Rotary opening and closing gate

Abstract

The invention relates to the technical field of gates, and discloses a rotary opening and closing gate which is characterized in that a supporting block fixing plate is mounted on one side of a frame, supporting blocks are fixed to the top and the bottom of the supporting block fixing plate, a hand wheel shaft sequentially penetrates through the interiors of the two supporting blocks, and the bottom end of the hand wheel shaft is rotationally connected with a hand wheel shaft mounting plate through a bearing; a first bevel gear is fixedly connected to a hand wheel shaft in a sleeving mode, two gate mounting plates are symmetrically fixed to the middle of the frame, gate bearing seats are fixedly mounted in the middles of the top ends of the gate mounting plates correspondingly, and the two gate bearing seats are rotationally connected with a gate rotating shaft through bearings. When the gate rotates to a required position, the pull rope is loosened, under the action of the return spring, the pawl rotating shaft rotates to drive the pawl to return, the pawl is clamped with teeth on the ratchet wheel again, the ratchet wheel is locked and cannot rotate, the gate rotating shaft and the gate are fixed to the current position, and the gate is limited.

Description

Technical Field

[0001] This invention belongs to the field of gate application technology, and specifically relates to a rotary opening and closing gate. Background Technology

[0002] In water conservancy, water supply and drainage, and farmland irrigation projects, gates are commonly used control facilities. Their main function is to control the flow and cut off of water, as well as to regulate the flow rate. Traditional gate opening and closing methods are mostly lifting or sliding types, which have certain limitations. Lifting gates usually require a large driving force to overcome their own weight and water flow pressure, making operation relatively laborious, and their sealing performance is easily affected by factors such as gate deformation. Sliding gates require more complex guiding and transmission mechanisms, resulting in a relatively cumbersome structure, higher installation and maintenance costs, and insufficient precision and reliability in limiting the gate's position, making it difficult to stably fix the gate in a specific opening or closing position, causing many inconveniences in engineering construction and operation. Therefore, developing a rotary opening and closing gate is of significant practical importance.

[0003] Lift gates typically require significant driving force to overcome their own weight and water flow pressure, making operation laborious. Furthermore, their sealing performance is easily affected by factors such as gate deformation. Sliding gates, on the other hand, require more complex guiding and transmission mechanisms, resulting in a relatively cumbersome structure, higher installation and maintenance costs, and less precise and reliable limit positioning, making it difficult to stably fix the gate in a specific opening or closing position, causing numerous inconveniences for engineering construction and operation. Summary of the Invention

[0004] To address the aforementioned problems, the present invention provides a rotary opening and closing gate to solve the issues raised in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary opening and closing gate, comprising a frame, a gate, and a handwheel shaft; A support block fixing plate is installed on one side of the frame. Support blocks are fixed at the top and bottom of the support block fixing plate. A handwheel shaft passes through the inside of the two support blocks in sequence. The bottom end of the handwheel shaft is rotatably connected to the handwheel shaft mounting plate through a bearing. A bevel gear is fixedly fitted on the handwheel shaft. Two gate mounting plates are symmetrically fixed in the middle of the frame. Gate bearing seats are fixedly installed at the middle of the top of each gate mounting plate. The two gate bearing seats are rotatably connected to the gate shaft through a bearing. A gate is installed on the gate shaft. One end of the gate shaft passes through a ratchet and is fixedly connected to a bevel gear. The bevel gear and the bevel gear mesh with each other. A pawl mounting plate is fixed on the back of the frame. Two symmetrically arranged pawl bearing seats are fixed on the pawl mounting plate. A pawl shaft is rotatably connected between the two pawl bearing seats through a bearing. A pawl is fixedly fitted on the pawl shaft.

[0006] A return spring is also installed on the pawl shaft, the ratchet is fixedly connected to the gate shaft, and the pawl is engaged with the teeth on the ratchet.

[0007] A steel plate is installed on the top of the frame, and a hook is fixed on the top of the steel plate. A rope hole is provided on the pawl.

[0008] A pull rope is attached to the rope hole, and one end of the pull rope passes through the through hole and hook in the steel plate in sequence.

[0009] A handwheel is threadedly connected to the top of the handwheel shaft, and the handwheel shaft mounting plate is fixedly connected to the frame.

