A water conservancy pipeline support structure

Abstract

The present invention provides a water conservancy pipeline support structure, belonging to the technical field of pipeline support. For this water conservancy pipeline support structure, the clamping assembly includes an expansion cylinder. A piston is arranged inside the expansion cylinder, and a threaded rod is arranged on the piston. Expansion material is filled on one side of the piston inside the expansion cylinder, and a return spring is arranged on the other side of the piston inside the expansion cylinder. A one-way valve is arranged on the hose, and a ball is arranged on the clamping ring; if the terrain changes, only the clamping ring needs to be rotated to change the angle. Through the arrangement of the ball, the pipeline itself can rotate and the pipeline can also be displaced. The return spring prevents the support structure from loosening due to long-term shaking. The pipeline shakes to blow air and ventilate the threaded part to prevent the threaded part from rusting. When the temperature rises, it prevents the pipeline from being extruded and deformed or damaged due to the increase in volume caused by thermal expansion. When the temperature drops, it prevents gaps from being generated between the clamping ring and the pipeline, enhancing the firmness of the pipeline.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline support, and particularly relates to a support structure for water conservancy pipelines. Background Art

[0002] Water conservancy projects are projects built to control and allocate surface water and groundwater in nature to achieve the purpose of eliminating disasters and bringing benefits, and are also called water projects. Water is an indispensable and precious resource for human production and life. However, its natural state does not fully meet the needs of humans. Only by building water conservancy projects can the water flow be controlled, flood disasters be prevented, and the regulation and distribution of water volume be carried out to meet the needs of people's lives and production for water resources. Water conservancy projects need to build different types of water conservancy project buildings such as dams, dikes, spillways, sluice gates, intakes, channels, aqueducts, raft channels, fishways, tunnels, riverbanks or bridges to achieve their goals; during the water conservancy construction process, pipelines generally need to be installed on water conservancy project buildings for water conservancy construction. During the pipeline installation process, a support structure needs to be installed on the water conservancy project building in advance to enhance the firmness of the pipeline and the installation effect of the pipeline.

[0003] At present, during the installation of water conservancy pipelines, due to the change of terrain, the pipeline cannot be fixed at a rotating angle, and its use is limited; when the pipelines are spliced with each other, the pipeline needs to rotate itself so that the ends of the pipelines are connected to complete the splicing work. Moreover, because the pipeline is relatively heavy, it is laborious to move the pipeline, reducing work efficiency; when water flows through the pipeline, sometimes the water volume is too large and sometimes too small, and the pipeline vibrates with the size of the water flow. The acceleration of the water flow will cause the pipeline to shake; and it is easy to get wet with the change of the environment, causing the threads of the bolts to rust, which is not convenient for disassembly or maintenance; due to the temperature difference in the weather, generally the pipeline is exposed outside. With the change of the weather temperature, the pipeline has thermal expansion and contraction. When the temperature rises, the clamping piece and the pipeline itself generate extrusion force, which causes certain damage to the pipeline. When the temperature drops, the extrusion force of the clamping piece on the pipeline gradually decreases, and there is a gap between the clamping piece and the pipeline, which is easy to cause loosening and other problems. Summary of the Invention

[0004] (1) The object of the present invention is to provide a support structure for water conservancy pipelines, aiming to solve the problems in the prior art that during the installation of water conservancy pipelines, with the change of terrain, the pipeline cannot be fixed at a rotating angle, resulting in limited use; when splicing pipelines with each other, the pipeline needs to rotate itself so that the ends of the pipelines are connected to complete the splicing work, and because the pipeline is relatively heavy, it is laborious to move the pipeline, reducing work efficiency; when water flows through the pipeline, sometimes the water volume is too large and sometimes too small, causing vibrations with the change of water flow size, and the acceleration of water flow will cause the pipeline to shake; and it is easy to get damp with the change of environment, causing rust at the thread of the bolt, which is not convenient for disassembly or maintenance; due to the temperature difference in the weather, generally the pipeline is exposed outside, and with the change of weather temperature, the pipeline has thermal expansion and contraction. When the temperature rises, the clamping piece and the pipeline itself generate extrusion force, which causes certain damage to the pipeline. When the temperature drops, the extrusion force of the clamping piece on the pipeline gradually decreases, and there is a gap between the clamping piece and the pipeline, which is easy to cause loosening and other problems.

