Fishway exit gate structure and mounting method thereof

By setting up parallel working gates and emergency gates at the fishway exit, combined with real-time monitoring and reinforcement measures, the problem of fishway downtime during maintenance was solved, the anti-disturbance capability of the track embedded parts and the operational stability of the gates were improved, and the continuous operation and maintenance efficiency of the fishway were achieved.

CN121827284APending Publication Date: 2026-04-10HUADIAN JINSHAJIANG UPSTREAM HYDROPOWER DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-06
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing fishway outlet gate has problems such as fishway shutdown during maintenance, easy impact of concrete pouring on the embedded parts of the track, and poor gate operation stability, resulting in poor maintenance flexibility and high cost.

Method used

Design a fishway outlet gate structure, which uses two parallel gate slots equipped with a working gate and an emergency gate respectively, in conjunction with a maintenance channel to monitor the status of embedded parts in real time. The track embedded parts are reinforced by positioning parts and side wall templates, and rollers are used to reduce friction to ensure the installation accuracy and stability of the track.

Benefits of technology

This enabled the fishway to operate continuously during maintenance, improved the anti-disturbance capability of the track pre-embedded parts and the operational stability of the gate, reduced maintenance time and costs, and improved fish migration efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of gate installation, and discloses a fishway exit gate structure. The service gate and the emergency gate are arranged to work cooperatively, the maintenance time can be effectively controlled, continuous operation of the upstream fishway during maintenance is achieved, and convenience and operation efficiency of gate maintenance are remarkably improved. Through the three-point limiting design of the track embedded part, all sections of the embedded part form mutual constraint, the capacity of resisting concrete pouring disturbance of the embedded part is enhanced, the influence on bending deformation of the embedded part in the concrete construction process is reduced, and the state of the embedded part can be monitored in real time. Through dynamic monitoring of each track embedded part, abnormity can be recognized in time, intervention measures can be taken, and the installation firmness, levelness and position precision of the embedded parts after concrete is solidified are ensured, so that the track installation perpendicularity is improved, and the stability and smoothness of gate operation are ensured.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gate installation, in particular to a fishway outlet gate structure and a method for installing the same. BACKGROUND

[0002] A fishway is a key water conservancy facility connecting the upstream and downstream water areas of a river to ensure fish migration and reproduction. The gate structure at the outlet of the fishway directly affects the operation stability of the fishway, the fish passing efficiency, and the flood control safety of the water conservancy project. The fishway outlet is usually provided with a gate to realize the opening and closing control of the fishway and meet the operation requirements of water conservancy scheduling, maintenance, and the like.

[0003] The existing fishway outlet gate is mostly designed with a single gate. This design has obvious defects. When the gate needs to be maintained and repaired due to failure, the corresponding river area of the fishway must be closed and cleaned, resulting in complete shutdown of the fishway. This not only seriously affects the normal migration of fish, but also makes the gate maintenance operation inflexible and costly, and greatly prolongs the maintenance period.

[0004] Meanwhile, during the installation and construction of the gate, the installation accuracy of the track embedded part directly determines the subsequent track assembly quality and the operation stability of the gate. In the traditional construction, the steel reinforcement framework and the track embedded part are first bound and tied when the support wall is built, then the side wall formwork is supported, and finally the concrete is poured and allowed to set. During the concrete pouring process, the external disturbance caused by the vibration of the vibrating rod and the flow of the concrete easily leads to the positional deviation and bending deformation of the embedded part, and it is difficult to monitor the state change of the embedded part in real time. After the concrete is solidified, the positional accuracy, levelness, and firmness of the embedded part cannot meet the design requirements, which further leads to the verticality deviation of the subsequent track installation, and the gate is prone to jamming and wear during the lifting process, thereby seriously affecting the smoothness and stability of the gate operation and reducing the overall operation reliability of the water conservancy project.

