Engineering machinery turntable assembly and engineering machinery

Abstract

A turntable assembly for construction machinery and the construction machinery itself are disclosed. The turntable assembly includes a turntable base, at least one walkway plate, and at least one guardrail. The walkway plate has at least one reinforcing rib on its side. The walkway plate is rotatably connected to the turntable base and has a first rotatable state and a second rotatable state. In the first rotatable state, the walkway plate is locked to the turntable side of the turntable base. In the second rotatable state, the walkway plate is for pedestrian access. When the walkway plate is in the first rotatable state, the guardrail is connected to the side of the walkway plate. When the walkway plate is in the second rotatable state, the guardrail is connected to the walkway plate, and a walking passage is formed between the guardrail, the walkway plate, and the turntable base. The guardrail of this construction machinery turntable assembly does not need to be detached from the construction machinery, does not require a designated storage location for the guardrail, does not require additional transport protection devices, and is less prone to loss or damage.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, and in particular to an engineering machinery turntable assembly and engineering machinery. Background Technology

[0002] To facilitate loading and unloading of construction machinery, or to move from one area of ​​the construction machinery to another, access devices need to be installed on the construction machinery.

[0003] The existing passageway device includes a walkway and a guardrail. The walkway is foldably connected to the turntable assembly, and the guardrail is detachably connected to the walkway. The guardrail, the walkway, and the turntable assembly form a walking passageway for people to walk on.

[0004] When construction machinery is in operation, the walkway needs to be flipped to a horizontal position and guardrails installed on it. When transporting the machinery, the walkway and guardrails need to be removed from the turntable assembly, or only the guardrails need to be removed. If both the walkway and guardrails are removed, not only is the dismantling and installation work enormous, but the removed walkway and guardrails also have no fixed place to be placed, and protective devices need to be prepared for transport to protect them. The walkway, guardrails, and protective devices are prone to loss or damage. If only the guardrails are removed, the walkway needs to be flipped to the side of the turntable assembly, increasing the width of the turntable assembly and affecting the width limit. The removed guardrails also have no fixed place to be placed, and protective devices need to be prepared for transport to protect them. The guardrails and protective devices are prone to loss or damage. Utility Model Content

[0005] In view of this, the present invention provides an engineering machinery turntable assembly in which the guardrail does not need to be removed from the engineering machinery, there is no need to prepare a place to stack the guardrail, there is no need to add transportation protection devices, and the guardrail is not easy to be lost or damaged.

[0006] An engineering machinery turntable assembly includes a turntable base, at least one walkway plate, and at least one guardrail. The walkway plate has at least one reinforcing rib structure on its side. The walkway plate is rotatably connected to the turntable base. The walkway plate has a first rotatable state and a second rotatable state. In the first rotatable state, the walkway plate is locked to the turntable side of the turntable base. In the second rotatable state, the walkway plate is for people to walk on. When the walkway plate is in the first rotatable state, the guardrail is connected to the side of the walkway plate. When the walkway plate is in the second rotatable state, the guardrail is connected to the walkway plate. A walking passage is formed between the guardrail, the walkway plate, and the turntable base.

[0007] Optionally, when the walkway is in the first flipped state, the guardrail is connected to the side of the walkway using a fastening assembly; when the walkway is in the second flipped state, the guardrail is connected to the walkway using the fastening assembly.

[0008] Optionally, at least two mounting cylinders are fixed on the side of the walkway away from the turntable base, the guardrail includes at least two support columns, and a limit plate is fixed on the outer wall of each support column. When the walkway is in the second flipped state, the end of each support column is installed in the mounting cylinder, the limit plate abuts against the upper end of the mounting cylinder, and the fastening assembly is connected to the end of the support column.

[0009] Optionally, each of the support columns has a first threaded hole at its end. The fastening assembly includes a pad and a first bolt. The pad is disposed at the lower end of the mounting cylinder, and the first bolt passes through the pad and engages with the first threaded hole.

[0010] Optionally, the side of the walkway is provided with at least two second threaded holes, and the guardrail is provided with at least two through holes; when the walkway is in the first flipped state, the guardrail is set on the side of the walkway, and each of the through holes is corresponding to each of the second threaded holes, the pad is corresponding to the through holes, and the first bolt passes through the pad and the through holes and is connected to the second threaded holes.

[0011] Optionally, a limiting frame is connected to the side of the walkway, and a limiting groove is formed between the limiting frame and the walkway. The limiting frame is provided with at least two second threaded holes, and the guardrail is provided with a connector located between two adjacent support columns. When the walkway is in the first flipped state, the guardrail is set on the side of the walkway, the connector is set in the limiting groove, the pad is correspondingly set with the second threaded holes, the first bolt passes through the pad and is connected to the second threaded holes, and the first bolt cooperates with the limiting frame to lock the guardrail.

