Conical pipe type trash rack for construction opening of underwater plug blasting and its using method

Abstract

The present invention provides a conical tube type trash rack for the construction hole of underwater plug blasting and its usage method, which relates to the technical field of underwater plug equipment. The conical tube type trash rack for the construction hole of underwater plug blasting and its usage method include a copper tube mechanism, a support mechanism, a trash rack net mechanism and a fish blocking electric fence mechanism. The copper tube mechanism is provided with a support mechanism, the top of the support mechanism is provided with a trash rack net mechanism, and the top of the trash rack net mechanism is provided with a fish blocking electric fence mechanism. By divers, the trash rack net mechanism is assembled and welded on the support base in sequence. Adopting a special-shaped structure form and divided into multiple pieces, it is convenient for manufacturing, transportation, installation and maintenance. A fish blocking electric fence is arranged on the trash rack to prevent fish from escaping. The fixing method of the trash rack can be welding or bolt connection, which saves underwater concrete construction, reduces the use of concrete, is beneficial to environmental protection, reduces the floor area of the management room, and saves the land investment.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater plug equipment, and specifically to a conical pipe type trash rack for the construction hole of underwater plug blasting and its usage method. Background Art

[0002] In water conservancy projects, in order to convey water or discharge flood, closed water conveyance channels are often excavated through mountains, which are called hydraulic tunnels. According to their different tasks, they can be divided into water release tunnels and flood discharge tunnels. The water release tunnel is used to release the water required for irrigation, power generation, water supply, etc. from the reservoir; the flood discharge tunnel is used to cooperate with the spillway to discharge part of the flood, discharge the tail water of the hydropower station, empty the reservoir for the need of overhauling the hub buildings or for reasons such as war preparedness, and drain sand, etc. Blasting is often required during the process of excavating the tunnel.

[0003] According to a non-vortex plug blasting layout structure in the open water area of a confidential project provided by the patent document CN201921118941.X, the method of installing the trash rack after the tunnel construction finally produced requires cofferdam construction, and relevant water isolation cofferdams and overhaul engineering buildings need to be built supporting. The overall project investment is large, the construction period is long, and if the ecological environment of the water area and animals and plants including fish cannot be blocked, ecological losses will be caused. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a conical pipe type trash rack for the construction hole of underwater plug blasting and its usage method, which solves the problems of overhaul engineering buildings, large overall project investment, long construction period and ecological damage.

[0006] (2) Technical Solutions

[0007] To achieve the above purposes, the present invention is realized through the following technical solutions: A conical pipe type trash rack for the construction hole of underwater plug blasting, including a copper pipe mechanism, a support mechanism, a trash rack mechanism and a fish blocking electric grid mechanism. The copper pipe mechanism is provided with a support mechanism, the support mechanism is provided with a trash rack mechanism at the top, and the trash rack mechanism is provided with a fish blocking electric grid mechanism at the top.

[0008] Preferably, the copper pipe mechanism includes a conical copper pipe, rib plates, a first transverse stiffening ring, longitudinal stiffening rib plates and a second transverse stiffening ring. A plurality of groups of uniformly annularly arranged rib plates are fixedly connected inside the conical copper pipe, a plurality of groups of uniformly annularly arranged longitudinal stiffening rib plates are fixedly connected to the inner side wall of the conical copper pipe, the second transverse stiffening ring is fixedly connected to the top of the conical copper pipe, and the first transverse stiffening ring is fixedly connected to the bottom of the conical copper pipe.

[0009] Preferably, the support mechanism includes a support base, secondary beams, main cross beams, auxiliary cross beams, gusset plates, batten bars and inclined support plates. The support base is fixedly connected to the top of the second transverse stiffening ring. The front and rear ends of the inner side wall of the support base are fixedly connected with secondary beams. The left and right ends of the inner side wall of the support base are fixedly connected with main cross beams. A group of auxiliary cross beams are fixedly connected to the upper middle part and the lower middle part of the inner side wall of the support base. A plurality of groups of gusset plates arranged in a uniform circular pattern are fixedly connected to the outer side wall of the bottom of the support base. Each gusset plate is fixedly connected with a group of inclined support plates.

