor work, it needs to pass through a door frame or an elevator door, and in some cases, it is necessary to reduce the overall height of the machine to achieve this. The folding method of the guardrail of the working platform on the existing aerial work equipment is piecewise folding, and when folding, it folds inward in order from low to high according to the position of the guardrail hinge points. The guardrail needs to be folded strictly in accordance with the established order, otherwise the whole machine cannot be lowered to the required height due to interference between the guardrails. In addition, the above folding method also has the disadvantages of long time consumption and inconvenient operation. Summary of the Utility Model

[0003] The purpose of this application is to provide a working platform and an aerial work equipment, and the working platform has the advantages of simple structure, easy folding and short folding time.

[0004] To achieve the above purpose, the first aspect of this application provides a working platform, which includes:

[0005] A platform base;

[0006] A folding base, on which there is an upper strut assembly and a connecting rod assembly. The top end of the connecting rod assembly is rotatably connected to the upper strut assembly, and the bottom end of the connecting rod assembly is rotatably connected to the top end of the platform base;

[0007] A folding locking device, including a limit block and a sliding sleeve. The limit block is arranged on the connecting rod assembly, the sliding sleeve is movably arranged on the upper strut assembly, and a limit groove is formed on the sliding sleeve for part of the limit block to extend into;

[0008] Wherein, in the state where part of the limit block extends into the limit groove, the folding base stands upright and supports on the platform base; in the state where the limit block withdraws from the limit groove, the folding base lies down and folds on the platform base.

[0009] In an embodiment of this application, the folding locking device further includes a locking member arranged on the sliding sleeve and used to lock the sliding sleeve at a preset position on the upper strut assembly. In the state where the sliding sleeve is locked at the preset position, the limit block withdraws from the limit groove.

[0010] In an embodiment of this application, the limit block includes an outward expanding limit portion and an extending portion arranged on one side of the outward expanding limit portion and capable of extending into the limit groove. The outward expanding limit portion is used to limit the moving distance of the sliding sleeve in the direction close to the connecting rod assembly.

[0011] In an embodiment of the present application, a limiting hole is formed at a preset position on the upper support rod assembly, a connecting hole capable of communicating with the limiting hole is formed on the sliding sleeve, and the locking member includes:

[0012] A lock seat portion is disposed on the sliding sleeve and is perpendicular to the sliding sleeve. An accommodation cavity is formed inside the lock seat portion and is distributed axially and communicates with the connecting hole;

[0013] A handle portion is disposed on a side of the lock seat portion away from the sliding sleeve;

[0014] A lock pin portion is movably inserted into the accommodation cavity and is connected to the handle portion. A locking end capable of passing through the connecting hole and extending into the limiting hole is formed at an end of the lock pin portion away from the handle portion.

[0015] In an embodiment of the present application, the number of platform bases is multiple, and the multiple platform bases include a first platform base and a second platform base; the number of folding bases is multiple, and the multiple folding bases include a first folding base and a second folding base; the working platform includes a fixed platform and an extending platform that is embedded in the fixed platform and can reciprocate along the length direction of the platform. The first platform base and the first folding base are formed on the fixed platform, the first folding base is disposed on the top of the first platform base, the second platform base and the second folding base are formed on the extending platform, the second folding base is disposed on the top of the second platform base, and folding locking devices are provided on both the first folding base and the second folding base.

[0016] In an embodiment of the present application, both the first folding base and the second folding base include:

[0017] An upper guardrail module, the bottom of the upper guardrail module has an upper support rod assembly distributed vertically;

[0018] A connecting rod assembly, the top end of the connecting rod assembly is rotatably connected to the upper support rod assembly, the bottom end of the connecting rod assembly of the fixed platform is rotatably connected to the top end of the first platform base, the bottom end of the connecting rod assembly of the extending platform is rotatably connected to the top end of the second platform base. In a state where a part of the limiting block extends into the limiting groove, the connecting rod assembly is distributed vertically; in a state where the limiting block withdraws from the limiting groove, the connecting rod assembly is distributed horizontally.

[0019] In an embodiment of the present application, the upper guardrail module further includes an upper frame, the upper support rod assembly includes a plurality of upper support rods distributed vertically and located at the four corner positions at the bottom of the upper frame, the connecting rod assembly includes a plurality of connecting rods, the top ends of the plurality of connecting rods are rotatably connected to the plurality of upper support rods one by one, the limiting block is disposed on the side wall of the connecting rod, and the sliding sleeve is sleeved outside the upper support rod and can move along the axial direction of the upper support rod.

