Wiring channel for port equipment

Abstract

The invention relates to the technical field of electrical accessories, in particular to a wiring duct for port equipment, which comprises a wiring duct movably connected with a cover plate; an extension mechanism is mounted on the upper side surfaces of the wire slot and the cover plate, connecting pieces are fixedly connected to the side surfaces of the cover plate and the extension mechanism, mounting pieces are fixedly connected to the side surfaces of the wire slot and the extension mechanism, and a wire bunching assembly is mounted on the extension mechanism; according to the cabling channel for the port equipment, when the bunching channel moves, the laying space of a line can be increased, the laying space of the line can be conveniently increased by the cabling channel according to needs, and after the bunching channel is separated from the line, the laying space of the line can be increased by operating the first expansion assembly; the laying space of the wire duct can be conveniently increased under the condition that a circuit is not disassembled after being laid, at the moment, the circuit can be inserted into a third U-shaped plate to be clamped, staged operation can be conveniently conducted when the circuit is clamped, use is easy, and operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of electrical accessories, in particular to a wiring trough used for port equipment. Background Art

[0002] Port equipment is an indispensable material and technical foundation for modern ports to engage in loading and unloading and transportation production, and is an important part of the port production quality assurance system. Port equipment is mainly divided into: loading and unloading, auxiliary equipment and communication. However, no matter what type of port equipment, it needs to connect the line. The line of port equipment usually needs to be laid in the wiring trough. The wiring trough is used to organize the power line, data line and other wires in a standardized manner, and can be fixed on the wall or equipment; The existing wiring troughs used for port equipment are usually composed of parts such as wire troughs, cover plates, connectors and mounting parts. When the wire troughs are in use, the mounting parts can be fixed to the specified position of the equipment in advance with fastening bolts. The fixing of the mounting parts is the fixation of the wire trough. After the wire trough is fixed, wires can be placed. After the wires are placed, the cover plate can be fixed to the side of the wire trough through the connector using fastening bolts. The cover plate and the wire trough can be used after being fixed. A large number of equipment will be used inside the port, which will result in not only one type of equipment line inside the wire trough, but two or more types of equipment lines, which will require higher internal space for the wire trough. However, if there are too many lines laid inside the wire trough, there will be great safety hazards. If multiple sets of wire troughs are to be installed, a larger installation space will be occupied, and the laying cost will also be increased. Summary of the invention

[0003] To solve the above-mentioned purpose, the present invention provides the following technical solution: A wiring trough for port equipment, comprising: a wiring trough, on which a cover plate is movably connected; An expansion mechanism is installed on the side of the wire trough and the cover plate, the sides of the cover plate and the expansion mechanism are fixedly connected with connecting pieces, the sides of the wire trough and the expansion mechanism are fixedly connected with mounting pieces, and a wire harness assembly is installed on the expansion mechanism; The expansion mechanism comprises: a first expansion component, the first expansion component is installed on the side of the wire slot, the first expansion component is also installed on the side of the cover plate, the first expansion component comprises: a first extension cavity, the first extension cavity is opened on the side of the wire slot, and the first extension cavity is movably connected with a first telescopic plate inside; A side plate is fixedly connected to the side of the first telescopic plate, a mounting piece is fixedly connected to the side of the side plate, a second extension cavity is opened on the side of the cover plate, a second telescopic plate is movably connected inside the second extension cavity, a pull plate is fixedly connected to the side of the second telescopic plate, and a connecting piece is fixedly connected to the side of the pull plate; The bottom of the first extension cavity and the top of the second extension cavity are both provided with a slide groove, the bottom of the first telescopic plate and the top of the second telescopic plate are both fixedly connected with a slide rail, the slide rail is movably connected to the inside of the slide groove, the top of the first extension cavity and the bottom of the second extension cavity are both provided with a limit groove, the top of the first telescopic plate and the bottom of the second telescopic plate are both fixedly connected with a limit block, the limit block is movably connected to the inside of the limit groove, and the top of the first extension cavity is provided with a movable groove.

