Dam anti-seepage gate

Abstract

The dam anti-seepage gate comprises a frame body and a gate body, an anti-seepage assembly used for blocking sand is arranged on one side of the gate body, a self-locking assembly is arranged at the lower end of the gate body, the anti-seepage assembly comprises an anti-seepage door and a jacking mechanism, the jacking mechanism is arranged at the lower ends of the gate body and the anti-seepage door, and the two sides of the gate body and the two sides of the anti-seepage door are slidably connected with the frame body; the self-locking assembly comprises a limiting block, a positioning arm and a self-locking block. According to the technical scheme, the self-locking assembly is arranged at the bottom of the gate, so that the phenomenon that the gate is loosened after being impacted by water flow pressure in a closed state is prevented, and the effect of preventing leakage is achieved; and a combined structure of an anti-seepage door and a jacking mechanism is arranged on one side of the gate and used for stirring sediment accumulated at the bottom of the gate, and when the gate is opened, sediment and water are better discharged.

Description

Technical Field

[0001] This invention relates to the field of hydraulic gate technology, specifically a dam seepage prevention gate. Background Technology

[0002] A sluice gate is a low-head hydraulic structure built on rivers and canals to control flow and regulate water level. It is a control facility used to close and open water discharge channels, intercept water flow, control water level, regulate flow, and discharge sediment and floating debris. A sluice gate in a hydraulic engineering project usually includes a gate frame, a gate plate, and a drive mechanism that drives the gate plate to slide up and down. It is an important component of hydraulic structures.

[0003] During long-term use, the gate often becomes loose due to the pressure of the water flow, allowing water to flow through the gaps and causing leakage. Furthermore, the silt that accumulates at the bottom of the gate after leakage can easily enter the gaps, further preventing the gate from closing completely when shutting down, exacerbating the leakage problem and affecting the gate's interception effect. Summary of the Invention

[0004] The purpose of this invention is to provide a dam seepage prevention gate to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The present invention provides a dam seepage prevention gate, comprising a frame and a gate. A seepage prevention component for sand blocking is provided on one side of the gate, and a self-locking component is provided at the lower end of the gate. The seepage prevention component includes a seepage prevention gate and a lifting mechanism. The lifting mechanism is located at the lower end of the gate and the seepage prevention gate. Both sides of the gate and the seepage prevention gate are slidably connected to the frame. The self-locking component includes a limiting block, a positioning arm, and a self-locking block.

[0007] Furthermore, the limiting block is T-shaped and its lower end is fixedly connected to the frame, and there is a small gap between the upper end of the limiting block and the gate.

[0008] Furthermore, the self-locking block has a locking groove at its end away from the positioning arm, and the locking groove is locked and connected to the limiting block.

[0009] Furthermore, the positioning arm consists of two extended arms fixedly connected to the gate. The positioning arm is rotatably connected to the self-locking block via a connecting shaft, and the upper end of the positioning arm is fixedly connected to the gate.

[0010] Furthermore, the gate includes a front plate and a rear plate, the positioning arm is fixedly connected to the front plate, the rear plate is located close to the seepage prevention gate, the lower ends of the front plate and the rear plate have a height difference, and the self-locking assembly is located at the lower end of the front plate.

[0011] Furthermore, the lower end of the rear plate is provided with a plurality of equidistant limiting extrusion grooves, the upper end surface of the limiting extrusion grooves is inclined, and the upper end of the rear plate is provided with a sand-blocking slope.

[0012] Furthermore, the lower end of the seepage-proof gate is provided with a limiting lifting groove and an avoidance groove corresponding to the limiting squeezing groove, and the upper end of the seepage-proof gate has a second sand-blocking slope with the same inclination angle as the first sand-blocking slope.

[0013] Furthermore, the lifting mechanism includes a positioning shaft, on which a plurality of lifting blocks are rotatably connected, and at both ends of the positioning shaft are fixed plates, and the clearance groove is provided correspondingly to the positioning shaft.

[0014] Furthermore, the positioning shaft is disposed at the lower end of the seepage-proof door via the fixing plate, and the positioning shaft is rotatably connected to the lifting block.

[0015] Furthermore, the lifting block is V-shaped and includes a pressing section and a lifting section.

