A bottom-opening weir gate

Abstract

The present invention relates to a bottom-opening weir gate, comprising a weir gate frame, a slide groove is arranged in the weir gate frame, a weir gate plate is arranged in the slide groove, a driving device for driving the weir gate plate to move up and down is arranged on the weir gate frame, and the weir gate plate can move forward and backward relative to the driving device, so that at least one side of the weir gate plate is in contact with the weir gate frame. The bottom-opening weir gate provided by the present invention has the weir gate plate capable of moving forward and backward relative to the driving device. After the water passes through the channel of the weir gate frame at the front end of the weir gate frame, the weir gate plate is pressed against the inner side of the weir gate frame under the action of water pressure, so that one side of the weir gate plate is in contact with the inner side of the weir gate frame to achieve a sealing effect. The sealing effect is achieved by pressing the weir gate plate against the inner side of the weir gate frame by water pressure, and therefore, it is not limited by the thickness of the weir gate plate. Therefore, whether the weir gate plate and the weir gate are worn or not, it will not affect the sealing effect.

Description

Technical Field

[0001] The invention relates to the technical field of drainage engineering, in particular to a bottom-opening weir gate. Background Art

[0002] The bottom-opening weir gate is a commonly used equipment in drainage projects. It controls the opening and closing of the weir gate by raising and lowering the weir gate plate. During the lifting and lowering process of the weir gate, friction is generated between the weir gate and the weir gate frame, which reduces the sealing performance between the weir gate plate and the weir gate over time. For this reason, people try to improve the sealing performance of the weir gate by setting sealing strips on the weir gate plate or the weir gate frame. However, the setting of the sealing strip increases the friction between the weir gate plate and the weir gate frame, resulting in greater resistance when the weir gate plate moves up and down. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a bottom-opening weir gate to solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object of the invention, a technical solution provided by the present invention is as follows:

[0005] A bottom-opening weir gate comprises a weir gate frame, a slide groove is arranged in the weir gate frame, a weir gate plate is arranged in the slide groove, a driving device for driving the weir gate plate to move up and down is arranged on the weir gate frame, and the weir gate plate can move forward and backward relative to the driving device so that at least one side of the weir gate plate is in contact with the weir gate frame.

[0006] Preferably, the driving device is fixed to the top surface of the weir gate frame, and a connecting body is provided on the top surface of the weir gate plate near both sides, the bottom end of the connecting body is connected to the weir gate plate, and a groove is provided on the top of the connecting body, and the groove includes a first groove and a second groove, the first groove is a waist-shaped groove, which is located below the second groove, and the second groove is connected to the first groove; a strip plate is provided in the waist-shaped groove, and wheels are installed at both ends of the strip plate, and the distance between the wheels at both ends is less than the length of the first groove, so that the strip plate can move forward and backward; the power output end of the driving device passes through the second groove and is connected to the strip plate, and the diameter of the second groove is larger than the diameter of the power output end of the driving device, so that the strip plate can move forward and backward.

[0007] Preferably, the driving device is fixed to the bottom surface of the weir gate frame, and a connector is provided on the side of the weir gate plate near the top, one side of the connector is connected to the weir gate plate, and a groove is provided at the bottom end of the connector, and the groove includes a first groove and a second groove, the first groove is a waist-shaped groove, which is located above the second groove, and the second groove is connected to the first groove; a strip plate is provided in the waist-shaped groove, and wheels are installed at both ends of the strip plate, and the distance between the wheels at both ends is less than the length of the first groove, so that the strip plate can move forward and backward; the power output end of the driving device passes through the second groove and is connected to the strip plate, and the diameter of the second groove is larger than the diameter of the power output end of the driving device, so that the strip plate can move forward and backward.

[0008] Preferably, the front side surface of the weir gate frame is inclined, and the rear side surface of the weir gate frame is vertical, so that the front part of the channel of the weir gate frame is inclined and the rear part is horizontal; the slide groove is arranged corresponding to the front part of the channel of the weir gate frame and is arranged perpendicular to the channel of the weir gate frame.

[0009] Preferably, an arc-shaped positioning groove is provided on the top surface of the first groove corresponding to the rotating wheel, and when the power output end of the driving device is coaxial with the second groove, the top of the rotating wheel is located in the corresponding positioning groove.

[0010] Preferably, the driving device is a hydraulic cylinder or an electric push-pull rod.

[0011] Preferably, the weir gate plate includes a first weir gate plate and a second weir gate plate, and the first weir gate plate and the second weir gate plate are connected by an elastic member; the power output end of the driving device is connected to the elastic member, and the connection position is located in the middle of the elastic member; in a static state, the elastic member presses the two weir gate plates against the inner side surfaces of the corresponding weir gate frames; when the power output end of the driving device applies an external force to the elastic member, the elastic member can be deformed so that the two weir gate plates are separated from the inner side surfaces of the corresponding weir gate frames.

