Roadway tunneling forepoling folding device

Abstract

The utility model discloses a roadway tunneling advance support folding device which comprises a main plate body, folding side plates are hinged to the two sides of the main plate body respectively, two sets of positioning sliding grooves are formed in the two ends of the main plate body respectively, a sleeving and clamping piece is connected between the two sets of positioning sliding grooves located on the same axis in a sliding mode, and the sleeving and clamping piece is connected with one side of each folding side plate in a clamped mode. Directional sliding grooves are formed in the two sides of the top of the main plate body respectively, movable inserting rod assemblies are slidably connected into the directional sliding grooves, inserting holes are formed in the folding side plates, the movable inserting rod assemblies penetrate through the directional sliding grooves and are connected with the inserting holes in an inserted mode, the main plate body is connected with a connecting base in an embedded mode, and positioning holes are formed in the main plate body and the folding side plates. The device has the advantages of being convenient to transport, store, assemble and disassemble, high in adaptability, good in durability and convenient to move.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadway driving support equipment technical field, concretely relates to a roadway driving advanced support folding device. BACKGROUND

[0002] In the field of modern mining, underground engineering construction and so on, roadway driving is a very key basic operation. In the roadway driving process, in order to guarantee the safety of construction personnel and the smooth progress of construction, the roadway must be advanced supported. However, some advanced support devices on the market have many drawbacks. First, many traditional advanced support devices are bulky, need to occupy a large amount of space in the transportation process, not only increase the transportation cost, but also may be difficult to realize long-distance transportation because of the space limitation of transport vehicles. For example, some large integral support structures need special large transport equipment when transporting, and it is difficult to drive on narrow mine roads.

[0003] Secondly, the installation process is extremely complex. The assembly of traditional support devices often needs more manpower and professional tools, and the installation steps are tedious, which consumes a lot of time. In actual construction, every minute delay may affect the project progress and increase the construction cost. Moreover, due to its complex structure, installation errors may occur during installation, further delaying the construction period.

[0004] Thirdly, the flexibility of the support structure is poor. Different roadways have great differences in shape and size due to geological conditions, design requirements and other factors. The traditional advanced support device is difficult to adjust flexibly according to the actual situation of the roadway, and has poor adaptability. For example, in some irregularly shaped roadways, the traditional support device cannot closely fit the roadway wall, resulting in poor support effect and safety hazards.

[0005] In summary, it is of great practical significance to develop a roadway driving advanced support folding device which is convenient to fold and install and has strong adaptability. This not only can improve the construction efficiency and reduce the construction cost, but also can better guarantee the safety of construction personnel and the smooth progress of the project. SUMMARY

[0006] The utility model aims at providing a roadway driving advanced support folding device to solve the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical means:

[0008] A kind of roadway tunneling advance support folding device, including main plate body, the two sides of the main plate body are hinged with folding side plate, two ends of the main plate body are respectively provided with two groups of symmetrically distributed positioning sliding slot, sliding connection is connected between the two groups of positioning sliding slot on the same axis line, the sleeve card piece is connected with the side of adjacent folding side plate, the top of the main plate body is provided with multiple groups of evenly distributed directional sliding slot on the two sides, sliding connection is connected in the directional sliding slot, the mobile insertion rod assembly is connected through directional sliding slot, the opposite side of the folding side plate and main plate body is provided with multiple groups of evenly distributed and with multiple groups of adjacent directional sliding slot one-to-one corresponding insertion hole, the mobile insertion rod assembly is connected through directional sliding slot and is movably inserted into the corresponding insertion hole, the bottom of the main plate body is embeddedly connected with connecting base, the connecting base is connected with external lifting equipment, the main plate body, folding side plate are provided with multiple groups of evenly distributed positioning holes.

[0009] As preferably, the main plate body, folding side plate are stainless steel products.

[0010] As preferably, one end of the main plate body is connected with handle.

