Rectangular channel sluice gate
The design of prefabricated rectangular channel gates solved the problems of tight construction schedules and winter construction, achieving rapid installation and high-quality construction results.
Patent Information
- Application Number
- CN202521018472.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-21
- Estimated Expiration
- 2035-05-22
AI Technical Summary
The lack of a prefabricated assembly construction scheme for rectangular channel gates resulted in a tight construction schedule and significant construction difficulties in the northern winter environment, affecting construction quality and efficiency.
Design a rectangular channel gate, including a concrete gate chamber, crossbeams, gate leaf, screw rod, opening and closing device, bottom sill, bottom track, node plate and top track. It is prefabricated in the factory, and only assembly and backfilling are required on site, which simplifies the construction process and avoids concrete construction in winter.
This technology enables the rapid installation of rectangular channel gates during the northern winter, reducing construction difficulty and resource pressure while improving construction efficiency and quality.
Smart Images

Figure CN224148645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of farmland and water conservancy construction technology, specifically to a rectangular channel gate. Background Technology
[0002] A rectangular channel gate is a facility that includes a gate and is used for water flow guidance and diversion. Traditional construction of the gate chamber requires on-site processes such as earthwork excavation, foundation layer construction, rebar tying, formwork erection, concrete pouring, curing, formwork removal, and backfilling. The gate is then installed after the gate chamber construction is complete. Traditional methods have high requirements for construction site conditions, necessitating consideration of drainage and temporary roads, and all materials must be transported to the site. A second concrete pour is also required after the gate is installed. In Northeast China, farmland irrigation projects typically begin construction after crop harvest; otherwise, crop planting will be affected. The construction period is short, and low winter temperatures make it difficult to prevent concrete frost damage using conventional methods, thus posing a significant challenge to ensuring construction quality. Furthermore, completing large-scale construction in a short time requires substantial manpower and material resources, placing considerable pressure on resources. Prefabricated assembly technology offers advantages such as standardized design, factory production, and on-site assembly. It can be installed in winter, with only assembly work on-site, resulting in rapid installation and immediate usability. This effectively solves the aforementioned construction difficulties.
[0003] In summary, there is currently a lack of a prefabricated assembly scheme for the construction of rectangular channel sluice gates to cope with tight construction schedules and the harsh winter environment in northern regions. Utility Model Content
[0004] The purpose of this utility model patent is to solve the problem of the lack of a prefabricated assembly scheme for the construction of rectangular channel sluice gates, in order to cope with the tight construction period and the harsh winter environment in the north. This utility model provides a rectangular channel sluice gate.
[0005] The purpose of this utility model is achieved as follows: a rectangular channel gate, which includes a concrete gate chamber, a crossbeam, a door leaf, a screw rod, an opening and closing device, a bottom sill, two bottom rails, two node plates and two top rails;
[0006] The top of the concrete gate chamber is open, the flow channel of the concrete gate chamber is through the front and back, and any side wall of the concrete gate chamber is provided with an upward-opening gate. The bottom sill is embedded in the bottom of the gate of the concrete gate chamber. Two bottom rails are symmetrically fixed on the upper part of the bottom sill and the bottom rails are embedded in the gate of the concrete gate chamber. The bottom of each top rail is fixedly connected to a node plate. The node plate is detachably connected to the adjacent end face of the concrete gate chamber, and each bottom rail is correspondingly set with one top rail.
[0007] The two top tracks are connected by a crossbeam. The door leaf is set between the two bottom tracks and the two top tracks and is slidably connected to them. A screw is fixed at the top center of the door leaf. The top of the screw passes through the crossbeam and is threadedly connected to the opening and closing device, which is located above the crossbeam.
[0008] Furthermore, the top track is welded to the node plate.
[0009] Furthermore, the node plate is connected to the concrete gate chamber by bolts.
[0010] Furthermore, multiple connection holes are provided on the outside of the concrete gatehouse.
[0011] Furthermore, the front and rear ends of the flow channel of the concrete gate chamber are provided with U-shaped grooves arranged on the concrete gate chamber along the contour of the flow channel.
[0012] Furthermore, the bottom of the flow channel of the concrete gate chamber is chamfered on both the left and right sides.
[0013] Furthermore, the door leaf is made of welded steel profiles.
[0014] Furthermore, the crossbeams, door panels, screws, opening and closing devices, sills, two bottom rails, two node plates, and two top rails are all treated with anti-corrosion measures.
[0015] A U-shaped waterstop strip is fixed to the water-facing surface of the door leaf between the crossbeam, the two top rails, the two bottom rails, and the water-facing surface of the door leaf. A wedge block is provided between the two bottom rails and the water-repellent surface of the door leaf.
