A building seepage detection device for water conservancy projects

Abstract

The invention discloses a seepage detection device for buildings used in water conservancy projects, comprising two groups of bases and a group of side extension plates respectively arranged thereon, a blocking structure for blocking ditches is arranged on the base, the blocking structure comprises a middle plate fixedly connected to the base, two groups of special-shaped seats which move synchronously towards or away from each other in a horizontal direction are arranged on the middle plate, side plates for supporting the sides of the ditch are arranged on the two groups of special-shaped seats, a shaping component for driving the side plates to adapt to the shape of the sides of the ditch is arranged on the base, an air replenishing component for replenishing air bags and inflating the face sealing air bags when the side plates collide with the ditch is arranged on the base, the invention can disturb the water flow in the blocking area and simulate the flow state of the water source by arranging a live water component, so as to be closer to the water seepage situation under actual use conditions, and further truly reflect the influence of the water flow of the ditch on its water seepage performance during actual use, and provide more accurate and comprehensive detection results.

Description

Technical Field

[0001] The invention relates to the technical field of seepage detection devices, in particular to a building seepage detection device for water conservancy projects. Background Art

[0002] In water conservancy projects, the stability and safety of buildings are crucial to the operation of the entire project. Water conservancy buildings, such as dams, dikes, channels and reservoirs, are usually subject to huge water pressure, which may cause seepage problems. Seepage refers to the slow infiltration of water through building structures or foundations. If it is not detected and treated in time, it may cause damage to the building structure. In severe cases, it may even cause collapse or waste of water resources. In order to ensure the safety and long-term stability of water conservancy project buildings, seepage detection is one of the routine tasks that must be carried out.

[0003] Chinese patent (publication number: CN116593372A), this scheme specifically includes a seepage liquid sealing chamber in a sealing base and a vacuum adsorption sealing chamber surrounding the outside of the seepage liquid sealing chamber, the seepage liquid sealing chamber and the vacuum adsorption sealing chamber are both annular structures with openings on the same side, and the opening end faces of the two annular structures are flush; the vacuum adsorption sealing chamber is coaxially arranged around the outside of the seepage liquid sealing chamber, so that only when the vacuum adsorption sealing chamber has a sufficient vacuum degree can it represent that the vacuum adsorption sealing chamber is not connected with the outside and the seepage liquid sealing chamber; further, the vacuum adsorption sealing chamber is connected with the seepage liquid sealing chamber through a first vacuum pumping pipe, so that the air inside the seepage liquid sealing chamber is sucked into the vacuum adsorption sealing chamber, avoiding the phenomenon that the water cannot fill the seepage liquid sealing chamber due to the presence of air in the seepage liquid sealing chamber.

[0004] When the water conservancy engineering building seepage detection device in the above patent is used for ditch detection, it is usually necessary to determine the water seepage performance in the blocked area by blocking the ditch. However, the current device often has the problem of difficulty in blocking ditches of different sizes and different cross-sectional shapes (such as U-shaped or trapezoidal). In addition, when the current detection method performs water seepage performance detection on the completed ditch, the water source in the blocked area is usually in a static state, and it is difficult to effectively simulate the water seepage behavior of the ditch under the flow of water during actual use. Therefore, these limitations lead to a large gap between the detection results and the actual working conditions, and it is difficult to accurately evaluate the seepage performance of the ditch. Furthermore, a water conservancy engineering building seepage detection device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a building seepage detection device for water conservancy projects, which has the advantages of adaptively blocking ditches of different sizes and cross-sectional shapes and being able to simulate the flow state of water sources, thereby solving the problem of difficulty in effectively simulating the seepage behavior of ditches under water flow during actual use.

[0006] To achieve the above object, the present invention provides the following technical solution: a seepage detection device for a building used in a water conservancy project, comprising two groups of bases and a group of side extension plates respectively arranged thereon, wherein the bases are provided with a sealing structure for sealing the ditch;

[0007] The interception and sealing structure comprises a middle plate fixedly connected to the base, the middle plate is provided with two groups of special-shaped seats which move synchronously towards or away from each other in the horizontal direction, the two groups of special-shaped seats are provided with side plates for supporting the sides of the ditch, and the base is provided with a shaping component which drives the side plates to adapt to the shape of the sides of the ditch;

[0008] The interception and sealing structure also includes a supplementary air bag fixedly connected to the side plate and the base and used to fill the gap between the side plate and the ditch, a surface sealing air bag fixedly connected to the base for blocking the water flow, and an air replenishing component for inflating the supplementary air bag and the surface sealing air bag when the side plate collides with the ditch;

[0009] The side extension plate includes an integrally formed support plate, on which a live water component is provided for disturbing the intercepted water flow to simulate the flow state of a water source.