[0011] As preferably, the other end of the main plate body is connected with multiple groups of evenly distributed pulleys.

[0012] As preferably, the sleeve card piece includes U-shaped rod, the two ends of the U-shaped rod are respectively connected with the sliding block of sliding connection with positioning sliding slot.

[0013] As preferably, the mobile insertion rod assembly includes the moving block of sliding connection with directional sliding slot, one side of the moving block is connected with the insertion pipe body of passing through directional sliding slot, and the insertion pipe body is movably inserted into the corresponding insertion hole.

[0014] As preferably, the moving block top is provided with inner recessed hole.

[0015] As preferably, the moving block and insertion pipe body are integrally made.

[0016] As preferably, the folding side plate is connected by the positioning screw rod with the insertion pipe body inserted into folding side plate side insertion hole. Beneficial effects

[0017] 1.The utility model is convenient to transport and store: by setting foldable side plate, the volume is reduced when the device is transported and stored, and it is convenient to operate.

[0018] 2.The utility model is convenient to install and disassemble: the design of mobile insertion rod assembly and sleeve card piece makes the installation and disassembly process of the device simple and fast, and improves construction efficiency.

[0019] 3. The utility model discloses a strong adaptability: the positioning hole on the main plate body and folding side plate can be connected with other support structure conveniently, improve the adaptability of device.

[0020] 4. The utility model discloses good durability: the use of stainless steel material has strengthened the durability of device, reduced maintenance cost.

[0021] 5. The utility model discloses convenient movement: the setting of handle and pulley has facilitated the movement of device in the roadway. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments in the utility model, for the ordinary skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0023] Figure 1 It is the structure schematic diagram of the utility model Figure 1 ;

[0024] Figure 2 It is the structure schematic diagram of the utility model Figure 2 ;

[0025] Figure 3 It is the structure schematic diagram of the utility model Figure 3 ;

[0026] Figure 4 It is the bottom view of the main plate body of the utility model;

[0027] Figure 5 It is the structure schematic diagram of the utility model sleeve card spare;

[0028] Figure 6 It is the structure schematic diagram of the utility model mobile insertion rod subassembly;

[0029] Among them, the sign is:

[0030] Main plate body 1, handle 2, positioning hole 3, connecting base 4, pulley 5, sleeve card spare 6, positioning sliding slot 7, mobile insertion rod subassembly 8, directional sliding slot 9, folding side plate 10, positioning screw rod 11, insertion hole 12, sliding block 601, U type pole 602, moving block 801, inner recess hole 802, insertion pipe body 803. DETAILED DESCRIPTION

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] 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.

[0033] 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. Example 1

[0034] like Figures 1-4 As shown, a tunnel excavation advance support folding device includes a main body 1, with folding side plates 10 hinged to both sides of the main body 1. Two sets of symmetrically distributed positioning grooves 7 are respectively opened at both ends of the main body 1. A sleeve 6 is slidably connected between the two sets of positioning grooves 7 located on the same axis. The sleeve 6 is engaged with one side of the adjacent folding side plate 10. Multiple sets of evenly distributed directional grooves 9 are opened on both sides of the top of the main body 1. A movable insertion rod assembly 8 that passes through the directional groove 9 is slidably connected in the directional groove 9. Multiple sets of evenly distributed insertion holes 12 are opened on the opposite side of the folding side plate 10 and the main body 1, and each set of adjacent directional grooves 9 is corresponding to one of them. The movable insertion rod assembly 8 passes through the directional groove 9 and is movably inserted into the corresponding insertion hole 12. A connecting base 4 is embedded in the bottom of the main body 1. The connecting base 4 is connected to an external lifting device. Multiple sets of evenly distributed positioning holes 3 are opened on both the main body 1 and the folding side plate 10.

