Auxiliary device and method for flatly laying impermeable film of waterproof curtain

Abstract

The invention discloses a waterproof curtain impermeable film flat laying auxiliary device and method. The waterproof curtain impermeable film flat laying auxiliary device comprises a base floor arranged in a groove section, and a plurality of positioning assemblies are arranged on the base floor at equal intervals; the positioning assembly comprises a fixing support arranged on the base floor, a chuck is arranged at the top of the fixing support, a step type connecting frame is rotatably installed on the chuck, and a U-shaped fixing frame is arranged at the bottom end of the step type connecting frame; by arranging the base plate and the positioning assembly, the influence that the base surface is uncontrollable due to bottom mudstone accumulation can be eliminated, a controllable bottom fixing reference is established, and it is guaranteed that the bottom of the impermeable film is in a controllable state and is stably fixed to the bottom of the groove section; the technical problems that due to the fact that the construction period is too long or rainwater washout, soil and gravels are deposited at the bottom of a groove section, the situation of the bottom of the groove section is uncontrollable, film laying equipment cannot guarantee the flatness of a laid anti-seepage film, and the anti-seepage effect of a water cut-off curtain is unstable after backfilling and grouting are solved.

Description

Technical Field

[0001] The invention belongs to the field of mine water interception, and relates to an auxiliary device for laying an anti-seepage membrane, in particular to an auxiliary device and method for leveling and laying a water-blocking curtain anti-seepage membrane. Background Art

[0002] The water-blocking curtain is a curtain-wall-like vertical water interception body constructed to block or reduce the flow of groundwater from the periphery of the main body of the project to the main body of the project. It can be used in mine water hazard prevention and control, in-situ protection of water resources, reservoir dam anti-seepage, municipal foundation pit water stopping, landfill pollutant isolation, seawater intrusion and other fields. When constructing the water-blocking curtain, double-wheel milling, hydraulic troughing machine and other troughing equipment are often used to construct a vertical rectangular trough section downward in the stratum, and then the ground membrane laying machine is used to vertically and concealedly lay the anti-seepage membrane in the trough section filled with mud. After multiple continuously laid anti-seepage membranes in the trough section are laid and connected, the gap between the anti-seepage membrane and the trough section is backfilled with original soil, cement-fly ash slurry, mortar or concrete, etc., which can meet the strict anti-seepage requirements of the water-blocking curtain and greatly improve the anti-seepage effect. However, in the specific construction process, the construction process mentioned above still has the following problems when laying the anti-seepage membrane:

[0003] (1) The target layer of the mine water cut-off curtain treatment is deep, the excavation trench section of the water cut-off curtain is deep and narrow, and the trench section is filled with wall protection mud. Therefore, the working space for laying the anti-seepage membrane is narrow and hidden, so it is difficult to fix the anti-seepage membrane at the bottom of the trench section;

[0004] (2) When the trench is formed, the film laying is delayed due to complex geological conditions or weather and other reasons, resulting in the accumulation of mud, sand and rocks at the bottom of the trench section, making the working conditions at the bottom of the trench section uncontrollable and difficult to clean;

[0005] (3) The trench section is deep and large, and the wall slurry and backfill slurry materials in the trench section generate large buoyancy, causing each section of the anti-seepage membrane to float unevenly. As a result, the flatness of the anti-seepage membrane after laying is difficult to control, and the anti-seepage effect of the water-cutting curtain after backfill grouting is unstable. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an auxiliary device and method for the smooth laying of a water-blocking curtain anti-seepage membrane, so as to solve the technical problem that the existing membrane laying equipment cannot ensure the flatness of the anti-seepage membrane after laying, resulting in unstable water-blocking curtain anti-seepage effect after backfill grouting.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0008] A water-blocking curtain anti-seepage membrane flat laying auxiliary device, comprising a base plate arranged in a groove section, a plurality of positioning components are arranged at equal intervals on the base plate; the positioning component comprises a fixed bracket arranged on the base plate, a chuck is arranged on the top of the fixed bracket, a stepped connecting frame is rotatably mounted on the chuck, a U-shaped fixing frame is arranged at the bottom end of the stepped connecting frame, and a twisted rope cutting assembly is arranged on the top of the stepped connecting frame;

[0009] A plurality of mounting holes are provided on the side wall of the U-shaped fixing frame, and a first conical nail is provided in each of the mounting holes;

[0010] The rope cutting assembly comprises a mounting rod and a trigger plate fixedly arranged on the top of the stepped connecting frame, the mounting rod is provided with a linkage shearing knife, the linkage shearing knife is hinged with a trigger rod, and the end of the trigger rod is against the trigger plate;

[0011] The linkage shearing knife comprises two shearing knives rotatably arranged on the mounting rod, the handle sections of the two shearing knives are rotatably connected to a linkage plate, and the ends of the two linkage plates are hingedly connected to the upper end of the trigger rod; the twisted rope is located in the area formed by the blade sections of the two shearing knives;

[0012] It also includes a push-flattening floating rod movably arranged in the groove section, and an anti-lost block is arranged on the push-flattening floating rod;

[0013] A plurality of counterweights are arranged at equal intervals at the bottom of the anti-seepage membrane.

