Labor-saving support for mounting bracket arm of overhead line bridge stand

Abstract

The application discloses a labor-saving support for a H-shaped bridge column installation arm, and relates to the technical field of bridge column arm installation. The labor-saving support for the H-shaped bridge column installation arm comprises an I-shaped steel, a support body is arranged in the I-shaped steel, support arm supporting assemblies are arranged on the two sides of the front surface of the support body, and an eccentric shaft locking assembly is arranged on the back surface of the support body. The support arm supporting assemblies and the eccentric shaft locking assembly are arranged to lock the support body on the inner side of the I-shaped steel during use, thereby positioning the support arm body according to the installation height of the support arm body and supporting the support arm body. During use, one operator can complete the positioning and welding operation of the support arm body, and two operators are not needed, so that the construction operation is safer and simpler, and subsequent installation and welding operations are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of bracket arm mounting for bridge frame upright columns, and specifically relates to a labor-saving support for mounting bracket arms on a H-shaped bridge frame upright column. Background Art

[0002] Mounting bracket arms on bridge frame upright columns is a task in electrical construction engineering. The upright columns are generally made of I-steel or channel steel, and the bracket arms can be finished products manufactured by production plants or fabricated on site. On-site fabrication generally uses angle steel, I-steel or channel steel. The bracket arms are usually installed on the two outer planes of the I-steel or channel steel, which can be single-sided or double-sided, and a plurality of bracket arms are arranged up and down on each side surface. The construction process is as follows: firstly, mark elevation lines on the upright column based on the designed elevation in the drawing, generally taking the upper plane of the bracket arm as the reference. Since there are multiple bracket arms on each upright column, the positions of the multiple bracket arms can be determined and marked on the upright column in advance. Take a bracket arm, align the inner point of its upper plane with the marking point on the outer side of the upright column, temporarily fix one point first, then use tools such as a level gauge to measure and adjust the bracket arm to ensure it is perfectly horizontal and vertical, and finally perform fixed welding. After that, repeat the above operation steps to complete the welding of all bracket arms on this upright column, and finally carry out slag removal, rust removal and anti-corrosion work on all welded parts, so that the installation of the bracket arms on one upright column is completed.

[0003] However, in general electrical installation works, there may be hundreds or thousands of upright columns that need to be installed with bracket arms, resulting in a very large workload. Moreover, the bracket arms are relatively long, so two people are required to cooperate to move them. In addition, the upright columns are generally very high, and the installation positions of the bracket arms are also generally very high, making the construction operation more dangerous and arduous, and inconvenient for the installation and welding operation of the bracket arms. Therefore, a labor-saving support for mounting bracket arms on a H-shaped bridge frame upright column is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a labor-saving support for mounting bracket arms on a H-shaped bridge frame upright column, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: a labor-saving support for mounting bracket arms on a H-shaped bridge frame upright column, comprising an I-steel, bracket arm bodies are fixedly installed on both sides of the I-steel, a support main body is arranged inside the I-steel, bracket arm support assemblies are arranged on both sides of the front surface of the support main body, and an eccentric shaft locking assembly is arranged on the back surface of the support main body.

[0006] The bracket arm support assembly comprises a limit strip fixedly installed on one side of the support main body, and a bracket arm support leg is arranged on one side of the limit strip.

[0007] The eccentric shaft locking assembly includes a rotating rod inserted into the bracket body. One end of the rotating rod passes through the bracket body and extends to the outside of the bracket body. An eccentric wheel is fixedly installed at one end of the rotating rod. A clamping block is provided on one side of the eccentric wheel. One side of the clamping block is in contact with one side of the inner wall of the I-beam. The eccentric shaft locking assembly facilitates the fixing of the bracket body to the inside of the I-beam during use. It also facilitates the connection and sliding between the two during use. It allows for quick adjustment of the position of the bracket body during installation and maintains the support stability during the installation and welding of the support arm body.

[0008] Preferably, the main body of the bracket is L-shaped, and one side of the main body of the bracket is attached to one side of the inner wall of the I-beam.

[0009] The L-shaped bracket body facilitates positioning and installation during use, and also makes subsequent use easier.