[0035] Working principle:

[0036] Transportation and storage: when the device needs to be transported or stored, the folding side plates 10 on both sides of the main plate body 1 are hinged and can be folded towards the main plate body 1 along the hinge. At this time, the sleeve clamping piece 6 slides in the positioning sliding groove 7 and is sleeved with the folding side plate 10, which facilitates the folding and fixing of the folding side plate 10, thereby reducing the overall volume of the device and facilitating transportation and storage.

[0037] Installation process: after arriving at the construction site, the sleeve clamping piece 6 is slid in the positioning sliding groove 7 to make the folding side plate 10 disengage, and the folding side plate 10 is unfolded from the folded state. After unfolding in place, the moving insertion rod assembly 8 is slid in the directional sliding groove 9, and the insertion end of the moving insertion rod assembly 8 is inserted into the corresponding insertion hole 12 on the folding side plate 10, realizing stable connection of the main plate body 1 and the folding side plate 10.

[0038] Working state: the connecting base 4 is connected with external lifting equipment, and the height of the device can be adjusted through the lifting equipment to adapt to different height roadways. The positioning holes 3 on the main plate body 1 and the folding side plate 10 can be used to connect other supporting structures such as anchor rods and anchor cables, further enhancing the supporting effect. During the roadway excavation process, the device can provide effective advanced support for the roadway to ensure construction safety. Example 2

[0039] As shown in Figures 1-4 A roadway excavation advanced support folding device, comprising a main plate body 1, folding side plates 10 hinged on both sides of the main plate body 1, two groups of symmetrically distributed positioning sliding grooves 7 opened at both ends of the main plate body 1, a sleeve clamping piece 6 slidably connected between the two groups of positioning sliding grooves 7 on the same axis, the sleeve clamping piece 6 being clamped with one side of the adjacent folding side plate 10, a plurality of evenly distributed directional sliding grooves 9 opened on both sides of the top of the main plate body 1, a moving insertion rod assembly 8 slidably connected in the directional sliding groove 9 and penetrating the directional sliding groove 9, a plurality of evenly distributed insertion holes 12 corresponding to the plurality of adjacent directional sliding grooves 9 being opened on the opposite side of the folding side plate 10 and the main plate body 1, the moving insertion rod assembly 8 penetrating the directional sliding groove 9 and movably inserted into the corresponding insertion hole 12, a connecting base 4 embeddedly connected at the bottom of the main plate body 1, the connecting base 4 being connected with external lifting equipment, and a plurality of evenly distributed positioning holes 3 being opened in the main plate body 1 and the folding side plate 10.

[0040] The main plate body 1 and the folding side plate 10 are both stainless steel products.

[0041] The advantages of the above arrangement are:

[0042] Durability

[0043] Strong anti-corrosion ability: Roadway environments are usually harsh, with high humidity and the presence of various corrosive media, such as acidic or alkaline groundwater. Stainless steel has good corrosion resistance, effectively resisting the corrosion of these substances and preventing rust, greatly extending the service life of the support device compared to ordinary steel, and reducing the frequency of structural damage and replacement due to corrosion.

[0044] High structural stability: Stainless steel has high strength and hardness, better maintaining shape and structural integrity under long-term roadway roof pressure and various external forces during construction, reducing the risk of deformation or fracture and ensuring reliable performance of the advance support folding device throughout the entire roadway excavation process.

[0045] Maintenance

[0046] Convenient cleaning: Stainless steel surfaces are smooth and do not easily attract dust, dirt, and other impurities, making cleaning relatively simple during use. Ordinary cleaning tools and water can clean the surface, helping to maintain the device's cleanliness and facilitate inspection and maintenance.

[0047] Low maintenance cost: Due to its good corrosion resistance and non-damage characteristics, it does not need to be regularly treated for rust, painted, and other maintenance work, reducing the cost of manpower, material resources, and time.