[0012] Preferably, the elastic member is a spring sheet or a spring.

[0013] Preferably, the driving device is fixed to the top surface of the weir gate frame.

[0014] When the bottom-opening weir gate provided by the present invention is in use, the weir gate plate is driven to rise or fall by a driving device. When rising, the weir gate plate gradually closes the channel of the weir gate frame, and when falling, the weir gate plate gradually opens the channel of the weir gate frame. After the weir gate plate stops moving, since the weir gate plate can move forward and backward relative to the driving device, water passes through the channel of the weir gate frame at the front end of the weir gate frame and presses the weir gate plate against the inner side of the weir gate frame under the action of water pressure, so that one side of the weir gate plate fits with the inner side of the weir gate frame to achieve a sealing effect. The sealing effect is achieved by pressing the weir gate plate against the inner side of the weir gate frame by water pressure. Therefore, it is not limited by the thickness of the weir gate plate. Therefore, whether the weir gate plate and the weir gate are worn or not, it will not affect the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a bottom-opening weir gate of Example 1 is shown;

[0016] Figure 2 Shows Figure 1 Schematic diagram of the internal structure of the middle connector;

[0017] Figure 3 Shows Figure 2 A magnified view at point A;

[0018] Figure 4 A schematic structural diagram of a bottom-opening weir gate of Example 2 is shown;

[0019] Figure 5 Shows Figure 4 A side sectional view of the weir door frame in FIG.

[0020] Figure 6 Shows Figure 4 Schematic diagram of the internal structure of the middle connector;

[0021] Figure 7 A schematic structural diagram of a bottom-opening weir gate of Example 3 is shown;

[0022] Reference numerals in the accompanying drawings:

[0023] Weir gate frame 1, slide groove 2, weir gate plate 3, first weir gate plate 3-1, second weir gate plate 3-2, driving device 4, connecting body 5, first groove 6, second groove 7, strip plate 8, rotating wheel 9, positioning groove 10, channel 11 of gate frame, elastic member 12. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1, please refer to Figure 1-Figure 3 The embodiment of the present application provides a bottom-opening weir gate, including a weir gate frame 1, a slide groove 2 is arranged in the weir gate frame, a weir gate plate 3 is arranged in the slide groove, and a driving device 4 for driving the weir gate plate to move up and down is arranged on the weir gate frame, wherein the driving device can use an existing device, and a general driving device can be a hydraulic cylinder or an electric push-pull rod; the driving device is fixed to the top surface of the weir gate frame, and a connector 5 is arranged on the top surface of the weir gate plate near both sides, the bottom end of the connector is connected to the weir gate plate, and the top end of the connector is provided with a groove, and the groove includes a first groove 6 and a second groove 7, the first groove is a waist-shaped groove, located at Below the second groove, the second groove is connected with the first groove; a strip plate 8 is arranged in the waist-shaped groove, and wheels 9 are installed at both ends of the strip plate, and the distance between the wheels at both ends is smaller than the length of the first groove, so that the strip plate can move forward and backward; the power output end of the driving device passes through the second groove and is connected with the strip plate, and the diameter of the second groove is larger than the diameter of the power output end of the driving device, so that the strip plate can move forward and backward; an arc-shaped positioning groove 10 is arranged on the top surface of the first groove corresponding to the wheel, and when the power output end of the driving device is coaxial with the second groove, the top of the wheel is located in the corresponding positioning groove.

[0026] When the bottom-opening weir gate of the present invention is in use, the weir gate plate is driven to rise or fall by the driving device. When rising, the weir gate plate gradually closes the channel of the weir gate frame, and when falling, the weir gate plate gradually opens the channel of the weir gate frame. In the process of rising and falling, the two wheels enter the corresponding positioning grooves, and the weir gate plate reaches balance. After the weir gate plate stops moving, since the strip plate can move back and forth, water at the front end of the weir gate frame passes through the channel of the weir gate frame and, under the action of water pressure, presses the weir gate plate against the inner side of the weir gate frame, so that one side of the weir gate plate fits with the inner side of the weir gate frame to achieve a sealing effect, and the cover is sealed. The sealing effect is achieved by pressing the weir gate plate against the inner side of the weir gate frame through water pressure. Therefore, it is not limited by the thickness of the weir gate plate. Therefore, no matter whether the weir gate plate and the weir gate are worn or not, it will not affect the sealing effect. In actual production, the thickness of the weir gate plate is made slightly smaller than the width of the slide groove to ensure that the weir gate plate can move back and forth. In this way, there is a gap between the weir gate plate and the inner side of the weir gate frame during the lifting process, and it is not easy to generate friction with the weir gate frame. In actual production, a sealing strip can also be set at the position of the weir gate plate or the weir gate frame corresponding to the channel of the weir gate frame to further increase the sealing performance of the weir gate.

