A two-way water-stop gate

Abstract

The present invention discloses a two-way water-stop gate, which includes a gate frame, a gate plate and a gate sealing assembly, wherein a slide groove is provided on the gate frame, and the gate frame includes a sealing seat, the gate plate can be slidably installed in the slide groove, and moves along the slide groove under the drive of a power component, and the gate sealing assembly includes a sealing strip installed on the gate plate; a main sealing lip, which is a flange provided on both sides of the sealing strip, and the angle formed between the main sealing lip and the sealing strip is greater than 90°, and the main sealing lip is attached to the sealing seat of the gate frame of the gate under the action of medium pressure. In this way, during the working process, the gate sealing assembly is pressed against the sealing seat under the action of high-pressure medium to achieve a sealing effect, and the pressure of the medium itself is used for sealing, thereby completely closing the waterway, solving the technical problems that the opening and closing force required by the existing sealing structure is large and the possibility of leakage at the joint of the sealing strip is large.

Description

Technical Field

[0001] The invention belongs to the technical field of waterway gate sealing, and in particular relates to a bidirectional water-stop gate. Background Art

[0002] At present, flat gates are usually used as water retaining structures in waterways. A flat gate is a gate with a flat panel as the water retaining surface. The gate plate of the flat gate moves linearly in the gate slot to close and open the waterway. Existing flat gates mostly use seals with a "P"-shaped cross-section to seal and stop water. When two-way sealing is required, the form of "wedge block + single-sided P-type rubber" or double-sided "P"-type rubber sealing strip is mostly used.

[0003] However, the existing water-stop gates require a large opening and closing force when opening and closing, resulting in severe wear between the seal and the sealing seat. In addition, since a variety of sealing strips with different structures are used in combination, there is a high possibility of leakage at the joints between the sealing strips with different structures. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides a bidirectional water-stop gate to at least partially solve the technical problem that the existing water-stop gate requires a large opening and closing force.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A two-way water-stop gate, comprising:

[0007] A gate frame, wherein a slide groove is arranged on the gate frame, and the gate frame comprises a sealing seat;

[0008] A gate plate, which is slidably mounted in the slide groove and moves along the slide groove under the drive of a power component;

[0009] A gate sealing assembly, the gate sealing assembly comprising:

[0010] A sealing strip, mounted on the gate plate;

[0011] The main sealing lip is a flange arranged on both sides of the sealing strip. The angle formed between the main sealing lip and the sealing strip is greater than 90°. The main sealing lip is attached to the sealing seat of the gate frame of the gate under the action of the medium pressure.

[0012] Furthermore, the gate sealing assembly also includes:

[0013] Auxiliary sealing lip, the groove of the sealing strip is provided with protruding edges on both sides, the protruding edges form the auxiliary sealing lip, and the auxiliary sealing lip is attached to the sealing seat of the gate frame of the gate under the action of the medium pressure.

[0014] Furthermore, it also includes:

[0015] The pressure strip is embedded in the groove of the sealing strip. The sealing strip is fixed to the corresponding mounting surface through the pressure strip and is fixedly connected to the gate plate through bolts.

[0016] Furthermore, the gate frame comprises:

[0017] The beams on both sides extend in the vertical direction and are arranged side by side at intervals;

[0018] The sealing seat comprises a vertical sealing seat, and the vertical sealing seat and the side beam form the sliding groove;

[0019] The gate sealing assembly is sealably slidably connected to the vertical sealing seat.

[0020] Furthermore, the sealing seat further comprises:

[0021] A transverse sealing seat is arranged between the two side beams at intervals, and the vertical sealing seat and the transverse sealing seat form a four-sided frame-type sealing seat.

[0022] Furthermore, the vertical sealing seat includes a horizontal surface and a first guide surface transitionally connected to the horizontal surface, and the first guide surface is inclined toward a side away from the gate plate.

[0023] Further, the transverse sealing seat comprises a vertical surface and a second guide surface transitionally connected to the upper end of the vertical surface, and the second guide surface is inclined toward a side away from the gate plate;

[0024] Alternatively, the transverse sealing seat includes a vertical surface and a second guide surface and a third guide surface transitionally connected to the upper end and the lower end of the vertical surface, and the second guide surface and the third guide surface are inclined toward a side away from the gate plate.