[0048] Safety performance

[0049] Enhanced reliability: The reliability of the support device is crucial during excavation. The high strength and stability of stainless steel make it more likely to remain intact when subjected to sudden geological changes or construction accidents, providing more reliable safety protection for construction personnel and equipment and reducing the risk of accidents.

[0050] Good fire performance: Stainless steel has certain fire performance and can better maintain structural stability in the presence of electrical fires and other situations in the roadway, compared to some flammable or significantly performance-degrading materials at high temperatures, providing time for personnel evacuation and fire fighting.

[0051] Versatility and aesthetics

[0052] Wide adaptability: Stainless steel material can adapt to different roadway excavation conditions, whether in coal mines, metal mines, or other underground engineering, and has high versatility, reducing the need to replace different material support devices due to environmental differences.

[0053] Aesthetic appearance: stainless steel has a modern metallic luster, and the appearance is neat and beautiful. In some cases where the beauty of the underground environment is required, or during visits, inspections and other activities, it can improve the overall image of the entire roadway construction area.

[0054] One end of the main plate body 1 is connected with a handle 2.

[0055] The advantages of the above setting are:

[0056] Convenient operation

[0057] Convenient movement and adjustment: during the process of roadway excavation, it is often necessary to move or adjust the position of the advanced support folding device. The presence of the handle 2 makes it easier for workers to grasp and exert force, easily pushing or pulling the main plate body 1 to achieve the position movement of the device to adapt to different excavation progress and support needs.

[0058] Convenient installation and disassembly: when installing and disassembling the support device, the handle 2 provides a stable point of effort for the workers. By holding the handle 2, the angle and position of the main plate body 1 can be better controlled to accurately connect or separate with other components, improving the efficiency of installation and disassembly, reducing operation time and labor cost.

[0059] Improve safety

[0060] Enhance operation stability: when operating the device, the handle 2 can provide better holding stability, avoiding accidental hand slipping or uneven force, reducing the risk of device falling or collision causing personal injury and equipment damage.

[0061] Reduce labor intensity: with the handle 2, workers can adopt a more reasonable posture and force to operate the device, reducing body twisting and excessive force, thereby reducing labor intensity and the possibility of safety accidents caused by fatigue work.

[0062] Convenient maintenance and repair

[0063] Convenient inspection operation: when conducting daily inspection and maintenance of the device, the handle 2 facilitates workers to move the main plate body 1 to the appropriate position for more comprehensive and detailed inspection of the condition of the main plate body 1 and other components, timely discovering potential problems such as cracks and deformation, ensuring that the device is always in good operating condition.

[0064] Beneficial to repair operation: when the main plate body 1 or other components need to be repaired, the handle 2 can be used as a support point or a force point to facilitate workers to fix, turn over and other operations on the device, providing convenience for repair work and improving the efficiency and quality of repair.

[0065] The other end of the main plate body 1 is connected with multiple groups of evenly distributed pulleys 5.

[0066] The advantages of the above arrangement are:

[0067] Convenient to move

[0068] Reduce friction: The rolling friction of the pulleys 5 is much smaller than the sliding friction between the object and the ground. In the process of tunnel excavation, when the main plate body needs to be moved, the pulleys 5 can greatly reduce the friction between the main plate body 1 and the ground or other contact surfaces, making it easier to push or pull the main plate body 1, improving the efficiency of the device movement.

[0069] Flexible steering: Multiple groups of evenly distributed pulleys 5 can make the main plate body 1 more flexible in steering during movement. Workers can easily change the moving direction of the main plate body according to needs, better adapting to the complex terrain and construction environment in the tunnel, such as smoothly moving in curves or narrow spaces.

[0070] Protect the main plate body and the ground

[0071] Reduce wear and tear of the main plate body 1: Without the pulleys 5, the main plate body 1 directly contacts the ground during movement, which can cause severe wear and tear on the bottom of the main plate body 1, affecting its service life. The presence of the pulleys 5 separates the main plate body 1 from the ground, avoiding direct friction between the two, thereby protecting the main plate body 1 and reducing maintenance and replacement costs.

