Rapidly applied anti-cracking fiberglass web device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI YUNYING NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
The existing technology for applying crack-resistant fiberglass mesh to gypsum hollow core slabs is cumbersome and inefficient. Construction workers need to climb to heights to operate, and the process of pressing in the adhesive plaster and smoothing it out is complicated.
A device for quickly applying crack-resistant fiberglass mesh was designed, including rods, rolling shafts, rolling rollers, clamping mechanisms, guiding mechanisms, and support components. The rolling rollers and guiding rollers on the rods achieve straight stretching and uniform force on the fiberglass mesh, the clamping mechanism fixes the fiberglass mesh, and the support components ensure that the fiberglass mesh is applied flat.
It enables single-person operation of fiberglass mesh, saving time and effort, increasing efficiency, avoiding the risks of workers climbing to heights, and ensuring that the fiberglass mesh is laid flat in the groove of the gypsum hollow strip board, with uniform stress and simple construction.
Smart Images

Figure CN224391501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, and in particular to a device for quickly applying crack-resistant fiberglass mesh. Background Technology
[0002] Gypsum hollow core panels are lightweight boards made primarily of building gypsum, with added cement or fly ash, and small amounts of reinforcing fibers (such as glass fiber, paper fiber, etc.). Expanded perlite and other admixtures may also be added. The process involves mixing the slurry, casting, core removal, and drying. Gypsum hollow core panels offer advantages such as high efficiency in factory prefabrication and on-site assembly, lightweight yet high strength, moisture resistance, waterproofing, mildew resistance, low shrinkage, crack-free walls, fire resistance, heat insulation, and noise reduction.
[0003] The technical specifications for gypsum hollow core panels comply with the national building materials industry standard JC / T829-2010 "Gypsum Hollow Core Panels". Typical dimensions are 2400-3000mm in length, 600mm in width, and 90-200mm in thickness. The panels feature tenons and mortises along the edges, with the edges slightly lower than the panel surface to create pre-drilled joint grooves. Crack-resistant fiberglass mesh can be applied, and adhesive plaster can be used to fill and smooth the joints, ensuring a strong bond and preventing cracking, forming a continuous wall. The joint groove width is 6cm. For gypsum hollow core panel construction and assembly, first apply adhesive plaster to the tenons of the panels. Then, vertically insert the panels into the top positioning U-shaped slots. Use pry bars and wedges to adjust adjacent panels to ensure a tight fit between the tenons and mortises. Distribute the applied adhesive plaster evenly in the joint grooves. Press a pre-cut 4.5 or 5cm wide crack-resistant fiberglass mesh into the joint grooves from top to bottom, simultaneously smoothing the adhesive plaster to match the gypsum board surface. During the application of crack-resistant fiberglass mesh, construction workers need to climb scaffolding or use ladders, and workers at the bottom also need to help to tighten the crack-resistant fiberglass mesh. The process is quite complicated and not very convenient. At the same time, the process of pressing in the bonding plaster and smoothing it out is complicated and inefficient due to the limited width of the joint groove. Utility Model Content
[0004] To overcome at least one of the defects described in the prior art, this utility model provides a device for quickly applying crack-resistant fiberglass mesh, thereby solving problems such as complex construction and low efficiency.
[0005] The technical solution adopted by this utility model to solve its problem is:
[0006] A device for quickly applying crack-resistant fiberglass mesh includes a rod with a mounting frame at one end. A rolling shaft is mounted on the mounting frame, and a pressure roller is rotatably connected to the rolling shaft. Both ends of the rolling shaft pass through the mounting frame and are movably connected to a pressure frame on the other side. The pressure frame has a clamping mechanism. A guiding mechanism is provided on the rod, and a support assembly is provided on the rod. The guiding mechanism is located between the support assembly and the mounting frame. The support assembly has a rotating rod for mounting a complete roll of crack-resistant fiberglass mesh. The rotating rod is rotatably connected to the support assembly, and a limiting component for limiting the movement of the complete roll of crack-resistant fiberglass mesh is provided inside the rotating rod.
