Intercepting device for water conservancy construction

Abstract

The invention discloses a cut-off device for water conservancy construction, and relates to the technical field of water conservancy construction, the cut-off device comprises a cut-off plate main body, a telescopic assembly is arranged on the cut-off plate main body, the telescopic assembly comprises a sealing strip fixedly connected to the bottom of the cut-off plate main body, a limiting groove is formed in the top of the cut-off plate main body, and a plurality of positioning grooves are formed in the bottom of the groove wall of the limiting groove; the outer surface of the intercepting plate body is sleeved with two first sleeve plates, limiting blocks are fixedly connected to the tops of the faces, close to each other, of the two first sleeve plates, and the limiting blocks slide in the limiting grooves. After the first sleeve plate is adjusted to a proper position, namely the width of the first sleeve plate is matched with that of the reserved estuary, the positioning blocks abut against the corresponding positioning grooves at the moment, positioning of the first sleeve plate on the intercepting plate body is achieved, and the reserved estuary with different widths can be intercepted by adjusting the position of the first sleeve plate on the intercepting plate body; and the closure construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy construction, in particular to a flow intercepting device for water conservancy construction. Background Art

[0002] In the construction of water conservancy projects, a phased construction strategy is usually adopted based on factors such as the scale, complexity and construction conditions of the project. After the cofferdam is successfully closed, a river mouth is often reserved, and the river flow is intercepted and regulated with the help of intercepting plates, which is convenient for construction at different locations in the river and a reasonable arrangement of the construction progress. In some small, temporary water conservancy construction projects, after the cofferdam is closed, the construction area and construction time are determined, and the subsequent construction process does not require the water to flow through the reserved river mouth. After accurate water flow calculations, construction progress arrangements and other comprehensive considerations, it is determined that the upstream water level will not be too high and require discharge. In this case, a non-openable intercepting plate can be used. This intercepting plate only needs to block the water flow, and its structure is relatively simple, which can reduce costs.

[0003] In the current construction of water conservancy projects, the interception operation is carried out on-site at a complex and changeable construction site. The interception space reserved by the cofferdam will be affected by many factors, such as the accumulation of errors in the previous construction, changes in the river bank caused by water scouring, etc., and the existing interception plates are mostly designed with a fixed length, which makes it impossible to quickly and accurately adapt to the actual reserved estuary width. In order to adapt to the reserved interception space, multiple interception plates need to be spliced, or they need to be customized according to the size of the reserved estuary. If spliced, the interception device is not stable, and the connection strength at the splicing is relatively weak. Under the long-term and strong impact of the water flow, it is very easy to loosen, deform or even break, which will cause a dam breach. In addition, the splicing construction process is cumbersome and complicated, and the splicing quality needs to be frequently checked and adjusted during the construction process, which will affect the construction progress. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a intercepting device for water conservancy construction.

[0005] The technical solution is as follows: The intercepting device for water conservancy construction comprises an intercepting plate body, a telescopic component is arranged on the intercepting plate body, the telescopic component comprises a sealing strip fixedly connected to the bottom of the intercepting plate body, a limiting groove is arranged on the top of the intercepting plate body, a plurality of positioning grooves are arranged on the bottom of the groove wall of the limiting groove, two first sets of plates are sleeved on the outer surface of the intercepting plate body, the tops of the two first sets of plates close to each other are fixedly connected to limiting blocks, the limiting blocks slide inside the limiting groove, a cavity is arranged inside the limiting blocks, a first spring is fixedly connected inside the cavity of the limiting blocks, a positioning block is fixedly connected to the bottom of the first spring, the positioning block slides inside the cavity of the limiting block, the bottom of the positioning block conflicts with the positioning groove, the sides of the two first sets of plates away from each other are set to rubber material, and a positioning component for fixing the first sets of plates is arranged on the top.

[0006] Furthermore, two ends of the sealing strip protrude from two sides of the intercepting plate body, and a groove matching the sealing strip is formed at the bottom of the first set of plates.

[0007] Furthermore, the positioning assembly includes a top box fixedly connected to the top of the first set of plates, a positioning rod is slidably connected to the inside of the top box, a spring groove is provided inside the positioning rod, a second spring is fixedly connected between the spring groove and the inner wall of the top box, and one end of the positioning rod located outside the top box is fixedly connected to a sleeve, and a fixing nail is inserted into the sleeve.

