Cable drag chain support and double-trolley quayside container crane

Abstract

The utility model provides a cable drag chain support and a double-trolley quayside container crane, and relates to the technical field of lifting devices. The cable drag chain support comprises a support body and a support base, the support body comprises a supporting rod and an installation piece installed on the supporting rod, the installation piece is used for installing a cable drag chain guide groove, and the support base is used for being fixed to a door frame connection cross beam. The lower end of the supporting rod is provided with a first connecting part, the upper end of the support base is provided with a second connecting part, and the second connecting part is rotatably connected with the first connecting part so that the angle of the support body relative to the support base can be adjusted. According to the cable drag chain support, the support body and the support base are separated, on one hand, the transportation difficulty can be reduced, on the other hand, after the support base is fixedly installed on the door frame connection cross beam, the position of an installation piece can meet the requirement through angle adjustment of the support body relative to the support base, and therefore the installation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and in particular to a cable drag chain bracket and a double-trolley shore container crane. Background Art

[0002] The double-trolley quayside container crane (hereinafter referred to as the double-trolley quay crane) uses the main trolley and the gantry trolley to operate simultaneously, which can greatly improve the efficiency of container loading and unloading operations, especially playing an important role in automated terminals. The gantry cable transmission system connects the drive power supply and control signal to the gantry trolley. In order to adapt to the reciprocating operation of the gantry trolley on the track, the gantry cable transmission system is connected by two sets of cable drag chains, which can follow the gantry trolley. Therefore, the cable drag chain bracket is arranged above the door frame connection beam to ensure the reliability and safety of the drag chain operation.

[0003] The current cable drag chain bracket is relatively large in size, and in order to avoid fire after painting, the entire cable drag chain bracket needs to be welded and painted in advance and then transported to the installation location for installation, which makes the construction difficult. Utility Model Content

[0004] The purpose of the utility model is to provide a cable drag chain bracket, which can improve the technical problem of great construction difficulty existing in the prior art.

[0005] The utility model also aims to provide a double-trolley shore container crane, which can improve the technical problem of great construction difficulty existing in the prior art.

[0006] The embodiments of the present invention can be implemented in the following ways:

[0007] A cable drag chain bracket, a bracket body, the bracket body comprising a support rod and a mounting piece mounted on the support rod, the mounting piece is used to install a cable drag chain guide groove, the lower end of the support rod has a first connecting portion; and

[0008] A bracket base, the bracket base is used to be fixed to the door frame connecting beam, and the upper end of the bracket base has a second connecting part, the second connecting part is rotatably connected to the first connecting part, so that the angle of the bracket body relative to the bracket base is adjustable.

[0009] Optionally, the first connection portion is a first flange plate welded and fixed to the lower end of the support rod; and / or the second connection portion is a second flange plate welded and fixed to the upper end of the bracket base.

[0010] Optionally, the first flange plate is provided with circular bolt holes, and the second flange plate is provided with waist-shaped bolt holes corresponding to the circular bolt holes one by one; the cable drag chain bracket also includes a first bolt pair installed at the circular bolt holes and the waist-shaped bolt holes to realize the rotatable connection between the first flange plate and the second flange plate.

[0011] Optionally, a waist-shaped mounting hole is provided on the mounting member, and the waist-shaped mounting hole is used for installing the cable drag chain guide groove.

[0012] Optionally, the bracket body also includes a connecting structure, which includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected to the support rod, and the other end of the first connecting rod is fixedly connected to the second connecting rod, so that the second connecting rod is supported on one side of the support rod in the horizontal direction through the first connecting rod; the second connecting rod is connected to the mounting member.

[0013] Optionally, a connecting protrusion is provided on the second connecting rod, and the mounting member includes a mounting plate and two connecting plates fixedly connected to the lower side of the mounting plate, and the mounting plate is used to install the cable drag chain guide groove; the two connecting plates are respectively located on two opposite sides of the connecting protrusion; a first bolt connecting hole is provided on the connecting plate, and a second bolt connecting hole is provided on the connecting protrusion, so as to realize the connection between the connecting protrusion and the mounting member through the cooperation of the second bolt pair with the first bolt connecting hole and the second bolt connecting hole.

[0014] Optionally, both the first bolt connection hole and the second bolt connection hole are waist-shaped holes, and an extension direction of the first bolt connection hole is perpendicular to an extension direction of the second bolt connection hole.

