Portable contact network arm pre-assembly platform

Abstract

The present invention discloses a portable contact network arm pre-assembly platform, comprising a bottom frame and an insulator fixing seat, a sleeve double-ear fixing seat, a sleeve single-ear fixing seat, a sleeve seat fixing seat and a load-bearing cable seat fixing seat on the bottom frame, the bottom frame is telescopic or foldable, the insulator fixing seat is fixedly connected to the bottom frame, and the sleeve double-ear fixing seat, the sleeve single-ear fixing seat, the sleeve seat fixing seat and the load-bearing cable seat fixing seat are all slidably and detachably connected to the bottom frame. The portable contact network arm pre-assembly platform of the present invention has a simple structure, each fixing seat is detachably connected to the bottom frame, and is easy to transport. The arm can be pre-assembled at the construction site, and the arm can be installed in place at one time. The assembled arm has a unified standard, which improves the accuracy of the arm pre-assembly, does not require repeated debugging, improves construction efficiency, and saves manpower.

Description

Technical Field

[0001] The present invention relates to the technical field of railway component preparation, and more specifically, to a portable contact network arm pre-assembly platform. Background Art

[0002] The arm is a supporting device for the contact network. It supports and positions the contact network and bears electrical and mechanical loads. The safe operation of the arm structure directly affects the safe operation of high-speed trains. In the current construction of electrified railway contact networks, the pre-assembly of the arm is an important part of the emergency repair of the contact network on site. The speed of the pre-assembly and the size of the error will directly affect the progress of emergency repairs.

[0003] There are two existing ways to pre-assemble the arm: one is to pre-assemble the arm manually on-site, which has the defects of large errors in manual pre-assembly of the arm and the parts cannot be installed in place at one time; the other is to pre-assemble the arm using a CNC assembly table in the pre-assembly workshop, which is expensive and the CNC assembly table is large and inconvenient to move. Therefore, the arm can only be pre-assembled in the pre-assembly workshop and then transported to the site, which takes a long time. Summary of the invention

[0004] In order to solve the problems of large errors and long time consumption in the existing arm pre-assembly method, the present invention innovatively provides a portable contact network arm pre-assembly platform. The portable contact network arm pre-assembly platform has a simple structure, and each fixing seat is detachably connected to the bottom frame, which is easy to transport. The arm can be pre-assembled at the construction site, and the arm can be installed in place at one time. The assembled arm has a unified standard, which improves the accuracy of arm pre-assembly. There is no need for repeated debugging, which improves construction efficiency and saves manpower.

[0005] To achieve the above-mentioned technical objectives, the first aspect of the present invention discloses a portable contact network arm pre-assembly platform, including a bottom frame and an insulator fixing seat, a sleeve double-ear fixing seat, a sleeve single-ear fixing seat, a sleeve seat fixing seat and a load-bearing cable seat fixing seat on the bottom frame, the bottom frame is telescopic or foldable, the insulator fixing seat is fixedly connected to the bottom frame, and the sleeve double-ear fixing seat, the sleeve single-ear fixing seat, the sleeve seat fixing seat and the load-bearing cable seat fixing seat are all slidably and detachably connected to the bottom frame.

[0006] Furthermore, the insulator fixing seat includes a single-ear clamping seat and an insulator supporting plate, the single-ear clamping seat and the insulator supporting plate are arranged along the length direction of the bottom frame, and the bottom of the single-ear clamping seat and the bottom of the insulator supporting plate are fixedly connected to the bottom frame.

[0007] Furthermore, the single-ear clamping seat includes two first clamping plates arranged in parallel, and a first clamping groove for clamping the single ear of the insulator is formed between the two first clamping plates.

[0008] Furthermore, the sleeve double-ear fixing seat includes a first double-ear fixing seat and a second double-ear fixing seat, the first double-ear fixing seat and the second double-ear fixing seat are arranged along the length direction of the bottom frame, the first double-ear fixing seat includes a limiting column arranged along the length direction of the bottom frame and two parallel abutment plates, the limiting column is clamped between the two ears of the sleeve, and the two abutment plates are used to abut the front ends of the two ears of the sleeve; the second double-ear fixing seat is provided with a second clamping groove for clamping the other sleeve double ear.

