Catenary pillar

Abstract

The invention discloses an overhead line system supporting column which comprises a supporting column body, a horizontal cantilever and an inclined cantilever are installed on the supporting column body, insulators are installed on the horizontal cantilever and the inclined cantilever through bolts, and a connection locking mechanism is arranged at the intersection of the horizontal cantilever and the inclined cantilever. A traction arm rod is rotationally mounted on the supporting column main body; by arranging the traction arm rod, when an insulator on the cantilever needs to be replaced, a worker rotates the traction arm rod on the side of the supporting column main body, so that the end part of the traction arm rod is inserted into the connection locking mechanism, the connection locking mechanism can lock the traction arm rod, and at the moment, the horizontal cantilever and the inclined cantilever are obliquely pulled on the supporting column main body through the traction arm rod; and a worker does not need to move to the bottom of the carrier cable along the inclined cantilever to install a steel wire sleeve, so that the worker can replace the insulator conveniently, and the safety of the worker during insulator replacement is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway catenary equipment, in particular to a catenary support post. BACKGROUND

[0002] The catenary support post is a structural component for supporting the catenary, which supports the catenary wire and related equipment by being installed on both sides or in the middle of the track, ensuring the stability and reliability of the catenary. The catenary support post is provided with a wrist arm assembly, which is usually composed of a horizontal wrist arm and an inclined wrist arm. An insulator is installed on the wrist arm assembly. The insulator prevents current from leaking to the ground or other equipment through the wrist arm assembly or the support post, thereby avoiding electrical short circuit and electric shock accidents. During long-term operation, the insulator needs to withstand the tension of the contact wire, wind force and other mechanical loads. Long-term stress can cause the material of the insulator to fatigue, resulting in a decrease in the strength of the insulator. When the strength of the insulator decreases to a certain extent, it cannot withstand normal mechanical loads and is prone to accidents such as breakage. Therefore, the insulator needs to be replaced regularly.

[0003] As disclosed in the patent with publication number CN222613988U and publication date March 14, 2025, a catenary support post based on high platform for easy maintenance is disclosed, which includes a stand column, a stand column base is arranged at the lower end of the stand column, a cross beam is fixedly connected to the upper end of the side surface of the stand column for installing high-voltage wires, an insulating mounting piece is fixedly inserted on the cross beam, a protective wall is arranged on the side surface of the stand column base, a handrail is fixedly connected to the upper side surface of the protective wall, a corrugated steel plate is arranged on the inner wall of the protective wall, and a support protection device is arranged between the protective wall and the stand column base.

[0004] When replacing the insulator on the existing wrist arm, a wire sleeve needs to be installed between the wrist arm and the support post, so that the wrist arm can be hung by the wire sleeve when the insulator on the wrist arm is removed, facilitating construction. However, when installing the wire sleeve, the worker needs to move along the inclined wrist arm to the vicinity of the load cable base in the air, fix the wire sleeve around the load cable base, and then return to the support post side. After gradually tightening the wire sleeve by the hand-operated hoist to hang the wrist arm, the worker replaces the insulator. When the worker installs the wire sleeve in the air, a lot of time is wasted, and the worker needs to move a certain distance along the inclined wrist arm, which has certain safety hazards. SUMMARY

[0005] The purpose of the present application is to provide a catenary support post to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The contact network pillar comprises a pillar body, a horizontal arm and an inclined arm are installed on the pillar body, insulators are installed on the horizontal arm and the inclined arm through bolts, a connecting locking mechanism is arranged at the intersection of the horizontal arm and the inclined arm, a traction arm rod is rotatably installed on the pillar body, and the connecting locking mechanism can lock the traction arm rod when the end of the traction arm rod is inserted into the connecting locking mechanism, and the horizontal arm and the inclined arm are both inclined on the pillar body through the traction arm rod.

[0008] The traction arm rod comprises a separable rotating section and a connecting section, the rotating section is rotatably connected with the pillar body through a first rotating shaft, a thread is arranged on the side wall of the end of the rotating section away from the pillar body, the connecting section is sleeved on the outside of the rotating section, and the connecting section is threadedly connected with the rotating section.

