A new type of two-way water stop gate with improved sealing performance

Abstract

The utility model discloses a novel two -way water stop gate of promoting sealing performance relates to water conservancy engineering technical field. The novel two -way water stop gate of promoting sealing performance, including frame, the shape of frame is U shape, and the upside fixedly connected with top block of frame, and the inside slidingly connected with gate of frame, and the upside of top block is installed with rotary disc, and the downside fixedly connected with threaded rod of rotary disc, and the lower end of threaded rod is screwed and is passed top block, and the inside of gate is provided with limit slot, and the lower end fixedly connected with connecting shaft of threaded rod, and the lower end of connecting shaft rotates and extends into the inside of limit slot, and the lower end fixedly connected with limit block of connecting shaft, and limit block sets up in the inside of limit slot, and limit block is cylindrical block, and the seal mechanism is set up on frame and top block, and through the simultaneous action of multiple sets of seal structure, the two -way sealing between frame, top block, gate has been realized, effectively prevents liquid leakage, and the sealing reliability of gate has been improved.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a novel bidirectional water-stop gate that improves sealing performance. Background Technology

[0002] Bidirectional water-stop gates are widely used in water conservancy projects, water supply and drainage systems, sewage treatment plants, and other scenarios. Their core function is to achieve bidirectional obstruction and flow control of fluids, ensuring the stable operation of the system. Existing bidirectional water-stop gates typically include a frame, a gate slidably connected to the frame, a threaded rod and a rotating disk that drive the gate, and components such as sliding rods, sliding grooves, and sealing blocks for guidance and sealing. The frame provides the foundation for the gate's installation and sliding. The driving component drives the gate to move up and down through threaded transmission to achieve channel opening and closing. The guiding structure limits the gate's offset through the cooperation of the sliding rod and the sliding groove. The sealing block and the rubber pad on the inner wall of the sliding groove are used to seal the gaps between the components, forming a basic sealing system.

[0003] However, the sliding rods and grooves of existing bidirectional water-stop gate guide structures are mostly simple sliding fits with large gaps. The rubber gaskets rely solely on natural adhesion to achieve sealing, lacking active pre-tightening force. When water pressure fluctuates or the gate vibrates slightly, the gaps can easily widen, leading to leakage. Furthermore, the contact surface between the sealing block and the gate relies solely on the gate's own weight or the transmission pressure of the drive component to adhere, without an elastic compensation structure. After long-term use, component wear or transmission deviation can cause the contact surface to not fit tightly. At the same time, during the transmission of the drive component, the gate is prone to radial runout and displacement, causing misalignment of the sealing surface and further aggravating the leakage problem. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a new type of bidirectional water-stop gate with improved sealing performance. Through the simultaneous action of multiple sets of sealing structures, bidirectional sealing between the frame, top block and gate is achieved, effectively preventing liquid or gas leakage and improving the sealing reliability of the gate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel bidirectional water-stop gate with improved sealing performance, comprising a frame, the frame being U-shaped, a top block being fixedly connected to the upper side of the frame, and a gate being slidably connected inside the frame;

[0006] A rotating disk is installed on the upper side of the top block, and a threaded rod is fixedly connected to the lower side of the rotating disk. The lower end of the threaded rod is threaded through the top block. A sealing mechanism is provided on the frame and the top block. The sealing performance between the frame, the top block and the gate can be improved through the sealing mechanism.

[0007] The sealing mechanism includes an upper sealing block, a lower sealing block, two limiting slide rods, two limiting slide grooves, four sealing slide rods, four sealing slide grooves, two connecting grooves, and two sets of springs.

[0008] Preferably, a limiting groove is provided inside the gate, the limiting groove is a cylindrical groove, and a connecting shaft is fixedly connected to the lower end of the threaded rod;

[0009] The lower end of the connecting shaft extends rotatably into the interior of the limiting groove. A limiting block is fixedly connected to the lower end of the connecting shaft. The limiting block is set inside the limiting groove and is a cylindrical block.

[0010] Preferably, the upper sealing block is fixedly connected to the lower side of the top block, the lower end of the threaded rod rotates through the upper sealing block, and the lower sealing block is fixedly connected to the bottom wall of the frame.

[0011] The upper and lower sides of the gate can contact the upper sealing block and the lower sealing block respectively, and the two limit slide rods are fixedly connected to the front wall and the rear wall of the frame respectively.