[0007] Furthermore, the support assembly includes two brackets, two support plates, two springs, and two clips. The two brackets are fixedly mounted on the rod and are symmetrically arranged. The two support plates are respectively fixedly mounted on the brackets. The two support plates have grooves on opposite sides. The clips are slidably connected in the grooves. A spring is provided in the groove, with one end of the spring abutting against the bottom of the groove and the other end abutting against the clip. A limiting edge is provided at the opening of the groove to prevent the clip from popping out. A rotating hole is provided in the middle of the clip. Turntables are provided at both ends of the rotating rod, and the turntables are rotatably connected in the rotating hole.
[0008] Furthermore, the limiting assembly includes an elastic element and two screws. The rotating rod is hollow inside, and has two symmetrical connecting platforms inside. Each of the two connecting platforms has a threaded hole, and the screws are threaded into the two threaded holes. A limiting platform is located in the middle of the rotating rod, and a notch is provided at both ends of the limiting platform. One end of the screw is located in the notch, and the other end passes through the rotating platform at the end of the rotating rod to the outside. The limiting platform has four arranged figure-eight grooves. The lower ends of the figure-eight grooves pass through the limiting platform and are respectively connected to the notches at both ends of the limiting platform. The upper end of the middle part of the figure-eight groove passes through the limiting platform to the outside. The elastic element is movably connected in the figure-eight groove. The lower ends of the elastic element are respectively located in the notches at both ends of the limiting platform and abut against the end of the screw. The middle part of the elastic element protrudes from the middle of the figure-eight groove to the outside of the rotating rod.
[0009] Furthermore, the screw passes through the turntable and has a handle on its outer end for easy rotation.
[0010] Furthermore, the guiding mechanism includes a first guide wheel, a second guide wheel, a first guide frame, and a second guide frame. One end of each of the first and second guide frames is fixedly connected to a rod, and the other end is rotatably connected to the first and second guide wheels, respectively. The first and second guide wheels are used to guide the crack-resistant fiberglass mesh.
[0011] Furthermore, the first guide wheel is lower than the second guide wheel.
[0012] Furthermore, one end of the pressure frame is rotatably connected to a rolling shaft located on both sides of the mounting frame. The end of the rolling shaft is provided with a stop plate, and a torsion spring is sleeved on the rolling shaft. The torsion spring is located between the pressure frame and the stop plate. Positioning platforms are provided on both sides of the mounting frame, and positioning holes are provided on the positioning platforms. Positioning rods are provided on both sides of the pressure frame. One end of the torsion spring is located in the positioning hole, and the other end abuts against the positioning rod, so that the pressure frame can rotate downward automatically.
[0013] Furthermore, a clamping mechanism is provided at the end opposite to the connection between the pressure frame and the rolling shaft. The clamping mechanism includes a fixed flap and a movable flap. Both the fixed flap and the movable flap are made of galvanized metal with magnetic strips. The fixed flap is fixedly installed on the end opposite to the connection between the pressure frame and the rolling shaft. The movable flap is connected to the fixed flap via a hinge, allowing the movable flap to be opened outwards.
[0014] Furthermore, the rod is a telescopic rod.