[0010] The gate shaft has a threaded hole, and the gate is threadedly connected to the threaded hole on the gate shaft by bolts.

[0011] The technical effects and advantages of this invention are as follows: 1. This invention involves the operator first pulling a rope, which causes the pawl to rotate around its pivot, disengaging it from the ratchet. At this point, the ratchet can rotate freely. Then, the handwheel is turned, causing its shaft to rotate. This rotation of the handwheel shaft, in turn, drives bevel gear one to rotate synchronously. Since bevel gear one meshes with bevel gear two, the rotation of bevel gear one drives bevel gear two to rotate, which in turn drives the gate pivot to rotate. The rotation of the gate pivot then rotates the gate, achieving rotary opening and closing of the gate. When the gate reaches the desired position, the rope is released. Under the action of the return spring, the pawl pivot rotates, causing the pawl to return to its original position. The pawl re-engages with the teeth on the ratchet, locking the ratchet and preventing it from rotating. This fixes the gate pivot and the gate in their current positions, achieving gate limiting.

[0012] 2. In this invention, when the pull rope is released by the return spring, the pawl is automatically driven back to its original position, ensuring reliable engagement between the pawl and the ratchet. 3. The present invention features a handwheel located on one side, which facilitates the operator's rotation of the handwheel shaft. The threaded connection facilitates the installation and removal of the handwheel, and the handwheel shaft mounting plate provides stable support for the handwheel shaft, ensuring its rotational stability.

[0013] 4. This invention enhances the sealing performance of the gate by setting sealing plates around the frame and welding the sealing plates, thus preventing water leakage from the connection between the frame and other structures.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the connection structure between the pawl bearing housing and the pawl of the present invention.

[0017] In the diagram: 1. Frame; 2. Gate; 3. Handwheel shaft; 4. Support block; 5. Bevel gear one; 6. Handwheel shaft mounting plate; 7. Ratchet; 8. Gate mounting plate; 9. Gate bearing seat; 10. Steel plate; 11. Bevel gear two; 12. Pawl; 13. Pawl mounting plate; 14. Pawl bearing seat; 15. Gate pivot; 16. Support block fixing plate; 17. Rope hole; 18. Pawl pivot; 19. Hook. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-5This invention provides a technical solution: a rotary gate, comprising a frame 1, a gate 2, and a handwheel shaft 3. A support block fixing plate 16 is installed on one side of the frame 1. Support blocks 4 are fixed at the top and bottom of the support block fixing plate 16. A handwheel shaft 3 passes through the interior of each of the two support blocks 4. The bottom end of the handwheel shaft 3 is rotatably connected to a handwheel shaft mounting plate 6 via a bearing. A bevel gear 5 is sleeved and fixed on the handwheel shaft 3. Two gate mounting plates 8 are symmetrically fixed in the middle of the frame 1. A handwheel shaft 3 is fixed at the center of the top of each gate mounting plate 8. The frame 1 is equipped with gate bearing seats 9. Two gate bearing seats 9 are rotatably connected to gate shaft 15 through bearings. Gate 2 is installed on gate shaft 15. One end of gate shaft 15 passes through ratchet 7 and is fixedly connected to bevel gear 11. Bevel gear 5 meshes with bevel gear 11. A pawl mounting plate 13 is fixed on the back of frame 1. Two symmetrically arranged pawl bearing seats 14 are fixed on pawl mounting plate 13. A pawl shaft 18 is rotatably connected between the two pawl bearing seats 14 through bearings. Pawl 12 is sleeved and fixed on pawl shaft 18.

[0020] In use, turning the handwheel drives the handwheel shaft 3 to rotate. Simultaneously, the handwheel shaft 3 rotates, driving the first bevel gear 5 to rotate. This, in turn, drives the second bevel gear 11, which in turn drives the gate shaft 15 to rotate. The gate shaft 15 then rotates the gate 2, thus achieving the rotary opening and closing of the gate 2. The ratchet 7 and pawl 12 are used to limit the rotational position of the gate 2. Before turning the handwheel, pulling the rope disengages the pawl 12 from the ratchet 7, allowing the ratchet 7 to rotate and thus adjust the rotation of the gate 2. When the gate 2 needs to be limited, releasing the rope causes the pawl shaft 18 to be subjected to a return spring, causing the pawl 12 to return to its original position and engage with the ratchet 7, preventing the ratchet 7 from rotating and thus limiting the gate 2.