[0012] Optionally, the walkway includes a first flange adjacent to the turntable base and a second flange opposite to the first flange. Both the first flange and the second flange are provided with a plurality of grooves for accommodating the guardrail frame. When the guardrail is connected to the side of the walkway, the guardrail frame is correspondingly disposed in each of the grooves.

[0013] Optionally, the turntable base is provided with at least two leveling seats, each of the leveling seats is provided with at least one third threaded hole and a second bolt that engages with the third threaded hole; when the platform is in the second flipped state, the edge of the platform abuts against the second bolt, and rotating the second bolt can adjust the horizontal state of the platform.

[0014] Optionally, the turntable base is provided with at least two leveling seats, each leveling seat is provided with at least one third threaded hole and a second bolt that engages with the third threaded hole, and the edge of the platform plate is provided with at least two fourth threaded holes and third bolts that engage with the fourth threaded holes; when the platform plate is in the second flipped state, the head of the second bolt and the head of the third bolt abut against each other, and rotating the second bolt and / or the third bolt can adjust the level of the platform plate.

[0015] Optionally, each of the third bolts is connected to a nut, the nut being located between the edge of the walkway and the head of the third bolt.

[0016] Optionally, the engineering machinery turntable assembly includes a plurality of walkways, which are arranged side by side along the length of the turntable base.

[0017] Optionally, the turntable base is provided with a plurality of leveling seats, each leveling seat is provided with at least two third threaded holes and at least two second bolts, the plurality of leveling seats are arranged at intervals along the length direction of the turntable base, two adjacent walkways share one leveling seat, and at least two second bolts of the leveling seat abut against the third bolts of the two adjacent walkways respectively.

[0018] Optionally, the turntable base is provided with at least two first connectors, each of which has a first locking hole; the edge of the walkway is provided with at least two second connectors, each of which has a second locking hole, and each of the first connectors and each of the second connectors is rotatably connected by a first pin; when the walkway is in the first flipped state, a second pin is inserted into the first locking hole and the second locking hole to lock the walkway; when the walkway is in the second flipped state, the second pin is inserted into the first locking hole.

[0019] Optionally, the turntable side is arranged in a vertical direction, and the turntable base includes a connecting wall that is recessed relative to the turntable side, and each of the first connecting members is fixedly connected to the connecting wall.

[0020] Optionally, each of the first connecting members includes an edge disposed adjacent to the walkway plate, the edge being on the same plane as the turntable side, or the distance of the edge relative to the guardrail being greater than the distance of the turntable side relative to the guardrail.

[0021] This application also relates to a type of engineering machinery, including the aforementioned engineering machinery turntable assembly.

[0022] The engineering machinery turntable assembly of this utility model can connect the guardrail to the side of the walkway during transportation. The guardrail does not need to be detached from the engineering machinery, thus eliminating the need for additional storage space for the guardrail and additional transportation protection devices. The guardrail is less likely to be lost or damaged, increasing transportation convenience. Furthermore, the walkway of this application has a reinforcing rib structure on its side, which can increase the structural strength of the walkway and improve safety. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the engineering machinery turntable assembly according to the first embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the disassembled structure of the engineering machinery turntable assembly according to the first embodiment of this application.

[0025] Figure 3 yes Figure 1 The diagram shows the structure of the turntable assembly of the engineering machinery, in which the walkway and guardrail are locked to the side of the turntable.

[0026] Figure 4 This is a three-dimensional structural diagram of the turntable base according to the first embodiment of this application.

[0027] Figure 5 This is a bottom view of the walkway plate according to the first embodiment of this application.

[0028] Figure 6 This is a front view schematic diagram of the guardrail according to the first embodiment of this application.

[0029] Figure 7 yes Figure 5 The diagram shows a cross-sectional view of the walkway.

[0030] Figure 8 This is a cross-sectional structural diagram of the turntable base, walkway plate, and guardrail of this application in the working state.

[0031] Figure 9 yes Figure 8 The diagram shows a partial enlarged view of the turntable base, walkway, and guardrail.

[0032] Figure 10 This is a side view structural diagram of the walkway plate of this application.

[0033] Figure 11 This is a schematic diagram of the walkway and guardrail in the unfolded state according to the second embodiment of this application.

[0034] Figure 12 This is a schematic diagram of the walkway and guardrail in a folded state according to the second embodiment of this application.

[0035] Figure 13 This is a bottom view of the walkway plate according to the second embodiment of this application.

[0036] Figure 14 yes Figure 13 The diagram shows a cross-sectional view of the walkway.

[0037] Figure 15 This is a side view of the walkway plate according to the second embodiment of this application.

[0038] Figure 16 This is a front view structural diagram of the guardrail according to the second embodiment of this application. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0040] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical and operational aspects may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for describing particular embodiments only and is not intended to limit the present application.