[0010] Preferably, the support plate is provided with a co-positioned shaft driven by a motor and freely rotating in the vertical direction, the base is fixedly connected with a middle plate, and a bidirectional screw rod connected to the co-positioned shaft is fixedly rotated on the middle plate;

[0011] The bidirectional screw rod is provided with two groups of special-shaped seats that move synchronously toward or away from each other, and the two groups of special-shaped seats are provided with internal threaded barrels that rotate on a fixed axis, and the internal threaded barrels are threadedly matched with the bidirectional screw rod, and a receiving groove is provided on the special-shaped seat, and a blocking block is slidably connected in the receiving groove, and a blocking groove is provided in the internal threaded barrel corresponding to the position of the blocking block, and a reset spring is provided in the receiving groove, and the two ends of the reset spring are respectively fixedly connected to the blocking block and the special-shaped seat;

[0012] The special-shaped seat is provided with a distance component for limiting its own horizontal position.

[0013] Preferably, the distance component comprises a fork-shaped rod arranged on a special-shaped seat, and the special-shaped seat is provided with a rectangular groove for the fork-shaped rod to slide in the horizontal direction, the positioning block is fixedly connected with a positioning pin toward one side of the fork-shaped rod, and the fork-shaped rod is provided with an oblique groove for the positioning pin to slide and connect;

[0014] A side block is arranged on one end of the fork-shaped rod away from the special-shaped seat for fixed-axis rotation, and a side plate is provided with a clearance groove for the side block to slide in a vertical direction.

[0015] Preferably, the shaping assembly comprises an extension rod arranged on a base, and a groove body is provided on the base for the extension rod to slide horizontally, a retraction block is provided at one end of the extension rod away from the base, and the bottom end of the side plate is fixedly rotated on the extension rod;

[0016] The extension rod is provided with a second groove body for the retraction block to slide horizontally, a directional spring is arranged in the second groove body, and two ends of the directional spring are respectively fixedly connected to the retraction block and the extension rod;

[0017] A blocking block is arranged on the side of the side plate away from the base, a groove body three for vertical sliding of the blocking block is provided on the extension rod, a transverse pin is fixedly connected to the blocking block, and an oblique positioning groove for sliding connection of the transverse pin is provided on the retracting block.

[0018] Preferably, the air supplement component comprises an air supplement cylinder fixedly connected to the special-shaped seat, and a positioning rod is fixedly rotated on the special-shaped seat, and a sector gear is fixedly connected to the positioning rod;

[0019] The sector gear is meshedly connected with a tooth column, and one end of the tooth column facing the air supply cylinder is fixedly connected with a piston plate, and the outer peripheral surface of the piston plate is in sliding contact with the inner wall of the air supply cylinder;

[0020] The air replenishing cylinder is fixedly provided with a group of air inlets and two groups of air outlets, the two groups of air outlets include large-diameter air outlets and micro-diameter air outlets, and the large-diameter air outlets are gas-connected with the replenishing air bag and the face-sealing air bag.

[0021] Preferably, a hollow worm is coaxially fixed on the internal threaded cylinder, the hollow worm is meshingly connected with a worm wheel, and the worm wheel rotates on a fixed axis on the special-shaped seat, a positioning pin is fixedly connected to one end of the worm wheel facing the positioning rod, and a positioning groove is provided on the positioning rod for the sliding connection of the positioning pin.

[0022] Preferably, the ends of the two groups of side extension plates away from the base are rotatably connected through a hinge seat, and a group of side shaft disks are respectively rotatably arranged on the integrally formed support plates of the two groups of side extension plates, and the side shaft disks are respectively coaxially fixed with the coaxial axes;

[0023] A plurality of transmission columns arranged in a circular array are fixedly connected to the two groups of side shaft disks, and the transmission columns arranged on the two groups of side shaft disks are staggered and in sliding contact with each other.

[0024] Preferably, the live water assembly comprises a V-shaped swing arm rotating on a fixed axis on a side extension plate, a spoiler is coaxially fixed on the V-shaped swing arm, a rectangular rod is provided on the support plate, and a groove body for horizontal sliding of the rectangular rod is provided on the support plate, a limiting pin is fixedly connected to one side of the rectangular rod facing the V-shaped swing arm, and a limiting groove for sliding connection of the limiting pin is provided on the V-shaped swing arm;

[0025] Preferably, the live water assembly further comprises a transverse rod which is transmission-connected to the co-axial shaft, the middle part of the transverse rod is fixedly rotated on the side extension plate, two groups of push pins are fixedly connected to the transverse rod, and a T-shaped blocking rod is fixedly connected to the rectangular rod corresponding to the position of the push pin;

[0026] The two groups of push pins are in sliding contact with both the V-shaped swing rod and the T-shaped blocking rod.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention can effectively block ditches of different sizes and cross-sectional shapes (such as U-shaped and trapezoidal) by setting a blocking structure, and has an adaptive function. Through the vertical or deflection movement of the side plate, the side plate can fit closely to the side wall of the ditch, thereby improving the applicability of the device, and can be applied to ditches of various shapes and sizes, thereby improving the flexibility and accuracy of detection.