[0008] Furthermore, a sliding block is fixedly connected to the outer side of the positioning rod, and a sliding groove for the sliding block to slide is provided on the inner side of the top box.

[0009] Furthermore, an early warning component is provided on the first set of panels, and the early warning component includes two side panels respectively fixedly connected to the two first sets of panels, two lifting slots are provided on the side panels, a push switch is fixedly connected to the slot top of the lifting slot, a lifting block is slidably connected inside each lifting slot, a fixed plate is fixedly connected between the two lifting blocks on the same side panel, an airbag is fixedly connected to the side of the fixed plate away from the lifting block, an extension plate is fixedly connected to the side where the two fixed plates are close to each other, and an alarm is fixedly connected to the top of the extension plate.

[0010] Furthermore, a support assembly is provided on a side of the first set of plates away from the airbag, and the support assembly includes a fixed seat fixedly connected to the first set of plates, a support tube is rotatably connected inside the fixed seat, a strip groove is provided in the support tube, a plurality of equally distributed limit rings are fixedly connected to the outer surface of the support tube, a support rod is slidably connected inside the support tube, a boss is fixedly connected to the top of the support rod, a rotating ring is sleeved on the outer side of the support tube, a block is fixedly connected to the inner ring of the rotating ring, a positioning claw is rotatably connected to the bottom of the support rod, two adjusting claws are rotatably connected to the positioning claw, the boss slides inside the strip groove, and the boss passes through the strip groove and extends to the outside of the support tube, a rotating groove is provided at one end of the boss located on the outside of the support tube, a convex ring is fixedly connected to the inner ring surface of the rotating ring, and the rotating ring is rotatably connected to the rotating groove of the boss through the convex ring.

[0011] Furthermore, the thickness of the clamping block is adapted to the gap between two adjacent limiting rings in the same vertical direction, and the bottoms of the adjusting claw and the positioning claw are fixedly connected with ground nails.

[0012] From the above, the beneficial effects of the present invention are as follows: After the first set of plates is adjusted to a suitable position, that is, after it is adapted to the width of the reserved river mouth, the first set of plates is positioned on the intercepting plate body by the positioning block contacting with the corresponding positioning groove. By adjusting the position of the first set of plates on the intercepting plate body, the reserved river mouths of different widths can be intercepted, thereby improving the efficiency of interception construction; The positioning rod is set up in the groove on the cofferdam, and the fixing nail is hammered by an external tool so that the fixing nail moves downward relative to the casing and is nailed into the groove of the cofferdam, thereby fixing the positioning rod. The elastic force of the second spring can make the first set of plates fit closely with the soil layer of the cofferdam, so that the first set of plates and the intercepting plate body can be positioned at the intercepting position of the reserved estuary, thereby improving the stability of the first set of plates and the intercepting plate body in intercepting the reserved estuary; The support tube and the support rod form a triangular support for the first set of plates, which can provide additional support for the first set of plates and the intercepting plate body, thereby preventing the first set of plates and the intercepting plate body from being sunken or bent under the continuous pressure of the water flow, thereby improving the stability of the first set of plates and the intercepting plate body; The alarm is activated by the lifting block pressing the switch, and the alarm will emit a flashing warning light and a warning sound to remind construction workers at the construction site that there is too much water and to evacuate the construction site in time, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of the intercepting plate body, the sealing strip and the first set of plates of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 4 It is a three-dimensional schematic diagram of the side plate, lifting slot and lifting block of the present invention; Figure 5 It is a three-dimensional schematic diagram of the lifting slot, the push switch and the alarm of the present invention; Figure 6 It is a three-dimensional schematic diagram of the fixing seat, sleeve and fixing nail of the present invention; Figure 7 It is a three-dimensional schematic diagram of the fixing seat, the support tube and the limiting ring of the present invention; Figure 8 It is a three-dimensional schematic diagram of the strip groove, rotating ring, clamping block and boss of the present invention; Fig. 9 It is a three-dimensional schematic diagram of the support rod, the positioning claw and the adjusting claw of the present invention.

