Flexible net hanging device

Abstract

The invention relates to the technical field of construction equipment, and provides a flexible net hanging device which comprises a walking mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism, a lifting mechanism and a lifting mechanism, and the walking mechanism is provided with a mounting position and used for mounting a rolled flexible net and enabling the flexible net to uncoil along with walking of the walking mechanism; the lapping and unfolding mechanism is connected to the walking mechanism and comprises an unfolding structure, a pressing structure and a supporting structure connected to the unfolding area; the unfolding structure is used for unfolding the folding edges of the flexible net along the folding marks; the pressing structure is used for guiding the folded edge into the spreading area; the supporting structure is used for supporting the folded edge; the walking mechanism is provided with a connecting position used for being connected with the automatic bolt drilling machine and enabling the output end of the automatic bolt drilling machine to be located in the extension range of the spreading area. By means of the arrangement, construction such as storage, arrangement, unfolding, tensioning and fixing of the flexible net can be achieved, work such as on-site manual positioning and manual fastener installation of constructors is omitted, labor intensity and operation risks are further reduced, and large-scale and high-efficiency engineering construction requirements can be better met.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and in particular to a flexible netting installation device. Background Technology

[0002] In fields such as mining, tunnel excavation, and underground engineering construction, in order to ensure construction safety and project stability, it is necessary to support the roof and walls of roadways and tunnels. Flexible mesh laying is one of the commonly used support and sealing methods.

[0003] Some netting installation equipment has been disclosed in related fields. For example, patents or patent applications with application numbers 202410589914X, 2024200980812, and 202410589914X all mention netting installation equipment. However, careful research reveals that these devices are essentially limited to mechanized netting installation, only capable of mechanized installation of flexible netting, i.e., completing the initial arrangement and unfolding of the netting / curtain. The crucial fastening process between the netting / curtain and the wall or ceiling still requires manual operation. Construction workers must manually position and install fasteners on-site to complete the fixing, which is not only labor-intensive and risky but also leads to a break in the construction process, making it impossible to form a continuous operation chain. Therefore, this type of equipment is essentially semi-mechanized equipment and cannot meet the needs of large-scale, high-efficiency engineering construction.

[0004] In view of the above problems, how to further reduce labor intensity and operational risks, and meet the needs of large-scale and high-efficiency engineering construction, has become an important technical problem that urgently needs to be solved. Summary of the Invention

[0005] This invention provides a flexible netting installation device to address the shortcomings of existing netting installation devices, such as low efficiency and high labor intensity and operational risks for construction workers. It helps to further reduce labor intensity and operational risks and meet the needs of large-scale, high-efficiency engineering construction.

[0006] This invention provides a flexible netting installation device, comprising: The traveling mechanism is provided with a mounting position for mounting the wound flexible net and for unwinding the flexible net as the traveling mechanism travels. A netting unfolding mechanism is connected to the traveling mechanism; the netting unfolding mechanism includes an unfolding structure, a pressing structure, and a support structure connected to the unfolding area; the unfolding structure is used to unfold the folded edge of the flexible netting along the crease; the pressing structure is used to press the unfolded folded edge and guide the folded edge into the unfolding area; the support structure is used to provide support for the folded edge in the unfolding area; The walking mechanism is also provided with a connection position, which is used to connect an automatic bolt drill and make its output end located within the extension range of the spreading area.

[0007] According to a flexible net hanging device provided by the present invention, a pressing seam is formed between the pressing structure and the unfolding structure, one side of the pressing seam is used for the folded edge of the flexible net to pass through, and the unfolding area is formed on the other side of the pressing seam.

[0008] According to the present invention, a flexible net hanging device is provided, wherein the clamping structure includes: A clamping arm is supported above the walking mechanism; one end of the clamping arm is connected to the walking mechanism, and the other end extends to the side of the unfolding structure and is gap-fitted with the side of the unfolding structure to form the clamping seam; A first elastic clamping element, connected to the clamping arm, is used to provide a pre-tightening force to the folded edge close to the unfolded structure.

[0009] According to the flexible netting installation device provided by the present invention, the first elastic clamping member includes: The first swinging member has one end hinged to the clamping arm and the other end is the clamping end, which can swing towards or away from the unfolding structure. A first elastic element, connected between the first swinging element and the clamping arm, is used to provide a preload force to the clamping end of the first swinging element so that it swings close to the unfolding structure.

[0010] According to the present invention, a flexible net hanging device is provided, wherein the unfolding structure includes: An unfolding plate is supported above the walking mechanism, and its side is fitted with the pressing structure to form the pressing seam. One side of the unfolding plate is set as the unfolding surface and defines the spreading area. A guide body is disposed at one end of the unfolding plate near the mounting position; the side of the guide body facing the same direction as the unfolding surface is designated as the guide surface, and in the forward direction of the walking mechanism, the guide surface gradually tilts closer to the unfolding surface.

[0011] According to the present invention, a flexible netting mounting device is provided, wherein the supporting structure includes: A second elastic clamping member is connected to the unfolded surface and at least one is provided thereon. The second elastic clamping member is used to provide a pre-tightening force away from the unfolded surface for the folded edge.

[0012] According to the flexible netting installation device provided by the present invention, the second elastic clamping member includes: The second swing member has one end hinged to the unfolded surface and the other end is a pressing end that can swing close to or away from the unfolded surface. The second elastic element, connected between the second swinging element and the unfolding plate, is used to provide a pre-tightening force to the pressing end of the second swinging element so that it swings away from the unfolding surface.

[0013] According to a flexible net hanging device provided by the present invention, the pressing end of the first swing member is connected to a first guide wheel.

[0014] According to a flexible net hanging device provided by the present invention, the pressing end of the second swing member is connected to a second guide wheel.

[0015] According to the present invention, a flexible net hanging device is provided, wherein a lifting support mechanism is connected to the walking mechanism; One end of the support mechanism is connected to the walking mechanism, and the other end is connected to a cantilever. The cantilever extends radially along the support mechanism to above the walking mechanism, and the clamping structure is connected to the cantilever.

[0016] According to the present invention, a flexible net hanging device is provided, wherein the clamping structure is hinged to the cantilever and can swing closer to or further away from the unfolding structure to adjust the width of the clamping seam.

[0017] According to a flexible netting installation device provided by the present invention, the supporting mechanism is hinged to the traveling mechanism, allowing the supporting mechanism to pitch and swing closer to or further away from the traveling mechanism; a pitch adjustment component is connected between the supporting mechanism and the traveling mechanism for adjusting the pitch angle of the supporting mechanism; and / or, The connection point is disposed on the unfolding plate, and the system further includes a lifting mechanism for driving the unfolding plate to rise and fall; and / or, A first rotating component is connected to the unfolding plate, and the connection position is formed at the output end of the first rotating component; and / or, It also includes a second rotating component for driving the unfolding plate to rotate.

[0018] The flexible netting installation device provided by this invention installs a rolled-up flexible netting on the mounting position of a traveling mechanism. A portion of the flexible netting is then pre-unrolled, with the folded edge of the unrolled portion laid along the unfolding structure and passing through the pressing structure into the spreading area. A supporting structure provides support for the folded edge within the spreading area, pressing it firmly against the wall or ceiling. An automatic bolt drill is installed at the connection position of the traveling mechanism, using the automatic bolt drill to fix the pre-unrolled flexible netting's folded edge to the wall or ceiling, forming a pre-fixed structure. The traveling mechanism then travels along a preset path. Since the folded edge is pre-fixed to the wall or ceiling, as the traveling mechanism moves, the flexible netting continues to unroll. The unfolding structure unfolds the folded edge along the creases, and the pressing structure continuously presses the folded edge flat. The flattened folded edge is then guided into the spreading area, where the supporting structure presses it firmly against the wall or ceiling. Because the output end of the automatic bolt drill is located within the extension range of the spreading area, the continuously entering folded edge can be fixed until construction is complete.