[0016] Beneficial effects: When using this method for construction, the earthwork is first excavated and the foundation layer is treated. Then, the concrete gate chamber is installed and the prefabricated components of the connected rectangular channels are connected. Finally, the valve is assembled by installing the gate leaf, screw rod, and opening and closing equipment according to the installation requirements. The earthwork is then backfilled to complete the entire process. This reduces the disadvantages of traditional processes, such as the large number of types of materials to be transported, complicated procedures, and long construction time. All manufacturing processes are completed in the factory. During installation, only the concrete gate chamber and the valve components such as the gate leaf, screw rod, and opening and closing equipment are transported. This avoids the problem of winter construction of concrete in northern regions. The installation procedure is simple, which can greatly improve efficiency, reduce construction difficulty, and ensure construction quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a rectangular channel gate being closed.
[0018] Figure 2 This is a schematic diagram of a rectangular channel gate opening.
[0019] Figure 3 This is a schematic diagram of the connection between the bottom track and the door panel;
[0020] In the diagram: 1. Concrete gate chamber; 2. Bottom track; 3. Crossbeam; 4. Node plate; 5. Door leaf; 6. Screw; 7. Opening and closing device; 8. Connecting hole; 9. U-shaped groove; 11. Bottom sill; 12. Top track; 13. Bolt; 14. Waterstop strip; 15. Wedge block. Detailed Implementation
[0021] Specific implementation method 1: A rectangular channel gate, which includes a concrete gate chamber 1, a crossbeam 3, a door leaf 5, a screw rod 6, an opening and closing device 7, a bottom sill 11, two bottom rails 2, two node plates 4 and two top rails 12;
[0022] The top of the concrete gate chamber 1 is open, and the flow channel of the concrete gate chamber 1 is continuous from front to back. Any side wall of the concrete gate chamber 1 is provided with an upward-opening gate. A bottom sill 11 is embedded in the bottom of the gate opening of the concrete gate chamber 1. Two bottom rails 2 are symmetrically fixed to the upper part of the bottom sill 11 and are embedded in the gate opening of the concrete gate chamber 1. The bottom of each top rail 12 is fixedly connected to a node plate 4. The node plate 4 is detachably connected to the adjacent end face of the concrete gate chamber 1, and each bottom rail 2 is correspondingly provided with one top rail 12.
[0023] The top of the two top rails 12 are connected by a crossbeam 3. The door leaf 5 is set between the two bottom rails 2 and the two top rails 12 and is slidably connected to them. The screw 6 is fixed at the top center of the door leaf 5. The top of the screw 6 passes through the crossbeam 3 and is threadedly connected to the opening and closing device 7, which is located above the crossbeam 3.
[0024] In this embodiment: During installation, first excavate the earthwork and treat the foundation layer, then install the concrete gate chamber. The sill and bottom rail are pre-embedded in the concrete gate chamber. The crossbeam, door leaf, screw rod, opening and closing equipment, two node plates and two top rails can be assembled and installed. After backfilling the earthwork, the entire gate installation can be completed.
[0025] Optionally, the opening and closing device in this solution can be a manual device or an electric device. Optionally, the manual device is equipped with a manually operated rotary wheel, and the electric device is equipped with an electrically operated opening and closing device.
[0026] Other implementation methods are the same as those in Specific Implementation Method 1.
[0027] Specific implementation method 2: A rectangular channel gate, wherein the top track 12 is welded to the node plate 4.
[0028] In this embodiment, the top track is welded to the node plate, making the operation simple and easy.
[0029] Other implementation methods are the same as those in Specific Implementation Method 1.
[0030] Specific implementation method three: A rectangular channel gate, wherein the node plate 4 is connected to the concrete gate chamber 1 by bolts 13.
[0031] In this embodiment, the node plate is connected to the concrete gate chamber by bolts, which is simple and easy to operate.
[0032] Other implementation methods are the same as those in Specific Implementation Method 1.
[0033] Specific implementation method four: A rectangular channel gate, with multiple connecting holes 8 on the outside of the concrete gate chamber 1.
[0034] In this embodiment: the connecting hole is used to connect the rectangular channel component. When the gate chamber of this scheme is connected to other prefabricated rectangular channel components, the gate chamber can be connected to other prefabricated rectangular channel components through the connector.
[0035] Other implementation methods are the same as those in Specific Implementation Method 1.
[0036] Specific implementation method five: A rectangular channel gate, wherein the front and rear ends of the flow channel of the concrete gate chamber 1 are provided with U-shaped grooves 9 arranged on the concrete gate chamber 1 along the contour of the flow channel.