[0010] Preferably, the trash rack mechanism includes a first special-shaped fixing frame, first grid bars, first I-beams, a second special-shaped fixing frame, second grid bars and second I-beams. A plurality of groups of first grid bars arranged longitudinally in a uniform pattern are fixedly connected to the inner side wall of the first special-shaped fixing frame. A plurality of groups of first I-beams arranged horizontally in a uniform pattern are fixedly connected to the inner side wall of the first special-shaped fixing frame. A plurality of groups of second grid bars arranged longitudinally in a uniform pattern are fixedly connected to the inner side wall of the second special-shaped fixing frame. A plurality of groups of second I-beams arranged horizontally in a uniform pattern are fixedly connected to the inner side wall of the second special-shaped fixing frame.

[0011] Preferably, the fish blocking electric fence mechanism includes bolt fixing seats, support rods, sleeves and electrode steel pipes. The bolt fixing seats are uniformly and horizontally fixedly connected to the top of the auxiliary cross beams. A group of support rods are fixedly connected to the top of each bolt fixing seat. A group of sleeves are fixedly connected to the top ends of the support rods. Each row of sleeves is fixedly connected with a group of electrode steel pipes.

[0012] The conical trash rack for the construction opening of the rock plug blasting underwater and its using method include the following steps:

[0013] S1. First, form an inclined opening through blasting. Measure the diameter of the blasting opening in advance, manufacture a precast copper pipe mechanism of corresponding size, install a plurality of groups of rib plates arranged in a circular pattern inside the conical copper pipe, install a first transverse stiffening ring at the bottom of the conical copper pipe, install a second transverse stiffening ring at the top, and install a plurality of groups of longitudinally arranged and circumferentially fixed longitudinal stiffening rib plates on the inner side wall of the conical copper pipe to form a copper pipe mechanism. Set a track along the mountain body, and the track extends to the blasting opening. The precast copper pipe mechanism is fixed to the blasting opening by its own weight.

[0014] S2. Dive by divers, weld the support base to the top of the conical copper pipe, and weld the auxiliary cross beams and main cross beams arranged longitudinally and horizontally fixed on the inner side wall of the support base. Weld a group of secondary beams at the central position of the inner side wall of the support base. Weld a plurality of groups of inclined support plates welded by precast gusset plates at the bottom of the secondary beams, and make the outer ends of the inclined support plates all support on the longitudinal stiffening rib plates.

[0015] S4. Assemble the trash rack mechanism in advance on the open ground. Weld multiple groups of longitudinally arranged first bars on the inner sidewall of the first special-shaped fixing frame. Similarly, weld multiple groups of transversely arranged first I-beams on the inner sidewall of the first special-shaped fixing frame. Weld multiple groups of longitudinally arranged second bars on the inner sidewall of the second special-shaped fixing frame. Similarly, weld multiple groups of transversely arranged second I-beams on the inner sidewall of the second special-shaped fixing frame, thus assembling into multiple special-shaped structures. Then, transport the trash rack mechanism to the blasting opening through the pre-installed track, and the divers sequentially assemble and weld the trash rack mechanism on the support seat;

[0016] S5. After the divers complete the installation of the trash rack mechanism, use bolt fixing seats to fix multiple groups of support rods on the secondary cross beam and the main cross beam. A set of sleeves is welded to the outer end of each group of support rods, and a set of electrode steel pipes is fixed to each row of sleeves, finally completing the rapid installation of the trash rack

[0017] Preferably, the inclined support plates are all fixed with an inward inclination of 30 degrees, and two groups of evenly arranged lacing bars are fixedly connected to each of the inclined support plates.

[0018] Preferably, the first special-shaped fixing frame and the second special-shaped fixing frame can both be fixedly connected to the top of the support seat by welding.