[0027] Example 2, please refer to Figure 4-Figure 6 The embodiment of the present application provides a bottom-opening weir gate, including a weir gate frame 1, a slide groove 2 is arranged in the weir gate frame, a weir gate plate 3 is arranged in the slide groove, and a driving device 4 for driving the weir gate plate to move up and down is arranged on the weir gate frame, wherein the driving device can use an existing device, and a general driving device can be a hydraulic cylinder or an electric push-pull rod; the driving device is fixed to the bottom surface of the weir gate frame, and a connector 5 is arranged on the side of the weir gate plate near the top, one side of the connector is connected to the weir gate plate, and a groove is arranged at the bottom end of the connector, and the groove includes a first groove 6 and a second groove 7, the first groove is a waist-shaped groove, which is located above the second groove, and the The second groove is connected to the first groove; a strip plate 8 is arranged in the waist-shaped groove, and wheels 9 are installed at both ends of the strip plate, and the distance between the wheels at both ends is less than the length of the first groove, so that the strip plate can move forward and backward; the power output end of the driving device passes through the second groove and is connected to the strip plate, and the diameter of the second groove is larger than the diameter of the power output end of the driving device, so that the strip plate can move forward and backward; the front side surface of the weir gate frame is inclined, and the rear side surface of the weir gate frame is vertical, so that the front part of the channel 11 of the weir gate frame is inclined, and the rear part is horizontal, and the slide groove is arranged corresponding to the front part of the channel of the weir gate frame, and is arranged perpendicular to the channel of the weir gate frame. In this embodiment, an arc-shaped positioning groove can also be arranged on the top surface of the first groove corresponding to the wheel, and when the power output end of the driving device is coaxial with the second groove, the top of the wheel is located in the corresponding positioning groove.

[0028] The bottom-opening weir gate provided in this embodiment has a principle substantially the same as that of Embodiment 1, with the difference being that the driving device is located on the bottom surface of the weir gate frame, the front portion of the channel of the weir gate frame is inclined, and the slide groove is correspondingly inclined, so that after the weir gate plate stops moving, the weir gate plate is subjected to the pressure of the water and its own gravity, and is better sealed with the weir gate frame.

[0029] Example 3, please refer to Figure 7 The difference between this embodiment and embodiment 1 is that a connecting structure is not provided, but the weir gate plates are provided as two front and rear ones. Specifically, the weir gate plates include a first weir gate plate 3-1 and a second weir gate plate 3-2, and the first weir gate plate and the second weir gate plate are connected by an elastic member 12; the power output end of the driving device is connected to the elastic member, and the connection position is located in the middle of the elastic member; in a static state, the elastic member presses the two weir gate plates against the inner side surfaces of the corresponding weir gate frames; under the action of external force applied to the elastic member by the power output end of the driving device, the elastic member can be deformed so that the two weir gate plates are separated from the inner side surfaces of the corresponding weir gate frames. In this embodiment, the elastic member can be a spring sheet or a spring. Generally, the driving device is fixed to the top surface of the weir gate frame.

[0030] When this structure is in use, when the driving device drives the weir gate plate to rise or fall, the elastic member is deformed by force so that the first weir gate plate and the second weir gate plate move closer to the middle, so that a distance is generated between the outer side surfaces of the first weir gate plate and the inner wall of the weir gate frame, so that there is no friction between the weir gate plate and the weir gate frame; when the driving device stops, the elastic member returns to its original state and presses the first weir gate plate and the second weir gate plate against the inner wall of the weir gate frame to maintain the sealing performance of the weir gate plate and the weir gate frame; of course, a sealing strip can also be provided on the weir gate plate or the weir gate frame at a position corresponding to the channel of the weir gate frame to further increase the sealing performance of the weir gate.

[0031] As an implementation mode, the connector in Example 1 can also be fixed on the elastic member, and the connector structure in Example 1 is used to connect with the driving device. This structure is suitable for an environment where both sides may be used as the front end. When water flows from the left side to the right side, the water first forms pressure on the first weir gate plate, and the second weir gate plate supports each other with the first weir gate plate through the elastic member. When the water pressure is relatively small, the first weir gate plate and the second weir gate plate can both form a seal on the channel of the weir gate frame; the greater the water pressure, the greater the pressure of the first weir gate plate on the second weir gate plate, and the sealing performance of the second weir gate plate can be better guaranteed, thereby ensuring the overall sealing of the weir gate; when water flows from the right side to the left side, the water first forms pressure on the second weir gate plate, and the first weir gate plate supports each other with the second weir gate plate through the elastic member. When the water pressure is relatively small, the first weir gate plate and the second weir gate plate can both form a seal on the channel of the weir gate frame; the greater the water pressure, the greater the pressure of the second weir gate plate on the first weir gate plate, and the sealing performance of the first weir gate plate can be better guaranteed, thereby ensuring the overall sealing of the weir gate.

