Work platform and aerial work equipment

Abstract

The application discloses a work platform and an aerial work equipment. The work platform comprises a fixed platform and an extension platform. The extension platform is embedded in the fixed platform and can reciprocate along the length direction of the platform. The fixed platform comprises a first platform base and a first folding base. The extension platform comprises a second platform base and a second folding base. The work platform further comprises: a synchronous connecting device for connecting the first folding base of the fixed platform and the second folding base of the extension platform; and a folding locking device for enabling the first folding base and the second folding base to be uprightly supported on the combination of the first platform base and the second platform base in a locked state and enabling the first folding base and the second folding base to be folded on the combination of the first platform base and the second platform base in an unlocked state. The work platform has the advantages of simple structure, easy folding and short folding time.

Description

Technical Field

[0001] The present application belongs to the technical field of aerial work equipment, and specifically relates to a work platform and aerial work equipment. Background Art

[0002] Aerial work equipment (such as aerial work vehicles) is a major load-bearing device for modern aerial work. It can be used for both manual and material lifting. When entering indoor spaces, the aerial work platform must pass through door frames or elevator doors, and in some cases, the entire machine must be lowered to achieve this. The guardrails on existing aerial work platforms fold in sections, folding inward from low to high according to the position of the guardrail hinge points. The guardrails must be folded in a strict, established order; otherwise, interference between the guardrails will prevent the entire machine from being lowered to the required height. Furthermore, this folding method is time-consuming and inconvenient. Summary of the Invention

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

[0004] To achieve the above-mentioned objectives, the present application provides, in a first aspect, a work platform, comprising a fixed platform and an extension platform, wherein the extension platform is embedded in the fixed platform and can reciprocate along the length direction of the platform, the fixed platform comprising a first platform base and a first folding base mounted on the first platform base, the extension platform comprising a second platform base and a second folding base mounted on the second platform base, and the work platform further comprising:

[0005] a synchronous connection device for connecting the first folding base of the fixed platform and the second folding base of the extension platform;

[0006] The folding locking device is used to support the first folding base and the second folding base upright on the combination of the first platform base and the second platform base in the locked state, and to enable the first folding base and the second folding base to be folded down on the combination of the first platform base and the second platform base in the unlocked state.

[0007] In an embodiment of the present application, the first folding base and the second folding base both include:

[0008] An upper guardrail module, the bottom of which has an upper support rod assembly distributed vertically;

[0009] The 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, and the bottom end of the connecting rod assembly of the extended platform is rotatably connected to the top end of the second platform base. The folding locking device can distribute the connecting rod assembly in the vertical direction in the locked state, and the folding locking device can distribute the connecting rod assembly in the horizontal direction in the unlocked state.

[0010] 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 at the four corners of 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 in a one-to-one correspondence, and the folding locking device includes:

[0011] A limit block is provided on the side wall of the connecting rod;

[0012] The sliding sleeve is sleeved on the outer side of the upper support rod and can move along the axial direction of the upper support rod. The sliding sleeve is formed with a limiting groove for part of the limiting block to extend into.

[0013] The locking piece is arranged on the sliding sleeve and is used to lock the sliding sleeve at a preset position of the upper support rod. When the sliding sleeve is locked at the preset position, the limit block withdraws from the limit groove.

[0014] In an embodiment of the present 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, and the outward-expanding limit portion is used to limit the distance that the sliding sleeve moves toward the direction where the connecting rod is located.

[0015] In an embodiment of the present application, a limiting hole is formed on the upper support rod at a preset position, a connecting hole capable of communicating with the limiting hole is formed on the sliding sleeve, and the locking member includes:

[0016] A lock seat portion is provided on the sliding ferrule and is perpendicular to the sliding ferrule, wherein an accommodating cavity is formed inside the lock seat portion and is distributed along the axial direction and communicated with the connecting hole;

[0017] The lock pin part has one end extending into the accommodating cavity and can move along the axial direction of the accommodating cavity, and the other end of the lock pin part is exposed from the lock seat part.

[0018] In an embodiment of the present application, the first platform base and the second platform base both include a lower frame and a plurality of lower support rods vertically distributed at the four corners of the lower frame. The lower support rods are provided with a receiving groove with an opening facing the fixed platform and one side of the length direction of the extension platform and capable of accommodating part of the connecting rod. The connecting rod is rotatably connected to the middle position of the lower support rod at one end away from the upper support rod.