[0009] Furthermore, the second double-ear fixing seat is cylindrical, and the second clamping groove is parallel to the axis of the cylinder.

[0010] Furthermore, the single-ear sleeve fixing seat is a flat wrist arm sleeve single-ear fixing seat or an oblique wrist arm sleeve single-ear fixing seat, and the flat wrist arm sleeve single-ear fixing seat includes two parallel second clamping plates, and a third clamping groove for clamping the single ear of the flat wrist arm sleeve is formed between the two second clamping plates; the oblique wrist arm sleeve single-ear fixing seat includes a U-shaped bolt clamping seat and a sleeve support plate arranged along the length direction of the bottom frame, and the U-shaped bolt clamping seat includes two relative V-shaped clamping plates.

[0011] Furthermore, the sleeve seat fixing seat includes a pipe supporting plate arranged along the length direction of the bottom frame and two third clamping plates arranged in parallel, and a fourth clamping groove is formed between the two third clamping plates.

[0012] Furthermore, the load-bearing cable seat fixing seat includes two fourth clamping plates arranged in parallel, and a fifth clamping groove for clamping the load-bearing cable seat bolt is formed between the two fourth clamping plates.

[0013] Furthermore, a wheel is fixed to one end of the bottom frame, and a handle is fixed to the other end of the bottom frame.

[0014] Furthermore, the bottom frame includes a first bottom frame and a second bottom frame, the first bottom frame and the second bottom frame are connected in a nested sliding manner, or the first bottom frame and the second bottom frame are hingedly connected via hinges.

[0015] The beneficial effects of the present invention are:

[0016] The portable contact network arm pre-assembly platform of the present invention has a simple structure, each fixing seat is detachably connected to the bottom frame, the bottom frame is telescopic or foldable, and is easy to transport. The arm can be pre-assembled at the construction site, the arm can be installed in place at one time, and the assembled arm has a unified standard, which improves the accuracy of arm pre-assembly, eliminates the need for repeated debugging, improves construction efficiency, and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view of a portable contact network arm pre-configuration platform according to an embodiment of the present invention;

[0018] Figure 2 is a top view of a telescopic bottom frame according to an embodiment of the present invention;

[0019] Figure 3 is a top view of a foldable bottom frame according to an embodiment of the present invention;

[0020] Figure 4 is a side view of a first double-ear fixing seat according to an embodiment of the present invention;

[0021] Figure 5 is a front view of a second double-ear fixing seat according to an embodiment of the present invention;

[0022] Figure 6 2. It is a front view of a flat wrist arm sleeve single ear fixing seat according to an embodiment of the present invention;

[0023] Figure 7 2 is a front view of a single-ear fixing seat of an oblique wrist arm sleeve according to an embodiment of the present invention;

[0024] Figure 8 is a front view of a sleeve seat fixing seat according to an embodiment of the present invention;

[0025] Fig. 9 It is a front view of the load-bearing cable seat fixing seat according to an embodiment of the present invention.

[0026] In the figure,

[0027] 1. Bottom frame; 11. First bottom frame; 12. Second bottom frame; 13. Hinge; 2. Insulator fixing seat; 21. Single-ear clamping seat; 22. Insulator support plate; 211. First clamping plate; 3. Bushing double-ear fixing seat; 31. First double-ear fixing seat; 32. Second double-ear fixing seat; 311. Limiting column; 312. Butt plate; 321. Second slot; 4. Bushing single-ear fixing seat; 41. Second clamping plate; 42. U-bolt clamping seat; 43. Bushing support plate; 421. V-shaped clamping plate; 5. Bushing seat fixing seat; 51. Pipe support plate; 52. Third clamping plate; 6. Bearing cable seat fixing seat; 61. Fourth clamping plate; 7. Wheels; 8. Handle; 9. Base. DETAILED DESCRIPTION

[0028] The portable contact network arm pre-assembly platform provided by the present invention is explained and illustrated in detail below in conjunction with the drawings in the specification.

