Work platform and aerial work equipment

Abstract

The present application relates to the technical field of aerial work equipment. Disclosed are a work platform and aerial work equipment. The work platform comprises a fixed platform and an extension platform, wherein the extension platform is embedded in the fixed platform and is capable of reciprocating in the direction of length of the platform; the fixed platform comprises a first platform base and a first folding chassis; and the extension platform comprises a second platform base and a second folding chassis. The work platform further comprises: a synchronous connection device configured to connect the first folding chassis of the fixed platform and the second folding chassis of the extension platform; and a folding and locking device which is configured to enable, in a locked state, the first folding chassis and the second folding chassis to be vertically supported on a combined body composed of the first platform base and the second platform base, and enable, in an unlocked state, the first folding chassis and the second folding chassis to be folded upside down on the combined body composed of the first platform base and the second platform base. The work platform has a simple structure, is easy to fold, and has a short folding time.

Description

work platforms and aerial work equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411454017.4, filed on October 17, 2024, entitled "Working Platform and Aerial Work Equipment", the entire contents of which are incorporated herein by reference.

[0003] This application claims priority to Chinese Patent Application No. 202422523345.7, filed on October 17, 2024, entitled "Working Platform and Aerial Work Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0004] This application belongs to the technical field of aerial work equipment, specifically relating to a work platform and aerial work equipment. Background Technology

[0005] Aerial work platforms (such as aerial work vehicles) are a major type of support equipment for modern aerial work. They can be used manually or to lift and lower materials. When aerial work platforms enter indoor operations, they need to pass through door frames or elevator doors, and in some cases, the overall height of the machine needs to be lowered to achieve this. The existing aerial work platform's guardrails fold in sections, folding inwards from the lowest to the highest point according to the position of the guardrail hinges. The guardrails must be folded in a strict order; otherwise, interference between the guardrails will prevent the machine from lowering to the required height. In addition, the above folding method also has the disadvantages of being time-consuming and inconvenient to operate.

[0006] Summary of the Invention

[0007] The purpose of this application is to provide a work platform and aerial work equipment, which has the advantages of simple structure, easy folding and short folding time.

[0008] To achieve the above objectives, a first aspect of this application provides a work platform, including a fixed platform and an extension platform. The extension platform is embedded in the fixed platform and is capable of reciprocating along the length of the platform. The fixed platform includes a first platform base and a first folding base mounted on the first platform base. The extension platform includes a second platform base and a second folding base mounted on the second platform base. The work platform further includes:

[0009] A synchronous connection device is used to connect the first folding base of the fixed platform and the second folding base of the extension platform;

[0010] The folding locking device is used to enable the first folding base and the second folding base to stand upright on the assembly composed 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 fold down on the assembly composed of the first platform base and the second platform base in the unlocked state.

[0011] In embodiments of this application, both the first folding base and the second folding base include:

[0012] The upper guardrail module has vertically distributed upper support rod assemblies at its bottom;

[0013] The connecting rod assembly has its top end rotatably connected to the upper support rod assembly, its bottom end rotatably connected to the top end of the first platform base, and its bottom end rotatably connected to the top end of the second platform base. The folding locking device can make the connecting rod assembly vertically distributed in the locked state and horizontally distributed in the unlocked state.

[0014] In embodiments of this application, the upper guardrail module further includes an upper frame, the upper support rod assembly includes multiple upper support rods distributed at the four corners of the bottom of the upper frame, the connecting rod assembly includes multiple connecting rods, the top ends of the multiple connecting rods are rotatably connected to the multiple upper support rods one by one, and the folding locking device includes:

[0015] The limiting block is set on the side wall of the connecting rod;

[0016] A sliding sleeve is fitted on the outside 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 to allow a portion of the limiting block to extend into it.

[0017] A locking element is provided on the sliding sleeve and is used to lock the sliding sleeve at a preset position on the upper support rod. When the sliding sleeve is locked at the preset position, the limiting block retracts from the limiting groove.