[0009] The connecting locking mechanism comprises a connecting frame and a locking part arranged in the connecting frame, the horizontal arm and the inclined arm both pass through the connecting frame, an insertion hole for inserting the traction arm rod is arranged on the connecting frame, the connecting section is inserted into the insertion hole, and the locking part locks the connecting section by screwing the connecting section.

[0010] The locking part comprises a locking bolt, the locking bolt is coaxially arranged with the insertion hole, a threaded hole matched with the locking bolt is arranged on the end of the connecting section away from the rotating section, and the locking bolt is screwed into the threaded hole to fix the connecting section when the connecting section is rotated.

[0011] The pillar body is provided with a placing groove for placing the traction arm rod.

[0012] The horizontal arm and the inclined arm are rotatably installed on the pillar body through a second rotating shaft, the axial direction of the second rotating shaft is parallel to the axial direction of the pillar body, the pillar body is provided with two sets of limiting parts corresponding to the horizontal arm and the inclined arm.

[0013] The pillar body is further provided with a locking cavity, the locking cavity is communicated with the top of the placing groove, the limiting part comprises two limiting blocks, the limiting blocks are rotatably installed on the pillar body through a third rotating shaft, the third rotating shaft is connected with the pillar body through a torsional spring, the third rotating shaft divides the limiting blocks into two parts, one part is located on the two sides of the corresponding horizontal arm or inclined arm and is used for limiting the rotation angle of the corresponding horizontal arm or inclined arm, and the other part extends into the locking cavity.

[0014] The limiting block is rotationally installed on the support body, and an adjusting mechanism is further arranged on the support body, which adjusts two limiting blocks to clamp the corresponding horizontal or inclined wrist arm based on the rotation of the traction arm rod, so as to limit the rotation of the horizontal and inclined wrist arms.

[0015] The adjusting mechanism comprises a trigger slide rod which is slidingly installed in the locking cavity in the vertical direction, a reset spring is connected between the trigger slide rod and the support body, two extrusion wedges are arranged on the trigger slide rod, and the two extrusion wedges are arranged in an upper and lower interval in the vertical direction, and the two extrusion wedges correspond to the two groups of limiting parts respectively.

[0016] The extrusion wedge is inverted conical, the inverted conical extrusion wedge extrudes the corresponding two limiting blocks based on the downward movement of the trigger slide rod, and the two limiting blocks gradually converge and clamp the corresponding horizontal or inclined wrist arm based on the inclined surface of the inverted conical extrusion wedge.

[0017] The beneficial effects of the present application are that in the above technical solution, the contact net support provided by the present application is provided with a traction arm rod, when the insulator on the wrist arm needs to be replaced, the traction arm rod is rotated on the side of the support body by the worker, so that the end of the traction arm rod is inserted into the connecting and locking mechanism, the connecting and locking mechanism locks the traction arm rod, at this time, the horizontal wrist arm and the inclined wrist arm are hung on the support body through the traction arm rod, the worker does not need to move along the inclined wrist arm to the bottom of the load-bearing cable to install the steel wire sleeve, the worker is facilitated to replace the insulator, and the safety of the worker when replacing the insulator is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 The structure schematic diagram of the contact net support provided by the embodiment of the present application is shown in the figure.

[0020] Figure 2 The connection state schematic diagram of the traction arm rod and the connecting and locking mechanism provided by the embodiment of the present application is shown in the figure.

[0021] Figure 3 The internal structure schematic diagram of the traction arm rod and the locking frame when connected is shown in the figure.

[0022] Figure 4The connection schematic view of the horizontal arm, the inclined arm and the support body provided for another embodiment of the present application;

[0023] Figure 5 The connection schematic view of the horizontal arm, the inclined arm and the support body provided for another embodiment of the present application Figure 4 The enlarged schematic view of A of the present application;

[0024] Figure 6 The structure schematic view of the adjusting mechanism provided for another embodiment of the present application;

[0025] Figure 7 The connection schematic view of the horizontal arm, the inclined arm and the support body provided for another embodiment of the present application Figure 6 The enlarged schematic view of B of the present application;

[0026] Figure 8 The state schematic view of the limiting block when it is opened provided for another embodiment of the present application;

[0027] Figure 9 The state schematic view of the limiting block when it clamps the corresponding arm provided for another embodiment of the present application.