[0016] Beneficial effects: The structural design of setting a self-locking component at the bottom of the gate through this technical solution prevents the gate from loosening due to the impact of water flow pressure when it is closed, thus preventing leakage; and by setting a combination structure of a seepage prevention gate and a lifting mechanism on one side of the gate, the silt accumulated at the bottom of the gate is stirred up, and the sand is drained when the gate is opened. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a partial structural diagram of the present invention;

[0019] Figure 3 This is a partial structural diagram of the present invention from another angle;

[0020] Figure 4 This is another partial structural cross-sectional view of the present invention;

[0021] Figure 5 This is an exploded view of the self-locking component structure of the present invention.

[0022] Figure Labels

[0023] 1-Frame, 2-Gate, 21-Front plate, 22-Rear plate, 221-Limiting squeezing groove, 222-Sand-blocking slope one, 3-Seepage prevention component, 31-Seepage prevention gate, 311-Limiting lifting groove, 312-Avoidance groove, 313-Sand-blocking slope two, 32-Lifting mechanism, 321-Positioning shaft, 322-Lifting block, 3221-Pressing section, 3222-Lifting section, 323-Fixing plate, 4-Self-locking component, 41-Limiting block, 42-Positioning arm, 43-Self-locking block, 431-Positioning groove. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] Example

[0026] like Figure 1-5 As shown, a dam seepage prevention gate includes a frame 1 and a gate 2. A seepage prevention component 3 for sand blocking is provided on one side of the gate 2, and a self-locking component 4 is provided at the lower end of the gate 2. The seepage prevention component 3 includes a seepage prevention gate 31 and a lifting mechanism 32. The lifting mechanism 32 is located at the lower end of the gate 2 and the seepage prevention gate 31. Both sides of the gate 2 and the seepage prevention gate 31 are slidably connected to the frame 1. The self-locking component 4 includes a limiting block 41, a positioning arm 42 and a self-locking block 43.

[0027] like Figure 1-5 As shown, the self-locking component 4 is located below the gate 2. The limiting block 41 is T-shaped and its lower end is fixedly connected to the frame 1. There is a small gap between the upper end of the limiting block 41 and the gate 2. Both ends of the limiting block 41 are located close to the self-locking block 43. The end of the self-locking block 43 away from the positioning arm 42 has a locking groove 431. The locking groove 431 and the limiting block 41 are locked together. The self-locking block 43 is locked after the locking groove 431 on the self-locking block 43 engages with the side and lower end face of the limiting block 41. The positioning arm 42 consists of two extended arms fixedly connected to the gate 2. The positioning arm 42 is rotatably connected to the self-locking block 43 through a connecting shaft. The upper end of the positioning arm 42 is fixedly connected to the gate 2. The lower end is rotatably connected to the self-locking block 43, which is located in the middle of the positioning arm 42, and the positioning arm 42 and the limiting block 41 are close to each other. When locked, the positioning arm 42 moves downward through the gate 2, and the side of the self-locking block 43 moves downward together with the side of the limiting block 41. When the self-locking block 43 drops below the limiting block 41, it moves slightly upward through the positioning arm 42 again, so that the locking groove 431 on the self-locking block 43 is engaged with the limiting block 41. Then the positioning arm 42 stops moving. When unlocking, the positioning arm 42 drives the self-locking block 43 to continue to move downward. After the self-locking block 43 drops, it automatically rotates downward with gravity and is in the same straight line as the positioning arm 42, disengaging from the limiting block 41. When it rises again, the unlocking is completed.

[0028] like Figure 1-5 As shown, the gate 2 includes a front plate 21 and a rear plate 22. The positioning arm 42 is fixedly connected to the front plate 21. The rear plate 22 is located near the seepage prevention gate 31. There is a height difference between the lower ends of the front plate 21 and the rear plate 22. The self-locking component 4 is located at the lower end of the front plate 21. The self-locking component 4 is installed by the height difference between the front plate 21 and the rear plate 22. The lower end of the rear plate 22 is provided with multiple equidistant limiting squeezing grooves 221. The upper end surface of the limiting squeezing grooves 221 is set with an inclined surface. The upper end of the rear plate 22 is provided with a sand-blocking slope 222. The limiting squeezing grooves 221, the limiting lifting grooves 311, and the lifting blocks 322 are all set one-to-one.