[0018] In the embodiments of this application, the limiting block includes an outwardly expanding limiting part and an extension part disposed on one side of the outwardly expanding limiting part and capable of extending into the limiting groove. The outwardly expanding limiting part is used to limit the distance that the sliding sleeve can move toward the direction of the connecting rod.

[0019] In the embodiments of this application, the upper support rod has a limiting hole at a preset position, the sliding sleeve has a connecting hole that can communicate with the limiting hole, and the locking member includes:

[0020] The locking seat is disposed on the sliding sleeve and perpendicular to the sliding sleeve. The interior of the locking seat has accommodating cavities distributed along the axial direction and communicating with the connecting hole.

[0021] The locking pin has one end extending into the receiving cavity and being able to move axially along the receiving cavity, while the other end of the locking pin protrudes from the locking seat.

[0022] In the embodiments of this application, both the first platform base and the second platform base include a lower frame and a plurality of lower support rods distributed vertically at the four corners of the lower frame. The lower support rods have receiving grooves with openings facing the fixed platform, extending the length of the platform, and capable of accommodating a portion of the connecting rod. The end of the connecting rod away from the upper support rod is rotatably connected to the middle position of the lower support rod.

[0023] In embodiments of this application, the synchronous connection device includes:

[0024] The first limiting plate is set at the top of the upper frame of either the fixed platform or the extended platform;

[0025] The second limiting plate is located at the bottom of the upper frame where the first limiting plate is located. A limiting groove is formed between the first limiting plate and the second limiting plate, which extends along the length of the fixed platform and the extended platform. The limiting groove is used to lock a part of the upper frame of the other of the fixed platform and the extended platform.

[0026] In embodiments of this application, the synchronous connection device further includes:

[0027] The first protective pad is located below the first limiting plate and is used to protect the top surface of the upper frame;

[0028] The second protective pad is positioned above the second limiting plate and is used to protect the bottom surface of the upper frame.

[0029] In the embodiments of this application, there are multiple folding locking devices, including a first folding locking device disposed on a fixed platform and a second folding locking device disposed on an extension platform.

[0030] A second aspect of this application provides an aerial work platform, which includes the aforementioned work platform.

[0031] As shown in the above technical solution, the work platform includes a fixed platform, an extension platform, a folding locking device, and a synchronous connecting device. The extension platform is embedded in the fixed platform and can reciprocate along the length of the platform. The fixed platform includes a first platform base and a first folding base mounted on the first platform base. The extension platform includes a second platform base and a second folding base mounted on the second platform base. The synchronous connecting device connects the first folding base of the fixed platform and the second folding base of the extension platform. The folding locking device allows the first and second folding bases to stand upright on the assembly formed by the first and second platform bases in the locked state, and allows the first and second folding bases to fold down onto the assembly formed by the first and second platform bases in the unlocked state. The fixed platform and extension platform of this work platform can change state as a whole, improving the ease of operation for state transitions, reducing the time spent on state transitions, and enhancing the user experience of the work platform.

[0032] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0033] The accompanying drawings are provided to illustrate the present application and form part of the specification. They are used together with the following detailed description to explain the present application, but do not constitute a limitation thereof. In the drawings:

[0034] Figure 1 is a schematic diagram of the first structure of the work platform in an embodiment of this application (the work platform is in an extended state);

[0035] Figure 2 is a schematic diagram of the first structure of the work platform in an embodiment of this application (the work platform is in an open state);

[0036] Figure 3 is a schematic diagram of the first structure of the work platform in an embodiment of this application (the work platform is in a folded state);

[0037] Figure 4 is a schematic diagram of the structure of the fixed platform in an embodiment of this application;

[0038] Figure 5 is a schematic diagram of the structure of the extension platform in the embodiment of this application;

[0039] Figure 6 is a schematic diagram of the upper support rod and connecting rod being locked in an embodiment of this application;

[0040] Figure 7 is a schematic diagram of the upper support rod and connecting rod being unlocked in an embodiment of this application;

[0041] Figure 8 is a schematic diagram (partially cut open) showing the upper support rod and connecting rod being locked in an embodiment of this application;

[0042] Figure 9 is a schematic diagram (partially cut open) showing the upper support rod and connecting rod being unlocked in an embodiment of this application. Detailed Implementation

[0043] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this application.