[0032] The above embodiment structure is only an example of the solution of the present invention, and it can also be modified in many ways, as long as it can realize the function that the gate plate can move forward and backward relative to the driving device so that at least one side of the gate plate is in contact with the gate frame. The gate frame and gate plate in the above embodiment can be made of non-metallic materials, or can be made of stainless steel or other materials.

[0033] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0034] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0035] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0036] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom-opening weir gate, comprising a weir gate frame (1), a slide groove (2) arranged in the weir gate frame, a weir gate plate (3) arranged in the slide groove, and a driving device (4) for driving the weir gate plate to move up and down arranged on the weir gate frame, characterized in that: The weir gate plate can move forward and backward relative to the driving device so that at least one side of the weir gate plate is in contact with the weir gate frame; The driving device is fixed to the top surface of the weir gate frame, a connector (5) is provided on the top surface of the weir gate plate near two sides, the bottom end of the connector is connected to the weir gate plate, the top end of the connector is provided with a groove, the groove comprises a first groove (6) and a second groove (7), the first groove is a waist-shaped groove, located below the second groove, and the second groove is connected to the first groove; A strip plate (8) is arranged in the waist-shaped groove, and rotating wheels (9) are installed at both ends of the strip plate, and the distance between the rotating wheels at the two ends is smaller than the length of the first groove, so that the strip plate can move forward and backward; The power output end of the driving device is connected to the strip plate through the second groove, and the diameter of the second groove is larger than the diameter of the power output end of the driving device, so that the strip plate can move forward and backward.

2. A bottom-opening weir gate, comprising a weir gate frame (1), a slide groove (2) arranged in the weir gate frame, a weir gate plate (3) arranged in the slide groove, and a driving device (4) for driving the weir gate plate to move up and down arranged on the weir gate frame, characterized in that: The weir gate plate can move forward and backward relative to the driving device so that at least one side of the weir gate plate is in contact with the weir gate frame; The driving device is fixed to the bottom surface of the weir gate frame, a connector (5) is provided on the side of the weir gate plate near the top, one side of the connector is connected to the weir gate plate, a groove is provided at the bottom end of the connector, the groove comprises a first groove (6) and a second groove (7), the first groove is a waist-shaped groove, located above the second groove, and the second groove is connected to the first groove; A strip plate (8) is arranged in the waist-shaped groove, and rotating wheels (9) are installed at both ends of the strip plate, and the distance between the rotating wheels at the two ends is smaller than the length of the first groove, so that the strip plate can move forward and backward; The power output end of the driving device is connected to the strip plate through the second groove, and the diameter of the second groove is larger than the diameter of the power output end of the driving device, so that the strip plate can move forward and backward.

3. A bottom-opening weir gate according to claim 2, characterized in that: The front side of the weir gate frame is inclined, and the rear side of the weir gate frame is vertical, so that the front part of the channel (11) of the weir gate frame is inclined, and the rear part is horizontal; The slide groove is arranged corresponding to the front part of the channel of the weir gate frame and is arranged perpendicular to the channel of the weir gate frame.

4. A bottom-opening weir gate according to any one of claims 1 to 3, characterized in that: An arc-shaped positioning groove (10) is provided on the top surface of the first groove corresponding to the rotating wheel, and when the power output end of the driving device is coaxial with the second groove, the top of the rotating wheel is located in the corresponding positioning groove.

5. A bottom-opening weir gate according to claim 4, characterized in that: The driving device is a hydraulic cylinder or an electric push-pull rod.

6. A bottom-opening weir gate, comprising a weir gate frame (1), a slide groove (2) arranged in the weir gate frame, a weir gate plate (3) arranged in the slide groove, and a driving device (4) for driving the weir gate plate to move up and down arranged on the weir gate frame, characterized in that: The weir gate plate can move forward and backward relative to the driving device so that at least one side of the weir gate plate is in contact with the weir gate frame; The weir gate plate comprises a first weir gate plate (3-1) and a second weir gate plate (3-2), wherein the first weir gate plate and the second weir gate plate are connected via an elastic member (12); The power output end of the driving device is connected to the elastic member, and the connection position is located in the middle of the elastic member; In a static state, the elastic member presses the two weir gate plates against the inner side surfaces of the corresponding weir gate frames; When an external force is applied to the elastic member by the power output end of the driving device, the elastic member can be deformed so that the two weir gate plates are separated from the inner side surfaces of the corresponding weir gate frames.

7. A bottom-opening weir gate according to claim 6, characterized in that: The elastic member is a spring sheet or a spring.

8. The bottom-opening weir gate according to claim 6, characterized in that: The driving device is fixed to the top surface of the weir gate frame.

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