Sealing grouting device and roof maintenance area partitioning method

Abstract

This invention relates to the field of building waterproofing construction, and discloses a sealing grouting device and a method for isolating a roof repair area. The sealing grouting device includes a sealing baffle, two elastic baffles, a fastening assembly, and a grouting assembly. One end of each of the two elastic baffles is connected to one of the two sides of the sealing baffle in the width direction, and the other end extends downward toward the sealing baffle. The fastening assembly applies opposing pressures to the two elastic baffles. The grouting assembly has a grouting inlet end and a grouting outlet end. The grouting inlet end connects to and penetrates the sealing baffle, and the grouting outlet end extends downward toward the sealing baffle. This sealing grouting device can be applied to the grouting isolation of non-repair areas and repair areas on a roof, effectively solving the problem of water leakage from non-repair areas flowing into repair areas. Furthermore, this isolation method effectively reduces the cost and difficulty of repairs, and improves the quality and efficiency of repairs.

Description

Technical Field

[0001] This invention belongs to the field of building waterproofing construction, specifically relating to a sealing grouting device and a method for separating roof repair areas. Background Technology

[0002] After repairing a specific area of ​​the roof, measures need to be taken to prevent leaks from the unrepaired area from flowing into the repaired area. Current technology involves completely removing all structures above the reinforced concrete layer in the repair area to create a recess. A waterproof membrane is then deposited to cover the recess walls, and the original structure is rebuilt within the membrane-covered recess. Another layer of waterproof membrane is then applied to the rebuilt structure. This method has the following drawbacks: it involves a large amount of excavation, generates significant waste, and requires a large amount of waterproof membrane, thus increasing both the cost and difficulty of the repair. Summary of the Invention

[0003] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a sealing grouting device and a method for separating roof maintenance areas, which can effectively reduce the cost and difficulty of roof maintenance and improve the quality and efficiency of maintenance.

[0004] To achieve the above objectives, the present invention provides a sealing and grouting device, the sealing and grouting device comprising:

[0005] Sealing baffle;

[0006] Two elastic baffles, one end of each elastic baffle is connected to the two sides of the sealing baffle in the width direction, and the other end of each elastic baffle extends downward toward the sealing baffle;

[0007] Fastening components are used to apply opposing counterforces to the two elastic baffles respectively;

[0008] The grouting assembly has a grouting inlet end and a grouting outlet end, the grouting inlet end being connected to and passing through the sealing baffle, and the grouting outlet end extending downward toward the sealing baffle.

[0009] Optionally, the sealing baffle has connecting arms extending downward on both sides in the width direction, and one end of each of the two elastic baffles is snapped into the two connecting arms.

[0010] Optionally, the fastening assembly includes:

[0011] Two support rods, the first ends of the two support rods are hinged to each other, and the second ends respectively abut against the opposing sides of the two elastic baffles;

[0012] A force-applying screw passes through and is screwed onto the sealing baffle, with one end abutting against the hinge of the two support rods.

[0013] Optionally, the fastening assembly further includes two support plates, which are respectively disposed on the opposing sides of the two elastic baffles, and the second ends of the two struts are respectively hinged to the opposing sides of the two support plates.

[0014] Optionally, the grouting assembly includes:

[0015] Two grouting pipes, the first ends of the two grouting pipes are connected and pass through the sealing baffle, the second ends extend toward the bottom of the sealing baffle, and the two grouting pipes are arranged at intervals along the length of the sealing baffle.

[0016] The grout outlet pipe extends along the length of the sealing baffle and is connected at both ends to the second ends of the two grouting pipes respectively. The grout outlet pipe has multiple grout outlet holes arranged axially at intervals on its pipe wall.

[0017] Optionally, the grouting assembly further includes two connectors, the first ends of which are detachably nested with the second ends of the two grouting pipes, and the second ends extend toward each other and are nested with the two ends of the grout outlet pipe, respectively.