[0005] In view of the above technical problems, it is urgent to design a fishway outlet gate structure and a method for installing the same, which can realize the continuous operation of the fishway during maintenance, improve the installation accuracy and monitoring capability of the track embedded part, and ensure the stable operation of the gate. SUMMARY

[0006] The present application aims to solve the problems of fishway shutdown during maintenance of the existing fishway outlet gate, the influence of the track embedded part on the concrete pouring disturbance, and the poor operation stability of the gate. The present application provides a fishway outlet gate structure and a method for installing the same, realizes the continuous operation of the upstream fishway during maintenance, enhances the anti-disturbance capability of the track embedded part, monitors the state of the embedded part in real time, and ensures the smooth and stable operation of the gate.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a fishway outlet gate structure, comprising: Gate slots, which are arranged in parallel in the fishway and are formed by a plurality of support walls poured and formed at the outlet of the fishway; Tracks, which are vertically arranged at corresponding positions in the gate slots; Positioning members; Track embedded parts, which are embedded in the poured support walls and are reinforced by the positioning members and the side wall formworks; Tower bodies, which are arranged above the corresponding support walls on the ground and correspond to the gate slots, and have hoisting machines arranged therein; Gates, the lifting parts of which are connected to the top of the gates and control the gates to rise and fall along the tracks to control the opening and closing of the gate slots.

[0008] Further, the gate slots are two and arranged in parallel, one of the gate slots corresponds to a working gate for daily use, and the other of the gate slots corresponds to an emergency gate; a maintenance passage is reserved between the two gate slots in the fishway.

[0009] Further, a rotating shaft is horizontally arranged on the gate, the two ends of the rotating shaft extend to the outside of the gate, and symmetrical rollers are arranged at the two ends; the rollers slide along the tracks.

[0010] Further, the track embedded part includes a straight section and a curved section connected to each other, and the straight section is provided with a positioning block and a marking belt, and the positioning block is located between the marking belt and the curved section.

[0011] Further, the marking belt includes a first marking belt and a second marking belt, and the second marking belt is located between the first marking belt and the positioning block.

[0012] Further, two insertion holes two are symmetrically arranged at the top of the side wall formwork for inserting the positioning members, and a plurality of positioning holes one are arranged below the corresponding insertion holes two on the side wall formwork for inserting the track embedded parts.

[0013] Further, the positioning member includes an L-shaped frame, a retaining frame, a positioning bolt, a sliding block, a color sensor, and a positioning nut, and the L-shaped frame includes a short shaft part and a long shaft part; The long shaft part is provided with an insertion hole three at the top, the sliding block is provided with an insertion hole one, the insertion hole one corresponds to the insertion hole two on the side wall formwork, and the positioning bolt passes through the insertion hole one and is locked and fixed by the positioning nut to vertically fix the L-shaped frame on the top of the side wall formwork. The long axis part is arranged with a plurality of positioning holes two below the corresponding socket three, the positioning holes two correspond to the positioning holes one on the side wall formwork, and the holder is provided with positioning holes three; the straight section of the track embedded part is inserted until the positioning block is attached to the side wall formwork; the color sensor is located on the holder and corresponds to the holder one by one, and is used for detecting the change of the mark tape.

[0014] Further, the tower body comprises a lifting layer and a control layer, the control layer is located above the lifting layer, the lifting layer covers above the gate slot, and the hoist is arranged in the control layer.

[0015] Further, when the steel reinforcement framework of the support wall is bound, the curved section of the track embedded part is bound on the steel reinforcement framework of the support wall.

[0016] A method for installing a fishway outlet gate structure, the method comprises: Step S1, binding the steel reinforcement framework, the side wall formwork, installing the track embedded part and the positioning part at the corresponding position in the fishway, and pouring the concrete to form the support wall, and a plurality of support walls are enclosed to form a gate slot; Step S2: building a tower above the support wall; Step S3: the installation holes on both sides of the track correspond to the track embedded part one by one, and are fixed; Step S4, connecting the hoist and the top of the valve, and the rollers on both sides of the valve are aligned with the track.

[0017] Compared with the prior art, the beneficial effects of the present application are: 1. Realize the continuous operation of the fishway during maintenance: by arranging two parallel gate slots, respectively equipped with working gate and emergency gate, cooperating with the maintenance channel between the two, when the working gate needs to be maintained, the emergency gate is closed to block the water flow, the maintenance personnel pass through the maintenance channel to maintain the working gate, the upstream fishway does not need to stop running, effectively controls the maintenance time, significantly improves the convenience and efficiency of gate maintenance, and guarantees the normal migration of fish.

[0018] 2. Enhance the anti-disturbance ability of the track embedded part: by the cooperation of the positioning part and the side wall formwork, the track embedded part is formed three-point limiting reinforcement, so that each section of the embedded part is mutually constrained, the ability to resist the vibration disturbance and the flow impact of the embedded part during the pouring process is greatly improved, the risk of bending deformation and position deviation of the embedded part is reduced, and the subsequent track installation precision is guaranteed.