[0014] The present invention also includes the following technical features:

[0015] A conical connecting ring is arranged at the lower end of the base plate, and the hinge rope positioning block can be rotatably installed in the conical connecting ring.

[0016] The fixing bracket includes a positioning cylinder arranged on the top of the base plate and a fixing rod arranged on the bottom of the base plate, a hinge rope positioning block is arranged on the top of the fixing rod, a twisted rope is fixed on the hinge rope positioning block, and the end of the twisted rope passes through the base plate and the positioning cylinder in sequence and is fixed on the notch of the slot section.

[0017] The stepped connecting frame and the U-shaped fixing frame are connected by bolts.

[0018] A second buffer spring is arranged on the bolt.

[0019] Each linkage plate includes a second linkage rod hinged to the handle section corresponding to the shear knife, a linkage block is rotatably mounted on the second linkage rod, a first linkage rod is rotatably mounted on the linkage block, and the two first linkage rods are hinged to the upper end of the trigger rod.

[0020] The two shearing knives are rotatably mounted on the mounting rod via a pin rod.

[0021] The chuck is cylindrical, and a plurality of first springs are evenly arranged on the inner wall of the chuck. Trapezoidal clamping blocks are arranged at the ends of the first springs. A clamping head is arranged at the bottom of the connecting frame, and the clamping head is located in a polygon formed by the plurality of trapezoidal clamping blocks.

[0022] The push-flattening floating rod is of a hollow structure, and the weight at both ends is greater than the weight in the middle.

[0023] The bottom of the push-flattening floating rod is provided with an arc-shaped windward opening whose opening direction is away from the anti-seepage membrane.

[0024] A plurality of guide grooves are also arranged on the base floor.

[0025] The counterweight comprises a U-shaped connection block fixed to the lower end of the impermeable membrane, a plumb ball is arranged at the bottom of the U-shaped connection block, and a second conical nail is arranged on an outer side wall of the U-shaped connection block close to the impermeable membrane;

[0026] The base plate is clamped in the groove section through a base plate fixing assembly, and the base plate fixing assembly includes an L-shaped vertical fixing block and a horizontal fixing block embedded in the bottom of the base plate, a second compression spring is arranged between the horizontal fixing block and the base plate, an annular groove is provided at the bottom of the L-shaped vertical fixing block, a third compression spring with one end connected to the L-shaped vertical fixing block is arranged in the annular groove, and a guide column fixed to the base plate is arranged in the third compression spring; a plurality of positioning grooves are arranged on the horizontal fixing block, and one end of the L-shaped vertical fixing block is arranged in the positioning groove.

[0027] A method for using a water-blocking curtain anti-seepage membrane flat laying auxiliary device, which specifically comprises the following steps:

[0028] Step 1: After the trench section is excavated, a groove is made at the bottom of the trench section where the water cut-off curtain is laid;

[0029] Step 2, embedding the fixing rod into the embedding groove and fixing it, and installing the base plate on the upper side of the embedding groove;

[0030] Step 3: lay the anti-seepage membrane, install the positioning rod on the upper side of the base floor, adjust the height of the positioning rod to meet the construction elevation, install the counterweight and the rope shearing assembly, and make the end of the rope pass through the positioning rod, the counterweight and the rope shearing assembly in sequence and then fix it in the notch of the slot section;

[0031] Step 4, connecting the lower end of the anti-seepage membrane to the U-shaped fixing frame and the U-shaped connecting block respectively, and adjusting the anti-seepage membrane to make it completely flat;

[0032] Step 5, manually pull the trigger rod to make the upper end of the trigger rod move in an inclined direction, drive the linkage shearing knife to move, and use the linkage shearing knife to shear the twisted rope to cut the twisted rope;

[0033] Step 6, placing the push-flattening float rod at the lower end of the anti-seepage membrane and pouring, when the slurry contacts the bottom of the push-flattening float rod, an upward buoyancy and a thrust component pushing toward the anti-seepage membrane are generated, and the push-flattening float rod pushes the anti-seepage membrane toward the side of the trough section side wall, and as the slurry is injected, the push-flattening float rod continuously floats up, and the anti-seepage membrane is continuously pushed and fixed toward the side wall;

[0034] Step 7, after pouring is completed, remove the push-flat float rod, and the leveling and pouring of the water-blocking curtain anti-seepage membrane is completed.