[0014] Among them, the accompanying drawings in the present invention are: 1. The main body of the interceptor plate; 21, sealing strip; 22, limiting groove; 23, positioning groove; 24, first set of plates; 25, limiting block; 26, first spring; 27, positioning block; 31, top box; 32, positioning rod; 33, spring slot; 34, second spring; 35, sleeve; 36, fixing nail; 41, side panel; 42, lifting slot; 43, push switch; 44, lifting block; 46, telescopic plate; 47, fixed plate; 48, airbag; 49, alarm; 51, fixed seat; 52, support tube; 53, strip groove; 54, limit ring; 55, support rod; 56, boss; 57, rotating ring; 58, block; 59, positioning claw; 510, adjusting claw. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 4As shown, the intercepting device for water conservancy construction includes an intercepting plate body 1, on which a telescopic component for adapting to reserved estuaries of different sizes is arranged, and the telescopic component includes a sealing strip 21 fixedly connected to the bottom of the intercepting plate body 1, and both ends of the sealing strip 21 protrude from both sides of the intercepting plate body 1. A limiting groove 22 is provided on the top of the intercepting plate body 1, and a plurality of positioning grooves 23 arranged in a linear array are provided at the bottom of the groove wall of the limiting groove 22. The outer surface of the intercepting plate body 1 is sleeved with two first sets of plates 24, and the two first sets of plates 24 are both set to rubber material on the side away from each other, so as to fit closely on the soil surface of the cofferdam. A groove compatible with the sealing strip 21 is provided at the bottom of the plate 24. When the first set of plates 24 slides on the outer surface of the intercepting plate body 1, the sealing strip 21 will seal the gap between the two first sets of plates 24. The tops of the two first sets of plates 24 that are close to each other are fixedly connected to the limiting blocks 25. The limiting blocks 25 slide inside the limiting groove 22. A cavity is provided inside the limiting blocks 25. A first spring 26 is fixedly connected inside the cavity of the limiting blocks 25. A positioning block 27 is fixedly connected to the bottom of the first spring 26. The positioning block 27 slides inside the cavity of the limiting blocks 25, and the bottom of the positioning block 27 conflicts with the positioning groove 23.

[0017] like Figures 1 to 3 As shown, the tops of the two first sets of plates 24 are each provided with a positioning assembly for positioning the first sets of plates 24 to prevent loosening, the positioning assembly includes a top box 31 fixedly connected to the top of the first set of plates 24, a positioning rod 32 is slidably connected inside the top box 31, a slider is fixedly connected to the outside of the positioning rod 32, a sliding groove for the slider to slide is provided on the inner side of the top box 31, so as to prevent the positioning rod 32 from slipping off from the inside of the top box 31, a spring groove 33 is provided inside the positioning rod 32, a second spring 34 is fixedly connected between the spring groove 33 and the inner wall of the top box 31, and a sleeve 35 is fixedly connected to one end of the positioning rod 32 located outside the top box 31, and a fixing nail 36 is inserted into the sleeve 35.

[0018] like Figure 1 , Figure 4 and Figure 5As shown, an early warning component is provided on the first set of plates 24, and the early warning component includes two side plates 41 respectively fixedly connected to the two first set of plates 24, two lifting slots 42 are provided on the side plates 41, and a push switch 43 is fixedly connected to the slot top of the lifting slot 42, and a lifting block 44 is slidably connected inside each lifting slot 42, and a fixed plate 47 is fixedly connected between the two lifting blocks 44 on the same side plate 41, and an airbag 48 is fixedly connected to the side of the fixed plate 47 away from the lifting block 44, and a telescopic plate 46 is fixedly connected to the side of the two fixed plates 47 close to each other, and the telescopic plate 46 includes a fixed end and a telescopic end, and a reset spring is provided between the fixed end and the telescopic end, and the fixed end and the telescopic end of the telescopic plate 46 are respectively fixedly connected to the two fixed plates 47, and an alarm 49 is fixedly connected to the top of the fixed end of the telescopic plate 46.