[0015] In summary, the rapid application device for crack-resistant fiberglass mesh provided by this utility model has the following technical effects:
[0016] This device keeps the fiberglass mesh in a straight, stretched state, ensuring that it can be flatly applied to the grooves of the gypsum hollow slab and that the force on the fiberglass mesh is relatively even from top to bottom. It can be operated by a single person, saving time and effort, and is highly efficient, while avoiding the risks associated with workers climbing to heights. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the guiding mechanism structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating rod of this utility model;
[0021] Figure 4 A schematic diagram of the screw with a handle according to this utility model;
[0022] Figure 5 For the present utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0023] In the diagram: 1. Rod; 11. Mounting bracket; 111. Rolling shaft; 112. Rolling roller; 113. Block; 114. Torsion spring; 115. Positioning platform; 116. Positioning hole; 2. Pressing frame; 21. Positioning rod; 3. Clamping mechanism; 31. Fixed petal; 32. Movable petal; 4. Guide mechanism; 41. First guide wheel; 42. Second guide wheel; 43. First guide frame; 44. Second guide frame; 5. Support assembly; 51. Bracket; 52. Support plate; 521. Groove; 522. Limiting edge; 53. Spring; 54. Clip; 541. Rotary hole; 6. Rotating rod; 61. Turntable; 62. Connecting platform; 621. Threaded hole; 63. Limiting platform; 631. Abutment groove; 632. V-groove; 7. Limiting assembly; 71. Elastic element; 72. Screw; 721. Handle. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0027] Example:
[0028] refer to Figure 1 and Figure 5 As shown, a device for quickly applying crack-resistant fiberglass mesh includes a rod 1, with a mounting frame 11 at one end of the rod 1. A rolling shaft 111 is mounted on the mounting frame 11, and a rolling roller 112 is rotatably connected to the rolling shaft 111. The roller 112 is made of smooth rubber or galvanized metal. The rolling roller 112 is 5 cm wide and can reduce the adhesion of the adhesive plaster to its surface.
[0029] Among them, pole 1 is a telescopic pole made of galvanized metal. Its fully extended length can reach 3 meters. It has a hollow structure to reduce the overall weight.
[0030] The end of the rod 1 is equipped with anti-slip rubber with raised particles, which can prevent slipping and sweating, provide a firm grip, and make it easy to use.
[0031] refer to Figure 1 and Figure 5 As shown, the two ends of the rolling shaft 111 pass through the mounting frame 11 to the other side and are rotatably connected to one end of the pressure frame 2. The end of the rolling shaft 111 is provided with a stop plate 113. A torsion spring 114 is sleeved on the rolling shaft 111. The torsion spring 114 is located between the pressure frame 2 and the stop plate 113. Positioning plates 115 are provided on both sides of the mounting frame 11. Positioning holes 116 are provided on the positioning plates 115. Positioning rods 21 are provided on both sides of the pressure frame 2. One end of the torsion spring 114 is located in the positioning hole 116, and the other end abuts against the positioning rod 21. The two ends of the torsion spring 114 can make the end of the pressure frame 2 rotate downward automatically, thereby further smoothing and compacting the crack-resistant glass fiber mesh.
[0032] refer to Figure 1 and Figure 5 As shown, a fixed flap 31 is fixedly installed on the end of the connection between the pressure frame 2 and the rolling shaft 111. A movable flap 32 is connected to the fixed flap 31 by a hinge, so that the movable flap 32 can be opened outward. Both the fixed flap 31 and the movable flap 32 are galvanized metal with magnetic strips. Their length is 8cm, which is longer than the rolling roller 112. The magnetic attraction between the fixed flap 31 and the movable flap 32 can clamp and fix the end of the crack-resistant glass fiber mesh.
[0033] refer to Figures 1-4As shown, two symmetrically arranged brackets 51 are fixedly installed on the rod 1. Each bracket 51 is fixedly installed with a support plate 52. The two support plates 52 have grooves 521 on opposite sides. A locking piece 54 is slidably connected in the groove 521. A spring 53 is provided in the groove 521. One end of the spring 53 abuts against the bottom of the groove 521, and the other end abuts against the locking piece 54. A limiting edge 522 is provided at the opening of the groove 521 to prevent the locking piece 54 from popping out. A rotating hole 541 is provided in the middle of the locking piece 54. A rotating rod 6 is provided between the two support plates 52. A turntable 61 is provided at both ends of the rotating rod 6. The turntable 61 is rotatably connected in the rotating hole 541, so that the rotating rod 6 can rotate on the locking piece 54. By pressing the locking piece 54, the locking piece 54 can be moved into the groove 521, so that the rotating rod 6 can be quickly disassembled and installed.