[0029] 2. The present invention can disturb the water flow in the blocked area and simulate the flow state of the water source by setting a live water component, thereby being closer to the water seepage situation under actual use conditions. Compared with the traditional static water testing method, this dynamic water flow testing method more truly reflects the impact of the water flow on the water seepage performance of the ditch during actual use, and provides more accurate and comprehensive test results.

[0030] 3. The present invention can adjust the relative positions of the two groups of bases according to the shape of the bend of the ditch, and simulate the impact of high-speed water flow on the outside of the bend through the live water component. This design enables the device to more accurately detect the water seepage performance of the bend area, making up for the shortcomings of traditional equipment in insufficient detection accuracy under complex terrain. It is particularly suitable for water seepage detection in bends where the water flow velocity and pressure change greatly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the components where the base of the present invention is located;

[0033] Figure 3 For the present invention Figure 2 Enlarged view of point B in the middle;

[0034] Figure 4 For the present invention Figure 2 Enlarged view of point C in the middle;

[0035] Figure 5 For the present invention Figure 2 Enlarged view of point D in the middle;

[0036] Figure 6 This is a schematic diagram of the component where the special-shaped seat of the present invention is located;

[0037] Figure 7 This is a schematic diagram of the components where the positioning block of the present invention is located;

[0038] Figure 8 For the present invention Figure 6 Enlarged view of point A in the middle;

[0039] Fig. 9 This is a schematic diagram of the components where the retracting block of the present invention is located;

[0040] Fig.10 This is a schematic diagram of the components where the V-shaped swing arm of the present invention is located;

[0041] Fig.11 It is a schematic diagram of the connection method of two sets of side extension plates of the present invention;

[0042] Fig.12 The present invention is a schematic diagram of the seepage detection device for buildings used in water conservancy projects in use at a bend in a ditch.

[0043] In the figure: 1, base; 2, side extension plate; 201, support plate; 3, middle plate; 4, bidirectional screw; 5, internal threaded tube; 6, positioning groove; 7, positioning block; 8, receiving groove; 9, reset spring; 10, positioning pin; 11, fork-shaped rod; 12, special-shaped seat; 13, hollow worm; 14, worm wheel; 15, swing pin; 16, swing rod; 17, swing groove; 18, sector gear; 19, tooth column; 20, piston plate; 21, air supply cylinder; 211, large-diameter air outlet; 212, micro-diameter air outlet ; 213, air inlet; 22, supplementary air bag; 23, face seal air bag; 24, edge block; 25, side plate; 26, clearance groove; 27, extension rod; 28, retraction block; 29, directional spring; 30, block; 31, transverse pin; 32, oblique positioning groove; 33, rectangular rod; 34, transverse rod; 35, push pin; 36, V-shaped rocker arm; 37, spoiler; 38, T-shaped block rod; 39, limit pin; 40, limit groove; 41, side shaft plate; 42, transmission column; 43, co-axial shaft. DETAILED DESCRIPTION

[0044] 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.

[0045] See also Figures 1 to 12 The present invention provides a technical solution: a seepage detection device for a building used in a water conservancy project, comprising two groups of bases 1 and a group of side extension plates 2 respectively arranged thereon, wherein the base 1 is provided with a sealing structure for sealing a ditch;

[0046] The interception and sealing structure comprises a middle plate 3 fixedly connected to a base 1, on which two groups of special-shaped seats 12 are arranged which move synchronously towards or away from each other in a horizontal direction, and on which two groups of special-shaped seats 12 are arranged side plates 25 for supporting the sides of the ditch, and on which a shaping component for driving the side plates 25 to adapt to the shape of the sides of the ditch is arranged on the base 1;

[0047] The interception and sealing structure also includes a supplementary air bag 22 fixedly connected to the side plate 25 and the base 1 and used to fill the gap between the two and the ditch. The base 1 is fixedly connected to a surface sealing air bag 23 for blocking the water flow. The base 1 is provided with an air replenishing component for inflating the supplementary air bag 22 and the surface sealing air bag 23 when the side plate 25 collides with the ditch.

[0048] The side extension plate 2 includes an integrally formed support plate 201 , on which a live water component is provided for disturbing the intercepted water flow to simulate the flow state of a water source.

[0049] like Figure 1 and Figure 2 As shown, when testing the water seepage performance of the ditch, two groups of bases 1 are placed in the ditch according to the selected test point positions, and the two groups of special-shaped seats 12 arranged on the middle plate 3 that move synchronously toward or away from each other drive the side plates 25 arranged at the ends thereof to move until the two groups of side plates 25 are against the sides of the ditch.

[0050] At the same time, if the cross-sectional shape of the ditch is U-shaped, the side plate 25 is in a vertical state in the initial state, wherein, when the side plate 25 contacts the side of the ditch, it stops moving; if the cross-sectional shape of the ditch is trapezoidal, the trapezoidal structure is wide at the top and narrow at the bottom. At this time, after the side plate 25 partially contacts the side of the ditch, it can deflect in the vertical direction until the side plate 25 can be consistent with the slope of the side of the ditch.