[0019] In an embodiment of the present application, the synchronous connection device includes:

[0020] A first limiting plate is provided on the top of the upper frame of one of the fixed platform and the extension platform;

[0021] The second limiting plate is arranged at the bottom of the upper frame where the first limiting plate is located. A limiting slot is formed between the first limiting plate and the second limiting plate and passes through the length direction of the fixed platform and the extension platform. The limiting slot is used to clamp part of the upper frame of the other one of the fixed platform and the extension platform.

[0022] In an embodiment of the present application, the synchronous connection device further includes:

[0023] a first protective pad, disposed below the first limiting plate and used to protect the top surface of the upper frame;

[0024] The second protective pad is arranged above the second limiting plate and is used to protect the bottom surface of the upper frame.

[0025] In an embodiment of the present application, there are multiple folding and locking devices, and the multiple folding and locking devices include a first folding and locking device arranged on the fixed platform and a second folding and locking device arranged on the extension platform.

[0026] A second aspect of the present application provides an aerial work equipment, which includes the above-mentioned work platform.

[0027] Through the above technical solution, it can be seen that the working platform includes a fixed platform, an extension platform, a folding locking device and a synchronous connection device. The extension platform is embedded in the fixed platform and can move back and forth along the length direction of the platform. The fixed platform includes a first platform base and a first folding base installed on the first platform base. The extension platform includes a second platform base and a second folding base installed on the second platform base. The synchronous connection device is used to connect the first folding base of the fixed platform and the second folding base of the extension platform. The folding locking device is used to make the first folding base and the second folding base stand upright on the combination of the first platform base and the second platform base in the locked state, and make the first folding base and the second folding base able to fall down and fold on the combination of the first platform base and the second platform base in the unlocked state. The fixed platform and the extension platform of the working platform can change their states as a whole, which improves the operational convenience of the working platform state conversion, reduces the time spent on the working platform state conversion, and improves the user experience of the working platform.

[0028] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying 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 on the embodiments of the present application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the drawings:

[0030] Figure 1 This is a schematic diagram of the first structure of the working platform in an embodiment of the present application (the working platform is in an extended state);

[0031] Figure 2 This is a schematic diagram of the first structure of the working platform in an embodiment of the present application (the working platform is in an unfolded state);

[0032] Figure 3 This is a schematic diagram of the first structure of the working platform in an embodiment of the present application (the working platform is in a folded state);

[0033] Figure 4 This is a structural diagram of the fixed platform in the embodiment of the present application;

[0034] Figure 5 This is a schematic structural diagram of the extension platform in an embodiment of the present application;

[0035] Figure 6 This is a schematic diagram of the upper support rod and the connecting rod being locked in an embodiment of the present application;

[0036] Figure 7 A schematic diagram of unlocking the upper support rod and the connecting rod in an embodiment of the present application;

[0037] Figure 8 Schematic diagram of the upper support rod and the connecting rod being locked in the embodiment of the present application (partially cut away);

[0038] Figure 9 This is a schematic diagram (partially cut away) of unlocking the upper support rod and the connecting rod in an embodiment of the present application.

[0039] Description of Reference Numerals

[0040] 1 - fixed platform; 101 - first base; 2 - extension platform; 201 - lower guardrail module; 2011 - vertical rod; 2012 - first horizontal rod; 2013 - second horizontal rod; 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 - vertical rod; 2052 - third horizontal rod; 2053 - fourth horizontal rod; 206 - lower frame; 207 - lower support rod; 2071 - accommodating groove; 208 - second base; 3 - folding locking device; 301 - limiting block; 3011 - outwardly expanded limiting portion; 3012 - protruding portion; 302 - sliding sleeve; 303 - limiting groove; 304 - locking piece; 3041 - locking seat portion; 3042 - handle portion; 3043 - locking pin portion; 3044 - locking end; 4 - synchronous connecting device; 401 - first limiting plate; 402 - second limiting plate; 403 - limiting clamping groove; 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 DESCRIPTION

[0041] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0042] The embodiments of the present application provide a work platform, such as Figures 1-3 As shown, the work platform comprises a fixed platform 1 and an extension platform 2, the extension platform 2 is embedded in the fixed platform 1 and can reciprocate along the length direction of the platform, the fixed platform 1 comprises a first platform base 5 and a first folding base 7 installed on the first platform base 5, the extension platform 2 comprises a second platform base 6 and a second folding base 8 installed on the second platform base 6, and the work platform further comprises:

[0043] a synchronous connecting device 4 for connecting the first folding base 7 of the fixed platform 1 and the second folding base 8 of the extension platform 2;

[0044] a folding locking device 3 for, in a locked state, enabling the first folding base 7 and the second folding base 8 to be upright supported on the combination of the first platform base 5 and the second platform base 6, and for, in an unlocked state, enabling the first folding base 7 and the second folding base 8 to be folded on the combination of the first platform base 5 and the second platform base 6.

