Auxiliary tool for welding pipeline and flange

Abstract

The utility model discloses an auxiliary tool for welding a pipeline and a flange. The technical problems that the supporting position of an existing welding auxiliary tool is inconvenient to adjust, and the welding quality is easily reduced due to the fact that the supporting position is not adjusted in place are solved. The sliding rail comprises a sliding rail and at least two supporting frames connected to the sliding rail in a sliding mode, each supporting frame is connected with a roller, the axis of the roller is parallel to the sliding rail, and arc lines formed by connecting fulcrums of the rollers on the supporting frames are the same. The auxiliary tool is made of materials on a construction site, material taking is convenient, the structure is simple, and turnover is convenient; through sliding of the supporting frame and the fireproof plate, welding of pipelines of various lengths and the flange can be achieved; the rollers are connected with the arc-shaped plates in an inserted or clamped mode, connecting lines of fulcrums of the rollers on the supporting frames are the same, supporting positions can be adjusted conveniently, the supporting positions at the two ends of a pipeline are consistent, pipeline inclination is avoided, and the welding quality of the pipeline and a flange is improved. And the safety and the convenience of welding are improved by additionally arranging the fireproof plate and the storage plate.

Description

Technical Field

[0001] The utility model relates to the technical field of flange installation equipment, in particular to an auxiliary tool for welding a pipeline and a flange. Background Art

[0002] Flanges are parts that connect pipes to each other. When in use, it is necessary to first connect the two flanges to the ends of the two pipes respectively, and then connect the two flanges by passing bolts through the flange holes, thereby connecting the two pipes. Pipes and flanges are generally connected by welding. During welding, the welder first welds the pipe and flange parts by spot welding, and then welds all the joints between the pipe and the flange. However, overhead welding will occur at the bottom of the joint between the pipe and the flange on the outside and the top of the joint between the pipe and the flange on the inside. During overhead welding, the melted liquid metal solution will drip, etc., which is not only inconvenient to operate, but also the welding quality cannot be guaranteed. In addition, the existing devices for welding pipes and flanges are generally large in size and weight, have poor adaptability at the construction site, and are not convenient to use and operate.

[0003] Therefore, a Chinese utility model patent with an authorization announcement date of January 21, 2022 and authorization announcement number CN 215588338 U discloses a pipe flange welding auxiliary tool, comprising at least two support mechanisms disposed on the underside of the pipe, each support mechanism comprising a base, on which a bilaterally symmetrical scale is provided, and two left and right support frames are provided on the base, each support frame having a support shaft at its upper end, a support bearing mounted on the support shaft, and a mounting plate at its lower end, connected to the base via locking bolts. The above-mentioned tool enables welders to adjust the position of the pipe and flange when welding flanges, perform welding operations in a suitable working posture, and ensure welding quality.

[0004] When welding flanges of different diameters, the locking bolts of the two sets of support mechanisms need to be loosened, and the mounting plates need to be adjusted to the appropriate position according to the scale lines on the base. During adjustment, the distance from the mounting plates at the lower ends of the two sets of support frames to the scale line 0 should remain the same, and finally the locking bolts need to be tightened. The steps for adjusting the position of the mounting plates are cumbersome and difficult to operate. Moreover, under long-term use conditions, the moving mounting plates will cause wear on the scale lines on the base, making it difficult to ensure that the distance between the support bearings on the two sets of support frames remains consistent. This will cause the support positions at both ends of the pipe to be different, causing the two ends of the pipe to be not on the same horizontal line, reducing the welding quality, and further causing difficulties in connecting the two flanges. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes an auxiliary tool for welding pipes and flanges, which solves the technical problems of existing welding auxiliary tools that the support position is inconvenient to adjust and the welding quality is easily reduced due to improper support position adjustment.

[0006] The technical solution of this application is:

[0007] An auxiliary tool for welding pipes and flanges, comprising a slide rail and at least two support frames slidably connected to the slide rail, each support frame being connected to a plurality of rollers, the axis of the rollers being parallel to the axis of the pipe, and the connecting lines formed by the supporting points of contact between the rollers on each support frame and the pipe being the same and located at the same horizontal height.