[0025] Furthermore, it also includes:

[0026] A limit block is installed on the gate plate, and when the sealing strip is at the compression limit position, the gate plate is limited by the limit block.

[0027] Furthermore, the power component is a hydraulic cylinder.

[0028] Furthermore, the gate frame also includes:

[0029] The cylinder seat cross beam is located at the top of the gate frame, the fixed end of the power component is installed on the cylinder seat cross beam, and the telescopic end of the power component is connected to the gate plate near the lower edge.

[0030] In one or more specific embodiments, the gate sealing assembly provided by the present invention includes the following technical effects:

[0031] The bidirectional water-stop gate provided by the present invention comprises a gate frame, a gate plate and a gate sealing assembly, wherein the gate sealing assembly comprises a sealing strip installed on the gate plate; a main sealing lip, which is a flange arranged on both sides of the sealing strip, the angle formed between the main sealing lip and the sealing strip is greater than 90°, and the main sealing lip is attached to the sealing seat of the gate frame of the gate under the action of the medium pressure. In this way, during the working process, the gate sealing assembly is attached to the sealing seat under the action of the high-pressure medium to achieve a sealing effect, and the pressure of the medium itself is used for sealing, thereby completely closing the waterway, solving the technical problems that the existing sealing structure requires a large opening and closing force and the possibility of leakage at the joint of the sealing strip is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A schematic structural diagram of a specific implementation of the water stop gate provided by the present invention;

[0034] Figure 2 A schematic diagram of the partial structure of the gate frame in the water stop gate provided by the present invention;

[0035] Figure 3 A partial schematic diagram of a transverse sealing seat in a water stop gate provided by the present invention;

[0036] Figure 4 This is a schematic diagram of the assembly of the sealing assembly and the gate provided by the present invention;

[0037] Figure 5 This is an axonometric schematic diagram of the sealing assembly provided by the present invention;

[0038] Figure 6 A schematic cross-sectional view of a sealing assembly provided by the present invention;

[0039] Figure 7 This is a diagram showing the use status of the sealing assembly provided by the present invention.

[0040] Description of reference numerals:

[0041] 1-Hydraulic cylinder 2-Gate frame 3-Gate plate 4-Pressing strip

[0042] 500-gate seal assembly 5-seal strip 51-main seal lip 52-secondary seal lip

[0043] 21-vertical sealing seat 22-side beam 23-first guide surface 24-horizontal surface 25-transverse sealing seat

[0044] 26- second guide surface 27- vertical surface 28- third guide surface 29- slide groove DETAILED DESCRIPTION

[0045] 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.

[0046] In a specific embodiment, Figure 1 As shown, the water stop gate provided by the present invention includes a gate frame 2, a gate plate 3 and a gate sealing assembly 500. The gate frame 2 is provided with a slide groove, and the gate frame 2 includes a sealing seat; the gate plate 3 can be slidably installed in the slide groove, and moves along the slide groove under the drive of the power component. The gate sealing assembly 500 includes a sealing strip 5 installed on the gate plate 3, and a main sealing lip 51; the main sealing lip 51 is specifically a flange provided on both sides of the sealing strip 5, and the angle formed between the main sealing lip 51 and the sealing strip is greater than 90°, and the main sealing lip 51 is attached to the sealing seat of the gate frame 2 of the gate under the action of the medium pressure. The gate sealing assembly 500 is attached to the sealing seat under the action of the medium pressure, and is separated from the sealing seat when the medium pressure disappears or decreases to below the compression threshold. The above-mentioned power component is specifically a hydraulic cylinder 1. A cylinder seat crossbeam is provided on the gate frame 2. The hydraulic cylinder 1 is installed on the cylinder seat crossbeam and drives the gate plate 3 to move up and down in the slide groove of the gate frame 2 to complete the opening and closing of the gate. The gate sealing assembly 500 is installed on the gate plate 3. When the gate is in a closed state, the gate sealing assembly 500 is sealed with the sealing seat of the gate frame 2 under the action of the medium pressure. In general, the above-mentioned hydraulic cylinder 1 is installed on the gate frame 2, and the hydraulic cylinder 1 and the gate plate 3 are connected by a pin shaft. The hydraulic cylinder 1, the gate plate 3, the gate frame 2, etc. are assembled into an assembly, and the assembly is fixed to the front of the wall. The gate plate 3 includes a gate plate welding body and a seal, a limit block, a guide block, etc. assembled on the gate plate welding body. The cylinder seat crossbeam is located at the top of the gate frame 2, the fixed end of the power component is installed on the cylinder seat crossbeam, and the telescopic end of the power component is connected to the gate plate 3 near the lower edge; in this way, during operation, the stroke of the cylinder partially overlaps with the stroke of the gate plate, so that the installation space of the gate can be reduced.