[0005] (2) To achieve the above object, the present invention provides the following technical solutions:

[0006] A support structure for water conservancy pipelines includes a fixed frame and a clamping ring. The clamping ring is arranged on the fixed frame. The shape of the fixed frame is "U", and a clamping assembly is arranged on the fixed frame.

[0007] The clamping assembly includes an expansion cylinder. A piston is arranged inside the expansion cylinder. A threaded rod is arranged on the piston. The threaded rod is threadedly connected to the fixed frame. An expansion material is filled on one side of the piston inside the expansion cylinder. Hoses are arranged on both sides of the threaded rod on the expansion cylinder. The ends of the hoses extend into the interior of the fixed frame. A return spring is arranged on the other side of the piston inside the expansion cylinder. A flange bearing is arranged at the bottom of the expansion cylinder. Air holes are arranged on the surface of the expansion cylinder near the flange bearing. The flange bearing is connected to the clamping ring. One-way valves are arranged on the hoses; balls are arranged on the clamping ring.

[0008] Preferably, a fastening bolt is threadedly connected to the threaded rod. A sealing gasket is arranged between the fastening bolt and the fixed frame. The sealing gasket is sleeved on the threaded rod. The sealing gasket blocks the overflow of gas; there is a gap between the threaded rod and the expansion cylinder.

[0009] Preferably, guide rods are fixedly connected to the left and right sides of the fixed frame near the threaded rod. A limiting block is fixedly connected to the expansion cylinder. The guide rods penetrate through the interior of the limiting block. The guide rods are used to increase the stability of the expansion cylinder.

[0010] Preferably, a rotating ring is fixedly connected to the top end of the threaded rod. The rotating ring is used to drive the threaded rod to rotate.

[0011] Preferably, the number of the clamping rings is two, and the two clamping rings are symmetrically spliced, and a docking component is fixedly connected at the splicing position of the two clamping rings.

[0012] Preferably, the docking component includes fixing handles, the number of the fixing handles is two, a plug post is fixedly connected to one of the fixing handles, a through hole is formed in the other fixing handle, and the two clamping rings approach each other to drive the plug post to insert into the through hole.

[0013] Preferably, a mounting plate is fixedly connected to the fixing frame, mounting holes are formed in the mounting plate, and a rib is arranged at the connection position between the fixing frame and the mounting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. When installing the pipeline in the present invention, it is necessary to insert the pipeline into the two clamping rings. Through the setting of the flange bearing, the angle of the clamping ring can be changed, so that the clamping ring rotates around the axis of the expansion cylinder. If the terrain changes, only the clamping ring needs to be rotated to change the angle; if the pipeline needs to be installed obliquely, only the mounting plate needs to be fixed obliquely, so that the pipeline can be installed according to the terrain.

[0016] 2. When the pipeline is installed in the present invention, through the setting of the balls, the pipeline itself can rotate and the pipeline can also be displaced, which is relatively labor-saving, so that it is convenient to install the pipeline and improve the work efficiency.

[0017] 3. When the water flow passes through the pipeline in the present invention, if the pipeline shakes, an external force is applied to the clamping ring by the outer wall of the pipeline. At this time, the expansion cylinder presses the return spring, and the threaded rod extends into the interior of the expansion cylinder, and one of the clamping rings moves away from the other clamping ring. Then the return spring has a buffering and shock-absorbing effect on the pipeline, avoiding the loosening of the support structure caused by long-term shaking and affecting the use.

[0018] 4. When the pipeline shakes in the present invention, when the pressure increases in the expansion cylinder, the internal gas of the expansion cylinder sprays out from the port of the hose, and the gasket can prevent the gas from overflowing. At this time, the gas passes through the threads of the threaded rod and the fastening bolt, and the gas is discharged from the threaded path. When the negative pressure is generated in the expansion cylinder, the external gas enters the expansion cylinder through the air holes, and then the shaking of the pipeline is used to jet air and ventilate the threaded part, avoiding rusting at the threaded part of the threaded rod and the fastening bolt and being convenient for disassembly or maintenance.