[0072] Reduce ground damage: When moving the main plate body 1, the pulleys 5 can distribute the weight of the main plate body 1, reducing the pressure on the ground and reducing the degree of damage to the tunnel ground. This effect is particularly important in some tunnels with high requirements for ground flatness, helping to maintain the integrity of the tunnel ground and reduce ground repair work.

[0073] Improve construction efficiency and safety

[0074] Quick positioning: The pulleys 5 enable the main plate body 1 to quickly and accurately move to the designated position, saving construction time and improving overall construction efficiency. In situations where rapid support is needed, the main plate body 1 can be quickly moved into position and deployed, providing timely support for the tunnel and ensuring construction safety.

[0075] Smooth movement: Multiple groups of evenly distributed pulleys 5 can ensure the balance and stability of the main plate body 1 during movement, reducing the risk of tipping or shaking due to center of gravity deviation or uneven force, and reducing the safety threat to construction personnel and equipment, making the construction process safer and more reliable.

[0076] Convenient to work with other equipment

[0077] Adaptable rail system: In some tunnel construction, a rail system may be equipped. The pulley 5 on the main plate body 1 can be well matched with the rail, facilitating the operation of the main plate body 1 on the rail, realizing the coordinated operation with other rail transportation equipment or supporting equipment, and improving the automation and mechanization degree of construction.

[0078] Conveniently docking other devices: The presence of the pulley 5 makes it easier for the main plate body 1 to dock with other construction devices or equipment. The main plate body 1 can be accurately moved to the position of docking with other devices through the pulley 5, realizing fast and accurate connection, and improving the coordination and work efficiency of the entire construction system.

[0079] As shown in Figure 5 The sleeve card piece 6 includes a U-shaped rod 602, and the two ends of the U-shaped rod 602 are respectively connected with a sliding block 601 that is in sliding connection with the positioning sliding groove 7.

[0080] The advantages of the above setting are:

[0081] Flexible positioning and adjustment

[0082] Strong adjustability: The sliding connection of the sliding block 601 and the positioning sliding groove 7 allows the sleeve card piece 6 to move flexibly on the positioning sliding groove 7 according to actual needs, so that the position of the sleeve card piece 6 can be easily adjusted to adapt to different installation, fixation or connection requirements, for example, the sleeve card piece 6 can be adjusted to the most suitable position for clamping or connecting according to the size, position and other factors of the fixed object.

[0083] Precise positioning: The positioning sliding groove 7 provides a clear movement track for the sliding block 601, which can ensure the accuracy and stability of the sleeve card piece 6 during movement and realize precise positioning. This is very important for some scenes that require high-precision installation or connection, which can ensure the relative position between components to be accurate and improve the assembly precision and performance of the entire structure.

[0084] Enhance connection stability

[0085] Disperse stress: The structural design of the U-shaped rod 602 allows the sleeve card piece 6 to evenly distribute the stress to the sliding blocks 601 at both ends when connected or fixed, and then transmit it to the positioning sliding groove 7 through the sliding blocks 601. This way of dispersing stress can avoid excessive local stress, improve the bearing capacity of the connection part of the sleeve card piece 6 and the positioning sliding groove 7, make the entire connection structure more stable and reliable, and can withstand greater external force and load.

[0086] Prevent loosening: When the sliding block 601 slides in the positioning sliding groove 7, due to the relatively close fit between the two, it can prevent the sleeve card 6 from loosening or shaking to a certain extent. Compared with other simple connection methods, this combination of sliding connection and U-shaped rod 602 can better maintain the stability of the connection, reduce the connection failure caused by factors such as vibration and impact, and ensure the safety and reliability of the equipment or structure during operation.