[0019] 3. Real-time monitoring of embedded part state, timely intervention of abnormality: by setting a color sensor on the retainer, cooperating with the double-color marking tape on the track embedded part, the position and deformation state of the embedded part can be monitored in real time. If there is an abnormality during the concrete pouring process, it can be identified in time and take intervention measures such as adjusting the positioning part, reinforcing the embedded part, etc., to ensure the installation firmness, levelness and position accuracy of the embedded part after the concrete solidification, and further improve the verticality of the track installation.

[0020] 4. Improve the stability and smoothness of the gate operation: the gate is assembled with rollers through the rotating shaft and rolls along the track, which converts sliding friction into rolling friction and reduces the running resistance; at the same time, the installation accuracy of the track is guaranteed, avoiding the problems of jamming and wear during the lifting of the gate, significantly improving the stability, smoothness and service life of the gate operation.

[0021] 5. Reasonable structure design, convenient construction: the track embedded part adopts an integrated structure of straight section and curved section, the curved section is welded to the steel reinforcement framework, and the precise positioning is realized by cooperating with the positioning block, the installation process is simple; the tower body adopts a four-layer structure design, which takes into account the gate installation, power transmission and operation control, and improves the overall construction and operation convenience. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a side view of one gate slot in the present application; Figure 2 is a side view of two gate slots arranged side by side in the present application; Figure 3 is a top view of a support wall in the present application; Figure 4 is a side view of a support wall in the present application; Figure 5 is a side view of an emergency gate in the present application; Figure 6 is a schematic diagram of the connection between the positioning part and the side wall formwork in the present application; Figure 7 is a sectional view of Figure 6 ; Figure 8 is an exploded view of the positioning part and the side wall formwork in the present application; Figure 9 is an enlarged view of Figure 8 A in the present application; In the figure: 1, gate slot; 2, fishway; 3, track; 4, positioning member; 5, track embedded part; 6, support wall; 7, tower body; 8, hoist; 9, working gate; 10, emergency gate; 11, maintenance access; 12, L-shaped frame; 13, rotating shaft; 14, roller; 15, jack 2; 16, side wall formwork; 17, jack 1; 19, jack 3; 20, positioning hole 1; 21, positioning hole 2; 22, positioning hole 3; 23, retainer; 24, positioning bolt; 25, sliding block; 26, color sensor; 27, positioning nut; 28, steel reinforcement cage; 50, straight section; 51, curved section; 52, positioning block; 53, first marking tape; 54, second marking tape; 121, short shaft part; 122, long shaft part. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0024] Reference Figures 1-9 The present application provides a technical solution: a fishway outlet gate structure, comprising: The gate slot 1 is arranged in parallel in the fishway 2 and is formed by a plurality of support walls 6 poured and formed at the outlet of the fishway 2; The track 3 is vertically arranged at a corresponding position in the gate slot 1; The positioning member 4; The track embedded part 5 is embedded in the poured support wall 6, and the positioning member 4 and the side wall formwork 16 cooperate to reinforce the track embedded part 5; The tower body 7 is arranged above the corresponding support wall 6 on the ground and corresponds to the gate slot 1, and the hoist 8 is arranged in the tower body 7; The gate, the lifting part of the hoist 8 is connected with the top of the gate, and controls the gate to rise and fall along the gate slot 1 to control the opening and closing of the gate slot 1.

[0025] In one embodiment, Figures 1-2The gate slot 1 is provided with two, one of which is a working gate 9 corresponding to the gate slot 1, which is used for daily use; the other is an emergency gate 10 corresponding to the gate slot 1, which is used when the working gate 9 is damaged; a maintenance channel 11 is reserved between the corresponding two gate slots 1 in the fishway 2. Among them, the emergency gate 10 is close to the upstream of the fishway 2, and the working gate 9 is close to the downstream of the fishway 2; under normal working conditions, the emergency gate 10 is always open; when the working gate 9 is damaged, the emergency gate 10 is closed to isolate the upstream water source; the working gate 9 can be lifted into the tower body 7 for maintenance, or the maintenance channel 11 can be entered for maintenance; by controlling the maintenance time, the operation of the fishway 2 upstream can not be affected during the maintenance process, and the convenience and efficiency of gate maintenance are improved.

