Small low-resistance submerged dam structure

Abstract

The utility model discloses a small-size low-resistance submerged dam structure which comprises a base and a submerged dam body, a cavity is formed in the base, an opening is formed in the top of the base, the submerged dam body is arranged in the cavity of the base, a two-way screw arranged in the axial direction of the base is arranged at the bottom of the submerged dam body, and threads opposite in thread direction are arranged at the two ends of the two-way screw respectively. The bottom of the movable sleeve is supported by the bottom wall of the base, a supporting column is arranged between the bottom of the submerged dam body and the movable sleeve, and the two ends of the supporting column are hinged to the bottom of the submerged dam body and the movable sleeve respectively. When the distance between the bottom of the diving dam body and the movable sleeve is minimum, the distance between the hinge points at the two ends of the supporting column is maximum, when the distance between the bottom of the diving dam body and the movable sleeve is maximum, the hinge points at the two ends of the supporting column are located on the same vertical line, and a driving assembly penetrating through the side wall of the base to drive the two-way screw to rotate is arranged on one side of the base. The device has a lifting function, is high in stability and can be widely applied to the field of river regulation.

Description

Technical Field

[0001] The utility model relates to a river regulation structure, in particular to a small low-resistance submersible dam structure. Background Art

[0002] A submerged dam, also known as a submerged dam, refers to a river regulation structure located below the low water level that has the function of adjusting the water surface gradient and limiting riverbed scour. Submerged dams generally include submerged lock dams and submerged groin dams.

[0003] In recent years, the flood flow of mountainous rivers in my country is large, the water is deep and the water surface is wide during the flood season, while in the non-flood season, the flow is small, the water is shallow and the water surface is narrow, which affects the viewing of the river landscape. In order not to hinder the flow of floods, rubber dams are usually used to raise the water level during the non-flood season. However, mountainous rivers carry more bedload during flooding, and larger pieces of sand and gravel can easily damage rubber dam bags. Therefore, rubber dams are not suitable for mountainous rivers during the non-flood season. In this context, in order to solve this problem, the research and development of multifunctional, low-impact ecological hydraulic structures based on the characteristics of rivers is the current development focus.

[0004] The existing patent (Announcement No.: CN201420802474.3) is a liftable submerged dam. During the non-flood period, the river flow is small and the water level is low. The dam enters the flood retaining period. Water is pumped out by an external water pump to fill the pontoon with air. Under the action of buoyancy, the water retaining structure and the pontoon combination rise, and the raised dam will play the function of the dam. In case of heavy rainfall, before the flood forms, water is injected into the pontoon by an external water pump. As the amount of water in the pontoon increases, the water retaining structure and the pontoon combination gradually sink. When the pontoon is full of water, the water retaining structure will be completely hidden in the concrete reserved groove and return to its initial state, without hindering the flood flow.

[0005] In view of the above problems, existing patents have provided solutions. However, in actual use, the stability of the water retaining structure when it is inflated or filled with water through the pontoon is poor, and the water retaining structure does not have the function of reducing resistance, which needs to be improved. To this end, we propose a small low-resistance submersible dam structure. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology and provide a small-sized low-resistance submersible dam structure, which has a lifting function and strong stability.

[0007] The utility model provides a small low-resistance submersible dam structure, comprising a base with a cavity inside and an opening at the top and a submersible dam body arranged in the base cavity, a bidirectional screw arranged along the axial direction of the base is provided at the bottom of the submersible dam body, threads with opposite thread directions are provided at both ends of the bidirectional screw, coaxial sleeves are provided at both ends of the bidirectional screw with movable sleeves matching with the threads, the bottom of the movable sleeve is supported by the bottom wall of the base, a support column is provided between the bottom of the submersible dam body and the movable sleeve, the two ends of the support column are hinged to the bottom of the submersible dam body and the movable sleeve respectively, when the distance between the bottom of the submersible dam body and the movable sleeve is minimum, the distance between the hinge points at both ends of the support column is maximum, when the distance between the bottom of the submersible dam body and the movable sleeve is maximum, the hinge points at both ends of the support column are on the same vertical line, and a driving assembly is provided on one side of the base for passing through the side wall of the base to drive the bidirectional screw to rotate.

[0008] In the above technical solution, the driving assembly includes an installation box arranged on a side wall of a base and connected to a cavity of the base, a rotating rod longitudinally passing through the installation box, a worm located in the installation box and coaxially arranged at the bottom of the rotating rod, a worm wheel meshing with the worm wheel to form a worm gear system, a driving wheel coaxially connected to the worm wheel, a driven wheel coaxially connected to one end of a bidirectional screw, and a belt connecting the driving wheel and the driven wheel, the worm wheel is located below the submersible dam body in the base, and is connected to the bottom of the submersible dam body through a suspension rod, and the driven wheel and the other end of the bidirectional screw are connected to the inner wall of the base through bearings.