[0087] Convenient installation and disassembly

[0088] Quick installation: During installation, you only need to align the sliding block 601 with the positioning sliding groove 7, and then easily slide the sleeve card 6 along the sliding direction to complete the installation. The operation is simple and fast, which can greatly improve the installation efficiency and save installation time and labor cost.

[0089] Convenient disassembly: When the equipment or structure needs to be repaired, parts replaced, etc., the disassembly of the sleeve card 6 is also very convenient. Just slide the sliding block 601 out of the positioning sliding groove 7, and you can remove the sleeve card 6, which facilitates the maintenance or replacement of related parts, improving the maintenance convenience and operability of the equipment.

[0090] Provide guiding and limiting functions

[0091] Guiding function: The positioning sliding groove 7 provides a clear guiding function for the sliding block 601, so that the sleeve card 6 can only slide in a specific direction during movement, ensuring the accuracy of the movement path of the sleeve card 6, which helps to achieve some specific operations or functions, such as in some mechanisms that require linear motion or specific trajectory motion, it can ensure that the sleeve card 6 moves according to the design requirements, ensuring the normal operation of the entire mechanism.

[0092] Limiting function: When the sliding block 601 slides in the positioning sliding groove 7, limiting devices can be set at both ends or specific positions of the sliding groove to limit the movement range of the sliding block 601. This can prevent the sleeve card 6 from moving excessively and exceeding the allowed range, avoiding damage to other components or affecting the normal operation of the entire structure, playing a protective and safety limiting role.

[0093] Improve the universality and compatibility of the structure

[0094] Easy to replace and upgrade: The sliding connection of the sliding block 601 and the positioning sliding groove 7 makes the sleeve card 6 highly replaceable and upgradeable. If the sleeve card 6 is damaged or needs to be updated, it can be easily removed from the positioning sliding groove 7 and replaced with a new sleeve card 6 or upgraded without the need for major changes to the entire structure, reducing the cost of equipment updates and maintenance.

[0095] Convenient cooperation with other components: the connection mode of the sleeve card 6 with the positioning sliding groove 7 through the sliding block 601 can easily cooperate and connect with other components with similar sliding groove or sliding block structure, improving the universality and compatibility of the whole structure, facilitating application and integration in different devices or systems, and providing convenience for diversified design and function expansion of the device. Embodiment 3

[0096] As shown in Figures 1-4 , a roadway tunneling advance support folding device, comprising a main plate body 1, the two sides of the main plate body 1 are respectively hinged with folding side plates 10, two groups of symmetrical positioning sliding grooves 7 are respectively arranged at the two ends of the main plate body 1, a sleeve card 6 is slidably connected between the two groups of positioning sliding grooves 7 on the same axis, the sleeve card 6 is connected with one side of the adjacent folding side plate 10, a plurality of groups of evenly distributed directional sliding grooves 9 are respectively arranged at the two sides of the top of the main plate body 1, a movable insertion rod assembly 8 is slidably connected in the directional sliding groove 9 and penetrates the directional sliding groove 9, a plurality of groups of evenly distributed insertion holes 12 are respectively arranged on the opposite side of the main plate body 1 and correspond to the plurality of adjacent directional sliding grooves 9, the movable insertion rod assembly 8 penetrates the directional sliding groove 9 and is movably inserted into the corresponding insertion hole 12, a connecting base 4 is embeddedly connected at the bottom of the main plate body 1, the connecting base 4 is connected with an external lifting device, and the main plate body 1 and the folding side plate 10 are respectively provided with a plurality of groups of evenly distributed positioning holes 3.

[0097] As shown in Figure 6 , the movable insertion rod assembly 8 comprises a movable block 801 slidably connected with the directional sliding groove 9, and the movable block 801 is connected with an insertion pipe body 803 penetrating the directional sliding groove 9 on one side, and the insertion pipe body 803 is movably inserted into the corresponding insertion hole 12.