[0019] Compared to related technologies, this method can realize the storage, arrangement, unfolding, tensioning and fixing of flexible nets in one go, eliminating the need for construction personnel to manually position and install fasteners on site, thereby further reducing labor intensity and operational risks, and better meeting the needs of large-scale and high-efficiency engineering construction. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is one of the structural schematic diagrams of the flexible netting installation device provided in the embodiments of the present invention.

[0022] Figure 2 This is the second structural schematic diagram of the flexible net hanging device provided in the embodiment of the present invention.

[0023] Figure 3 This is one of the schematic diagrams showing the cooperation between the flexible net hanging device and the wound flexible net provided in the embodiment of the present invention.

[0024] Figure 4 This is the second schematic diagram of the flexible net hanging device and the winding flexible net provided in the embodiment of the present invention.

[0025] Figure 5 This is a partial enlarged view of the area where the unfolding structure and the clamping structure cooperate, as provided in the embodiment of the present invention.

[0026] Figure 6 This is a structural schematic diagram of the automatic bolt drilling machine provided in an embodiment of the present invention.

[0027] Figure 7 This is a structural schematic diagram of the self-tapping expansion bolt provided in an embodiment of the present invention.

[0028] Figure 8 This is one of the schematic diagrams of the self-tapping expansion bolt and the material strip provided in the embodiment of the present invention.

[0029] Figure 9 This is the second schematic diagram of the self-tapping expansion bolt and the material strip provided in the embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of the drilling rig body provided in an embodiment of the present invention.

[0031] Figure 11 This is one of the structural schematic diagrams of the guide rail provided in the embodiments of the present invention.

[0032] Figure 12 This is provided by the embodiments of the present invention. Figure 6 A magnified view of part A in the middle.

[0033] Figure 13 This is the second schematic diagram of the guide rail provided in the embodiment of the present invention.

[0034] Figure 14 This is provided by the embodiments of the present invention. Figure 8 A magnified view of part B in the middle section.

[0035] Figure 15 This is a schematic diagram of the toothed belt provided in an embodiment of the present invention.

[0036] Figure 16 This is a schematic diagram of the pressing component provided in an embodiment of the present invention.

[0037] Figure 17 This is a schematic diagram of the docking mechanism and the self-tapping expansion bolt provided in the embodiment of the present invention.

[0038] Figure 18 This is a cross-sectional view of the inner rod of the docking mechanism and the bolt body of the self-tapping expansion bolt in the decoupled state provided in the embodiment of the present invention.

[0039] Figure 19 This is a cross-sectional view of the inner rod of the docking mechanism and the bolt body of the self-tapping expansion bolt in the coupled state provided in the embodiment of the present invention.

[0040] Figure 20 This is an exploded view of the docking mechanism provided in an embodiment of the present invention.

[0041] Figure label: 1.1 Walking mechanism; 1.10 Mounting position; 1.11 Chassis; 1.12 Walking structure; 1.2 Deployment structure; 1.21 Deployment plate; 1.22 Guide body; 1.3 Clamping structure; 1.31 Clamping arm; 1.32 First elastic clamping member; 1.321 First swinging member; 1.322 First guide wheel; 1.4 Support structure; 1.41 Second elastic clamping member; 1.411 Second swinging member; 1.412 Second guide wheel; 1.5 Support mechanism; 1.5 1. Telescopic structure; 1.511. Support arm; 1.512. Sliding arm; 1.52. Driving component; 1.6. Cantilever; 1.7. Lifting mechanism; 1.8. First rotating component; 1.9. Second rotating component; 2. Flexible mesh; 2.1. Folded edge; 3. Automatic bolt drilling machine; 3.1. Drilling machine body; 3.2. Progressive feeding mechanism; 3.21. Drive gear; 3.22. Pressing component; 3.221. Guide through hole; 3.222. First clearance hole; 3.223. Second clearance hole; 3.224. End plate; 3 3.225 Side plate; 3.23 Elastic reset component; 3.24 Transmission component; 3.241 Transmission rack; 3.242 Transmission gear; 3.3 Guide rail; 3.31 Through groove; 3.32 Main body section; 3.33 Connecting section; 3.34 Connection section; 3.35 Limiting ring; 3.4 Linear drive component; 3.41 First drive component; 3.42 Second drive component; 3.5 Base; 4. Docking mechanism; 4.1 Outer sleeve; 4.11 Fitting hole; 4.12 Second shoulder; 4.13 Second stop; 4.2 Inner rod; 4.21 First connecting part; 4.22 Second connecting part; 4.23 First shoulder; 4.24 First stop; 4.3 Coupling structure; 4.31 First keyway; 4.32 Second keyway; 4.4 Elastomer; 5. Strip; 5.1 Mounting hole; 5.2 Toothed strip; 6. Self-tapping expansion bolt; 6.1 Bolt body; 6.11 Spiral groove; 6.2 Nut; 6.3 Washer; 6.4 Expansion tube; 6.41 Notch; 6.5 Drill bit. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0043] To better understand the flexible netting installation device provided in the embodiments of the present invention, its application background is first introduced. In the fields of mining, tunnel excavation, and underground engineering construction, in order to ensure construction safety and engineering stability, it is necessary to support the roof and walls of roadways and tunnels. Flexible netting is one of the commonly used support and sealing methods.

[0044] Some netting installation equipment has been disclosed in related fields. For example, patents or patent applications with application numbers 202410589914X, 2024200980812, and 202410589914X all mention netting installation equipment. However, careful research reveals that these devices are essentially limited to mechanized netting installation, only capable of mechanized installation of flexible netting, i.e., completing the initial arrangement and unfolding of the netting / curtain. The crucial fastening process between the netting / curtain and the wall or ceiling still requires manual operation. Construction workers must manually position and install fasteners on-site to complete the fixing, which is not only labor-intensive and risky but also leads to a break in the construction process, making it impossible to form a continuous operation chain. Therefore, this type of equipment is essentially semi-mechanized equipment and cannot meet the needs of large-scale, high-efficiency engineering construction.

[0045] In view of the above problems, embodiments of the present invention provide a flexible netting installation device, which is beneficial to further reduce labor intensity and operational risks, and meet the needs of large-scale and high-efficiency engineering construction.

[0046] The following is combined Figures 1 to 20 The flexible netting mounting device of the present invention is described.

[0047] Reference Figures 1 to 4 A flexible netting installation device includes a traveling mechanism 1.1, a netting unfolding mechanism, and a connecting position. The traveling mechanism 1.1 has an installation position 1.10 for installing a rolled-up flexible netting 2, allowing the flexible netting 2 to unroll as the traveling mechanism 1.1 moves. The netting unfolding mechanism is connected to the traveling mechanism 1.1 and includes an unfolding structure 1.2, a pressing structure 1.3, and a support structure 1.4 connected to the unfolding area. The unfolding structure 1.2 unfolds the folded edge 2.1 of the flexible netting 2 along the fold. The pressing structure 1.3 presses the unfolded folded edge 2.1 and guides it into the unfolding area. The support structure 1.4 provides support for the folded edge 2.1 in the unfolding area. The traveling mechanism 1.1 also has a connecting position for connecting an automatic bolt drill 3 and ensuring its output section is within the extension range of the unfolding area.

[0048] In practical applications, the rolled-up flexible net 2 is installed on the mounting position 1.10 of the walking mechanism 1.1. Then, a portion of the flexible net 2 is pre-unrolled, so that the folded edge 2.1 of the unrolled portion is laid along the unfolding structure 1.2 and passes through the pressing structure 1.3 into the spreading area. The supporting structure 1.4 can provide support for the folded edge 2.1 in the spreading area, so that the folded edge 2.1 is pressed tightly against the wall or ceiling. The automatic bolt drill 3 is installed on the connection position of the walking mechanism 1.1, and the automatic bolt drill 3 is used to fix the folded edge 2.1 of the pre-unrolled flexible net 2 to the wall or ceiling, forming a pre-fixed structure. Subsequently, the traveling mechanism 1.1 travels along the preset path. Since the folded edge 2.1 is pre-fixed to the wall or ceiling, as the traveling mechanism 1.1 travels, the flexible net 2 continues to unroll. The unfolding structure 1.2 unfolds the folded edge 2.1 along the fold lines, and the pressing structure 1.3 continuously presses the folded edge 2.1 to make it flat. Then, the flattened folded edge 2.1 is guided into the spreading area, and the supporting structure 1.4 presses the flattened folded edge 2.1 to the wall or ceiling. Since the output end of the automatic bolt drill 3 is located within the extension range of the spreading area, the folded edge 2.1 that continues to enter the spreading area can be fixed until the construction is completed.