[0019] 5. When the temperature rises in the present invention, the volume of the thermal expansion material inside the expansion cylinder increases, generating an expansion force to press the piston. At this time, the threaded rod shrinks into the interior of the expansion cylinder, moving the two clamping rings away from each other, reducing the extrusion force of the two clamping rings on the pipeline, and avoiding the pipeline being squeezed and deformed or damaged due to the increase in volume caused by thermal expansion.

[0020] 6. When the temperature of the present invention decreases, the volume of the thermal expansion material decreases. Then, the piston is displaced in the opposite direction through the return spring, and the threaded rod extends out from the inside of the expansion cylinder, bringing the two clamping rings closer to each other. At this time, the two clamping rings tighten as the volume of the pipeline shrinks, preventing gaps from forming between the clamping rings and the pipeline and enhancing the firmness of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0023] Figure 2 in the present invention Figure 1 is an enlarged schematic view of the structure at A in

[0024] Figure 3 is a schematic side view structure diagram of the present invention;

[0025] Figure 4 is a schematic side sectional structure diagram of the present invention;

[0026] Figure 5 in the present invention Figure 4 is an enlarged schematic view of the structure at B in

[0027] Figure 6 in the present invention Figure 4 is an enlarged schematic view of the structure at C in

[0028] Figure 7 is a schematic front sectional structure diagram of the present invention;

[0029] Figure 8 in the present invention Figure 7 is an enlarged schematic view of D in

[0030] In the figure: 1, fixed frame; 2, clamping ring; 3, clamping assembly; 301, expansion cylinder; 302, piston; 303, threaded rod; 304, hose; 305, return spring; 306, flange bearing; 307, air hole; 308, fastening bolt; 309, sealing gasket; 310, guide rod; 311, limit block; 312, rotating ring; 313, one-way valve; 4, ball; 5, docking assembly; 501, fixed handle; 502, insertion post; 503, through hole; 6, mounting plate; 7, mounting hole; 8, rib. DETAILED DESCRIPTION OF THE INVENTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0032] The present invention provides the following technical solutions. Refer to FIGS. (1 - 8):

[0033] A water conservancy pipeline support structure includes a fixing frame 1 and a clamping ring 2. The clamping ring 2 is arranged on the fixing frame 1. The shape of the fixing frame 1 is "U", and a clamping assembly 3 is arranged on the fixing frame 1.

[0034] The clamping assembly 3 includes an expansion cylinder 301. A piston 302 is arranged inside the expansion cylinder 301. A threaded rod 303 is arranged on the piston 302. The threaded rod 303 is threadedly connected to the fixing frame 1. An expansion material is filled on one side of the piston 302 inside the expansion cylinder 301. Hoses 304 are arranged on both sides of the threaded rod 303 on the expansion cylinder 301. The ends of the hoses 304 extend into the inside of the fixing frame 1. A return spring 305 is arranged on the other side of the piston 302 inside the expansion cylinder 301. A flange bearing 306 is arranged at the bottom of the expansion cylinder 301. Air holes 307 are arranged on the surface of the expansion cylinder 301 near the flange bearing 306. The flange bearing 306 is connected to the clamping ring 2. Check valves 313 are arranged on the hoses 304; balls 4 are arranged on the clamping ring 2.

[0035] During the installation process of the water conservancy pipeline, due to the change of terrain, the pipeline cannot be fixed at a rotating angle, and its use is limited; when installing the pipeline, the pipeline needs to be inserted into the two clamping rings 2. Through the setting of the flange bearing 306, the clamping ring 2 can change its angle, enabling the clamping ring 2 to rotate around the axis of the expansion cylinder 301. If the terrain changes, only the clamping ring 2 needs to be rotated to change the angle; if the pipeline needs to be installed obliquely, only the mounting plate 6 needs to be fixed obliquely, so that the pipeline can be installed according to the terrain.