[0004] As a preferred solution of the present invention, a positioning component is installed inside the first extension component, and the positioning component includes: a positioning groove, the positioning groove is opened on the top of the first extension cavity, and the first telescopic plate is provided with an extrusion groove.

[0005] As a preferred solution of the present invention, a first spring is fixedly connected inside the extrusion groove, a positioning ball is fixedly connected to the end of the first spring, and the positioning ball is snap-connected to the top of the positioning groove.

[0006] As a preferred solution of the present invention, a second extension component is installed between the first extension component and the wiring harness component, and the second extension component includes: the bottom of the movable plate is fixedly connected to the top of the first telescopic plate, the side of the movable plate is movably connected to the inside of the movable groove, and the side of the movable plate is installed with a hinge.

[0007] As a preferred solution of the present invention, a wiring harness assembly is installed on the side of the hinge, a threaded groove is opened on the side of the wiring harness assembly, the internal thread of the threaded groove is connected with a bolt, and a guide groove is opened through the side of the side panel, and a bolt is movably connected inside the guide groove.

[0008] As a preferred solution of the present invention, the wiring harness assembly includes: a fixed wiring harness rack and a movable wiring harness rack, the fixed wiring harness rack is fixedly connected to the inner side of the wire groove, the movable wiring harness rack is connected to the side of the hinge, the side of the movable wiring harness rack is provided with the threaded groove, and both the fixed wiring harness rack and the movable wiring harness rack are provided with wiring harness grooves.

[0009] As a preferred solution of the present invention, a first sliding cavity is opened on the inner side of the wiring harness groove, a first U-shaped plate is movably connected inside the first sliding cavity, two ends of a second spring are fixedly connected between the first U-shaped plate and the first sliding cavity, and a second sliding cavity is opened on the inner side of the wiring harness groove.

[0010] As a preferred solution of the present invention, a second U-shaped plate is movably connected inside the second sliding cavity, two ends of a second spring are fixedly connected between the second sliding cavity and the second U-shaped plate, a first pull groove is provided at the bottom of the second U-shaped plate, a first through groove is provided between the first sliding cavity and the second sliding cavity, and a first push rod is fixedly connected to the top of the first U-shaped plate.

[0011] As a preferred solution of the present invention, the side surface of the first push rod is movably connected to the inside of the first through groove, the top end of the first push rod is movably connected to the inside of the first pull groove, a third sliding cavity is opened on the inner side of the wiring groove, a third U-shaped plate is movably connected to the inside of the third sliding cavity, and the two ends of the second spring are fixedly connected between the third U-shaped plate and the third sliding cavity.

[0012] As a preferred solution of the present invention, a second pull groove is provided at the bottom of the third U-shaped plate, a second through groove is provided between the second sliding cavity and the third sliding cavity, the top of the third U-shaped plate is fixedly connected to the bottom end of the second push rod, the middle part of the second push rod is movably connected to the inside of the second through groove, and the top end of the second push rod is movably connected to the inside of the second pull groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the wiring trough for port equipment, 1. The first telescopic plate and the second telescopic plate can slide inside the first extension cavity and the second extension cavity by pulling the side plate and the pull plate. When the second telescopic plate slides, it can drive the movable cable rack and the cable trough to move. When the cable trough moves, it can increase the laying space of the line, which is convenient for the wiring trough to increase the laying space of the line as needed; 2. Bolts are provided to slide through the push and guide grooves. When the bolts slide, the mobile harness rack can be driven to rotate. When the mobile harness rack rotates, it can be flipped through the hinge and the mobile plate. When the mobile harness rack flips, the harness trough can be driven to separate from the laid line. After the harness trough is separated from the line, the first expansion component can be operated to increase the laying space of the line, which is convenient for increasing the laying space of the trough without disassembling the line after laying the line; 3. A first U-shaped plate is provided to clamp the line. The first U-shaped plate drives the second U-shaped plate to move through the first push rod while clamping the line. When the second U-shaped plate moves to a specified position, it can clamp another group of lines. The second U-shaped plate can drive the third U-shaped plate to move to a specified position through the second push rod while clamping another group of lines. At this time, the line can be inserted into the interior of the third U-shaped plate for clamping, which is convenient for staged operation when clamping the line. It is simple to use and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional expansion structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional exploded cross-sectional structure of the wire duct of the present invention; Figure 4 This is a schematic diagram of a three-dimensional exploded cross-sectional structure of a cover plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the wiring harness assembly of the present invention; Figure 6 It is a schematic diagram of the side cross-sectional structure of the wiring harness assembly of the present invention; Figure 7 For the present invention Figure 4 A schematic diagram of the enlarged structure of part A; Figure 8 For the present invention Figure 3 Enlarged structural diagram of part B.