[0018] Optionally, the sealing grouting device further includes a roll clamping plate, which is detachably and securely connected to the top surface of the sealing baffle.

[0019] Optionally, the sealing baffle includes a plurality of baffle units that are detachably spliced ​​together sequentially along the length direction, and the elastic baffle includes a plurality of baffle units that are detachably spliced ​​together sequentially along the length direction of the sealing baffle.

[0020] Optionally, the sealing grouting device includes a resilient sealing gasket that is fitted onto the end of the sealing baffle in the longitudinal direction.

[0021] The present invention also provides a method for partitioning a roof maintenance area, the method employing the above-mentioned sealing and grouting device and comprising:

[0022] Step S1. Cut a groove at the junction of the maintenance area and the non-maintenance area of ​​the roof to form a groove at the junction that extends to the surface of the reinforced concrete layer of the roof.

[0023] Step S2. The sealing baffle of the sealing grouting device is sealed in the groove opening of the trench, so that the two elastic baffles of the sealing grouting device are pressed and fastened to the two side walls of the groove opening, and the grouting outlet end of the grouting component of the sealing grouting device extends to the bottom of the trench.

[0024] Step S3. Fill the trench with waterproof grout through the grouting assembly and allow the waterproof grout to solidify to form a water-retaining wall.

[0025] Optionally, the sealing grouting device further includes a roll clamping plate, which is detachably and securely connected to the top surface of the sealing baffle.

[0026] Following step S3, the roof maintenance area partitioning method further includes:

[0027] Step S4. Insert the exposed waterproof membrane of the repair area between the top surface of the membrane clamping plate and the sealing baffle, and press the exposed waterproof membrane onto the top surface of the sealing baffle by the membrane clamping plate.

[0028] The sealing and grouting device provided by this invention can be applied to the separation of non-maintenance and maintenance areas on a roof. In practical application, a groove is cut at the junction of the maintenance and non-maintenance areas on the roof to form a trench. The sealing baffle of the sealing and grouting device is sealed at the opening of the trench, and opposing pressures are applied to two elastic baffles by fastening components, thereby pressing and fastening the two elastic baffles to the two side walls of the trench opening. In this way, the sealing and grouting device can be fixedly installed in the trench. At this time, waterproof grout is injected into the trench through the grouting components. After the waterproof grout fills the trench and solidifies to form a water-retaining wall, the formed water-retaining wall is connected to the sealing baffle and elastic baffles of the sealing and grouting device, effectively separating the non-maintenance and maintenance areas on the roof. This effectively solves the problem of water leakage from the non-maintenance area flowing into the maintenance area. Moreover, this separation method requires less cutting of the original roof structure, generates less waste, and does not require excessive waterproof membrane. In this way, the cost and difficulty of maintenance are effectively reduced, and the efficiency and quality of maintenance are improved.

[0029] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a cross-sectional schematic diagram of a sealing and grouting device provided in one embodiment of the present invention;

[0032] Figure 2 for Figure 1 Another cross-sectional view of the sealing and grouting device in the middle;

[0033] Figure 3 for Figure 1Side view of the sealing grouting device in the middle;

[0034] Figure 4 for Figure 1 A schematic diagram of the connection structure between the sealing baffle and the roll clamping plate;

[0035] Figure 5 for Figure 1 The diagram shows the structure of the sealing and grouting device used in the partition of the roof maintenance area.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100 Sealing baffle; 200 Elastic baffle

[0038] 300 strut, 400 force-applying screw

[0039] 500 support plate, 600 grouting pipe

[0040] 700 slurry outlet pipe 800 connector

[0041] 900 Roll Clamping Plate

[0042] a. Maintenance area b. Non-maintenance area Detailed Implementation

[0043] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0045] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positions of components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] The present invention first provides a sealing and grouting device.