[0028] Explanation of reference signs:

[0029] 1, support body; 2, horizontal arm; 3, inclined arm; 4, insulator; 5, connection locking mechanism; 51, connection frame; 52, locking part; 53, insertion hole; 6, traction arm rod; 61, rotating section; 62, connecting section; 63, first rotating shaft; 64, threaded hole; 7, second rotating shaft; 8, limiting part; 81, limiting block; 82, third rotating shaft; 9, adjusting mechanism; 91, trigger slide rod; 92, extrusion wedge; 93, return spring; 10, placing groove; 11, locking cavity. DETAILED DESCRIPTION

[0030] In order for those skilled in the art to better understand the technical solutions of the present application, the following will combine the accompanying drawings to further introduce the present application in detail. Figures 1-9 The present application is further described in detail.

[0031] The present application provides a catenary support pillar, which comprises a support body 1, a horizontal arm 2 and an inclined arm 3 are installed on the support body 1, an insulator 4 is installed on the horizontal arm 2 and the inclined arm 3 through bolts, a connection locking mechanism 5 is arranged at the intersection of the horizontal arm 2 and the inclined arm 3, a traction arm rod 6 is rotatably installed on the support body 1, the connection locking mechanism 5 can lock the traction arm rod 6 when the end of the traction arm rod 6 is inserted into the connection locking mechanism 5, and the horizontal arm 2 and the inclined arm 3 are both inclinedly pulled on the support body 1 through the traction arm rod 6.

[0032] Specifically, the pillar body 1 is preferably made of steel material, the pillar body 1 is rectangular in cross section, the pillar body 1 is vertically installed on the ground, the horizontal arm 2 is horizontally or substantially horizontally arranged on the pillar body 1, one end of the horizontal arm 2 is connected with the pillar body 1, the inclined arm 3 is obliquely arranged on the pillar body 1, the inclined arm 3 is located below the horizontal arm 2, one end of the inclined arm 3 is connected with the pillar body 1, the other end of the inclined arm 3 is connected with the end of the horizontal arm 2 away from the pillar body 1, at this time, the pillar body 1, the horizontal arm 2 and the inclined arm 3 constitute a triangular stable support structure, wherein the insulator 4 is installed on the side of the horizontal arm 2 and the inclined arm 3 close to the pillar body 1 by means of bolt connection;

[0033] When it is necessary to replace the insulator 4, the worker climbs to the top area of the pillar body 1, then moves along the inclined arm 3 away from the pillar body 1 until moving to the vicinity of the cable support base (the cable support base is used to support and fix the cable, in some arm structures, the cable support base is installed on the side of the arm away from the pillar body 1 by means of bolt to ensure the stable support of the cable, which is the prior art, and its principle is not described in detail), then fixes the wire sleeve around the cable support base for one circle and returns to the pillar body 1, then hoists the whole arm group by means of the hand-operated hoist to suddenly drop and tighten the wire sleeve, and then replaces the insulator 4 on the arm.

[0034] The prior art has the following disadvantages: when the worker installs the wire sleeve, he needs to move a distance along the inclined arm 3, and after winding the wire sleeve on the cable support base, he can replace the insulator 4, because the replacement of the insulator 4 on the overhead line support belongs to high-altitude operation, when the worker moves along the inclined arm 3 in the air, there is a certain safety hazard.