[0020] In an embodiment of the present application, the working platform further includes a synchronous connection device for connecting the first folding base and the second folding base.

[0021] In an embodiment of the present application, the synchronous connection device includes:

[0022] A first limiting plate, disposed on the top of the upper frame of one of the fixed platform and the extension platform;

[0023] A second limiting plate, disposed at the bottom of the upper frame where the first limiting plate is located. A limiting slot penetrating along the length direction of the fixed platform and the extension platform is formed between the first limiting plate and the second limiting plate. The limiting slot is used to clamp a part of the upper frame of the other of the fixed platform and the extension platform.

[0024] The second aspect of the present application provides an aerial work equipment, which includes the above-mentioned working platform.

[0025] As can be seen from the above technical solutions, the working platform includes a platform base, folding bases and a folding locking device. The folding bases are provided with upper support rod assemblies and connecting rod assemblies. The top end of the connecting rod assembly is rotatably connected to the upper support rod assembly, and the bottom end of the connecting rod assembly is rotatably connected to the top end of the platform base; the folding locking device includes a limiting block and a sliding sleeve. The limiting block is disposed on the connecting rod assembly, and the sliding sleeve is movably disposed on the upper support rod assembly. A limiting slot is formed on the sliding sleeve for part of the limiting block to extend into. Among them, in the state where part of the limiting block extends into the limiting slot, the folding base stands upright and supports on the platform base; in the state where the limiting block withdraws from the limiting slot, the folding base lies down and folds on the platform base. This working platform can conveniently realize the state conversion, reduces the time consumed for the state conversion of the working platform, and increases the usage experience of the working platform.

[0026] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation to the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0028] Figure 1 It is the first structural schematic diagram of the working platform in the embodiment of the present application (the working platform is in the extended state);

[0029] Figure 2 It is the first structural schematic diagram of the working platform in the embodiment of the present application (the working platform is in the non-folded state);

[0030] Figure 3 This is the first structural schematic diagram of the working platform in the embodiment of the present application (the working platform is in a folded state);

[0031] Figure 4 This is the structural schematic diagram of the fixed platform in the embodiment of the present application;

[0032] Figure 5 This is the structural schematic diagram of the extension platform in the embodiment of the present application;

[0033] Figure 6 This is the schematic diagram showing the upper support rod and the connecting rod being locked in the embodiment of the present application;

[0034] Figure 7 This is the schematic diagram showing the upper support rod and the connecting rod being unlocked in the embodiment of the present application;

[0035] Figure 8 This is the schematic diagram showing the upper support rod and the connecting rod being locked in the embodiment of the present application (partially cut away);

[0036] Figure 9 This is the schematic diagram showing the upper support rod and the connecting rod being unlocked in the embodiment of the present application (partially cut away).

[0037] Explanation of reference numerals

[0038] 1 - Fixed platform; 101 - First base; 2 - Extension platform; 201 - Lower guardrail module; 2011 - Vertical rod; 2012 - First crossbar; 2013 - Second crossbar; 2014 - Guardrail assembly; 202 - Connecting rod assembly; 2021 - Connecting rod; 203 - Upper guardrail module; 204 - Upper support rod assembly; 2041 - Upper support rod; 2042 - Limiting hole; 205 - Upper frame; 2051 - Longitudinal rod; 2052 - Third crossbar; 2053 - Fourth crossbar; 206 - Lower frame; 207 - Lower support rod; 2071 - Accommodating groove; 208 - Second base; 3 - Folding locking device; 301 - Limiting block; 3011 - Outer expanding limiting part; 3012 - Inserting part; 302 - Sliding sleeve; 303 - Limiting groove; 304 - Locking part; 3041 - Lock seat part; 3042 - Handle part; 3043 - Lock pin part; 3044 - Locking end; 4 - Synchronous connection device; 401 - First limiting plate; 402 - Second limiting plate; 403 - Limiting card slot; 404 - First protective pad; 405 - Second protective pad; 5 - First platform base; 6 - Second platform base; 7 - First folding base; 8 - Second folding base. Detailed implementation manners

[0039] The following will describe in detail the specific embodiments of the present application with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present application, and are not intended to limit the present application.

[0040] An embodiment of the present application provides a working platform, which includes:

[0041] A platform base;

[0042] A folding base, on which there are an upper strut assembly 204 and a connecting rod assembly 202. The top end of the connecting rod assembly 202 is rotatably connected to the upper strut assembly 204, and the bottom end of the connecting rod assembly 202 is rotatably connected to the top end of the platform base;

[0043] A folding locking device 3, including a limit block 301 and a sliding sleeve 302. The limit block 301 is arranged on the connecting rod assembly 202, the sliding sleeve 302 is movably arranged on the upper strut assembly 204, and a limit groove 303 is formed on the sliding sleeve 302 for part of the limit block 301 to extend into;

[0044] Wherein, in the state where part of the limit block 301 extends into the limit groove 303, the folding base stands upright on the platform base; in the state where the limit block 301 withdraws from the limit groove 303, the folding base lies down and folds on the platform base.