[0048] In one implementation, refer to the appendix. Figure 1 To be continued Figure 3As shown, the sealing and grouting device includes a sealing baffle 100, two elastic baffles 200, a fastening assembly, and a grouting assembly. One end of each of the two elastic baffles 200 is connected to the two sides of the sealing baffle 100 in the width direction, and the other end of each extends downward toward the sealing baffle 100. The fastening assembly is used to apply opposing pressures to the two elastic baffles 200 respectively. The grouting assembly has a grouting inlet end and a grouting outlet end. The grouting inlet end is connected to and passes through the sealing baffle 100, and the grouting outlet end extends downward toward the sealing baffle 100.

[0049] See attached document Figure 5 As shown, the sealing grouting device in this embodiment can be applied to the partition between the non-maintenance area b and the maintenance area a on the roof. In actual application, a groove is cut at the junction of the maintenance area a and the non-maintenance area b on the roof to form a trench. The sealing baffle 100 of the sealing grouting device is sealed at the opening of the trench, and opposing pressures are applied to the two elastic baffles 200 by the fastening components, so that the two elastic baffles 200 are pressed and fastened to the two side walls of the trench opening. In this way, the sealing grouting device can be fixedly installed in the trench. At this time, grouting is performed. The component injects waterproof grout into the trench. After the waterproof grout fills the trench and solidifies to form a water-retaining wall, the formed water-retaining wall is connected to the sealing baffle 100 and elastic baffle 200 of the sealing grouting device, effectively separating the non-maintenance area b and the maintenance area a of the roof. This effectively solves the problem of water leakage from the non-maintenance area b flowing into the maintenance area a. Moreover, this separation method requires less cutting of the original roof structure, generates less waste, and does not require the use of excessive waterproof membrane. In this way, the cost and difficulty of maintenance are effectively reduced, and the quality and efficiency of maintenance are improved.

[0050] Specifically, the elastic baffle 200 can be a rubber baffle, which can deform towards the side wall of the groove under the pressure applied by the fastening assembly to press and fasten it to the side wall, and also play a certain role in sealing and blocking water. The sealing baffle 100 can be a metal baffle to give the sealing grouting device good structural strength.

[0051] In one implementation, refer to the appendix. Figure 1 To be continued Figure 3 As shown, the sealing baffle 100 has connecting arms extending downwards on both sides in the width direction, and one end of each of the two elastic baffles 200 is snapped into one of the two connecting arms. In this way, the elastic baffles 200 and the sealing baffle 100 can be detachably connected.

[0052] Specifically, the end face of the connecting arm of the sealing baffle 100 has a groove, and the end face of one end of the elastic baffle 200 has a protrusion. One end of the elastic baffle 200 is inserted into the groove through the protrusion to be snapped into the connecting arm of the sealing baffle 100.

[0053] In one implementation, refer to the appendix. Figure 1 To be continued Figure 3 As shown, the fastening assembly includes two support rods 300 and a force-applying screw 400. The first ends of the two support rods 300 are hinged to each other, and the second ends abut against the opposing sides of the two elastic baffles 200 respectively. The force-applying screw 400 passes through and is screwed onto the sealing baffle 100, and one end abuts against the hinge of the two support rods 300.

[0054] Understandably, by turning the force-applying screw 400 downward, the force-applying screw 400 can apply a counterforce to the hinge of the two support rods 300, and then the counterforce is transmitted to the two elastic baffles 200 through the two support rods 300, thereby applying opposing counterforces to the two elastic baffles 200.

[0055] Specifically, a handle can be provided at the end of the force-applying screw 400 away from the hinge joint of the two support rods 300, so that the operator can tighten the force-applying screw 400 more effortlessly. In practical application, when the force-applying screw 400 is tightened until it can no longer move downwards, it means that the elastic baffle 200 has been firmly pressed against the side wall of the groove opening. At this time, the part of the force-applying screw 400 protruding from the top surface of the sealing baffle 100 can be cut off, so that the top surface of the sealing baffle 100 remains flat, so as to facilitate the subsequent covering and arrangement of the waterproof membrane on the top surface of the sealing baffle 100.