[0019] (III) Beneficial effects

[0020] The present invention provides a conical pipe type trash rack for the construction opening of underwater rock plug blasting and its using method. It has the following beneficial effects:

[0021] 1. Through the added trash rack mechanism of the present invention, the trash rack mechanism is assembled in advance on the open ground. Weld multiple groups of longitudinally arranged first bars on the inner sidewall of the first special-shaped fixing frame. Similarly, weld multiple groups of transversely arranged first I-beams on the inner sidewall of the first special-shaped fixing frame. Weld multiple groups of longitudinally arranged second bars on the inner sidewall of the second special-shaped fixing frame. Similarly, weld multiple groups of transversely arranged second I-beams on the inner sidewall of the second special-shaped fixing frame, thus assembling into multiple special-shaped structures. Then, transport the trash rack mechanism to the blasting opening through the pre-installed track, and the divers sequentially assemble and weld the trash rack mechanism on the support seat. Adopting the special-shaped structure, it is divided into multiple pieces, which is convenient for manufacturing, transportation, installation and maintenance.

[0022] 2. After the divers complete the installation of the trash rack mechanism of the present invention, use bolt fixing seats to fix multiple groups of support rods on the secondary cross beam and the main cross beam. A set of sleeves is welded to the outer end of each group of support rods, and a set of electrode steel pipes is fixed to each row of sleeves. A fish blocking electric fence is arranged on the trash rack to prevent fish from escaping.

[0023] 3. In the present invention, the prefabricated copper pipe mechanism is fixed at the blasting opening by its own weight. The support mechanism, the trash rack mechanism and the fish blocking electric grid mechanism are fixed in sequence. The conical pipe is fixed on the concrete foundation by its own weight. The trash rack is fixed on the support platform, and the support platform is fixed on the conical pipe. The trash rack can be fixed by welding or bolt connection. The trash blocking device is directly installed using the opening after the plug blasting, eliminating the work such as the casting of pier, the transportation and installation of the gate and its embedded parts, the casting of bent frame, the casting of working bridge and traffic bridge, and the procurement and installation of the hoist, greatly shortening the construction period and saving the project investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the installation state of the present invention;

[0025] Figure 2 is a front view structural schematic diagram of the present invention;

[0026] Figure 3 is a top view structural schematic diagram of the present invention;

[0027] Figure 4 is a front view schematic diagram of the copper pipe mechanism of the present invention;

[0028] Figure 5 is a top view schematic diagram of the copper pipe mechanism of the present invention;

[0029] Figure 6 is a top view schematic diagram of the support mechanism of the present invention;

[0030] Figure 7 is a front view schematic diagram of the support mechanism of the present invention;

[0031] Figure 8 is a partial component structural schematic diagram of the trash rack mechanism of the present invention;

[0032] Figure 9 is a partial component structural schematic diagram of the trash rack mechanism of the present invention;

[0033] Figure 10 is a front view schematic diagram of the fish blocking electric grid mechanism of the present invention;

[0034] Figure 11 is a top view schematic diagram of the fish blocking electric grid mechanism of the present invention.

[0035] Among them, 1. Copper pipe mechanism; 2. Support mechanism; 3. Trash screen mechanism; 4. Fish blocking electric fence mechanism; 101. Conical copper pipe; 102. Rib plate; 103. First transverse stiffening ring; 104. Longitudinal stiffening rib plate; 105. Second transverse stiffening ring; 201. Support base; 202. Secondary beam; 203. Main cross beam; 204. Auxiliary cross beam; 205. Gusset plate; 206. Lacing bar; 207. Inclined support plate; 301. First special-shaped fixing frame; 302. First grid bar; 303. First I-beam; 304. Second special-shaped fixing frame; 305. Second grid bar; 306. Second I-beam; 401. Bolt fixing base; 402. Support rod; 403. Sleeve; 404. Electrode steel pipe. Detailed implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment:

[0038] As Figures 1-11 shown, the embodiment of the present invention provides a conical trash screen for the construction opening of a submerged rock plug blasting, including a copper pipe mechanism 1, a support mechanism 2, a trash screen mechanism 3 and a fish blocking electric fence mechanism 4, characterized in that: the copper pipe mechanism 1 is provided with a support mechanism 2, the top of the support mechanism 2 is provided with a trash screen mechanism 3, and the top of the trash screen mechanism 3 is provided with a fish blocking electric fence mechanism 4.