[0012] Preferably, both limiting slide rods are T-shaped blocks, the two limiting slide rods are arranged symmetrically front and back, and the two limiting slide grooves are opened on the front and back sides of the gate;

[0013] Both limit slides extend into gates on their upper and lower sides. Both limit slides are T-shaped, and rubber pads are fixedly connected to the inner walls of both limit slides.

[0014] Preferably, the two limiting slide rods are slidably connected inside the two limiting slide grooves, and the four sealing slide rods are fixedly connected to the front wall and the rear wall of the frame, respectively.

[0015] Two sealing slide rods are fixedly connected to the front and rear walls of the frame. The four sealing slide rods are arranged in a circular array with the threaded rod as the center. The four sealing slide grooves are opened on the front and rear sides of the gate.

[0016] Four sealing rods are slidably connected inside four sealing grooves, and rubber pads are fixedly connected to the inner walls of the four sealing grooves.

[0017] Preferably, the two connecting grooves are respectively opened inside the upper sealing block and the lower sealing block, and the two sets of springs are respectively fixedly connected to the bottom wall of the two connecting grooves, and the upper ends of the two sets of springs are respectively fixedly connected to the top wall of the two connecting grooves.

[0018] Preferably, both limiting slide rods are isosceles trapezoidal blocks, and both limiting slide grooves are isosceles trapezoidal grooves.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) The new bidirectional water-stop gate with improved sealing performance, with the cooperation of the limiting slide rod and the limiting slide groove, as well as the auxiliary guidance of the sealing slide rod and the sealing slide groove, ensures that the gate moves in a precise direction and avoids the sealing failure caused by deviation. The rubber pads on the inner walls of the limiting slide groove and the sealing slide groove further improve the sealing performance.

[0021] (2) The new bidirectional water-stop gate with improved sealing performance utilizes the elastic pre-tightening force generated by the spring at the upper and lower limit positions of the gate to press the sealing block and the gate contact surface, making the two fit more tightly and improving the sealing effect. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of a novel bidirectional water-stop gate structure that improves sealing performance according to this utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional connection structure between the frame and the gate of this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A;

[0026] Figure 4 This is a schematic diagram of the connection structure of the gate of this utility model;

[0027] Figure 5 This is a schematic diagram of the cross-sectional connection structure of the upper sealing block and the lower sealing block of this utility model;

[0028] Figure 6 This is a schematic diagram of the connection structure between the limiting slide rod and the limiting slide groove of this utility model.

[0029] Reference numerals in the attached drawings: 1. Frame; 2. Top block; 3. Gate; 4. Rotating disc; 5. Threaded rod; 6. Limiting groove; 7. Connecting shaft; 8. Limiting block; 9. Upper sealing block; 10. Lower sealing block; 11. Limiting slide rod; 12. Limiting slide groove; 13. Sealing slide rod; 14. Sealing slide groove; 15. Connecting groove; 16. Spring. Detailed Implementation

[0030] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Please see Figure 1-6 This utility model provides a new technical solution: a novel bidirectional water-stop gate with improved sealing performance, including a frame 1: the frame 1 is a U-shaped structure, the frame 1 provides installation space and sliding track for the gate 3, the top block 2 is fixedly connected to the frame 1, and the frame 1 fixedly supports the limiting slide rod 11, the sealing slide rod 13 and the lower sealing block 10.

[0035] Top block 2: Top block 2 is fixedly connected to the upper side of frame 1. Top block 2 provides an installation carrier for rotating disk 4 and threaded rod 5. Top block 2 also provides fixed support for sealing block 9.

[0036] Gate 3: Gate 3 is slidably connected inside the frame 1. Gate 3 opens or closes the channel by moving up and down. The upper side of Gate 3 is used to contact the upper sealing block 9 to form a sealing surface, and the lower side of Gate 3 is used to contact the lower sealing block 10 to form a sealing surface. Limiting grooves 12 and sealing grooves 14 are provided on the front and rear sides of Gate 3, and limiting grooves 6 are provided inside Gate 3.

[0037] Rotating disk 4: Rotating disk 4 is installed on the upper side of top block 2, and threaded rod 5 is fixedly connected to the lower side of rotating disk 4. Rotating disk 4 receives the rotational force of the operator and drives threaded rod 5 to rotate synchronously.