[0015] In the figure: 1, wire trough; 2, cover plate; 3, connector; 4, expansion mechanism; 41, first expansion assembly; 4101, first extension cavity; 4102, first telescopic plate; 4103, side plate; 4104, second extension cavity; 4105, second telescopic plate; 4106, pull plate; 4107, slide groove; 4108, limit groove; 4109, slide rail; 4110, limit block; 4111, moving groove; 42, positioning assembly; 4201, positioning groove; 4202, extrusion groove; 4203, first spring; 4204, positioning ball; 43, second extension assembly; 4301, Movable plate; 4302, hinge; 4303, threaded groove; 4304, bolt; 4305, guide groove; 5, mounting part; 6, wire harness assembly; 601, fixed wire harness rack; 602, movable wire harness rack; 603, wire harness groove; 604, first slide cavity; 605, first U-shaped plate; 606, second slide cavity; 607, second U-shaped plate; 608, first pull groove; 609, first through groove; 610, first push rod; 611, third slide cavity; 612, third U-shaped plate; 613, second pull groove; 614, second through groove; 615, second push rod; 616, second spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1 and Figure 2, the present invention provides an embodiment: a wiring trough for port equipment, comprising: a wiring trough 1, a cover plate 2 being movably connected to the wiring trough 1; An expansion mechanism 4 is installed on the side of the wire duct 1 and the cover plate 2, a connector 3 is fixedly connected to the sides of the cover plate 2 and the expansion mechanism 4, a mounting member 5 is fixedly connected to the sides of the wire duct 1 and the expansion mechanism 4, and a wiring harness assembly 6 is installed on the expansion mechanism 4.

[0018] It should be noted that before the use of the wiring trough, the laying space inside the cable trough 1 can be adjusted by the expansion mechanism 4. After the adjustment of the cable trough 1 is completed, the mounting member 5 can be fixed to the specified position of the equipment using the fastening bolts. The fixing of the mounting member 5 is the fixation of the cable trough 1. After the cable trough 1 is fixed, the wires can be placed inside the wiring harness assembly 6. The wiring harness assembly 6 can clamp and fix the wires. After the wires are clamped, the cover plate 2 can be fixed to the side of the cable trough 1 through the connecting member 3 using the fastening bolts.

[0019] like Figure 1-Figure 4 , Figure 5 and Figure 7 As shown, in the first embodiment, the expansion mechanism 4 includes: a first expansion component 41, the first expansion component 41 is installed on the side of the line slot 1, the first expansion component 41 is also installed on the side of the cover plate 2, the first expansion component 41 includes: a first extension cavity 4101, the first extension cavity 4101 is opened on the side of the line slot 1, the first extension cavity 4101 is internally movably connected with a first telescopic plate 4102, the side of the first telescopic plate 4102 is fixedly connected with a side plate 4103, the side of the side plate 4103 is fixedly connected with a mounting member 5, the side of the cover plate 2 is opened with a second extension cavity 4104, the second extension cavity 4104 is internally movably connected with a second telescopic plate 4105, and the side of the second telescopic plate 4105 is fixedly connected with a pull plate 4106, the side of the pull plate 4106 is fixedly connected with a connecting piece 3, the bottom of the first extension cavity 4101 and the top of the second extension cavity 4104 are both provided with a slide groove 4107, the bottom of the first telescopic plate 4102 and the top of the second telescopic plate 4105 are both fixedly connected with a slide rail 4109, the slide rail 4109 is movably connected inside the slide groove 4107, the top of the first extension cavity 4101 and the bottom of the second extension cavity 4104 are both provided with a limiting groove 4108, the top of the first telescopic plate 4102 and the bottom of the second telescopic plate 4105 are both fixedly connected with a limiting block 4110, the limiting block 4110 is movably connected inside the limiting groove 4108, and the top of the first extension cavity 4101 is provided with a movable groove 4111.