[0036] During the installation process of the water conservancy pipeline, when the pipelines are spliced with each other, the pipeline needs to rotate itself so that the ends of the pipelines are connected to complete the splicing work; and when installing the pipeline, since the pipeline is relatively heavy, it is laborious to move the pipeline, reducing work efficiency; when installing the pipeline, through the setting of the balls 4, the pipeline itself can rotate and the pipeline can also be displaced, which is relatively labor-saving, thus facilitating the installation of the pipeline and improving work efficiency.

[0037] When a water conservancy pipeline is in use, if water flows through the pipeline, sometimes the water volume is too large and sometimes it is too small. Along with the size of the water flow, vibrations occur. The acceleration of the water flow will cause the pipeline to shake. When the water flow passes through the pipeline, if the pipeline shakes, the outer wall of the pipeline exerts an external force on the clamping ring 2. At this time, the expansion cylinder 301 presses on the return spring 305, and the threaded rod 303 extends into the interior of the expansion cylinder 301. One clamping ring 2 moves away from the other clamping ring 2, and then the return spring 305 has a buffering and shock-absorbing effect on the pipeline, preventing the support structure from loosening due to long-term shaking and affecting its use.

[0038] When a water conservancy pipeline is in use, it is prone to getting wet with the change of the environment, causing the threads of the bolts to rust, which is not convenient for disassembly or maintenance. When the pipeline shakes, as described above, the piston 302 generates an amplitude inside the expansion cylinder 301, causing increased pressure inside the expansion cylinder 301. Then the gas inside the expansion cylinder 301 sprays out from the port of the hose 304, and the gasket 309 can prevent the gas from overflowing. At this time, the gas passes through the threads of the threaded rod 303 and the fastening bolt 308 and is discharged from the threaded path. When negative pressure is generated inside the expansion cylinder 301, the check valve 313 prevents the gas in the hose 304 from flowing back, and external gas enters the expansion cylinder 301 through the air holes 307, thereby jetting air to ventilate the threaded parts through the shaking of the pipeline, preventing the threads of the threaded rod 303 and the fastening bolt 308 from rusting and being convenient for disassembly or maintenance.

[0039] When a water conservancy pipeline is in use, due to the temperature difference in the weather, generally the pipeline is exposed outside. With the change of the weather temperature, the pipeline expands and contracts thermally. When the temperature rises, the pipeline generates extrusion force, which causes certain damage to the pipeline. When the temperature drops, the extrusion force of the pipeline gradually decreases, and there is a gap between the clamping ring 2 and the pipeline, which is easy to cause loosening. When the temperature rises, the volume of the thermal expansion material inside the expansion cylinder 301 increases, generating an expansion force to press on the piston 302. At this time, the threaded rod 303 contracts into the interior of the expansion cylinder 301, moving the two clamping rings 2 away from each other, reducing the extrusion force of the two clamping rings 2 on the pipeline, and preventing the pipeline from being extruded and deformed or damaged due to the increase in volume caused by thermal expansion. On the contrary, when the temperature drops, the volume of the thermal expansion material decreases, and then the return spring 305 displaces the piston 302 in the opposite direction, and the threaded rod 303 extends out of the interior of the expansion cylinder 301, moving the two clamping rings 2 closer to each other. At this time, the two clamping rings 2 tighten as the volume of the pipeline contracts, preventing a gap from occurring between the clamping ring 2 and the pipeline and enhancing the firmness of the pipeline.

[0040] Reference Figure 2 and Figure 6, a fastening bolt 308 is threadedly connected to the threaded rod 303. A sealing gasket 309 is provided between the fastening bolt 308 and the fixed bracket 1. The sealing gasket 309 is sleeved on the threaded rod 303, and the sealing gasket 309 blocks the gas from overflowing; there is a gap between the threaded rod 303 and the expansion cylinder 301.

[0041] More specifically, through the setting of the fastening bolt 308, when the threaded rod 303 rotates to a specified position, the threaded rod 303 is fixed by the fastening bolt 308. When the piston 302 generates displacement in the expansion cylinder 301, the internal air pressure of the expansion cylinder 301 circulates through the gap, and the thermal expansion material is in a solid state.