[0045] Specifically, the working platform in this embodiment is applicable to aerial work equipment, where the aerial work equipment includes, but is not limited to, scissor lift platforms, articulated boom platforms, straight boom platforms, vehicle-mounted aerial work platforms, spider lift platforms, and mast boom platforms. The limit block 301 is arranged on the longitudinal side wall of the connecting rod assembly 202. The limit groove 303 is U-shaped and has a downward opening. The operator can apply force to make the sliding sleeve 302 slide downward along the upper support rod assembly 204 until part of the limit block 301 is inserted into the limit groove 303. The sliding sleeve 302 simultaneously clamps the upper support rod assembly 204 and the connecting rod assembly 202 to lock the upper support rod assembly 204 and the connecting rod assembly 202 together. At this time, the folding locking device 3 is in a locked state. Even if a lateral pushing force is applied to the upper support rod assembly 204 and / or the connecting rod assembly 202, the connecting rod assembly 202 cannot rotate, and the connecting rod assembly 202 remains in a vertical state. The folding base stands upright on the platform base, so that the working platform is in a non-folding state. If the operator applies force to make the sliding sleeve 302 slide upward along the upper support rod assembly 204, the limit block 301 can be withdrawn from the limit groove 303, and the upper support rod assembly 204 and the connecting rod assembly 202 can rotate relative to each other. At this time, the folding locking device 3 is in an unlocked state. When a lateral pushing force is applied to the folding base, the connecting rod assembly 202 rotates and changes to a horizontal state. Other parts of the folding base except the connecting rod assembly 202 move downward while moving horizontally, so that the working platform changes from a non-folding state to a folding state. Further, the reduced height of the working platform is the same as the height of the connecting rod assembly 202.

[0046] That is, in this embodiment, when the folding locking device 3 is unlocked, the working platform is in a folding state, and the folding base can be folded down on the platform base. The overall height of the working platform is reduced, so that the working platform can smoothly pass through the door frame or elevator door when entering indoor operations, which is beneficial to further expanding the use range of the working platform. When the folding locking device 3 is locked, the working platform is in a non-folding state, and the folding base stands upright on the platform base. The above-mentioned working platform facilitates the operator to apply force inside the working platform to change the state of the working platform, improves the operation convenience of the state conversion of the working platform, reduces the time consumed for the state conversion of the working platform, and increases the user experience of the working platform.

[0047] In an embodiment of the present application, the folding locking device 3 further includes a locking member 304 arranged on the sliding sleeve 302 and used to lock the sliding sleeve 302 at a preset position on the upper support rod assembly 204. In the state where the sliding sleeve 302 is locked at the preset position, the limit block 301 is withdrawn from the limit groove 303.

[0048] Specifically, when the locking member 304 is not in the preset position, it slides downward along the upper support rod 2041 due to its own weight until part of the limiting block 301 is engaged in the limiting groove 303, so that the sliding sleeve 302 simultaneously clamps the upper support rod assembly 204 and the connecting rod assembly 202, thereby enabling the working platform to be in a non-folded state; if a force is applied to the locking member 304 to drive the sliding sleeve 302 to move and lock the sliding sleeve 302 at the preset position of the upper support rod assembly 204, the folding locking device 3 can be unlocked, and thus the working platform can be converted from the non-folded state to the folded state.

[0049] In an embodiment of the present application, the limiting block 301 includes an outward-expanded limiting portion 3011 and an extending portion 3012 provided on one side of the outward-expanded limiting portion 3011 and capable of extending into the limiting groove 303. The outward-expanded limiting portion 3011 is used to limit the distance that the sliding sleeve 302 moves toward the direction where the connecting rod assembly 202 is located.

[0050] Specifically, the outward-expanded limiting portion 3011 is provided at the end of the extending portion 3012 away from the upper support rod assembly 204 and expands outward in the direction away from the extending portion 3012. When the locking member 304 is not in the preset position, the side of the sliding sleeve 302 close to the limiting block 301 is clamped on the outward-expanded limiting portion 3011, preventing the sliding sleeve 302 from moving too much toward the direction of the connecting rod 2021 and disengaging from the upper support rod assembly 204, ensuring the reliability of the folding locking device 3.

