Geomembrane welding equipment for three-cloth two-membrane and two-cloth one-membrane

By designing the membrane-through gap and heating components of geomembrane welding equipment, the problem of gas failure and inconsistent thickness during the welding process is solved, efficient bubble elimination and one-time welding are achieved, and anti-seepage capability and construction efficiency are improved.

CN119682226AInactive Publication Date: 2025-03-25王一民
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Patent Information

Application Number
CN202510137449.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During geomembrane welding, there is a situation where gas is not discharged during welding, resulting in bubbles in the weld, affecting the anti-seepage ability, and the thickness of the two cloths and one film and three cloths is inconsistent, which can easily cause secondary welding and affect the sealing properties.

Method used

A geomembrane welding equipment is designed, including a membrane-through gap between the upper and lower plate bodies, extrude bubbles in the geomembrane using inclined guide plates and push strips, and efficient welding is achieved by heating the assembly and pressing the assembly.

Benefits of technology

It effectively eliminates bubbles during welding, improves the anti-seepage capacity after welding, and improves construction efficiency and welding quality through one-time welding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of geomembrane welding devices, and provides geomembrane welding equipment used for three-cloth two-membrane and two-cloth one-membrane, the geomembrane welding equipment comprises an upper plate body and a lower plate body, a membrane penetrating gap allowing a geomembrane to enter is formed between the upper plate body and the lower plate body, a guide plate is arranged at the front end of the lower plate body, the guide plate is an inclined plate body, and the guide plate is provided with a plurality of through holes. A mounting plate is arranged on the side wall of the front end of the upper plate body, a limiting hole is formed in the mounting plate, a vertical height plate is arranged in the limiting hole, a pushing strip is arranged at the bottom of the height plate, and the bottom surface of the pushing strip is parallel to the inclined surface of the guide plate; a heating assembly is arranged in the upper plate body and the lower plate body, the heating assembly heats the geomembrane, and a pressing assembly is arranged between the upper plate body and the lower plate body; by means of the device, bubbles at the weld joint can be effectively eliminated before welding, so that generation of the bubbles at the weld joint is reduced, and the impermeability after welding is improved.
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Description

Technical Field

[0001] The invention belongs to the field of geomembrane welding devices, in particular to a geomembrane welding device used for three-cloth and two-membrane geomembrane welding and two-cloth and one-membrane geomembrane welding. Background Art

[0002] Geomembrane is mainly made of high-density polyethylene resin, and can also be made of low-density polyethylene, polyvinyl chloride, ethylene / vinyl acetate copolymer and other polymer materials through high-temperature melting, extrusion, calendering and other processes;

[0003] Geomembrane has a very high anti-seepage coefficient and can effectively block the penetration of moisture and gas; it has the characteristics of high tensile strength, tear strength, and puncture strength, can withstand certain external forces, and can withstand long-term erosion from natural environments such as sunlight, wind and rain, and is not easy to age and damage. Therefore, geomembranes are widely used in various engineering fields.

[0004] Among them, two cloths and one membrane, as the name suggests, is two layers of cloth and one layer of membrane. It is a composite geomembrane, which is a geotechnical anti-seepage material made of plastic film as the anti-seepage base material and composited with non-woven fabric.

[0005] Three-cloth and two-membrane is also a composite geomembrane, which is an impermeable material composed of three layers of non-woven fabrics and two layers of high-density polyethylene membranes. The above-mentioned structural form combines the reinforcement, filtration, drainage, protection, and isolation effects of geotextiles with the sealing and isolation functions of geomembrane.

[0006] During the construction of geomembranes, welding is usually used to ensure the firmness and security of the connection, especially in situations where high strength and impermeability are required. Welding can provide a continuous, seamless connection that helps prevent the penetration of water and other liquids.

[0007] However, during the welding process, the internal gas at the welding point may not be discharged, so that after the geomembrane welding is completed, there will be bubbles in the weld, which will affect the anti-seepage ability of the geomembrane connection in the later stage.

