Working platform and high-altitude operation equipment

Abstract

The invention discloses a work platform and 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, and the extension platform comprises a second platform base and a second folding base. The synchronous connecting device is used for connecting the first folding base of the fixed platform and the second folding base of the extension platform; and the folding locking device is used for enabling the first folding base and the second folding base to be vertically supported on a combined body formed by the first platform base and the second platform base in a locking state, and enabling the first folding base and the second folding base to be folded on the combined body formed by the first platform base and the second platform base in a lodging manner in an unlocking state. The working platform has the advantages of being simple in structure, convenient to fold and short in 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 equipment for modern aerial work. It can be used by humans or for lifting materials. When entering indoor work, the aerial work platform needs to pass through the door frame or elevator door. In some cases, the height of the whole machine needs to be lowered to achieve this. The guardrails of the working platform on existing aerial work equipment are folded in blocks. When folding, they are folded inward from low to high according to the position of the guardrail hinge point. The guardrails need to be folded strictly in a predetermined order, otherwise the whole machine will not be able to be lowered to the required height due to interference between the guardrails. In addition, the above folding method also has the disadvantages of being time-consuming and inconvenient to operate. Summary of the invention

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

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a working platform, including 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 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, and the working platform also includes:

[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 upside 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] 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 extension platform is rotatably connected to the top end of the second platform base, and the folding locking device can distribute the connecting rod assembly in the vertical direction in the locked state, and 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 arranged on the side wall of the connecting rod;

[0012] A 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. A limiting groove is formed on the sliding sleeve 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 outwardly expanding limit portion and an extending portion arranged on one side of the outwardly expanding limit portion and capable of extending into the limit groove, and the outwardly expanding limit portion is used to limit the distance that the sliding sleeve moves toward the direction close to the connecting rod.

[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 arranged on the sliding ferrule and is perpendicular to the sliding ferrule, and an accommodating cavity distributed along the axial direction and connected to the connecting hole is formed inside the lock seat portion;

[0017] A lock pin part, one end of which extends into the accommodating cavity and can move along the axial direction of the accommodating cavity, and the other end of which 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 arranged 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 is disposed below the first limiting plate and is used to protect the top surface of the upper frame;

[0024] The second protection 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] It can be known from the above technical scheme 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 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 consumed in the working platform state conversion, and increases 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 ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

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

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

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

[0034] Figure 5 This is a schematic diagram of the structure of the extension platform in the 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 the 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 This is a schematic diagram of the upper support rod and the connecting rod being locked in the embodiment of the present application (partially cut away);

[0038] Fig. 9 This is a schematic diagram (partially cut away) of unlocking the upper support rod and the connecting rod in the 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 bar; 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 bar; 2052-third crossbar; 2053-fourth crossbar; 206-lower frame; 207-lower support rod; 2071-accommodation slot; 208-first Two bases; 3-folding locking device; 301-limiting block; 3011-outward limiting part; 3012-extending part; 302-sliding sleeve; 303-limiting groove; 304-locking piece; 3041-locking seat part; 3042-handle part; 3043-locking pin part; 3044-locking end; 4-synchronous connecting device; 401-first limiting plate; 402-second limiting plate; 403-limiting 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 DESCRIPTION

[0041] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0042] The embodiment of the present application provides a work platform, such as Figure 1-Figure 3 As shown, it includes 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 includes a first platform base 5 and a first folding base 7 installed on the first platform base 5, the extension platform 2 includes a second platform base 6 and a second folding base 8 installed on the second platform base 6, and the working platform also includes:

[0043] 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;

[0044] The folding locking device 3 is used to support the first folding base 7 and the second folding base 8 upright on the combination consisting of the first platform base 5 and the second platform base 6 in the locked state, and to enable the first folding base 7 and the second folding base 8 to be folded upside down on the combination consisting of the first platform base 5 and the second platform base 6 in the unlocked state.