[0008] Preferably, the support frame includes two arc-shaped plates arranged at intervals, each arc-shaped plate is provided with a plurality of mounting holes arranged along an arc line, and the roller is connected to the arc-shaped plates via positioning pins and the mounting holes.

[0009] Preferably, two support frames are connected to the slide rail, and fire baffles are provided on opposite sides of the arc-shaped plates of the two support frames, and the fire baffles and the arc-shaped plates are both slidably connected to the slide rail.

[0010] Preferably, the fire baffle and the arc plate are both connected to the slide rail via a connecting assembly, the connecting assembly comprising a linear guide rail, a moving part of the linear guide rail is connected to the fire baffle, and a fixed part of the linear guide rail is connected to the arc plate.

[0011] Preferably, the moving part of the linear guide rail is connected to the fire baffle through a storage plate, the side of the storage plate close to the curved plate is connected to the bottom of the fire baffle, and the other side of the storage plate away from the curved plate is connected to the top of the fire baffle through a reinforcing diagonal rod.

[0012] Preferably, the connecting assembly further comprises a pulley connected to a fixed component of the linear guide rail, and the pulley is adapted to the guide rail.

[0013] Preferably, the pulley is in the shape of a rotating body, a V-shaped ring groove is provided on the rotating surface of the rotating body, and the slide rail includes an angle steel and a channel steel connected up and down, and the angle steel is connected to the V-shaped ring groove of the pulley.

[0014] Preferably, the connecting assembly further comprises a groove structure with an opening facing downward, and the pulley is rotatably connected between two side walls of the groove structure.

[0015] Preferably, the groove structure includes a connected angle steel 2 and a pulley baffle, the top surface of the angle steel 2 is connected to the fixed component of the linear guide rail, and the two ends of the pulley are rotatably connected to the side surface of the angle steel 2 and the pulley baffle respectively.

[0016] Preferably, the support frame further comprises angle steel three, the top surface of angle steel three is vertically connected to the arc plate, and the side surface of angle steel three is connected to the fixed component of the linear guide rail and / or angle steel two and / or the pulley baffle.

[0017] Compared with the prior art, the technical solution disclosed in this utility model has the following beneficial effects:

[0018] The utility model is made of common materials on the construction site, which is not only easy to obtain materials, but also has a simple structure, light weight, and is easy to use. By slidingly connecting the support frame with the slide rail and the fire baffle with the linear guide rail, rollers with various intervals are inserted on the arc plate, so that pipes of various lengths and various diameters can be welded to the flange. The pipes and flanges are rotated on the rollers to avoid overhead welding. The rollers are connected to the arc plate by snapping or plugging. The arcs formed by the fulcrums of the rollers on each support frame are the same. While facilitating the adjustment of the support position, the support positions at both ends of the pipe are guaranteed to be consistent, avoiding the two ends of the pipe being not on the same horizontal line, and further improving the welding quality of the pipe and the flange. The fire baffle and the storage plate are provided to improve the safety and convenience of the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is the main view of the utility model;

[0021] Figure 2 It is a top view of the utility model;

[0022] Figure 3 It is a half-section view of the utility model;

[0023] Figure 4 yes Figure 3 A magnified view of the connected components;

[0024] Figure 5 yes Figure 1 An enlarged view of the connection between the middle support frame and the slide rail;

[0025] Figure 6 yes Figure 1 Enlarged view of the middle slide rail;

[0026] Figure 7 It is a three-dimensional diagram of the support frame and the slide rail from the first perspective;

[0027] Figure 8 It is a stereoscopic diagram of the support frame and the slide rail from a second perspective.

[0028] Description of Figure Numbers:

[0029] 1 slide rail, 1-1 ear plate, 1-2 channel steel, 1-3 angle steel one, 2 support frame, 2-1 curved plate, 2-2 roller, 2-3 fire baffle, 2-4 connecting assembly, 2-4-1 angle steel two, 2-4-2 pulley, 2-4-3 pulley baffle, 2-4-4 linear guide rail, 2-5 mounting hole, 2-6 angle steel three, 2-7 reinforcement diagonal rod, 2-8 storage board. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1, an auxiliary tool for welding pipes and flanges, including a slide rail 1 and at least two support frames 2 slidably connected to the slide rail 1, each support frame 2 is connected to a plurality of rollers 2-2, the axis of the roller 2-2 is parallel to the axis of the pipe, and the connecting lines formed by the fulcrums of each roller 2-2 on each support frame 2 and the contact with the pipe are the same and are located at the same horizontal height.