[0020] It is worth noting that pulling the side plate 4103 and the pull plate 4106 respectively can drive the first telescopic plate 4102 and the second telescopic plate 4105 to move, and the first telescopic plate 4102 and the second telescopic plate 4105 can slide through the first extension cavity 4101 and the second extension cavity 4104 when they move, and the first telescopic plate 4102 and the second telescopic plate 4105 can drive the slide rail 4109 and the limit block 4110 to move when they slide, and the slide rail 4109 can slide through the slide groove 4107 when it moves, and the limit block 4110 can move when it moves. By sliding through the limit groove 4108, the first telescopic plate 4102 can drive the movable plate 4301 to move while moving, and the movable plate 4301 can slide through the movable groove 4111 when moving, and the movable plate 4301 can drive the movable cable rack 602 to move when sliding, and the movable cable rack 602 can drive the cable trough 603 to move when moving, and the cable trough 603 on the movable cable rack 602 can be misaligned with the cable trough 603 on the fixed cable rack 601 when moving, thereby increasing the laying space of the cable trough 1 line.

[0021] like Figure 1-Figure 3 , Figure 5 and Figure 8 As shown, a positioning component 42 is installed inside the first extension component 41, and the positioning component 42 includes: a positioning groove 4201, the positioning groove 4201 is opened at the top of the first extension cavity 4101, an extrusion groove 4202 is opened on the first telescopic plate 4102, a first spring 4203 is fixedly connected inside the extrusion groove 4202, a positioning ball 4204 is fixedly connected to the end of the first spring 4203, and the positioning ball 4204 is snap-connected to the top of the positioning groove 4201.

[0022] It can be understood that when the first telescopic plate 4102 moves, it can drive the extrusion groove 4202 and the positioning ball 4204 to move. When the positioning ball 4204 moves, it can squeeze the arc surface of the positioning groove 4201. When the positioning ball 4204 is squeezed, it can slide through the extrusion groove 4202. When the positioning ball 4204 slides, it can squeeze the first spring 4203. When the positioning ball 4204 is completely squeezed into the extrusion groove 4202, the first telescopic plate 4102 can continue to drive the positioning ball 4204. When the positioning ball 4204 moves to the bottom of another group of positioning grooves 4201, the positioning ball 4204 can be reset by the elastic force of the first spring 4203 itself. When the positioning ball 4204 is reset, it can be snap-connected with another group of positioning grooves 4201. The distance between the positioning grooves 4201 corresponds to the distance between the wiring harness grooves 603 one by one, so that when adjusting the laying space of the wiring harness groove 1, the wiring harness groove 603 on the movable wiring harness frame 602 can be accurately docked with the wiring harness groove 603 on the fixed wiring harness frame 601.

[0023] like Figure 1-Figure 3, Figure 5 and Figure 6 As shown, in the second embodiment, a second extension component 43 is installed between the first extension component 41 and the wiring harness component 6, and the second extension component 43 includes: the bottom of a movable plate 4301 is fixedly connected to the top of the first telescopic plate 4102, the side of the movable plate 4301 is movably connected to the inside of the movable groove 4111, a hinge 4302 is installed on the side of the movable plate 4301, and the side of the hinge 4302 is installed with the wiring harness component 6, a threaded groove 4303 is provided on the side of the wiring harness component 6, and the internal thread of the threaded groove 4303 is connected with a bolt 4304, and a guide groove 4305 is provided through the side of the side plate 4103, and the guide groove 4305 is movably connected with a bolt 4304.