[0049] Compared to related technologies, this method can realize the storage, arrangement, unfolding, tensioning and fixing of flexible netting 2 in one go, eliminating the need for construction personnel to manually position and install fasteners on site, thereby further reducing labor intensity and operational risks, and better meeting the needs of large-scale and high-efficiency engineering construction.

[0050] It should be noted that the flexible netting 2 is a factory-prefabricated material. It is folded on both the top and bottom sides and then rolled into a roll. The folded portion, known as the folded edge 2.1, facilitates fixing to the wall or ceiling. The roll has a circular tube at its center, which mates with the installation position 1.10 of the flexible netting hanging device. Unrolling is achieved by rotating around its own axis. As a commonly used and commercially available construction material, its material, dimensions, and more specific structure can be found in existing technologies, and will not be elaborated upon in this embodiment.

[0051] In one example of the present invention, the walking mechanism 1.1 includes a chassis 1.11 and a walking structure 1.12; wherein, the chassis 1.11 constitutes the bottom support of the entire device, providing a connection base for various components; the walking structure 1.12 is connected to the bottom of the chassis 1.11 and is used to drive the entire device to move along a preset path. It is understood that, depending on different application scenarios, the walking structure 1.12 can be configured as a wheel structure to adapt to relatively flat road surfaces, or as a tracked structure to adapt to complex road surfaces, or a combination of a wheel structure and a tracked structure; no specific limitations are made in this embodiment of the present invention.

[0052] In one example of the present invention, a pressing seam is formed between the pressing structure 1.3 and the unfolding structure 1.2, one side of the pressing seam is used for the folded edge 2.1 of the flexible net to pass through, and the unfolding area is formed on the other side of the pressing seam.

[0053] With this configuration, the compression seam formed between the compression structure 1.3 and the unfolding structure 1.2 allows the folded edge 2.1 to unfold along the crease during the unwinding process of the flexible mesh 2, and then the unfolded folded edge 2.1 is guided into the compression area to facilitate its flat and adhered to the wall or ceiling.

[0054] It should be further noted that, depending on the construction scenario, the spreading area can face upwards, thus enabling the flexible net 2 to be fixed on the ceiling; or the spreading area can face to the side, thus enabling the flexible net 2 to be fixed on a vertical wall. Of course, for ease of explanation and understanding, this embodiment uses the example of the spreading area facing upwards.

[0055] In one example of the present invention, the clamping structure 1.3 includes a clamping arm 1.31 and a first elastic clamping member 1.32; wherein, the clamping arm 1.31 is supported above the walking mechanism 1.1, one end of the clamping arm 1.31 is connected to the walking mechanism 1.1, and the other end extends to the side of the unfolding structure 1.2 and is clearance-fitted with the side of the unfolding structure 1.2, thereby forming the above-mentioned clamping seam; the first elastic clamping member 1.32 is connected to the clamping sidewall and is used to provide a pre-tightening force close to the unfolding structure 1.2 for the folded edge 2.1.

[0056] With this configuration, after the folded edge 2.1 passes through the pressing seam, the first elastic pressing member 1.32 can provide a continuous pre-tightening force to the folded edge 2.1 in the direction of the second elastic pressing member 1.41, so that when the flexible net 2 is unrolled, the folded edge 2.1 can be smoothly introduced into the spreading area along the fold line, and the folded edge 2.1 can remain stable in the spreading area, which facilitates the subsequent support and fixation of the folded edge 2.1.

[0057] Understandably, the first elastic clamping element 1.32 can be configured with different structural forms depending on different actual needs.

[0058] In detail, refer to Figure 5The first elastic clamping member 1.32 includes a first swinging member 1.321 and a first elastic member; wherein, one end of the first swinging member 1.321 is hinged to the clamping arm 1.31, and the other end is formed as a clamping end and can swing towards or away from the unfolding structure 1.2; the first elastic member is connected between the first swinging member 1.321 and the clamping arm 1.31, and is used to provide a pre-tightening force to the clamping end of the first swinging member 1.321 to swing towards the unfolding structure 1.2. With this configuration, under the action of the pre-tightening force of the first elastic member, the first swinging member 1.321 swings towards the unfolding structure 1.2, thereby providing a continuous pre-tightening force for the folded edge 2.1 passing through the clamping seam.

[0059] In detail, the first elastic element can be configured in different structural forms according to actual needs, including but not limited to compression springs, torsion springs, and elastic sheets. In this embodiment, the first elastic element is configured as a torsion spring and connected between the first swinging member 1.321 and the clamping arm 1.31.

[0060] Furthermore, the first oscillating element 1.321 can be set to one, or more than two according to actual needs, to provide a more stable clamping force along the direction of the clamping seam.

[0061] In this embodiment, two first swing members 1.321 are provided. The two first swing members 1.321 are arranged along the length of the pressing seam, and the pressing ends of the two first swing members 1.321 are arranged facing away from each other. In this way, the effective range of the two first swing members 1.321 can cover the pressing seam as much as possible and improve the uniformity of the pressing force.

[0062] Furthermore, the pressing end of the first swing member 1.321 is rotatably connected to the first guide wheel 1.322. The first guide wheel 1.322 can improve the smoothness of the movement of the folding edge 2.1, reduce jamming, and prevent the pressing end from damaging the flexible net 2.

[0063] In one example of the present invention, the unfolding structure 1.2 includes an unfolding plate 1.21 and a guide body 1.22; wherein, the unfolding plate 1.21 is supported above the walking mechanism 1.1, and its side is fitted with the pressing structure 1.3 to form the aforementioned pressing seam, one surface of the unfolding plate 1.21 is an unfolding surface and defines the spreading area, and the support structure 1.4 is connected to the unfolding surface of the unfolding plate 1.21; the guide body 1.22 is disposed at one end of the unfolding plate 1.21 near the mounting position 1.10, and the side of the guide body 1.22 facing the same direction as the unfolding surface is designated as the guide surface, and in the forward direction of the walking mechanism 1.1, the guide surface gradually tilts closer to the unfolding surface.

[0064] In detail, the unfolding surface is the upper surface of the unfolding plate 1.21, which defines the unfolding area facing upward, and the guiding surface is the upper surface of the guide body 1.22.

[0065] With this configuration, under the pre-tightening force of the first elastic clamping member 1.32, the folded edge 2.1 is pushed towards the unfolding plate 1.21. The side of the unfolding plate 1.21 is located at the crease, thus providing constraint and guidance for the folded edge 2.1. This not only presses the crease to keep the position of the folded edge 2.1 stable, but also provides constraint for the folded edge 2.1. At the same time, as the traveling mechanism 1.1 moves, the lower side of the guide surface will move along the crease to ensure that the folded edge 2.1 unfolds along the crease. Simultaneously, the folded edge 2.1 moves along the guide surface to the spreading area. With the cooperation of the unfolding plate 1.21 and the guide body 1.22, it can be ensured that the folded edge 2.1 unfolds along the crease and is stably guided into the spreading area.

[0066] In one example of the present invention, the support structure 1.4 includes a second elastic clamping member 1.41, which is connected to the upper surface of the unfolding plate 1.21 and is used to provide a pre-tightening force away from the unfolding plate 1.21 for the folded edge 2.1.

[0067] With this configuration, the support structure 1.4 can provide a pre-tightening force to the folded edge 2.1 away from the unfolded plate 1.21, thereby elastically pressing the folded edge 2.1 against the wall or ceiling, ensuring that the folded edge 2.1 remains in close contact with the wall or ceiling during the movement of the traveling mechanism 1.1, thus improving the construction quality.