[0035] In the embodiment, the traction arm rod 6 is rotatably installed on the support body 1, the traction arm rod 6 is in the shape of a straight rod as a whole, and the connecting and locking mechanism 5 is arranged at the intersection of the horizontal arm 2 and the inclined arm 3, which is used to fix the end of the traction arm rod 6 away from the support body 1. When the insulator 4 needs to be replaced, the worker climbs to the top of the support body 1, then rotates the traction arm rod 6 so that the open end of the traction arm rod 6 is inserted into the connecting and locking mechanism 5, and the connecting and locking mechanism 5 fixes the traction arm rod 6 (the connecting and locking mechanism 5 can be fixed by magnetic attraction or spring latch). At this time, the horizontal arm 2 and the inclined arm 3 are obliquely pulled on the support body 1 by the traction arm rod 6. When the insulator 4 is replaced, the worker does not need to move to the bottom of the bearing cable along the inclined arm 3 to install the wire sleeve, but only needs to climb on the support body 1 to replace the insulator 4, which greatly improves the safety of replacing the insulator 4 in the air.

[0036] Preferably, the traction arm rod 6 comprises a telescopic rotating section 61 and a connecting section 62, the rotating section 61 is rotatably connected to the support body 1 through a first rotating shaft 63, a thread is arranged on the side wall of the end of the rotating section 61 away from the support body 1, the connecting section 62 is sleeved on the outside of the rotating section 61, and the connecting section 62 is threadedly connected with the rotating section 61; the connecting and locking mechanism 5 comprises a connecting frame 51 and a locking part 52 arranged in the connecting frame 51, the horizontal arm 2 and the inclined arm 3 pass through the connecting frame 51, the connecting frame 51 is provided with an insertion hole 53 for inserting the connecting section 62 of the traction arm rod 6, when the end of the connecting section 62 away from the support body 1 is aligned with the insertion hole 53, the connecting section 62 is screwed, the end of the connecting section 62 away from the support body 1 is gradually inserted into the insertion hole 53, and the locking part 52 locks the connecting section 62; the locking part 52 preferably comprises a locking bolt, the locking bolt is coaxially arranged with the insertion hole 53, a threaded hole 64 matched with the locking bolt is arranged on the end of the connecting section 62 away from the rotating section 61, and the locking bolt is screwed into the threaded hole 64 to fix the connecting section 62 when the connecting section 62 is rotated in the insertion hole 53.

[0037] Specifically, the axial direction of the first rotating shaft 63 is perpendicular to the axial direction of the support body 1. When the insulator 4 needs to be replaced, the worker climbs to the top of the support body 1, then rotates the traction arm 6 so that the connecting section 62 of the traction arm 6 is opposite the insertion hole 53 on the connecting frame 51, then the worker twists the connecting section 62. Since the connecting section 62 and the rotating section 61 are connected by a threaded connection, as the connecting section 62 rotates, the connecting section 62 and the rotating section 61 gradually separate (equivalent to the length of the traction arm 6 gradually increasing), and the connecting section 62 gradually inserts into the insertion hole 53 on the connecting frame 51. At this time, continue to twist the connecting section 62, the locking bolt in the connecting frame 51 gradually inserts into the threaded hole 64 at the end of the rotating section 61 and forms a threaded connection fixed form. At this time, the locking bolt in the connecting frame 51 and the threaded hole 64 at the end of the connecting section 62 are threadedly connected, and the connecting section 62 and the rotating section 61 are threadedly connected. When the worker needs to disassemble the insulator 4 on the horizontal wrist arm 2 and the inclined wrist arm 3, the traction arm 6 lifts the horizontal wrist arm 2 and the inclined wrist arm 3, ensuring that the replacement of the insulator 4 can be carried out smoothly.

[0038] In this embodiment, the operation process is simple and direct by using the threaded connection fixing method. Only the connecting section 62 is screwed into the insertion hole 53 on the connecting frame 51, and the locking bolt in the connecting frame 51 can be threadedly locked with the threaded hole 64 on the connecting section 62. This can be achieved by tightening with a wrench or other tool. The operation process is easy to master and efficient. Compared with the electromagnetic fixing method, if there is a sudden power failure, the fixing effect may be lost, which may pose a certain safety hazard. The elastic latch may need to overcome a large elastic force during insertion and removal, which is relatively laborious to operate, and it is also not convenient to insert and remove the latch in the air (the top of the support body 1). In this embodiment, when the traction arm 6 lifts the horizontal wrist arm 2 and the inclined wrist arm 3, the first rotating shaft 63 connected to the traction arm 6 should be frequently checked and replaced as the main force receiving part.