[0024] It should be understood that by turning the bolt 4304, the thread can slide through the thread groove 4303, and the bolt 4304 can be separated from the side plate 4103 when the thread slides. When the bolt 4304 is separated from the side plate 4103, the bolt 4304 can be pushed to move. When the bolt 4304 moves, it can slide with the guide groove 4305. When the bolt 4304 slides, the movable cable rack 602 can be driven to rotate. When the movable cable rack 602 rotates, it can be flipped through the hinge 4302 and the movable plate 4301. When the movable cable rack 602 flips, it can drive the cable groove 603 to move. When the cable groove 603 moves, it can drive the first U-shaped plate 605, the second U-shaped plate 607 and the third U-shaped plate 612 to move. When the third U-shaped plate 612 moves, it can be separated from the line first, followed by the second U-shaped plate 612. The plate 607 is separated from the line. When the second U-shaped plate 607 is separated from the line, the third U-shaped plate 612 can be reset by the elastic force of the second spring 616 itself. After the third U-shaped plate 612 is reset, the line on the second U-shaped plate 607 can slide out of the wiring groove 603. At the same time, the first U-shaped plate 605 will finally be separated from the line. When the first U-shaped plate 605 is separated from the line, the second U-shaped plate 607 can be reset by the elastic force of the second spring 616 itself. After the second U-shaped plate 607 is reset, the line on the first U-shaped plate 605 can smoothly slide out of the wiring groove 603. When the lines on the first U-shaped plate 605, the second U-shaped plate 607 and the third U-shaped plate 612 are all slid out, the first expansion component 41 can be operated to increase the laying space of the line of the wire groove 1, so that the line can be expanded without taking out the line.

[0025] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the harness assembly 6 includes: a fixed harness rack 601 and a movable harness rack 602, the fixed harness rack 601 is fixedly connected to the inner side of the wire slot 1, the movable harness rack 602 is connected to the side of the hinge 4302, the side of the movable harness rack 602 is provided with a threaded groove 4303, the fixed harness rack 601 and the movable harness rack 602 are both provided with a harness slot 603, the inner side of the harness slot 603 is provided with a first sliding cavity 604, and the first sliding cavity 604 is movable inside A first U-shaped plate 605 is connected, and the two ends of the second spring 616 are fixedly connected between the first U-shaped plate 605 and the first sliding cavity 604. A second sliding cavity 606 is provided on the inner side of the cable tie groove 603, and a second U-shaped plate 607 is movably connected inside the second sliding cavity 606. The two ends of the second spring 616 are fixedly connected between the second sliding cavity 606 and the second U-shaped plate 607. A first pull groove 608 is provided at the bottom of the second U-shaped plate 607. A first through slot 609 is provided between the second sliding cavities 606, a first push rod 610 is fixedly connected to the top of the first U-shaped plate 605, a side of the first push rod 610 is movably connected to the inside of the first through slot 609, a top of the first push rod 610 is movably connected to the inside of the first pull slot 608, a third sliding cavity 611 is provided on the inner side of the wiring groove 603, a third U-shaped plate 612 is movably connected to the inside of the third sliding cavity 611, two ends of a second spring 616 are fixedly connected between the third U-shaped plate 612 and the third sliding cavity 611, a second pull slot 613 is provided at the bottom of the third U-shaped plate 612, a second through slot 614 is provided between the second sliding cavity 606 and the third sliding cavity 611, a bottom end of a second push rod 615 is fixedly connected to the top of the third U-shaped plate 612, a middle part of the second push rod 615 is movably connected to the inside of the second through slot 614, and a top of the second push rod 615 is movably connected to the inside of the second pull slot 613.