[0047] Further, the gate frame 2 includes two side beams 22 extending in the vertical direction and arranged side by side at intervals, the sealing seat includes a vertical sealing seat 21, the vertical sealing seat 21 and the side beam 22 form the slide groove, and the gate sealing assembly 500 is slidably connected to the vertical sealing seat in a sealed manner. In other words, the vertical sealing seat 21 includes a first vertical seat and a second vertical seat, and the first vertical seat and the second vertical seat are respectively arranged on the left and right sides of the gate frame 2, and the slide grooves are respectively formed between the first vertical seat and the side beam 22, and between the second vertical seat and the side beam 22.

[0048] The gate frame 2 also includes a transverse sealing seat 25, which is arranged between the two side beams 22 at intervals, and the vertical sealing seat 21 and the transverse sealing seat 25 form a four-sided frame-type sealing seat. In other words, the gate frame 2 includes an upper cylinder seat crossbeam, a middle transverse sealing seat 25, vertical beams on the left and right sides and the vertical sealing seat 21, etc. The vertical beams on the left and right sides and the vertical sealing seat 21 form a slide groove 29 of the gate frame 2, and the gate plate 3 is installed in the slide groove 29 and can slide up and down along the slide groove 29.

[0049] The vertical sealing seat 21 includes a horizontal surface 24 and a first guide surface 23 transitionally connected to the horizontal surface 24, and the first guide surface 23 is inclined toward a side away from the gate plate 3. The transverse sealing seat 25 includes a vertical surface 27 and a second guide surface 26 transitionally connected to the upper end of the vertical surface 27, and the second guide surface 26 is inclined toward a side away from the gate plate 3. Alternatively, the transverse sealing seat 25 includes a vertical surface 27 and a second guide surface 26 and a third guide surface 28 transitionally connected to the upper and lower ends of the vertical surface 27, and the second guide surface 26 and the third guide surface 28 are inclined toward a side away from the gate plate 3. Figure 2 , 3 As shown, the gate frame 2 includes a vertical sealing seat 21, a transverse sealing seat 25 and a side beam 22. The left and right vertical sealing seats 21 and the upper and lower transverse sealing seats 25 together form the sealing seat of the gate frame 2. A slide groove is formed between the left and right side beams 22 and the sealing seat. Among them, the vertical sealing seat 21 includes a horizontal surface 24 and a first guide surface 23 in the form of an inclined surface. The intersection of the first guide surface 23 and the horizontal surface 24 forms a rounded corner to prevent the seal from being scratched. The transverse sealing seat 25 includes a vertical surface 27, a second guide surface 26 in the form of an inclined surface and a third guide surface 28 in the form of an inclined surface. The gate sealing assembly 500 slides up and down in the slide groove along with the gate plate 3. During this process, the gate sealing assembly 500 will periodically fit in and out of the vertical surface 27 of the transverse sealing seat 25. In order to prevent the flange of the gate sealing assembly 500 from rolling up during the above-mentioned movement, a second guide surface 26 and a third guide surface 28 are provided to guide the flange to fit smoothly with the vertical surface 27 of the transverse sealing seat 25.

[0050] like Figure 4-7 As shown, the gate sealing assembly 500 provided by the present invention includes a sealing strip 5 and a main sealing lip 51, wherein the sealing strip 5 is an integrally formed frame structure, the sealing strip 5 is provided with a groove along the length direction, at least one side of the sealing strip 5 is provided with a flange, the flange forms the main sealing lip 51, the main sealing lip 51 has an outward turning angle greater than 90°, and is attached to the gate frame 2 of the gate under the action of the medium pressure.