[0041] Although the terms first, second, etc., are used in some instances to describe various elements herein, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0042] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0043] First Embodiment

[0044] Figure 1 This is a three-dimensional structural diagram of the engineering machinery turntable assembly according to the first embodiment of this application. Figure 2 This is a schematic diagram showing the disassembled structure of the engineering machinery turntable assembly according to the first embodiment of this application. Figure 3 yes Figure 1 The diagram shows the structure of the turntable assembly for construction machinery, where the walkway and guardrail are locked to the side of the turntable. Figure 4 This is a three-dimensional structural diagram of the turntable base according to the first embodiment of this application. Please refer to it. Figures 1 to 4 The engineering machinery turntable assembly includes a turntable base 11, at least one walkway 12, and at least one guardrail 13. The walkway 12 has at least one reinforcing rib structure 122 on its side to increase the structural strength of the walkway 12. The walkway 12 is rotatably connected to the turntable base 11. The walkway 12 has a first rotatable state and a second rotatable state. In the first rotatable state, the walkway 12 is locked to the turntable side 111 of the turntable base 11. In the second rotatable state, the walkway 12 is for people to walk on. When the walkway 12 is in the first rotatable state, the guardrail 13 is connected to the side of the walkway 12, for example, the guardrail 13 is connected to the reinforcing rib structure 122. When the walkway 12 is in the second rotatable state, the guardrail 13 is connected to the walkway 12, and a walking passage is formed between the guardrail 13, the walkway 12, and the turntable base 11.

[0045] When the turntable assembly of the construction machinery enters the working state, the walkway 12 is unlocked and flipped from the first flip state to the second flip state. At this time, the staff can enter and exit the cab through the walkway.

[0046] When it is necessary to transport the turntable assembly of engineering machinery, the walkway 12 is flipped from the second flip state to the first flip state, and then the walkway 12 is locked. At this time, the walkway 12 and the guardrail 13 are folded together on the side 111 of the turntable. The transport width is only increased by the superimposed thickness of the walkway 12 and the guardrail 13, which is 70mm to 100mm, for example, 80mm, 85mm, 90mm, or 95mm. The width limit can be met for non-strict transport requirements.

[0047] The engineering machinery turntable assembly of this application can connect the guardrail 13 to the side of the walkway plate 12 during transportation. The guardrail 13 does not need to be detached from the engineering machinery, so there is no need to prepare additional storage space for the guardrail 13, nor is it necessary to add transportation protection devices. The guardrail 13 is not easily lost or damaged, which increases the convenience of transportation. In addition, the side of the walkway plate 12 of this application is provided with a reinforcing rib structure 122, which can increase the structural strength of the walkway plate 12 and improve safety.

[0048] Alternatively, please refer to Figures 1 to 3 When the walkway 12 is in the first flipped state, the guardrail 13 is connected to the side of the walkway 12 using fastening components 14; when the walkway 12 is in the second flipped state, the guardrail 13 is connected to the walkway 12 using fastening components 14. In this application, the guardrail 13 is fixed using fastening components 14 in both the first and second flipped states of the walkway 12. The fastening components 14 are not easily lost or damaged, therefore, no additional devices for fixing the guardrail 13 are needed during transportation.

[0049] Optionally, Figure 5 This is a bottom view of the walkway plate according to the first embodiment of this application. Figure 6 This is a front view schematic diagram of the guardrail according to the first embodiment of this application, as shown below. Figure 1 , Figure 5 and Figure 6 As shown, at least two mounting cylinders 121 are fixed on the side of the walkway 12 away from the turntable base 11. The guardrail 13 includes at least two support columns 131. A limit plate 132 is fixed to the outer wall of each support column 131. When the walkway 12 is in the second flipped state, the ends of each support column 131 are installed in the mounting cylinder 121, the limit plate 132 abuts against the upper end of the mounting cylinder 121, and the fastening assembly 14 is connected to the end of the support column 131. In this embodiment, the mounting cylinder 121 is a hollow tube. After the support column 131 is inserted into the mounting cylinder 121 to a certain depth, the limiting plate 132 will abut against the upper end of the mounting cylinder 121 to prevent the support column 131 from extending further into the mounting cylinder 121. At this time, the end face of the support column 131 is flush with the lower end of the mounting cylinder 121, or the end face of the support column 131 does not exceed the lower end of the mounting cylinder 121. The fastening component 14 is connected to the end face of the support column 131 and locks the support column 131 and the mounting cylinder 121 together.

[0050] Optionally, each mounting cylinder 121 is fixed to the edge of the walkway plate 12, or to the inner side near the edge. If each mounting cylinder 121 is fixed to the edge of the walkway plate 12, for example, the outer wall of the mounting cylinder 121 is connected to the edge of the walkway plate 12, this design can increase the width of the walking passage. If each mounting cylinder 121 is fixed to the inner side of the walkway plate 12 near the edge, since the circumference of the mounting cylinder 121 is connected to the walkway plate 12, the connection strength between the mounting cylinder 121 and the walkway plate 12 can be improved.