[0032] The two rollers 2-2 are symmetrically arranged on the two support frames 2, and the two arcs formed by the fulcrums of the two sets of rollers 2-2 are the same, which ensures that the support positions of the two ends of the pipeline are always consistent, avoids the two ends of the pipeline being not on the same horizontal line, and further improves the welding quality of the pipeline and the flange. Furthermore, the position of the groove where the roller 2-2 is located can be adjusted to accommodate support for pipes of various diameters, or the rollers 2-2 of different sizes can be replaced to accommodate support for pipes of various diameters.

[0033] Example 2, based on Example 1, an auxiliary tool for welding pipes and flanges, such as Figure 3As shown, the support frame 2 includes two spaced-apart arcuate plates 2-1, each of which is provided with a plurality of mounting holes 2-5 arranged along an arc line. The roller 2-2 is connected to the arcuate plates 2-1 via a locating pin and the mounting holes 2-5. When installing the roller 2-2, the roller 2-2 is first placed in the gap between the two arcuate plates 2-1. The center of the roller 2-2 is provided with a through hole. The through hole is aligned with the mounting hole 2-5, and then the locating pin is inserted to achieve a rotational connection between the roller 2-2 and the arcuate plate 2-1. When welding pipes and flanges of different diameters, the installation position of the roller 2-2 on the arcuate plate 2-1 can be adjusted. When adjusting the installation position of the roller 2-2, the locating pin is pulled out, and the roller 2-2 is aligned with the other symmetrical mounting holes 2-5 on the arcuate plate 2-1, and the locating pin is then inserted.

[0034] Example 3, based on Example 2, an auxiliary tool for welding pipes and flanges, such as Figure 1 、 Figure 2 、 Figure 7 and Figure 8 As shown, the slide rail 1 is connected to two support frames 2. Fire dampers 2-3 are provided on opposite sides of the curved plates 2-1 of the two support frames 2. The fire dampers 2-3 and the curved plates 2-1 are both slidably connected to the slide rail 1. Specifically, the pipe is rotatably connected to the curved plates 2-1 of the two support frames 2, and the end of the pipe is located between the curved plates 2-1 and the fire dampers 2-3. When welding the pipe and the flange, the fire dampers 2-3 can be used to block welding sparks, prevent sparks from splashing, and improve welding safety. The fire dampers 2-3 and the curved plates 2-1 are both slidably connected to the top of the slide rail 1. The distance between the fire dampers 2-3 and the curved plates 2-1 can be adjusted according to the length of the welded pipe. Push rods for gripping are welded to the four corners of the fire damper 2-3 to facilitate pushing or pulling the fire damper 2-3.

[0035] Example 4, based on Example 3, an auxiliary tool for welding pipes and flanges, such as Figure 4 and Figure 5 As shown, the fire baffle 2-3 and the arc plate 2-1 are connected to the slide rail 1 through a connecting component 2-4. The connecting component 2-4 includes a linear guide rail 2-4-4. The moving part of the linear guide rail 2-4-4 is connected to the fire baffle 2-3, and the fixed part of the linear guide rail 2-4-4 is connected to the arc plate 2-1.

[0036] The linear guide 2-4-4 in this embodiment can be a single-axis guide or a square ball linear guide. It has two moving components: moving component one connected to the fire baffle 2-3, and moving component two connected to the curved plate 2-1. The fire baffle 2-3 is slidably connected to the fixed component of the linear guide 2-4-4 via moving component one, while the curved plate 2-1 is slidably connected to the fixed component of the linear guide 2-4-4 via moving component two. The fixed component of the connecting assembly 2-4 is fixedly connected to the slide rail 1, and the fire baffle 2-3 can move closer to or farther from the curved plate 2-1. Furthermore, the fixed component is a guide rail, and the moving component is a slider.