[0015] Optionally, the number of the mounting members is two, and the two mounting members are distributed at both ends of the second connecting rod in the length direction; or,

[0016] The number of the mounting members is three, and the three mounting members are distributed along the length direction of the second connecting rod.

[0017] Optionally, four first reinforcing ribs and two second reinforcing ribs are further provided on the bracket base, the four first reinforcing ribs are arranged in a cross shape around the lower end of the bracket base, and the two second reinforcing ribs are arranged opposite to the two first reinforcing ribs.

[0018] A double-trolley shore container crane, which includes a door frame connecting beam, a cable drag chain guide groove and the above-mentioned cable drag chain bracket, wherein the bracket base of the cable drag chain bracket is fixedly connected to the door frame connecting beam, and the cable drag chain guide groove is fixedly connected to the mounting piece of the cable drag chain bracket.

[0019] The beneficial effects of the cable drag chain bracket and the double-trolley shore container crane provided by the embodiments of the utility model include:

[0020] An embodiment of the utility model provides a cable drag chain bracket, which includes a bracket body and a bracket base, the bracket body includes a support rod and a mounting piece installed on the support rod, the mounting piece is used to install a cable drag chain guide groove, and the bracket base is used to be fixed to a door frame connecting beam. The lower end of the support rod has a first connecting portion, and the upper end of the bracket base has a second connecting portion, and the second connecting portion is rotatably connected to the first connecting portion, so that the angle of the bracket body relative to the bracket base is adjustable. The cable drag chain bracket can reduce the difficulty of transportation by separating the bracket body from the bracket base. On the other hand, after the bracket base is fixedly installed on the door frame connecting beam, the angle of the bracket body relative to the bracket base can be adjusted to meet the requirements, thereby reducing the difficulty of installation and avoiding fire after painting.

[0021] The embodiment of the utility model further provides a double-trolley shore container crane, which includes the cable drag chain bracket. Since the double-trolley shore container crane includes the cable drag chain bracket, it also has the beneficial effect of low installation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or features may have the same or similar reference numerals.

[0023] Figure 1 A schematic structural diagram of a double-trolley shore container crane provided according to one aspect of the utility model in a first viewing angle is shown;

[0024] Figure 2 A schematic structural diagram of a double-trolley shore container crane provided according to one aspect of the utility model at a second viewing angle is shown;

[0025] Figure 3 A schematic structural diagram of a cable drag chain bracket provided according to one aspect of the utility model is shown;

[0026] Figure 4 Shows Figure 3A magnified schematic diagram of the local structure at position IV in the middle;

[0027] Figure 5 Shows Figure 3 A schematic diagram of the structure from the B-direction perspective;

[0028] Figure 6 Shows Figure 5 A magnified schematic diagram of the local structure at point III in the middle;

[0029] Figure 7 Shows Figure 3 Schematic diagram of the structure from the C-direction perspective;

[0030] Figure 8 Shows Figure 7 The enlarged schematic diagram of the local structure at position Ⅰ in the middle;

[0031] Fig. 9 Shows Figure 3 A magnified schematic diagram of the local structure at position II in the middle;

[0032] Fig.10 A schematic structural diagram of a cable drag chain bracket provided according to another aspect of the utility model is shown;

[0033] Fig.11 A schematic structural diagram of a second flange plate provided according to one aspect of the utility model is shown.

[0034] Reference numerals:

[0035] 10-Double trolley shore container crane; 100-cable drag chain bracket; 110-bracket body; 111-support rod; 112-first sealing plate; 113-first flange plate; 114-first connecting rod; 115-second connecting rod; 116-connecting protrusion; 117-second bolt connection hole; 118-second sealing plate; 120-mounting piece; 121-mounting plate; 122-mounting waist-shaped hole; 123-connecting plate; 124-first bolt connection hole; 130-first bolt pair; 131-first locking bolt; 132-first locking nut; 140-second bolt pair; 141-second locking bolt; 142-second locking nut; 150-bracket base; 151-second flange plate; 152-first reinforcing rib; 153-second reinforcing rib; 154-bolt waist hole; 210-cable drag chain; 220-door frame connecting beam; 240-door frame trolley; 250-cable drag chain guide groove. DETAILED DESCRIPTION

[0036] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention.