[0051] In an embodiment of the present application, a limiting hole 2042 is formed at the preset position of the upper support rod assembly 204, and a connecting hole capable of communicating with the limiting hole 2042 is formed on the sliding sleeve 302. The locking member 304 includes:

[0052] A lock seat portion 3041, which is provided on the sliding sleeve 302 and is perpendicular to the sliding sleeve 302. An accommodation cavity distributed axially and communicating with the connecting hole is formed inside the lock seat portion 3041;

[0053] A handle portion 3042, which is provided on the side of the lock seat portion 3041 away from the sliding sleeve 302;

[0054] A lock pin portion 3043, which is movably inserted through the accommodation cavity and connected to the handle portion 3042. A locking end 3044 capable of passing through the connecting hole and extending into the limiting hole 2042 is formed at the end of the lock pin portion 3043 away from the handle portion 3042.

[0055] Specifically, when an operator applies force to the handle portion 3042, the locking pin portion 3043 can move axially along the accommodating cavity, and further enable the locking end 3044 to extend into or withdraw from the limiting hole 2042. If the locking end 3044 extends into the limiting hole 2042, the locking of the sliding sleeve 302 and the upper support rod assembly 204 can be achieved; if the locking end 3044 withdraws from the limiting hole 2042, the unlocking of the sliding sleeve 302 and the upper support rod assembly 204 can be achieved.

[0056] Further, in this embodiment, the locking member 304 further includes a spring portion. The locking pin portion 3043 includes a connecting rod body and a locking body located at one end of the connecting rod body. The locking end 3044 is formed on the locking body. The end of the connecting rod body away from the locking body is connected to the handle portion 3042. The outer diameter of the locking body is greater than that of the connecting rod body. The spring portion is sleeved on the outer peripheral side of the connecting rod body. One end of the spring portion abuts against the side end face of the locking body, and the other end of the spring portion abuts against the bottom wall of the accommodating cavity. An inclined surface is formed at one end of the locking seat portion 3041 away from the sliding sleeve 302. The handle portion 3042 is in a plate shape and is connected to the outer peripheral wall of the locking pin portion 3043. When it is not necessary to lock the sliding sleeve 302 and the upper support rod assembly 204, the handle portion 3042 is pulled outwards and rotated to a preset direction, so that the side wall of the handle portion 3042 abuts against the tip position of the locking pin portion 3043 away from the sliding sleeve 302. At this time, the spring portion is in a compressed state. When it is necessary to lock the sliding sleeve 302 and the upper support rod assembly 204, the sliding sleeve 302 is moved to a preset position and the handle portion 3042 is rotated. The locking pin portion 3043 moves axially along the accommodating cavity under the elastic force of the spring portion, and the locking end 3044 passes through the connection hole and extends into the limiting hole 2042 to achieve the locking of the sliding sleeve 302 and the upper support rod assembly 204.

[0057] In an embodiment of the present application, as Figures 1-3 shown, the number of platform bases is multiple. The multiple platform bases include a first platform base 5 and a second platform base 6. The number of folding bases is multiple. The multiple folding bases include a first folding base 7 and a second folding base 8. The working platform includes a fixed platform 1 and an extending platform 2 that is embedded in the fixed platform 1 and can reciprocally move along the length direction of the platform. The first platform base 5 and the first folding base 7 are formed on the fixed platform 1. The first folding base 7 is arranged on the top of the first platform base 5. The second platform base 6 and the second folding base 8 are formed on the extending platform 2. The second folding base 8 is arranged on the top of the second platform base 6. Folding locking devices 3 are provided on both the first folding base 7 and the second folding base 8.

[0058] Specifically, an accommodation space is formed inside the fixed platform 1. A first opening is formed at one side in the length direction of the accommodation space. The extension platform 2 is inserted into the accommodation space from the position of the first opening of the accommodation space. A second opening facing the accommodation space is formed at one side in the length direction of the extension platform 2. A moving track is provided at the bottom of the accommodation space and is arranged along the length direction of the fixed platform 1. A moving wheel capable of moving along the moving track is provided at the bottom of the extension platform 2. When the extension platform 2 moves relative to the fixed platform 1, the overall length of the working platform changes, and the space sizes inside both the fixed platform 1 and the extension platform 2 change. The above settings improve the practicability of the working platform and are beneficial to expanding the usage range of the working platform. Further, the first folding base 7 is installed on the first platform base 5, and the second folding base 8 is installed on the second platform base 6. By locking or unlocking the folding locking device 3 on the first folding base 7 and the second folding base 8, the fixed platform 1 and the extension platform 2 can be folded. When the folding locking device 3 on the first folding base 7 and the second folding base 8 is unlocked, the fixed platform 1 and the extension platform 2 are in a folded state. The first folding base 7 can be folded down on the first platform base 5, and the second folding base 8 can be folded down on the second platform base 6. The overall height of the working platform is reduced, which is beneficial to further expanding the usage range of the working platform. When the folding locking device 3 on the first folding base 7 and the second folding base 8 is locked, the fixed platform 1 and the extension platform 2 are in a non-folded state. The first folding base 7 stands upright and supports on the top of the first platform base 5, and the second folding base 8 stands upright and supports on the top of the second platform base 6.