[0029] like Figure 1-5 As shown, the lower end of the seepage barrier gate 31 is provided with a limiting lifting groove 311 and a clearance groove 312 corresponding to the limiting squeezing groove 221. The upper end of the seepage barrier gate 31 has a second sand-blocking slope 313 with the same inclination angle as the first sand-blocking slope 222. When the seepage barrier gate 31 rises, the lifting block 322 lifts the limiting lifting groove 311 upward, causing the seepage barrier gate 31 to move upward. The vertical movement height of the seepage barrier gate 31 is consistent with the height difference between the second sand-blocking slope 313 and the first sand-blocking slope 222. When the seepage barrier gate 31 falls, the second sand-blocking slope 313 connects with the first sand-blocking slope 222 to form an overall slope. Through the vertical tangential movement of the first sand-blocking slope 222 and the second sand-blocking slope 313, the mud and sand are stirred up, which can prevent the mud and sand from accumulating at the bottom of the gate and affecting the opening of the gate.

[0030] like Figure 1-5 As shown, the lifting mechanism 32 includes a positioning shaft 321, on which multiple lifting blocks 322 are rotatably connected. Fixing plates 323 are provided at both ends of the positioning shaft 321. A clearance groove 312 is correspondingly provided with the positioning shaft 321. The positioning shaft 321 is positioned at the lower end of the seepage-proof door 31 via the fixing plates 323. The positioning shaft 321 is rotatably connected to the lifting blocks 322. The lifting blocks 322 are V-shaped and include a pressing section 3221 and a... The lifting section 3222 and the pressing section 3221 are positioned corresponding to the limiting extrusion groove 221 at the lower end of the rear plate 22. The lifting section 3222 is positioned corresponding to the limiting lifting groove 311 at the lower end of the seepage prevention gate 31. When the gate 2 moves downward, it presses the pressing section 3221 through the limiting extrusion groove 221. Subsequently, the lifting section 3222 at the other end of the lifting block 322 rotates and pushes upward, pushing against the limiting lifting groove 311, so that the seepage prevention gate 31 rises as a whole.

[0031] The specific steps for using the dam seepage prevention gate provided in this invention are as follows:

[0032] Closing the gate: Gate 2 moves downward via the drive mechanism, locking itself to the gate frame 1 via the self-locking assembly 4 at the lower end of gate 2. When locked, the positioning arm 42 moves downward via gate 2, and the side of the self-locking block 43 moves downward together with the side of the limiting block 41. When the self-locking block 43 descends below the limiting block 41, the positioning arm 42 moves slightly upward again, causing the locking groove 431 on the self-locking block 43 to engage with the limiting block 41. The positioning arm 42 then stops, completing the locking process. This self-locking assembly 4 securely connects the bottom of gate 2 to the frame 1, preventing gate 2 from loosening due to water pressure impact. To prevent leakage; and during the downward movement of the gate 2, its lower end squeezes the lifting mechanism 32, and the lifting block 322 in the lifting mechanism 32 lifts the seepage prevention gate 31 upward. The lower pressing section 3221 of the lifting block 322 presses downward, and the lifting block 322 rotates around the positioning shaft 321 as the fulcrum. Subsequently, its lifting section 3222 tilts upward, lifting the limiting lifting groove 311 at the lower end of the seepage prevention gate 31. The seepage prevention gate 31 rises, so that the sand-blocking slope 213 on the upper end surface of the seepage prevention gate 31 and the sand-blocking slope 222 on the upper end surface of the gate 2 rear plate 22 form a height difference. This height difference is used to stir up the mud and sand when the gate is opened.