[0056] In this embodiment, one end of the force-applying screw 400 can be hinged to the hinge of the two support rods 300, or one end of the force-applying screw 400 can abut against the hinge of the two support rods 300.

[0057] In one implementation, refer to the appendix. Figure 1 To be continued Figure 3 As shown, the fastening assembly also includes two support plates 500, which are respectively disposed on the opposing sides of the two elastic baffles 200. The second ends of the two struts 300 are respectively hinged to the opposing sides of the two support plates 500. With this arrangement, the pressure of the struts 300 can be transmitted more evenly to the elastic baffles 200 through the support plates 500, effectively making the elastic baffles 200 more firmly and reliably pressed against the sidewall of the groove opening.

[0058] In this embodiment, the support plate 500 is arranged at the bottom side of the elastic baffle 200 and is detachably connected to the side of the elastic baffle 200 by means of a snap-fit ​​connection. Specifically, the side of the elastic baffle 200 forms a protrusion, and the side of the support plate 500 forms a groove. The support plate 500 is detachably connected to the side of the elastic baffle 200 by snapping the protrusion into the groove. Of course, in some other embodiments, the support plate 500 can also be connected to the side of the elastic baffle 200 by means of a fastener.

[0059] In this embodiment, the two support rods 300 and the force-applying screw 400 form a force-applying mechanism. The fastening assembly may include multiple force-applying mechanisms. The support plate 500 may be configured to have a length consistent with the length of the elastic baffle 200 and the sealing baffle 100. Multiple force-applying mechanisms are arranged at intervals along the length direction of the sealing baffle 100. The two support rods 300 of each force-applying mechanism are respectively hinged to the opposite sides of the two support plates 500. The force-applying screw 400 of each force-applying mechanism passes through and is screwed onto the sealing baffle 100.

[0060] In one implementation, refer to the appendix. Figure 2 and attached Figure 3 As shown, the grouting assembly includes two grouting pipes 600 and a grout outlet pipe 700. The first ends of the two grouting pipes 600 are connected to and pass through the sealing baffle 100, and the second ends extend downward toward the sealing baffle 100. The two grouting pipes 600 are arranged at intervals along the length of the sealing baffle 100. The grout outlet pipe 700 extends along the length of the sealing baffle 100 and its two ends are respectively connected to the second ends of the two grouting pipes 600. The pipe wall of the grout outlet pipe 700 is provided with a plurality of grout outlet through holes arranged at intervals along the axial direction.

[0061] In this embodiment, the grouting pipe 600 passes through the first end of the sealing baffle 100 and is connected to the grouting nozzle of the grouting device. The waterproof grout enters the outlet pipe 700 through the two grouting pipes 600 respectively, and is output into the trench through the outlet hole on the outlet pipe 700. In this way, the trench can be filled with waterproof grout quickly and relatively evenly.

[0062] Specifically, the inner wall of the port at the first end of the grouting pipe 600 is formed with internal threads to facilitate threaded connection with the grouting nozzle. In addition, the section of the grouting pipe 600 near the first end may be equipped with a check valve assembly consisting of a spring and a top ball to effectively prevent the waterproof coating from flowing back.

[0063] Specifically, the grouting pipe 600 can be a rigid pipe, and the grout outlet pipe 700 can be a flexible pipe.

[0064] In practical applications, the distance between the grout outlet pipe 700 and the sealing baffle 100 is determined according to the depth of the trench. The grout outlet pipe 700 needs to be arranged close to the bottom wall of the trench. Preferably, the distance between the grout outlet pipe 700 and the bottom wall of the trench is less than or equal to 10mm, so that the waterproof grout can be gradually filled from the bottom to the top of the trench.