[0021] Furthermore, a return spring is also installed on the pawl shaft 18, the ratchet 7 is fixedly connected to the gate shaft 15, and the pawl 12 is engaged with the teeth on the ratchet 7. The return spring can automatically drive the pawl 12 back to its original position when the pull rope is released, ensuring reliable engagement between the pawl 12 and the ratchet 7.

[0022] Furthermore, a steel plate 10 is installed on the top of the frame 1, and a hook 19 is fixed on the top of the steel plate 10. A rope hole 17 is provided on the pawl 12.

[0023] A rope is attached to the rope hole 17, and one end of the rope passes through the through hole opened on the steel plate 10 and the hook 19 in sequence.

[0024] The steel plate 10 can protect the internal components of the frame 1, while the pull rope makes it convenient for the operator to control the separation and engagement of the pawl 12 and the ratchet 7.

[0025] Furthermore, a handwheel is threadedly connected to the top of the handwheel shaft 3, and the handwheel shaft mounting plate 6 is fixedly connected to the frame 1; The handwheel is designed to facilitate the operator's rotation of the handwheel shaft 3, and the threaded connection makes it easy to install and remove the handwheel. The handwheel shaft mounting plate 6 provides stable support for the handwheel shaft 3, ensuring its rotational stability.

[0026] Furthermore, a threaded hole is provided on the gate shaft 15, and the gate 2 is threadedly connected to the threaded hole on the gate shaft 15 by bolts.

[0027] The installation method of gate 2 and gate shaft 15 facilitates the installation, disassembly and replacement of gate 2. When gate 2 is damaged or needs to be replaced with a gate 2 of different specifications, the operation is simple. In addition, when the frame 1 is in use, sealing plates are welded around the frame 1 for sealing. Welding sealing plates can enhance the sealing performance of gate 2 and prevent water from leaking from the connection between the frame 1 and other structures.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary gate, comprising a frame (1), a gate (2), and a handwheel axle (3); Its features are, A support block fixing plate (16) is installed on one side of the frame (1). Support blocks (4) are fixed at the top and bottom of the support block fixing plate (16). A handwheel shaft (3) passes through the interior of the two support blocks (4) in sequence. The bottom end of the handwheel shaft (3) is rotatably connected to the handwheel shaft mounting plate (6) through a bearing. A bevel gear (5) is sleeved and fixed on the handwheel shaft (3). Two gate mounting plates (8) are symmetrically fixed in the middle of the frame (1). Gate bearing seats (9) are fixedly installed in the middle of the top of the gate mounting plates (8). The two gate bearing seats (9) are connected by bearings. The gate is rotatably connected to the gate shaft (15), and a gate (2) is installed on the gate shaft (15). One end of the gate shaft (15) passes through the ratchet (7) and is fixedly connected to the bevel gear (11). The bevel gear (5) meshes with the bevel gear (11). A pawl mounting plate (13) is fixed on the back of the frame (1). Two symmetrically arranged pawl bearing seats (14) are fixed on the pawl mounting plate (13). A pawl shaft (18) is rotatably connected between the two pawl bearing seats (14) through a bearing. A pawl (12) is sleeved and fixed on the pawl shaft (18).

2. A rotary opening and closing gate according to claim 1, characterized in that: A return spring is also installed on the pawl shaft (18), the ratchet (7) is fixedly connected to the gate shaft (15), and the pawl (12) is engaged with the teeth on the ratchet (7).

3. A rotary opening and closing gate according to claim 2, characterized in that: A steel plate (10) is installed on the top of the frame (1), and a hook (19) is fixed on the top of the steel plate (10). A rope hole (17) is provided on the pawl (12).

4. A rotary opening and closing gate according to claim 3, characterized in that: A pull rope is attached to the rope hole (17), and one end of the pull rope passes through the through hole and hook (19) on the steel plate (10) in sequence.

5. A rotary opening and closing gate according to claim 1, characterized in that: The top end of the handwheel shaft (3) is threaded with a handwheel, and the handwheel shaft mounting plate (6) is fixedly connected to the frame (1).

6. A rotary opening and closing gate according to claim 2, characterized in that: The gate shaft (15) is provided with a threaded hole, and the gate (2) is threadedly connected to the threaded hole on the gate shaft (15) by bolts.

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