[0045] Specifically, the work platform in this embodiment is suitable for aerial work equipment, wherein the aerial work equipment includes but is not limited to a scissor-type aerial work platform, a curved-arm aerial work platform, a straight-arm aerial work platform, a vehicle-mounted aerial work platform, a spider-type aerial work platform, and a mast-type aerial work platform. A accommodating space is formed inside the fixed platform 1, and a first opening is formed on one side of the accommodating space in the longitudinal direction. The extension platform 2 is embedded in the accommodating space from the position of the first opening of the accommodating space, and a second opening is formed on one side of the extension platform 2 in the longitudinal direction toward the accommodating space. A movable track is provided at the bottom of the accommodating space, and the movable track is arranged along the longitudinal direction of the fixed platform 1. The bottom of the extension platform 2 is provided with movable wheels that can move along the movable track. When the extension platform 2 moves relative to the fixed platform 1, the overall length of the work platform changes, and the size of the space inside the fixed platform 1 and the extension platform 2 changes. The above arrangement improves the practicality of the work platform and is conducive to expanding the scope of use of the work platform. Furthermore, the folding locking device 3 is locked or unlocked so that the fixed platform 1 and the extension platform 2 can be folded. When the folding locking device 3 is unlocked, the fixed platform 1 and the extension platform 2 are in a folded state, and the connected first folding base 7 and the second folding base 8 can be folded on the combination composed of the first platform base 5 and the second platform base 6. 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 work, which is conducive to further expanding the scope of use of the working platform; when the folding locking device 3 is locked, the fixed platform 1 and the extension platform 2 are in a non-folded state, and the connected first folding base 7 and the second folding base 8 are upright supported on the first platform base 5. On the combination composed of a second platform base 6; the setting of the synchronous connection device 4 allows the operator to change the state of the fixed platform 1 and the extension platform 2 as a whole only by applying force to the fixed platform 1 or the extension platform 2, that is, the fixed platform 1 and the extension platform 2 are simultaneously transformed from the unfolded state to the folded state, or the fixed platform 1 and the extension platform 2 are simultaneously transformed from the folded state to the unfolded state. The above-mentioned working platform is convenient for the operator to stand inside the fixed platform 1 and the extension platform 2 and apply force to change the state of the fixed platform 1 and the extension platform 2, thereby improving the operational convenience of the working platform state conversion, reducing the time consumed in the working platform state conversion, and increasing the user experience of the working platform.

[0046] In one embodiment of the present application, the first folding base 7 and the second folding base 8 both include:

[0047] An upper guardrail module 203, the bottom of which has an upper support rod assembly 204 distributed vertically;

[0048] 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. The folding locking device 3 can distribute the connecting rod assembly 202 in the vertical direction in the locked state, and can distribute the connecting rod assembly 202 in the horizontal direction in the unlocked state.