[0008] Moreover, when welding two cloths and one membrane and three cloths and two membranes, secondary welding is easily caused due to the inconsistent thickness, thus affecting the sealing after welding. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides a geomembrane welding equipment for three cloths and two membranes and two cloths and one membrane, so as to solve the problem in the prior art that in the process of welding geomembranes, gas is not discharged during welding, resulting in bubbles in the weld.

[0010] A geomembrane welding device for three-cloth two-membrane and two-cloth one-membrane, comprising an upper plate body and a lower plate body, a membrane-penetrating gap for geomembrane to enter is formed between the upper plate body and the lower plate body, a guide plate is arranged at the front end of the lower plate body, the guide plate is an inclined plate body, and the more forward it is inclined toward the ground, a mounting plate is arranged at the front end side wall of the upper plate body, a limiting hole is arranged on the mounting plate, a vertical height plate is arranged in the limiting hole, a pushing strip is arranged at the bottom of the height plate, and the bottom surface of the pushing strip is parallel to the inclined surface of the guide plate;

[0011] A heating assembly is provided inside the upper plate body and the lower plate body, and the heating assembly heats the geomembrane. A clamping assembly is provided between the upper plate body and the lower plate body, and the clamping assembly is located behind the heating assembly to clamp the geomembrane after welding.

[0012] Preferably, the bottom of the lower plate body is symmetrically provided with running wheels which are distributed at intervals, a rubber belt is provided between the outer walls of the running wheels, and the running wheels are externally connected to a power supply, and the running wheels drive the upper plate body and the lower plate body to move.

[0013] Preferably, the guide plate is fixedly connected to the lower plate body, and two groups of vertically spaced threaded locking holes are provided on the height plate. Positioning screws are symmetrically provided on the outside of the height plate. When the pushing strip comes into contact with the geomembrane, the positioning screws are locked in the corresponding threaded locking holes.

[0014] Preferably, a mounting frame is provided on the bottom surface of the upper plate body, and the mounting frame is located in front of the heating assembly. Guide wheels are provided inside the mounting frame and are spaced apart in a horizontal direction. The guide wheels are movably connected to the mounting frame. A driving plate is provided on the top of the lower plate body, and the guide wheel is located inside the driving plate, and the geomembrane passes between the guide wheel and the driving plate.

[0015] Preferably, the heating assembly includes an electric heating plate and a power supply, and the number of the electric heating plates is two and is distributed in the transmembrane gap. The electric heating plate of the lower layer is fixedly connected to the top of the lower plate body, and the electric heating plate of the upper layer is movable. The power supply is electrically connected to the electric heating plate, and a regulating assembly is provided on the electric heating plate of the upper layer, and the regulating assembly drives the electric heating plate of the upper layer to achieve a change in height.

[0016] Preferably, the regulating assembly includes a regulating plate, a guide rail, a sliding block and a positioning card plate, the regulating plate is symmetrically installed on the top of the upper electric heating plate, and the top of the regulating plate extends from the upper plate body, the regulating plate and the upper plate body are movably connected, and the top of the upper plate body is symmetrically provided with placement grooves, and the number of the guide rails is two and they are respectively installed in the placement grooves.

[0017] Preferably, the sliding plates are symmetrically distributed on each of the guide rails, the positioning card plates are fixed on the top of the sliding plates, the left and right side walls of the regulating plate are symmetrically provided with vertically spaced card slots, and the positioning card plates cooperate with the card slots.

[0018] Preferably, a fixedly connected handle is provided on the top of the regulating plate, a control box is provided on the top of the upper plate body and between the two regulating plates, the control box is electrically connected to the power supply, the control box is used to control the electric heating plate, and a handle is provided on the top of the control box.

[0019] Preferably, the clamping assembly includes a supporting plate, a clamping wheel, a lifting plate and a cylinder, the supporting plate is connected to the top of the lower plate body, the cylinder is installed on the top of the upper plate body and the cylinder rod passes through the upper plate body and is connected to the lifting plate, the number of the clamping wheels is multiple and laterally spaced, and the clamping wheels are rotatably connected to the lifting plate.