[0039] The copper pipe mechanism 1 includes a conical copper pipe 101, rib plates 102, a first transverse stiffening ring 103, longitudinal stiffening rib plates 104 and a second transverse stiffening ring 105. A plurality of groups of uniformly annularly arranged rib plates 102 are fixedly connected inside the conical copper pipe 101, a plurality of groups of uniformly annularly arranged longitudinal stiffening rib plates 104 are fixedly connected to the inner side wall of the conical copper pipe 101, the second transverse stiffening ring 105 is fixedly connected to the top of the conical copper pipe 101, and the first transverse stiffening ring 103 is fixedly connected to the bottom of the conical copper pipe 101.

[0040] The support mechanism 2 includes a support base 201, secondary beams 202, main cross beams 203, auxiliary cross beams 204, gusset plates 205, batten bars 206 and inclined support plates 207. The support base 201 is fixedly connected to the top of the second transverse stiffening ring 105. The front and rear ends of the inner side wall of the support base 201 are fixedly connected to the secondary beams 202, and the left and right ends of the inner side wall of the support base 201 are fixedly connected to the main cross beams 203. A group of auxiliary cross beams 204 are fixedly connected to both the upper middle part and the lower middle part of the inner side wall of the support base 201. Multiple groups of gusset plates 205 arranged in a uniform circular pattern are fixedly connected to the outer side of the bottom wall of the support base 201, and each group of gusset plates 205 is fixedly connected to a group of inclined support plates 207.

[0041] The trash rack mechanism 3 includes a first special-shaped fixing frame 301, first grid bars 302, first I-beams 303, a second special-shaped fixing frame 304, second grid bars 305 and second I-beams 306. Multiple groups of first grid bars 302 arranged in a uniform longitudinal pattern are fixedly connected to the inner side wall of the first special-shaped fixing frame 301, and multiple groups of first I-beams 303 arranged in a uniform transverse pattern are fixedly connected to the inner side wall of the first special-shaped fixing frame 301. Multiple groups of second grid bars 305 arranged in a uniform longitudinal pattern are fixedly connected to the inner side wall of the second special-shaped fixing frame 304, and multiple groups of second I-beams 306 arranged in a uniform transverse pattern are fixedly connected to the inner side wall of the second special-shaped fixing frame 304.

[0042] The fish-blocking electric fence mechanism 4 includes bolt fixing seats 401, support rods 402, sleeves 403 and electrode steel pipes 404. The bolt fixing seats 401 are evenly and horizontally fixedly connected to the top of the auxiliary cross beams 204, and a group of support rods 402 are fixedly connected to the top of each bolt fixing seat 401. A group of sleeves 403 are fixedly connected to the top ends of the support rods 402, and a group of electrode steel pipes 404 are fixedly connected to each row of sleeves 403.

[0043] A conical trash rack for the construction opening of a subaqueous rock plug blasting and its usage method, comprising the following steps:

[0044] S1. First, form an inclined hole through blasting. Measure the diameter of the blasting hole in advance and fabricate a precast copper pipe mechanism 1 of corresponding size. Install multiple groups of rib plates 102 arranged in a circular pattern inside the conical copper pipe 101, install a first transverse stiffening ring 103 at the bottom of the conical copper pipe 101, install a second transverse stiffening ring 105 at the top, and install multiple groups of longitudinally arranged longitudinal stiffening rib plates 104 on the inner side wall of the conical copper pipe 101 to form the copper pipe mechanism 1. Set a track along the mountain body, and the track extends to the blasting hole. The precast copper pipe mechanism 1 is fixed at the blasting hole by its own weight. By fixing the precast copper pipe mechanism at the blasting hole by its own weight, the support mechanism, the trash rack mechanism, and the fish screen mechanism are fixed in sequence. The conical pipe is fixed on the concrete foundation by its own weight. The trash rack is fixed on the support platform, and the support platform is fixed on the conical pipe. The fixing method of the trash rack can be welding or bolt connection, which saves underwater concrete construction, reduces the use of concrete, is beneficial to environmental protection, reduces the land occupation of the management house, and saves the land occupation investment. For daily maintenance, there is no need to overhaul and maintain the hoist, which saves manpower and financial resources. Directly use the hole formed after the rock plug blasting to install the trash rack device, eliminating the work such as pier pouring, transportation and installation of gates and embedded parts, bent frame pouring, working bridge pouring, traffic bridge pouring, procurement and installation of hoists, etc., greatly shortening the construction period and saving project investment;