[0051] Optionally, the limiting plate 132 is arranged around the circumference of the support column 131. The limiting plate 132 has a continuous ring structure or a discontinuous intermittent structure, as long as the limiting plate 132 can support the guardrail 13.

[0052] Optionally, such as Figure 1 , Figure 2 and Figure 6 As shown, each support column 131 has a first threaded hole 101 at its end. The fastening assembly 14 includes a pad 141 and a first bolt 142. The pad 141 is located at the lower end of the mounting cylinder 121, and the first bolt 142 passes through the pad 141 and engages with the first threaded hole 101. In this application, the first bolt 142 engages with the first threaded hole 101 to fix the guardrail 13 onto the walkway 12. Each support column 131 of the guardrail 13 abuts against the upper end of the mounting cylinder 121 via a limiting plate 132. Tightening the first bolt 142 causes the pad 141 to abut against the lower end of the mounting cylinder 121. This fastening method is simple and reliable, and will not cause the guardrail 13 to wobble.

[0053] In other embodiments, the guardrail 13 and the walkway 12 can be connected by a hinge structure. For example, the guardrail 13 can be folded to the side of the walkway 12 or unfolded to be perpendicular to the walkway 12 by the hinge structure.

[0054] Optionally, Figure 7 yes Figure 5 Please refer to the sectional view of the walkway shown. Figure 3 , Figures 5 to 7The platform 12 has at least two second threaded holes 102 on its side, and the guardrail 13 has at least two through holes 105. When the platform 12 is in the first flipped state, the guardrail 13 is set on the side of the platform 12, and each through hole 105 is correspondingly set with each second threaded hole 102. The pad 141 is correspondingly set with the through hole 105. The first bolt 142 passes through the pad 141 and the through hole 105 and is engaged with the second threaded hole 102. In this embodiment, the guardrail 13 includes at least one baffle 133. The two ends of the baffle 133 are fixed on two adjacent support columns 131, and each through hole 105 passes through the baffle 133. When the guardrail 13 is locked on the side of the platform 12, the first bolt 142 presses the pad 141 onto the baffle 133, and the screw section of the first bolt 142 is threadedly connected with the second threaded hole 102.

[0055] Optionally, such as Figure 5 As shown, the side of the walkway 12 is provided with multiple reinforcing rib structures 122, which are arranged in the transverse and / or longitudinal directions and are interconnected. A second threaded hole 102 is provided on one of the reinforcing rib structures 122. In this embodiment, the walkway 12 includes a front for people to walk on and a back opposite the front. The multiple reinforcing rib structures 122 are fixed to the back of the walkway 12, that is, the guardrail 13 is fixed to the back of the walkway 12.

[0056] In other embodiments, the guardrail 13 is fixed to the front of the walkway plate 12. For example, the front of the walkway plate 12 has a recessed receiving groove, the shape of which matches the shape of the guardrail 13. When the walkway plate 12 is in the first flipped state, the guardrail 13 is positioned in the receiving groove. At this time, the guardrail 13 is located between the walkway plate 12 and the turntable base 11. The overall thickness of the walkway plate 12 and the guardrail 13 is compressed to be slightly greater than or equal to the thickness of the walkway plate 12, which can further reduce the transport width and meet the stringent transport width restriction requirements. In this embodiment, the walkway plate 12 has a recessed receiving groove on its front and a reinforcing rib protruding in the area corresponding to the receiving groove on the back of the walkway plate 12. This increases the structural strength of the walkway plate 12 and eliminates the need for an additional reinforcing rib structure 122, which helps to reduce equipment costs.

[0057] Optionally, such as Figure 6 As shown, the guardrail 13 includes two baffles 133, one of which is connected to the body section of the two support columns 131, and the other baffle 133 is located near the limiting plate 132 and serves as a kick plate.

[0058] Optionally, such as Figure 6As shown, the guardrail 13 includes at least one crossbeam 134, with both ends of the crossbeam 134 fixedly connected to the ends of two adjacent support posts 131, forming a U-shaped structure with the crossbeam 134 and the two support posts 131. In this embodiment, the guardrail 13 includes two crossbeams 134, one of which is connected to the ends of the two support posts 131, and the other crossbeam 134 is fixed to the body section of the two support posts 131. Each crossbeam 134 is arranged parallel to the baffle 133.

[0059] Optionally, the crossbeams 134 and support posts 131 of the guardrail 13 are both hollow tubular structures, which ensures sufficient structural strength of the guardrail 13 while reducing its weight and facilitating installation and disassembly. In this embodiment, the cross-section of the crossbeams 134 and / or support posts 131 is circular or square.

[0060] In other embodiments, the guardrail 13 includes a first folding portion and a second folding portion, which are connected by a hinge structure. The first folding portion and the second folding portion can be unfolded around the hinge structure or folded together to reduce the height of the guardrail 13.