[0020] Preferably, the wheel diameters of the pressure wheels are inconsistent, and the closer to the tail end of the membrane gap, the smaller the wheel diameter of the pressure wheel. The tail ends of the upper plate body and the lower plate body are provided with export plates, and the two export plates are inclined downward. After welding, the geomembrane comes out of the two export plates. The top of the upper plate body is symmetrically provided with multi-layer distributed weighting plates.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention forms a membrane gap between the upper plate body and the lower plate body by setting an upper plate body and a lower plate body, and two cloths and one membrane and three cloths and two membranes are respectively put in from both sides of the membrane gap, and the geomembrane is placed on the top surface of the inclined guide plate. The height plate is moved to make the pushing bar at the bottom contact with the upper geomembrane, and the height plate is locked. During the movement of the device, the two layers of geomembranes move between the guide plate and the pushing bar. The pushing bar can effectively squeeze out the bubbles between the two layers of geomembranes, thereby effectively eliminating the bubbles before the heating device heats them, avoiding the situation where bubbles exist in the weld after welding is completed, and improving the anti-seepage ability of the two cloths and one membrane and the three cloths and two membranes after welding.

[0023] 2. The present invention sets a membrane-penetrating gap, so that two cloths and one membrane and three cloths and two membranes can be put in from both sides of the membrane-penetrating gap and overlapped with each other, so that the two cloths and one membrane and the three cloths and two membranes are in a staggered state, and the upper and lower heating plates heat them together, which increases the hot melting time of the two cloths and one membrane and the three cloths and two membranes. After the heating is completed, the two cloths and one membrane and the three cloths and two membranes are pressed together by the pressing assembly, so that the two cloths and one membrane and the three cloths and two membranes can be welded at one time, which not only improves the quality of welding, but also speeds up the construction and improves the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the integral geomembrane welding component of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the electric heating plate and the membrane-penetrating gap and other components of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the height plate and the mounting plate of the present invention being separated;

[0027] Figure 4 This is a schematic diagram of the structure of the control component of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the heating assembly and the pressing assembly of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of components such as the clamping wheel and the bearing plate of the present invention.

[0030] In the figure:

[0031] 1. Upper plate; 2. Lower plate; 3. Membrane gap; 4. Guide plate; 5. Mounting plate; 6. Limiting hole; 7. Height plate; 8. Pushing strip; 9. Traveling wheel; 10. Rubber belt; 11. Thread locking hole; 12. Positioning screw; 13. Mounting frame; 14. Guide wheel; 15. Electric heating plate; 16. Power supply; 17. Control plate; 18. Guide track; 19. Sliding block; 20. Positioning card plate; 21. Placement slot; 22. Card slot; 23. Handle; 24. Control box; 25. Handle; 26. Loading plate; 27. Clamping wheel; 28. Lifting plate; 29. ​​Cylinder; 30. Export plate; 31. Driving plate; 32. Weighting plate. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0033] As attached Figure 1 To Attachment Figure 6 As shown:

[0034] Embodiment 1: The present invention provides a geomembrane welding device for three-cloth two-membrane and two-cloth one-membrane, comprising an upper plate body 1 and a lower plate body 2, a through-membrane gap 3 for geomembrane to enter is formed between the upper plate body 1 and the lower plate body 2, a guide plate 4 is provided at the front end of the lower plate body 2, the guide plate 4 is an inclined plate body, and the more forward it is inclined toward the ground, the front end side wall of the upper plate body 1 is provided with a mounting plate 5, a limiting hole 6 is provided on the mounting plate 5, a vertical height plate 7 is provided in the limiting hole 6, a pushing strip 8 is provided at the bottom of the height plate 7, and the bottom surface of the pushing strip 8 is parallel to the inclined surface of the guide plate 4;

[0035] A heating assembly is provided inside the upper plate body 1 and the lower plate body 2 to heat the geomembrane. A clamping assembly is provided between the upper plate body 1 and the lower plate body 2. The clamping assembly is located behind the heating assembly to clamp the geomembrane after welding.