[0019] like Figures 6 to 9 As shown, a support assembly is provided on one side of the first set plate 24 away from the airbag 48, and the support assembly includes a fixing seat 51 fixedly connected to the outer surface of the first set plate 24, and a support tube 52 is rotatably connected inside the fixing seat 51, and the support tube 52 is provided with a strip groove 53, and the outer surface of the support tube 52 is fixedly connected to a limiting ring 54 arranged in a linear array, and the support tube 52 is slidably connected to the inside of the support tube 52, and a boss 56 is fixedly connected to the top of the support rod 55, and the boss 56 slides inside the strip groove 53, and the boss 56 passes through the strip groove 53 and extends to the outside of the support tube 52, and the boss 56 is located on the outside of the support tube 52 A rotating groove is provided at one end, a rotating ring 57 is sleeved on the outer side of the support tube 52, a convex ring is fixedly connected to the inner ring surface of the rotating ring 57, the rotating ring 57 is rotatably connected to the rotating groove of the boss 56 through the convex ring, a clamping block 58 is fixedly connected to the inner ring of the rotating ring 57, the thickness of the clamping block 58 is adapted to the gap between two adjacent limit rings 54 in the same vertical direction, a positioning claw 59 is rotatably connected to the bottom of the support rod 55, and two adjusting claws 510 are rotatably connected to the outer surface of the positioning claw 59, and the bottom of the adjusting claw 510 and the positioning claw 59 are fixedly connected with ground nails for being inserted into the soil to maintain the stability of the support of the support assembly.

[0020] It should be noted that universal joints are used to connect the support tube 52 and the fixing seat 51, as well as the positioning claw 59 and the support rod 55. The universal joint connection between the positioning claw 59 and the support rod 55 is used to adapt to different riverbed shapes to ensure that the ground nails on the adjusting claw 510 can be nailed to the riverbed, wherein the riverbed is the part of the river valley that is submerged by water, and the riverbed is mainly composed of gravel, sand and other materials.

[0021] In combination with the above preferred embodiments, the following is the entire working process and working principle of the above embodiments: The initial state is: The two first sets of plates 24 are fitted together on their sides close to each other, and the intercepting plate body 1 is in a wrapped state. The positioning rod 32 does not extend to the outside of the top box 31. At this time, the second spring 34 is in an unstretched state, and the first spring 26 is in a compressed state, so that the positioning block 27 is in contact with the inside of one of the positioning grooves 23, the lifting block 44 is in the lowest position of the lifting groove 42, the airbag 48 is in the lowest position, the support tube 52 is in a vertical state, and the support rod 55 is located at the highest position inside the support tube 52. The support rod 55 makes the rotating ring 57 also in the highest position through the boss 56.

[0022] Telescopic components to adapt to the width of the estuary: During the construction of the cofferdam of the water conservancy project, due to the different widths of the reserved river mouths, the two first sets of plates 24 can be pulled to make the two first sets of plates 24 slide to both sides on the intercepting plate body 1. During the sliding process, the first set of plates 24 will drive the limit block 25 to slide inside the limit groove 22. At this time, the limit block 25 will synchronously drive the positioning block 27 in its cavity to move inside the limit groove 22. When the positioning block 27 moves, it will squeeze the positioning groove 23 and slide upward, and at the same time further compress the first spring 26. When the positioning block 27 continues to slide, it will contact the lower spring 26. The position of one positioning groove 23 coincides, and at this time, the positioning block 27 moves downward in the cavity of the limit block 25 under the elastic return action of the first spring 26, and reciprocates in this way. When the first set of plates 24 is adjusted to a suitable position, that is, to match the reserved estuary width, the positioning block 27 is in contact with the corresponding positioning groove 23 to achieve the positioning of the first set of plates 24 on the intercepting plate body 1. By adjusting the position of the first set of plates 24 on the intercepting plate body 1, reserved estuaries of different widths can be intercepted, thereby improving the efficiency of interception construction.

[0023] It should be noted that: the side of the two first sets of plates 24 that are away from each other is set to rubber material, which can fit with the soil layer of the cofferdam. After the positioning block 27 and the positioning groove 23 limit the first set of plates 24, the rubber material part of the first set of plates 24 can fit tightly on the surface of the soil layer of the cofferdam, so that after the first set of plates 24 are unfolded, the overall length of the device can be slightly longer than the width of the reserved estuary of the cofferdam. The rubber material part of the first set of plates 24 is deformed when it fits on the surface of the soil layer, thereby being able to effectively intercept the water flow. When placing the first set of plates 24 and the intercepting plate body 1, the support component needs to be oriented downstream of the water flow direction of the reserved estuary of the cofferdam, and the early warning component needs to be oriented upstream of the water flow direction of the reserved estuary of the cofferdam.