[0035] Compared with the prior art, the present invention has the following beneficial technical effects:

[0036] (I) The present invention can eliminate the influence of mud and stone accumulation on the bottom that causes uncontrollable base surface by setting up a base plate and a positioning component, establish a controllable bottom fixing reference, and ensure that the bottom of the anti-seepage membrane is in a controllable state and is stably fixed to the bottom of the trough section; it solves the technical problem that due to a long construction period or rain erosion, mud and gravel will be deposited at the bottom of the trough section, causing the bottom of the trough section to be uncontrollable, making it impossible for the membrane laying equipment to ensure the flatness of the anti-seepage membrane after laying, and making the anti-seepage effect of the water-blocking curtain unstable after backfilling and grouting.

[0037] (II) In the present invention, a guiding mechanism is established by using a twisted rope, so that the lowering process of the anti-seepage membrane is always controllable and the overall horizontal flatness can be maintained, thereby improving the construction quality and efficiency; by providing a twisted rope cutting assembly, the shearing knife can be closed toward the middle, and the twisted rope at the edge of the shearing knife can be cut off, so that the twisted rope can be recycled and reused on the surface, thereby avoiding the waste of the twisted rope;

[0038] (III) By setting up a leveling float rod, during the pouring process, the buoyancy of the slurry can make the leveling float rod always act on the surface of the anti-seepage membrane and move upward, so as to level the anti-seepage membrane, effectively ensure the flatness of the anti-seepage membrane, and achieve the purpose of facilitating the construction of the anti-seepage membrane and controlling the flatness of the anti-seepage membrane after laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a diagram showing the use status of the auxiliary device for evenly laying the water-blocking curtain anti-seepage membrane in the present invention;

[0040] Figure 2 It is a structural schematic diagram of an auxiliary device for evenly laying the water-blocking curtain anti-seepage membrane in the present invention;

[0041] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0042] Figure 4 It is a structural schematic diagram of the positioning component in the present invention;

[0043] Figure 5 This is an installation effect diagram of the anti-seepage membrane fixing frame in the present invention;

[0044] Figure 6 This is a diagram showing the connection effect of the twisted rope in the present invention;

[0045] Figure 7 It is a schematic diagram of the structure of the fixing and vertical assembly in the present invention;

[0046] Figure 8 It is a structural schematic diagram of the base floor and the fixing assembly in the present invention;

[0047] Fig. 9 It is a structural schematic diagram of the connecting frame in the present invention;

[0048] Fig.10 For the present invention Figure 3 A partial enlarged view of point B in the middle;

[0049] Fig.11 For the present invention Figure 3 A partial enlarged view of point C in the middle;

[0050] Fig.12 It is a structural schematic diagram of the linkage shearing knife in the present invention;

[0051] Fig.13 For the present invention Figure 3 A partial enlarged view of point D in the middle;

[0052] Fig.14 A cross-sectional view of the push-flat floating rod from a side angle in the present invention;

[0053] Fig.15 It is a schematic diagram of the structure of the base floor in the present invention when viewed from above.

[0054] The meanings of the numbers in the figure are as follows: 1-slot section, 2-positioning assembly, 3-twisted rope, 4-pushing float rod, 5-twisted rope cutting assembly, 6-anti-seepage membrane, 7-base plate, 8-counterweight, 9-base plate fixing assembly, hinged rope positioning block 10, clamp head 11;

[0055] 21-positioning rod, 22-fixing rod, 23-U-shaped fixing frame, 24-fixing hole, 25-chuck, 26-adjusting rod, 27-second buffer spring, 28-connecting frame, 29-first conical nail;

[0056] 251-block, 252-first spring;

[0057] 41-arc-shaped windward opening, 42-anti-lost block;

[0058] 51-installing rod, 52-trigger plate, 53-trigger rod, 54-first linkage rod, 55-linkage block, 56-shear knife, 57-second linkage rod, 58-pin rod;

[0059] 71-guide groove, 72-conical connecting ring;

[0060] 81- plumb bob, 82- U-shaped connecting block;

[0061] 91-L-shaped vertical fixing block, 92-second compression spring, 93-horizontal fixing block, 94-annular groove, 95-third compression spring, 96-positioning groove, 97-guide column.

[0062] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0063] It should be noted that, unless otherwise specified, all components in the present invention are components known in the art.

[0064] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0065] The present invention provides an auxiliary device for leveling and laying a water-blocking curtain anti-seepage membrane, comprising a base plate 7 arranged in a trough section 1, and a plurality of positioning components 2 are arranged on the base plate 7 at equal intervals;

[0066] The positioning assembly 2 comprises a fixed bracket arranged on the base plate 7, a chuck 25 is arranged on the top of the fixed bracket, a stepped connecting frame 28 is rotatably mounted on the chuck, a U-shaped fixed frame 23 is arranged at the bottom end of the stepped connecting frame 28, and a rope cutting assembly is arranged on the top of the stepped connecting frame 28;

[0067] A plurality of mounting holes are provided on the side wall of the U-shaped fixing frame 23, and a first conical nail 29 is provided in the mounting hole;

[0068] The rope cutting assembly 5 includes a mounting rod 51 and a trigger plate 52 fixedly arranged on the top of the stepped connecting frame 28. A linkage shearing knife is arranged on the mounting rod 51. A trigger rod 53 is hinged on the linkage shearing knife. The end of the trigger rod 53 abuts against the trigger plate 52.