[0061] Optionally, Figure 8 This is a cross-sectional structural diagram of the turntable base, walkway plate, and guardrail of this application in the working state. Figure 9 yes Figure 8 The diagram shows a partial enlarged view of the turntable base, walkway, and guardrail. Figure 10 This is a side view structural diagram of the walkway plate of this application, as shown. Figure 4 , Figure 8 , Figure 9 and Figure 10 As shown, the turntable base 11 is provided with at least two leveling seats 112, each leveling seat 112 having at least one third threaded hole 103 and a second bolt 115 that mates with the third threaded hole 103. The edge of the platform plate 12 is provided with at least two fourth threaded holes 104 and a third bolt 123 that mates with the fourth threaded hole 104. When the platform plate 12 is in the second flipped state, the head of the second bolt 115 abuts against the head of the third bolt 123. Rotating the second bolt 115 and / or the third bolt 123 can adjust the level of the platform plate 12. When it is necessary to adjust the level of the platform plate 12, for example, by using a wrench to rotate the second bolt 115 and / or the third bolt 123, the depth of the second bolt 115 entering the third threaded hole 103 and / or the depth of the third bolt 123 entering the fourth threaded hole 104 can be adjusted to adjust the platform plate 12 to a level state. This leveling design can ensure that even with a certain degree of error, the platform plate 12 can remain level, meeting the requirements for working and walking.

[0062] In another embodiment, the turntable base 11 is provided with at least two leveling seats 112, each leveling seat 112 having at least one third threaded hole 103 and a second bolt 115 that engages with the third threaded hole 103; when the platform plate 12 is in the second flipped state, the edge of the platform plate 12 abuts against the second bolt 115, and rotating the second bolt 115 can adjust the horizontal state of the platform plate 12. In this embodiment, the edge of the platform plate 12 is not provided with a bolt structure, and the horizontal state of the platform plate 12 is adjusted only by using the second bolt 115 of the leveling seat 112, for example, by using a wrench to rotate the second bolt 115 to adjust the depth of the second bolt 115 entering the third threaded hole 103, thereby making the platform plate 12 abutting against it in a horizontal state.

[0063] Optionally, such as Figure 2 and Figure 9 As shown, each third bolt 123 is connected to a nut 124, which is located between the edge of the platform plate 12 and the head of the third bolt 123. In this embodiment, the nut 124 is used to lock the third bolt 123. For example, the third bolt 123 can be locked by rotating the nut 124 until it abuts against the edge of the platform plate 12.

[0064] Optionally, such as Figure 1 and Figure 3 As shown, the engineering machinery turntable assembly includes multiple walkways 12, which are arranged side by side along the length of the turntable base 11. In this embodiment, the number of guardrails 13 is the same as the number of walkways 12, or the number of guardrails 13 is less than the number of walkways 12. For example, guardrails 13 are not installed on the walkways 12 near the driver's cab. They can be added or removed as needed.

[0065] Optionally, such as Figure 1 and Figure 4 As shown, the turntable base 11 is provided with multiple leveling seats 112. Each leveling seat 112 is provided with at least two third threaded holes 103 and at least two second bolts 115. The multiple leveling seats 112 are arranged at intervals along the length of the turntable base 11. Two adjacent walkways 12 share one leveling seat 112. The at least two second bolts 115 of the leveling seat 112 abut against the third bolts 123 of the two adjacent walkways 12. In this embodiment, two adjacent walkways 12 share one leveling seat 112. The two second bolts 115 on the leveling seat 112 are used to adjust the horizontal state of the two walkways 12 respectively, ensuring that the upper surfaces of the two walkways 12 are flush. By screwing in or out the second bolts 115 and / or the third bolts 123, it is possible to ensure that the upper surfaces of the multiple walkways 12 are flush even if the machining error is large.

[0066] Optionally, such as Figure 2 , Figure 4 and Figure 10As shown, the turntable base 11 is provided with at least two first connecting members 113, each of which has a first locking hole 106; the edge of the walkway plate 12 is provided with at least two second connecting members 125, each of which has a second locking hole 107; each first connecting member 113 and each second connecting member 125 are rotatably connected by a first pin 15; when the walkway plate 12 is in the first flipped state, a second pin 16 is inserted into the first locking hole 106 and the second locking hole 107 to lock the walkway plate 12; when the walkway plate 12 is in the second flipped state, the second pin 16 is inserted into the first locking hole 106. In this embodiment, the walkway plate 12 can rotate around the first pin 15, for example, rotating from the first flipped state to the second flipped state, or rotating from the second flipped state to the first flipped state.

[0067] Optionally, each first connector 113 is provided with a first shaft hole 108, and each second connector 125 is provided with a second shaft hole 109, with the first pin 15 passing through the first shaft hole 108 and the second shaft hole 109.

[0068] Optionally, the first connector 113 is plate-shaped, and the edge of the first connector 113 is fixed to the turntable base 11. Preferably, the first connector 113 is perpendicular to the turntable side 111, and the first shaft hole 108 and the first locking hole 106 pass through the first connector 113.