[0039] Obviously, the traction arm 6 can be axially telescopic and locked, not limited to the rotating section 61 and the connecting section 62 described above. The threaded connection has high connection strength but takes a long time to operate. Other options include directly axially movable sleeve connection but with a limiting hole and a limiting pin structure. Correspondingly, the connecting and locking mechanism 5 is not limited to the connecting frame 51 and the locking portion 52 arranged therein as described above. For example, one hook of the traction arm 6 is directly hung on one crossbar of the connecting and locking mechanism 5, or the traction arm 6 and the connecting and locking mechanism 5 are provided with one insertion slot each, and a plug pin can be inserted after the two insertion slots are aligned. Obviously, there are many detachable connection mechanisms and axially telescopic locking mechanisms in the prior art.

[0040] Preferably, the support body 1 is provided with a placing groove 10 for placing the traction arm rod 6, the placing groove 10 is vertically arranged on the support body 1 and is above the horizontal arm 2, when the replacement of the insulator 4 is not needed, the traction arm rod 6 can be accommodated in the placing groove 10, which is convenient for the staff to maintain other power problems on the support body 1.

[0041] It should be noted that, in some windy weather, under the action of wind force, the catenary arm (in this embodiment, namely the horizontal arm 2 and the inclined arm 3) will be affected by the wind force, which will cause the stress of the support body 1 to increase, and in severe cases, it will even cause the horizontal arm 2 or the inclined arm 3 to be deformed and damaged. The existing horizontal arm 2 and inclined arm 3 are usually arranged to be rotatable, which can adapt to the swinging of the contact wire caused by the wind, reduce the impact of the wind force on the arm structure, and improve the wind resistance performance. When the staff replaces the insulator 4, the rotatable horizontal arm 2 and inclined arm 3 increase the difficulty of replacing the insulator 4.

[0042] To solve the above problems, in another embodiment of the present application, the horizontal arm 2 and the inclined arm 3 are respectively rotatably installed on the support body 1 through a second rotating shaft 7, the support body 1 is provided with two sets of limiting parts 8 corresponding to the horizontal arm 2 and the inclined arm 3, respectively, the support body 1 is provided with a locking cavity 11 communicating with the top of the placing groove 10, the limiting part 8 includes two limiting blocks 81, and the two limiting blocks 81 are respectively arranged on the two sides of the horizontal arm 2 or the inclined arm 3; the limiting block 81 is rotatably installed on the support body 1 through a third rotating shaft 82, the third rotating shaft 82 is connected with the support body 1 through a torsional spring (not shown in the torsional spring diagram), and the third rotating shaft 82 divides the limiting block 81 into two parts, one part is arranged on the two sides of the corresponding horizontal arm 2 or inclined arm 3, and is used for limiting the rotating angle of the corresponding horizontal arm 2 or inclined arm 3; the other part extends into the locking cavity 11, and the support body 1 is further provided with an adjusting mechanism 9, based on the rotation of the traction arm 6, the adjusting mechanism 9 adjusts the two limiting blocks 81 to clamp the corresponding horizontal arm 2 or inclined arm 3, and limits the rotation of the horizontal arm 2 and the inclined arm 3; the adjusting mechanism 9 includes a trigger sliding rod 91 slidably installed in the locking cavity 11 in the vertical direction, a return spring 93 connected between the trigger sliding rod 91 and the support body 1, two extrusion wedges 92 arranged on the trigger sliding rod 91 in the vertical direction, and the two extrusion wedges 92 are arranged in the vertical direction in the vertical direction, and the two extrusion wedges 92 are respectively corresponding to the two sets of limiting parts 8; the extrusion wedge 92 is inverted conical, based on the downward movement of the trigger sliding rod 91, the extrusion wedge 92 of the inverted cone body extrudes the corresponding two limiting blocks 81, based on the slope of the inverted conical shape, the two limiting blocks 81 gradually converge and clamp the corresponding horizontal arm 2 or inclined arm 3, and the fixing of the horizontal arm 2 or inclined arm 3 is realized.