[0059] In an embodiment of the present application, both the first folding base 7 and the second folding base 8 include:

[0060] The upper guardrail module 203, and the bottom of the upper guardrail module 203 has an upper support rod assembly 204 distributed vertically.

[0061] The connecting rod assembly 202, the top end of the connecting rod assembly 202 is rotatably connected to the upper support rod assembly 204. The bottom end of the connecting rod assembly 202 of the fixed platform 1 is rotatably connected to the top end of the first platform base 5, and the bottom end of the connecting rod assembly 202 of the extension platform 2 is rotatably connected to the top end of the second platform base 6. In the state where some of the limiting blocks 301 extend into the limiting slots 303, the connecting rod assembly 202 is distributed vertically; in the state where the limiting blocks 301 withdraw from the limiting slots 303, the connecting rod assembly 202 is distributed horizontally.

[0062] Specifically, as Figure 1 and Figure 4As shown, in this embodiment, there are two lower guardrail modules 201. The first platform base 5 includes a first base 101 and one lower guardrail module 201. The lower guardrail module 201 of the fixed platform 1 is arranged above the first base 101. A receiving space is jointly formed among the first base 101, the lower guardrail module 201, the connecting rod assembly 202, and the upper guardrail module 203 of the fixed platform 1; as Figure 1 and Figure 5 shown, the second platform base 6 includes a second base 208 and another lower guardrail module 201. The second base 208 is arranged in the receiving space and above the first base 101. The moving wheels are arranged on the second base 208 and at one end where the second opening is located. The lower guardrail module 201 of the extending platform 2 is arranged above the second base 208. The lower guardrail module 201 includes a plurality of vertical rods 2011, a first cross bar 2012, and a second cross bar 2013. The plurality of vertical rods 2011 are distributed at the four corner positions above the first base 101. The two ends of each of the first cross bar 2012 and the second cross bar 2013 are respectively connected to two vertical rods 2011 on the same longitudinal side; the lower guardrail module 201 further includes a guardrail assembly 2014 arranged on one lateral side (the lateral side in this embodiment is consistent with the length direction of the fixed platform 1 and the extending platform 2) and between two vertical rods 2011. A first opening is formed at one end of the first cross bar 2012 and the second cross bar 2013 away from the guardrail assembly 2014. The upper guardrail module 203 further includes an upper frame 205. The upper frame 205 includes longitudinal rods 2051 and third cross bars 2052 and fourth cross bars 2053 that are arranged in parallel at intervals along the longitudinal direction. The two ends of the longitudinal rod 2051 are respectively connected to the third cross bar 2052 and the fourth cross bar 2053. A second opening is formed at one end of the third cross bar 2052 and the fourth cross bar 2053 away from the longitudinal rod 2051. The upper strut assembly 204 is arranged below the upper frame 205. The top end and the bottom end of the connecting rod assembly 202 are respectively rotatably connected to the upper guardrail module 203 and the lower guardrail module 201. When the connecting rod assembly 202 is in an overall vertical state, the fixed platform 1 and the extending platform 2 are in a non-folded state; if it is necessary to fold the fixed platform 1 and the extending platform 2, the connecting rod assembly 202 can be forced to change to a horizontal state.

[0063] In an embodiment of the present application, the working platform further includes a first connecting shaft and a second connecting shaft that are both distributed along the longitudinal direction. The first connecting shaft is used to rotatably connect the bottom end of the connecting rod assembly 202 to the top end of the lower guardrail module 201. The upper strut assembly 204 is rotatably connected to the top end of the connecting rod assembly 202 for rotatably connecting the upper strut assembly 204 to the top end of the connecting rod assembly 202. The above settings enable the connecting rod assembly 202 to drive the upper guardrail module 203 to change its position horizontally when rotating.