[0044] An embodiment of this application provides a work platform, as shown in Figures 1-3, including a fixed platform 1 and an extended platform 2. The extended platform 2 is embedded in the fixed platform 1 and can reciprocate along the length of the platform. The fixed platform 1 includes a first platform base 5 and a first folding base 7 mounted on the first platform base 5. The extended platform 2 includes a second platform base 6 and a second folding base 8 mounted on the second platform base 6. The work platform also includes:

[0045] Synchronous connection device 4 is used to connect the first folding base 7 of the fixed platform 1 and the second folding base 8 of the extension platform 2;

[0046] The folding locking device 3 is used to enable the first folding base 7 and the second folding base 8 to stand upright on the assembly composed 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 fold down on the assembly composed of the first platform base 5 and the second platform base 6 in the unlocked state.

[0047] Specifically, the work platform in this embodiment is applicable to aerial work equipment, which includes, but is not limited to, scissor lifts, articulated boom lifts, telescopic boom lifts, vehicle-mounted aerial work platforms, spider lifts, and mast lifts. The fixed platform 1 has an internal accommodating space with a first opening along its length. The extension platform 2 is inserted into the accommodating space through the first opening. A second opening facing the accommodating space is formed on one side of the extension platform 2 along its length. A moving track is provided at the bottom of the accommodating space, running along the length of the fixed platform 1. The extension platform 2 has wheels at its bottom that can move along the moving track. When the extension platform 2 moves relative to the fixed platform 1, the overall length of the work platform changes, and the internal space of both the fixed platform 1 and the extension platform 2 changes. This design improves the practicality of the work platform and expands its application range. Furthermore, locking or unlocking the folding locking device 3 allows both the fixed platform 1 and the extended platform 2 to be folded. When the folding locking device 3 is unlocked, the fixed platform 1 and the extended platform 2 are in a folded state, and the connected first folding base 7 and second folding base 8 can fold down onto the assembly formed by the first platform base 5 and the second platform base 6. The overall height of the work platform is reduced, allowing it to pass smoothly through door frames or elevator doors when entering indoor work areas, which helps to further expand the scope of use of the work platform. When the folding locking device 3 is locked, the fixed platform 1 and the extended platform 2 are in an open state, and the connected first folding base 7 and second folding base 8 are upright supported on the assembly formed by the first platform base 5 and the second platform base 6. The synchronous connection device 4 allows the operator to change the overall state of the fixed platform 1 and the extended platform 2 simply by applying force to the fixed platform 1 or the extended platform 2. Even if the fixed platform 1 and the extended platform 2 are simultaneously changed from an open state to a folded state, or simultaneously changed from a folded state to an open state, the above-mentioned work platform allows the operator to stand inside the fixed platform 1 and the extended platform 2 to apply force to change the state of the fixed platform 1 and the extended platform 2, which improves the operational convenience of the work platform state transition, reduces the time spent on the work platform state transition, and increases the user experience of the work platform.

[0048] In one embodiment of this application, both the first folding base 7 and the second folding base 8 include:

[0049] The upper guardrail module 203 has an upper support rod assembly 204 distributed vertically at its bottom;

[0050] The connecting rod assembly 202 is rotatably connected to the upper support rod assembly 204 at its top end. 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 vertically in the locked state and can make the connecting rod assembly 202 distributed horizontally in the unlocked state.