[0049] Specifically, if Figure 1 and Figure 4 As shown, in this embodiment, there are two lower guardrail modules 201. The first platform base 5 includes a first base 101 and a lower guardrail module 201. The lower guardrail module 201 of the fixed platform 1 is arranged above the first base 101. The first base 101 of the fixed platform 1, the lower guardrail module 201, the connecting rod assembly 202 and the upper guardrail module 203 together form an accommodating space; Figure 1 and Figure 5As shown, the second platform base 6 includes a second base 208 and another lower guardrail module 201. The second base 208 is disposed in the accommodation space and above the first base 101. The movable wheels are disposed on the second base 208 and located at one end where the second opening is located. The lower guardrail module 201 of the extension platform 2 is disposed above the second base 208. The lower guardrail module 201 includes a plurality of vertical bars 2011, a first cross bar 2012, and a second cross bar 2013. The plurality of vertical bars 2011 are distributed at the four corners above the first base 101. The first cross bar 2012 and the second cross bar 2013 are connected at their respective ends to two vertical bars 2011 on the same longitudinal side. The lower guardrail module 201 also includes a guardrail assembly 2014 disposed on a transverse side (the transverse direction in this embodiment is consistent with the longitudinal direction of the fixed platform 1 and the extension platform 2) and located between the two vertical bars 2011. The first opening is formed at the 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, which includes a longitudinal rod 2051 and a third crossbar 2052 and a fourth crossbar 2053 spaced apart and parallel to each other in the longitudinal direction. The ends of the longitudinal rod 2051 are connected to the third crossbar 2052 and the fourth crossbar 2053, respectively. A second opening is formed at the end of the third crossbar 2052 and the fourth crossbar 2053 away from the longitudinal rod 2051. The upper support rod assembly 204 is disposed below the upper frame 205. The top and bottom ends of the connecting rod assembly 202 are rotatably connected to the upper guardrail module 203 and the lower guardrail module 201, respectively. When the connecting rod assembly 202 is in a vertical position as a whole, the fixed platform 1 and the extension platform 2 are in a non-folded position. If the fixed platform 1 and the extension platform 2 need to be folded, the connecting rod assembly 202 is subjected to force and transformed into a horizontal position. In this case, the height of the lowered working platform is consistent with the length of the connecting rod assembly 202.

[0050] In one embodiment of the present application, the working platform also includes a first connecting shaft and a second connecting shaft both distributed longitudinally. The first connecting shaft is used to rotationally connect the bottom end of the connecting rod assembly 202 with the top end of the lower guardrail module 201. The upper support rod assembly 204 is rotationally connected to the top end of the connecting rod assembly 202 and is used to rotationally connect the upper support rod assembly 204 with the top end of the connecting rod assembly 202. The above arrangement enables the connecting rod assembly 202 to drive the upper guardrail module 203 to change its position in the lateral direction when it rotates.

[0051] In one embodiment of the present application, the upper guardrail module 203 further includes an upper frame 205, the upper support rod assembly 204 includes a plurality of upper support rods 2041 vertically distributed and located at the four corners of 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 support rods 2041 in a one-to-one correspondence, and the folding locking device 3 includes:

[0052] The limiting block 301 is provided on the side wall of the connecting rod 2021;

[0053] The sliding sleeve 302 is sleeved on the outer side of the upper support rod 2041 and can move along the axial direction of the upper support rod 2041. The sliding sleeve 302 is formed with a limiting groove 303 for part of the limiting block 301 to extend into;

[0054] The locking member 304 is provided on the sliding sleeve 302 and is used to lock the sliding sleeve 302 at a preset position of the upper support rod 2041. When the sliding sleeve 302 is locked at the preset position, the limit block 301 withdraws from the limit slot 303.

[0055] Specifically, if Figures 6-9 As shown, the limit block 301 is set on the longitudinal side wall of the connecting rod 2021, and the limit groove 303 is U-shaped and has a downward opening. 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 limit block 301 is stuck in the limit groove 303, and the sliding sleeve 302 simultaneously clamps the upper support rod 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 pushing force is applied to the upper guardrail module 203 or the connecting rod assembly 202, the connecting rod 2021 cannot rotate, and the connecting rod 2021 is still in a vertical state. , thereby making the fixed platform 1 and the extension platform 2 in an unfolded state; if the operator applies force to move the sliding sleeve 302 to the preset position of the upper support rod 2041 and locks the sliding sleeve 302 and the upper support rod 2041 through the locking piece 304, part of the limit block 301 will withdraw from the limit groove 303, and the upper support rod 2041 and the connecting rod 2021 can rotate relative to each other, applying a lateral pushing force 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 transformed from a unfolded state to a folded state.

[0056] In one embodiment of the present application, the limit block 301 includes an outward-expanding limit portion 3011 and an extending portion 3012 arranged on one side of the outward-expanding limit portion 3011 and capable of extending into the limit groove 303. The outward-expanding limit portion 3011 is used to limit the distance that the sliding sleeve 302 moves toward the direction close to the connecting rod 2021.

[0057] Specifically, the outward expansion limit portion 3011 is arranged at one end of the insertion portion 3012 away from the upper support rod 2041 and expands outward in the direction away from the insertion portion 3012. When the locking member 304 is not in the preset position, the side of the sliding sleeve 302 close to the limit block 301 is clamped on the outward expansion limit portion 3011, preventing the sliding sleeve 302 from moving too much in the direction of the connecting rod 2021 and disengaging from the upper support rod 2041, thereby ensuring the reliability of the folding locking device 3.