[0009] In the above technical solution, the bottom wall of the base is provided with a slideway arranged along its axial direction, and the bottom of each movable sleeve is provided with a slider, and the slider is slidably matched with the slideway.

[0010] In the above technical solution, a plurality of water outlets are axially arranged on both sides of the top of the submersible dam body, and through openings are evenly distributed on both sides of the submersible dam body, and the through opening on one side of the submersible dam body is connected to the water outlet on the same side.

[0011] In the above technical solution, through holes communicating with each through opening are provided on both sides of each through opening.

[0012] In the above technical scheme, a plurality of movable openings are axially provided in the middle of the top of the submersible dam body, the water outlets on both sides of the top of the submersible dam body correspond one to one, the water outlets on each side of the top of the submersible dam body correspond one to one, and the side walls on both sides of each movable opening are respectively provided with openings and grooves, the openings and grooves are connected and arranged in the horizontal direction, a sealing block is provided at the opening to cover it, the sealing block cooperates with the groove and can slide along the groove, the axial length of the sealing block is greater than the axial length of the opening, the sealing block is interference fit with the opening, a pull rod is provided in each movable opening, and the pull rod is fixedly connected to the corresponding sealing blocks on both sides.

[0013] In the above technical solution, the sealing block is axially provided with a sealing strip that cooperates with the inner wall of the hole.

[0014] In the above technical solution, the side wall of the opening at the top of the base is provided with a sealing strip which is interference fit with the circumferential side wall of the submersible dam body.

[0015] In the above technical solution, an installation box is sleeved on the outside of the installation box.

[0016] In the above technical solution, a dividing strip is axially provided on the top of the submersible dam body to separate the water outlet from the movable port, and the dividing strip is two in number.

[0017] The small low-resistance submersible dam structure of the utility model has the following beneficial effects:

[0018] 1. The utility model can realize the function of lifting the submersible dam body by setting the base, the submersible dam body, the installation box, the bidirectional screw, the movable sleeve, the support column and the cooperation between the drive assembly. Compared with the traditional liftable submersible dam, it has strong stability and practicality.

[0019] 2. The utility model can reduce the resistance of the submersible dam body and further improve the stability of the submersible dam body by setting the water outlet, the through port, the through hole, the sealing block, the movable port and the coordination between the pull rods, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the small-sized low-resistance submersible dam structure of the utility model;

[0021] Figure 2 It is a front cross-sectional structural schematic diagram of a small low-resistance submersible dam structure of the utility model;

[0022] Figure 3 It is a side sectional structural schematic diagram of a small low-resistance submersible dam structure of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the submersible dam body in the small-sized low-resistance submersible dam structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the partial structure enlargement of the submersible dam body in the small-sized low-resistance submersible dam structure of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the embodiments should not be construed as limiting the present invention.

[0026] See also Figures 1 to 5The utility model provides a technical solution: a small low-resistance submersible dam structure, comprising a base 1 and a submersible dam body 2 slidably arranged on the base 1, a mounting box 3 fixedly installed on the side of the base 1, a symmetrical bidirectional screw 4 rotatably arranged in the base 1, a movable sleeve 5 threadedly connected to the bidirectional screw 4, a support column 6 is arranged between the movable sleeve 5 and the submersible dam body 2, the ends of the support column 6 are respectively hingedly installed with the movable sleeve 5 and the submersible dam body 2, and a driving assembly 7 for driving the submersible dam body 2 to rise and fall is arranged on the base 1.

[0027] The device is installed as a whole between the river channels through the base 1. In the non-flood period, the river flow is small and the water level is low, and the submersible dam body 2 enters the water retaining period. The bidirectional screw 4 is driven by the driving assembly 7 to rotate in the base 1 at the same time. The rotation of the bidirectional screw 4 drives the movable sleeve 5 threadedly connected thereto to move closer to each other. The movable sleeves 5 move closer to each other and prop up the submersible dam body 2 from the base 1 through the support column 6 hingedly installed therewith, and the submersible dam body 2 is blocked by the submersible dam body 2. In case of heavy rainfall, before the flood is formed, the driving assembly 7 drives the bidirectional screw 4 to rotate so that the movable sleeves 5 move away from each other. The movable sleeves 5 move away from each other and pull the submersible dam body 2 into the base 1 through the support column 6. After the submersible dam body 2 completely enters the base 1, it does not cause any obstruction to the flood discharge. The submersible dam structure can realize the function of lifting and lowering the submersible dam body 2. Compared with the traditional liftable submersible dam, it has strong stability and practicality.