[0010] Preferably, a through groove is provided on one side of the limiting strip, a screw is slidably connected inside the through groove, the surface of the screw is slidably connected to the inner wall of the through groove, one end of the screw is fixedly connected to one side of the support arm foot, and a nut is threaded onto the surface of the screw. A pointer is fixedly installed on the support arm foot, and a scale is embedded on one side of the limiting strip.

[0011] With the addition of the support arm and eccentric shaft locking components, the main body of the bracket can be locked inside the I-beam during use, thereby positioning it according to the installation height of the support arm and providing support for the support arm. During use, only one operator is needed to complete the positioning and welding of the support arm, eliminating the need for two people to work together, making the construction operation safer and simpler, and facilitating subsequent installation and welding operations.

[0012] Preferably, the surface of the screw is covered with an anti-slip pad, one side of the anti-slip pad is attached to one side of the limiting strip, the other side of the anti-slip pad is attached to one side of the nut, one side of the support arm foot is slidably connected to one side of the limiting strip, and the thickness of one side of the support arm foot is 1.5 times the width of the through groove.

[0013] By using the screws and nuts, the position of the support legs can be adjusted according to the welding spacing between multiple support arm bodies during use. After loosening the nuts, the height of the corresponding support leg can be moved. The height can be adjusted by corresponding pointers and scales. After tightening the nuts, the height of the support leg can be adjusted and positioned, which facilitates the subsequent adjustment of the installation spacing.

[0014] Preferably, the support arm foot is provided with a limiting groove, the bottom reinforcing rib of the support arm body is located inside the limiting groove, the bottom of the support arm body is in contact with the upper surface of the support arm foot, and a level is provided above one of the support arm bodies.

[0015] By setting limit grooves on the support arms, the support arms can support both sides of the bottom of the support arm body during use, thereby preventing the support arm body from shaking during welding and installation and maintaining the installation stability of the component. At the same time, the level indicator can be set to detect the installation level of the support arm body.

[0016] Preferably, a handle is fixedly installed at one end of the rotating rod. The handle is set in an inclined state, and the inner angle between the handle and the rotating rod is 100-130 degrees. An anti-slip sleeve is fitted on the surface of the handle, and the surface of the anti-slip sleeve has anti-slip texture. The inner wall of the anti-slip sleeve is fixedly connected to the surface of the handle.

[0017] The handle makes it easy to rotate the lever during use, while the anti-slip sleeve increases the grip between the hand and the handle.

[0018] Preferably, a limiting ring is fixedly installed on the surface of the rotating rod, one side of the limiting ring is in contact with one side of the bracket body, and the limiting ring is rotatably connected to one side of the bracket body. The bracket body has a rod hole for the rotating rod to rotate, and the inner wall of the rod hole is rotatably connected to the surface of the rotating rod.

[0019] By setting a limit ring, the eccentric wheel on the rotating rod can be limited during use to prevent the position of the eccentric wheel from changing and keep it on the same plane as the clamping block.

[0020] Preferably, the inside of the support body is provided with a sliding groove, and a sliding block is slidably connected inside the sliding groove. One side of the sliding block passes through the support body and extends to the outside of the support body and is fixedly connected to one side of the clamping block. One side of the clamping block is slidably connected to one side of the support body.

[0021] By setting up the sliding block, the clamping block can be conveniently limited, while maintaining the clamping block's linear movement on the back of the bracket body.

[0022] Preferably, a return spring is fixedly installed on one side of the inner wall of the sliding groove on the main body of the bracket, and one end of the return spring is fixedly connected to one side of the sliding block.

[0023] With the reset spring in place, after the eccentric wheel releases pressure on one side of the clamping block, the reset spring can reset the clamping block on the sliding block, thereby separating one side of the clamping block from the inner side of the I-beam, which facilitates the subsequent movement of the main body of the support.

[0024] Preferably, a cavity is opened on one side of the bracket main body, a buffer sheet is fixedly installed on one side of the inner wall of the cavity, a buffer plate is fixedly installed on one side of the buffer sheet, an extrusion plate is fixedly installed on one side of the buffer plate, one side of the extrusion plate penetrates through the bracket main body and extends to the outside of the bracket main body to fit with one side of the inner wall of the I-steel, an anti-slip rubber plate is fixedly installed on one side of the bracket main body and between the two sets of extrusion plates, and anti-slip patterns are opened on one side of the anti-slip rubber plate.