[0051] Specifically, as shown in Figures 1 and 4, there are two lower guardrail modules 201 in this embodiment. 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 disposed 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. As shown in Figures 1 and 5, the second platform base 6 includes a second base 208 and another lower guardrail module 201. The second base 208 is disposed in the accommodating space and is located above the first base 101. The moving wheel is disposed on the second base 208 and is located at one end where the second opening is located. The lower guardrail module 201 of the extended platform 2 is disposed above the second base 208. The lower guardrail module 201 includes multiple vertical bars 2011, a first horizontal bar 2012, and a second horizontal bar 2013. The multiple vertical bars 2011 are distributed at the four corners above the first base 101. The two ends of the first horizontal bar 2012 and the second horizontal bar 2013 are respectively connected to two vertical bars 2011 on the same longitudinal side. The lower guardrail module 201 also includes a guardrail assembly 2014 disposed on the transverse side (in this embodiment, the transverse side is consistent with the length direction of the fixed platform 1 and the extended platform 2) and located between the two vertical bars 2011. The first opening is formed at the end of the first horizontal bar 2012 and the second horizontal bar 2013 away from the guardrail assembly 2014. The upper guardrail module 203 also includes an upper frame 205, which includes longitudinal bars 2051 and third and fourth horizontal bars 2052 and 2053 distributed parallel to each other along the longitudinal direction. The two ends of the longitudinal bars 2051 are connected to the third and fourth horizontal bars 2052 and 2053, respectively. A second opening is formed at the end of the third and fourth horizontal bars 2052 and 2053 away from the longitudinal bars 2051. The upper support rod assembly 204 is located 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 state, the fixed platform 1 and the extended platform 2 are in an open state. If it is necessary to fold the fixed platform 1 and the extended platform 2, the connecting rod assembly 202 can be subjected to force and transformed into a horizontal state. In this case, the height of the working platform is lowered to be consistent with the length of the connecting rod assembly 202.

[0052] In one embodiment of this application, the working platform further includes a first connecting shaft and a second connecting shaft, both distributed longitudinally. The first connecting shaft is used to rotatably connect the bottom end of the connecting rod assembly 202 to the top end of the lower guardrail module 201. The upper support rod assembly 204 is rotatably connected to the top end of the connecting rod assembly 202 to rotatably connect the upper support rod assembly 204 to the top end of the connecting rod assembly 202. The above arrangement causes the connecting rod assembly 202 to drive the upper guardrail module 203 to change position laterally when rotating.

[0053] In one embodiment of this 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 distributed vertically and located at the bottom four corners 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 being rotatably connected to the plurality of upper support rods 2041 in a one-to-one correspondence, and the folding locking device 3 includes:

[0054] Limiting block 301 is set on the side wall of connecting rod 2021;

[0055] The sliding sleeve 302 is sleeved on the outside of the upper support rod 2041 and can move along the axial direction of the upper support rod 2041. A limiting groove 303 is formed on the sliding sleeve 302, into which a portion of the limiting block 301 can extend.

[0056] The locking element 304 is disposed on the sliding sleeve 302 and is used to lock the sliding sleeve 302 at a preset position on the upper support rod 2041. When the sliding sleeve 302 is locked at the preset position, the limiting block 301 is disengaged from the limiting groove 303.

[0057] Specifically, as shown in Figures 6-9, the limiting block 301 is disposed on the longitudinal side wall of the connecting rod 2021, and the limiting groove 303 is U-shaped with 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 limiting block 301 is engaged in the limiting groove 303. The sliding sleeve 302 simultaneously engages 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 remains in the same position. In a vertical position, the fixed platform 1 and the extended platform 2 are in an open 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 with the locking member 304, then part of the limiting block 301 will exit from the limiting 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, and the connecting rod 2021 can rotate. The upper guardrail module 203 moves laterally and downwards at the same time, so that the fixed platform 1 and the extended platform 2 change from an open state to a folded state.

[0058] In one embodiment of this application, the limiting block 301 includes an outwardly expanding limiting portion 3011 and an extension portion 3012 disposed on one side of the outwardly expanding limiting portion 3011 and capable of extending into the limiting groove 303. The outwardly expanding limiting portion 3011 is used to limit the distance that the sliding sleeve 302 moves toward the direction of the connecting rod 2021.