[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 crank-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 length direction of the accommodating space. The extension platform 2 is embedded in the accommodating space from the first opening position of the accommodating space, and a second opening toward the accommodating space is formed on one side of the length direction of the extension platform 2. A moving track is provided at the bottom of the accommodating space, and the moving track is arranged along the length direction of the fixed platform 1. A moving wheel that can move 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 work platform changes, and the space size 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 the indoor operation, which is conducive to further expanding the use range 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 the 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 to 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, 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 the folding locking device 3 can distribute the connecting rod assembly 202 in the horizontal direction in the unlocked state.

[0049] Specifically, 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, and 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 accommodation 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 arranged in the accommodation space and is located above the first base 101, the moving wheel is arranged on the second base 208 and is located at one end where the second opening is located, and the lower guardrail module 201 of the extension 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, and the plurality of vertical rods 2011 are distributed at the four corners above the first base 101, and the first cross bar 2012 and the second cross bar 2013 are respectively connected at two ends of the vertical rods 2011 on the same longitudinal side; the lower guardrail module 201 also includes a guardrail assembly 2014 arranged on one side in the transverse direction (the transverse direction in this embodiment is consistent with the length direction of the fixed platform 1 and the extension platform 2) and located between the two vertical rods 2011, and the 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 also includes an upper frame 205, which includes a longitudinal rod 2051 and a third crossbar 2052 and a fourth crossbar 2053 that are spaced apart and parallel in the longitudinal direction. The two ends of the longitudinal rod 2051 are respectively connected to the third crossbar 2052 and the fourth crossbar 2053. The second opening is formed at one end of the third crossbar 2052 and the fourth crossbar 2053 that is away from the longitudinal rod 2051. The upper support rod assembly 204 is arranged below the upper frame 205. The top and bottom ends 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 a vertical state as a whole, the fixed platform 1 and the extension platform 2 are in a non-folded state; 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 state. In this case, the height of the work platform is reduced to the same length as 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 in the longitudinal direction. 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 for rotationally connecting 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 arranged 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 arranged 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 groove 303.

[0055] Specifically, Figure 6-Figure 9 As shown, the limit block 301 is arranged 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 withdraws from the limit groove 303, the upper support rod 2041 and the connecting rod 2021 can rotate relative to each other, and a lateral pushing 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 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 which is arranged on one side of the outward-expanding limit portion 3011 and can extend into the limit groove 303, and 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 a 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 forms 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 portion 3041 is disposed on the sliding sleeve 302 and is perpendicular to the sliding sleeve 302. The lock seat portion 3041 has an accommodating cavity distributed along the axial direction and connected to the connecting hole.

[0060] The handle portion 3042 is arranged on a side of the lock seat 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 . One 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] Furthermore, in the present embodiment, the locking member 304 also includes a spring portion, and 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, and 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 larger than the outer diameter 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 surface of the locking body, and the other end of the spring portion abuts against the bottom wall of the accommodating cavity; the lock seat portion 3041 is formed with an inclined surface at one end away from the sliding sleeve 302, the handle portion 3042 is plate-shaped and connected to the outer peripheral wall of the locking pin portion 3043, and there is no need to lock 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 abuts against the tip position of the locking pin part 3043 away from one end of the sliding sleeve 302, and the spring part is in a compressed state at this time; 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, and 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 provided with a receiving groove 2071 which 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 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.

[0065] Specifically, in this embodiment, the lower frame 206 of the first platform base 5 and a plurality of 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 a plurality of 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 provide a certain support to the connecting rod 2021, which is beneficial to making the vertical state of the connecting rod 2021 more stable; further, the distance from the rotational 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 a 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 a folded state, thereby ensuring the overall stability of the fixed platform 1 and the extension platform 2 when they are in a folded state.

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

[0067] A first limiting plate 401 is disposed on the top of the upper frame 205 of 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 and penetrates along the length direction of the fixed platform 1 and the extension platform 2. The limiting slot 303 is used to clamp a part of the upper frame 205 of the other one of the fixed platform 1 and the extension platform 2.