[0068] In detail, the second elastic clamping member 1.41 includes a second swing member 1.411 and a second elastic member; wherein, one end of the second swing member 1.411 is hinged to the unfolding plate 1.21, and the other end is formed as a clamping end and can swing towards or away from the unfolding plate 1.21; the second elastic member is connected between the second swing member 1.411 and the unfolding plate 1.21, and is used to provide a preload force for the clamping end of the second swing member 1.411 to swing away from the unfolding plate 1.21. With this configuration, under the action of the preload force of the second elastic member, the second swing member 1.411 has a structural swing away from the unfolding plate 1.21, thereby pushing the folded edge 2.1 away from the unfolding plate 1.21 and pressing it against the wall or ceiling.

[0069] In detail, the second elastic element can be configured in different structural forms according to actual needs, including but not limited to compression springs, torsion springs, and elastic sheets. In this embodiment, the second elastic element is configured as a torsion spring and connected between the second swinging member 1.411 and the unfolding plate 1.21.

[0070] Furthermore, the second oscillating element 1.411 can be set to one, or more than two according to actual needs, to provide a more stable clamping force for the folded edge 2.1 along the extension direction of the clamping seam.

[0071] In this embodiment, two second swing members 1.411 are provided. The two second swing members 1.411 are arranged along the length of the pressing seam, and the pressing ends of the two second swing members 1.411 are arranged facing away from each other. In this way, the effective range of the two second swing members 1.411 can cover the pressing seam as much as possible and improve the uniformity of the pressing force.

[0072] Furthermore, there can be one or more second elastic clamping members 1.41. When there are two or more second elastic clamping members 1.41, each part of the folded edge 2.1 can be clamped, which makes it convenient to fix different positions of the folded edge 2.1, and can also adapt to folded edges 2.1 of different widths.

[0073] In this embodiment, two second elastic clamping members 1.41 are provided, and the two second elastic clamping members 1.41 are arranged at intervals along the width direction of the clamping seam.

[0074] Furthermore, the pressing end of the second swing member 1.411 is rotatably connected to the second guide wheel 1.412. The second guide wheel 1.412 can improve the smoothness of the movement of the folding edge 2.1, reduce jamming, and prevent the pressing end from damaging the flexible net 2.

[0075] In a further example of the present invention, reference is made to Figures 1 to 4 A support mechanism 1.5 is connected to the walking mechanism 1.1; one end of the support mechanism 1.5 is connected to the walking mechanism 1.1, and the other end is connected to a cantilever 1.6. The cantilever 1.6 extends radially along the support mechanism 1.5 to above the walking mechanism 1.1; the clamping structure 1.3 is connected to the cantilever 1.6.

[0076] Furthermore, the clamping structure 1.3 is hinged to the cantilever 1.6 and can swing closer to or further away from the unfolding structure 1.2. This configuration allows for adjustment of the width of the clamping gap. For example, swinging the clamping structure 1.3 away from the unfolding mechanism widens the clamping gap, facilitating the passage of the folded edge 2.1 of the flexible net 2. Conversely, swinging the clamping structure 1.3 closer to the unfolding mechanism narrows the clamping gap, thereby clamping the folded edge 2.1.

[0077] In detail, the clamping arm 1.31 of the clamping structure 1.3 is hinged to the cantilever 1.6. Positioning components such as positioning pins can be set between the clamping arm 1.31 and the cantilever 1.6 to position and limit the swing of the cantilever 1.6 after it is reset, so as to ensure that the clamping seam can stably clamp the folded edge 2.1.

[0078] In one example of the present invention, the support mechanism 1.5 includes a telescopic structure 1.51 and a driving member 1.52; wherein, the first end of the telescopic structure 1.51 is connected to the walking mechanism 1.1, and the second end can extend or retract towards or away from the walking mechanism 1.1; the cantilever 1.6 is connected to the second section of the telescopic structure 1.51; the driving member 1.52 is used to drive the telescopic structure 1.51 to extend or retract.

[0079] With this configuration, the distance between the cantilever 1.6 and the traveling mechanism 1.1 can be adjusted via the telescopic structure 1.51. When installing the wound flexible net 2, the telescopic structure 1.51 drives the cantilever 1.6 to move away from the traveling mechanism 1.1, increasing the space above the mounting position 1.10. This provides sufficient space to place the wound flexible net 2 onto the mounting position 1.10 (turntable) of the traveling mechanism 1.1. Then, the telescopic structure 1.51 drives the cantilever 1.6 to move closer to the traveling mechanism 1.1, resetting the cantilever 1.6. This simple and convenient method enables the installation of the flexible net 2.

[0080] In detail, the telescopic structure 1.51 includes a support arm 1.511 and a sliding arm 1.512; one end of the support arm 1.511 is fixedly connected to the chassis of the walking mechanism 1.1, and the sliding arm 1.512 is slidably connected to the support arm 1.511 and the end away from the support arm 1.511 constitutes the second end mentioned above.

[0081] Furthermore, the specific sliding connection methods of the support arm 1.511 and the sliding arm 1.512 include, but are not limited to, sleeve-rod fitting or tenon-groove fitting. In this embodiment, the sliding arm 1.512 is inserted into the support arm 1.511.

[0082] Furthermore, the drive component 1.52 can be any form of linear drive element, including cylinders, hydraulic cylinders, and electric actuators. The specific choice can be made according to actual needs, and no specific restrictions are imposed in this embodiment of the invention.

[0083] In one example of the present invention, the support mechanism 1.5 is hinged to the walking mechanism 1.1, so that the support mechanism 1.5 can move closer to or further away from the walking mechanism 1.1 to make pitch swings; it also includes a pitch adjustment member for adjusting the pitch angle of the support mechanism 1.5.

[0084] With this setup, the size of the space above the mounting position 1.10 can be adjusted by changing the pitch angle of the support mechanism 1.5, thereby further facilitating the installation of the rolled-up flexible net 2 within the installation space.

[0085] Furthermore, the pitch adjustment component can be any type of linear drive element, including cylinders, hydraulic cylinders, and electric actuators. One end of the pitch adjustment component is connected to the chassis 1.11 of the traveling mechanism 1.1, and the other end is hinged to the support arm 1.511. The pitch angle of the support mechanism 1.5 is adjusted by the extension and retraction of the pitch adjustment component.

[0086] In one example of the present invention, the flexible net hanging device further includes a lifting mechanism 1.7, which is connected to the unfolding structure 1.2.

[0087] With this setup, the height of the clamping structure 1.3 can be adjusted using the retractable support mechanism 1.5, and the height of the unfolding structure 1.2 can be adjusted using the lifting mechanism 1.7. By combining the two, the overall height of the device can be adjusted to adapt to the varying tunnel heights.

[0088] In one example of the present invention, the connection position is located at the bottom of the unfolding plate 1.21, so that while the lifting mechanism 1.7 drives the pressing structure 1.3 to rise and fall, the height of the automatic bolt drill 3 can be adjusted simultaneously.

[0089] Furthermore, the flexible netting installation device also includes a first rotating component 1.8 connected to the bottom of the unfolding plate 1.21, with a connection point formed at the output end of the first rotating component 1.8. This configuration allows the first rotating component 1.8 to drive the automatic bolt drill 3 to rotate, thereby adjusting the position of the automatic drill's output end and fixing the folded edge 2.1 at different positions. Simultaneously, it ensures that the device can be used to install netting on both the left and right sides.

[0090] Furthermore, the flexible netting installation device also includes a second rotating component 1.9 connected to the bottom of the unfolding structure 1.2. With this configuration, the second rotating component 1.9 can drive the unfolding mechanism to rotate, thereby adjusting the installation position of the flexible netting 2.

[0091] It is understandable that the specific structural forms of the first rotating component 1.8 and the second rotating component 1.9 can be set according to actual needs, including but not limited to servo turntables.

[0092] The structure of the automatic bolt drilling machine 3 will be described below with reference to the accompanying drawings.