[0037] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", "vertical" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0038] At the same time, it should be noted that the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified or limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, an integral connection, or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components, etc. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Figure 1 This is a schematic structural diagram of the double-trolley shore container crane 10 provided in this embodiment at a first viewing angle, Figure 2 This is a schematic structural diagram of the double-trolley shore container crane 10 provided in this embodiment at a second viewing angle, Figure 3 This is a schematic diagram of the structure of the cable drag chain bracket 100 provided in this embodiment. Figure 4 for Figure 3 The enlarged schematic diagram of the local structure at Ⅳ in the middle. Please refer to Figure 1-Figure 4 This embodiment provides a cable drag chain bracket 100, and also provides a double-trolley shore container crane 10, which can also be referred to as a double-trolley shore crane.

[0041] The double-trolley shore container crane 10 includes a cable drag chain bracket 100, and at the same time, the double-trolley shore container crane 10 also includes a door frame connecting beam 220 and a cable drag chain guide groove 250, the bracket base 150 of the cable drag chain bracket 100 is fixedly connected to the door frame connecting beam 220, and the cable drag chain guide groove 250 is fixedly connected to the mounting member 120 of the cable drag chain bracket 100. The number of the cable drag chain bracket 100 in the double-trolley shore container crane 10 is multiple, and the multiple cable drag chain brackets 100 are arranged along the extension direction of the cable drag chain guide groove 250. Further, in some embodiments, the double-trolley shore container crane 10 also includes a cable drag chain 210, a trolley (not shown in the figure) and a gantry trolley 240, the running directions of the trolley and the gantry trolley 240 are perpendicular to each other, and the cable drag chain 210 is installed in the cable drag chain guide groove 250.

[0042] The cable drag chain bracket 100 includes a bracket body 110 and a bracket base 150. The bracket body 110 includes a support rod 111 and a mounting member 120 mounted on the support rod 111. The mounting member 120 is used to install the cable drag chain guide groove 250. The bracket base 150 is used to be fixed to the door frame connecting beam 220. The lower end of the support rod 111 has a first connection part, and the upper end of the bracket base 150 has a second connection part. The second connection part is rotatably connected to the first connection part, so that the angle of the bracket body 110 relative to the bracket base 150 can be adjusted. The cable drag chain bracket 100 can reduce the difficulty of transportation by separating the bracket body 110 from the bracket base 150. On the other hand, after the bracket base 150 is fixedly installed on the door frame connecting beam 220, the angle of the bracket body 110 relative to the bracket base 150 can be adjusted to meet the requirements, thereby reducing the difficulty of installation and avoiding fire after painting.

[0043] The structure of the cable drag chain bracket 100 provided in this embodiment is further described below:

[0044] Please continue to refer to Figure 1-Figure 4 In this embodiment, the first connection part is a first flange plate 113 welded and fixed to the lower end of the support rod 111. The second connection part is a second flange plate 151 welded and fixed to the upper end of the bracket base 150. The connection between the first flange plate 113 and the second flange plate 151 realizes the connection between the support rod 111 and the bracket base 150.

[0045] Furthermore, the first flange plate 113 is provided with a bolt circular hole, and the second flange plate 151 is provided with a bolt waist hole 154 corresponding to the bolt circular hole. Accordingly, the cable drag chain bracket 100 further includes a first bolt pair 130 installed at the bolt circular hole and the bolt waist hole 154, so that the relative position of the first flange plate 113 and the second flange plate 151 can be rotated by a certain angle along the extension direction of the bolt waist hole 154, thereby realizing the rotatable connection between the first flange plate 113 and the second flange plate 151. The plurality of bolt waist holes 154 are distributed along the circumference of the second flange plate 151 (such as Fig.11 As shown), the first flange plate 113 can be rotated around the axial direction of the second flange plate 151 (ie, as shown in FIG. Figure 3 The vertical direction) is rotated relative to the second flange plate 151.

[0046] Specifically, the first bolt pair 130 includes a first locking bolt 131 and a first locking nut 132. The first locking bolt 131 passes through the bolt circular hole and the bolt waist-shaped hole 154 and is screwed to the first locking nut 132. When the first locking nut 132 is tightened, the first flange plate 113 is fixed relative to the second flange plate 151, so that the bracket body 110 is fixed relative to the bracket base 150; when the first locking nut 132 is loosened, the first locking bolt 131 can be rotated relative to the second flange plate 151 along the extension direction of the bolt waist-shaped hole 154 by a certain angle, and accordingly, the first flange plate 113 can be rotated relative to the second flange plate 151, so as to achieve the angle adjustment of the bracket body 110 relative to the bracket base 150. There are multiple bolt circular holes and bolt waist-shaped holes 154. Accordingly, the first flange plate 113 and the second flange plate 151 are adjusted by multiple first bolt pairs 130.