[0034] refer to Figures 1-4 As shown, the rotating rod 6 is hollow inside, and has two symmetrical connecting platforms 62. Each connecting platform 62 has a threaded hole 621, and a screw 72 is threaded into each of the two threaded holes 621. A limiting platform 63 is located in the middle of the rotating rod 6, and a notch 631 is located at both ends of the limiting platform 63. One end of the screw 72 is located in the notch 631, and the other end passes through the rotating platform 61 at the end of the rotating rod 6 to the outside. The limiting platform 63 has four arranged figure-eight grooves 632. Both ends of the figure-eight grooves 632 pass through the limiting platform 63 and are connected to the notches 631 at both ends of the limiting platform 63. 2. The upper end of the middle part extends through the limiting platform 63 to the outside. An elastic element 71 is movably connected in the figure-eight groove 632. The two ends of the lower side of the elastic element 71 are located in the abutment grooves 631 at both ends of the limiting platform 63 and abut against the ends of the screw 72. The middle part of the elastic element 71 protrudes from the middle of the figure-eight groove 632 to the outside of the rotating rod 6. The entire roll of crack-resistant glass fiber mesh is mounted on the rotating rod 6. By rotating the two screws 72, the ends of the elastic element 71 are squeezed, causing the middle part of the elastic element 71 to protrude upward, thereby fixing the entire roll of crack-resistant glass fiber mesh. Since the rotating rod 6 can rotate on the clamp 54, the entire roll of crack-resistant glass fiber mesh can rotate.
[0035] It should be noted that the elastic element 71 is located at both ends of the groove 631 and is parallel to the screw 72. This prevents the elastic element 71 from popping out of the middle of the groove 632. Furthermore, the two sides of the elastic element 71 have elastic forces in opposite directions, respectively towards the two sides of the elastic element 71. Therefore, when the screw 72 gradually moves away from the groove 631, the elastic element 71 will automatically retract slightly inward according to its own elastic force, making it easier to disassemble the entire roll of crack-resistant fiberglass mesh.
[0036] refer to Figures 1-4 As shown, the screw 72 passes through the turntable 61 and has a handle 721 on one of its outer ends to facilitate the rotation of the rotating rod 6. It should be noted that the handle 721 is slightly higher than the turntable 61 to avoid the handle 721 being too long and affecting the disassembly of the rotating rod 6.
[0037] refer to Figure 2 As shown, a first guide frame 43 and a second guide frame 44 are fixedly installed on the rod 1. A first guide wheel 41 and a second guide wheel 42 are rotatably connected to the first guide frame 43 and the second guide frame 44, respectively. The width of the first guide wheel 41 and the second guide wheel 42 is 6 cm. The first guide wheel 41 and the second guide wheel 42 are used to guide the crack-resistant fiberglass mesh to ensure that the crack-resistant fiberglass mesh is guided correctly.
[0038] refer to Figure 2 As shown, the first guide wheel 41 is lower than the second guide wheel 42. The crack-resistant glass fiber mesh passes over the upper side of the first guide wheel 41, passes between the first and second guide wheels 42, and passes under the second guide wheel 42. During this process, the crack-resistant glass fiber mesh has a certain resistance when it is stretched, which can keep the crack-resistant glass fiber mesh in a taut state. And through the guidance of the first guide wheel 41 and the second guide wheel 42, the crack-resistant glass fiber mesh is released straight during the stretching process.
[0039] It should be noted that the width of a roll of crack-resistant fiberglass mesh is 4.5 cm or 5 cm. In practice, you can directly purchase a roll of crack-resistant fiberglass mesh of the corresponding size without cutting it to size.
[0040] The working principle of this utility model is as follows:
[0041] S1. First, nail the hangers into the top of the joint groove before assembling the strips;
[0042] S2. Press one side of the clip 54 while holding the rotating rod 6. Press the other side of the clip 54 through the rotating rod 6 to disengage the turntable 61 at one end of the rotating rod 6 from the rotating hole 541 of the clip 54 on one side, thus completing the disassembly of the rotating rod 6.