[0026] The pulling line can slide with the cable groove 603. When the line slides to the top of the first U-shaped plate 605, the line can squeeze the inner side of the first U-shaped plate 605. When the first U-shaped plate 605 is squeezed, it can slide through the first sliding cavity 604. When the first U-shaped plate 605 slides, it can squeeze the second spring 616. When the line is completely squeezed into the first U-shaped plate 605, the first U-shaped plate 605 can squeeze the line through the elastic force of the second spring 616. 05 can drive the first push rod 610 to move, and the first push rod 610 can slide through the first through slot 609 when moving, and the first push rod 610 can push the second U-shaped plate 607 to move through the first pull slot 608 when sliding, and the second U-shaped plate 607 can slide with the second sliding cavity 606 when moving, and the second U-shaped plate 607 can drive the second push rod 615 to move when sliding, and the second push rod 615 can slide with the second through slot 614 and the second pull slot 613 when moving. When the second U-shaped plate 607 slides, the second spring 616 can be squeezed. When the second U-shaped plate 607 slides to the specified position, the second push rod 615 will slide to the middle of the second through groove 614, and the top of the second push rod 615 will slide to the end of the second pull groove 613. At the same time, another set of lines can be inserted into the second U-shaped plate 607. When the lines are inserted, the second U-shaped plate 607 can be pushed. When the second U-shaped plate 607 is pushed, the second push rod 615 can be driven to continue to move. When the second push rod 615 moves, the third U-shaped plate 612 can be driven to move through the second pull groove 613. When the third U-shaped plate 612 moves, it can slide through the third sliding cavity 611. When the third U-shaped plate 612 slides, the second spring 616 can be squeezed. At this time, the lines can be inserted into the third U-shaped plate 612 for squeezing. When the third U-shaped plate 612 is squeezed, it can continue to slide with the third sliding cavity 611. When the third U-shaped plate 612 slides to the specified position, the lines can be clamped.

[0027] Working principle: Figure 1-Figure 8As shown, when the wiring trough for port equipment is used, the laying space inside the wire trough 1 can be adjusted by the expansion mechanism 4. When the expansion mechanism 4 is operated, the side plate 4103 and the pull plate 4106 can be pulled to slide the first telescopic plate 4102 and the second telescopic plate 4105. When the first telescopic plate 4102 slides, it can drive the movable cable rack 602 and the cable trough 603 to move. When the cable trough 603 on the movable cable rack 602 moves, it can be misaligned with the cable trough 603 on the fixed cable rack 601, thereby adjusting the laying space of the wire trough 1. After the adjustment of the slot 1 is completed, the fastening bolts can be used to fix the mounting member 5 at the specified position of the equipment. The fixing of the mounting member 5 is the fixing of the wire slot 1. After the wire slot 1 is fixed, the wires can be placed inside the wire slot 603 of the wire harness assembly 6. When placing the wires, the first U-shaped plate 605, the second U-shaped plate 607 and the third U-shaped plate 612 can be used to clamp the wires in sequence. After the wires are clamped, the fastening bolts can be used to fix the cover plate 2 to the side of the wire slot 1 through the connecting member 3. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wiring trough for port equipment, comprising: A wire trough (1), wherein a cover plate (2) is movably connected to the wire trough (1). It is characterized by: An expansion mechanism (4) is installed on the side surface of the wire trough (1) and the cover plate (2); the side surfaces of the cover plate (2) and the expansion mechanism (4) are fixedly connected with a connecting piece (3); the side surfaces of the wire trough (1) and the expansion mechanism (4) are fixedly connected with a mounting piece (5); and a wiring harness assembly (6) is installed on the expansion mechanism (4); The expansion mechanism (4) comprises: a first expansion component (41), the first expansion component (41) being mounted on a side of the wire slot (1), the first expansion component (41) also being mounted on a side of the cover plate (2), the first expansion component (41) comprising: a first extension cavity (4101), the first extension cavity (4101) being opened on a side of the wire slot (1), the first extension cavity (4101) being movably connected to a first telescopic plate (4102) inside; The side of the first telescopic plate (4102) is fixedly connected to a side plate (4103), the side of the side plate (4103) is fixedly connected to a mounting member (5), the side of the cover plate (2) is provided with a second extension cavity (4104), the interior of the second extension cavity (4104) is movably connected to a second telescopic plate (4105), the side of the second telescopic plate (4105) is fixedly connected to a pull plate (4106), and the side of the pull plate (4106) is fixedly connected to a connecting member (3); A slide groove (4107) is provided at the bottom of the first extension cavity (4101) and the top of the second extension cavity (4104); a slide rail (4109) is fixedly connected to the bottom of the first telescopic plate (4102) and the top of the second telescopic plate (4105); the slide rail (4109) is movably connected to the inside of the slide groove (4107); a limiting groove (4108) is provided at the top of the first extension cavity (4101) and the bottom of the second extension cavity (4104); a limiting block (4110) is fixedly connected to the top of the first telescopic plate (4102) and the bottom of the second telescopic plate (4105); the limiting block (4110) is movably connected to the inside of the limiting groove (4108); and a movable groove (4111) is provided at the top of the first extension cavity (4101).