[0069] Optionally, such as Figure 1 and Figure 2 As shown, the second connector 125 includes a first connecting plate 1251 and a second connecting plate 1252 disposed opposite to each other, forming an insertion gap between the first connecting plate 1251 and the second connecting plate 1252. The edges of the first connecting plate 1251 and the second connecting plate 1252 are fixed to the edge of the walkway plate 12. The second shaft hole 109 and the second locking hole 107 penetrate the first connecting plate 1251 and the second connecting plate 1252. When the first connector 113 and the second connector 125 are connected by the first pin 15, the first connector 113 is disposed in the insertion gap, and the first pin 15 passes sequentially through the second shaft hole 109 of the first connecting plate 1251, the first shaft hole 108 of the first connector 113, and the second shaft hole 109 of the second connecting plate 1252. When the guardrail 13 is locked to the side of the walkway 12, the second pin 16 passes sequentially through the second locking hole 107 of the first connecting plate 1251, the first locking hole 106 of the first connector 113, and the second locking hole 107 of the second connecting plate 1252. In this embodiment, the second connector 125 can limit the first connector 113 in the insertion gap, ensuring that the first connector 113 is not easily slipped out of the insertion gap.

[0070] In other embodiments, the walkway 12 and the turntable base 11 are connected by a hinge structure, and are not limited to the above.

[0071] Optionally, the second pin 16 may be a cotter pin, for example, but is not limited thereto.

[0072] Optionally, such as Figure 1 and Figure 4 As shown, the turntable side 111 is arranged vertically, and the turntable base 11 includes a connecting wall 114 that is recessed relative to the turntable side 111. Each first connecting member 113 is fixedly connected to the connecting wall 114. Due to the recessed design of the connecting wall 114 relative to the turntable side 111 in this application, the first connecting member 113 will not protrude from the turntable side 111. After the platform plate 12 is removed from the turntable base 11, the first connecting member 113 will not affect the width of the turntable base 11, and will not affect the transportation width limit, thus meeting the stringent transportation width limit requirements.

[0073] Optionally, such as Figure 1 and Figure 4 As shown, the connecting wall 114 is inclined relative to the horizontal plane; the connecting wall 114 can be a straight wall or an arc-shaped wall, which can be freely selected according to actual needs. In this embodiment, the bottom surface of the turntable base 11 is parallel to the horizontal plane, and the connecting wall 114 is inclinedly connected between the turntable side 111 and the bottom surface.

[0074] In other embodiments, the connecting wall 114 is parallel to and opposite to the turntable side 111, and a transition inner wall connects the connecting wall 114 and the turntable side 111. The transition inner wall is perpendicular to the connecting wall 114 and the turntable side 111 or at a certain angle. The turntable side 111, the transition inner wall and the connecting wall 114 have a Z-shaped stepped structure.

[0075] Optionally, such as Figure 4 As shown, each leveling seat 112 is fixed to the connecting wall 114, and each leveling seat 112 is arranged adjacent to the first connecting member 113.

[0076] Optionally, such as Figure 4 As shown, each first connector 113 includes an edge 1131 adjacent to the walkway plate 12. The edge 1131 is on the same plane as the turntable side 111, or the distance between the edge 1131 and the guardrail 13 is greater than the distance between the turntable side 111 and the guardrail 13. That is, the edge 1131 of each first connector 113 does not protrude from the turntable side 111, which is beneficial to reduce the transport width limit.

[0077] Optionally, each of the first connectors 113 is triangular, for example, a right triangle, with one right-angled side 1131 of each first connector 113 parallel to the turntable side 111, and the other right-angled side 1131 of each first connector 113 perpendicular to the turntable side 111.

[0078] Optionally, the walkway 12 can be rectangular, trapezoidal, or other irregularly shaped.

[0079] Optionally, the surface of the walkway 12 can be provided with round holes, rectangular holes, or irregular holes.

[0080] Optionally, the surface of the walkway 12 may also be provided with a non-slip plate, such as a fish-eye mesh plate or a lentil-patterned plate, but is not limited thereto.

[0081] Optionally, the engineering machinery turntable assembly also includes a cover assembly 17 and a driver's cab 18, both of which are fixed to the turntable base 11.

[0082] Optionally, when the guardrail 13 is fixed to the side of the walkway 12, the bottom end of the guardrail 13 does not exceed the bottom surface of the turntable base 11 and will not interfere with the components below the turntable base 11.

[0083] Second Embodiment

[0084] Figure 11 This is a schematic diagram of the walkway and guardrail in the unfolded state according to the second embodiment of this application. Figure 12 This is a schematic diagram of the walkway and guardrail in a folded state according to the second embodiment of this application. Figure 13 This is a bottom view of the walkway plate according to the second embodiment of this application. Figure 14 yes Figure 13 The diagram shows a cross-sectional view of the walkway plate. Figure 15 This is a side view of the walkway plate according to the second embodiment of this application. Figure 16 This is a front view structural diagram of the guardrail according to the second embodiment of this application. Please refer to it. Figures 11 to 16 The engineering machinery turntable assembly in this embodiment is largely the same as that in the first embodiment, except that the walkway 12 and the guardrail 13 have different local structures.