[0064] In an embodiment of the present application, as Figures 6-9As shown, the upper guardrail module 203 further includes an upper frame 205. The upper strut assembly 204 includes a plurality of upper struts 2041 that are vertically distributed and located at the four corner positions of the bottom of the upper frame 205. The connecting rod assembly 202 includes a plurality of connecting rods 2021. The tops of the plurality of connecting rods 2021 are rotatably connected to the plurality of upper struts 2041 in one-to-one correspondence. The limiting block 301 is arranged on the side wall of the connecting rod 2021. The sliding sleeve 302 is sleeved outside the upper strut 2041 and can move along the axial direction of the upper strut 2041.

[0065] Specifically, the limiting block 301 is arranged on the longitudinal side wall of the connecting rod 2021. When the locking member 304 is not in the preset position, it slides downward along the upper strut 2041 due to its own weight until part of the limiting block 301 is caught in the limiting groove 303. The sliding sleeve 302 simultaneously catches the upper strut 2041 and the connecting rod 2021 to fix the upper guardrail module 203 and the connecting rod assembly 202 together. At this time, even if a lateral driving force is applied to the upper guardrail module 203 or the connecting rod assembly 202, the connecting rod 2021 cannot rotate and remains in the vertical state, thereby making the fixed platform 1 and the extension platform 2 in the non-folded state. If the operator applies force to move the sliding sleeve 302 to the preset position of the upper strut 2041 and locks the sliding sleeve 302 and the upper strut 2041 through the locking member 304, then part of the limiting block 301 exits from the limiting groove 303, and the upper strut 2041 and the connecting rod 2021 can rotate relative to each other. When a lateral driving force is applied to the upper guardrail module 203 or the connecting rod assembly 202, the connecting rod 2021 can rotate, and the upper guardrail module 203 moves downward while moving laterally, so that the fixed platform 1 and the extension platform 2 are changed from the non-folded state to the folded state.

[0066] Further, a limiting hole 2042 is formed at the preset position of the upper strut 2041, and a connection hole that can communicate with the limiting hole 2042 is formed on the sliding sleeve 302. If the locking end 3044 of the locking pin portion 3043 extends into the limiting hole 2042, the locking of the sliding sleeve 302 and the upper strut 2041 can be realized; if the locking end 3044 of the locking pin portion 3043 exits from the limiting hole 2042, the unlocking of the sliding sleeve 302 and the upper strut 2041 can be realized.

[0067] In an embodiment of the present application, both the first platform base 5 and the second platform base 6 include a lower frame 206 and a plurality of lower struts 207 that are vertically distributed at the four corner positions of the top of the lower frame 206. An accommodating groove 2071 is formed on the lower strut 207, and the opening of the accommodating groove 2071 faces one side in the length direction of the fixed platform 1 and the extension platform 2 and can accommodate part of the connecting rod 2021. The end of the connecting rod 2021 away from the lower strut 207 is rotatably connected to the middle position of the lower strut 207.

[0068] Specifically, in this embodiment, the lower frame 206 of the first platform base 5 and multiple lower struts 207 distributed vertically at the four corner positions of the top of the lower frame 206 together form the lower guardrail module 201 in the first platform base 5; the lower frame 206 of the second platform base 6 and multiple lower struts 207 distributed vertically at the four corner positions of the top of the lower frame 206 together form the lower guardrail module 201 in the second platform base 6. The lower frame 206 is composed of multiple vertical rods 2011, a first cross rod 2012, a second cross rod 2013, and a guardrail assembly 2014. Multiple lower struts 207 are respectively arranged at the tops of multiple vertical rods 2011. Some of the lower struts 207 are fixed (such as welded) to the vertical rods 2011. The openings of the receiving grooves 2071 of multiple lower struts 207 face the same direction, such as uniformly facing the horizontal side. However, when the connecting rod 2021 rotates relative to the lower strut 207, the connecting rod 2021 can only rotate towards the side where the opening of the receiving groove 2071 is located. When the connecting rod 2021 is in the vertical state, the bottom wall of the receiving groove 2071 can play a certain supporting role for the connecting rod 2021, which is beneficial to making the vertical state of the connecting rod 2021 more stable; further, the distance from the rotation connection point of the lower strut 207 and the connecting rod 2021 to the top surface of the lower strut 207 is the same as the height of the upper strut 2041, so that the lower strut 207 can support the upper guardrail module 203 when the fixed platform 1 and the extension platform 2 are in the folded state, so that the upper guardrail module 203 is in the horizontal state when the fixed platform 1 and the extension platform 2 are in the folded state, ensuring the overall stability when the fixed platform 1 and the extension platform 2 are in the folded state.