[0045] S2. Through a diver's descent, weld the support base 201 to the top of the conical copper pipe 101, and weld longitudinally arranged and horizontally fixed secondary cross beams 204 and main cross beams 203 on the inner side wall of the support base 201. Weld a group of secondary beams 202 at the center position of the inner side wall of the support base 201. Weld multiple groups of inclined support plates 207 arranged obliquely at the bottom of the secondary beams 202 through prefabricated multiple groups of gusset plates 205, and make the outer ends of the inclined support plates 207 all support on the longitudinal stiffening rib plates 104;

[0046] S4. Assemble the trash rack mechanism 3 in advance on the open ground. Weld multiple groups of longitudinally arranged first grid bars 302 on the inner side wall of the first special-shaped fixing frame 301. Similarly, weld multiple groups of horizontally arranged first I-beams 303 on the inner side wall of the first special-shaped fixing frame 301. Weld multiple groups of longitudinally arranged second grid bars 305 on the inner side wall of the second special-shaped fixing frame 304. Similarly, weld multiple groups of horizontally arranged second I-beams 306 on the inner side wall of the second special-shaped fixing frame 304, thus assembling into multiple special-shaped structural forms. Then, transport the trash rack mechanism 3 to the blasting hole through the pre-installed track. Through the diver, sequentially assemble and weld the trash rack mechanism 3 on the support base 201. Adopting the special-shaped structural form and dividing it into multiple pieces is convenient for fabrication, transportation, installation, and maintenance. A trash rack, net or sill is arranged around the fish screen to prevent dirt from clogging the trash rack;

[0047] After the diver completes the installation of the trash rack mechanism 3, a plurality of support rods 402 are fixed to the secondary cross beam 204 and the main cross beam 203 by means of bolt fixing seats 401. A set of sleeves 403 are welded to the outer ends of each group of support rods 402, and a set of electrode steel pipes 404 are fixed to each row of sleeves 403, finally completing the rapid installation of the trash rack. A fish blocking electric grid is provided on the trash rack to prevent fish from escaping.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The conical pipe type trash rack for the construction opening of underwater rock plug blasting includes a copper pipe mechanism (1), a support mechanism (2), a trash screen mechanism (3) and a fish blocking electric grid mechanism (4). It is characterized in that: The copper pipe mechanism (1) is provided with a support mechanism (2), the top of the support mechanism (2) is provided with a trash screen mechanism (3), and the top of the trash screen mechanism (3) is provided with a fish blocking electric grid mechanism (4); The copper pipe mechanism (1) includes a conical copper pipe (101), rib plates (102), a first transverse stiffening ring (103), longitudinal stiffening rib plates (104) and a second transverse stiffening ring (105). A plurality of groups of uniformly annularly arranged rib plates (102) are fixedly connected inside the conical copper pipe (101), a plurality of groups of uniformly annularly arranged longitudinal stiffening rib plates (104) are fixedly connected to the inner side wall of the conical copper pipe (101), the second transverse stiffening ring (105) is fixedly connected to the top of the conical copper pipe (101), and the first transverse stiffening ring (103) is fixedly connected to the bottom of the conical copper pipe (101); The support mechanism (2) includes a support base (201), secondary beams (202), main cross beams (203), auxiliary cross beams (204), gusset plates (205), lacing bars (206) and inclined support plates (207). The support base (201) is fixedly connected to the top of the second transverse stiffening ring (105), the front and rear ends of the inner side wall of the support base (201) are fixedly connected with secondary beams (202), the left and right ends of the inner side wall of the support base (201) are fixedly connected with main cross beams (203), a group of auxiliary cross beams (204) are fixedly connected to the upper middle part and the lower middle part of the inner side wall of the support base (201), a plurality of groups of uniformly annularly arranged gusset plates (205) are fixedly connected to the outer side wall of the bottom wall of the support base (201), and a group of inclined support plates (207) are fixedly connected to each of the gusset plates (205); The trash screen mechanism (3) includes a first special-shaped fixing frame (301), first grid bars (302), first I-beams (303), a second special-shaped fixing frame (304), second grid bars (305) and second I-beams (306). A plurality of groups of uniformly longitudinally arranged first grid bars (302) are fixedly connected to the inner side wall of the first special-shaped fixing frame (301), a plurality of groups of uniformly transversely arranged first I-beams (303) are fixedly connected to the inner side wall of the first special-shaped fixing frame (301), a plurality of groups of uniformly longitudinally arranged second grid bars (305) are fixedly connected to the inner side wall of the second special-shaped fixing frame (304), and a plurality of groups of uniformly transversely arranged second I-beams (306) are fixedly connected to the inner side wall of the second special-shaped fixing frame (304).