[0051] Among them, the supplementary air bags 22 on the side plates 25 and the base 1 are used to make up the gap between the two and the ditch, and the base 1 is fixedly connected with a face sealing air bag 23 for blocking the water flow. When the cross-sectional shape formed between the base 1 and the two groups of side plates 25 arranged on both sides is consistent with the cross-sectional shape of the ditch, under the drive of the air supplement component, air can be inflated into both the face sealing air bag 23 and the supplementary air bag 22 to fill the gap between the base 1 and the side plates 25 and the inner wall of the ditch. At the same time, by inflating air into the face sealing air bag 23, the face sealing air bag 23 can be tightly attached to the side plates 25 and the base 1, thereby preventing water from flowing out from the cross-sectional shape formed by the side plates 25 and the base 1.

[0052] At the same time, after the ditch section at the measuring point is blocked, a water source of a set height is added to the blocked area. The water loss per unit time is monitored to calculate the water seepage performance at the test point. The live water component is used to simulate the state of water flow and test the water seepage under flowing water conditions. This test method is closer to the actual use scenario of the ditch and provides more comprehensive test results.

[0053] It should be noted that, especially when testing at the bends of the ditch, due to the change in the direction of the water flow, the water flow will generate centrifugal force and eddy currents, resulting in uneven water flow speed. On the outside of the bend, the water flow speed is usually faster and the water pressure is greater, while on the inside it is relatively slower. This increase in local pressure, especially on the outside of the bend, will increase the impact of water on the ditch wall, thereby increasing the possibility of water seepage. Therefore, when the bends of the ditch are tested for water seepage, the relative positions of the two groups of bases 1 can be changed to make them present different angles to adapt to test points with different curvatures and to meet the purpose of blocking different test points. At the same time, the live water component can be used to simulate the impact of water flow on the bends of the ditch to improve the detection accuracy of the water seepage performance at the bends of the ditch.

[0054] In one of the preferred embodiments, the support plate 201 is provided with a co-axial shaft 43 driven by a motor and freely rotating in the vertical direction, the base 1 is fixedly connected with a middle plate 3, and the middle plate 3 is provided with a bidirectional screw rod 4 which is transmission-connected with the co-axial shaft 43 and rotates on a fixed axis;

[0055] The bidirectional screw rod 4 is provided with two groups of special-shaped seats 12 that move synchronously toward or away from each other, and the two groups of special-shaped seats 12 are both provided with internal threaded barrels 5 that rotate on a fixed axis, and the internal threaded barrels 5 and the bidirectional screw rod 4 are threadedly matched, and the special-shaped seats 12 are provided with a receiving groove 8, and a positioning block 7 is slidably connected in the receiving groove 8, and a positioning groove 6 is provided in the internal threaded barrel 5 corresponding to the positioning block 7, and a reset spring 9 is provided in the receiving groove 8, and the two ends of the reset spring 9 are respectively fixedly connected to the positioning block 7 and the special-shaped seat 12;

[0056] The special-shaped seat 12 is provided with a distance component for limiting its own horizontal position.

[0057] like Figure 2 , Figure 6 and Figure 8 As shown, the co-axial shaft 43 is driven by a motor to rotate in the vertical direction, thereby driving the bidirectional screw rod 4 connected thereto to rotate synchronously, wherein the laying directions of the bidirectional screw rod 4 and the co-axial shaft 43 are different. In actual use, the transmission direction of the output shaft can be changed by means of bevel gear meshing or the like, so as to achieve the purpose of synchronous rotation of the co-axial shaft 43 and the bidirectional screw rod 4.

[0058] At the same time, two groups of internal threaded tubes 5 are threadedly connected on the bidirectional screw rod 4. When the blocking block 7 is in the blocking groove 6, the bidirectional screw rod 4 is restricted by the special-shaped seat 12. At this time, when the bidirectional screw rod 4 rotates, the internal threaded tube 5 will not rotate synchronously with it, but move in the horizontal direction with the rotation of the bidirectional screw rod 4, and drive the special-shaped seat 12 thereon to move synchronously horizontally, so as to change the spacing between the two groups of side plates 25, so as to reduce the gap between the side plates 25 and the side walls of the ditch.

[0059] At the same time, when the side plate 25 cannot continue to move horizontally due to the obstruction of the ditch side wall, the locking block 7 disengages from the locking groove 6 under the drive of the distance component. At this time, the internal threaded tube 5 is no longer restricted by the special-shaped seat 12. Therefore, when the subsequent bidirectional screw rod 4 continues to rotate, its internal threaded tube 5 can rotate synchronously with the bidirectional screw rod 4, and the positions of the special-shaped seat 12 and the side plate 25 will not change, thereby adapting to ditches of different cross-sectional sizes and achieving the purpose of adaptively blocking the ditch.