[0085] Alternatively, please refer to Figures 11 to 16 The side of the walkway 12 is connected to a limit frame 126, and a limit groove 201 is formed between the limit frame 126 and the walkway 12. The limit frame 126 is provided with at least two second threaded holes 102. The guardrail 13 is provided with a plug-in 135, which is located between two adjacent support columns 131. When the walkway 12 is in the first flipped state, the guardrail 13 is set on the side of the walkway 12, the plug-in 135 is set in the limit groove 201, the pad 141 is correspondingly set with the second threaded holes 102, the first bolt 142 passes through the pad 141 and is connected to the second threaded holes 102, and the first bolt 142 cooperates with the limit frame 126 to lock the guardrail 13.

[0086] When it is necessary to fix the guardrail 13 to the side of the walkway 12, first flip the guardrail 13 180° up and down, that is, invert the guardrail 13, and then set the guardrail 13 to the side of the walkway 12. Then move the guardrail 13 along the direction of gravity until the head of the connector 135 is inserted into the limiting groove 201. Finally, pass the first bolt 142 through the pad 141 and connect it with the second threaded hole 102. At this time, part of the screw section of the first bolt 142 protrudes from the second threaded hole 102. The screw section of the first bolt 142 cooperates with the limiting bracket 126 to clamp the head of the connector 135, so that the guardrail 13 is fixed to the side of the walkway 12.

[0087] In this embodiment, the guardrail 13 can be inserted into the limiting groove 201 of the walkway plate 12 through the plug 135. The limiting groove 201 can block the limiting plug 135. At the same time, the screw section of the first bolt 142 can block the plug 135, so that the guardrail 13 can be fixed to the side of the walkway plate 12, which facilitates quick assembly and management and can improve assembly and disassembly efficiency.

[0088] Optionally, such as Figure 13 and Figure 14 As shown, the limiting frame 126 includes a side plate 1261 spaced apart from the platform 12 and a baffle plate 1262 connected between the side plate 1261 and the platform 12. The two ends of the side plate 1261 are bent and connected to the platform 12 at a certain angle. The baffle plate 1262 is the bottom of the limiting groove 201, and the side plate 1261 and the platform 12 form the groove wall of the limiting groove 201. When the connector 135 is inserted into the limiting groove 201, the head of the connector 135 abuts against the baffle plate 1262. The baffle plate 1262 can support the connector 135, and the side plate 1261 and part of the platform 12 can limit the connector 135.

[0089] Optionally, such as Figure 12 and Figure 16 As shown, the connector 135 includes two opposing risers 1351 and an intermediate pipe 1352 connected to the ends of the two risers 1351. The two risers 1351 and the intermediate pipe 1352 are combined to form a U-shaped structure. The two risers 1351 are fixed to the baffle 133. When the guardrail 13 is locked to the side of the walkway 12, the intermediate pipe 1352 is located in the limiting groove 201. One side of the intermediate pipe 1352 abuts against the baffle 1262, and the other side of the intermediate pipe 1352 abuts against the threaded section of the first bolt 142. That is, the intermediate pipe 1352 is clamped between the baffle 1262 and at least two first bolts 142.

[0090] Optionally, the walkway 12 includes a first flange 127 adjacent to the turntable base 11 and a second flange 128 opposite to the first flange 127. Both the first flange 127 and the second flange 128 are provided with multiple grooves 202 for accommodating the frame of the guardrail 13. When the guardrail 13 is connected to the side of the walkway 12, the frame of the guardrail 13 is correspondingly disposed in each groove 202. In this embodiment, by providing multiple grooves 202, the walkway 12 allows the guardrail 13 to be embedded into the side of the walkway 12. The overall thickness of the stacked walkway 12 and guardrail 13 is relatively small, making it easier to meet width restriction requirements.

[0091] Optionally, the overall thickness of the stacked walkway 12 and guardrail 13 is 45mm to 70mm, for example, 50mm, 55mm, 60mm, or 65mm.

[0092] Third Embodiment

[0093] This application also relates to a type of construction machinery, including the aforementioned construction machinery turntable assembly. In this embodiment, the construction machinery may be, for example, a pile driver, a crawler crane, a twin-wheel milling machine, or a rotary drilling rig, but is not limited thereto.

[0094] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A construction machine turret assembly, characterized by, The device includes a turntable base, at least one walkway, and at least one guardrail. The walkway has at least one reinforcing rib on its side. The walkway is rotatably connected to the turntable base. The walkway has a first rotatable state and a second rotatable state. In the first rotatable state, the walkway is locked to the turntable side of the turntable base. In the second rotatable state, the walkway is open to pedestrian traffic. When the walkway is in the first rotatable state, the guardrail is connected to the side of the walkway. When the walkway is in the second rotatable state, the guardrail is connected to the walkway. A walking passage is formed between the guardrail, the walkway, and the turntable base.