[0058] In one embodiment of the present application, the upper support rod 2041 is formed with a limiting hole 2042 at a preset position, the sliding sleeve 302 is formed with a connecting hole that can communicate with the limiting hole 2042, and the locking member 304 includes:

[0059] The lock seat 3041 is provided on the sliding sleeve 302 and is perpendicular to the sliding sleeve 302. The lock seat 3041 has an accommodating cavity formed therein that is distributed along the axial direction and communicates with the connecting hole.

[0060] The handle portion 3042 is provided on a side of the lock base portion 3041 away from the sliding sleeve 302;

[0061] The locking pin portion 3043 is movably disposed in the accommodating cavity and connected to the handle portion 3042 . An end of the locking pin portion 3043 away from the handle portion 3042 is formed with a locking end 3044 that can pass through the connecting hole and extend into the limiting hole 2042 .

[0062] Specifically, the operator applies force to the handle portion 3042 to cause the locking pin portion 3043 to move axially along the accommodating cavity, thereby causing the locking end 3044 to extend into the limiting hole 2042 or withdraw from the limiting hole 2042. If the locking end 3044 extends into the limiting hole 2042, the sliding sleeve 302 and the upper support rod 2041 can be locked; if the locking end 3044 withdraws from the limiting hole 2042, the sliding sleeve 302 and the upper support rod 2041 can be unlocked.

[0063] The cam 3042 is engaged with the latch 3046 and the latch 3047 is engaged with the latch 3048. The cam 3042 is engaged with the latch 3048 in a position to engage the latch 3046, and the latch 3047 is engaged with the latch 3048. When sliding the sleeve 302 and the upper support rod 2041, pull the handle part 3042 outward and rotate it to a preset direction so that the side wall of the handle part 3042 rests against the tip of the locking pin part 3043 away from one end of the sliding sleeve 302. At this time, the spring part is in a compressed state; when it is necessary to lock the sliding sleeve 302 and the upper support rod 2041, move the sliding sleeve 302 to the preset position and rotate the handle part 3042. The locking pin part 3043 moves axially along the accommodating cavity under the elastic force of the spring part, and the locking end 3044 passes through the connecting hole and extends into the limiting hole 2042, thereby realizing the locking of the sliding sleeve 302 and the upper support rod 2041.

[0064] In one embodiment of the present application, the first platform base 5 and the second platform base 6 both include a lower frame 206 and a plurality of lower support rods 207 vertically distributed at the four corners of the top of the lower frame 206. The lower support rod 207 is formed with a receiving groove 2071 that opens toward one side of the length direction of the fixed platform 1 and the extension platform 2 and can accommodate part of the connecting rod 2021. The connecting rod 2021 is rotatably connected to the middle position of the lower support rod 207 at one end away from the lower support rod 207.

[0065] Specifically, in this embodiment, the lower frame 206 of the first platform base 5 and the multiple lower support rods 207 vertically distributed at the four corners of the top of the lower frame 206 together constitute the lower guardrail module 201 in the first platform base 5; the lower frame 206 of the second platform base 6 and the multiple lower support rods 207 vertically distributed at the four corners of the top of the lower frame 206 together constitute the lower guardrail module 201 in the second platform base 6. The lower frame 206 is composed of a plurality of vertical rods 2011, a first cross bar 2012, a second cross bar 2013 and a guardrail assembly 2014. A plurality of lower support rods 207 are respectively arranged at the top ends of the plurality of vertical rods 2011. Some of the lower support rods 207 are fixed (such as welded) to the vertical rods 2011. The openings of the receiving grooves 2071 of the plurality of lower support rods 207 are in the same direction, such as uniformly facing one lateral side. However, when the connecting rod 2021 rotates relative to the lower support rod 207, the connecting rod 2021 can only rotate toward the side where the opening of the receiving groove 2071 is located. When the connecting rod 2021 is in a vertical state, the receiving groove 2071 is The bottom wall of 71 can play a certain supporting role on the connecting rod 2021, which is conducive to making the vertical state of the connecting rod 2021 more stable; further, the distance from the rotating connection between the lower support rod 207 and the connecting rod 2021 to the top surface of the lower support rod 207 is consistent with the height of the upper support rod 2041, so that the lower support rod 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 a horizontal state when the fixed platform 1 and the extension platform 2 are in the folded state, ensuring the overall stability of the fixed platform 1 and the extension platform 2 when they are in the folded state.