[0093] Reference Figure 6The automatic bolt drilling machine 3 includes a drilling body 3.1, a progressive feeding mechanism 3.2, and a linear drive 3.4. The drilling body 3.1 has an output section and a feeding position corresponding to the position of the output section in a first direction. The progressive feeding mechanism 3.2 drives the material belt 5 to move intermittently along a preset trajectory. The material belt 5 stores multiple self-tapping expansion bolts 6, which are spaced apart along the length of the material belt 5. The preset trajectory passes through the feeding position, allowing the multiple self-tapping expansion bolts 6 to enter the feeding position one by one. The output section and the self-tapping expansion bolts 6 at the feeding position can be coupled relatively close to each other in the first direction. The output end of the linear drive 3.4 is fixedly connected to the drilling body 3.1 and drives the drilling body 3.1 to move along the first direction, which is perpendicular to the spreading area.

[0094] With this configuration, the progressive feeding mechanism 3.2 drives the conveyor belt 5 to move intermittently along a preset trajectory, allowing multiple self-tapping expansion bolts 6 spaced apart on the conveyor belt 5 to enter the feeding position one by one. After the self-tapping expansion bolts 6 enter the feeding position, the linear drive 3.4 drives the drill body 3.1 to move in the first direction, causing the self-tapping expansion bolts 6 to abut against the folded edge 2.1 of the flexible mesh 2. Under the further drive of the linear drive 3.4, the output part and the feeding position are relatively close to each other in the first direction for coupling. Then, the drill body 3.1 drives the self-tapping expansion bolts 6 to perform drilling and installation work. After the previous self-tapping expansion bolt 6 is installed, the progressive feeding mechanism 3.2 drives the conveyor belt 5 to move, causing the next self-tapping expansion bolt 6 to enter the feeding position for drilling and installation. This process is repeated continuously, with drilling and progressive feeding cycles, to achieve continuous operation and thus complete the construction such as fixing the flexible mesh 2 in one go.

[0095] It should be noted that the strip 5 with self-tapping expansion bolts 6 can be processed in the factory and then transported to the construction site as a construction consumable to be used in conjunction with the automatic bolt drilling machine 3, instead of requiring construction personnel to assemble it themselves on the construction site.

[0096] The structure of the self-tapping expansion bolt 6 and its matching method with the strip 5 will be introduced first, so as to have a more intuitive and in-depth understanding of the specific structure and working process of the automatic bolt drilling machine 3.

[0097] Reference Figure 7The self-tapping expansion bolt 6 includes a bolt body 6.1, a nut 6.2, a washer 6.3, an expansion tube 6.4, and a drill bit 6.5. The bolt body 6.1 passes through the expansion tube 6.4, and the head end of the bolt body 6.1 gradually thickens in the direction away from the expansion tube 6.4. The drill bit 6.5 is connected to the end of the head end. The expansion tube 6.4 has a notch 6.41 extending toward the head end of the bolt body 6.1. When the expansion tube 6.4 is compressed, it expands along the notch 6.41 under the action of the head end. The hexagonal nut 6.2 is connected to the tail end of the bolt body 6.1, and the washer 6.3 is disposed between the nut 6.2 and the expansion tube 6.4. With this setup, during drilling, the tail end of the bolt body 6.1 is coupled with the output part of the drill body 3.1, and the drill bit 6.5 at the head of the bolt body 6.1 abuts against the wall. After the drill is started, the drill bit 6.5 drills a hole, and the expansion tube 6.4 enters the hole. Then, the nut 6.2 is tightened. The nut 6.2 squeezes the expansion tube 6.4 through the washer 6.3, causing the expansion tube 6.4 to expand and complete the installation of the self-tapping expansion bolt 6.

[0098] Furthermore, the bolt body 6.1 is provided with a spiral groove 6.11, which extends from the part of the bolt body 6.1 located inside the expansion tube 6.4 to the head end, and is used to smoothly discharge rock fragments during drilling.

[0099] Furthermore, referring to Figure 8 and Figure 9 The strip 5 can be made of flexible materials, including plastic, and has multiple mounting holes 5.1 spaced apart along its length. The bolt body 6.1 passes through the mounting holes 5.1, and the strip 5 is clamped between the nut 6.2 and the washer 6.3, thereby realizing the connection and engagement between the self-tapping expansion bolt 6 and the strip 5.

[0100] It should be noted that a breakable line can be formed around the mounting hole 5.1 on the material strip 5 by segmented cutting, so as to facilitate the separation of the self-tapping expansion bolt 6 from the material strip 5 during or after installation.

[0101] Reference Figure 10 The drilling rig body 3.1 serves as the driving part of the automatic bolt drilling rig 3, and is mainly used to drive the self-tapping expansion bolts 6 to rotate to achieve drilling. Its specific structure and power form can be selected and configured according to different actual working conditions. No specific restrictions are imposed in this embodiment of the invention.

[0102] For example, the drill body 3.1 can be configured to be electrically driven, such as an electric motor or a combination of an electric motor and a reducer. In some specific fields, such as coal mines where explosion-proof requirements are high, the drill body 3.1 can also be configured to be hydraulically driven, such as a hydraulic motor or a combination of a hydraulic motor and a reducer.

[0103] Reference Figures 11 to 14A guide rail 3.3 is fixedly connected to the drill body 3.1. The guide rail 3.3 is arranged along a preset trajectory, and at least the portion of the guide rail 3.3 at the loading position has a through groove 3.31 for the tail end of the self-tapping expansion bolt 6 to pass through and connect with the output part of the drill body 3.1. This arrangement allows the guide rail 3.3 to provide support and guidance for the movement of the material belt 5, ensuring stable movement of the material belt 5 along the preset trajectory, while the through groove 3.31 allows the tail end of the self-tapping expansion bolt 6 to pass through for connection with the output part of the drill body 3.1.

[0104] Furthermore, the through groove 3.31 extends along the length of the guide rail 3.3 and covers the entire guide rail 3.3. With this configuration, when the material strip 5 moves along the guide rail 3.3 under the drive of the progressive feeding mechanism 3.2, the through groove 3.31 can provide clearance for the tail end of the self-tapping expansion bolt 6, ensuring that the material strip 5 can be stably supported on the guide rail 3.3.

[0105] In detail, the guide rail 3.3 includes two main sections 3.32 and one connecting section 3.33. The two main sections 3.32 are located on both sides of the drilling rig body 3.1, and in the first direction, the two main sections 3.32 gradually extend towards the loading position at an incline. The connecting section 3.33 is located at the loading position and its two ends are connected to the two main sections 3.32, making the guide rail 3.3 have an overall "V" shape. In this way, a preset trajectory is formed that spans both sides of the drilling rig body 3.1 and passes through the loading position.

[0106] To facilitate the connection and fixation of the guide rail 3.3 and the drilling rig body 3.1, in one example of the present invention, the guide rail 3.3 further includes a connecting section 3.34. One end of the connecting section 3.34 is connected to the end of the main body section 3.32 away from the connecting section 3.33, and the other end extends toward the side of the drilling rig body 3.1 and is fixedly connected to the side of the drilling rig body 3.1. The specific connection method between the connecting section 3.34 and the drilling rig body 3.1 includes, but is not limited to, welding or connection by bolts or other connecting components.

[0107] It is understood that the various parts of the guide rail 3.3 can be integrally formed to ensure the integrity of the structure, or they can be welded together, or they can be connected by bolts or rivets. No specific restrictions are made in this embodiment of the invention.

[0108] It should be noted here that, since the guide rail 3.3 is fixedly connected to the drill body 3.1, and the material strip 5 is supported on the guide rail 3.3, in order to make the output part and the tail end of the self-tapping expansion bolt 6 relatively close for coupling in the first direction, there are several feasible methods: In a feasible example, the width of the through groove 3.31 can be slightly larger than the size of the washer 6.3 at the tail end of the self-tapping expansion bolt 6, so that when the self-tapping expansion bolt 6 is pressed against the wall and subjected to reverse pressure, the self-tapping expansion bolt 6 can pass through the through groove 3.31 and move its tail end a certain distance closer to the output part in the first direction, thereby achieving docking and coupling between the tail end and the output part.