[0029] The wrist arm mainly includes a bushing and an insulator fixed on the bushing, a bushing double ear, a bushing single ear, a bushing seat and a load-bearing cable seat. The bushing double ear is installed along the length direction of the bushing, and the bushing single ear is installed perpendicular to the length direction of the bushing. The bushing single ear is fixed to the bushing by a U-bolt.

[0030] like Figure 1As shown, this embodiment specifically discloses a portable contact network arm pre-assembly platform, including a bottom frame 1 and an insulator fixing seat 2, a sleeve double-ear fixing seat 3, a sleeve single-ear fixing seat 4, a sleeve seat fixing seat 5 and a load-bearing cable seat fixing seat 6 on the bottom frame 1. The bottom frame 1 is telescopic or foldable, the insulator fixing seat 2 is fixedly connected to the bottom frame 1, and the sleeve double-ear fixing seat 3, the sleeve single-ear fixing seat 4, the sleeve seat fixing seat 5 and the load-bearing cable seat fixing seat 6 are all slidably and detachably connected to the bottom frame 1. The telescopic or foldable bottom frame 1 is reduced in size when not in use, which is convenient for storage and transportation. The sleeve double-ear fixing seat 3, the sleeve single-ear fixing seat 4, the sleeve seat fixing seat 5 and the load-bearing cable seat fixing seat 6 can slide along the bottom frame 1, and the distance between each fixing seat can be adjusted according to the actual needs of arm pre-assembly. In this embodiment, the bottom frame 1 is made of channel steel, and the bottoms of the sleeve double-ear fixing seat 3, the sleeve single-ear fixing seat 4, the sleeve seat fixing seat 5 and the bearing cable seat fixing seat 6 can be provided with an inverted concave base 9, which is stuck on the notch of the bottom frame 1 and can slide along the length direction of the bottom frame 1. Moreover, the sleeve double-ear fixing seat 3, the sleeve single-ear fixing seat 4, the sleeve seat fixing seat 5 and the bearing cable seat fixing seat 6 are all detachably connected to the bottom frame 1, installed on the bottom frame 1 when in use, and removed when not in use, for easy storage and transportation. The required fixing seat can be reasonably selected according to the specific pre-configuration situation, which is flexible.

[0031] like Figure 2 As shown, the bottom frame 1 includes a first bottom frame 11 and a second bottom frame 12. The first bottom frame 11 and the second bottom frame 12 are connected in a nested sliding manner to achieve the expansion and contraction of the bottom frame 1. The second bottom frame 12 can be completely received in the first bottom frame 11. The inner wall of the first bottom frame 11 is provided with a slide groove, which is arranged along the length direction of the first bottom frame 11. The outer wall of the second bottom frame 12 is provided with a slider matching the slide groove. The length of the slide groove is less than the length of the first bottom frame 11. The end of the slide groove close to the second bottom frame plays a limiting role to prevent the slider from completely sliding out of the slide groove. When the second bottom frame 12 is completely received in the first bottom frame 11, the entire bottom frame 1 only occupies the volume of the first bottom frame 11, which is convenient for transportation.

[0032] like Figure 3 As shown, the first bottom frame 11 and the second bottom frame 12 are hingedly connected by a hinge 13, so that the bottom frame 1 can be folded. The rotation axis of the hinge 13 is perpendicular to the length direction of the bottom frame 1. When the second bottom frame 12 rotates toward the first bottom frame 11, the second bottom frame 12 can be almost completely stored in the first bottom frame 11 to the greatest extent, reducing the volume and saving space.