[0051] In the above specific embodiment, flanges are provided on both sides of the sealing strip, and the flanges on both sides are symmetrically distributed relative to the central axis of the groove. When the gate is in a closed state, the flanges on both sides fit with the sealing seat of the gate frame 2, thereby improving the sealing effect and ensuring that both sides are well sealed.

[0052] Specifically, the sealing strip 5 is a quadrilateral frame structure, that is, the sealing strip 5 is composed of four sealing strips, which are integrally formed to form a complete frame, and the four sealing strips are respectively the four sides of the frame. The main structure formed by the sealing strip 5 can be determined according to the sealing requirements, for example, it can also form a circular ring structure. The quadrilateral structure is more convenient to adapt to the gate with a square bottom structure to ensure the sealing effect, so the quadrilateral frame structure is a more preferred solution.

[0053] Furthermore, in order to improve the sealing performance, the sealing assembly further includes a secondary sealing lip 52. The groove of the sealing strip 5 is provided with protrusions on both sides, and the protrusions form the secondary sealing lip 52. The secondary sealing lip 52 is attached to the gate frame 2 of the gate under the action of the medium pressure. That is, the cross-sectional schematic diagram of the sealing strip 5 is as follows: Figure 4 The sealing strip 5 is provided with a groove along the length direction, and flanges are provided on both sides of the sealing strip 5 as main sealing lips 51, and the angle between the flanges on both sides is greater than 90°. At the same time, protrusions are provided on both sides of the groove as auxiliary sealing lips 52, and the compression amount of the auxiliary sealing lips 52 is 2mm. During the working process, the protrusions on both sides are pressed and compressed against the gate frame 2, and a compression amount of about 2mm is generated.

[0054] In order to facilitate the installation of the sealing assembly and ensure the connection reliability of the sealing assembly, the sealing assembly also includes a pressure strip 4, which is embedded in the groove, and the sealing strip 5 is fixed to the corresponding installation surface through the pressure strip 4, and the pressure strip 4 is fixedly connected to the gate plate 3 of the gate through bolts.

[0055] When the gate plate 3 slides relative to the gate frame 2, if the sliding position is too low, the sealing strip 5 will be over-compressed, affecting the service life of the sealing strip 5. In order to solve this problem, the gate sealing assembly 500 provided by the present invention also includes a limit block, which is installed on the gate plate 3. When the sealing strip 5 is in the compression limit position, the gate plate 3 is limited by the limit block. In other words, the gate plate 3 is provided with a limit block to maintain the position of the gate plate 3 in the slide groove of the gate frame 2 to prevent the sealing strip 5 from being over-compressed in the slide groove of the gate frame 2. It should be understood that the compression limit position refers to the position where the sealing strip 5 is compressed to a preset value during operation.

[0056] In the course of work, Figure 7 As shown ( Figure 7 The direction of the middle arrow is the medium flow direction). If the medium flows from the front of the gate to the back of the gate, the medium pressure acts on the right flange, which will make the right flange tightly attached to the sealing seat of the gate frame 2. The higher the pressure, the tighter the fit. If the medium flows from the back of the gate to the front of the gate, the medium pressure acts on the left flange, which will make the left flange tightly attached to the sealing seat of the gate frame 2. The higher the pressure, the tighter the fit.

[0057] When the medium pressure is low, or the sealing strip 5 is not tightly fitted to the sealing seat of the gate frame 2 at some points along the length direction, the sealing medium may gradually penetrate the flanges on both sides. The flanges on both sides are set to further seal the medium that penetrates from the flanges on both sides to prevent leakage of the gate.

[0058] In the above specific implementation, the bidirectional water-stop gate provided by the present invention includes a gate frame 2, a gate plate 3 and a gate sealing assembly 500, wherein a slide groove is provided on the gate frame 2, and the gate frame 2 includes a sealing seat, the gate plate 3 can be slidably installed in the slide groove, and moves along the slide groove under the drive of the power component, and the gate sealing assembly 500 is attached to the sealing seat under the action of the medium pressure, and is separated from the sealing seat when the medium pressure disappears or decreases to below the compression threshold. In this way, during the working process, the gate sealing assembly 500 is attached to the sealing seat under the action of the high-pressure medium to achieve a sealing effect, and the pressure of the medium itself is used for sealing, thereby completely closing the waterway, solving the technical problems that the opening and closing force required by the existing sealing structure is large and the possibility of leakage at the joints of the sealing strip is large.