[0028] The driving assembly 7 includes a mounting box 71 arranged on the side of the base 1, a rotating rod 72 rotatably arranged on the mounting box 71, a worm 73 rotatably arranged in the mounting box 71, a worm wheel 74 rotatably arranged in the base 1, a driving wheel 75 and a driven wheel 76 rotatably arranged in the base 1, and a belt 77 sleeved on the driving wheel 75 and the driven wheel 76. The end of the rotating rod 72 is fixedly installed with the end of the worm 73, the worm 73 is meshed and driven by the worm wheel 74, and the ends of the bidirectional screw 4 are respectively It is fixedly installed with the worm gear 74 and the driven wheel 76, and the driving wheel 75 is fixedly installed with the worm gear 74; the rotating rod 72 is rotated, and the rotating rod 72 drives the worm 73 to rotate in the installation box 71, and the worm 73 drives the worm wheel 74 and the driving wheel 75 to rotate in the base 1, and the driving wheel 75 rotates through the belt 77 to drive the driven wheel 76 to rotate. The worm wheel 74 and the driven wheel 76 rotate at the same time to drive the bidirectional screw 4 to rotate at the same time, and can drive the bidirectional screw 4. The structure is simple and practical.

[0029] A slideway 8 is provided at the bottom of the base 1, and a slider 9 is fixedly installed on the movable sleeve 5. The slider 9 is slidably arranged on the slideway 8 and the size of the slider 9 is adapted to the size of the slideway 8. When the movable sleeve 5 moves, it drives the slider 9 fixedly installed therewith to slide on the slideway 8, which can improve the stability of the movable sleeve 5 when it moves, and further improve the stability of the submersible dam body 2 when it is raised or lowered.

[0030] The submersible dam body 2 is provided with evenly distributed water outlets 10, and the side of the submersible dam body 2 is provided with a through opening 11, which is connected with the water outlet 10. The submersible dam body 2 is provided with a through hole 12 on the side of the through opening 11, which is connected with the through opening 11; when the submersible dam body 2 enters the water retaining period, the water flow hits the side of the submersible dam body 2, which can make the water flow enter the through opening 11 and the through hole 12, and then flow into the water outlet 10 through the through hole 12 and the through opening 11 for discharge, which can effectively reduce the resistance of the submersible dam body 2, and has strong stability and practicality.

[0031] A sealing block 13 is slidably provided at the water outlet 10 of the submersible dam body 2, and a movable opening 14 is opened on the submersible dam body 2, and a pull rod 15 is slidably provided on the movable opening 14, and the end of the pull rod 15 is fixedly installed with the sealing block 13; by pulling the pull rod 15 on the movable opening 14, the pull rod 15 drives the sealing block 13 to move horizontally to open and connect the water outlet 10, so that water can flow in from the opening 11 on one side and be discharged from the opening 11 on the other side, which can further reduce the resistance of the submersible dam body 2 when the water flow is large, and has strong practicality.

[0032] The sides of the sealing block 13 are all paved with sealing rubber sheets, which can improve the sealing effect between the water outlets 10.

[0033] Sealing strips are laid on the sides of the opening of the base 1 to prevent water from entering the base 1.

[0034] Working principle: the device is installed as a whole between the river channels through the base 1. In the non-flood period, the flow rate in the river channel is small and the water level is low. The submersible dam body 2 enters the water retaining period, and the rotating rod 72 is rotated. The rotating rod 72 rotates to drive the worm 73 to rotate in the installation box 71. The rotation of the worm 73 drives the worm wheel 74 and the driving wheel 75 to rotate in the base 1. The driving wheel 75 rotates through the belt 77 to drive the driven wheel 76 to rotate. The worm wheel 74 and the driven wheel 76 rotate at the same time to drive the bidirectional screw 4 to rotate at the same time. The rotation of the bidirectional screw 4 drives the movable sleeve 5 threadedly connected to it to move closer to each other. The movable sleeve 5 approaches each other and props up the submersible dam body 2 from the base 1 through the support column 6 hingedly installed therewith, and water is blocked by the submersible dam body 2. When blocking water, when the water flow hits the side of the submersible dam body 2, the water flow can enter the through port 11 and the through hole 12, and then pass through Water flows into the water outlet 10 through the through hole 12 and the through port 11 and is discharged, which can effectively reduce the resistance of the submersible dam body 2. The pull rod 15 on the movable port 14 is pulled, and the pull rod 15 drives the sealing block 13 to move horizontally to open and connect the water outlet 10, so that water can enter from the through port 11 on one side and be discharged from the through port 11 on the other side, which can further reduce the resistance of the submersible dam body 2 when the water flow is large. In case of heavy rainfall, before the flood is formed, the bidirectional screw 4 is driven to rotate to make the movable sleeve 5 move away from each other. The movable sleeves 5 move away from each other and pull the submersible dam body 2 into the base 1 through the support column 6. After the submersible dam body 2 completely enters the base 1, it does not cause any obstruction to the flood discharge. The submersible dam structure can realize the function of lifting the submersible dam body 2 and also has the function of reducing the resistance of the submersible dam body 2. Compared with the traditional liftable submersible dam, it has strong stability and practicality.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A small low-resistance submersible dam structure, comprising a base (1) with a cavity inside and an open top, and a submersible dam body (2) arranged in the cavity of the base (1), characterized in that: The bottom of the submersible dam body (2) is provided with a bidirectional screw (4) arranged axially along the base (1), and the two ends of the bidirectional screw (4) are respectively provided with threads with opposite thread directions, and the two ends of the bidirectional screw (4) are respectively provided with coaxial sleeves with movable sleeves (5) that cooperate with the threads, and the bottom of the movable sleeve (5) is supported by the bottom wall of the base (1), and a support column (6) is provided between the bottom of the submersible dam body (2) and the movable sleeve (5), and the two ends of the support column (6) are respectively hinged to the bottom of the submersible dam body (2) and the movable sleeve (5), and when the distance between the bottom of the submersible dam body (2) and the movable sleeve (5) is the smallest, the distance between the hinge points at the two ends of the support column (6) is the largest, and when the distance between the bottom of the submersible dam body (2) and the movable sleeve (5) is the largest, the hinge points at the two ends of the support column (6) are on the same vertical line, and one side of the base (1) is provided with a driving assembly (7) that passes through the side wall of the base (1) and drives the bidirectional screw (4) to rotate.