[0069] The linkage shearing knife comprises two shearing knives 56 rotatably arranged on the mounting rod 51, the handle sections of the two shearing knives 56 are rotatably connected to a linkage plate, and the ends of the two linkage plates are hinged to the upper end of the trigger rod 53; the twisted rope 3 is located in the area formed by the blade sections of the two shearing knives 56;

[0070] It also includes a push-flattening float rod 4 movably arranged in the slot section 1, and an anti-lost block 42 is arranged on the push-flattening float rod 4;

[0071] A plurality of counterweights 8 are arranged at equal intervals on the bottom of the anti-seepage membrane 6 .

[0072] In the above technical solution, when in use, after the trench section is excavated, the positioning components 2 are fixed at equal distances at the bottom of the trench section 1, and the base plate fixing component 9 is used to fix the base plate 7 at the upper end of the embedded groove at the bottom of the trench section 1, so that all the positioning components 2 are at the same elevation or meet the elevation requirements for laying the anti-seepage membrane 6, and the positioning components 2 are fixed with a twisted rope 3 to avoid the accumulation of mud, sand and rocks at the bottom of the trench section due to construction period or weather reasons, resulting in uncontrollable working conditions at the bottom of the trench section and difficulty in cleaning the bottom of the trench section; then, when laying the anti-seepage membrane 6, Finally, the push-flattening float rod 4 is laid on the front side of the anti-seepage membrane 6. During the process of pouring concrete, the push-flattening float rod 4 is lifted up by the buoyancy of the concrete, and in the contact between the slurry and the lower curved surface of the anti-seepage membrane 6, an upward buoyancy and a component force pushing in the direction of the anti-seepage membrane are generated. Under the push of the component force, the push-flattening float rod 4 pushes the anti-seepage membrane 6 sideways. As the slurry is injected, the push-flattening float rod 4 continuously floats up, and the anti-seepage membrane 6 is continuously pushed and fixed to the side wall, thereby ensuring the flatness of the anti-seepage membrane after laying, and solving the problem that the flatness of the anti-seepage membrane after laying is difficult to control.

[0073] When in use, the fixed bracket is connected to the base plate 7 to form an integral adjustable support structure at the bottom of the trough section 1 to support the upper structure; the chuck 25 is fixedly set on the upper end of the fixed bracket so that the connecting frame 28 can be rotatably installed, so that its fixing direction can be adjusted to facilitate use under various construction conditions; through the movable connection between the U-shaped fixing frame 23 and the connecting frame 28, a buffer force can be provided during use to ensure the stretching and flattening effect on the anti-seepage membrane 6.

[0074] When the rope 3 needs to be cut, the trigger rod 53 is manually pulled to make the upper end of the trigger rod 53 move in an inclined direction, thereby synchronously driving the linkage shearing knife to move, and the rope 3 is cut by the linkage shearing knife.

[0075] The installation holes are distributed according to specific conditions, with the aim of ensuring stable and convenient fixing, as well as ensuring the fixing effect of the lower end and the U-shaped fixing frame 23 and maintaining a certain length of vertical state at the bottom end of the curtain.

[0076] The first conical nail 29 is used in the grouting process after the curtain reaches the bottom. As the slurry pushes the anti-seepage membrane laterally, the bottom of the anti-seepage membrane slides along the adjustment rod toward the rock layer to strengthen and fix it; the mounting holes can be connected and fixed with rivets, bolts, etc.

[0077] The present invention also includes the following technical features:

[0078] A conical connecting ring 72 is provided at the lower end of the base plate 7, and a hinge rope positioning block 10 can be rotatably installed in the conical connecting ring 72.

[0079] The fixing bracket includes a positioning cylinder arranged on the top of the base plate 7 and a fixing rod 22 arranged on the bottom of the base plate 7. A hinge rope positioning block 10 is arranged on the top of the fixing rod 22. A twisted rope 3 is fixed on the hinge rope positioning block 10. The end of the twisted rope 3 passes through the base plate 7 and the positioning cylinder in sequence and is fixed on the notch of the slot section 1.

[0080] Preferably, the height of the fixing rod 22 is about 10 cm.

[0081] In the above technical scheme, after the trench section 1 and the groove at the bottom of the trench section 1 are excavated, the fixing rod 22 is first embedded in the groove and fixed, and the base plate 7 is installed on the upper side of the groove, so that multiple fixing rods 22 form a stable fixed foundation, and at the same time, the elevation of the base plate 7 meets the construction requirements, so as to ensure that the laying of the anti-seepage membrane 6 is not affected when mud, sand and rocks accumulate at the bottom of the trench section due to construction period or weather reasons, resulting in uncontrollable working conditions at the bottom of the trench section and difficulty in cleaning the bottom of the trench section. Then, after the anti-seepage membrane 6 is laid, the positioning rod 21 is installed above the base plate 7 on the upper side of the fixing rod 22 at the corresponding position by using the twisted rope 3, and the elevation is controlled according to the requirements to fix the anti-seepage membrane 6.