[0033] like Figure 1As shown, the insulator fixing seat 2 includes a single-ear clamping seat 21 and an insulator support plate 22, which are arranged along the length direction of the bottom frame 1, and the bottom of the single-ear clamping seat 21 and the bottom of the insulator support plate 22 are both fixedly connected to the bottom frame 1. The insulator fixing seat 2 is used to fix the wrist arm insulator, and fix the wrist arm insulator on the bottom frame 1. The single-ear clamping seat 21 is used to fix and limit the single ear of the insulator. The single-ear clamping seat 21 includes two first clamping plates 211 arranged in parallel, and a first clamping groove for clamping the single ear of the insulator is formed between the two first clamping plates 211. The single ear of the insulator is clamped in the first clamping groove, and the insulator support plate 22 is supported on the bottom of the insulator, so that the single ear of the insulator remains in a vertical state perpendicular to the top surface of the bottom frame 1. The insulator clamping plate is preferably an arc-shaped plate, which supports the insulator and limits it at the same time, thereby ensuring that the U-bolts used for fastening on the wrist arm near the insulator are vertical, ensuring that when the wrist arm is pre-assembled and fastened, the two U-bolt pressure plates used for fastening are in the same level, and the single ear of the insulator is not skewed.

[0034] like Figure 1 As shown, the sleeve double-ear fixing seat 3 includes a first double-ear fixing seat 31 and a second double-ear fixing seat 32, and the first double-ear fixing seat 31 and the second double-ear fixing seat 32 are arranged along the length direction of the bottom frame 1. Figure 1 and 4 As shown, the first double-ear fixing seat 31 includes a limiting column 311 arranged along the length direction of the bottom frame 1 and two parallel abutment plates 312, the two abutment plates 312 are located at the front end of the limiting column 311, and the distance between the two abutment plates 312 is the same as the spacing between the two ears, the limiting column 311 is inserted between the two ears of the sleeve, and the two abutment plates 312 are used to abut the front end of the two ears of the sleeve to fix and limit one of the two ears; Figure 1 and 5 As shown, the second double-ear fixing seat 32 is provided with a second slot 321 for clamping the other double-ear of the sleeve, and the double-ear is clamped into the second slot 321 for fixing and limiting. The second double-ear fixing seat 32 is cylindrical, and the second slot 321 is parallel to the axis of the cylinder. The second slot 321 is opened at the top of the cylinder, and when the double-ear of the sleeve is clamped, the double-ear of the sleeve can move downward from the top and clamp into the second slot 321. Two double ears are used when the arm is pre-assembled, and the directions of the two ears must be kept consistent. The first double-ear fixing seat 31 is used to fix one of the double ears, and the second double-ear fixing seat 32 is used to fix the other double ear, so that the two ears are arranged along the length direction of the arm and the bottom frame 1, and the pre-assembly direction is kept consistent.

[0035] The sleeve single ear fixing seat 4 is a flat arm sleeve single ear fixing seat or an oblique arm sleeve single ear fixing seat, which is selected and used according to specific pre-assembly requirements and selectively assembled on the bottom frame 1. During pre-assembly, the single ear is fixed to the sleeve by a U-shaped bolt, which surrounds the sleeve, and the two ends of the U-shaped bolt are connected to the two sides of the single ear. The installation direction of the sleeve single ear is exactly opposite for the flat arm and the oblique arm, so the fixing seats used are also different. Figure 6 As shown, the flat wrist arm sleeve single ear fixing seat includes two second clamping plates 41 arranged in parallel, and a third clamping groove for clamping the flat wrist arm sleeve single ear is formed between the two second clamping plates 41. The flat wrist arm sleeve single ear is clamped in the third clamping groove from top to bottom, and the flat wrist arm sleeve single ear is vertically downward. The U-shaped bolt is located above the single ear, and the opening of the U-shaped bolt faces downward. The first clamping groove and the third clamping groove have the same direction, so that the main surfaces of the insulator single ear and the flat wrist arm sleeve single ear are along the length direction of the bottom frame 1, but the insulator single ear is placed vertically front to back and the flat wrist arm single ear is placed vertically up and down. Figure 1 and 7 As shown, the oblique arm sleeve single ear fixing seat includes a U-bolt holder 42 and a sleeve support plate 43 arranged along the length direction of the bottom frame 1, the U-bolt holder 42 includes two opposite V-shaped plates 421, the openings of the two V-shaped plates 421 are opposite, the sleeve support plate 43 holds up the sleeve, the closed end of the U-bolt is clamped in the V-shaped openings of the two V-shaped plates 421, and the opening of the U-bolt faces upward, so that the single ear is vertically upward, and the main surface of the single ear is along the length direction of the bottom frame 1, which is consistent with the pre-assembled direction. The sleeve support plate 43 is preferably two vertical plates, and the two vertical plates are spaced a distance apart to fix and limit the sleeve.