2. The conical pipe type trash rack for the construction opening of underwater rock plug blasting according to claim 1, It is characterized in that: The fish-blocking electric fence mechanism (4) includes a bolt fixing base (401), a support rod (402), a sleeve (403) and an electrode steel pipe (404). The bolt fixing base (401) is uniformly and horizontally fixedly connected to the top of the secondary cross beam (204). A group of support rods (402) are fixedly connected to the top of each bolt fixing base (401). A group of sleeves (403) are fixedly connected to the top ends of the support rods (402). A group of electrode steel pipes (404) are fixedly connected to each row of sleeves (403).

3. The conical pipe type trash rack for the underwater rock plug blasting construction hole according to claim 1, characterized in that: The inclined support plates (207) are all fixed with an inward inclination of 30 degrees, and two groups of uniformly arranged lacing bars (206) are fixedly connected to the inclined support plates (207).

4. The conical pipe type trash rack for the underwater rock plug blasting construction hole according to claim 1, characterized in that: The first special-shaped fixing frame (301) and the second special-shaped fixing frame (304) are both fixedly connected to the top of the support seat (201) by welding.

5. The using method of the conical pipe type trash rack for the underwater rock plug blasting construction hole according to any one of claims 1 to 4, characterized in that: It includes the following steps: S1. First, form an inclined hole through blasting, measure the diameter of the blasting hole in advance, manufacture a prefabricated copper pipe mechanism (1) of corresponding size, install multiple groups of annularly arranged rib plates (102) inside the conical copper pipe (101), install a first transverse stiffening ring (103) at the bottom of the conical copper pipe (101), install a second transverse stiffening ring (105) at the top, and install multiple groups of annularly arranged longitudinal stiffening rib plates (104) on the inner side wall of the conical copper pipe (101) to form the copper pipe mechanism (1). Set a track along the mountain body, and the track extends to the blasting hole. The prefabricated copper pipe mechanism (1) is fixed at the blasting hole by its own weight; S2. Through the diver's diving, weld the support seat (201) to the top of the conical copper pipe (101), and weld the longitudinally arranged and horizontally fixed secondary cross beam (204) and main cross beam (203) on the inner side wall of the support seat (201). Weld a group of secondary beams (202) at the central position of the inner side wall of the support seat (201). Weld multiple groups of inclined support plates (207) arranged obliquely to the bottom of the secondary beam (202) through multiple prefabricated gusset plates (205), and make the outer ends of the inclined support plates (207) all support on the longitudinal stiffening rib plates (104); S4. Assemble the trash rack mechanism (3) in advance on the open ground. Weld multiple groups of longitudinally arranged first grid bars (302) on the inner side wall of the first special-shaped fixing frame (301). Similarly, weld multiple groups of transversely arranged first I-beams (303) on the inner side wall of the first special-shaped fixing frame (301). Weld multiple groups of longitudinally arranged second grid bars (305) on the inner side wall of the second special-shaped fixing frame (304). Similarly, weld multiple groups of transversely arranged second I-beams (306) on the inner side wall of the second special-shaped fixing frame (304), thereby assembling multiple special-shaped structural forms. Then, convey the trash rack mechanism (3) to the blasting port through the pre-installed track, and the divers sequentially assemble and weld the trash rack mechanism (3) on the support base (201). S5. After the divers complete the installation of the trash rack mechanism (3), use the bolt fixing seat (401) to fix multiple groups of support rods (402) on the secondary cross beam (204) and the main cross beam (203). A set of sleeves (403) are welded to the outer ends of each group of support rods (402), and a set of electrode steel pipes (404) are fixed to each row of sleeves (403), finally completing the rapid installation of the trash rack.

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