[0037] In this embodiment: the groove is used to install a sealing strip, which can be used for sealing when the concrete gate chamber of this scheme is connected with other precast rectangular channel components.
[0038] Other implementation methods are the same as those in Specific Implementation Method 1.
[0039] Specific implementation method six: A rectangular channel gate, wherein the bottom of the concrete gate chamber 1 is provided with chamfers on the left and right sides.
[0040] In this embodiment, the bottom of the flow channel of the concrete gate chamber 1 is provided with chamfers on the left and right sides to facilitate demolding during production.
[0041] Other implementation methods are the same as those in Specific Implementation Method 1.
[0042] Specific implementation method seven: A rectangular channel gate, wherein the gate leaf 5 is made of welded steel profiles.
[0043] Other implementation methods are the same as those in Specific Implementation Method 1.
[0044] Specific implementation method eight: A rectangular channel gate, wherein the crossbeam 3, door leaf 5, screw 6, opening and closing device 7, bottom sill 11, two bottom rails 2, two node plates 4 and two top rails 12 are all treated with anti-corrosion.
[0045] In this embodiment, the crossbeam, door leaf, screw, opening and closing device, bottom sill, two main rails, two node plates and two top rails are all treated with anti-corrosion to ensure service life.
[0046] Other implementation methods are the same as those in Specific Implementation Method 1.
[0047] Specific implementation method eight: A rectangular channel gate, wherein a U-shaped waterstop strip 14 is fixed on the water-facing side of the gate 5 between the crossbeam 3, the two top rails 12 and the two bottom rails 2 and the water-facing side of the gate 5, and a wedge block 15 is provided between the two bottom rails 2 and the water-repellent side of the gate 5.
[0048] Other implementation methods are the same as those in Specific Implementation Method 1.
Claims
1. A rectangular channel sluice gate characterized by: It includes a concrete gate chamber (1), a crossbeam (3), a door leaf (5), a screw (6), a gate opening and closing device (7), a bottom sill (11), two bottom rails (2), two node plates (4) and two top rails (12); The top of the concrete gate chamber (1) is open, the flow channel of the concrete gate chamber (1) is through, and any side wall of the concrete gate chamber (1) is provided with an upward-opening gate. The bottom sill (11) is embedded in the bottom of the gate of the concrete gate chamber (1). Two bottom rails (2) are symmetrically fixed on the upper part of the bottom sill (11) and the bottom rails (2) are embedded in the gate of the concrete gate chamber (1). The bottom of each top rail (12) is fixedly connected to a node plate (4). The node plate (4) is detachably connected to the adjacent end face of the concrete gate chamber (1), and each bottom rail (2) is correspondingly provided with a top rail (12). The top of the two top rails (12) are connected by a crossbeam (3). The door leaf (5) is set between the two bottom rails (2) and the two top rails (12) and is slidably connected to them. The screw (6) is fixed at the top center of the door leaf (5). The top of the screw (6) passes through the crossbeam (3). The top of the screw (6) is threadedly connected to the opening and closing device (7). The opening and closing device (7) is located above the crossbeam (3).
2. A rectangular channel sluice gate according to claim 1, characterized in that: The top track (12) is welded to the node plate (4).
3. A rectangular channel sluice gate according to claim 1, characterized in that: The node plate (4) is connected to the concrete gate chamber (1) by bolts (13).
4. A rectangular channel sluice gate according to claim 1, characterized in that: Multiple connection holes (8) are provided on the outside of the concrete gate chamber (1).
5. A rectangular channel sluice gate according to claim 1, characterized in that: The front and rear ends of the flow channel of the concrete gate chamber (1) are provided with U-shaped grooves (9) arranged on the concrete gate chamber (1) along the outline of the flow channel.
6. A rectangular channel gate according to claim 1, characterized in that: The bottom of the flow channel of the concrete gate chamber (1) is chamfered on both the left and right sides.
7. A rectangular channel sluice gate according to claim 1, characterized in that: The door leaf (5) is made of welded steel profiles.
8. A rectangular channel sluice gate according to claim 1, characterized in that: The crossbeam (3), door leaf (5), screw (6), opening and closing device (7), bottom sill (11), two bottom rails (2), two node plates (4) and two top rails (12) are all treated with anti-corrosion.
9. A rectangular channel sluice gate according to claim 1, characterized in that: A U-shaped waterstop strip (14) is fixed on the water-facing surface of the door leaf (5) between the crossbeam (3), the two top rails (12) and the two bottom rails (2), and the back water-facing surface of the door leaf (5). A wedge block (15) is provided between the two bottom rails (2) and the back water-facing surface of the door leaf (5).