[0036] The sleeve seat includes a sleeve sleeved on the sleeve and a single ear fixedly connected to the sleeve, such as Figure 1 and 8 As shown, the sleeve seat fixing seat 5 includes a tube support plate 51 arranged along the length direction of the bottom frame 1 and two third clamping plates 52 arranged in parallel, and a fourth clamping groove is formed between the two third clamping plates 52. When fixing the flat wrist arm sleeve seat, the sleeve of the sleeve seat is lifted by the tube support plate 51, and the single ear of the sleeve seat is clamped in the fourth clamping groove, so that the direction of the single ear of the sleeve seat is consistent with the direction of the single ear of the flat wrist arm sleeve, and both are vertically downward, ensuring that the flat wrist arm is vertical and not skewed after assembly. When fixing the oblique wrist arm sleeve seat, the single ear of the sleeve seat needs to be vertically upward, then the tube support plate 51 is supported under the sleeve, and the two third clamping plates 52 are supported under the sleeve, playing the role of a support plate, so that the single ear of the sleeve seat is vertically upward, consistent with the direction of the single ear of the oblique wrist arm sleeve, ensuring that the oblique wrist arm is vertical and not skewed after assembly.

[0037] like Figure 1 and 9As shown, the load-bearing cable seat fixing seat 6 includes two fourth clamping plates 61 arranged in parallel, and a fifth clamping groove for clamping the bolt of the load-bearing cable seat is formed between the two fourth clamping plates 61. The bolt of the load-bearing cable seat is clamped in the fifth clamping groove, the load-bearing cable groove is kept horizontal, and the load-bearing cable seat is fixed and aligned, and the direction is consistent with other parts.

[0038] A wheel 7 is fixed at one end of the bottom frame 1, and a handle 8 is fixed at the other end of the bottom frame 1. During transportation, the wheel 7 is placed on the ground, and the bottom frame 1 can be pulled to move by pulling the handle 8, which is convenient for transportation and carrying. The wheel 7 is a nylon wheel 7, making the whole body light and easy to carry.

[0039] The bottom frame 1 of this embodiment is made of 4mm thickened channel steel, which can be folded or telescopic. The total length is 3500mm, and the length after folding or telescopic is 1800mm. The whole is light and easy to carry.

[0040] The working process of the arm pre-assembly platform of the present invention for arm pre-assembly is as follows: first, the second bottom frame 12 is stretched out of the first bottom frame 11, or the second bottom wall frame 12 is rotated out of the first bottom frame 11, so that the second bottom frame 12 and the first bottom frame 11 are in the same straight line, and the bottom frame 1 is unfolded. Then, according to the specific pre-assembly requirements, other fixing seats except the insulator fixing seat 2 are selected, such as the flat arm sleeve single-ear fixing seat is selected when pre-assembling the flat arm, and the oblique arm sleeve single-ear fixing seat is selected when pre-assembling the oblique arm. The base is slidably connected to the bottom frame, and the distance between each fixing seat is adjusted by sliding. Then, each component is installed on the corresponding fixing seat, and a complete arm can be assembled. The whole process is simple to operate, and the pre-assembly arm has a unified standard. After the pre-assembly is completed, each fixing seat is slid and disassembled, and the bottom frame is shortened or folded for storage.

[0041] The arm pre-assembly platform of the present invention can fix the various parts of the arm vertically, connect the parts tightly and firmly, ensure that the flat and oblique arms are assembled in place at one time, and can ensure the safety of the contact network power supply system and the stability of the high-speed train bow-net coordination. It is suitable for pre-assembly of the arm for emergency and difficult repairs on site, shortening the repair time, improving work efficiency and saving costs. The fixing seats of each part on the bottom frame 1 can be arbitrarily disassembled, and the foldable or telescopic design with handles and wheels 7 makes it more portable and easy to carry.