[0025] Through the arranged buffer sheet, the extrusion plate on the buffer plate can be reset, so that the friction force between the I-steel and the bracket main body can be increased, and the separation of the bracket main body and the I-steel during the fixing process can be avoided.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] (1) This labor-saving bracket for installing the bracket arm of the I-shaped bridge frame upright post can lock the bracket main body on the inner side of the I-steel during use through the arranged bracket arm support assembly and eccentric shaft locking assembly, so as to position the bracket arm main body according to its installation height, and can support the bracket arm main body at the same time. During the use process, only one operator can complete the positioning and welding operations of the bracket arm main body, no need for two people to cooperate, making the construction operation safer and simpler, and facilitating the subsequent installation and welding operations.

[0028] (2) For this labor-saving bracket for installing the bracket arm of the I-shaped bridge frame upright post, through the arranged screw and nut, the position of the bracket arm leg can be adjusted according to the welding spacing between multiple sets of bracket arm main bodies during use. After loosening the nut, the height of the corresponding bracket arm leg can be moved, and its height can be adjusted corresponding to the pointer and the scale, then the nut is tightened to adjust and position the height of the bracket arm leg, so as to facilitate the subsequent adjustment operation of the installation spacing.

[0029] (3) This labor-saving bracket for installing the bracket arm of the I-shaped bridge frame upright post, through the arranged eccentric shaft locking assembly, is convenient to fix the bracket main body on the inner side of the I-steel during use, and is also convenient for connection and sliding between the two during use, which facilitates quick position adjustment of the bracket main body during the installation process, and also maintains the support stability during the installation and welding process of the bracket arm main body. Brief Description of the Drawings

[0030] Figure 1 is a schematic diagram of a three-dimensional sectional structure of the present invention;

[0031] Figure 2 is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 3 is the present invention Figure 1 schematic diagram of the enlarged structure at position A;

[0033] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B;

[0034] Figure 5 For the present invention Figure 2 Enlarged schematic diagram of the structure at point C;

[0035] Figure 6 This is a three-dimensional structural diagram of the main body of the support of the present invention;

[0036] Figure 7 This is a three-dimensional cross-sectional view of the main body of the support structure of the present invention.

[0037] In the diagram: 1. I-beam; 2. Support arm body; 3. Bracket body; 4. Support arm support assembly; 400. Limiting strip; 401. Support arm foot; 402. Screw; 403. Nut; 404. Pointer; 405. Ruler; 406. Anti-slip pad; 407. Level; 5. Eccentric shaft locking assembly; 500. Rotating rod; 501. Eccentric wheel; 502. Clamping block; 503. Handle; 504. Limiting ring; 505. Sliding block; 506. Return spring; 507. Buffer plate; 508. Buffer plate; 509. Extrusion plate; 510. Anti-slip rubber plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-7 The present invention provides a technical solution: a labor-saving bracket for installing brackets on the Feng-shaped cable tray column, including an I-beam 1, bracket bodies 2 fixedly installed on both sides of the I-beam 1, a bracket body 3 is provided inside the I-beam 1, bracket support components 4 are provided on both sides of the front surface of the bracket body 3, and an eccentric shaft locking component 5 is provided on the back of the bracket body 3.

[0040] The support arm assembly 4 includes a limiting strip 400 fixedly installed on one side of the bracket body 3, and a support arm foot 401 is provided on one side of the limiting strip 400.

[0041] The eccentric shaft locking assembly 5 includes a rotating rod 500 inserted into the bracket body 3. One end of the rotating rod 500 passes through the bracket body 3 and extends to the outside of the bracket body 3. An eccentric wheel 501 is fixedly installed at one end of the rotating rod 500. A clamping block 502 is provided on one side of the eccentric wheel 501. One side of the clamping block 502 is in contact with one side of the inner wall of the I-beam 1. One side of the eccentric wheel 501 is in contact with one side of the clamping block 502. The eccentric shaft locking assembly 5 facilitates fixing the bracket body 3 to the inside of the I-beam 1 during use. It also facilitates the connection and sliding between the two during use. It facilitates quick adjustment of the position of the bracket body 3 during installation and maintains the support stability during the installation and welding process of the support arm body 2.