[0060] Further, the distance component includes a fork-shaped rod 11 arranged on a special-shaped seat 12, and the special-shaped seat 12 is provided with a rectangular groove for the fork-shaped rod 11 to slide in the horizontal direction, the positioning block 7 is fixedly connected to a positioning pin 10 on one side of the fork-shaped rod 11, and the fork-shaped rod 11 is provided with an oblique groove for the positioning pin 10 to slide and connect;

[0061] The fork-shaped rod 11 has a side block 24 at one end thereof which is away from the special-shaped seat 12 and is rotatably provided with a side block 24. The side plate 25 is provided with a clearance groove 26 for the side block 24 to slide in a vertical direction.

[0062] like Figure 2 , Figure 6 and Figure 7 As shown, when the special-shaped seat 12 drives the fork-shaped rod 11 and the side plate 25 set at its end to move horizontally toward the inner wall of the ditch, and causes the side plate 25 to collide with the inner wall and cannot continue to move horizontally, as the bidirectional screw 4 continues to rotate, since the locking block 7 is in the locking groove 6, the special-shaped seat 12 will continue to move a certain distance toward the side wall of the ditch, and then relative movement will occur between it and the fork-shaped rod 11.

[0063] At the same time, when the fork rod 11 and the special-shaped seat 12 move relative to each other, the positioning pin 10 is driven to slide on the oblique groove. At the same time, driven by the oblique groove, the horizontal heights of the positioning pin 10 and the positioning block 7 change, causing the positioning block 7 to disengage from the positioning groove 6. At this time, the internal threaded barrel 5 is no longer restricted by the special-shaped seat 12. Therefore, the internal threaded barrel 5 will subsequently rotate synchronously with the bidirectional screw 4.

[0064] Among them, if the cross-sectional shape of the ditch is a trapezoid, the lower position of the side plate 25 first contacts the side surface of the ditch, and then as the special-shaped seat 12 drives the fork-shaped rod 11 to continue to move in the horizontal direction, the side plate 25 can deflect in the vertical direction to make the slope of the side plate 25 match the slope of the side surface of the ditch.

[0065] Based on the embodiment of the distance component, the shaping component includes an extension rod 27 arranged on the base 1, and a groove body 1 is provided on the base 1 for the extension rod 27 to slide horizontally, a retraction block 28 is provided at one end of the extension rod 27 away from the base 1, and the bottom end of the side plate 25 is fixedly rotated on the extension rod 27;

[0066] The extension rod 27 is provided with a second groove for the retraction block 28 to slide horizontally, and a directional spring 29 is arranged in the second groove, and the two ends of the directional spring 29 are respectively fixedly connected to the retraction block 28 and the extension rod 27;

[0067] A blocking block 30 is provided on the side of the side plate 25 away from the base 1, a groove body 3 is provided on the extension rod 27 for the blocking block 30 to slide vertically, a transverse pin 31 is fixedly connected to the blocking block 30, and an oblique positioning groove 32 for the transverse pin 31 to slide and connect is provided on the retracting block 28.

[0068] like Figure 2 and Fig. 9 As shown, when the special-shaped seat 12 drives the fork-shaped rod 11 to move in the horizontal direction, the extension rod 27 can be driven to move horizontally synchronously through the side plate 25. When the special-shaped seat 12 initially moves, due to the setting of the blocking block 30, the side plate 25 can be prevented from deflecting toward one side of the ditch, thereby keeping the side plate 25 in a vertical state.

[0069] At the same time, when the retraction block 28 contacts the side wall of the ditch, it gradually retracts into the second groove body under the restriction of the ditch, and changes the height of the block 30 through the oblique positioning groove 32 opened thereon to drive the block 30 to retract into the third groove body. At this time, the side plate 25 will not be hindered by the block 30. Therefore, when the special-shaped seat 12 drives the fork rod 11 to continue to move in the horizontal direction, the side plate 25 can be deflected and finally adapt to the slope of the side wall of the ditch.

[0070] Among them, when the side plate 25 is deflected, the relative position between the end of the fork rod 11 away from the special-shaped seat 12 and the side plate 25 changes. Therefore, a side block 24 is provided on the side plate 25, so that the air cylinder 21 can rotate on the side block 24 to adapt to the angle change of the side plate 25. At the same time, a clearance groove 26 for the sliding of the side block 24 is opened on the side plate 25 to adapt to the relative position change between the fork rod 11 and the side plate 25, thereby avoiding the existence of the fork rod 11 from interfering with the deflection process of the side plate 25.

[0071] On the basis of the embodiment of the shaping component, the air supplement component includes an air supplement cylinder 21 fixedly connected to the special-shaped seat 12, and a positioning rod 16 is fixedly rotated on the special-shaped seat 12, and a sector gear 18 is fixedly connected to the positioning rod 16;

[0072] The sector gear 18 is meshedly connected with a tooth column 19, and one end of the tooth column 19 facing the air supply cylinder 21 is fixedly connected with a piston plate 20, and the outer peripheral surface of the piston plate 20 is in sliding contact with the inner wall of the air supply cylinder 21;

[0073] The air replenishing cylinder 21 is fixedly provided with a group of air inlets 213 and two groups of air outlets, the two groups of air outlets include a large-diameter air outlet 211 and a small-diameter air outlet 212 , and the large-diameter air outlet 211 is in gas communication with the replenishing air bag 22 and the face-sealing air bag 23 .