[0059] Specifically, the outwardly expanding limiting part 3011 is located at the end of the extending part 3012 away from the upper support rod 2041 and expands outward in the direction away from the extending part 3012. When the locking member 304 is not in the preset position, the side of the sliding sleeve 302 near the limiting block 301 is engaged with the outwardly expanding limiting part 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, thus ensuring the reliability of the folding locking device 3.

[0060] In one embodiment of this application, the upper support rod 2041 has a limiting hole 2042 at a preset position, the sliding sleeve 302 has a connecting hole that can communicate with the limiting hole 2042, and the locking member 304 includes:

[0061] The locking seat 3041 is disposed on the sliding sleeve 302 and is perpendicular to the sliding sleeve 302. The interior of the locking seat 3041 has a receiving cavity that is distributed along the axial direction and communicates with the connecting hole.

[0062] The handle 3042 is located on the side of the lock seat 3041 away from the sliding sleeve 302;

[0063] The locking pin 3043 is movably inserted into the receiving cavity and connected to the handle 3042. The end of the locking pin 3043 away from the handle 3042 is formed with a locking end 3044 that can pass through the connecting hole and extend into the limiting hole 2042.

[0064] Specifically, when the operator applies force to the handle 3042, the locking pin 3043 moves axially along the receiving cavity, thereby causing the locking end 3044 to extend into or exit 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 exits from the limiting hole 2042, the sliding sleeve 302 and the upper support rod 2041 can be unlocked.

[0065] Furthermore, in this 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. 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 periphery of the connecting rod body. One end of the spring portion abuts against the side end face of the locking body, and the other end of the spring portion abuts against the bottom wall of the receiving cavity. The lock seat portion 3041 has a beveled surface at the end away from the sliding sleeve 302. The handle portion 3042 is plate-shaped and connected to the outer periphery of the locking pin portion 3043, and does not require locking. When sliding sleeve 302 and upper support rod 2041 are in motion, pull handle 3042 outward and rotate it to a preset direction so that the side wall of handle 3042 abuts against the tip of locking pin 3043 away from sliding sleeve 302. At this time, spring is compressed. When it is necessary to lock sliding sleeve 302 and upper support rod 2041, move sliding sleeve 302 to a preset position and rotate handle 3042. Locking pin 3043 moves axially along the receiving cavity under the elastic force of spring. Locking end 3044 passes through connecting hole and extends into limiting hole 2042, thereby locking sliding sleeve 302 and upper support rod 2041.

[0066] In one embodiment of this application, both the first platform base 5 and the second platform base 6 include a lower frame 206 and a plurality of lower support rods 207 distributed vertically at the four corners of the top of the lower frame 206. The lower support rods 207 have a receiving groove 2071 with an opening facing the fixed platform 1 and extending the length of the platform 2, which 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.

[0067] Specifically, in this embodiment, the lower frame 206 of the first platform base 5 and a plurality of lower support rods 207 distributed vertically at the four corners of the top of the lower frame 206 together form the lower guardrail module 201 in the first platform base 5; the lower frame 206 of the second platform base 6 and a plurality of lower support rods 207 distributed vertically at the four corners of the top of the lower frame 206 together form the lower guardrail module 201 in the second platform base 6. The lower frame 206 consists of multiple vertical bars 2011, a first horizontal bar 2012, a second horizontal bar 2013, and a guardrail assembly 2014. Multiple lower support bars 207 are respectively installed at the top of the multiple vertical bars 2011. Some lower support bars 207 are fixed to the vertical bars 2011 (e.g., welded together). The openings of the receiving grooves 2071 of the multiple lower support bars 207 face the same direction, such as uniformly facing one side laterally. However, when the connecting rod 2021 rotates relative to the lower support bars 207, the connecting rod 2021 can only rotate towards the side where the opening of the receiving groove 2071 is located. When the connecting rod 2021 is in a vertical state, the receiving groove 2071... The bottom wall of 71 can provide some support for the connecting rod 2021, which helps to make the vertical state of the connecting rod 2021 more stable. Furthermore, the distance from the rotating connection point of the lower support rod 207 and the connecting rod 2021 to the top surface of the lower support rod 207 is the same as the height of the upper support rod 2041. This allows the lower support rod 207 to 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, thus ensuring the overall stability of the fixed platform 1 and the extension platform 2 when they are in the folded state.