[0042] Reference Figure 2 and Figure 8 , guide rods 310 are fixedly connected to both the left and right sides of the fixed bracket 1 near the threaded rod 303. A limit block 311 is fixedly connected to the expansion cylinder 301. The guide rods 310 penetrate through the inside of the limit block 311, and the guide rods 310 are used to increase the stability of the expansion cylinder 301.

[0043] More specifically, when the expansion cylinder 301 and the threaded rod 303 have relative displacement, the expansion cylinder 301 drives the guide rod 310 to slide in the limit block 311, and the stability of the expansion cylinder 301 can be increased through the guide rod 310.

[0044] Reference Figure 1 and Figure 2 , a rotating ring 312 is fixedly connected to the top end of the threaded rod 303, and the rotating ring 312 is used to drive the threaded rod 303 to rotate.

[0045] More specifically, through the setting of the rotating ring 312, when the rotating ring 312 rotates, the rotating ring 312 drives the threaded rod 303 to rotate.

[0046] Reference Figure 1 、 Figure 4 and Figure 5 , the number of the clamping rings 2 is two, and the two clamping rings 2 are symmetrically spliced. A docking component 5 is fixedly connected to the splicing part of the two clamping rings 2. The docking component 5 includes a fixed handle 501. The number of the fixed handles 501 is two. A plug post 502 is fixedly connected to one of the fixed handles 501, and a through hole 503 is opened on the other fixed handle 501. When the two clamping rings 2 approach each other, the plug post 502 on one of the fixed handles 501 is inserted into the through hole 503 on the other fixed handle 501.

[0047] More specifically, when the two clamping rings 2 clamp the pipeline, the two clamping rings 2 are made to approach each other. At this time, the plug post 502 on one of the fixed handles 501 is inserted into the through hole 503 on the other fixed handle 501 for splicing.

[0048] Reference Figure 1, a mounting plate 6 is fixedly connected to the fixing frame 1. Mounting holes 7 are provided on the mounting plate 6. A rib 8 is provided at the connection between the fixing frame 1 and the mounting plate 6.

[0049] More specifically, an expansion bolt can be inserted into the mounting hole 7, and then the expansion bolt is inserted into the building to fix the support structure. Through the setting of the rib 8, the stability between the fixing frame 1 and the mounting plate 6 is increased.

[0050] The present invention is provided as follows:

[0051] When installing the pipeline, the pipeline needs to be inserted into two clamping rings 2. Through the setting of the flange bearing 306, the clamping ring 2 can change its angle, so that the clamping ring 2 rotates around the axis of the expansion cylinder 301. If the terrain changes, only the clamping ring 2 needs to be rotated to change the angle; if the pipeline needs to be installed obliquely, only the mounting plate 6 needs to be fixed obliquely, so that the pipeline can be installed according to the terrain.

[0052] When installing the pipeline, through the setting of the balls 4, the pipeline itself can rotate and the pipeline can also be displaced, which is relatively labor-saving, thus facilitating the installation of the pipeline and improving work efficiency.

[0053] When water flows through the pipeline, if the pipeline shakes, an external force is exerted on the clamping ring 2 by the outer wall of the pipeline. At this time, the expansion cylinder 301 presses on the return spring 305, and the threaded rod 303 extends into the interior of the expansion cylinder 301. One clamping ring 2 moves away from the other clamping ring 2, then the return spring 305 has a buffering and shock-absorbing effect on the pipeline, avoiding the loosening of the support structure caused by long-term shaking and affecting the use.

[0054] When the pipeline shakes, as described above, the piston 302 generates an amplitude in the expansion cylinder 301, causing increased pressure in the expansion cylinder 301. Then the gas inside the expansion cylinder 301 is ejected from the port of the hose 304, and the gasket 309 can prevent the gas from overflowing. At this time, the gas passes through the threads of the threaded rod 303 and the fastening bolt 308 and is discharged from the threaded path. When negative pressure is generated in the expansion cylinder 301, the one-way valve 313 prevents the gas in the hose 304 from flowing back, and external gas enters the expansion cylinder 301 through the air hole 307. Thus, the shaking of the pipeline jets air through the threads to avoid rusting at the threads of the threaded rod 303 and the fastening bolt 308, facilitating disassembly or maintenance.