[0038] Threaded rod 5: The upper end of the threaded rod 5 is fixedly connected to the rotating disk 4, and the lower end of the threaded rod 5 is fixedly connected to the connecting shaft 7. The threaded rod 5 is threadedly connected to the top block 2. The threaded rod 5 converts the rotational motion into axial up-and-down movement. The threaded rod 5 drives the gate 3 to move synchronously through the connecting shaft 7.

[0039] Limiting groove 6: The limiting groove 6 is opened inside the gate 3. The limiting groove 6 is a cylindrical groove. The limiting groove 6 accommodates the limiting block 8 and provides rotation space for the limiting block 8. The limiting groove 6 restricts the displacement of the limiting block 8 to prevent the limiting block 8 from leaving the gate 3.

[0040] Connecting shaft 7: The upper end of the connecting shaft 7 is fixedly connected to the threaded rod 5, and the lower end of the connecting shaft 7 is fixedly connected to the limiting block 8. The connecting shaft 7 connects the threaded rod 5 and the limiting block 8, and the connecting shaft 7 transmits the axial force of the threaded rod 5 to the limiting block 8.

[0041] Limiting block 8: Limiting block 8 is a cylindrical block. Limiting block 8 is set inside the limiting groove 6. Limiting block 8 rotates in the limiting groove 6. Limiting block 8 transmits the driving force of connecting shaft 7 to gate 3. Limiting block 8 ensures that gate 3 slides up and down synchronously with threaded rod 5.

[0042] Upper sealing block 9: The upper sealing block 9 is fixedly connected to the lower side of the top block 2. The lower end of the threaded rod 5 rotates through the upper sealing block 9. The upper sealing block 9 is used to contact the upper side of the gate 3 to form a sealing contact surface in the vertical direction.

[0043] Lower sealing block 10: The lower sealing block 10 is fixedly connected to the bottom wall of the frame 1. The lower sealing block 10 is used to contact the lower side of the gate 3 to form a sealing contact surface in the vertical direction.

[0044] Limiting slide bar 11: There are two limiting slide bars 11. The two limiting slide bars 11 are fixedly connected to the front wall and the rear wall of the frame 1 respectively. Both limiting slide bars 11 are T-shaped blocks and are arranged symmetrically front and back. The limiting slide bars 11 slide in the limiting slide groove 12. The limiting slide bars 11 guide and limit the movement direction of the gate 3 to prevent the gate 3 from deviating.

[0045] Limiting groove 12: There are two limiting grooves 12. The two limiting grooves 12 are respectively opened on the front and rear sides of the gate 3. Both limiting grooves 12 are T-shaped grooves and extend out of the gate 3 on both the upper and lower sides. The inner wall of the limiting groove 12 is fixedly connected with a rubber pad. The limiting groove 12 provides sliding space for the limiting slide rod 11. The rubber pad on the inner wall of the limiting groove 12 fits against the limiting slide rod 11 to seal the gap between the frame 1 and the gate 3 in the front and rear direction.

[0046] Sealing slide rod 13: There are four sealing slide rods 13. The four sealing slide rods 13 are fixedly connected to the front wall and the rear wall of the frame 1 respectively. Two sealing slide rods 13 are fixed to the front wall and the rear wall of the frame 1. The four sealing slide rods 13 are arranged in a circular array with the threaded rod 5 as the center. The sealing slide rods 13 slide into the sealing groove 14. The sealing slide rods 13 assist the limiting slide rod 11 in guiding and strengthening the seal.

[0047] Sealing groove 14: There are four sealing grooves 14. The four sealing grooves 14 are respectively opened on the front and rear sides of the gate 3. The inner wall of the sealing groove 14 is fixedly connected with a rubber pad. The sealing groove 14 provides sliding space for the sealing rod 13. The rubber pad on the inner wall of the sealing groove 14 fits with the sealing rod 13 to further seal the gap between the frame 1 and the gate 3 in the front and rear direction.

[0048] Connecting groove 15: There are two connecting grooves 15. The two connecting grooves 15 are respectively opened inside the upper sealing block 9 and the lower sealing block 10. The connecting grooves 15 provide installation space for the spring 16 and prevent the spring 16 from being exposed, which would affect the sealing or movement.

[0049] Spring 16: There are two sets of springs 16. The two sets of springs 16 are fixedly connected to the bottom wall of the two connecting grooves 15 respectively. When the gate 3 contacts the corresponding sealing block, the spring 16 is compressed. The spring 16 generates an elastic preload force to press the contact surface between the sealing block and the gate 3. The spring 16 enhances the sealing fit and improves the sealing performance.