[0047] The support rod 111 is made of seamless steel pipe, and the first flange plate 113 is welded and fixed to the lower end of the support rod 111 to close the lower end of the support rod 111. It can be understood that in this embodiment, the upper end of the support rod 111 is also welded and fixed with a first sealing plate 112 to close the upper end of the support rod 111 through the first sealing plate 112.

[0048] In this embodiment, the bracket base 150 is further provided with four first reinforcing ribs 152 and two second reinforcing ribs 153. The four first reinforcing ribs 152 are arranged in a cross shape around the lower end of the bracket base 150, and the two second reinforcing ribs 153 are arranged in pairs with the two opposite first reinforcing ribs 152.

[0049] Specifically, the first reinforcing rib 152 is roughly in the shape of a right triangle, one right-angled side of which is welded and fixed to the circumference of the bracket base 150, and the other right-angled side of which is roughly distributed horizontally, that is, the right-angled side can be regarded as the lower end face of the first reinforcing rib 152. The first reinforcing rib 152 and the second reinforcing rib 153 are welded to the partition or half partition position of the door frame connecting crossbeam 220, the lower end face of the first reinforcing rib 152 can be welded and fixed to the upper end face of the partition or half partition of the door frame connecting crossbeam 220, the second reinforcing rib 153 can be welded and fixed to the side face of the partition of the door frame connecting crossbeam 220, and the second reinforcing rib 153 is welded and fixed to the lower end face of the first reinforcing rib 152 of the opposite rib. The bracket base 150 is made of seamless steel pipe, and the second flange plate 151 is welded and fixed above the seamless steel pipe, so that the upper end of the seamless steel pipe can be closed.

[0050] Figure 5 for Figure 3 Schematic diagram of the structure from the B direction perspective, Figure 6 for Figure 5 The enlarged schematic diagram of the local structure at point III in the middle. Figure 7 for Figure 3 Schematic diagram of the structure from the C-direction perspective, Figure 8 for Figure 7 The enlarged schematic diagram of the local structure at position Ⅰ in the middle. Please refer to Figure 1-Figure 8 In this embodiment, the bracket body 110 further includes a connection structure, which includes a first connection rod 114 and a second connection rod 115, one end of the first connection rod 114 is fixedly connected to the support rod 111, and the other end of the first connection rod 114 is fixedly connected to the second connection rod 115, so that the second connection rod 115 is supported on one side of the support rod 111 in the horizontal direction through the first connection rod 114. The second connection rod 115 is connected to the mounting member 120.

[0051] Specifically, the connection structure includes two first connecting rods 114. The two first connecting rods 114 are welded at the same height position of the support rod 111 at an angle, and the other ends of the two first connecting rods 114 are welded and fixed at different positions in the length direction of the second connecting rod 115, so that the two first connecting rods 114 and the second connecting rod 115 form a triangular support to ensure the support strength of the second connecting rod 115. The length direction of the two first connecting rods 114 is set along a certain horizontal direction, so that the connection position of the second connecting rod 115 and the first connecting rod 114 on the support rod 111 is located on the same horizontal plane, that is, the second connecting rod 115 is supported on one side of the support rod 111 in the horizontal direction.

[0052] Optionally, both the first connecting rod 114 and the second connecting rod 115 are made of seamless steel pipes. In this embodiment, the second connecting rod 115 is welded and fixed with second sealing plates 118 at both axial ends, and the second sealing plates 118 seal the openings at both axial ends of the second connecting rod 115 .

[0053] Fig. 9 for Figure 3 The enlarged schematic diagram of the local structure at Ⅱ in the middle. Please refer to Figure 1-Figure 9 Further, a connecting protrusion 116 is provided on the second connecting rod 115, and the mounting member 120 includes a mounting plate 121 and two connecting plates 123 fixedly connected to the lower side of the mounting plate 121, and the two connecting plates 123 are vertically arranged side by side. The mounting plate 121 is used to install the cable drag chain guide groove 250, and the two connecting plates 123 are respectively located on two opposite sides of the connecting protrusion 116. A first bolt connection hole 124 is provided on the connecting plate 123, and a second bolt connection hole 117 is provided on the connecting protrusion 116, so that the connection of the connecting protrusion 116 and the mounting member 120 is achieved through the cooperation of the second bolt pair 140 with the first bolt connection hole 124 and the second bolt connection hole 117.