[0055] When the temperature rises, the volume of the thermal expansion material inside the expansion cylinder 301 increases, generating an expansion force to press on the piston 302. At this time, the threaded rod 303 contracts into the interior of the expansion cylinder 301, moving the two clamping rings 2 away from each other, reducing the extrusion force of the two clamping rings 2 on the pipeline, and preventing the pipeline from being extruded and deformed or damaged due to the increase in volume caused by thermal expansion. On the contrary, when the temperature drops, the volume of the thermal expansion material decreases, and the piston 302 is displaced in the opposite direction by the return spring 305, causing the threaded rod 303 to extend out from the interior of the expansion cylinder 301, moving the two clamping rings 2 closer to each other. At this time, the two clamping rings 2 tighten as the volume of the pipeline shrinks, preventing gaps from forming between the clamping rings 2 and the pipeline and enhancing the firmness of the pipeline.

[0056] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water conservancy pipeline support structure, comprising a fixing frame (1) and a clamping ring (2), the clamping ring (2) is arranged on the fixing frame (1), and is characterized in that: The fixing bracket (1) is in a "U" shape, and a clamping assembly (3) is arranged on the fixing bracket (1). The clamping assembly (3) includes an expansion cylinder (301). A piston (302) is arranged inside the expansion cylinder (301). A threaded rod (303) is arranged on the piston (302). The threaded rod (303) is in threaded connection with the fixing bracket (1). An expansion material is filled on one side of the piston (302) inside the expansion cylinder (301). Hoses (304) are arranged on both sides of the threaded rod (303) on the expansion cylinder (301). The ends of the hoses (304) extend into the inside of the fixing bracket (1). A return spring (305) is arranged on the other side of the piston (302) inside the expansion cylinder (301). A flange bearing (306) is arranged at the bottom of the expansion cylinder (301). Air holes (307) are arranged on the surface of the expansion cylinder (301) near the flange bearing (306). The flange bearing (306) is connected to the clamping ring (2). One-way valves (313) are arranged on the hoses (304). Ball bearings (4) are arranged on the clamping ring (2).

2. The water conservancy pipeline support structure according to claim 1, characterized in that: A fastening bolt (308) is in threaded connection with the threaded rod (303). A gasket (309) is arranged between the fastening bolt (308) and the fixing bracket (1). The gasket (309) is sleeved on the threaded rod (303). The gasket (309) blocks the gas from overflowing. A gap is left between the threaded rod (303) and the expansion cylinder (301).

3. A water conservancy pipeline support structure according to claim 1, characterized in that: Guide rods (310) are fixedly connected to the left and right sides of the fixing bracket (1) near the threaded rod (303). A limiting block (311) is fixedly connected to the expansion cylinder (301). The guide rods (310) penetrate through the inside of the limiting block (311). The guide rods (310) are used to increase the stability of the expansion cylinder (301).

4. A water conservancy pipeline support structure according to claim 1, characterized in that: A rotating ring (312) is fixedly connected to the top end of the threaded rod (303). The rotating ring (312) is used to drive the threaded rod (303) to rotate.

5. A water conservancy pipeline support structure according to claim 1, characterized in that: The number of the clamping rings (2) is two. The two clamping rings (2) are symmetrically spliced. A docking assembly (5) is fixedly connected to the splicing part of the two clamping rings (2).

6. The water conservancy pipeline support structure according to claim 5, characterized in that: The docking assembly (5) includes fixing handles (501). The number of the fixing handles (501) is two. A plug post (502) is fixedly connected to one of the fixing handles (501). A through hole (503) is formed on the other fixing handle (501). The two clamping rings (2) approach each other to drive the plug post (502) to insert into the through hole (503).

7. A water conservancy pipeline support structure according to claim 1, characterized in that: An installation plate (6) is fixedly connected to the fixing bracket (1). Installation holes (7) are formed on the installation plate (6). A rib (8) is arranged at the connection part of the fixing bracket (1) and the installation plate (6).

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