[0082] By setting up the base plate 7 and the positioning component 2, the uncontrollable influence of the base surface caused by the accumulation of mud and rocks at the bottom can be eliminated, a controllable bottom fixing reference can be established, and the bottom of the anti-seepage membrane can be ensured to be in a controllable state and stably fixed to the bottom of the trough section; the technical problem that due to a long construction period or rain erosion, mud and gravel will be deposited at the bottom of the trough section, resulting in uncontrollable conditions at the bottom of the trough section, making it impossible for the membrane laying equipment to ensure the flatness of the anti-seepage membrane after laying, resulting in unstable anti-seepage effect of the water-cutting curtain after backfilling and grouting is solved.

[0083] By establishing a guide mechanism through the twisted rope 3, the lowering process of the anti-seepage membrane can be always controlled, and the overall horizontal flatness can be maintained, thereby improving the construction quality and efficiency; by setting a twisted rope cutting component, the shearing knife can be closed to the middle, and the twisted rope at the edge of the shearing knife can be cut off, so that the twisted rope can be recycled and reused on the surface, thereby avoiding the waste of the twisted rope;

[0084] By setting the leveling float rod 4, during the pouring process, the buoyancy of the slurry can make the leveling float rod always act on the surface of the anti-seepage membrane and move upward, so as to level the anti-seepage membrane, effectively ensure the flatness of the anti-seepage membrane, and achieve the purpose of facilitating the construction of the anti-seepage membrane and controlling the flatness of the anti-seepage membrane after laying.

[0085] The stepped connecting frame 28 is connected to the U-shaped fixing frame 23 by bolts 26 .

[0086] A second buffer spring 27 is provided on the bolt 26 .

[0087] When in use, the adjustment rod 26 is rotated according to the size of the designed vibration to adjust the buffer stroke of the second buffer spring 27. When the anti-seepage membrane 6 vibrates during the casting process or use, the buffering effect of the second buffer spring 27 can be used to protect the anti-seepage membrane 6 to avoid damage to the anti-seepage membrane 6 due to vibration or rigid pulling force, while ensuring the flattening effect of the anti-seepage membrane 6.

[0088] Each linkage plate includes a second linkage rod 57 hinged to the handle section of the corresponding shear knife 56, and a linkage block 55 is rotatably mounted on the second linkage rod 57. A first linkage rod 54 is rotatably mounted on the linkage block 55, and the two first linkage rods 54 are hinged to the upper end of the trigger rod 53.

[0089] In the above technical solution, when the trigger rod 53 is adjusted to move in the tilting direction, the rear ends of the two first linkage rods 54 are driven to move backward under the action of the trigger rod 53, and then the two second linkage rods 57 are driven to move backward through the linkage block 55. In the process of the second linkage rods 57 moving backward, the shear knife 56 is driven to rotate around the pin rod 58, and the blade surface of the shear knife 56 is used to cut the twisted rope 3 so that the twisted rope 3 can be recovered when in use.

[0090] The two shearing knives 56 are rotatably mounted on the mounting rod 51 via a pin rod 58 .

[0091] The chuck 25 is cylindrical, and a plurality of first springs 252 are evenly arranged on the inner wall of the chuck 25. Trapezoidal chucks 251 are arranged at the ends of the first springs 252. The polygonal body formed by the trapezoidal chucks 251 is installed therein. A chuck head 11 is arranged at the bottom of the connecting frame, and the chuck head 11 is located in the polygonal body formed by the plurality of trapezoidal chucks 251.

[0092] In the above technical solution, the chuck 25 is fixedly set on the upper end of the fixed bracket so that the connecting frame 28 can be rotatably installed, making its fixing direction adjustable for use under various construction conditions; through the movable connection between the U-shaped fixing frame 23 and the connecting frame 28, a buffer force can be provided during use to ensure the stretching and flattening effect on the anti-seepage membrane 6.

[0093] When in use, the clamping head 281 is fixed by a plurality of clamping blocks 251 , so that the connecting frame 28 can be rotatably mounted on the upper end of the chuck 25 , so as to adjust the direction of the connecting frame 28 according to different working conditions.

[0094] The push-float rod 4 is hollow in structure, and the weight at both ends is greater than the weight in the middle.