[0068] In one embodiment of this application, the synchronous connection device 4 includes:

[0069] The first limiting plate 401 is set on the top of the upper frame 205 of one of the fixed platform 1 and the extension platform 2;

[0070] The second limiting plate 402 is located at the bottom of the upper frame 205 where the first limiting plate 401 is located. A limiting groove 403 is formed between the first limiting plate 401 and the second limiting plate 402, which extends along the length direction of the fixed platform 1 and the extension platform 2. The limiting groove 403 is used to lock a part of the upper frame 205 of the other of the fixed platform 1 and the extension platform 2.

[0071] Specifically, the axial direction of the limiting slot 403 is transverse, and the opening of the limiting slot 403 faces the longitudinal direction. 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 and 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 make a corresponding state change. The above-mentioned synchronous connection device 4 has a simple structure and can play a good synchronizing role in the movement changes of the fixed platform 1 or the extension platform 2.

[0072] In one embodiment of this application, the number of synchronous connection devices 4 is four. Two synchronous connection devices 4 are respectively disposed on the third crossbar 2052 and the fourth crossbar 2053 of the fixed platform 1, and the openings of the limiting slots 403 of the two synchronous connection devices 4 face the extension platform 2. The other two synchronous connection devices 4 are respectively disposed on the third crossbar 2052 and the fourth crossbar 2053 of the extension platform 2, and the openings of the limiting slots 403 of the two synchronous connection devices 4 face the fixed platform 1. The above arrangement further enhances the movement stability and synchronization of the fixed platform 1 and the extension platform 2.

[0073] In one embodiment of this application, the synchronous connection device 4 further includes:

[0074] The first protective pad 404 is located below the first limiting plate 401 and is used to protect the top surface of the upper frame 205.

[0075] The second protective pad 405 is positioned above the second limiting plate 402 and is used to protect the bottom surface of the upper frame 205.

[0076] Specifically, in this embodiment, the first protective pad 404 and the second protective pad 405 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. Furthermore, in order to further prevent the third crossbar 2052 and the fourth crossbar 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.

[0077] In one embodiment of this application, there are multiple folding locking devices 3, including a first folding locking device disposed on the fixed platform 1 and a second folding locking device disposed on the extension platform 2.

[0078] Specifically, a gap is formed between the longitudinal sides of the extension platform 2 and the fixed platform 1. This arrangement helps to improve the smoothness of the lateral movement of the extension platform 2. The first folding locking device and the second folding locking device are set on the same lateral side, which makes it convenient for the operator to unlock the upper support rod 2041 and the connecting rod 2021 of the fixed platform 1 and the extension platform 2 at the same time, thereby improving the operational convenience of changing the state of the fixed platform 1 and the extension platform 2.

[0079] Another embodiment of this application provides an aerial work platform, which includes the work platform in any of the above embodiments. The aerial work platform includes, but is not limited to, scissor lifts, articulated boom lifts, telescopic boom lifts, vehicle-mounted aerial work platforms, spider lifts, and mast lifts.

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

[0081] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

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

Claims

1. A working platform, comprising a fixed platform (1) and an extended platform (2), wherein the extended platform (2) is embedded in the fixed platform (1) and is capable of reciprocating along the length 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 extended platform (2) includes a second platform base (6) and a second folding base (8) mounted on the second platform base (6); the working platform further includes: Synchronous connection device (4) is used to connect 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 stand upright on the assembly composed 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 fold down on the assembly composed of the first platform base (5) and the second platform base (6) in the unlocked state.