[0036] It should be noted that, by setting the upper plate body 1 and the lower plate body 2, a membrane gap 3 is formed between the upper plate body 1 and the lower plate body 2. When the two layers of geomembrane are placed in the membrane gap 3, the geomembrane is placed on the top surface of the inclined guide plate 4, and the height plate 7 is moved so that the push bar at the bottom contacts with the upper geomembrane, and the height plate 7 is locked. During the movement of the device, the two layers of geomembrane move between the guide plate 4 and the push bar 8. The push bar 8 can effectively squeeze out the bubbles between the two layers of geomembrane, thereby effectively eliminating the bubbles before the heating device heats it, avoiding the presence of bubbles in the weld after welding is completed, and improving the anti-seepage ability after welding.

[0037] In this embodiment, the bottom of the lower plate body 2 is symmetrically provided with running wheels 9 distributed at intervals, a rubber belt 10 is provided between the outer walls of the running wheels 9, and the running wheels 9 are externally connected to a power supply 16, and the running wheels 9 drive the upper plate body 1 and the lower plate body 2 to achieve movement.

[0038] It should be noted that the rubber belt 10 is rotatably connected to the outer wall of the running wheel 9. The connection and movement mode between the running wheel 9 and the rubber belt 10 is the existing technology and will not be elaborated on here. One of the running wheels 9 can be driven to move by a motor, and the other running wheels 9 can be driven to move by the rubber belt 10, thereby driving the automatic movement of the welding device and realizing the automatic welding of the geomembrane.

[0039] In this embodiment, the guide plate 4 is fixedly connected to the lower plate body 2, and two groups of vertically spaced threaded locking holes 11 are provided on the height plate 7. Positioning screws 12 are symmetrically provided on the outside of the height plate 7. When the pushing strip 8 comes into contact with the geomembrane, the positioning screws 12 are locked in the corresponding threaded locking holes 11.

[0040] It should be noted that the height plate 7 is movably connected to the mounting plate 5. By arranging spaced threaded locking holes 11 on the height plate 7 and locking the positioning screws 12 in the threaded locking holes 11, the position of the pushing strip 8 at the bottom of the height plate 7 can be adjusted. The thickness of the three cloths and two membranes is inconsistent with that of the two cloths and one membrane. By locking the positioning screws 12 in the threaded locking holes 11 at different height positions, the pushing strip 8 can be fitted on geomembranes of different thicknesses, so that when the device is moving, the pushing strip 8 can squeeze out the bubbles between the two layers of geomembranes.

[0041] In this embodiment, a mounting frame 13 is provided on the bottom surface of the upper plate body 1, and the mounting frame 13 is located in front of the heating assembly. Guide wheels 14 are arranged inside the mounting frame 13 and are spaced apart in the horizontal direction. The guide wheels 14 are movably connected to the mounting frame 13. A driving plate 31 is provided on the top of the lower plate body 1, and the guide wheel 14 is located inside the driving plate 31. The geomembrane passes between the guide wheel 14 and the driving plate 13.

[0042] It should be noted that, through the guide wheel 14, the geomembrane will enter between the guide wheel 14 and the driving plate 31 after being squeezed by the pushing strip 8, and the guide wheel 14 will enter the inside of the driving plate 31. Therefore, after the geomembrane is bonded, the driving plate 31 can drive the guide wheel 31 to move together during the movement, so that the upper plate body 1 and the lower plate body 2 can move together. The guide wheel 14 is in a rotating manner, so as to provide a moving stroke for the passing membrane, so that it can enter the heating assembly more smoothly and heat the geomembrane.

[0043] In this embodiment, the heating assembly includes an electric heating plate 15 and a power supply 16. There are two electric heating plates 15 distributed in the membrane gap 3. The lower electric heating plate 15 is fixedly connected to the top of the lower plate body 2, and the upper electric heating plate 15 is movable. The power supply 16 is electrically connected to the electric heating plate 15. A regulating assembly is provided on the upper electric heating plate 15, and the regulating assembly drives the upper electric heating plate 15 to achieve a change in height.