[0069] In an embodiment of the present application, the work platform further includes a synchronous connection device 4 for connecting the first folding base 7 and the second folding base 8. The setting of the synchronous connection device 4 enables the operator to only apply force to the fixed platform 1 or the extension platform 2, and then the overall state of the fixed platform 1 and the extension platform 2 can be changed, that is, the fixed platform 1 and the extension platform 2 can be simultaneously changed from the non-folded state to the folded state, or the fixed platform 1 and the extension platform 2 can be simultaneously changed from the folded state to the non-folded state, further improving the operation convenience and use experience of the state conversion of the work platform.

[0070] In an embodiment of the present application, the synchronous connection device 4 includes:

[0071] A first limiting plate 401, which is arranged at the top of the upper frame 205 in one of the fixed platform 1 and the extension platform 2;

[0072] The second limiting plate 402 is arranged at the bottom of the upper frame 205 where the first limiting plate 401 is located. A limiting slot 403 is formed between the first limiting plate 401 and the second limiting plate 402 and runs through along the length direction of the fixed platform 1 and the extending platform 2. The limiting slot 303 is used to hold a part of the upper frame 205 in the other one of the fixed platform 1 and the extending platform 2.

[0073] Specifically, the axial direction of the limiting slot 403 is horizontal, and the opening of the limiting slot 403 faces the longitudinal side. A part of the third cross bar 2052 or the fourth cross bar 2053 in the upper frame 205 passes through the limiting slot 403. When the extending platform 2 moves relative to the fixed platform 1, the third cross bar 2052 or the fourth cross bar 2053 moves relative to the limiting slot 403. When the states of the fixed platform 1 and the extending platform 2 change, an operator only applies force to one of the fixed platform 1 and the extending platform 2, and the first limiting plate 401 and / or the second limiting plate 402 can apply force to the other one of the fixed platform 1 and the extending platform 2 to drive the other one of the fixed platform 1 and the extending platform 2 to change the state accordingly. The structure of the above-mentioned synchronous connection device 4 is simple and can play a good synchronous role in the movement and change of the fixed platform 1 or the extending platform 2.

[0074] In an embodiment of the present application, the number of the synchronous connection devices 4 is four. Among them, two synchronous connection devices 4 are respectively arranged on the third cross bar 2052 and the fourth cross bar 2053 of the fixed platform 1, and the openings of the limiting slots 403 of the above two synchronous connection devices 4 face the extending platform 2; the other two synchronous connection devices 4 are respectively arranged on the third cross bar 2052 and the fourth cross bar 2053 of the extending platform 2, and the openings of the limiting slots 403 of the above two synchronous connection devices 4 face the fixed platform 1. The above setting further enhances the movement stability and synchronism of the fixed platform 1 and the extending platform 2.

[0075] In an embodiment of the present application, the synchronous connection device 4 further includes:

[0076] The first protective pad 404 is arranged below the first limiting plate 401 and is used to protect the top surface of the upper frame 205;

[0077] The second protective pad 405 is arranged above the second limiting plate 402 and is used to protect the bottom surface of the upper frame 205.

[0078] Specifically, the first protective pad 404 and the second protective pad 405 in this embodiment are both made of nylon material. The first protective pad 404 and the second protective pad 405 made of the above material can protect the upper frame 205 when the extending platform 2 moves; further, to further avoid the third cross bar 2052 and the fourth cross bar 2053 of the upper frame 205 from being scratched when the extending platform 2 moves, a protective coating can be provided on the outer surface of the upper frame 205.

[0079] Another embodiment of the present application provides an aerial work device, which includes the work platform in any of the above embodiments. Among them, the aerial work device includes, but is not limited to, a scissor lift platform, a knuckle boom lift platform, a straight boom lift platform, a truck-mounted aerial work platform, a spider lift platform, and a mast climbing work platform.

[0080] In the description of the present application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0081] In the present application, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "fix", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0082] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0083] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. An operating platform, characterized in that, The working platform includes: A platform base; A folding base, on which there are an upper support rod assembly (204) and a connecting rod assembly (202). The top end of the connecting rod assembly (202) is rotatably connected to the upper support rod assembly (204), and the bottom end of the connecting rod assembly (202) is rotatably connected to the top end of the platform base; A folding locking device (3), including a limit block (301) and a sliding sleeve (302). The limit block (301) is arranged on the connecting rod assembly (202), and the sliding sleeve (302) is movably arranged on the upper support rod assembly (204). A limit groove (303) is formed on the sliding sleeve (302) for part of the limit block (301) to extend into; Wherein, in the state where part of the limit block (301) extends into the limit groove (303), the folding base stands upright and supports on the platform base; in the state where the limit block (301) withdraws from the limit groove (303), the folding base lies down and folds on the platform base.