[0037] Example 5, based on Example 4, an auxiliary tool for welding pipes and flanges, such as Figure 5 As shown, the moving component of the linear guide 2-4-4 is connected to the fire baffle 2-3 via a storage plate 2-8. The side of the storage plate 2-8 closest to the curved plate 2-1 is connected to the bottom of the fire baffle 2-3, and the other side of the storage plate 2-8 facing away from the curved plate 2-1 is connected to the top of the fire baffle 2-3 via a reinforcing diagonal rod 2-7. Specifically, the storage plate 2-8 is fixedly connected to the moving component of the linear guide 2-4-4. The storage plate 2-8 is vertically connected to the fire baffle 2-3. The storage plate 2-8 is arranged horizontally, and the fire baffle 2-3 is arranged vertically. The fire baffle 2-3 can not only slide relative to the slide rail 1, but also slide on the linear guide 2-4-4. The reinforcing diagonal rod 2-7 is used to improve the reliability of the connection between the storage plate 2-8 and the fire baffle 2-3.

[0038] Example 6, based on Example 5, an auxiliary tool for welding pipes and flanges, such as Figure 4 and Figure 6 As shown, the connecting assembly 2-4 also includes a pulley 2-4-2 connected to the fixed component of the linear guide 2-4-4, and the pulley 2-4-2 is adapted to the slide rail 1. Specifically, the pulley 2-4-2 is connected directly below the linear guide 2-4-4 to prevent the fire baffle 2-3 and the pulley 2-4-2 from moving in a non-linear direction, thereby causing the fire baffle 2-3 and the pulley 2-4-2 to slide unevenly. The connecting assemblies 2-4 on the two support frames 2 slide on the slide rail 1 via the pulley 2-4-2. The curved plates 2-1 and fire baffles 2-3 of the two support frames 2 slide along the slide rail 1 with the connecting assembly 2-4, thereby adjusting the distance between the two support frames 2 and supporting pipes of various lengths.

[0039] Example 7, based on Example 6, an auxiliary tool for welding pipes and flanges, such as Figure 4As shown, the pulley 2-4-2 is shaped like a rotating body, with a V-shaped annular groove formed on the rotating surface of the rotating body. The slide rail 1 includes an angle steel 1-3 and a channel steel 1-2 connected vertically. The angle steel 1-3 is connected to the V-shaped annular groove of the pulley 2-4-2. Specifically, the V-shaped annular groove can reduce the weight of the pulley 2-4-2 and reduce the friction between the pulley 2-4-2 and the slide rail 1. The pulley increases the contact area between the pulley 2-4-2 and the slide rail 1, making the connection more reliable. The angle steel 1-3 is buckled onto the top of the channel steel 1-2. The pulley 2-4-2 is connected to the top corner of the angle steel 1-3. The other two sides of the angle steel 1-3 are connected to the top of the channel steel 1-2. The bottom of the channel steel 1-2 is fixedly connected to the ground. The pulley 2-4-2 slides or rolls on the angle steel 1-3. Both sides of the channel steel 1-2 are provided with ear plates 1-1, and the ear plates 1-1 are provided with openings. Bolts are passed through the openings on the ear plates 1-1 and connected to the ground to achieve the connection between the channel steel 1-2 and the ground.

[0040] Example 8, based on Example 7, an auxiliary tool for welding pipes and flanges, such as Figure 4 As shown, the connecting assembly 2-4 also includes a downwardly opening channel structure, with the pulley 2-4-2 rotatably connected between the two side walls of the channel structure. Specifically, the top of the channel steel structure is connected to the fixed component of the linear guide rail 2-4-4, and the pulley 2-4-2 is rotatably connected to the two side walls of the channel structure. The rotational connection makes the friction between the pulley 2-4-2 and the slide rail 1 rolling friction, greatly reducing the frictional resistance of the pulley 2-4-2 during movement, making it easier to adjust the position of the curved plate 2-1 and the fire baffle 2-3.