[0044] It should be noted that the electric heating plate 15 is electrically connected to the power supply 16. After the electric heating plate 15 is powered on, heating utilizes the principle of electromagnetic induction to generate eddy currents inside the metal through high-frequency current, thereby generating heat, thereby quickly heating the interface part of the geomembrane in a short time and improving welding efficiency.

[0045] In this embodiment, the regulating assembly includes a regulating plate 17, a guide rail 18, a sliding block 19 and a positioning card plate 20. The regulating plate 17 is symmetrically installed on the top of the upper electric heating plate 15, and the top of the regulating plate 17 extends from the upper plate body 1. The regulating plate 17 is movably connected to the upper plate body 1. The top of the upper plate body 1 is symmetrically provided with a placement groove 21, and the number of guide rails 18 is two, which are respectively installed in the placement grooves 21.

[0046] It should be noted that, through the setting of the regulating component, the regulating plate 17 is made of insulating material, so that during the heating process of the electric heating plate 15, there will be no electrical conduction with the regulating plate 17, and the regulating plate 17 is set in a highly variable manner. Because the three cloths and two membranes and the two cloths and one membrane have different thicknesses, the electric heating plate 15 can adapt to geomembranes of different thicknesses. The electric heating plate 15 is designed to have two layers, the upper and lower layers of the geomembrane can be heated together, thereby improving the heating efficiency.

[0047] In this embodiment, the sliding blocks 19 are symmetrically distributed on each guide rail 18, the positioning card plate 20 is fixed on the top of the sliding plate, and the left and right side walls of the regulating plate 17 are symmetrically provided with vertically spaced card slots 22, and the positioning card plate 20 and the card slots 22 cooperate with each other.

[0048] It should be noted that the side walls of the regulating plate 17 are provided with slots 22 that are spaced apart. When the regulating plate 17 is moved to a suitable height, the sliding block 19 is moved on the guide track 18, and the positioning card plate 20 is inserted into the slot 22, so that the regulating plate 17 can be fixed, thereby ensuring the stability of the electric heating plate 15 heating the geomembrane.

[0049] In this embodiment, a fixedly connected handle 23 is provided on the top of the regulating plate 17, and a control box 24 is provided on the top of the upper plate body 1 and between the two regulating plates 17. The control box 24 is electrically connected to the power supply 16. The control box 24 is used to control the electric heating plate 15, and a handle 25 is provided on the top of the control box 24.

[0050] It should be noted that by providing a handle 23 on the top of the control plate 17, the height of the control plate 17 can be adjusted, which is convenient and simple. The control box 24 provided can be used to start and stop the electric heating plate 15, thereby controlling the switch of the electric heating.

[0051] In this embodiment, the clamping assembly includes a supporting plate 26, a clamping wheel 27, a lifting plate 28 and a cylinder 29. The supporting plate 26 is connected to the top of the lower plate body 2, the cylinder 29 is installed on the top of the upper plate body 1 and the cylinder 29 rod passes through the upper plate body 1 and is connected to the lifting plate 28. The number of clamping wheels 27 is multiple and is distributed laterally at intervals. The clamping wheels 27 are rotatably connected to the lifting plate 28.

[0052] It should be noted that the supporting plate 26 is set to slide on the top surface of the supporting plate 26 after the two layers of geomembrane are heated. The cylinder 29 can control the height of the lifting plate 28 to change, so that the pressure wheel 27 presses the geomembrane after heating, so that the two layers of geomembrane are pressed together to achieve the welding of the geomembrane. Moreover, through the setting of the cylinder 29, geomembranes of different thicknesses can be pressed, thereby ensuring the welding quality of the geomembrane.

[0053] In this embodiment, the wheel diameters of the clamping wheel 27 are inconsistent, and the closer to the tail end of the membrane gap 3, the smaller the wheel diameter of the clamping wheel 27 is. The tail ends of the upper plate body 1 and the lower plate body 2 are provided with an export plate 30, and the two export plates 30 are inclined downward. After welding, the geomembrane comes out of the two export plates 30. The top of the upper plate body 1 is symmetrically provided with multi-layer distributed weighting plates 32.