[0033] Opening the gate: The gate 2 moves slightly downward through the drive mechanism, and the positioning arm 42 drives the self-locking block 43 to continue moving downward. After the self-locking block 43 descends, it automatically rotates downward with gravity and is in the same straight line as the positioning arm 42, disengaging from the limit block 41. The gate 2 moves slightly upward again through the drive mechanism, and when the self-locking block 43 rises again, it unlocks from the limit block 41. At the same time, the gate 2, after rising, disengages from the lifting block 322. The lifting block 322 automatically rotates back, and the seepage prevention gate 31 descends. During the descent, the mud and sand are stirred up. After descending, the mud and sand are placed on the same slope as the sand-blocking slope 222. The stirred mud and sand fall down with the slope, preventing the mud and sand from accumulating at the bottom of the gate 2, which is conducive to sand discharge and drainage.

[0034] In summary, this technical solution utilizes a self-locking component 4 at the bottom of the gate 2 to prevent the gate 2 from loosening due to water pressure impact when closed, thus preventing leakage. Furthermore, the combination of a seepage-proof gate 31 and a lifting mechanism 32 on one side of the gate 2 agitates the sediment accumulated at the bottom of the gate 2, facilitating sand and water drainage when the gate is opened. The self-locking component 4, the lifting mechanism 31, and the lower part of the seepage-proof gate 31 are all housed within the frame 1, with their upward extensions slightly higher than the frame 1.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dam sluice comprising a frame (1) and a gate (2), characterized in that: The gate (2) is provided with an anti-seepage assembly (3) for sand blocking on one side, and a self-locking assembly (4) is arranged at the lower end of the gate (2), the anti-seepage assembly (3) comprises an anti-seepage door (31) and a jacking mechanism (32), the jacking mechanism (32) is arranged at the lower end of the gate (2) and the anti-seepage door (31), and the gate (2) and the anti-seepage door (31) are slidably connected with the frame (1), the self-locking assembly (4) comprises a limiting block (41), a positioning arm (42) and a self-locking block (43).

2. A dam seepage barrier gate according to claim 1, characterised in that: The limiting block (41) is T-shaped and fixedly connected with the frame (1) at the lower end, and a gap is formed between the upper end of the limiting block (41) and the gate (2).

3. A dam seepage barrier gate according to claim 1, characterized in that: The self-locking block (43) is provided with a clamping groove (431) at the end away from the positioning arm (42), and the clamping groove (431) is clampedly connected with the limiting block (41).

4. A dam seepage barrier gate according to claim 1, characterized in that: The positioning arm (42) is two extension arms fixedly connected with the gate (2), and the positioning arm (42) is rotatably connected with the self-locking block (43) through a connecting shaft, and the upper end of the positioning arm (42) is fixedly connected with the gate (2).

5. A dam seepage barrier gate according to claim 4, characterised in that: The gate (2) comprises a front plate (21) and a rear plate (22), the positioning arm (42) is fixedly connected with the front plate (21), the rear plate (22) is arranged close to the anti-seepage door (31), the front plate (21) and the rear plate (22) have a height difference at the lower end, and the self-locking assembly (4) is arranged at the lower end of the front plate (21).

6. A dam seepage barrier gate according to claim 5, characterised in that: A plurality of limiting extrusion grooves (221) are arranged at the lower end of the rear plate (22) at equal distances, the upper end face of the limiting extrusion groove (221) is arranged in an inclined manner, and a sand blocking slope one (222) is arranged at the upper end of the rear plate (22).

7. A dam seepage barrier gate according to claim 6, characterised in that: A limiting jacking groove (311) and a avoiding groove (312) corresponding to the limiting extrusion groove (221) are arranged at the lower end of the anti-seepage door (31), and the anti-seepage door (31) has a sand blocking slope two (313) with the same inclination angle as the sand blocking slope one (222) at the upper end.

8. A dam seepage barrier gate according to claim 7, characterised in that: The jacking mechanism (32) comprises a positioning shaft (321), a plurality of jacking blocks (322) are rotatably connected with the positioning shaft (321), and the positioning shaft (321) is provided with a fixed plate (323) at both ends.

9. A dam seepage barrier gate according to claim 8, characterised in that: The positioning shaft (321) is arranged at the lower end of the anti-seepage door (31) through the fixed plate (323), and the positioning shaft (321) is rotatably connected with the jacking block (322).

10. A dam seepage barrier gate according to claim 9, characterised in that: The jacking block (322) is arranged in a V shape, and the jacking block (322) comprises a pressing section (3221) and a jacking section (3222).

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