[0043] Specifically, in the embodiment, the axial direction of the second rotating shaft 7 and the axial direction of the third rotating shaft 82 are parallel to the axial direction of the support body 1, that is, the horizontal arm 2, the inclined arm 3 and the limiting block 81 can swing in the horizontal direction on the support body 1, wherein the two limiting blocks 81 are in the shape of an eight character and are respectively arranged on the two sides of the corresponding horizontal arm 2 or inclined arm 3, when the torsional spring is not stressed, the distal ends of the two limiting blocks 81 abut against the surface of the support body 1, at this time, the two limiting blocks 81 are in the maximum opening state, at this time, the included angle formed by the two limiting blocks 81 is the angle at which the horizontal arm 2 and the inclined arm 3 on the support body 1 can rotate; when the limiting block 81 is extruded by the extrusion wedge 92, the two limiting blocks 81 are simultaneously rotated inward to clamp the corresponding horizontal arm 2 or inclined arm 3, and the fixing of the horizontal arm 2 or inclined arm 3 is realized.

[0044] When the replacement of the insulator 4 is needed, the worker rotates the traction arm rod 6, so that the connecting section 62 of the traction arm rod 6 is opposite to the insertion hole 53 on the connecting frame 51, and with the rotation of the traction arm rod 6, the end of the traction arm rod 6 away from the connecting frame 51 presses the trigger slide rod 91, and the trigger slide rod 91 moves downward along the locking cavity 11 under the pressing of the traction arm rod 6, and with the downward movement of the trigger slide rod 91, the reset spring 93 contracts and accumulates elastic potential energy, and the two reverse tapering bodies of the two pressing wedges 92 on the trigger slide rod 91 press the parts of the two limiting blocks 81 in the locking cavity 11, and the two limiting blocks 81 rotate inward (i.e. toward the corresponding horizontal wrist arm 2 or inclined wrist arm 3) under the pressing of the corresponding pressing wedges 92, and the rotation of the two limiting blocks 81 clamps the corresponding horizontal wrist arm 2 or inclined wrist arm 3, so that the horizontal wrist arm 2 or inclined wrist arm 3 cannot rotate during the replacement of the insulator 4, and then the worker continues to rotate the connecting section 62, and since the connecting section 62 and the rotating section 61 are connected through threaded connection, with the rotation of the connecting section 62, the connecting section 62 and the rotating section 61 gradually separate (i.e. the length of the traction arm rod 6 gradually increases), and the connecting section 62 gradually inserts into the insertion hole 53 on the connecting frame 51, at this time, the worker continues to rotate the connecting section 62, the locking bolt in the connecting frame 51 gradually inserts into the threaded hole 64 at the end of the rotating section 61, and forms a threaded connection fixing form, at this time, the locking bolt in the connecting frame 51 and the threaded hole 64 at the end of the connecting section 62 are fixedly connected through threaded connection, and the connecting section 62 and the rotating section 61 are fixedly connected through threaded connection; at this time, the traction arm rod 6 and the connecting frame 51 have been locked, so that the traction arm rod 6 cannot continue to rotate, and the trigger slide rod 91 pressed by the traction arm rod 6 also cannot reset under the action of the reset spring 93, at this time, the horizontal wrist arm 2 and the inclined wrist arm 3 are in a locked state, which facilitates the worker to replace the insulator 4, and after the replacement of the insulator 4 is completed, the worker reversely rotates the connecting section 62, the connecting section 62 and the locking bolt in the connecting frame 51 are separated, and the connecting section 62 gradually leaves the connecting frame 51, when the connecting section 62 completely leaves the connecting frame 51, the trigger slide rod 91 moves upward with the pressing wedges 92 under the action of the reset spring 93, the pressing wedges 92 leave the limiting blocks 81, the limiting blocks 81 lose the pressing of the pressing wedges 92, and the limiting blocks 81 recover to the initial state under the action of the torsional spring, at this time, the horizontal wrist arm 2 and the inclined wrist arm 3 can rotate on the support body 1 again.