[0054] Specifically, the second bolt pair 140 includes a second locking bolt 141 and a second locking nut 142. The two connecting plates 123 are both provided with first bolt connection holes 124. When the two connecting plates 123 are located on both sides of the connecting protrusion 116, the first bolt connection holes 124 on the two connecting plates 123 are respectively aligned with the axial ends of the second bolt connection holes 117, so that the second locking bolt 141 can be sequentially passed through the first bolt connection hole 124 on one side, the second bolt connection hole 117 and the first bolt connection hole 124 on the other side and then be screwed with the second locking nut 142. When the second locking nut 142 is tightened, the mounting member 120 is fixed relative to the connecting protrusion 116.

[0055] Optionally, the connection protrusion 116 is a seamless steel pipe welded and fixed on the second connection rod 115. It can be understood that in other embodiments, the connection structure between the second connection rod 115 and the mounting member 120 can be formed in other forms.

[0056] Furthermore, the first bolt connection hole 124 and the second bolt connection hole 117 are both waist-shaped holes, and the extension direction of the first bolt connection hole 124 is perpendicular to the extension direction of the second bolt connection hole 117. In this way, when the mounting member 120 and the connecting protrusion 116 are connected by the second bolt pair 140, the position of the mounting member 120 relative to the connecting protrusion 116 can be adjusted in the extension direction of the first bolt connection hole 124 and the extension direction of the second bolt connection hole 117.

[0057] Specifically, the first bolt connection hole 124 extends in the height direction, and the second bolt connection hole 117 extends in the running direction of the gantry trolley. The running direction of the gantry trolley is Figure 1 The left and right direction in .

[0058] Furthermore, a plurality of mounting members 120 are disposed on the bracket body 110, and the plurality of mounting members 120 are spaced apart along the length direction of the second connecting rod 115. Figure 3 The number of mounting members 120 in the cable drag chain bracket 100 shown is three, and the three mounting members 120 are distributed along the length direction of the second connecting rod 115, so that the cable drag chain bracket 100 can be installed with a three-speed cable drag chain guide groove 250. Specifically, two of the three mounting members 120 are distributed at the ends at both ends of the second connecting rod 115 in the length direction, and the remaining mounting member 120 is located in the middle of the second connecting rod 115. The number and position of the connecting protrusions 116 correspond one-to-one to the mounting members 120, and accordingly, three connecting protrusions 116 are provided on the second connecting rod 115.

[0059] It is understandable that the specific number of the mounting members 120 is not limited to three. As an example, Fig.10 FIG. 1 shows a schematic structural diagram of another cable drag chain bracket 100 provided in this embodiment. Fig.10 As shown, the number of the mounting members 120 in the cable drag chain bracket 100 is two, and the two mounting members 120 are respectively mounted at both ends of the length direction of the second connecting rod 115, so that the two-stage cable drag chain guide groove 250 can be installed through the other cable drag chain bracket 100, and the length of the second connecting rod 115 can also be correspondingly reduced, thereby forming a relatively Figure 3 The structure shown is a smaller cable drag chain bracket. When assembling the double-trolley shore container crane 10, a suitable cable drag chain bracket 100 can be selected according to the specific structure of the double-trolley shore container crane 10, thereby avoiding the possibility of interference between the cable drag chain bracket 100 and the door frame support rod (the diagonal support structure installed on the upper side of the door frame connecting beam 220), and meeting the cable drag chain arrangement under different door frame support rod structures.

[0060] In this embodiment, a waist-shaped mounting hole 122 is provided on the mounting member 120, and the waist-shaped mounting hole 122 is used to install the cable drag chain guide groove 250, so that the relative position of the mounting member 120 and the cable drag chain guide groove 250 can be adjusted within a certain range along the waist-shaped mounting hole 122. Specifically, the waist-shaped mounting hole 122 is provided on the mounting plate 121. Figure 8As shown, the mounting plate 121 is a long strip-shaped plate-like member, and the connecting plate 123 is connected to the mounting plate 121 near the center. Two waist-shaped mounting holes 122 are spaced apart in the length direction of the mounting plate 121, and the two waist-shaped mounting holes 122 are located on both sides of the position where the two connecting plates 123 are located. The waist-shaped mounting holes 122 extend along the running direction of the trolley, which is the running direction of the trolley. Figure 2 Thus, by providing the first bolt connection hole 124, the second bolt connection hole 117 and the waist-shaped mounting hole 122, the cable drag chain 210 can be adjusted in the running direction of the gantry trolley, the running direction of the trolley and the height direction, thereby reducing the tolerance requirements of the cable drag chain 210 in various directions during installation.