[0026] In one embodiment, Figure 5 A rotating shaft 13 is horizontally arranged on the gate; the two ends of the rotating shaft 13 extend to the outside of the gate, and symmetrical rollers 14 are arranged at the two ends; the rollers 14 slide along the track 3.

[0027] In one embodiment, Figures 6-7 The track embedded part 5 includes a straight section 50 and a curved section 51 connected to each other, and the straight section 50 is provided with a positioning block 52 and a marking belt, and the positioning block 52 is located between the marking belt and the curved section 51.

[0028] In one embodiment, Figure 9 The marking belt includes a first marking belt 53 and a second marking belt 54 with different colors, and the second marking belt 54 is located between the first marking belt 53 and the positioning block 52.

[0029] In one embodiment, Figures 6-9 Two insertion holes two 15 are symmetrically arranged at the top of the side wall formwork 16, which are used for inserting the positioning member 4, and a plurality of positioning holes one 20 are arranged below the corresponding insertion holes two 15 on the side wall formwork 16, which are used for inserting the track embedded part 5.

[0030] The positioning member 4 includes an L-shaped bracket 12, a retaining bracket 23, a positioning bolt 24, a sliding block 25, a color sensor 26 and a positioning nut 27, and the L-shaped bracket 12 includes a short shaft part 121 and a long shaft part 122; The long shaft part 122 is provided with an insertion hole three 19 at the top, and the sliding block 25 is provided with an insertion hole one 17, which corresponds to the insertion hole two 15 on the side wall formwork 16 and is used for the positioning bolt 24 to pass through, and is locked and fixed by the positioning nut 27, so as to vertically fix the L-shaped bracket 12 on the top of the side wall formwork; The long shaft portion 122 has several positioning holes 21 arranged below the corresponding insertion holes 19. The positioning holes 21 correspond to the positioning holes 20 on the side wall template 16. The retainer 23 is provided with positioning holes 22. These are used to insert the straight section 50 of the track pre-embedded part 5 until the positioning block 52 is in contact with the side wall template 16. The color sensor 26 is located on the retainer 23 and corresponds to the retainer 23 one by one. It is used to detect changes in the marking strip.

[0031] The tower body 7 includes a lifting layer and a control layer. The control layer is located above the lifting layer and covers the gate slot 1. The hoist 8 is located inside the control layer.

[0032] When binding the steel reinforcement frame 28 of the support wall 6, the bent section 51 of the track pre-embedded part 5 is bound to the steel reinforcement frame 28 of the support wall 6.

[0033] A method for installing a fishway outlet gate structure, the method comprising: Step S1: Tie the steel reinforcement skeleton 28 and the side wall formwork 16 at the corresponding locations in the fishway 2; install the track embedded parts 5 and the positioning parts 4; pour concrete to form the support wall 6, which forms the gate groove 1; the positioning parts 4 are used to ensure that the position deviation of the track embedded parts 5 after pouring is ≤3mm and the verticality deviation is ≤1mm / m; remove the positioning parts 4 and the side wall formwork. Step S11: Tie the steel reinforcement frame 28 at the corresponding position in the fishway 2, and tie the curved sections 51 of several track pre-embedded parts 5 one by one to the corresponding position on the steel reinforcement frame 28. The straight section 50 of the track pre-embedded parts 5 extends to the outside of the steel reinforcement frame 28. Step S12: The hoisting device erects a side wall template 16 into the fishway, and manually assists in connecting several positioning holes 20 on the side wall template 16 with the straight sections 50 of several track pre-embedded parts 5 one by one. Take the first L-shaped frame 12 and insert its positioning hole 21 into several track embedded parts 5 in the same row one by one until the track embedded parts 5 are inserted into the positioning hole 22 of the retainer 23 and the positioning block 52 is in contact with the side wall template 16; take the first positioning bolt 24 and pass it through the insertion hole 17 of the slider 25, the insertion hole 15 of the side wall template 16, the insertion hole 19 of the L-shaped frame 12 and the positioning nut 27, and tighten the positioning nut 27 to complete the installation of the first L-shaped frame 12 on the side wall template 16; similarly, install the second L-shaped frame 12 on the side wall template 16; use the formwork support mechanism to complete the work of supporting the side wall template 16 (this is existing technology and is not shown in the figure. The installation position of the formwork support mechanism has no effect on the position of the L-shaped frame 12), so that the position of the side wall template 16 is fixed; An external thread is provided at the end of the straight section 50 away from the curved section 51. The marking tape is located between the external thread and the positioning block 52, and is used for subsequent use with a nut to fix the track 3. The straight section 50 is coated with a circumferential marking tape, which includes a first marking tape 53 and a second marking tape 54. The first marking tape 53 is red and the second marking tape is blue. At this time, the first marking tape 53 is located inside the retainer 23. The retainer 23 is equipped with a color sensor 26, which is used to collect the color of its corresponding marking tape. At this time, the color sensor 26 collects the result and displays the second marking tape 54, which means that the installation position of the track pre-embedded part 5 is qualified. The color sensor 26 is an RGB sensor.