[0095] In the above technology, when in use, through the above structural design, the weight of the two ends of the push-flattening float rod 4 is sufficient to ensure that it will not flip over under the action of buoyancy, and the internal hollowness can make the push-flattening float rod 4 float in the slurry, and when the slurry contacts the lower curved groove 41, an upward buoyancy and a thrust component pushing in the direction of the anti-seepage membrane 6 will be generated. Under the push of the thrust component, the push-flattening float rod 4 pushes the anti-seepage membrane 6 toward the side wall of the groove section. As the slurry is injected, the push-flattening float rod 4 continuously floats up, and the anti-seepage membrane 6 is continuously pushed flat and fixed to the side wall; to prevent accidents, an anti-loss block 42 is set on the floating block, with a hole on the top, and a steel wire rope is connected. When the floating block is stuck and does not float with the slurry, the floating block is manually pulled up.

[0096] The bottom of the push-flat floating rod 4 is provided with an arc-shaped windward opening 41 whose opening direction is away from the anti-seepage membrane 6 .

[0097] In the above technical solution, the arc-shaped windward opening 41 is used to control the direction of the component of buoyancy, so that the flattening float rod 4 can float upward while having a floating component to push the flattening float rod 4 toward the side of the anti-seepage membrane 6, thereby flattening the curtain.

[0098] A plurality of guide grooves 71 are also provided on the base plate 7 .

[0099] In the above technical solution, the guide groove 71 is connected to the embedded groove at the bottom of the trough section 1. It is used to guide the impurities in the treatment or later construction process of the trough section to enter the embedded groove at the bottom of the trough section 1, and at the same time facilitate the diversion of concrete during pouring, so that the concrete can be poured into the embedded groove.

[0100] The counterweight 8 includes a U-shaped connecting block 82 fixed to the lower end of the impermeable membrane 6 , a plumb ball 83 is provided at the bottom of the U-shaped connecting block 82 , and a second conical nail 84 is provided on an outer side wall of the U-shaped connecting block 82 close to the impermeable membrane 6 .

[0101] In the above technical solution, when in use, the U-shaped connecting block 82 is connected to the anti-seepage membrane 6, and the gravity of the plumb ball 83 is used to stretch the anti-seepage membrane 6 so that it can remain flat on the side wall of the groove section. At the same time, the U-shaped connecting block 82 is fixed by the second conical nail 84 to play an anti-swaying role, thereby ensuring the verticality of the anti-seepage membrane 6 after laying.

[0102] The base plate 7 is clamped in the groove section 1 through the base plate fixing component 9. The base plate fixing component 9 includes an L-shaped vertical fixing block 91 and a horizontal fixing block 93 embedded in the bottom of the base plate 7. A second compression spring 92 is arranged between the horizontal fixing block 93 and the base plate 7. An annular groove 94 is provided at the bottom of the L-shaped vertical fixing block 91. A third compression spring 95 with one end connected to the L-shaped vertical fixing block 91 is arranged in the annular groove 94. A guide column 97 fixed to the base plate 7 is arranged in the third compression spring 95; a plurality of positioning grooves 96 are arranged on the horizontal fixing block 93, and one end of the L-shaped vertical fixing block 91 is arranged in the positioning groove 96.

[0103] In the above technical solution, the L-shaped vertical fixing block 91 includes a connected positioning block and a clamping rod; a horizontal triangular groove is provided at the bottom of the base plate 7, and a hole for placing the second compression spring 92 is provided in the groove. The second compression spring 92 is fixedly connected to the horizontal fixing block 93, and the horizontal fixing block 93 can slide in the triangular groove. Two positioning grooves 96 are provided on the upper end surface of the horizontal fixing block 93 to engage in a locking position with the L-shaped vertical fixing block 91. An L-shaped groove is provided at the bottom of the base plate 7 to place the L-shaped vertical fixing block 91. The L-shaped vertical fixing block 91 is connected to one end of the third compression spring 95, and the other end of the third compression spring 95 is not connected to the base plate. There is a guide column 97 protruding from the base plate 7 inside the third compression spring 95 to ensure that the L-shaped vertical fixing block 91 slides vertically along the groove and the telescopic axial stability of the third compression spring 95 is ensured. One end of the L-shaped vertical fixing block 91 cooperates with the positioning groove 96 on the horizontal fixing block 93 to engage in a locking position.

[0104] During installation, first press the L-shaped vertical fixing block 91 and the third compression spring 95 to the bottom of the groove of the base plate 7, then put the horizontal fixing block 93 and the compression spring 92 into the base plate 7 along the triangular groove, and when the outer side of the horizontal fixing block 93 is flush with the side end surface of the base plate 7, release the L-shaped vertical fixing block 91, and the third compression spring 95 pops the L-shaped vertical fixing block 91 outward and jams it in the first groove on the outside of the horizontal fixing block 93, completing the initial installation and fixation. When the base plate 7 reaches the bottom of the groove, the L-shaped vertical fixing block 91 is pressed upward by the third compression spring 95, and is freed from the clamping limit of the horizontal fixing block 93. The horizontal fixing block 93 pops out under the action of the second compression spring 92, so that the base plate 7 and the bottom of the groove are fixed more stably and accurately. The positioning groove 96 on the horizontal fixing block 93 close to the spring side, without affecting the placement into the bottom of the groove, in the initial state, the horizontal fixing block 93 is clamped in an extended state by the clamping rod of the L-shaped vertical fixing block 91, to avoid the problem that the L-shaped vertical fixing block 91 cannot be effectively pressed at the bottom of the groove due to the unevenness of the groove bottom, and the horizontal fixing block 93 cannot be popped out.