[0059] Furthermore, in the two-way water-stop gate provided by the present invention, the gate sealing assembly 500 includes a sealing strip 5 and a main sealing lip 51, wherein the sealing strip 5 is an integrally formed frame structure, and the sealing strip 5 is provided with a groove along the length direction; at least one side of the sealing strip 5 is provided with a flange, and the flange forms the main sealing lip 51, and the main sealing lip 51 has an outward turning angle greater than 90°, and is attached to the gate frame 2 of the gate under the action of the medium pressure. In this way, since the sealing strip 5 is provided with a flange laterally as the main sealing lip 51, and the two sides of the groove are provided with protruding edges as the auxiliary sealing lips 52, and the outward turning angle of the flange is greater than 90°, then during the working process, the flange is pressed against the sealing seat under the action of the high-pressure medium to achieve a sealing effect, and the pressure of the medium itself is used for sealing, thereby completely closing the waterway, solving the technical problems that the opening and closing force required by the existing sealing structure is large, and the possibility of leakage at the joint of the sealing strip is large.

[0060] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0061] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0062] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0063] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the description of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field may, without departing from the scope of the technical features of the present invention, make partial changes or modifications to the technical contents disclosed in the present invention, and the equivalent embodiments without departing from the technical features of the present invention are still within the scope of the technical features of the present invention.

Claims

1. A two-way water-stop gate, characterized in that: include: The gate frame (2) comprises a sealing seat and two side beams (22), wherein the two side beams (22) extend in a vertical direction and are arranged side by side at intervals; the sealing seat comprises a vertical sealing seat (21) and a transverse sealing seat (25), wherein the vertical sealing seat (21) and the side beams (22) form a slide groove, and the transverse sealing seat (25) is arranged between the two side beams (22), and the vertical sealing seat (21) and the transverse sealing seat (25) form a four-sided frame-type sealing seat; A gate plate (3), the gate plate (3) being slidably mounted in the slide groove and moving along the slide groove under the drive of a power component; A gate sealing assembly (500) is slidably connected to the vertical sealing seat in a sealable manner, the gate sealing assembly (500) comprising a sealing strip (5), a main sealing lip (51) and a secondary sealing lip (52), the sealing strip (5) being mounted on the gate plate (3), the main sealing lip (51) being flanges arranged on both sides of the sealing strip (5), the angle formed between the main sealing lip (51) and the sealing strip being greater than 90°, the main sealing lip (51) being attached to the sealing seat of the gate frame (2) of the gate under the action of medium pressure, the groove of the sealing strip (5) being provided with protruding edges on both sides, the protruding edges forming the secondary sealing lip (52), the secondary sealing lip (52) being attached to the sealing seat of the gate frame (2) of the gate under the action of medium pressure; A pressure strip (4), wherein the pressure strip (4) is embedded in a groove of the sealing strip (5), the sealing strip (5) is fixed to a corresponding mounting surface through the pressure strip (4), and is fixedly connected to the gate plate (3) through bolts; a limit block, the limit block being mounted on the gate plate (3), and when the sealing strip (5) is at the compression limit position, the gate plate (3) is limited by the limit block; The vertical sealing seat (21) comprises a horizontal surface (24) and a first guide surface (23) transitionally connected to the horizontal surface (24), and the first guide surface (23) is inclined toward a side away from the gate plate (3); The transverse sealing seat (25) comprises a vertical surface (27), a second guide surface (26) transitionally connected to the upper end of the vertical surface (27), and a third guide surface (28) transitionally connected to the lower end of the vertical surface (27), and the second guide surface (26) and the third guide surface (28) are inclined toward a side away from the gate plate (3).

2. The two-way water-stop gate according to claim 1, characterized in that: The power component is a hydraulic cylinder (1).

3. The two-way water-stop gate according to claim 2, characterized in that: The gate frame (2) also includes: A cylinder seat crossbeam, the cylinder seat crossbeam being located at the top of the gate frame (2), the fixed end of the power component being mounted on the cylinder seat crossbeam, and the telescopic end of the power component being connected to the gate plate (3) near the lower edge.

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