2. The cable duct for port equipment according to claim 1, characterized in that: A positioning component (42) is installed inside the first extension component (41), and the positioning component (42) comprises: a positioning groove (4201), the positioning groove (4201) is opened at the top of the first extension cavity (4101), and the first telescopic plate (4102) is provided with an extrusion groove (4202).

3. The cable duct for port equipment according to claim 2, characterized in that: A first spring (4203) is fixedly connected inside the extrusion groove (4202), a positioning ball (4204) is fixedly connected to the end of the first spring (4203), and the positioning ball (4204) is snap-fitted to the top of the positioning groove (4201).

4. The cable duct for port equipment according to claim 3, characterized in that: A second extension component (43) is installed between the first extension component (41) and the wiring harness component (6), and the second extension component (43) comprises: the bottom of a movable plate (4301) is fixedly connected to the top of the first telescopic plate (4102), the side of the movable plate (4301) is movably connected to the inside of the movable groove (4111), and a hinge (4302) is installed on the side of the movable plate (4301).

5. The cable duct for port equipment according to claim 4, characterized in that: A wiring harness assembly (6) is installed on the side of the hinge (4302), a threaded groove (4303) is provided on the side of the wiring harness assembly (6), a bolt (4304) is connected to the internal thread of the threaded groove (4303), a guide groove (4305) is provided through the side of the side plate (4103), and a bolt (4304) is movably connected inside the guide groove (4305).

6. The cable duct for port equipment according to claim 5, characterized in that: The wiring harness assembly (6) comprises: a fixed wiring harness rack (601) and a movable wiring harness rack (602); the fixed wiring harness rack (601) is fixedly connected to the inner side of the wiring groove (1); the movable wiring harness rack (602) is connected to the side of the hinge (4302); the side of the movable wiring harness rack (602) is provided with the thread groove (4303); and both the fixed wiring harness rack (601) and the movable wiring harness rack (602) are provided with wiring grooves (603).

7. The cable duct for port equipment according to claim 6, characterized in that: A first sliding cavity (604) is provided on the inner side of the cable duct (603), a first U-shaped plate (605) is movably connected inside the first sliding cavity (604), two ends of a second spring (616) are fixedly connected between the first U-shaped plate (605) and the first sliding cavity (604), and a second sliding cavity (606) is provided on the inner side of the cable duct (603).

8. The cable duct for port equipment according to claim 7, characterized in that: The second sliding cavity (606) is movably connected to a second U-shaped plate (607) inside, and two ends of a second spring (616) are fixedly connected between the second sliding cavity (606) and the second U-shaped plate (607). A first pull groove (608) is provided at the bottom of the second U-shaped plate (607), and a first through groove (609) is provided between the first sliding cavity (604) and the second sliding cavity (606). A first push rod (610) is fixedly connected to the top of the first U-shaped plate (605).

9. The cable duct for port equipment according to claim 8, characterized in that: The side surface of the first push rod (610) is movably connected to the inside of the first through groove (609), and the top end of the first push rod (610) is movably connected to the inside of the first pull groove (608). A third sliding cavity (611) is provided on the inner side of the wiring groove (603), and a third U-shaped plate (612) is movably connected to the inside of the third sliding cavity (611). The two ends of a second spring (616) are fixedly connected between the third U-shaped plate (612) and the third sliding cavity (611).

10. The cable duct for port equipment according to claim 9, characterized in that: A second pull groove (613) is provided at the bottom of the third U-shaped plate (612), a second through groove (614) is provided between the second sliding cavity (606) and the third sliding cavity (611), the top of the third U-shaped plate (612) is fixedly connected to the bottom end of the second push rod (615), the middle part of the second push rod (615) is movably connected to the inside of the second through groove (614), and the top end of the second push rod (615) is movably connected to the inside of the second pull groove (613).

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