[0042] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable contact network arm pre-assembly platform, characterized in that: The invention comprises a bottom frame (1) and an insulator fixing seat (2), a bushing double-ear fixing seat (3), a bushing single-ear fixing seat (4), a bushing seat fixing seat (5) and a load-bearing cable seat fixing seat (6) on the bottom frame (1); the bottom frame (1) is telescopic or foldable; the insulator fixing seat (2) is fixedly connected to the bottom frame (1); the bushing double-ear fixing seat (3), the bushing single-ear fixing seat (4), the bushing seat fixing seat (5) and the load-bearing cable seat fixing seat (6) are all slidably and detachably connected to the bottom frame (1); The insulator fixing seat (2) comprises a single-ear clamping seat (21) and an insulator supporting plate (22), the single-ear clamping seat (21) and the insulator supporting plate (22) are arranged along the length direction of the bottom frame (1), and the bottom of the single-ear clamping seat (21) and the bottom of the insulator supporting plate (22) are both fixedly connected to the bottom frame (1); The sleeve double-ear fixing seat (3) comprises a first double-ear fixing seat (31) and a second double-ear fixing seat (32), the first double-ear fixing seat (31) and the second double-ear fixing seat (32) being arranged along the length direction of the bottom frame (1), the first double-ear fixing seat (31) comprising a limiting column (311) and two parallel abutment plates (312) arranged along the length direction of the bottom frame (1), the limiting column (311) being clamped between the sleeve double ears, and the two abutment plates (312) being used to abut against the front ends of the sleeve double ears; the second double-ear fixing seat (32) is provided with a second clamping groove (321) for clamping the other sleeve double ears, the second double-ear fixing seat (32) is cylindrical, and the second clamping groove (321) is parallel to the axis of the cylinder; The sleeve single-ear fixing seat (4) is a flat wrist arm sleeve single-ear fixing seat or an oblique wrist arm sleeve single-ear fixing seat, and the flat wrist arm sleeve single-ear fixing seat comprises two second clamping plates (41) arranged in parallel, and a third clamping groove for clamping the flat wrist arm sleeve single ear is formed between the two second clamping plates (41); the oblique wrist arm sleeve single-ear fixing seat comprises a U-shaped bolt clamping seat (42) and a sleeve supporting plate (43) arranged along the length direction of the bottom frame (1), and the U-shaped bolt clamping seat (42) comprises two opposite V-shaped clamping plates (421); The sleeve seat fixing seat (5) comprises a pipe supporting plate (51) arranged along the length direction of the bottom frame (1) and two third clamping plates (52) arranged in parallel, and a fourth clamping groove is formed between the two third clamping plates (52).

2. The portable contact network arm pre-configuration platform according to claim 1 is characterized in that: The single-ear clamping seat (21) comprises two first clamping plates (211) arranged in parallel, and a first clamping groove for clamping a single ear of the insulator is formed between the two first clamping plates (211).

3. The portable contact network arm pre-configuration platform according to claim 1 is characterized in that: The load-bearing cable seat fixing seat (6) comprises two fourth clamping plates (61) arranged in parallel, and a fifth clamping groove for clamping a bolt of the load-bearing cable seat is formed between the two fourth clamping plates (61).

4. The portable contact network arm pre-configuration platform according to claim 1, characterized in that: A wheel (7) is fixed to one end of the bottom frame (1), and a handle (8) is fixed to the other end of the bottom frame (1).

5. The portable contact network arm pre-configuration platform according to claim 1 is characterized in that: The bottom frame (1) comprises a first bottom frame (11) and a second bottom frame (12); the first bottom frame (11) and the second bottom frame (12) are connected in a nested sliding manner, or the first bottom frame (11) and the second bottom frame (12) are hingedly connected via a hinge (13).

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