[0061] The cable drag chain bracket 100 and the double-trolley shore container crane 10 provided by the embodiment of the utility model can avoid ignition after painting by setting the bracket body 110 and the bracket base 150 to be rotatably connected through a flange plate, and can ensure the straightness of the cable drag chain 210 by adjusting the angle of each bracket. At the same time, by setting the waist-shaped hole, the cable drag chain 210 can be adjusted in three directions during installation, reducing the difficulty of installation, and no overall hot-dip galvanizing anti-corrosion treatment is required.

[0062] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technology in this field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention.

Claims

1. A cable drag chain bracket, characterized in that: The cable drag chain bracket comprises: A bracket body, the bracket body comprising a support rod and a mounting piece mounted on the support rod, the mounting piece is used to install a cable drag chain guide groove, and the lower end of the support rod has a first connecting portion; and A bracket base, the bracket base is used to be fixed to the door frame connecting beam, and the upper end of the bracket base has a second connecting part, the second connecting part is rotatably connected to the first connecting part, so that the angle of the bracket body relative to the bracket base is adjustable.

2. The cable drag chain bracket according to claim 1, characterized in that: The first connection portion is a first flange plate welded and fixed to the lower end of the support rod; and / or the second connection portion is a second flange plate welded and fixed to the upper end of the bracket base.

3. The cable drag chain bracket according to claim 2, characterized in that: The first flange plate is provided with circular bolt holes, and the second flange plate is provided with waist-shaped bolt holes corresponding to the circular bolt holes one by one; the cable drag chain bracket also includes a first bolt pair installed at the circular bolt holes and the waist-shaped bolt holes to realize the rotatable connection between the first flange plate and the second flange plate.

4. The cable drag chain bracket according to claim 1, characterized in that: A waist-shaped mounting hole is provided on the mounting piece, and the waist-shaped mounting hole is used for mounting the cable drag chain guide groove.

5. The cable drag chain bracket according to claim 1, characterized in that: The bracket body also includes a connecting structure, which includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected to the support rod, and the other end of the first connecting rod is fixedly connected to the second connecting rod, so that the second connecting rod is supported on one side of the support rod in the horizontal direction through the first connecting rod; the second connecting rod is connected to the mounting member.

6. The cable drag chain bracket according to claim 5, characterized in that: A connecting protrusion is provided on the second connecting rod, and the mounting member includes a mounting plate and two connecting plates fixedly connected to the lower side of the mounting plate, and the mounting plate is used to install the cable drag chain guide groove; the two connecting plates are respectively located on the opposite sides of the connecting protrusion; a first bolt connecting hole is provided on the connecting plate, and a second bolt connecting hole is provided on the connecting protrusion, so as to realize the connection between the connecting protrusion and the mounting member through the cooperation of the second bolt pair with the first bolt connecting hole and the second bolt connecting hole.

7. The cable drag chain bracket according to claim 6, characterized in that: The first bolt connection hole and the second bolt connection hole are both waist-shaped holes, and an extending direction of the first bolt connection hole is perpendicular to an extending direction of the second bolt connection hole.

8. The cable drag chain bracket according to claim 5, characterized in that: The number of the mounting members is two, and the two mounting members are distributed at both ends of the second connecting rod in the length direction; or, The number of the mounting members is three, and the three mounting members are distributed along the length direction of the second connecting rod.

9. The cable drag chain bracket according to any one of claims 1 to 8, characterized in that: Four first reinforcing ribs and two second reinforcing ribs are also arranged on the bracket base. The four first reinforcing ribs are arranged in a cross shape around the lower end of the bracket base, and the two second reinforcing ribs are arranged opposite to the two first reinforcing ribs.

10. A double-trolley shore container crane, characterized in that: The double-trolley shore container crane includes a door frame connecting beam, a cable drag chain guide groove and a cable drag chain bracket as described in any one of claims 1 to 9, the bracket base of the cable drag chain bracket is fixedly connected to the door frame connecting beam, and the cable drag chain guide groove is fixedly connected to the mounting part of the cable drag chain bracket.

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