[0034] After the formwork is completed at the corresponding locations within the fishway 2 in step S13, concrete pouring is carried out. During the concrete pouring process, the binding of the curved section 51 of the track pre-embedded part 5 and the positioning hole 21 fix the track pre-embedded part 5 at two points. If the binding of the curved section 51 becomes loose, when the curved section 51 is disturbed by the external force of the concrete, the positioning hole 3 22 and the positioning hole 2 21 work together to fix the straight section 50 of the track pre-embedded part 5 at two points. After the straight section 50 is stabilized, the stability of the curved section 51 can be enhanced. By limiting the three points of the track pre-embedded part 5, the different sections of the track pre-embedded part 5 restrain each other, increase the force to resist the interference of the concrete, reduce the influence of the concrete pouring on the curvature of the track pre-embedded part 5, ensure the straightness of the track pre-embedded part 5, and thus improve the overall positional stability of the track pre-embedded part 5. Moreover, the L-shaped frame 12 and the retainer 23 protect the reserved part of the track pre-embedded part 5 to prevent the track pre-embedded part 5 from bending due to accidental contact during construction, which would affect the subsequent construction of the track 3.

[0035] Because the side wall formwork 16 is fixed and the positioning block 52 is fixedly connected to the track embedded part 5, the concrete interference under the interception of the positioning block 52 cannot cause the track embedded part 5 to move outward; if the concrete pouring interference causes the track embedded part 5 to move inward, it will drive the first marking strip 53 and the second marking strip 54 to move inward synchronously; the color sensor 26 monitors the status of the marking strip in real time, and then detects the status of the track embedded part 5 in real time; real-time monitoring of the status of each track embedded part 5 also facilitates timely detection of problematic track embedded parts 5 and intervention, improving the firmness, levelness and positional accuracy of the track embedded parts 5 after the concrete has solidified; after the concrete has solidified, the side wall formwork 16 and the positioning part 4 are removed; the side wall formwork 16 and the positioning part 4 can be reused; Step S2: Construct the tower body 7 above the supporting wall 6; Step S3: Align the mounting holes on both sides of the track 3 with the track pre-embedded parts 5 one by one, and install and fix them; use a laser level to re-measure the straightness of the track 3, and use a jack to fine-tune it until the deviation is ≤2mm; the higher the installation quality of the track pre-embedded parts 5, the more it can improve the verticality of the track 3 installation, thus improving the flow rate of the valve operation.

[0036] Step S4: A tower body 7 is constructed on the ground; the tower body 7 has two layers, the first floor above ground is the lifting layer, and the second floor above ground is the control layer, and the control layer is equipped with a hoist 8; Inside the lifting layer, the assembled valve is hoisted to the top of the support frame using a hoisting device. The rollers 14 on both sides of the valve are aligned with the rail 3. The valve is slowly lowered along the rail 3, and the contact status between the rollers 14 and the rail 3 is monitored to prevent jamming. The lifting part of the hoist 8 is connected to the lifting lug of the valve to control the opening and closing of the valve and to remove the hoisting device; Valve opening and closing operation tests are conducted, including airtightness tests in dry water, still water, and flowing water. The valve is equipped with a sealing element that mates with the valve groove to improve the sealing effect when the valve is closed, preventing leakage from affecting the normal migration of fish.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0038] It should be noted that if the embodiments of the invention involve directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, "several" refers to two or more.