[0066] In one embodiment of the present application, the synchronous connection device 4 includes:

[0067] A first limiting plate 401 is provided on the top of the upper frame 205 of either the fixed platform 1 or the extension platform 2;

[0068] 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, which passes through the length direction of the fixed platform 1 and the extension platform 2. The limiting slot 303 is used to clamp part of the upper frame 205 of the other one of the fixed platform 1 and the extension platform 2.

[0069] Specifically, the axis of the limiting slot 403 is transverse, and the opening of the limiting slot 403 faces the longitudinal side. Part of the third crossbar 2052 or the fourth crossbar 2053 in the upper frame 205 passes through the limiting slot 403. When the extension platform 2 moves relative to the fixed platform 1, the third crossbar 2052 or the fourth crossbar 2053 moves relative to the limiting slot 403. When the state of the fixed platform 1 or the extension platform 2 changes, the operator only needs to apply force to one of the fixed platform 1 and the extension platform 2, and the first limiting plate 401 and / or the second limiting plate 402 can apply force to the other of the fixed platform 1 and the extension platform 2 to drive the other of the fixed platform 1 and the extension platform 2 to change its state accordingly. The structure of the above-mentioned synchronous connection device 4 is simple and can effectively synchronize the movement changes of the fixed platform 1 or the extension platform 2.

[0070] In one embodiment of the present application, the number of synchronous connection devices 4 is four, among which 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 limit slots 403 of the above two synchronous connection devices 4 are facing the extension 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 extension platform 2, and the openings of the limit slots 403 of the above two synchronous connection devices 4 are facing the fixed platform 1. The above arrangement further enhances the movement stability and synchronization of the fixed platform 1 and the extension platform 2.

[0071] In one embodiment of the present application, the synchronous connection device 4 further includes:

[0072] A first protective pad 404 is provided below the first limiting plate 401 and is used to protect the top surface of the upper frame 205;

[0073] The second protection pad 405 is disposed above the second limiting plate 402 and is used to protect the bottom surface of the upper frame 205 .

[0074] Specifically, the first protective pad 404 and the second protective pad 405 in this embodiment are both made of nylon. The first protective pad 404 and the second protective pad 405 made of the above material can protect the upper frame 205 when the extension platform 2 moves; further, in order to further prevent the third cross bar 2052 and the fourth cross bar 2053 of the upper frame 205 from being scratched when the extension platform 2 moves, a protective coating can be provided on the outer surface of the upper frame 205.

[0075] In one embodiment of the present application, there are multiple folding and locking devices 3 , and the multiple folding and locking devices 3 include a first folding and locking device provided on the fixed platform 1 and a second folding and locking device provided on the extension platform 2 .

[0076] Specifically, gaps are formed between the longitudinal sides of the extension platform 2 and the fixed platform 1, which facilitates the smoothness of the lateral movement of the extension platform 2; the first folding locking device and the second folding locking device are arranged on the same lateral side, which facilitates the simultaneous unlocking of the upper support rod 2041 and the connecting rod 2021 of the fixed platform 1 and the extension platform 2 by the operator, thereby improving the operation convenience of the state transformation of the fixed platform 1 and the extension platform 2.

[0077] Another embodiment of the present application provides a work platform, which can be used in a high-altitude work equipment, and the high-altitude work equipment includes but is not limited to a scissor-type aerial work platform, a boom-type aerial work platform, a straight-arm aerial work platform, a truck-mounted aerial work platform, a spider-type aerial work platform, and a mast-type aerial work platform.