[0042] Please see Figure 2 The main body of the bracket 3 is L-shaped, and one side of the main body of the bracket 3 is attached to one side of the inner wall of the I-beam 1. The L-shaped design of the main body of the bracket 3 facilitates positioning and installation during use, and also facilitates subsequent use.

[0043] Please see Figure 4 A through groove is provided on one side of the limiting strip 400, and a screw 402 is slidably connected inside the through groove. The surface of the screw 402 is slidably connected to the inner wall of the through groove. One end of the screw 402 is fixedly connected to one side of the support arm foot 401, and a nut 403 is threadedly connected to the surface of the screw 402. A pointer 404 is fixedly installed on the support arm foot 401. A scale 405 is embedded on one side of the limiting strip 400. The supporting arm support assembly 4 and the eccentric shaft locking assembly 5 can lock the bracket body 3 inside the I-beam 1 during use, thereby positioning it according to the installation height of the support arm body 2. At the same time, it can support the support arm body 2. During use, only one operator is needed to complete the positioning and welding operation of the support arm body 2, without the need for two people to work together, making the construction operation safer and simpler, and facilitating subsequent installation and welding operations.

[0044] Please see Figure 4 The screw 402 is fitted with an anti-slip pad 406. One side of the anti-slip pad 406 is in contact with one side of the limiting strip 400, and the other side of the anti-slip pad 406 is in contact with one side of the nut 403. One side of the support arm foot 401 is slidably connected to one side of the limiting strip 400, and the thickness of one side of the support arm foot 401 is 1.5 times the width of the through groove. During use, the screw 402 and nut 403 can be used to adjust the position of the support arm foot 401 according to the welding spacing between multiple sets of support arm bodies 2. After loosening the nut 403, the height of the corresponding support arm foot 401 can be moved. The height can be adjusted according to the pointer 404 and the scale 405. After tightening the nut 403, the height of the support arm foot 401 can be adjusted and positioned, which facilitates the subsequent adjustment of the installation spacing.

[0045] Please see Figure 2 The support arm foot 401 has a limiting groove, and the bottom reinforcing rib of the support arm body 2 is located inside the limiting groove. The bottom of the support arm body 2 is in contact with the upper surface of the support arm foot 401. A level 407 is set above one of the support arm bodies 2. The support arm foot 401 has a limiting groove, which allows the support arm foot 401 to support the two sides of the bottom of the support arm body 2 during use, thereby preventing the support arm body 2 from shaking during welding and installation and maintaining the installation stability of the component. At the same time, the level 407 can detect the installation level of the support arm body 2.

[0046] Please see Figure 4 A handle 503 is fixedly installed at one end of the rotating rod 500. The handle 503 is set in an inclined state, and the inner angle between the handle 503 and the rotating rod 500 is 100-130 degrees. The surface of the handle 503 is covered with an anti-slip sleeve with anti-slip texture. The inner wall of the anti-slip sleeve is fixedly connected to the surface of the handle 503. The handle 503 facilitates the rotation of the rotating rod 500 during use, and the anti-slip sleeve increases the anti-slip properties between the hand and the handle 503.

[0047] Please see Figure 3 A limiting ring 504 is fixedly installed on the surface of the rotating rod 500. One side of the limiting ring 504 is in contact with one side of the bracket body 3, and the limiting ring 504 is rotatably connected to one side of the bracket body 3. The bracket body 3 has a rod hole for the rotating rod 500 to rotate. The inner wall of the rod hole is rotatably connected to the surface of the rotating rod 500. The limiting ring 504 can limit the eccentric wheel 501 on the rotating rod 500 during use, so as to prevent the position of the eccentric wheel 501 from changing and keep it on the same plane as the clamping block 502.

[0048] Please see Figure 3 The bracket body 3 has a sliding groove inside, and a sliding block 505 is slidably connected inside the sliding groove. One side of the sliding block 505 passes through the bracket body 3 and extends to the outside of the bracket body 3 and is fixedly connected to one side of the clamping block 502. One side of the clamping block 502 is slidably connected to one side of the bracket body 3. The setting of the sliding block 505 achieves the effect of conveniently limiting the clamping block 502, and at the same time can keep the clamping block 502 moving linearly on the back of the bracket body 3.