[0050] Furthermore, when operating the rotating disk 4, the rotating disk 4 drives the threaded rod 5 to rotate. Since the threaded rod 5 is threadedly connected to the top block 2, the threaded rod 5 moves up and down along the axial direction when it rotates. The connecting shaft 7 and the limiting block 8 at the lower end of the threaded rod 5 rotate in the limiting groove 6 of the gate 3, thereby driving the gate 3 to slide up and down synchronously inside the frame 1.

[0051] During the up-and-down movement of the gate 3, the two limiting slide rods 11 slide within the limiting slide grooves 12 of the gate 3. The limiting slide rods 11 are T-shaped blocks, and the limiting slide grooves 12 are T-shaped grooves with rubber pads on their inner walls. This not only guides and limits the movement of the gate 3, but also initially seals the front-to-back gap between the frame 1 and the gate 3 through the rubber pads. At the same time, the four sealing slide rods 13 slide within the four sealing slide grooves 14 of the gate 3. The rubber pads on the inner walls of the sealing slide grooves 14 further seal the front-to-back gap between the frame 1 and the gate 3. Together with the sealing of the limiting slide rods 11 and the limiting slide grooves 12, the sealing performance of the frame 1 and the gate 3 in the front-to-back direction is enhanced.

[0052] When the gate 3 moves upward to its limit position, the upper side of the gate 3 contacts the upper sealing block 9. The spring 16 in the connecting groove 15 inside the upper sealing block 9 is compressed, and the spring 16 generates an elastic preload force, pressing against the contact surface between the upper sealing block 9 and the gate 3, making the two fit more tightly and improving the sealing performance between the gate 3 and the top block 2. When the gate 3 moves downward to its limit position, the lower side of the gate 3 contacts the lower sealing block 10. The spring 16 in the connecting groove 15 inside the lower sealing block 10 is compressed, and the spring 16 generates an elastic preload force, pressing against the contact surface between the lower sealing block 10 and the gate 3, making the two fit more tightly and improving the sealing performance between the gate 3 and the frame 1.

[0053] The gate 3 moves up and down through the transmission of the threaded rod 5. With the guidance and sealing effect of the limiting slide rod 11 and the sealing slide rod 13, and the pre-tightening seal of the spring 16 at the upper and lower limit positions of the gate 3, a bidirectional seal is achieved between the frame 1, the top block 2 and the gate 3, effectively improving the overall sealing performance.

[0054] Example: Agricultural irrigation canal scenario

[0055] Please see Figure 6 The two limiting slide rods 11 are replaced with isosceles trapezoidal blocks from T-shaped blocks, and the two limiting slide grooves 12 are replaced with isosceles trapezoidal grooves from T-shaped grooves. After the replacement, rubber pads are also fixedly connected to the inner wall of the limiting slide grooves 12. The structure and position of the sealing slide rod 13, the connecting groove 15 and the spring 16 remain unchanged.

[0056] After the replacement is completed, during the agricultural irrigation period, when adjusting the water flow, the operator rotates the rotating disk 4, causing the gate 3 to move up and down within the frame 1. At this time, the limiting slide rod 11 of the isosceles trapezoidal block will slide along the limiting slide groove 12 of the isosceles trapezoidal groove. The trapezoidal structure causes the contact area between the limiting slide rod 11 and the limiting slide groove 12 to gradually increase during the downward movement of the gate 3. With the rubber pad on the inner wall of the limiting slide groove 12, the lateral displacement of the gate 3 caused by the settlement of the channel soil can be avoided. When the irrigation water pressure increases, the self-centering effect of the trapezoidal inclined surface of the limiting slide rod 11 can automatically correct the slight tilt of the gate 3, allowing the upper and lower sides of the gate 3 to accurately fit the upper sealing block 9 and the lower sealing block 10. When the gate 3 is closed, the spring 16 in the connecting groove 15 is compressed to generate a pre-tightening force, which further squeezes the rubber pad of the limiting slide groove 12 and the inclined surface of the limiting slide rod 11, blocking the path of leakage of channel water from the front and rear gaps.