[0043] S3. Mount the entire roll of crack-resistant fiberglass mesh onto the rotating rod 6. Rotate the screw 72 through the handles 721 at both ends to move the screw 72 inward. Its end presses against both ends of the elastic element 71, and the middle of the elastic element 71 protrudes outward, thereby fixing the entire roll of crack-resistant fiberglass mesh onto the rotating rod 6.
[0044] S4. Hold the rotating rod 6 and / or the whole roll of crack-resistant fiberglass mesh, insert the turntable 61 at one end of the rotating rod 6 into the turning hole 541 of the clamp 54 on one side, and press the clamp 54 on one side with the rotating rod 6, and press the clamp 54 on the other side, so that the turntable 61 at the other end of the rotating rod 6 is inserted into the turning hole 541 of the clamp 54 on the other side. The spring force of the spring 53 makes the clamps 54 on both sides return to their original positions, thus completing the installation of the whole roll of crack-resistant fiberglass mesh and the rotating rod 6.
[0045] S5. Pull the movable end of the crack-resistant glass fiber mesh of the whole roll of crack-resistant glass fiber mesh so that the crack-resistant glass fiber mesh passes over the first guide wheel 41, passes between the first guide wheel and the second guide wheel 42, passes under the second guide wheel 42, passes under the rolling wheel 112, and finally is placed between the fixed petal 31 and the movable petal 32 for clamping.
[0046] S6. The construction personnel lift the roller 112 of this device to the top of the joint groove of the assembled strip. Using the hooks pre-nailed to the gypsum hollow strip, they hook the mesh of the crack-resistant fiberglass mesh and press down on the roller 112 while pulling it down. Under the action of the downward pulling force, the crack-resistant fiberglass mesh on the fixed petal 31 and the movable petal 32 will detach. At the same time, because the hooks are hooked on the crack-resistant fiberglass mesh, the entire roll of crack-resistant fiberglass mesh will rotate and release the crack-resistant fiberglass as it is pulled down from top to bottom. The crack-resistant fiberglass mesh is pressed straight into the adhesive plaster by hand pressure through the roller 112 until it reaches the bottom of the joint groove of the gypsum hollow strip board. The crack-resistant fiberglass mesh is then cut. After the crack-resistant fiberglass mesh is separated from the fixed petal 31 and the movable petal 32, the pressure frame 2 moves downward by the action of the torsion spring 114, maintaining downward pressure. As a result, the pressure frame 2 is pressed tightly against the joint of the gypsum hollow strip board and the extruded adhesive plaster is scraped flat, ensuring that the joint groove is full of plaster and flat with the surface of the gypsum hollow strip board.
[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A device for rapidly applying crack-resistant fiberglass mesh, comprising rods (1), characterized in that: The rod (1) has a mounting frame (11) at one end, a rolling shaft (111) on the mounting frame (11), a rolling roller (112) rotatably connected to the rolling shaft (111), and a pressure frame (2) movably connected to both ends of the rolling shaft (111) through the mounting frame (11) to the other side. The pressure frame (2) has a clamping mechanism (3), a guiding mechanism (4) on the rod (1), and a support assembly (5) on the rod (1). The guiding mechanism (4) is located between the support assembly (5) and the mounting frame (11). The support assembly (5) has a rotating rod (6) for installing the whole roll of crack-resistant glass fiber mesh. The rotating rod (6) is rotatably connected to the support assembly (5). The rotating rod (6) has a limiting assembly (7) for limiting the whole roll of crack-resistant glass fiber mesh.
2. The device for rapidly applying crack-resistant fiberglass mesh according to claim 1, characterized in that: The support assembly (5) includes two brackets (51), two support plates (52), two springs (53), and two clips (54). The two brackets (51) are fixedly installed on the rod (1) and are arranged symmetrically. The two support plates (52) are respectively fixedly installed on the brackets (51). The two support plates (52) are provided with grooves (521) on opposite sides. The clips (54) are slidably connected in the grooves (521). The grooves (521) are provided with springs (53). One end of the spring (53) abuts against the bottom of the groove (521), and the other end abuts against the clips (54). The opening of the groove (521) is provided with a limiting edge (522) to prevent the clips (54) from popping out. The middle of the clips (54) is provided with a rotating hole (541). The rotating rod (6) is provided with a turntable (61) at both ends. The turntable (61) is rotatably connected in the rotating hole (541).