[0109] In another feasible example, the portion of the guide rail 3.3 located at the loading position can be configured to have a certain elastic modulus, so that this portion can undergo elastic deformation in the first direction, moving closer to or further away from the output part. When the self-tapping expansion bolt 6 abuts against the wall and is subjected to reverse pressure, under the pressure of the washer 6.3 at the tail end of the self-tapping expansion bolt 6, the portion of the guide rail 3.3 located at the loading position is forced to move closer to the output part and undergo elastic deformation, thereby achieving docking coupling between the tail end and the output part.

[0110] Of course, the above are just examples. Other methods that can connect the output part with the tail end of the self-tapping expansion bolt 6 are also applicable. They will not be listed one by one in this embodiment of the invention.

[0111] In this embodiment, the width of the through groove 3.31 is slightly larger than the size of the washer 6.3 at the tail end of the self-tapping expansion bolt 6, so that when the self-tapping expansion bolt 6 abuts against the wall and is subjected to reverse pressure, the self-tapping expansion bolt 6 can pass through the through groove 3.31 and move its tail end a certain distance closer to the output part in the first direction, thereby realizing the docking and coupling between the tail end and the output part.

[0112] Furthermore, when the material strip 5 is provided with a breakable wire that surrounds the mounting hole 5.1, the diameter of the breakable wire can be larger than the diameter of the washer 6.3. This allows the self-tapping expansion bolt 6 to pass through the through groove 3.31 and move its tail end a certain distance closer to the output part in the first direction when it is pressed against the wall and subjected to reverse pressure. This achieves docking and coupling between the tail end and the output part, and at the same time, it achieves separation from the material strip 5.

[0113] It should be noted that the figure shown is for illustrative purposes only and does not represent the actual size of the product. Since the material strip 5 is made of soft plastic with a certain elastic modulus, it can quickly recover its deformation after being deformed by pressure. Moreover, since the deformation is small, it is only necessary to meet the docking requirements of the output part and the tail of the self-tapping expansion bolt 6. Actual use has proven that it will not affect the normal operation of the material strip 5.

[0114] To achieve intermittent driving of the feed belt 5 by the progressive feeding mechanism 3.2, in one example of the present invention, referring to... Figures 12 to 14The progressive feeding mechanism 3.2 includes a drive gear 3.21 and a drive assembly. The drive gear 3.21 is rotatably connected to the guide rail 3.3. A toothed belt 5.2 extending along its length is formed on the side of the feeding belt 5 facing the drive gear 3.21, and the toothed belt 5.2 meshes with the drive gear 3.21. The drive assembly is connected to the drive gear 3.21, allowing the drive gear 3.21 to rotate intermittently under the drive of the drive assembly. This configuration causes the drive gear 3.21 to rotate intermittently under the drive of the drive assembly, thereby driving the feeding belt 5 to move intermittently along a preset trajectory, achieving progressive feeding.

[0115] To elaborate further, refer to Figure 14 and Figure 15 Two toothed belts 5.2 are provided, and the two toothed belts 5.2 are arranged symmetrically about the wide center line of the material belt 5. Two drive gears 3.21 are provided and mesh with the two toothed belts 5.2 respectively. With this arrangement, when the two drive gears 3.21 mesh synchronously, they will apply a pair of equal and symmetrical driving forces to the material belt 5, which will counteract the lateral eccentric force that may be generated by driving on one side, and ensure the stability and smoothness of the movement of the material belt 5.

[0116] Furthermore, a U-shaped limiting ring 3.35 is fixedly connected to the guide rail 3.3 at the position corresponding to the drive gear 3.21. The material belt 5 passes through the space enclosed by the limiting ring 3.35 and the guide rail 3.3. With this arrangement, the limiting ring 3.35 can constrain the material belt 5, ensuring stable meshing between the toothed belt 5.2 on the material belt 5 and the drive gear 3.21, thereby guaranteeing the stability and smoothness of the movement of the material belt 5.

[0117] It is understandable that the drive component can be a stepper motor, or a combination of a stepper motor and a transmission structure such as a gear set or worm gear. By utilizing the pulse controllability, precise positioning capability and intermittent motion characteristics of the stepper motor, the rotation angle and start-stop timing of the drive gear 3.21 can be precisely controlled, thereby driving the material belt 5 to complete the quantitative and interval progressive feeding.

[0118] However, the aforementioned types of drive components have high requirements for control logic and require precise matching between signals.

[0119] To simplify the control logic, refer to Figures 11 to 15To better match the construction process of the self-tapping expansion bolts 6, in one example of the present invention, the drive assembly includes a pressing member 3.22, an elastic reset member 3.23, and a transmission member 3.24; wherein, the pressing member 3.22 is slidably engaged with the guide rail 3.3, and in a first direction, the loading position is located between the drill body 3.1 and the pressing member 3.22, and the pressing member 3.22 can move closer to or away from the drill body 3.1; the elastic reset member 3.23 is used to provide a preload force for the pressing member 3.22 to move away from the drill body 3.1; the pressing member 3.22 is connected to the drive gear 3.21 through the transmission member 3.24, which is used to convert the movement of the pressing member 3.22 away from the drill body 3.1 into the rotation of the drive gear 3.21.

[0120] With this setup, when installing the self-tapping expansion bolt 6 on the mounting surface (e.g., a wall), the drill body 3.1, along with the self-tapping expansion bolt 6, drills along the first direction. As the drilling progresses, the pressing member 3.22 contacts the mounting surface and slides closer to the drill body 3.1 under the pressure of the mounting surface. After the self-tapping expansion bolt 6 is drilled through, as the drill body 3.1 retracts, the pressing member 3.22 moves away from the drill body 3.1 and resets under the action of the elastic reset member 3.23. The transmission member 3.24 can convert the movement of the pressing member 3.22 away from the drill body 3.1 into the rotation of the drive gear 3.21, so that the pressing member 3.22 drives the material belt 5 to move during the reset process. After the pressing member 3.22 resets, it brings the next expansion bolt into the loading position, thus achieving matching of the loading process.

[0121] It is understood that, depending on different needs, the elastic reset member 3.23 can be configured in different structural forms, including but not limited to helical spring rods, gas springs, etc., and no specific limitations are made in the embodiments of the present invention.

[0122] More specifically, the transmission component 3.24 includes a transmission rack 3.241 and a transmission gear 3.242; wherein, the transmission rack 3.241 is connected to the pressing component 3.22 and is provided with helical teeth that are inclined in the positive direction, the positive direction being the direction in which the pressing component 3.22 moves away from the drill body 3.1; the transmission gear 3.242 is coaxially and fixedly connected to the drive gear 3.21 and meshes with the transmission rack 3.241 through helical teeth, the helical teeth of the transmission gear 3.242 at the meshing point are inclined in the negative direction, the negative direction being the direction in which the pressing component 3.22 moves closer to the drill body 3.1; the transmission rack 3.241 can elastically displace or return to its original position away from the transmission gear 3.242.

[0123] With this configuration, during drilling, the transmission rack 3.241 moves closer to the drill body 3.1 as the pressing component 3.22 approaches. Since the transmission rack 3.241 meshes with the helical teeth of the transmission gear 3.242, the transmission rack 3.241 cannot drive the transmission gear 3.242 to rotate at this time. Instead, it moves elastically away from the transmission gear 3.242 under the pressure of the transmission gear 3.242. After drilling is completed, under the action of the elastic reset component 3.23, the pressing component 3.22 drives the transmission rack 3.241 away from the drill body 3.1 to reset. At this time, the transmission rack 3.241 drives the transmission gear 3.242, which meshes with it, to rotate. The transmission gear 3.242 drives the drive gear 3.21 to rotate, thereby driving the material belt 5 to move and bring the next expansion bolt into the loading position.

[0124] More specifically, the transmission rack 3.241 is hinged to the pressing member 3.22, allowing the transmission rack 3.241 to swing closer to or further away from the transmission gear 3.242. An elastic structure (not shown in the figure) is provided between the transmission rack 3.241 and the pressing member 3.22. The elastic structure is used to provide a preload force for the transmission rack 3.241 to swing closer to the transmission gear 3.242.