[0074] A hollow worm 13 is coaxially fixed on the internal threaded tube 5, and the hollow worm 13 is meshingly connected with a worm wheel 14, and the worm wheel 14 rotates on a fixed axis on the special-shaped seat 12, and a positioning pin 15 is fixedly connected to one end of the worm wheel 14 facing the positioning rod 16, and the positioning rod 16 is provided with a positioning groove 17 for the positioning pin 15 to be slidably connected.

[0075] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, when the side plate 25 is against the side wall of the ditch, the locking block 7 disengages from the locking groove 6. At this time, the internal threaded barrel 5 can rotate synchronously with the bidirectional screw 4, and the internal threaded barrel 5 drives the hollow worm 13 coaxially arranged thereon to rotate synchronously, and then drives the worm wheel 14 to rotate in the horizontal direction through the hollow worm 13.

[0076] At the same time, the worm gear 14 changes the position of the positioning pin 15 fixed thereon during rotation, and the positioning pin 15 is slidably connected to the positioning rod 16 through the positioning groove 17. Therefore, the position change of the positioning pin 15 can drive the positioning rod 16 to swing back and forth at a fixed point, and drive the tooth column 19 meshing with the fan gear 18 through the fan gear 18 arranged at its end to reciprocate in the horizontal direction.

[0077] Among them, the piston plate 20 fixedly arranged at the end of the tooth column 19 is arranged on the air filling cylinder 21, and the gas suction process is completed by driving the piston plate 20 to reciprocate in the air filling cylinder 21. It should be noted that the air inlet 213 and the large-diameter air outlet 211 are provided with a one-way valve with the valve port opposite to the valve port. Therefore, the gas can enter the piston plate 20 through the micro-diameter air outlet 212 and the air inlet 213, and can be discharged through the large-diameter air outlet 211 and the micro-diameter air outlet 212. When the gas in the replenishing air bag 22 and the face-sealing air bag 23 is in communication with each other, the large-diameter air outlet 211 can continuously transport gas to the replenishing air bag 22 and the face-sealing air bag 23 through the reciprocating motion of the piston plate 20. Moreover, when the replenishing air bag 22 and the face-sealing air bag 23 are in a full state, the gas encounters too much resistance when flowing out of the replenishing air cylinder 21 from the position of the large-diameter air outlet 211. Therefore, the micro-diameter air outlet 212 can still satisfy the gas discharge process in the replenishing air cylinder 21.

[0078] It should be noted that, in actual use, both the supplementary airbag 22 and the face-sealing airbag 23 are fixedly arranged between the side plate 25, the extension rod 27 and the base 1, wherein glue can be used for intermittent fixing to ensure that when the supplementary airbag 22 is inflated, the gap between the device and the ditch can be filled, and that when the face-sealing airbag 23 is full, the cross-section formed by the side plate 25, the extension rod 27 and the base 1 can be blocked, and the intermittent fixing method can adapt to side plates 25 with different spacings. In actual use, the bonding position of the face-sealing airbag 23 with the base 1 and the extension rod 27 can be changed to ensure that water will not flow out through the face-sealing airbag 23.

[0079] On the basis of the embodiment of the air replenishment assembly, the two sets of side extension plates 2 are rotatably connected at one end away from the base 1 through a hinge seat, and a set of side shaft discs 41 are respectively rotatably provided on the integrally formed support plates 201 of the two sets of side extension plates 2, and the side shaft discs 41 are respectively coaxially fixed with the coaxial shafts 43;

[0080] A plurality of transmission posts 42 arranged in a circular array are fixedly connected to the two sets of side shaft discs 41 , and the transmission posts 42 arranged on the two sets of side shaft discs 41 are staggered and in sliding contact with each other.

[0081] like Figure 1 , Figure 2 and Fig.11 As shown, a group of coaxial shafts 43 are driven to rotate in the vertical direction by a motor, thereby driving the side shaft disk 41 coaxially arranged at its end to rotate synchronously, and another group of coaxial shafts 43 are driven to rotate through the transmission column 42 arranged on the side shaft disk 41, so as to drive the bidirectional screw rods 4 on the two groups of bases 1 to rotate synchronously, thereby synchronously blocking the two ends of the ditch test point position.

[0082] Furthermore, the live water assembly includes a V-shaped rocker arm 36 that rotates on a fixed axis on the side extension plate 2, a spoiler plate 37 is coaxially fixed on the V-shaped rocker arm 36, a rectangular rod 33 is provided on the support plate 201, and the support plate 201 is provided with a groove body for horizontal sliding of the rectangular rod 33, a side of the rectangular rod 33 facing the V-shaped rocker arm 36 is fixedly connected with a limit pin 39, and the V-shaped rocker arm 36 is provided with a limit groove 40 for the limit pin 39 to be slidably connected.