[0041] Example 9, based on Example 8, an auxiliary tool for welding pipes and flanges, such as Figure 4 and Figure 5 As shown, the trough structure includes a connected angle steel 2-4-1 and a pulley baffle 2-4-3. The top surface of the angle steel 2-4-1 is connected to the fixed component of the linear guide 2-4-4, and the two ends of the pulley 2-4-2 are respectively rotatably connected to the side surface of the angle steel 2-4-1 and the pulley baffle 2-4-3. Specifically, the top surface of the angle steel 2-4-1 is fixedly connected to the bottom of the linear guide 2-4-4, and the pulley 2-4-2 is rotatably connected between the side surface of the angle steel 2-4-1 and the pulley baffle 2-4-3. The pulley baffle 2-4-3 is used to limit the forward and backward movement of the pulley 2-4-2, thereby preventing the pulley 2-4-2 from falling off the slide rail 1 when sliding.

[0042] Example 10, based on Example 9, an auxiliary tool for welding pipes and flanges, the support frame 2 also includes angle steel three 2-6, the top surface of angle steel three 2-6 is vertically connected to the arc plate 2-1, and the side surface of angle steel three 2-6 is connected to the fixed part of the linear guide rail 2-4-4 and / or angle steel two 2-4-1 and / or pulley baffle 2-4-3. Specifically, the top surface of angle steel three 2-6 is vertically connected to the arc plate 2-1, which can make the arc plates 2-1 on the two support frames 2 parallel to each other, avoiding inconsistent heights of the two ends of the pipe on the arc plate 2-1, which reduces the welding quality. The side surface of angle steel three 2-6 is fixedly connected to the fixed part of the linear guide rail 2-4-4, so that the arc plate 2-1 can only slide on the slide rail 1, reducing the movement of the arc plate 2-1, reducing the difficulty of installing the arc plate 2-1, and improving the accuracy of the installation position of the arc plate 2-1. Furthermore, the side surface of angle steel three 2-6 can also be fixedly connected to angle steel two 2-4-1 and / or pulley baffle 2-4-3, so that the arc plate 2-1 can only slide on the slide rail 1, reducing the movement of the arc plate 2-1, reducing the installation difficulty of the arc plate 2-1, and improving the accuracy of the installation position of the arc plate 2-1.

[0043] When implementing Example 10, the following steps are included:

[0044] S1 makes slide rail 1: Figure 6 As shown, take two channel steels 1-2 and invert them on the ground of the processing site. Weld perforated ear plates 1-1 on both sides of the channel steel 1-2, and then fix the perforated ear plates 1-1 to the ground with expansion bolts; invert two angle steels 1-3 at the center of the top plane of the channel steel 1-2 and weld them to the channel steel 1-2. The length of the channel steel 1-2 and the length of the angle steel 1-3 can be cut according to the needs of the site;

[0045] S2: Make the connection assembly 2-4: Take two angle steels 2-4-1, four pulleys 2-4-2, two sections of linear guide rails 2-4-4, and some screws, nuts and other accessories, and assemble them into Figure 4 Connecting components 2-4 shown;

[0046] S3: Install the curved plate 2-1, roller 2-2 and fire baffle 2-3: Figure 3As shown, according to the spacing between the two channel steels 1-2, two sections of angle steel 2-6 of appropriate length are measured and welded to the linear guide rail 2-4-4 of the connecting assembly 2-4 to serve as the support for the arc plate 2-1. Cut four shovel-shaped steel plates as arc plates 2-1, with two plates in each group, and punch mounting holes 2-5 on the arc edge of each group of arc plates 2-1. The mounting holes 2-5 are spaced along the arc and symmetrically distributed about the perpendicular line of the arc. The arc plates 2-1 are placed vertically and welded to the supports. The gap between the two arc plates 2-1 is used to install the roller 2-2. When installing the roller 2-2, first place the roller 2-2 in the gap between the two arc plates 2-1. A through hole is provided in the center of the roller 2-2. Align the through hole with the mounting hole 2-5, and then insert the positioning pin to achieve the rotational connection between the roller 2-2 and the arc plate 2-1. The installation positions of the roller 2-2 on the two groups of arc plates 2-1 correspond one to one.