[0054] It should be noted that, by making the wheel diameters of the clamping wheel 27 inconsistent, after the geomembrane just comes out of the heating assembly, the gap between the clamping wheel 27 and the supporting plate 26 is minimized, thereby providing a greater clamping force. After the clamping is completed, the clamping force gradually decreases to avoid the geomembrane being pressed and deformed. The weighting plate 32 is provided, and the weighting plate 32 is heavier, so that after the upper plate body 1 and the lower plate body 2 are docked, it can be ensured that the device is integrated during the movement process, and the upper plate body 1 and the lower plate body 2 are always kept together. During the movement of the lower plate body 2, the driving plate 31 will fit with the guide wheel 14, thereby driving the upper plate body 1 and the lower plate body 2 to move together.

[0055] The method of using the above-mentioned embodiment involves welding two cloths and one membrane and three cloths and two membranes. When the geomembrane needs to be welded, the two layers of geomembrane are placed into the membrane gap 3 from both sides along the guide plate 4, so that they are located between the guide wheel 14 and the driving plate 31. The two cloths and one membrane and the three cloths and two membranes are stacked in the membrane gap 3, and the reasonable spacing of the overlap between the two is adjusted. At this time, the height plate 7 is in an active state, and the height plate 7 is moved downward to make the push bar 8 fit with the upper geomembrane, and the positioning screw 12 is locked in the threaded locking hole 11 to fix the height plate 7, and the device is started to move the welding device along the geomembrane. The push bar 8 presses the upper geomembrane, thereby squeezing out the bubbles between the two geomembranes. After the bubbles are squeezed out, they enter the heating assembly along the guide wheel 14;

[0056] The power supply 16 supplies power to the electric heating plate 15, thereby generating eddy currents inside the metal through high-frequency currents, thereby generating heat. The upper electric heating plate 15 is movable, and the distance-adjusting plate on the top of the upper electric heating plate 15 is moved to a suitable height, and force is applied to the sliding block 19, and the sliding block 19 moves on the guide track 18, so that the positioning card plate 20 is inserted into the card slot 22 of the corresponding height, so that the distance-adjusting plate is positioned, and at the same time, the two heating plates are attached to the geomembrane to heat it;

[0057] After the heating is completed, the geomembrane will move into the top surface of the bearing plate 26, and the cylinder 29 will be started. The telescopic rod of the cylinder 29 is connected to the lifting plate 28, and the lifting plate 28 is provided with a rotatably connected clamping wheel 27. The outer wall of the clamping wheel 27 is tightly attached to the welding point of the two layers of geomembrane, so that after the heating is completed, it is pressed, so that the two layers of geomembrane are pressed and stuck together after the heating is completed, so as to realize the welding of the two layers of geomembrane, and finally come out from between the two export plates 30. Through the above-mentioned welding method, bubbles in the welding process of the geomembrane can be effectively reduced, and one-time welding of two cloths and one membrane and three cloths and two membranes can be realized, which not only ensures the quality of welding, but also shortens the welding time and improves the construction efficiency.

[0058] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane, characterized by: include, An upper plate body (1) and a lower plate body (2), wherein a through-membrane gap (3) is formed between the upper plate body (1) and the lower plate body (2) for allowing the geomembrane to enter, a guide plate (4) is provided at the front end of the lower plate body (2), the guide plate (4) is an inclined plate body, and the guide plate (4) is inclined toward the ground as it moves forward, a mounting plate (5) is provided at the front end side wall of the upper plate body (1), a limiting hole (6) is provided on the mounting plate (5), a vertical height plate (7) is provided in the limiting hole (6), a pushing strip (8) is provided at the bottom of the height plate (7), and the bottom surface of the pushing strip (8) is parallel to the inclined surface of the guide plate (4); A heating assembly is provided inside the upper plate body (1) and the lower plate body (2), and the heating assembly heats the geomembrane. A clamping assembly is provided between the upper plate body (1) and the lower plate body (2), and the clamping assembly is located behind the heating assembly to clamp the geomembrane after welding.

2. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 1, characterized in that: The bottom of the lower plate body (2) is symmetrically provided with running wheels (9) distributed at intervals, a rubber belt (10) is provided between the outer walls of the running wheels (9), and the running wheels (9) are externally connected to a power supply (16), and the running wheels (9) drive the upper plate body (1) and the lower plate body (2) to move.

3. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 1, characterized in that: The guide plate (4) is fixedly connected to the lower plate body (2), and two groups of vertically spaced threaded locking holes (11) are provided on the height plate (7). Positioning screws (12) are symmetrically provided on the outside of the height plate (7). When the pushing strip (8) comes into contact with the geomembrane, the positioning screws (12) are locked in the corresponding threaded locking holes (11).

4. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 1, characterized in that: The bottom surface of the upper plate body (1) is provided with a mounting frame (13), the mounting frame (13) is located in front of the heating component, the mounting frame (13) is provided with guide wheels (14) spaced apart in the horizontal direction, the guide wheels (14) are movably connected to the mounting frame (13), the top of the lower plate body (1) is provided with a driving plate (31), the guide wheel (14) is located inside the driving plate (31), and the geomembrane passes between the guide wheel (14) and the driving plate (13).

5. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 1, characterized in that: The heating assembly comprises an electric heating plate (15) and a power source (16). The number of the electric heating plates (15) is two and they are distributed in the transmembrane gap (3). The lower electric heating plate (15) is fixedly connected to the top of the lower plate body (2). The upper electric heating plate (15) is movable. The power source (16) is electrically connected to the electric heating plate (15). The upper electric heating plate (15) is provided with a regulating component, and the regulating component drives the upper electric heating plate (15) to achieve a change in height.

6. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 5, characterized in that: The regulating assembly comprises a regulating plate (17), a guide rail (18), a sliding block (19) and a positioning card plate (20); the regulating plate (17) is symmetrically mounted on the top of the upper electric heating plate (15), and the top of the regulating plate (17) extends from the upper plate body (1); the regulating plate (17) and the upper plate body (1) are movably connected; the top of the upper plate body (1) is symmetrically provided with placement grooves (21); and the number of the guide rails (18) is two and they are respectively mounted in the placement grooves (21).

7. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 6, characterized in that: The sliding plates are symmetrically distributed on each of the guide rails (18); the positioning card plates (20) are fixed on the top of the sliding plates; the left and right side walls of the regulating plate (17) are symmetrically provided with card slots (22) distributed vertically at intervals; the positioning card plates (20) and the card slots (22) cooperate with each other.

8. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 7, characterized in that: A handle (23) that is fixedly connected is provided on the top of the regulating plate (17); a control box (24) is provided on the top of the upper plate body (1) and between the two regulating plates (17); the control box (24) is electrically connected to the power source (16); the control box (24) is used to control the electric heating plate (15); and a handle (25) is provided on the top of the control box (24).

9. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 1, characterized in that: The clamping assembly comprises a bearing plate (26), a clamping wheel (27), a lifting plate (28) and a cylinder (29); the bearing plate (26) is connected to the top of the lower plate body (2); the cylinder (29) is installed on the top of the upper plate body (1) and the cylinder (29) rod passes through the upper plate body (1) and is connected to the lifting plate (28); the number of the clamping wheels (27) is multiple and is distributed in a transverse interval; the clamping wheels (27) are rotatably connected to the lifting plate (28).

10. The geomembrane welding equipment for three-cloth-two-membrane and two-cloth-one-membrane as claimed in claim 9, characterized in that: The wheel diameters of the clamping wheel (27) are inconsistent, and the closer to the tail end of the membrane gap (3), the smaller the wheel diameter of the clamping wheel (27). The tail ends of the upper plate body (1) and the lower plate body (2) are provided with an export plate (30), and the two export plates (30) are inclined downward. After welding, the geomembrane comes out of the two export plates (30). The top of the upper plate body (1) is symmetrically provided with multiple layers of distributed weighting plates (32).