[0040] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. A fishway outlet gate structure, characterized in that, include: Gate slots (1) are arranged in parallel within the fish passage (2). The gate slots (1) are formed by several supporting walls (6) cast in place at the outlet of the fish passage (2). The track (3) is vertically installed in the gate slot (1) at a corresponding preset position to provide guidance for the gate to rise and fall; The positioning component (4) is used to reinforce and limit the pre-embedded parts (5) of the track; The track embedded part (5) is embedded in the cast-in-place support wall (6). The positioning part (4) cooperates with the side wall template (16) to reinforce and limit the track embedded part (5), so that each section of the embedded part forms mutual constraint. The tower body (7) is set on the ground above the corresponding support wall (6), corresponding one-to-one with the gate slot (1), and is equipped with a hoist (8) to provide power for the gate to lift and lower; The gate, the lifting component of the hoist (8) is connected to the top of the gate, and is used to drive the gate to rise and fall along the track (3) to realize the opening and closing control of the gate slot (1), thereby adjusting the opening and closing of the fish passage (2).

2. The fishway outlet gate structure according to claim 1, characterized in that, The gate slot (1) is provided in two parallel configurations. One gate slot (1) corresponds to a working gate (9), and the other gate slot (1) corresponds to an emergency gate (10). A maintenance passage (11) is reserved between the two gate slots (1) in the fishway (2).

3. The fishway outlet gate structure according to claim 2, characterized in that, A rotating shaft (13) is horizontally inserted through the gate. Both ends of the rotating shaft (13) extend to the outside of the gate, and rollers (14) are symmetrically mounted at both ends. The rollers (14) slide along the track (3).

4. The fishway outlet gate structure according to claim 2, characterized in that, The track pre-embedded part (5) includes a straight section (50) and a curved section (51) that are integrally connected. A positioning block (52) and a marking strip are fixed on the straight section (50). The positioning block (52) is arranged between the marking strip and the curved section (51).

5. The fishway outlet gate structure according to claim 4, characterized in that, The marking band includes a first marking band (53) and a second marking band (54) of different colors, with the second marking band (54) located between the first marking band (53) and the positioning block (52).

6. The fishway outlet gate structure according to claim 5, characterized in that, The top of the side wall template (16) is symmetrically provided with two insertion holes (15) for inserting positioning parts (4). The side wall template (16) is provided with several positioning holes (20) arranged below the corresponding insertion holes (15) for inserting track embedded parts (5).

7. The fishway outlet gate structure according to claim 6, characterized in that, The positioning component (4) includes an L-shaped frame (12), a retainer (23), a positioning bolt (24), a slider (25), a color sensor (26), and a positioning nut (27). The L-shaped frame (12) includes a short shaft portion (121) and a long shaft portion (122). The top of the long shaft part (122) is provided with a third insertion hole (19), and the slider (25) is provided with a first insertion hole (17). The first insertion hole (17) corresponds to the second insertion hole (15) on the side wall template (16) and is used for the positioning bolt (24) to pass through and is locked and fixed with a positioning nut (27) to vertically fix the L-shaped frame (12) on the top of the side wall template. The long shaft portion (122) has several positioning holes (21) arranged below the corresponding insertion hole three (19). The positioning holes two (21) correspond to the positioning holes one (20) on the side wall template (16). The retainer (23) is provided with positioning holes three (22); for the straight section (50) of the track pre-embedded part (5) to be inserted until the positioning block (52) is in contact with the side wall template (16); the color sensor (26) is located on the retainer (23) and corresponds one-to-one with the retainer (23), for detecting changes in the marking strip.

8. The fishway outlet gate structure according to claim 1, characterized in that, The tower body (7) includes a lifting layer and a control layer. The control layer is located above the lifting layer and covers the gate slot (1). The hoist (8) is located inside the control layer.

9. The fishway outlet gate structure according to claim 4, characterized in that, When binding the steel reinforcement frame (28) of the support wall (6), the curved section (51) of the track pre-embedded part (5) is welded to the steel reinforcement frame (28) of the support wall (6).

10. A method for installing a fishway outlet gate structure, used in any one of claims 1-9, characterized in that, The method includes: Step S1: Tie the steel reinforcement skeleton (28), support the side wall formwork (16), install the track embedded parts (5) and positioning parts (4) in the corresponding place in the fish passage (2), and pour concrete to form a support wall (6). Several support walls (6) are enclosed to form a gate slot (1). Step S2: Construct the tower body (7) above the supporting wall (6); Step S3: Align the mounting holes on both sides of the track (3) with the embedded parts (5) of the track one by one, and install and fix them; Step S4: Connect the hoist (8) and the top of the valve, and align the rollers (14) on both sides of the valve with the rail (3).