[0083] The live water assembly also includes a transverse rod 34 that is transmission-connected to the co-positioned shaft 43. The middle part of the transverse rod 34 is fixedly rotated on the side extension plate 2. Two sets of push pins 35 are fixedly connected to the transverse rod 34, and a T-shaped blocking rod 38 is fixedly connected to the rectangular rod 33 at the position corresponding to the push pin 35.

[0084] The two groups of push pins 35 are in sliding contact with both the V-shaped swing rod 36 and the T-shaped blocking rod 38 .

[0085] like Figure 1 , Fig.10 and Fig.12 As shown, when the co-axial shaft 43 rotates, it can drive the transverse rod 34 connected thereto to rotate synchronously, wherein two sets of push pins 35 are fixedly provided on the transverse rod 34. When the push pins 35 collide with the V-shaped rocker bar 36, the V-shaped rocker bar 36 and the spoiler 37 are driven to rotate during the rotation process, and the limit pin 39, the rectangular rod 33 and the T-shaped stop rod 38 are driven to rotate in the horizontal direction through the limit groove 40.

[0086] At the same time, with the continuous rotation of the transverse rod 34, the push pin 35 conflicts with the T-shaped resistance rod 38, and pushes the T-shaped resistance rod 38 under the rotation of the transverse rod 34, and makes the rectangular rod 33 move horizontally to the initial position. At this time, when the horizontal position of the limit pin 39 on the rectangular rod 33 changes, the V-shaped rocker arm 36 can be driven to rotate in the opposite direction to the initial state through the limit groove 40. Therefore, through the continuous rotation process of the transverse rod 34, the spoiler 37 can be driven to swing back and forth in a fan-shaped trajectory in the vertical direction, thereby disturbing the water flow in the detection point area to simulate the seepage of the ditch under flowing water conditions.

[0087] It should be noted that in actual use, when testing the water seepage performance at the bend of the ditch (such as Fig.12As shown in the figure, by changing the angle between the two groups of side extension plates 2, the two groups of bases 1 are respectively located in the two groups of straight segments of the ditch, thereby blocking the positions of the two groups of straight segments, and in actual use, the spoiler 37 can be driven close to the outside of the ditch bend. The reason is that on the outside of the bend, the water flow speed is usually faster and the water pressure is also greater, while on the inside it is relatively slower. This increase in local pressure, especially on the outside of the bend, will increase the impact force of water on the ditch wall, thereby increasing the possibility of water seepage; therefore, by placing the spoiler 37 close to the outside of the ditch bend, the scouring of the water flow to the area when the ditch is in use can be simulated to improve the accuracy of water seepage detection.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seepage detection device for a hydraulic engineering building, comprising two sets of bases (1) and a set of side extension plates (2) respectively arranged thereon, characterized in that: The base (1) is provided with a sealing structure for sealing the ditch; The interception and sealing structure comprises a middle plate (3) fixedly connected to a base (1), the middle plate (3) being provided with two groups of special-shaped seats (12) which move synchronously towards or away from each other in a horizontal direction, the two groups of special-shaped seats (12) being provided with side plates (25) for supporting the side surfaces of the ditch, and the base (1) being provided with a shaping component for driving the side plates (25) to adapt to the shape of the side surfaces of the ditch; The interception and sealing structure further comprises a supplementary air bag (22) fixedly connected to the side plate (25) and the base (1) and used to fill the gap between the side plate (25) and the ditch; a surface sealing air bag (23) fixedly connected to the base (1) and used to block the water flow; and an air replenishing component is provided on the base (1) for inflating the supplementary air bag (22) and the surface sealing air bag (23) when the side plate (25) collides with the ditch; The side extension plate (2) comprises an integrally formed support plate (201), on which a live water component is provided for disturbing the intercepted water flow to simulate the flow state of a water source.

2. A seepage detection device for a hydraulic engineering building according to claim 1, characterized in that: The support plate (201) is provided with a co-ordination shaft (43) driven by a motor and freely rotating in a vertical direction, the base (1) is fixedly connected with a middle plate (3), and the middle plate (3) is provided with a bidirectional screw rod (4) which is fixedly rotatable and transmission-connected with the co-ordination shaft (43); The bidirectional screw rod (4) is provided with two groups of special-shaped seats (12) which move synchronously towards or away from each other, and the two groups of special-shaped seats (12) are provided with internal threaded cylinders (5) which rotate on a fixed axis, and the internal threaded cylinders (5) and the bidirectional screw rod (4) are threadedly matched, and the special-shaped seats (12) are provided with a receiving groove (8) and a positioning block (7) is slidably connected in the receiving groove (8), and the internal threaded cylinder (5) is provided with a positioning groove (6) corresponding to the position of the positioning block (7), and a return spring (9) is provided in the receiving groove (8), and the two ends of the return spring (9) are respectively fixedly connected to the positioning block (7) and the special-shaped seat (12); The special-shaped seat (12) is provided with a distance-fixing component for limiting its own horizontal position.