[0065] In one implementation, refer to the appendix. Figure 2 and attached Figure 3 As shown, the grouting assembly also includes two connectors 800. The first ends of the two connectors 800 are detachably nested with the second ends of the two grouting pipes 600, and the second ends extend towards each other and are nested with the two ends of the grout outlet pipe 700, respectively.

[0066] Understandably, the grouting pipe 600 and the grout outlet pipe 700 are perpendicular to each other. The connection between the grouting pipe 600 and the grout outlet pipe 700 can be achieved through the connector 800, without the need to bend the grouting pipe 600 and the grout outlet pipe 700, which improves the convenience of grouting component manufacturing.

[0067] Specifically, the outer wall of the second end of the grouting pipe 600 is formed with an external thread, and the first end of the connector 800 is formed with an internal thread. The first end of the connector 800 is detachably nested with the second end of the grouting pipe 600 by means of a threaded connection.

[0068] Specifically, a rubber sealing ring can be provided between the second end of the slurry outlet pipe 700 and the connector 800 to ensure the sealing of the connection between the slurry outlet pipe 700 and the connector 800.

[0069] In one implementation, refer to the appendix. Figure 4 As shown, the sealing grouting device also includes a roll clamping plate 900, which is detachably and securely connected to the top surface of the sealing baffle 100.

[0070] In practical applications, the exposed waterproof membrane of the maintenance area a can be covered on the top surface of the sealing baffle 100. Then, by fastening the membrane clamping plate 900 to the top surface of the sealing baffle 100, the exposed waterproof membrane is pressed tightly onto the top surface of the sealing baffle 100 through the membrane clamping plate 900. This arrangement allows the water-retaining wall formed by the waterproof slurry to be connected with the exposed waterproof membrane, further ensuring that the maintenance area a is not disturbed by external water.

[0071] Specifically, the top surface of the sealing baffle 100 has multiple threaded holes facing upwards, and the roll clamping plate 900 has connecting through holes corresponding to the multiple threaded holes. Bolts are used to pass through the connecting through holes and threadedly connect to the threaded holes to fasten the roll clamping plate 900 to the top surface of the sealing baffle 100.

[0072] In one embodiment, the sealing baffle 100 includes a plurality of baffle units that are detachably spliced ​​sequentially along the length direction, and the elastic baffle 200 includes a plurality of baffle units that are detachably spliced ​​sequentially along the length direction of the sealing baffle 100. This arrangement allows the number of baffle units and baffle units to be selected according to the length of the trench in practical applications, so that the lengths of the sealing baffle 100 and the elastic baffle 200 can be adapted to the length of the trench, improving the versatility of the sealing grouting device.

[0073] In this embodiment, the baffle units can be detachably connected via rubber couplings. Specifically, each end of the rubber coupling has a receiving groove that matches the end shape of the baffle unit, and the ends of two adjacent baffle units are respectively inserted into the receiving grooves at both ends of the rubber coupling. Understandably, the rubber couplings can effectively connect the baffle units and also provide a good seal and water-blocking effect at the connection point of two adjacent baffle units.

[0074] In this embodiment, the baffle units can be detachably spliced ​​by snap-fit ​​connection. Specifically, in two adjacent baffle units, one end of one baffle unit has a groove and the other end of the baffle unit has a protrusion. The two adjacent baffle units can be snap-fit ​​connected by the protrusion being inserted into the groove.

[0075] In practical applications, the sealing and grouting device can be composed of multiple modules. Each module includes a baffle unit, two baffle plate units connected to the two sides of the baffle unit in the width direction, a set of fastening components connected to the baffle unit, and a set of grouting components connected to the baffle unit.

[0076] In one embodiment, the sealing grouting device includes a resilient sealing gasket that is fitted onto the end of the sealing baffle 100 in the longitudinal direction.