[0049] Please see Figure 3A return spring 506 is fixedly installed on one side of the inner wall of the sliding groove on the main body 3 of the bracket. One end of the return spring 506 is fixedly connected to one side of the sliding block 505. After the eccentric wheel 501 releases the pressure on one side of the clamping block 502, the return spring 506 can reset the clamping block 502 on the sliding block 505, thereby separating one side of the clamping block 502 from the inner side of the I-beam 1, which facilitates the subsequent movement of the main body 3 of the bracket.

[0050] Please see Figures 6-7 A cavity is provided on one side of the support body 3. A buffer plate 507 is fixedly installed on one side of the inner wall of the cavity. A buffer plate 508 is fixedly installed on one side of the buffer plate 507. A compression plate 509 is fixedly installed on one side of the buffer plate 508. One side of the compression plate 509 penetrates the support body 3 and extends to the outside of the support body 3 to fit against one side of the inner wall of the I-beam 1. An anti-slip rubber plate 510 is fixedly installed on one side of the support body 3 and between the two sets of compression plates 509. An anti-slip texture is provided on one side of the anti-slip rubber plate 510. The buffer plate 507 can reset the compression plate 509 on the buffer plate 508, thereby increasing the friction between the I-beam 1 and the support body 3 and preventing the support body 3 from separating from the I-beam 1 during the fixing process.

[0051] Working principle: In use, first mark the elevation position of the support arm body 2 on the I-beam 1 column. Generally, the elevation point on the plane of the uppermost support arm body 2 is preferred. Place the bracket body 3 in the groove and slide it up and down to the correct position, that is, the support arm support foot 401 on the bracket body 3 corresponding to the marked position on the I-beam 1 column coincides with the marked point on the I-beam 1 column. Then rotate the rotating rod 500, so that the rotating rod 500 drives the eccentric wheel 501 to squeeze one side of the clamping block 502, thereby making the bracket body 3 firmly tightened in the correct position. Remove the support arm body 2. One arm body 2 is installed by attaching its inner side to the outer surface of the I-beam 1 column. The upper edge of the body 2 rests on the support leg 401. Using the elevation point of the support leg 401 as a reference point and with the help of tools such as a level 407, the horizontal position and other positions of the support body 2 are adjusted. After adjustment, it is made to be horizontal and vertical. Then it is welded and fixed. The installation of one support body 2 is completed. Then the bracket body 3 can be removed. Then, the slag removal, rust prevention and corrosion prevention treatment are carried out uniformly. After the installation of the support body 2 on one I-beam 1 column is completed, the installation of the support body 2 on the next I-beam 1 column can be carried out.

[0052] When it is necessary to adjust the installation spacing between the support arm bodies 2, after loosening the nut 403, the height of the corresponding support arm foot 401 can be moved. The height can be adjusted by corresponding pointer 404 and scale 405. After tightening the nut 403, the height of the support arm foot 401 can be adjusted and positioned, which facilitates the subsequent adjustment of the installation spacing.

[0053] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0054] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A labor-saving bracket for mounting a bracket arm on a I-shaped bridge support column, comprising an I-shaped steel (1), wherein a bracket arm body (2) is fixedly mounted on each of two sides of the I-shaped steel (1), characterized in that: The I-beam (1) is provided with a support body (3) inside. Both sides of the front surface of the support body (3) are provided with support arm components (4), and the back of the support body (3) is provided with an eccentric shaft locking component (5). The arm support assembly (4) includes a limiting strip (400) fixedly installed on one side of the bracket body (3), and an arm support foot (401) is provided on one side of the limiting strip (400). The eccentric shaft locking assembly (5) includes a rotating rod (500) inserted into the bracket body (3). One end of the rotating rod (500) passes through the bracket body (3) and extends to the outside of the bracket body (3). An eccentric wheel (501) is fixedly installed at one end of the rotating rod (500). A clamping block (502) is provided on one side of the eccentric wheel (501). One side of the clamping block (502) is in contact with one side of the inner wall of the I-beam (1). One side of the eccentric wheel (501) is in contact with one side of the clamping block (502).