3. A seepage detection device for a hydraulic engineering building according to claim 2, characterized in that: The distance-fixing assembly comprises a fork-shaped rod (11) arranged on a special-shaped seat (12), and the special-shaped seat (12) is provided with a rectangular groove for the fork-shaped rod (11) to slide in the horizontal direction, the positioning block (7) is fixedly connected to a positioning pin (10) on one side of the fork-shaped rod (11), and the fork-shaped rod (11) is provided with an oblique groove for the positioning pin (10) to slide and connect; The fork-shaped rod (11) has a side block (24) at one end thereof which is away from the special-shaped seat (12) and is rotatably provided with a side block, and a side plate (25) is provided with a clearance groove (26) for the side block (24) to slide in a vertical direction.

4. A seepage detection device for a hydraulic engineering building according to claim 3, characterized in that: The shaping component comprises an extension rod (27) arranged on a base (1), and a groove body is provided on the base (1) for the extension rod (27) to slide horizontally, a retracting block (28) is provided at one end of the extension rod (27) away from the base (1), and the bottom end of the side plate (25) is fixedly rotated on the extension rod (27); The extension rod (27) is provided with a second groove body for the retraction block (28) to slide horizontally, a directional spring (29) is arranged in the second groove body, and two ends of the directional spring (29) are respectively fixedly connected to the retraction block (28) and the extension rod (27); A blocking block (30) is provided on the side of the side plate (25) away from the base (1), a groove body (3) is provided on the extension rod (27) for the blocking block (30) to slide vertically, a transverse pin (31) is fixedly connected to the blocking block (30), and an oblique positioning groove (32) is provided on the retracting block (28) for the transverse pin (31) to be slidably connected.

5. A seepage detection device for a hydraulic engineering building according to claim 4, characterized in that: The air replenishment assembly comprises an air replenishment cylinder (21) fixedly connected to the special-shaped seat (12), and a positioning rod (16) is fixedly rotated on the special-shaped seat (12), and a sector gear (18) is fixedly connected to the positioning rod (16); The sector gear (18) is meshingly connected with a tooth column (19), one end of the tooth column (19) facing the air supply cylinder (21) is fixedly connected with a piston plate (20), and the outer peripheral surface of the piston plate (20) is in sliding contact with the inner wall of the air supply cylinder (21); The air replenishing cylinder (21) is fixedly provided with a group of air inlets (213) and two groups of air outlets, the two groups of air outlets comprising a large-diameter air outlet (211) and a small-diameter air outlet (212), and the large-diameter air outlet (211) is in gas communication with the replenishing air bag (22) and the surface sealing air bag (23).

6. A seepage detection device for a hydraulic engineering building according to claim 5, characterized in that: A hollow worm (13) is coaxially fixed on the internal threaded cylinder (5), the hollow worm (13) is meshingly connected with a worm wheel (14), and the worm wheel (14) is fixedly rotated on the special-shaped seat (12), and one end of the worm wheel (14) facing the positioning rod (16) is fixedly connected with a positioning pin (15), and the positioning rod (16) is provided with a positioning groove (17) for sliding connection with the positioning pin (15).

7. A seepage detection device for a hydraulic engineering building according to claim 6, characterized in that: The ends of the two sets of side extension plates (2) away from the base (1) are rotatably connected via a hinge seat, and a set of side shaft discs (41) are respectively rotatably arranged on the integrally formed support plates (201) of the two sets of side extension plates (2), and the side shaft discs (41) are respectively coaxially fixed with the co-positioned shafts (43); A plurality of groups of transmission posts (42) arranged in a ring array are fixedly connected to both groups of side shaft discs (41), and the transmission posts (42) arranged on the two groups of side shaft discs (41) are staggered and in sliding contact with each other.

8. A seepage detection device for a hydraulic engineering building according to claim 7, characterized in that: The live water assembly comprises a V-shaped swing rod (36) which rotates on a fixed axis on the side extension plate (2), a spoiler plate (37) being coaxially fixed on the V-shaped swing rod (36), a rectangular rod (33) being provided on the support plate (201), and a groove body for horizontal sliding of the rectangular rod (33) being provided on the support plate (201), a limiting pin (39) being fixedly connected to a side of the rectangular rod (33) facing the V-shaped swing rod (36), and a limiting groove (40) for sliding connection of the limiting pin (39) being provided on the V-shaped swing rod (36).

9. A seepage detection device for a hydraulic engineering building according to claim 8, characterized in that: The live water assembly further comprises a transverse rod (34) which is transmission-connected to the co-positioned shaft (43); the middle portion of the transverse rod (34) is fixedly axially rotated on the side extension plate (2); two groups of push pins (35) are fixedly connected to the transverse rod (34); and a T-shaped blocking rod (38) is fixedly connected to the rectangular rod (33) at positions corresponding to the push pins (35); the two groups of push pins (35) are in sliding contact with both the V-shaped swing rod (36) and the T-shaped blocking rod (38).

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