2. The operating platform according to claim 1, characterized in that, Both the first folding base (7) and the second folding base (8) include: The upper guardrail module (203) has an upper support rod assembly (204) distributed vertically at its bottom; The connecting rod assembly (202) is rotatably connected to the upper support rod assembly (204) at its top end, and rotatably connected to the top end of the connecting rod assembly (202) of the fixed platform (1) at its bottom end, and rotatably connected to the top end of the first platform base (5) at its bottom end, and rotatably connected to the top end of the connecting rod assembly (202) of the extension platform (2) at its bottom end, and rotatably connected to the top end of the second platform base (6). The folding locking device (3) is capable of distributing the connecting rod assembly (202) vertically in the locked state and horizontally in the unlocked state.

3. The operating platform according to claim 2, characterized in that, The upper guardrail module (203) further includes an upper frame (205), the upper support rod assembly (204) includes multiple upper support rods (2041) distributed vertically and located at the four bottom corners of the upper frame (205), the connecting rod assembly (202) includes multiple connecting rods (2021), the top ends of the multiple connecting rods (2021) are rotatably connected to the multiple upper support rods (2041) one by one, and the folding locking device (3) includes: A limiting block (301) is provided on the side wall of the connecting rod (2021); A sliding sleeve (302) is sleeved on the outside of the upper support rod (2041) and can move along the axial direction of the upper support rod (2041). A limiting groove (303) is formed on the sliding sleeve (302) into which part of the limiting block (301) can extend. A locking member (304) is disposed on the sliding sleeve (302) and used to lock the sliding sleeve (302) at a preset position on the upper support rod (2041). When the sliding sleeve (302) is locked at the preset position, the limiting block (301) is disengaged from the limiting groove (303).

4. The operating platform according to claim 3, characterized in that, The limiting block (301) includes an outwardly expanding limiting part (3011) and an extension part (3012) disposed on one side of the outwardly expanding limiting part (3011) and capable of extending into the limiting groove (303). The outwardly expanding limiting part (3011) is used to limit the distance that the sliding sleeve (302) can move in the direction close to the connecting rod (2021).

5. The operating platform according to claim 3, characterized in that, The upper support rod (2041) has a limiting hole (2042) at the preset position, and the sliding sleeve (302) has a connecting hole that can communicate with the limiting hole (2042). The locking member (304) includes: A locking seat (3041) is disposed on the sliding sleeve (302) and perpendicular to the sliding sleeve (302). The interior of the locking seat (3041) has a receiving cavity that is distributed along the axial direction and communicates with the connecting hole. The handle (3042) is located on the side of the lock seat (3041) away from the sliding sleeve (302); A locking pin (3043) is movably inserted into the receiving cavity and connected to the handle (3042). The end of the locking pin (3043) away from the handle (3042) is formed with a locking end (3044) that can pass through the connecting hole and extend into the limiting hole (2042).

6. The operating platform according to claim 2, characterized in that, Both the first platform base (5) and the second platform base (6) include a lower frame (206) and a plurality of lower support rods (207) distributed vertically at the four corners of the top of the lower frame (206). The lower support rods (207) have a receiving groove (2071) with an opening facing one side of the fixed platform (1) and the extension platform (2) along the length direction and capable of accommodating 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).

7. The operating platform according to claim 3, characterized in that, The synchronous connection device (4) includes: The first limiting plate (401) is disposed on the top of the upper frame (205) of one of the fixed platform (1) and the extension platform (2); The second limiting plate (402) is disposed at the bottom of the upper frame (205) where the first limiting plate (401) is located. A limiting groove (403) is formed between the first limiting plate (401) and the second limiting plate (402) and extends along the length direction of the fixed platform (1) and the extension platform (2). The limiting groove (403) is used to lock a part of the upper frame (205) of the other of the fixed platform (1) and the extension platform (2).

8. The operating platform according to claim 7, characterized in that, The synchronous connection device (4) further includes: The 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); The second protective pad (405) is disposed above the second limiting plate (402) and is used to protect the bottom surface of the upper frame (205).

9. The operating platform according to any one of claims 1-8, characterized in that, The number of the folding locking devices (3) is multiple, and the multiple folding locking devices (3) include a first folding locking device disposed on the fixed platform (1) and a second folding locking device disposed on the extension platform (2).

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

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