2. The small low-resistance submersible dam structure according to claim 1, characterized in that: The driving assembly (7) comprises a mounting box (71) arranged on a side wall of a base (1) and connected to a cavity of the base (1), a rotating rod (72) longitudinally passing through the mounting box (71), a worm (73) located in the mounting box (71) and coaxially arranged at the bottom of the rotating rod (72), a worm wheel (74) meshing with the worm wheel (73) to form a worm gear system, a driving wheel (75) coaxially connected to the worm wheel (74), a driven wheel (76) coaxially connected to one end of the bidirectional screw (4), and a belt (77) connecting the driving wheel (75) and the driven wheel (76). The worm wheel (74) is located below the submersible dam body (2) in the base (1) and is connected to the bottom of the submersible dam body (2) through a suspension rod. The driven wheel (76) and the other end of the bidirectional screw (4) are both connected to the inner wall of the base (1) through bearings.

3. The small low-resistance submersible dam structure according to claim 2, characterized in that: The bottom wall of the base (1) is provided with a slideway (8) arranged along its axial direction, and the bottom of each movable sleeve (5) is provided with a slider (9), and the slider (9) is slidably matched with the slideway (8).

4. The small low-resistance submersible dam structure according to claim 3 is characterized in that: A plurality of water outlets (10) are axially arranged on both sides of the top of the submersible dam body (2), and through openings (11) are evenly distributed on both sides of the submersible dam body (2), and the through opening (11) on one side of the submersible dam body (2) is connected to the water outlet (10) on the same side.

5. The small low-resistance submersible dam structure according to claim 4, characterized in that: Through holes (12) communicating with each through opening (11) are provided on both sides thereof.

6. The small low-resistance submersible dam structure according to claim 5, characterized in that: A plurality of movable openings (14) are axially arranged in the middle of the top of the submersible dam body (2), and the water outlets (10) on both sides of the top of the submersible dam body (2) correspond one to one. The water outlets (10) on each side of the top of the submersible dam body (2) correspond one to one with the movable openings (14). The side walls on both sides of each movable opening (14) are respectively provided with an orifice and a groove. The orifice and the groove are connected and arranged in the horizontal direction. A sealing block (13) is provided at the orifice to cover it. The sealing block (13) cooperates with the groove and can slide along the groove. The axial length of the sealing block (13) is greater than the axial length of the orifice. The sealing block (13) is interference-fitted with the orifice. A pull rod (15) is provided in each movable opening (14), and the pull rod (15) is fixedly connected to the corresponding sealing blocks (13) on both sides.

7. The small low-resistance submersible dam structure according to claim 6, characterized in that: The sealing block (13) is axially provided with a sealing rubber strip that matches the inner wall of the hole.

8. The small low-resistance submersible dam structure according to claim 7, characterized in that: The top opening side wall of the base (1) is provided with a sealing strip which is interference-fitted with the circumferential side wall of the submersible dam body (2).

9. The small low-resistance submersible dam structure according to claim 8, characterized in that: The installation box (71) is sleeved with an installation box (3) on the outside.

10. The small low-resistance submersible dam structure according to claim 9, characterized in that: The top of the submersible dam body (2) is provided with a separation strip along the axial direction for separating the water outlet (10) from the movable port (14), and the separation strip is two in number.

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