[0045] The foregoing merely describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various manners without departing from the spirit and scope of the present application. Therefore, the foregoing drawings and descriptions are illustrative in nature, and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. An overhead contact line support post comprising a post body, a horizontal arm and an inclined arm mounted on the post body, insulators mounted on the horizontal arm and the inclined arm by means of bolts, characterized in that, The intersection of the horizontal arm and the inclined arm is provided with a connecting locking mechanism, a traction arm rod is rotationally installed on the support body, and the connecting locking mechanism can lock the traction arm rod when the end of the traction arm rod is inserted into the connecting locking mechanism, and the horizontal arm and the inclined arm are both inclined on the support body through the traction arm rod.

2. The catenary pillar according to claim 1, characterized in that The traction arm rod comprises a separable rotating section and a connecting section, the rotating section is rotationally connected with the support body through a first rotating shaft, a thread is arranged on the end of the rotating section away from the support body, the connecting section is sleeved on the outside of the rotating section, and the connecting section is threadedly connected with the rotating section.

3. The catenary pole according to claim 2, characterized in that The connecting locking mechanism comprises a connecting frame and a locking part arranged in the connecting frame, the horizontal arm and the inclined arm both pass through the connecting frame, an insertion hole for inserting the traction arm rod is arranged on the connecting frame, the connecting section is inserted into the insertion hole, and the locking part locks the connecting section by screwing the connecting section.

4. The catenary pole according to claim 3, characterized in that The locking part comprises a locking bolt coaxially arranged with the insertion hole, a threaded hole matched with the locking bolt is arranged on the end of the connecting section away from the rotating section, and the locking bolt is screwed into the threaded hole to fix the connecting section when the connecting section is rotated.

5. The catenary post according to claim 1, characterized in that A placing groove for placing the traction arm rod is arranged on the support body.

6. The catenary post according to claim 5, characterized in that The horizontal arm and the inclined arm are both rotationally installed on the support body through a second rotating shaft, the axial direction of the second rotating shaft is parallel to the axial direction of the support body, the support body is provided with two groups of limiting parts corresponding to the horizontal arm and the inclined arm.

7. The catenary post according to claim 6, characterized in that A locking cavity is also arranged on the support body, the locking cavity is communicated with the top of the placing groove, the limiting part comprises two limiting blocks, the limiting blocks are rotationally installed on the support body through a third rotating shaft, the third rotating shaft is connected with the support body through a torsional spring, the third rotating shaft divides the limiting blocks into two parts, one part is located on the two sides of the corresponding horizontal arm or inclined arm and is used for limiting the rotation angle of the corresponding horizontal arm or inclined arm, and the other part extends into the locking cavity.

8. The catenary post according to claim 7, characterized in that The limiting blocks are rotationally installed on the support body, the support body is also provided with an adjusting mechanism, the adjusting mechanism adjusts two limiting blocks to clamp the corresponding horizontal arm or inclined arm based on the rotation of the traction arm rod, and the horizontal arm and the inclined arm are limited to rotate.

9. The catenary post according to claim 8, characterized in that The adjusting mechanism comprises a trigger slide rod slidingly installed in the locking cavity in the vertical direction, a return spring is connected between the trigger slide rod and the support body, two extrusion wedges are arranged on the trigger slide rod and are arranged in the vertical direction in a spaced manner, and the two extrusion wedges are in one-to-one correspondence with the two groups of limiting parts.

10. The catenary post according to claim 9, characterized in that The extrusion wedges are inverted tapered, the inverted tapered extrusion wedges extrude the corresponding two limiting blocks based on the downward movement of the trigger slide rod, and the two limiting blocks are gradually closed and clamp the corresponding horizontal arm or inclined arm based on the inclined surface of the inverted tapered extrusion wedges.

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