[0069] Specifically, the axial direction of the limit slot 403 is horizontal, the opening of the limit slot 403 faces the longitudinal side, and part of the third cross bar 2052 or the fourth cross bar 2053 in the upper frame 205 passes through the limit slot 403. When the extension platform 2 moves relative to the fixed platform 1, the third cross bar 2052 or the fourth cross bar 2053 moves relative to the limit 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 or the extension platform 2, and the first limit plate 401 and / or the second limit plate 402 can apply force to the other of the fixed platform 1 or the extension platform 2 to drive the other of the fixed platform 1 or the extension platform 2 to change the state accordingly. The above-mentioned synchronous connection device 4 has a simple structure and can play a good synchronization role in the movement change 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 disposed 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 the present 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 arranged on the fixed platform 1 and a second folding and locking device arranged on the extension platform 2 .

[0076] Specifically, a gap is formed between the two longitudinal sides of the extension platform 2 and the fixed platform 1. This arrangement is conducive to improving 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 is convenient for the operator to simultaneously unlock the upper support rod 2041 and the connecting rod 2021 of the fixed platform 1 and the extension platform 2, thereby improving the operational convenience of the state change of the fixed platform 1 and the extension platform 2.

[0077] Another embodiment of the present application provides an aerial work equipment, which includes the work platform of any of the above embodiments, wherein the aerial work equipment includes but is not limited to a scissors-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.

[0078] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this 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 reciprocate along the length direction of the platform, characterized in that: The fixed platform (1) comprises a first platform base (5) and a first folding base (7) mounted on the first platform base (5); the extension platform (2) comprises a second platform base (6) and a second folding base (8) mounted on the second platform base (6); and the working platform further comprises: 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); The 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.

2. The working platform according to claim 1, characterized in that: The first folding base (7) and the second folding base (8) both comprise: An upper guardrail module (203), wherein the bottom of the upper guardrail module (203) has an upper support rod assembly (204) distributed vertically; A 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), 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 2, characterized in that: The upper guardrail module (203) further comprises an upper frame (205), the upper support rod assembly (204) comprises 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) comprises 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) comprises: A limit block (301) is arranged on a side wall of the connecting rod (2021); A 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), and a limiting groove (303) is formed on the sliding sleeve (302) for part of the limiting block (301) to extend into; A locking member (304) is arranged 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 groove (303).

4. The working platform according to claim 3, characterized in that: The limit block (301) comprises an outwardly expanding limit portion (3011) and an extending portion (3012) arranged on one side of the outwardly expanding limit portion (3011) and capable of extending into the limit groove (303); the outwardly 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).

5. The working platform according to claim 3, 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 arranged on the sliding sleeve (302) and is perpendicular to the sliding sleeve (302), and an accommodating cavity distributed along the axial direction and connected to the connecting hole is formed inside the lock seat portion (3041); A handle portion (3042) is arranged on a side of the lock seat portion (3041) away from the sliding sleeve (302); The locking pin portion (3043) is movably arranged in the accommodating cavity and connected to the handle portion (3042); one 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).

6. The working platform according to claim 2, 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) being formed with a receiving groove (2071) which 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), and one 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).

7. The working platform according to claim 3, 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, and a limiting slot (403) is formed between the first limiting plate (401) and the second limiting plate (402) and passes through the fixed platform (1) and the extension platform (2) in the length direction, and the limiting slot (303) is used to clamp the part of the upper frame (205) in the other of the fixed platform (1) and the extension platform (2).

8. The working platform according to claim 7, characterized in that: The synchronous connection device (4) further comprises: A first protective pad (404), arranged below the first limiting plate (401) and used to protect the top surface of the upper frame (205); A 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).

9. The work platform according to any one of claims 1 to 8, characterized in that: The number of the folding and locking devices (3) is multiple, 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).

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

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