[0057] After the replacement, compared with the original T-shaped slide bar, the isosceles trapezoidal structure limiting slide bar 11 has better guiding stability. Even if there is a slight lateral deviation in the channel, the gate 3 can slide smoothly in the frame 1 without jamming. The rubber pad on the inner wall of the limiting slide groove 12 fits more evenly with the trapezoidal structure limiting slide bar 11, significantly reducing water leakage during irrigation. The trapezoidal structure limiting slide bar 11 does not have the right-angle stress concentration point of the T-shaped block, and it is not easy to wear down even with long-term frequent opening and closing of the gate 3, reducing the cost of replacing the limiting slide bar 11 during later maintenance. It is more in line with the low-cost and high-reliability usage requirements of agricultural irrigation scenarios.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A novel bidirectional water-stop gate with improved sealing performance, comprising a frame (1), the frame (1) being U-shaped, a top block (2) being fixedly connected to the upper side of the frame (1), and a gate (3) being slidably connected inside the frame (1). A rotating disk (4) is mounted on the upper side of the top block (2), and a threaded rod (5) is fixedly connected to the lower side of the rotating disk (4). The lower end of the threaded rod (5) is threaded through the top block (2). The feature is that: The frame (1) and the top block (2) are provided with sealing mechanisms, which can improve the sealing performance between the frame (1), the top block (2) and the gate (3); The sealing mechanism includes an upper sealing block (9), a lower sealing block (10), two limiting slide rods (11), two limiting slide grooves (12), four sealing slide rods (13), four sealing slide grooves (14), two connecting grooves (15), and two sets of springs (16).

2. A novel bidirectional water-stop gate with improved sealing performance according to claim 1, characterized in that: The gate (3) has a limiting groove (6) inside. The limiting groove (6) is a cylindrical groove. The lower end of the threaded rod (5) is fixedly connected to a connecting shaft (7). The lower end of the connecting shaft (7) rotates and extends into the interior of the limiting groove (6). The lower end of the connecting shaft (7) is fixedly connected to the limiting block (8). The limiting block (8) is set inside the limiting groove (6) and is a cylindrical block.

3. A novel bidirectional water-stop gate with improved sealing performance according to claim 1, characterized in that: The upper sealing block (9) is fixedly connected to the lower side of the top block (2), the lower end of the threaded rod (5) rotates through the upper sealing block (9), and the lower sealing block (10) is fixedly connected to the bottom wall of the frame (1). The upper and lower sides of the gate (3) can contact the upper sealing block (9) and the lower sealing block (10) respectively, and the two limit slide rods (11) are fixedly connected to the front wall and the rear wall of the frame (1) respectively.

4. A novel bidirectional water-stop gate with improved sealing performance according to claim 3, characterized in that: Both of the aforementioned limiting slide bars (11) are T-shaped blocks, and the two limiting slide bars (11) are arranged symmetrically front and back. Both limiting slide grooves (12) are opened on the front and back sides of the gate (3). Gates (3) extend from the upper and lower sides of the two limiting grooves (12). Both limiting grooves (12) are T-shaped grooves. Rubber pads are fixedly connected to the inner walls of both limiting grooves (12).

5. A novel bidirectional water-stop gate with improved sealing performance according to claim 4, characterized in that: The two limiting slide rods (11) are slidably connected inside the two limiting slide grooves (12), and the four sealing slide rods (13) are fixedly connected to the front wall and the rear wall of the frame (1); Two sealing slide rods (13) are fixedly connected to the front and rear walls of the frame (1). The four sealing slide rods (13) are arranged in a ring array with the threaded rod (5) as the center. The four sealing grooves (14) are opened on the front and rear sides of the gate (3). Four sealing rods (13) are slidably connected to the inside of four sealing grooves (14), and rubber pads are fixedly connected to the inner walls of the four sealing grooves (14).

6. A novel bidirectional water-stop gate with improved sealing performance according to claim 1, characterized in that: The two connecting grooves (15) are respectively opened inside the upper sealing block (9) and the lower sealing block (10). Two sets of springs (16) are respectively fixedly connected to the bottom wall of the two connecting grooves (15), and the upper ends of the two sets of springs (16) are respectively fixedly connected to the top wall of the two connecting grooves (15).

7. A novel bidirectional water-stop gate with improved sealing performance according to claim 3, characterized in that: Both of the limiting slide bars (11) are isosceles trapezoidal blocks, and both limiting slide grooves (12) are isosceles trapezoidal grooves.

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