[0078] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0079] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0081] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A working platform, comprising a fixed platform (1) and an extension platform (2), wherein the extension platform (2) is embedded in the fixed platform (1) and can move back and forth along the length direction of the platform, characterized in that: The fixed platform (1) includes a first platform base (5) and a first folding base (7) mounted on the first platform base (5); the extension platform (2) includes a second platform base (6) and a second folding base (8) mounted on the second platform base (6); the first folding base (7) and the second folding base (8) both include an upper guardrail module (203) and a connecting rod assembly (202); the bottom of the upper guardrail module (203) includes an upper support rod assembly (204) distributed vertically; the upper guardrail module (203) includes an upper frame (205); the upper support rod assembly (204) includes a plurality of upper support rods (2041) distributed vertically and located at the four corners of 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 (221) are rotatably connected to the plurality of upper support rods (2041) in a one-to-one correspondence; the working platform further includes: A synchronous connection device (4) for connecting the first folding base (7) of the fixed platform (1) and the second folding base (8) of the extension platform (2); A folding locking device (3) is used to enable the first folding base (7) and the second folding base (8) to be upright supported on the combination of the first platform base (5) and the second platform base (6) in a locked state, and to enable the first folding base (7) and the second folding base (8) to be folded down on the combination of the first platform base (5) and the second platform base (6) in an unlocked state, wherein the folding locking device (3) comprises: A limiting block (301) is provided on the side wall of the connecting rod (2021); The sliding sleeve (302) is mounted on the outer side of the upper support rod (2041) and can be moved along the The upper support rod (2041) moves axially, and the sliding sleeve (302) is provided with a portion of The limiting groove (303) into which the limiting block (301) extends; A locking member (304) is provided on the sliding sleeve (302) and is used to lock the sliding sleeve The clamping sleeve (302) is locked at a preset position of the upper support rod (2041) and is locked in the sliding clamping sleeve (302). When the sleeve (302) is locked at the preset position, the limit block (301) is withdrawn from the The limiting groove (303).

2. The working platform according to claim 1, characterized in that: The bottom of the upper guardrail module (203) has an upper support rod assembly (204) distributed in the vertical direction; 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); 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); the folding locking device (3) can make the connecting rod assembly (202) distributed in the vertical direction in the locked state, and the folding locking device (3) can make the connecting rod assembly (202) distributed in the horizontal direction in the unlocked state.

3. The working platform according to claim 1, characterized in that: The limit block (301) comprises an outward-expanding limit portion (3011) and an extending portion (3012) arranged on one side of the outward-expanding limit portion (3011) and capable of extending into the limit groove (303); the outward-expanding limit portion (3011) is used to limit the distance that the sliding sleeve (302) moves in a direction close to the connecting rod (2021).

4. The working platform according to claim 1, characterized in that: The upper support rod (2041) is formed with a limiting hole (2042) at the preset position, the sliding sleeve (302) is formed with a connecting hole capable of communicating with the limiting hole (2042), and the locking member (304) comprises: A lock seat portion (3041) is provided on the sliding sleeve (302) and is perpendicular to the sliding sleeve (302), and an accommodating cavity is formed inside the lock seat portion (3041) and is distributed along the axial direction and communicated with the connecting hole; A handle portion (3042) is provided on a side of the lock seat portion (3041) away from the sliding sleeve (302); A locking pin portion (3043) is movably arranged in the accommodating cavity and connected to the handle portion (3042); an end of the locking pin portion (3043) away from the handle portion (3042) is formed with a locking end (3044) that can pass through the connecting hole and extend into the limiting hole (2042).

5. The working platform according to claim 1, characterized in that: The first platform base (5) and the second platform base (6) both comprise a lower frame (206) and a plurality of lower support rods (207) vertically distributed at the four corners of the top of the lower frame (206). The lower support rod (207) is formed with an accommodating groove (2071) which opens toward 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 support rod (207) is rotatably connected to the middle position of the lower support rod (207).

6. The working platform according to claim 1, characterized in that: The synchronous connection device (4) comprises: A first limiting plate (401) is arranged on the top of an upper frame (205) of one of the fixed platform (1) and the extension 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 slot (403) is formed between the first limiting plate (401) and the second limiting plate (402) and passes through the length direction of the fixed platform (1) and the extension platform (2). The limiting slot (303) is used to clamp the upper frame (205) in the other of the fixed platform (1) and the extension platform (2).

7. The working platform according to claim 6, characterized in that: The synchronous connection device (4) further comprises: a first protective pad (404), disposed below the first limiting plate (401) and used to protect the top surface of the upper frame (205); A second protective pad (405) is provided above the second limiting plate (402) and is used to protect the bottom surface of the upper frame (205).

8. The work platform according to any one of claims 1 to 7, characterized in that: There are multiple folding and locking devices (3), and the multiple folding and locking devices (3) include a first folding and locking device arranged on the fixed platform (1) and a second folding and locking device arranged on the extension platform (2).

9. A high-altitude working equipment, characterized in that: The aerial work equipment includes a work platform according to any one of claims 1-8.

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