3. The device for rapidly applying crack-resistant fiberglass mesh according to claim 2, characterized in that: The limiting component (7) includes an elastic element (71) and two screws (72). The rotating rod (6) is hollow inside, and two symmetrical connecting platforms (62) are provided inside the rotating rod (6). Each of the two connecting platforms (62) is provided with a threaded hole (621), and the screws (72) are threaded into each of the two threaded holes (621). A limiting platform (63) is provided in the middle inside the rotating rod (6). Both ends of the limiting platform (63) are provided with abutment grooves (631). One end of the screw (72) is located in the abutment groove (631), and the other end passes through the rotating platform (61) on the end of the rotating rod (6) to the outside. The limiting platform (63) is provided with four arranged figure-eight grooves (632). The two ends of the lower side of the figure-eight grooves (632) penetrate the limiting platform (63) and are connected to the abutment grooves (631) at both ends of the limiting platform (63). The upper end of the middle part of the figure-eight grooves (632) penetrates the limiting platform (63) to the outside. The elastic element (71) is movably connected in the figure-eight grooves (632). The two ends of the lower side of the elastic element (71) are located in the abutment grooves (631) at both ends of the limiting platform (63) and abut against the end of the screw (72). The middle part of the elastic element (71) protrudes from the middle of the figure-eight grooves (632) to the outside of the rotating rod (6).
4. The device for rapidly applying crack-resistant fiberglass mesh according to claim 3, characterized in that: The screw (72) passes through the turntable (61) and has a handle (721) on one of its outer ends to facilitate the rotation of the screw (6).
5. The device for rapidly applying crack-resistant fiberglass mesh according to claim 1, characterized in that: The guiding mechanism (4) includes a first guide wheel (41), a second guide wheel (42), a first guide frame (43), and a second guide frame (44). One end of the first guide frame (43) and the second guide frame (44) are fixedly connected to the rod (1), and the other end is rotatably connected to the first guide wheel (41) and the second guide wheel (42), respectively. The first guide wheel (41) and the second guide wheel (42) are used to guide the crack-resistant glass fiber mesh.
6. The device for rapidly applying crack-resistant fiberglass mesh according to claim 5, characterized in that: The first guide wheel (41) is lower than the second guide wheel (42).
7. The device for rapidly applying crack-resistant fiberglass mesh according to claim 1, characterized in that: One end of the pressure frame (2) is rotatably connected to the rolling shaft (111) located on both sides of the mounting frame (11). The end of the rolling shaft (111) is provided with a stop (113). A torsion spring (114) is sleeved on the rolling shaft (111). The torsion spring (114) is located between the pressure frame (2) and the stop (113). Both sides of the mounting frame (11) are provided with positioning platforms (115). The positioning platforms (115) are provided with positioning holes (116). Both sides of the pressure frame (2) are provided with positioning rods (21). One end of the torsion spring (114) is located in the positioning hole (116), and the other end abuts against the positioning rod (21), so that the pressure frame (2) can rotate downward automatically.
8. The device for rapidly applying crack-resistant fiberglass mesh according to claim 7, characterized in that: The pressure frame (2) is provided with a clamping mechanism (3) at the end opposite to the connection end of the rolling shaft (111). The clamping mechanism (3) includes a fixed petal (31) and a movable petal (32). Both the fixed petal (31) and the movable petal (32) are made of galvanized magnetic metal. The fixed petal (31) is fixedly installed on the end opposite to the connection end of the pressure frame (2) and the rolling shaft (111). The movable petal (32) is connected to the fixed petal (31) by a hinge, so that the movable petal (32) can be opened outward.
9. The device for rapidly applying crack-resistant fiberglass mesh according to claim 1, characterized in that: The rod (1) is a telescopic rod.