[0024] The positioning assembly fixes the first set of plates 24: After adjusting the position of the first set of plates 24, the positioning rod 32 can be pulled at this time, so that the positioning rod 32 moves inside the top box 31 to the side away from the alarm 49, that is, moves outward. When the positioning rod 32 moves outward, the second spring 34 is stretched, and then the unfolded device is placed at the reserved estuary of the cofferdam. The construction personnel must dig a groove compatible with the positioning rod 32 near the reserved estuary of the cofferdam, and then set the positioning rod 32 in the groove on the cofferdam, and hammer the fixing nail 36 with an external tool, so that the fixing nail 36 moves downward relative to the sleeve 35 and is nailed into the groove of the cofferdam, and then fill the groove to fix the positioning rod 32. The elastic force of the second spring 34 can make the first set of plates 24 fit closely with the soil layer of the cofferdam, so that the first set of plates 24 and the intercepting plate body 1 can be positioned at the interception position of the reserved estuary, thereby improving the stability of the first set of plates 24 and the intercepting plate body 1 in intercepting the reserved estuary.

[0025] The support assembly supports the first set of plates 24 and the intercepting plate body 1: After the first set of plates 24 and the intercepting plate body 1 intercept the reserved river mouth of the cofferdam, the worker can hold the support tube 52 to rotate the support tube 52 so that a triangular support is formed between the support tube 52 and the first set of plates 24. Then the worker can pull the support rod 55 from the inside of the support tube 52 to the outside, and the support rod 55 will drive the boss 56 to move inside the strip groove 53 toward the side away from the fixed seat 51, and the boss 56 drives the rotating ring 57 to move on the outer surface of the support tube 52 toward the end away from the fixed seat 51. After the support rod 55 moves a certain distance inside the support tube 52, the positioning claw 59 is abutted against the riverbed, and the adjusting claw 510 is rotated at the same time, so that the positioning claw 59 and the adjusting claw 510 are abutted against the riverbed at the same time, and then the positioning claw 59 and the adjusting claw 510 are adjusted. The ground nails at the bottom are driven into the riverbed, and finally the rotating ring 57 is rotated to make the rotating ring 57 rotate on the boss 56. When the rotating ring 57 rotates, the block 58 inside it will be driven to rotate. When the block 58 rotates to the gap between the two limit rings 54, the limit ring 54 will limit the block 58. The block 58 limits the support rod 55 through the boss 56 through the rotating ring 57, so that the support rod 55 cannot slide inside the support tube 52. At this time, the support tube 52 and the support rod 55 form a triangular support for the first set of plates 24, which can provide additional support for the first set of plates 24 and the intercepting plate body 1, avoid the first set of plates 24 and the intercepting plate body 1 from being dented or bent under the continuous pressure of the water flow, and improve the stability of the first set of plates 24 and the intercepting plate body 1.

[0026] Warning component warning: During a long period of diversion, if the water level of the river changes, that is, rainfall or tributary blockage causes the water level to gradually rise, as the water level rises, the airbag 48 will contact the diverted water flow. In the process of the continuous rise of the water level, the airbag 48 is acted upon by the buoyancy of the water and moves upward. The airbag 48 drives the lifting block 44 to gradually move upward inside the lifting groove 42 through the fixed plate 47. If the water level continues to rise, the airbag 48 will drive the lifting block 44 to continue to move upward through the fixed plate 47. The lifting block 44 continues to rise inside the lifting groove 42. When the lifting block 44 moves to the highest position of the lifting groove 42, the lifting block 44 will contact the push switch 43. The lifting block 44 contacts the push switch 43, so that the alarm 49 is activated. The alarm 49 will emit a flashing warning light and a warning sound to remind the construction personnel at the construction site that there is too much water and to remind the construction personnel to evacuate the construction site in time, thereby improving safety.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water conservancy construction interception device, comprising an interception plate body (1), characterized in that: The intercepting plate body (1) is provided with a telescopic assembly, the telescopic assembly comprising a sealing strip (21) fixedly connected to the bottom of the intercepting plate body (1), a limiting groove (22) is provided at the top of the intercepting plate body (1), a plurality of positioning grooves (23) are provided at the bottom of the groove wall of the limiting groove (22), two first sets of plates (24) are sleeved on the outer surface of the intercepting plate body (1), the tops of the two first sets of plates (24) on the sides close to each other are fixedly connected to limiting blocks (25), and the limiting blocks (25) slide in the limiting grooves (22). The interior of the limit block (25) is provided with a cavity, a first spring (26) is fixedly connected to the interior of the cavity of the limit block (25), a positioning block (27) is fixedly connected to the bottom of the first spring (26), the positioning block (27) slides inside the cavity of the limit block (25), the bottom of the positioning block (27) abuts against the positioning groove (23), the sides of the two first sets of plates (24) away from each other are both set to rubber material, and a positioning component for fixing the first sets of plates (24) is set on the top of the first sets of plates (24).