2. The engineered mechanical turntable assembly of claim 1, wherein, When the walkway is in the first flipped state, the guardrail is connected to the side of the walkway using a fastening assembly; when the walkway is in the second flipped state, the guardrail is connected to the walkway using the fastening assembly.

3. The engineered mechanical turntable assembly of claim 2, wherein, At least two mounting cylinders are fixed to the side of the walkway away from the turntable base. The guardrail includes at least two support columns, and a limit plate is fixed to the outer wall of each support column. When the walkway is in the second flipped state, the ends of each support column are installed in the mounting cylinders, the limit plates abut against the upper end of the mounting cylinders, and the fastening assembly is connected to the ends of the support columns; and / or, Each of the support columns has a first threaded hole at its end. The fastening assembly includes a pad and a first bolt. The pad is located at the lower end of the mounting cylinder. The first bolt passes through the pad and engages with the first threaded hole.

4. The engineered mechanical turntable assembly of claim 3, wherein, The side of the walkway is provided with at least two second threaded holes, and the guardrail is provided with at least two through holes; when the walkway is in the first flipped state, the guardrail is set on the side of the walkway, and each of the through holes is set in accordance with each of the second threaded holes, the pad is set in accordance with the through holes, and the first bolt passes through the pad and the through holes and is connected to the second threaded holes.

5. The engineered mechanical turntable assembly of claim 3, wherein, The side of the walkway is connected to a limiting frame, and a limiting groove is formed between the limiting frame and the walkway. The limiting frame is provided with at least two second threaded holes. The guardrail is provided with a plug-in component, which is located between two adjacent support columns. When the walkway is in the first flipped state, the guardrail is set on the side of the walkway, the plug-in component is set in the limiting groove, the pad is correspondingly set with the second threaded holes, the first bolt passes through the pad and is connected to the second threaded hole, and the first bolt cooperates with the limiting frame to lock the guardrail.

6. The engineered mechanical turntable assembly of claim 4 or 5, wherein, The walkway includes a first flange adjacent to the turntable base and a second flange opposite to the first flange. Both the first flange and the second flange are provided with a plurality of grooves for accommodating the guardrail frame. When the guardrail is connected to the side of the walkway, the guardrail frame is correspondingly disposed in each of the grooves.

7. The engineered mechanical turntable assembly of any of claims 1-5, wherein, Includes at least one of the following: The turntable base is provided with at least two leveling seats, each of which is provided with at least one third threaded hole and a second bolt that engages with the third threaded hole; when the platform is in the second flipped state, the edge of the platform abuts against the second bolt, and rotating the second bolt can adjust the horizontal state of the platform. The turntable base is provided with at least two leveling seats, each leveling seat is provided with at least one third threaded hole and a second bolt that mates with the third threaded hole, and the edge of the platform plate is provided with at least two fourth threaded holes and a third bolt that mates with the fourth threaded hole; when the platform plate is in the second flipped state, the head of the second bolt and the head of the third bolt abut against each other, and rotating the second bolt and / or the third bolt can adjust the horizontal state of the platform plate; Each of the third bolts is connected to a nut, which is located between the edge of the walkway and the head of the third bolt.

8. The engineered mechanical turntable assembly of claim 7, wherein, The engineering machinery turntable assembly includes multiple walkway plates, which are arranged side-by-side along the length of the turntable base; and / or The turntable base is provided with a plurality of leveling seats, each leveling seat is provided with at least two third threaded holes and at least two second bolts, the plurality of leveling seats are arranged at intervals along the length of the turntable base, two adjacent walkways share one leveling seat, and at least two second bolts of the leveling seat abut against the third bolts of the two adjacent walkways respectively.

9. The engineered mechanical turntable assembly of any of claims 1-5, wherein, Includes at least one of the following: The turntable base is provided with at least two first connecting members, each of which has a first locking hole; the edge of the platform plate is provided with at least two second connecting members, each of which has a second locking hole; each of the first connecting members and each of the second connecting members are rotatably connected by a first pin; when the platform plate is in the first flipped state, the second pin is inserted into the first locking hole and the second locking hole to lock the platform plate; when the platform plate is in the second flipped state, the second pin is inserted into the first locking hole; The turntable side is arranged in a vertical direction, and the turntable base includes a connecting wall that is recessed relative to the turntable side, and each of the first connecting members is fixedly connected to the connecting wall. Each of the first connecting members includes an edge disposed adjacent to the walkway plate, the edge being on the same plane as the side of the turntable, or the distance of the edge relative to the guardrail being greater than the distance of the side of the turntable relative to the guardrail.

10. A working machine, characterized in that Includes the engineering machinery turntable assembly as described in any one of claims 1 to 9.

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