2. The labor-saving bracket for installing the bracket arm of the Feng-shaped cable tray column according to claim 1, characterized in that: The main body (3) of the bracket is L-shaped, and one side of the main body (3) is attached to one side of the inner wall of the I-beam (1).

3. The labor-saving support for mounting the bracket of the H-shaped bridge stand column according to claim 1, characterized in that: A through groove is provided on one side of the limiting strip (400), and a screw (402) is slidably connected inside the through groove. The surface of the screw (402) is slidably connected to the inner wall of the through groove. One end of the screw (402) is fixedly connected to one side of the support arm foot (401), and a nut (403) is threadedly connected to the surface of the screw (402). A pointer (404) is fixedly installed on the support arm foot (401), and a scale (405) is embedded on one side of the limiting strip (400).

4. The labor-saving bracket for installing the bracket arm of the Feng-shaped cable tray column according to claim 3, characterized in that: The surface of the screw (402) is covered with an anti-slip pad (406). One side of the anti-slip pad (406) is in contact with one side of the limiting strip (400), and the other side of the anti-slip pad (406) is in contact with one side of the nut (403). One side of the support arm foot (401) is slidably connected to one side of the limiting strip (400), and the thickness of one side of the support arm foot (401) is 1.5 times the width of the through groove. The labor-saving bracket for mounting the cantilever of the I-shaped bridge frame column according to claim 1, characterized in that: The support arm foot (401) has a limiting groove, the bottom reinforcing rib of the support arm body (2) is located inside the limiting groove, the bottom of the support arm body (2) is in contact with the upper surface of the support arm foot (401), and a level (407) is provided above one of the support arm bodies (2).

6. The labor-saving bracket for installing the bracket arm of the Feng-shaped cable tray column according to claim 1, characterized in that: A handle (503) is fixedly installed at one end of the rotating rod (500). The handle (503) is set in an inclined state, and the inner angle between the handle (503) and the rotating rod (500) is 100-130 degrees. An anti-slip sleeve is fitted on the surface of the handle (503), and anti-slip texture is opened on the surface of the anti-slip sleeve. The inner wall of the anti-slip sleeve is fixedly connected to the surface of the handle (503).

7. The labor-saving bracket for installing the bracket arm of the Feng-shaped cable tray column according to claim 1, characterized in that: A limiting ring (504) is fixedly installed on the surface of the rotating rod (500). One side of the limiting ring (504) is in contact with one side of the bracket body (3), and the limiting ring (504) is rotatably connected to one side of the bracket body (3). A rod hole for the rotating rod (500) to rotate is opened on the bracket body (3), and the inner wall of the rod hole is rotatably connected to the surface of the rotating rod (500).

8. The labor-saving bracket for installing the bracket arm of the Feng-shaped cable tray column according to claim 1, characterized in that: The bracket body (3) has a sliding groove inside, and a sliding block (505) is slidably connected inside the sliding groove. One side of the sliding block (505) passes through the bracket body (3) and extends to the outside of the bracket body (3) and is fixedly connected to one side of the clamping block (502). One side of the clamping block (502) is slidably connected to one side of the bracket body (3).

9. The labor-saving bracket for installing the bracket arm of the Feng-shaped cable tray column according to claim 1, characterized in that: A reset spring (506) is fixedly installed on one side of the inner wall of the sliding groove on the main body (3) of the bracket, and one end of the reset spring (506) is fixedly connected to one side of the sliding block (505).

10. The labor-saving bracket for mounting the arm of a I-shaped bridge stand column according to claim 1, characterized in that: A cavity is provided on one side of the main body of the support (3). A buffer plate (507) is fixedly installed on one side of the inner wall of the cavity. A buffer plate (508) is fixedly installed on one side of the buffer plate (507). An extrusion plate (509) is fixedly installed on one side of the buffer plate (508). One side of the extrusion plate (509) penetrates the main body of the support (3) and extends to the outside of the main body of the support (3) to fit against one side of the inner wall of the I-beam (1). An anti-slip rubber plate (510) is fixedly installed on one side of the main body of the support (3) and between the two sets of extrusion plates (509). An anti-slip texture is provided on one side of the anti-slip rubber plate (510).

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