[0125] With this configuration, during drilling, the transmission rack 3.241 moves closer to the drilling rig body 3.1 as the pressing member 3.22 moves. Under the pressure of the transmission gear 3.242, the transmission rack 3.241 elastically swings away from the transmission gear 3.242 and can maintain a tendency to return to its original position under the action of the elastic structure. This allows the pressing member 3.22 to drive the transmission rack 3.241 away from the drilling rig body 3.1 to return to its original position, thereby driving the transmission gear 3.242 to rotate.

[0126] It is understood that the specific types of elastic structures include, but are not limited to, torsion springs, coil springs, elastic sheets, etc., and the specific selection needs to be based on actual requirements. No specific restrictions are imposed in the embodiments of this invention.

[0127] Furthermore, the pressing member 3.22 is provided with a guide hole 3.221 extending along its own sliding direction and adapted to the guide rail 3.3. The pressing member 3.22 is slidably fitted onto the two main body sections 3.32 of the guide rail 3.3 through the guide hole 3.221. In this arrangement, the sliding and nested guide hole 3.221 and the guide rail 3.3 can provide constraint and guidance for the sliding of the pressing member 3.22, improving the smoothness and stability of the sliding of the pressing member 3.22.

[0128] Furthermore, the pressing component 3.22 is provided with a first clearance hole 3.222 and a second clearance hole 3.223; wherein, the first clearance hole 3.222 is used for the material feed strip 5 to pass through, thereby providing clearance for the material feed strip 5; the second clearance hole 3.223 is set along the above-mentioned movement trajectory to avoid the position of the self-tapping expansion bolt 6. This arrangement can effectively avoid interference between the pressing component 3.22 and the material feed strip 5 and the self-tapping expansion bolt 6.

[0129] In detail, refer to Figure 16 The pressing component 3.22 includes an end plate 3.224 and a side plate 3.225; there are two side plates 3.225, which are respectively connected to opposite sides of the end plate 3.224, making the pressing component 3.22 have an overall U-shaped structure. The output part is located within the space enclosed by the side plates 3.225 and the end plate 3.224. On a preset trajectory, one side plate 3.225 is located on the upstream side, and the other side plate 3.225 is located on the downstream side. The side of the end plate 3.224 facing away from the output part is formed as a pressing surface. A guide hole and a first clearance hole 3.222 are both provided on the side plate 3.225, and a second clearance hole 3.223 is provided at least on the upstream side plate 3.225 and extends from the side plate 3.225 to the end plate 3.224. With this configuration, the two side plates 3.225 of the pressing component 3.22 and the two main body sections 3.32 of the guide rail 3.3 are slidably connected through the guide through holes 3.221, which can simultaneously provide guidance for the pressing component 3.22 from both sides, further improving the stability and smoothness of the sliding of the pressing component 3.22.

[0130] In a further example of the present invention, the automatic bolt drilling machine 3 also includes a linear drive 3.4; the output end of the linear drive 3.4 is fixedly connected to the drilling machine body 3.1 and is used to drive the drilling machine body 3.1 to move along a first direction. With this configuration, the drilling machine body 3.1 and the self-tapping expansion bolts 6 on it can move along the first direction under the drive of the linear drive 3.4 to complete the drilling work.

[0131] In detail, the linear drive unit 3.4 includes a first drive unit 3.411.52 and a second drive unit 3.421.52; in the first direction, the second drive unit 3.421.52 is connected to the output end of the first drive unit 3.411.52, and the drill body 3.1 is connected to the output end of the second drive unit 3.421.52.

[0132] It is understood that the first driving component 3.411.52 and the second driving component 3.421.52 can be any form of linear drive element, including cylinders, hydraulic cylinders, electric actuators, etc. The specific selection and configuration need to be based on the construction scenario, and no specific restrictions are imposed in this embodiment of the invention.

[0133] In a further example of the invention, the automatic bolt drill 3 also includes a base 3.5; the end of the linear drive 3.4 away from the drill body 3.1 is fixedly connected to the base 3.5. This arrangement allows the base 3.5 to be supported on the ground, providing bottom support for the automatic bolt drill 3, facilitating the installation of self-tapping expansion bolts 6 on the top plate.

[0134] To further improve the construction efficiency of the self-tapping expansion bolt 6, in a further example of the present invention, referring to... Figures 17 to 20 The output part of the self-tapping expansion bolt 6 includes an output shaft and a docking mechanism 4; wherein, one end of the docking mechanism 4 is coupled to the output shaft, and the other end is used to dock with the tail of the self-tapping expansion bolt 6.

[0135] In detail, the docking mechanism 4 includes an outer sleeve 4.1, an inner rod 4.2, and a coupling structure 4.3. The outer sleeve 4.1 has an opening at one end along the axial direction and a fitting hole 4.11 at the other end, which is used to connect the nut 6.2 at the tail of the self-tapping expansion bolt 6. The inner rod 4.2 is coaxially inserted with the outer sleeve 4.1, and the inner rod 4.2 and the outer sleeve 4.1 can rotate synchronously in a coupled state and relative to each other in a decoupled state. The inner rod 4.2 has a first connecting part 4.21 at one end facing the fitting hole 4.11 and a second connecting part 4.22 at the other end, which is used to connect the output shaft. The inner rod 4.2 slides with the outer sleeve 4.1 in the axial direction, allowing the first connecting part 4.21 of the inner rod 4.2 to connect with the bolt body 6.1 of the self-tapping expansion bolt 6 in the decoupled state and to separate in the coupled state. The coupling structure 4.3 is suitable for coupling the inner rod 4.2 and the outer sleeve 4.1 in the coupled state.

[0136] With this configuration, after the self-tapping expansion bolt 6 enters the loading position, its axis coincides with the axis of the docking mechanism 4. The linear drive component 3.4 drives the drill body to move along the first direction (i.e., the axial direction of the self-tapping expansion bolt 6), causing the drill bit 6.5 of the self-tapping expansion bolt 6 to abut against the mounting surface. As the drive continues, under the reaction force of the wall, the self-tapping expansion bolt 6 and the docking mechanism 4 move closer together axially. The nut 6.2 of the self-tapping expansion bolt 6 is embedded in the mating hole 4.11, and the inner rod 4.2 slides relative to the outer sleeve 4.1, coupling its first connecting part 4.21 with the tail end of the self-tapping expansion bolt 6. At this time, the drill body... 3.1 Power is transmitted to the inner rod 4.2 via the output shaft. The inner rod 4.2 drives the bolt body 6.1 to rotate for drilling. The expansion tube 6.4 then enters the hole. After drilling is completed, some force is unloaded to separate the inner rod 4.2 from the tail end of the self-tapping expansion bolt 6 and couple the inner rod 4.2 with the outer tube 4.1. At this time, the drill body 3.1 transmits power to the inner rod 4.2 via the output shaft. The inner rod 4.2 drives the outer tube 4.1 to rotate and tighten the nut 6.2. The nut 6.2 squeezes the expansion tube 6.4 through the washer 6.3, forcing the expansion tube 6.4 to expand, thus completing the installation of the self-tapping expansion bolt 6.

[0137] In detail, one end of the outer sleeve 4.1 is open, forming the end opening of the outer sleeve 4.1 as described above, and the other end is provided with a polygonal fitting hole 4.11 for fitting the polygonal outer circumferential surface of the nut 6.2. The end of the inner rod 4.2 facing the fitting hole 4.11 is provided with a polygonal fitting groove, suitable for fitting with the polygonal outer circumferential surface of the tail of the bolt body 6.1, thus forming the first connecting part 4.21 described above. The second connecting part 4.22 is a polygonal columnar structure exposed outside the outer sleeve 4.1 and coaxially arranged with the inner rod 4.2, for fitting the polygonal bayonet of the output shaft.