[0047] S3: Install support frame 2: Figure 1 As shown, by placing two support frames 2 opposite to each other on the slide rail 1, the pipe length and the distance between the arc plate 2-1 and the fire baffle 2-3 can be adjusted.

[0048] Anything not described in detail in the present invention is a conventional technical means known to those skilled in the art.

[0049] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An auxiliary tool for welding pipes and flanges, characterized by: The invention comprises a slide rail (1) and at least two support frames (2) slidably connected to the slide rail (1), each support frame (2) being connected to a plurality of rollers (2-2), the axis of the rollers (2-2) being parallel to the axis of the pipeline, and the connecting lines formed by the supporting points of the rollers (2-2) on each support frame (2) and the pipeline in contact are the same and located at the same horizontal height.

2. The auxiliary tool for pipe and flange welding according to claim 1, characterized in that: The support frame (2) comprises two arc-shaped plates (2-1) arranged at intervals, each arc-shaped plate (2-1) is provided with a plurality of mounting holes (2-5) arranged along an arc line, and the roller (2-2) is connected to the arc-shaped plate (2-1) via a positioning pin and the mounting hole (2-5).

3. The auxiliary tool for pipe and flange welding according to claim 2, characterized in that: The slide rail (1) is connected to two support frames (2), and fire baffles (2-3) are provided on opposite sides of the arc plates (2-1) of the two support frames (2). The fire baffles (2-3) and the arc plates (2-1) are both slidably connected to the slide rail (1).

4. The auxiliary tool for pipe and flange welding according to claim 3, characterized in that: The fire baffle (2-3) and the arc-shaped plate (2-1) are both connected to the slide rail (1) via a connecting assembly (2-4). The connecting assembly (2-4) includes a linear guide rail (2-4-4). The moving part of the linear guide rail (2-4-4) is connected to the fire baffle (2-3), and the fixed part of the linear guide rail (2-4-4) is connected to the arc-shaped plate (2-1).

5. The auxiliary tool for pipe and flange welding according to claim 4, characterized in that: The moving parts of the linear guide rail (2-4-4) are connected to the fire baffle (2-3) via a storage plate (2-8); the side of the storage plate (2-8) close to the curved plate (2-1) is connected to the bottom of the fire baffle (2-3); and the other side of the storage plate (2-8) facing away from the curved plate (2-1) is connected to the top of the fire baffle (2-3) via a reinforcing diagonal rod (2-7).

6. The auxiliary tool for pipe and flange welding according to claim 5, characterized in that: The connection assembly further comprises a pulley (2-4-2) connected to a fixed component of the linear guide rail (2-4-4), and the pulley (2-4-2) is adapted to the slide rail (1).

7. The auxiliary tool for pipe and flange welding according to claim 6, characterized in that: The pulley (2-4-2) has a rotating body shape, and a V-shaped ring groove is provided on the rotating surface of the rotating body. The slide rail (1) includes an angle steel (1-3) and a channel steel (1-2) connected up and down, and the angle steel (1-3) is connected to the V-shaped ring groove of the pulley (2-4-2).

8. The auxiliary tool for pipe and flange welding according to claim 7, characterized in that: The connecting assembly (2-4) further comprises a groove-shaped structure with an opening facing downward, and the pulley (2-4-2) is rotatably connected between two side walls of the groove-shaped structure.

9. The auxiliary tool for pipe and flange welding according to claim 8, characterized in that: The groove structure includes a second angle steel (2-4-1) and a pulley baffle (2-4-3) connected to each other. The top surface of the second angle steel (2-4-1) is connected to the fixed component of the linear guide rail (2-4-4). The two ends of the pulley (2-4-2) are respectively rotatably connected to the side surfaces of the second angle steel (2-4-1) and the pulley baffle (2-4-3).

10. The auxiliary tool for pipe and flange welding according to claim 9, characterized in that: The support frame (2) further comprises angle steel three (2-6), the top surface of angle steel three (2-6) being vertically connected to the arc-shaped plate (2-1), and the side surface of angle steel three (2-6) being connected to the fixed component of the linear guide rail (2-4-4) and / or angle steel two (2-4-1) and / or the pulley baffle (2-4-3).

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