2. The intercepting device for water conservancy construction according to claim 1, characterized in that: The two ends of the sealing strip (21) protrude from the two sides of the intercepting plate body (1), and the bottom of the first set of plates (24) is provided with a groove matched with the sealing strip (21).

3. The intercepting device for water conservancy construction according to claim 1, characterized in that: The positioning assembly comprises a top box (31) fixedly connected to the top of the first set plate (24); a positioning rod (32) is slidably connected inside the top box (31); a spring groove (33) is provided inside the positioning rod (32); a second spring (34) is fixedly connected between the spring groove (33) and the inner wall of the top box (31); one end of the positioning rod (32) located outside the top box (31) is fixedly connected to a sleeve (35); and a fixing nail (36) is inserted into the sleeve (35).

4. The intercepting device for water conservancy construction according to claim 3, characterized in that: A sliding block is fixedly connected to the outer side of the positioning rod (32), and a sliding groove for the sliding block to slide is provided on the inner side of the top box (31).

5. The intercepting device for water conservancy construction according to claim 1, characterized in that: An early warning component is provided on the first set of plates (24), and the early warning component comprises two side plates (41) respectively fixedly connected to the two first set of plates (24); two lifting grooves (42) are provided on the side plates (41); a pressing switch (43) is fixedly connected to the groove top of the lifting groove (42); a lifting block (44) is slidably connected inside each lifting groove (42); a fixing plate (47) is fixedly connected between the two lifting blocks (44) on the same side plate (41); an air bag (48) is fixedly connected to the side of the fixing plate (47) away from the lifting block (44); a telescopic plate (46) is fixedly connected to the side of the two fixing plates (47) close to each other; and an alarm (49) is fixedly connected to the top of the telescopic plate (46).

6. The intercepting device for water conservancy construction according to claim 1, characterized in that: A support assembly is provided on a side of the first set of plates (24) away from the airbag (48), the support assembly comprising a fixing seat (51) fixedly connected to the first set of plates (24), a support tube (52) being rotatably connected inside the fixing seat (51), the support tube (52) being provided with a strip groove (53), a plurality of equally spaced limiting rings (54) being fixedly connected to the outer surface of the support tube (52), a support rod (55) being slidably connected inside the support tube (52), a boss (56) being fixedly connected to the top of the support rod (55), and a rotating ring (57) being sleeved on the outer side of the support tube (52). The inner ring of the rotating ring (57) is fixedly connected with a clamping block (58), the bottom of the support rod (55) is rotatably connected with a positioning claw (59), and the positioning claw (59) is rotatably connected with two adjusting claws (510), the boss (56) slides inside the strip groove (53), and the boss (56) passes through the strip groove (53) and extends to the outside of the support tube (52), and the boss (56) is located at the end of the outer side of the support tube (52) and is provided with a rotating groove, and the inner ring surface of the rotating ring (57) is fixedly connected with a convex ring, and the rotating ring (57) is rotatably connected to the rotating groove of the boss (56) through the convex ring.

7. The intercepting device for water conservancy construction according to claim 6, characterized in that: The thickness of the clamping block (58) is adapted to the gap between two adjacent limiting rings (54) in the same vertical direction, and the bottoms of the adjusting claw (510) and the positioning claw (59) are both fixedly connected with ground nails.

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