[0138] In detail, the coupling structure 4.3 is located between the fitting hole 4.11 and the opening of the outer sleeve 4.1, and includes a first keyway 4.31 and a second keyway 4.32. The first keyway 4.31 is located on the outer circumferential surface of the inner rod 4.2, and the second keyway 4.32 is located on the inner wall of the outer sleeve 4.1 to match the first keyway 4.31. In the coupled state, the first keyway 4.31 and the second keyway 4.32 are engaged. With this configuration, when the inner rod 4.2 moves towards the tail of the bolt body 6.1 and finally connects with it, the first keyway 4.31 and the second keyway 4.32 separate, and the inner rod 4.2 is decoupled from the outer sleeve 4.1. After drilling is completed, when the inner rod 4.2 moves away from the tail of the bolt body 6.1 and finally separates from it, the first keyway 4.31 and the second keyway 4.32 engage, putting the inner rod 4.2 and the outer sleeve 4.1 in a coupled state.

[0139] Furthermore, the docking mechanism 4 also includes an elastic body 4.4, which provides a preload force to the inner rod 4.2 to move away from the fitting hole 4.11, and under the elastic force of the elastic body 4.4, the inner rod 4.2 and the outer sleeve 4.1 remain coupled.

[0140] In detail, the elastic body 4.4 includes a spring; the outer periphery of the inner rod 4.2 is provided with a first shoulder 4.23 protruding radially, and the inner wall of the outer sleeve 4.1 is provided with a second shoulder 4.12 protruding radially. The second shoulder 4.12 is close to the fitting hole 4.11 relative to the first shoulder 4.23. The spring is sleeved on the inner rod 4.2 and its two ends abut against the first shoulder 4.23 and the second shoulder 4.12 respectively.

[0141] Furthermore, to prevent the inner rod 4.2 from detaching from the outer tube 4.1, the docking mechanism 4 also includes a limiting structure, which includes a first stop 4.24 and a second stop 4.13. The first stop is located on the inner rod 4.2, and the second stop 4.13 is located on the outer tube 4.1. The second stop 4.13 is closer to the opening end of the outer tube 4.1 than the first stop 4.24. In the direction away from the fitting hole 4.11, the first stop 4.24 and the second stop 4.13 can abut and be limited.

[0142] In detail, the first stop 4.24 is radially protruding from the outer periphery of the inner rod 4.2, and the second stop 4.13 is a retaining ring, which is embedded in the retaining ring groove on the inner wall of the outer sleeve 4.1.

[0143] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0144] The flexible netting installation device provided in this invention allows for the storage, arrangement, unfolding, tensioning, and fixing of the flexible netting 2 in a single operation. This eliminates the need for manual positioning and fastening by construction personnel on-site, further reducing labor intensity and operational risks, and better meeting the demands of large-scale, high-efficiency engineering construction. Furthermore, this flexible netting installation device is not only suitable for laying netting on roof slabs (roof slab fixing), but also for vertical netting on walls (vertical wall fixing), and vertical installation on roof slabs without wall fixing (for sealing purposes). Its compact and flexible structure adapts to changes in tunnel roof slab undulations, demonstrating excellent adaptability and wide applicability.

[0145] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible net hanging device, characterized by, The application relates to a flexible net laying device, which comprises: a walking mechanism (1.1) provided with a mounting position (1.10) for mounting a flexible net (2) and enabling the flexible net (2) to be unwound along with the walking of the walking mechanism (1.1); a net laying and unfolding mechanism connected to the walking mechanism (1.1); the net laying and unfolding mechanism comprises an unfolding structure (1.2), a pressing structure (1.3) and a supporting structure (1.4) connected to a laying area; the unfolding structure (1.2) is used for unfolding a folded edge (2.1) of the flexible net (2) along a fold; the pressing structure (1.3) is used for pressing the unfolded folded edge (2.1) and guiding the folded edge (2.1) into the laying area; and the supporting structure (1.4) is used for providing support for the folded edge (2.1) of the laying area; the walking mechanism (1.1) is further provided with a connecting position for connecting an automatic bolt drilling machine (3) and enabling an output end of the automatic bolt drilling machine (3) to be located in the extension range of the laying area.

2. The flexible net hanging device according to claim 1, wherein A pressing gap is formed between the pressing structure (1.3) and the unfolding structure (1.2), one side of the pressing gap is used for allowing the folded edge (2.1) of the flexible net (2) to pass through, and the laying area is formed on the other side of the pressing gap.

3. The flexible net hanging device according to claim 2, wherein The pressing structure (1.3) comprises: a pressing arm (1.31) supported above the walking mechanism (1.1); one end of the pressing arm (1.31) is connected to the walking mechanism (1.1), and the other end extends to the side of the unfolding structure (1.2) and gap-fits with the side of the unfolding structure (1.2) to form the pressing gap; a first elastic pressing part (1.32) connected to the pressing arm (1.31) and used for providing a pre-tightening force for the folded edge (2.1) close to the unfolding structure (1.2).

4. The flexible net hanging device according to claim 3, wherein The first elastic pressing part (1.32) comprises: a first swinging part (1.321) hinged to the pressing arm (1.31) at one end and provided with a pressing end and capable of swinging close to or away from the unfolding structure (1.2) at the other end; a first elastic part connected between the first swinging part (1.321) and the pressing arm (1.31) and used for providing a pre-tightening force for the pressing end of the first swinging part (1.321) to swing close to the unfolding structure (1.2).

5. The flexible net hanging device according to any one of claims 1 to 4, characterized in that The unfolding structure (1.2) comprises: an unfolding plate (1.21) supported above the walking mechanism (1.1) and gap-fitted with the pressing structure (1.3) at the side to form the pressing gap, one surface of the unfolding plate (1.21) is provided as an unfolding surface and defines the laying area; a guide body (1.22) arranged at one end of the unfolding plate (1.21) close to the mounting position (1.10); one surface of the guide body (1.22) facing the same direction as the unfolding surface is provided as a guide surface, and the guide surface gradually inclines close to the unfolding surface in the advancing direction of the walking mechanism (1.1).

6. The flexible net hanging device according to claim 5, wherein The supporting structure (1.4) comprises: A second elastic pressing member (1.41) is connected to the unfolding surface and provided with at least one, which is used to provide the pre-tightening force for the flange (2.1) away from the unfolding surface.

7. The flexible net hanging device according to claim 6, wherein The second elastic pressing member (1.41) comprises: A second swing member (1.411) is hinged at one end to the unfolding surface and the other end is a pressing end and can swing close to or away from the unfolding surface; A second elastic member is connected between the second swing member (1.411) and the unfolding plate (1.21), which is used to provide the pre-tightening force for the pressing end of the second swing member (1.411) to swing away from the unfolding surface.

8. The flexible net hanging device of claim 5, wherein, The walking mechanism (1.1) is connected with a liftable supporting mechanism (1.5); One end of the supporting mechanism (1.5) is connected with the walking mechanism (1.1), and the other end is connected with a cantilever (1.6), which extends above the walking mechanism (1.1) along the radial direction of the supporting mechanism (1.5), and the pressing structure (1.3) is connected with the cantilever (1.6).

9. The flexible net hanging device according to claim 8, wherein The pressing structure (1.3) is hinged with the cantilever (1.6) and can swing close to or away from the unfolding structure (1.2) to adjust the width of the pressing seam.

10. The flexible net hanging device of claim 8, wherein, The supporting mechanism (1.5) is hinged with the walking mechanism (1.1), so that the supporting mechanism (1.5) can swing close to or away from the walking mechanism (1.1) to adjust the pitch angle of the supporting mechanism (1.5); and / or, The connecting position is provided on the unfolding plate (1.21), and further comprises a lifting mechanism (1.7) for driving the unfolding plate (1.21) to lift; and / or, The unfolding plate (1.21) is connected with a first rotary member (1.8), and the connecting position is formed on the output end of the first rotary member (1.8); and / or, Further comprising a second rotary member (1.9) for driving the unfolding plate (1.21) to rotate. Further comprising a second rotary member (1.9) for driving the unfolding plate (1.21) to rotate.

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