2. The operation platform according to claim 1, wherein The folding locking device (3) further includes a locking member (304) arranged on the sliding sleeve (302) and used to lock the sliding sleeve (302) at a preset position on the upper support rod assembly (204). In the state where the sliding sleeve (302) is locked at the preset position, the limit block (301) withdraws from the limit groove (303).

3. The working platform according to claim 2, characterized in that, The limit block (301) includes an outward-expanded limit portion (3011) and an extending portion (3012) arranged on one side of the outward-expanded limit portion (3011) and capable of extending into the limit groove (303). The outward-expanded limit portion (3011) is used to limit the moving distance of the sliding sleeve (302) in the direction close to the connecting rod assembly (202).

4. The working platform according to claim 2, characterized in that, The upper support rod assembly (204) forms a limit hole (2042) at the preset position, and a connecting hole capable of communicating with the limit hole (2042) is formed on the sliding sleeve (302). The locking member (304) includes: A lock seat portion (3041), arranged on the sliding sleeve (302) and perpendicular to the sliding sleeve (302). An accommodation cavity distributed axially and communicating with the connecting hole is formed inside the lock seat portion (3041); A handle portion (3042), arranged on the side of the lock seat portion (3041) away from the sliding sleeve (302); A lock pin portion (3043), movably penetrating through the accommodation cavity and connected to the handle portion (3042). A locking end (3044) capable of passing through the connecting hole and extending into the limit hole (2042) is formed at one end of the lock pin portion (3043) away from the handle portion (3042).

5. The working platform according to claim 1, characterized in that The number of the platform bases is multiple, and the multiple platform bases include a first platform base (5) and a second platform base (6); the number of the folding bases is multiple, and the multiple folding bases include a first folding base (7) and a second folding base (8); the working platform includes a fixed platform (1) and an extending platform (2) embedded in the fixed platform (1) and capable of reciprocatingly moving along the length direction of the platform. The first platform base (5) and the first folding base (7) are formed on the fixed platform (1), the first folding base (7) is arranged on the top of the first platform base (5), the second platform base (6) and the second folding base (8) are formed on the extending platform (2), the second folding base (8) is arranged on the top of the second platform base (6), and the folding locking device (3) is provided on both the first folding base (7) and the second folding base (8).

6. The working platform according to claim 5, characterized in that, Both the first folding base (7) and the second folding base (8) include: an upper guardrail module (203), the bottom of the upper guardrail module (203) having an upper strut assembly (204) distributed vertically; a connecting rod assembly (202), the top end of the connecting rod assembly (202) being rotatably connected to the upper strut assembly (204), the bottom end of the connecting rod assembly (202) of the fixed platform (1) being rotatably connected to the top end of the first platform base (5), the bottom end of the connecting rod assembly (202) of the extending platform (2) being rotatably connected to the top end of the second platform base (6). In a state where a part of the limiting block (301) extends into the limiting groove (303), the connecting rod assembly (202) is distributed in the vertical direction; in a state where the limiting block (301) withdraws from the limiting groove (303), the connecting rod assembly (202) is distributed in the horizontal direction.

7. The working platform according to claim 6, characterized in that, The upper guardrail module (203) further includes an upper frame (205), the upper strut assembly (204) includes a plurality of upper struts (2041) distributed vertically and located at the four corner positions at the bottom of the upper frame (205), the connecting rod assembly (202) includes a plurality of connecting rods (2021), the top ends of the plurality of connecting rods (2021) are rotatably connected to the plurality of upper struts (2041) one by one, the limiting block (301) is arranged on the side wall of the connecting rod (2021), and the sliding sleeve (302) is sleeved outside the upper strut (2041) and can move along the axial direction of the upper strut (2041).

8. The work platform according to claim 5, characterized in that, The working platform further includes a synchronous connection device (4) for connecting the first folding base (7) and the second folding base (8).

9. The operation platform according to claim 8, characterized in that, The synchronous connection device (4) includes: a first limiting plate (401), arranged on the top of the upper frame (205) in one of the fixed platform (1) and the extending platform (2); The second limiting plate (402) is arranged at the bottom of the upper frame (205) where the first limiting plate (401) is located. A limiting card slot (403) running through along the length direction of the fixed platform (1) and the extension platform (2) is formed between the first limiting plate (401) and the second limiting plate (402). The limiting slot (303) is used to clamp a part of the upper frame (205) in the other one of the fixed platform (1) and the extension platform (2).

10. An aerial work equipment, characterized in that, The aerial work equipment includes the working platform according to any one of claims 1-9.

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