[0077] In practical applications, the sealing grouting device can be arranged in a ring shape to independently enclose the maintenance area of ​​the roof, or it can be used together with the parapet wall of the roof to enclose the maintenance area of ​​the roof. When the sealing grouting device and the parapet wall of the roof jointly enclose the maintenance area of ​​the roof, the elastic sealing gasket can be used as a seal between the end of the sealing baffle 100 and the parapet wall to seal the gap between the end of the sealing baffle 100 and the parapet wall.

[0078] Specifically, the sealing gasket has a receiving groove that matches the shape of the end of the sealing baffle 100, and the end of the sealing baffle 100 is inserted into the receiving groove of the sealing baffle 100.

[0079] Specifically, the sealing gasket can be a rubber gasket.

[0080] The present invention also provides a method for partitioning a roof maintenance area.

[0081] In one implementation, refer to the appendix. Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 5 As shown, the roof maintenance area partitioning method uses the aforementioned sealing and grouting device and includes:

[0082] Step S1. Cut a groove at the junction of the maintenance area a and the non-maintenance area b on the roof to form a groove that extends to the surface of the reinforced concrete layer of the roof at the junction. Specifically, the width of the groove is generally 50mm.

[0083] Step S2. The sealing baffle 100 of the sealing grouting device is sealed in the trench opening, so that the two elastic baffles 200 of the sealing grouting device are pressed and fastened to the two side walls of the trench opening respectively, so that the grouting outlet end of the grouting component of the sealing grouting device extends to the bottom of the trench. Specifically, the two elastic baffles 200 are pressed and fastened to the two sides of the section of the concrete protective layer of the roof, and the distance between the grouting outlet end of the grouting component and the bottom wall of the trench (i.e. the surface of the reinforced concrete layer) is less than or equal to 10mm.

[0084] Step S3. Fill the trench with waterproof grout through the grouting component and allow the waterproof grout to solidify to form a water-retaining wall. Specifically, the waterproof grout is gradually filled from the bottom to the top of the trench. During the upward filling process, the air and water in the trench are squeezed out into the gaps on both sides of the trench under the pressure of the waterproof grout. As the waterproof grout continues to be injected, it will be squeezed into the gaps on both sides of the trench, filling the water flow paths on both sides of the trench. After the waterproof grout solidifies and hardens, a water-retaining wall is formed to separate the maintenance area a and the non-maintenance area b.

[0085] In this embodiment, the waterproof grout can specifically be a polyurea grout.

[0086] In practical applications, if the maintenance area a is located in the middle of the roof, a groove is cut around the maintenance area a to form a rectangular trench to enclose the maintenance area a. The sealing grouting device installed in the trench is also rectangular. If the maintenance area a is close to the parapet wall of the roof, the maintenance area a is enclosed by the trench and the parapet wall (that is, the parapet wall serves as part of the boundary of the maintenance area a).

[0087] In one implementation, refer to the appendix. Figure 4 As shown, the sealing grouting device also includes a roll clamping plate 900, which is detachably and securely connected to the top surface of the sealing baffle 100.

[0088] Following step S3, the roof maintenance area partitioning method further includes:

[0089] Step S4. The exposed waterproof membrane in repair area a is inserted between the top surfaces of the membrane clamping plate 900 and the sealing baffle 100, and the membrane clamping plate 900 presses the exposed waterproof membrane firmly against the top surface of the sealing baffle 100. This arrangement allows the water-retaining wall formed after the waterproof slurry has solidified to connect with the exposed waterproof membrane in repair area a through the sealing baffle 100 and the membrane clamping plate 900, thereby further improving the waterproof protection effect on repair area a.