[0105] A method for using a water-blocking curtain anti-seepage membrane flat laying auxiliary device specifically comprises the following steps:

[0106] Step 1, after the excavation of the trench section 1 is completed, a groove is made at the bottom of the trench section 1 where the water cut-off curtain is laid;

[0107] Step 2, embed the fixing rod 22 into the embedding groove and fix it, and install the base plate 7 on the upper side of the embedding groove;

[0108] Step 3, laying the anti-seepage membrane 6, installing the positioning rod 21 on the upper side of the base plate 7, and adjusting the height of the positioning rod 21 to meet the construction elevation, installing the counterweight 8 and the rope cutting assembly 5, and making the end of the rope 3 pass through the positioning rod 21, the counterweight 8 and the rope cutting assembly 5 in sequence and then fixed to the notch of the slot section 1;

[0109] Step 4, connecting the lower end of the impermeable membrane 6 to the U-shaped fixing frame 23 and the U-shaped connecting block 82 respectively, and adjusting the impermeable membrane 6 to make it completely flat;

[0110] Step 5, manually pulling the trigger rod 53, so that the upper end of the trigger rod 53 moves in an inclined direction, driving the linkage shearing knife to move, and using the linkage shearing knife to shear the twisted rope 3, and cut the twisted rope 3;

[0111] Step 6, placing the push-flattening float rod 4 at the lower end of the anti-seepage membrane 6 and pouring, when the slurry contacts the bottom of the push-flattening float rod 4, an upward buoyancy and a thrust component pushing toward the anti-seepage membrane 6 are generated, and the push-flattening float rod 4 pushes the anti-seepage membrane 6 toward the side of the side wall of the trough section. As the slurry is injected, the push-flattening float rod 4 continuously floats up, and the anti-seepage membrane 6 is continuously pushed and fixed toward the side wall;

[0112] Step 7, after the pouring is completed, the push-flattening float rod 4 is removed, and the leveling and pouring of the water-blocking curtain anti-seepage membrane is completed.

Claims

1. A water-blocking curtain anti-seepage membrane flat laying auxiliary device, comprising a base plate (7) arranged in a trough section (1), and a plurality of positioning components (2) are arranged on the base plate (7) at equal intervals; characterized in that: The positioning assembly (2) comprises a fixing bracket arranged on the base plate 7, a chuck (25) is arranged on the top of the fixing bracket, a stepped connecting frame (28) is rotatably mounted on the chuck, a U-shaped fixing frame (23) is arranged at the bottom end of the stepped connecting frame (28), and a rope cutting assembly is arranged on the top of the stepped connecting frame (28); A plurality of mounting holes are provided on the side wall of the U-shaped fixing frame (23), and a first conical nail (29) is provided in each of the mounting holes; The rope cutting assembly (5) comprises a mounting rod (51) fixedly arranged on the top of the stepped connecting frame (28) and a trigger plate (52); a linkage shearing knife is arranged on the mounting rod (51); a trigger rod (53) is hingedly connected to the linkage shearing knife; and a distal end of the trigger rod (53) abuts against the trigger plate (52); The linked shearing knife comprises two shearing knives (56) rotatably arranged on the mounting rod (51), the handle sections of the two shearing knives (56) are rotatably connected to a linked plate, and the ends of the two linked plates are hingedly connected to the upper end of the trigger rod (53); the twisted rope (3) is located in the area formed by the blade sections of the two shearing knives (56); It also includes a push-flattening floating rod (4) movably arranged in the groove section (1), and an anti-lost block (42) is arranged on the push-flattening floating rod (4); A plurality of counterweights (8) are arranged at equal intervals on the bottom of the anti-seepage membrane (6).

2. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: A conical connecting ring (72) is provided at the lower end of the base plate (7), and the hinge rope positioning block (10) can be rotatably installed in the conical connecting ring (72).

3. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: The fixing bracket comprises a positioning cylinder arranged at the top of the base plate (7) and a fixing rod (22) arranged at the bottom of the base plate (7); a hinge rope positioning block (10) is arranged at the top of the fixing rod (22); a twisted rope (3) is fixed on the hinge rope positioning block (10); the end of the twisted rope (3) passes through the base plate (7) and the positioning cylinder in sequence and is then fixed on the notch of the slot section (1).

4. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: The stepped connecting frame (28) and the U-shaped fixing frame (23) are connected by bolts (26).

5. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: A second buffer spring (27) is arranged on the bolt (26).

6. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: Each linkage plate comprises a second linkage rod (57) hinged to the handle section corresponding to the shearing knife (56), a linkage block (55) is rotatably mounted on the second linkage rod (57), a first linkage rod (54) is rotatably mounted on each linkage block (55), and the two first linkage rods (54) are hinged to the upper end of the trigger rod (53).

7. The auxiliary device for leveling and laying the water-blocking curtain anti-seepage membrane according to claim 6, characterized in that: The two shearing knives (56) are rotatably mounted on the mounting rod (51) via a pin rod (58).

8. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: The chuck (25) is cylindrical in shape, and a plurality of first springs (252) are evenly arranged on the inner wall of the chuck (25), and the ends of the first springs (252) are each provided with a trapezoidal clamping block (251). A clamping head (11) is provided at the bottom of the connecting frame, and the clamping head (11) is located in a polygon formed by the plurality of the trapezoidal clamping blocks (251).

9. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: The push-flattening floating rod (4) is of a hollow structure, and the weight at both ends is greater than the weight in the middle.

10. The auxiliary device for leveling and laying the water-blocking curtain anti-seepage membrane according to claim 9, characterized in that: The bottom of the push-flat floating rod (4) is provided with an arc-shaped windward opening (41) with its opening direction away from the anti-seepage membrane (6).

11. The water-blocking curtain anti-seepage membrane flat laying auxiliary device as claimed in claim 1, characterized in that: A plurality of guide grooves (71) are also provided on the base plate (7).

12. The auxiliary device for leveling and laying water-blocking curtain anti-seepage membrane according to claim 1, characterized in that: The counterweight (8) comprises a U-shaped connecting block (82) fixed to the lower end of the anti-seepage membrane (6), a plumb ball (83) is arranged at the bottom of the U-shaped connecting block (82), and a second conical nail (84) is arranged on an outer side wall of the U-shaped connecting block (82) close to the anti-seepage membrane (6).

13. The auxiliary device for leveling and laying water-blocking curtain anti-seepage membrane according to claim 1, characterized in that: The base plate (7) is clamped in the groove section (1) through a base plate fixing assembly (9); the base plate fixing assembly (9) comprises an L-shaped vertical fixing block (91) and a horizontal fixing block (93) embedded in the bottom of the base plate (7); a second compression spring (92) is arranged between the horizontal fixing block (93) and the base plate 7; an annular groove (94) is provided at the bottom of the L-shaped vertical fixing block (91); a third compression spring (95) having one end connected to the L-shaped vertical fixing block (91) is arranged in the annular groove (94); a guide column (97) fixed to the base plate (7) is arranged in the third compression spring (95); and a plurality of positioning grooves (96) are arranged on the horizontal fixing block (93); one end of the L-shaped vertical fixing block (91) is arranged in the positioning groove (96).

14. A method for using the auxiliary device for leveling and laying the water-blocking curtain anti-seepage membrane according to any one of claims 1 to 13, characterized in that: The specific steps include: Step 1, after the excavation of the trench section (1) is completed, a groove is made at the bottom of the trench section (1) where the water cut-off curtain is laid; Step 2, embedding the fixing rod (22) into the embedding groove and fixing it, and installing the base plate (7) on the upper side of the embedding groove; Step 3, laying the anti-seepage membrane (6), installing the positioning rod (21) on the upper side of the base plate (7), adjusting the height of the positioning rod (21) to meet the construction elevation, installing the counterweight (8) and the rope shearing assembly (5), and making the end of the rope (3) pass through the positioning rod (21), the counterweight (8) and the rope shearing assembly (5) in sequence and then fixed to the notch of the trough section (1); Step 4, connecting the lower end of the anti-seepage membrane (6) to the U-shaped fixing frame (23) and the U-shaped connecting block (82) respectively, and adjusting the anti-seepage membrane (6) so that it is completely flattened; Step 5, manually pulling the trigger rod (53) so that the upper end of the trigger rod (53) moves in an inclined direction, driving the linkage shearing knife to move, and using the linkage shearing knife to shear the twisted rope (3), thereby cutting the twisted rope (3); Step 6, placing the push-flattening float rod (4) at the lower end of the anti-seepage membrane (6) and pouring, when the slurry contacts the bottom of the push-flattening float rod (4), an upward buoyancy and a thrust component pushing in the direction of the anti-seepage membrane (6) are generated, the push-flattening float rod (4) pushes the anti-seepage membrane (6) toward the side of the trough section side wall, and as the slurry is injected, the push-flattening float rod (4) continuously floats up, and the anti-seepage membrane (6) is continuously pushed flat and fixed toward the side wall; Step 7, after the pouring is completed, the push-flattening floating rod (4) is removed, and the leveling and pouring of the water-blocking curtain anti-seepage membrane is completed.

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