[0090] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0091] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0092] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A method for partitioning a roof maintenance area, characterized in that, The roof maintenance area partitioning method employs a sealing and grouting device, which includes: Sealing baffle (100); Two elastic baffles (200), one end of each elastic baffle (200) is connected to the two sides of the sealing baffle (100) in the width direction, and the other end of each elastic baffle (200) extends downward toward the sealing baffle (100); Fastening components are used to apply opposing counterforces to the two elastic baffles (200), respectively; The grouting assembly has a grouting inlet end and a grouting outlet end, the grouting inlet end being connected to and passing through the sealing baffle (100), and the grouting outlet end extending downward toward the sealing baffle (100); The sealing baffle (100) has connecting arms extending downward on both sides in the width direction, and one end of each of the two elastic baffles (200) is snapped into the two connecting arms. The method for partitioning the roof maintenance area includes: Step S1. Cut a groove at the junction of the maintenance area (a) and the non-maintenance area (b) of the roof to form a groove at the junction extending to the surface of the reinforced concrete layer of the roof. Step S2. The sealing baffle (100) of the sealing grouting device is sealed in the groove opening, so that the two elastic baffles (200) of the sealing grouting device are pressed and fastened to the two side walls of the groove opening, so that the grouting outlet end of the grouting component of the sealing grouting device extends to the bottom of the groove. Step S3. Fill the trench with waterproof grout through the grouting assembly and allow the waterproof grout to solidify to form a water-retaining wall.

2. The roof maintenance area partitioning method according to claim 1, characterized in that, The fastening assembly includes: Two struts (300), the first ends of the two struts (300) are hinged to each other, and the second ends abut against the opposing sides of the two elastic baffles (200); A force-applying screw (400) passes through and is screwed onto the sealing baffle (100), with one end abutting against the hinge of the two support rods (300).

3. The roof maintenance area partitioning method according to claim 2, characterized in that, The fastening assembly also includes two support plates (500), which are respectively disposed on the opposing sides of the two elastic baffles (200), and the second ends of the two struts (300) are respectively hinged to the opposing sides of the two support plates (500).

4. The method for partitioning a roof maintenance area according to claim 1, characterized in that, The grouting assembly includes: Two grouting pipes (600), the first ends of the two grouting pipes (600) are connected to and pass through the sealing baffle (100), the second ends extend toward the bottom of the sealing baffle (100), and the two grouting pipes (600) are arranged at intervals along the length of the sealing baffle (100); The grout outlet pipe (700) extends along the length of the sealing baffle (100) and its two ends are respectively connected to the second ends of the two grouting pipes (600). The grout outlet pipe (700) has multiple grout outlet holes arranged axially at intervals on its pipe wall.

5. The roof maintenance area partitioning method according to claim 4, characterized in that, The grouting assembly also includes two connectors (800), the first ends of which are detachably nested to the second ends of the two grouting pipes (600), and the second ends extend toward each other and are nested to the two ends of the grout outlet pipe (700).

6. The method for partitioning a roof maintenance area according to claim 1, characterized in that, The sealing grouting device also includes a roll clamping plate (900), which is detachably and securely connected to the top surface of the sealing baffle (100).

7. The method for partitioning a roof maintenance area according to claim 1, characterized in that, The sealing baffle (100) includes a plurality of baffle units that are detachably spliced ​​together in sequence along the length direction, and the elastic baffle (200) includes a plurality of baffle units that are detachably spliced ​​together in sequence along the length direction of the sealing baffle (100).

8. The method for partitioning a roof maintenance area according to claim 1, characterized in that, The sealing grouting device includes an elastic sealing gasket that is fitted onto the end of the sealing baffle (100) in the longitudinal direction.

9. The method for partitioning a roof maintenance area according to claim 1, characterized in that, The sealing and grouting device also includes a roll clamping plate (900), which is detachably and securely connected to the top surface of the sealing baffle (100); Following step S3, the roof maintenance area partitioning method further includes: Step S4. Extend the exposed waterproof membrane of the repair area (a) between the top surface of the membrane clamping plate (900) and the sealing baffle (100), and press the exposed waterproof membrane onto the top surface of the sealing baffle (100) by the membrane clamping plate (900).

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