[0098] The advantages of the above arrangement are:

[0099] Convenient and efficient installation

[0100] Quick positioning and connection: the movable block 801 is slidably connected with the directional sliding groove 9, so that the insertion pipe body 803 can quickly move along the preset directional sliding groove 9 and be accurately positioned in the corresponding insertion hole 12. Compared with other connection methods requiring complex alignment operation, the worker only needs to push the movable block 801 along the sliding groove, so that the insertion pipe body 803 can be quickly aligned with the insertion hole 12, greatly shortening the installation time and improving the construction efficiency.

[0101] Single-person operation feasibility: this design makes the installation process relatively simple, and the worker can easily complete the operation, even in some cases a single person can complete the operation, reducing the demand for manpower and further optimizing the construction process.

[0102] Enhance the stability of the connection

[0103] Tight fit: The insertion tube 803 is movably inserted into the insertion hole 12, forming a tight fit. When the device is subjected to external forces, such as pressure from the roof of the tunnel or vibrations during construction, this tight connection can effectively disperse stress, preventing the connection from loosening or being damaged due to uneven local stress, ensuring the stability of the connection between the main plate body 1 and the folding side plate 10, thereby ensuring the reliability of the entire supporting device.

[0104] Multiple groups of cooperative action: Due to the presence of multiple groups of moving insertion rod assemblies 8 on both sides of the top of the main plate body 1, which cooperate with the corresponding insertion holes 12 on the folding side plate 10, the multiple connection points work together, further enhancing the stability of the overall structure and better resisting complex external forces.

[0105] The moving block 801 has an inner recess hole 802 at the top.

[0106] The advantages of the above arrangement are:

[0107] Provides auxiliary positioning function:

[0108] The inner recess hole 802 can serve as a positioning mark or auxiliary positioning point. When installing or debugging the moving insertion rod assembly 8, the worker can more accurately determine the position and direction of the moving block 801 through the inner recess hole 802, ensuring that the insertion tube 803 can be precisely aligned with the insertion hole 12, improving the accuracy and efficiency of installation.

[0109] Convenient tool operation:

[0110] The inner recess hole 802 provides a force point or operation space for the operating tool. When moving, adjusting or fixing the moving block 801, the worker can use the corresponding tool to insert into the inner recess hole 802 and apply force to operate, which is more convenient and labor-saving than directly operating the surface of the moving block 801, and can better control the force and precision of the operation.

[0111] Easy to grab and move:

[0112] During the installation or disassembly of the moving block 801, the inner recess hole 802 can facilitate the worker to grab and move with hands or clamps and other tools. Fingers or clamps can better embed into the inner recess hole 802, increasing friction and grip, avoiding the moving block 801 from slipping during operation, and improving the safety and convenience of operation.

[0113] The moving block 801 is integrally made with the insertion tube 803.

[0114] The advantages of the above arrangement are:

[0115] Structural performance

[0116] Enhance overall strength: One-piece production has no connection gap, which can effectively avoid the stress concentration at the connection part of the moving block and the insertion tube body. Compared with the structure composed of splicing or assembly, the overall strength is higher, and it is less likely to appear fracture, deformation and other problems when bearing larger external force, such as roadway pressure during the working process of the support device, so as to protect the stability and reliability of the whole mobile insertion rod assembly 8, and improve its working performance in complex working conditions.

[0117] Improve the stability of the structure: One-piece production ensures that the relative position accuracy between the moving block and the insertion tube body is very high, and the loosening and displacement between the two will not occur due to installation error or vibration during use, so that the insertion tube body 803 can always maintain the correct matching relationship with the insertion hole 12, ensuring the stability of the whole device structure, which is conducive to the better performance of the support device.

[0118] Manufacturing process

[0119] Simplify the manufacturing process: One-piece production does not need additional connection process such as welding, riveting or bolt connection, which reduces the manufacturing process, shortens the production cycle, improves the production efficiency, and also reduces the accumulation of manufacturing errors caused by multiple processes, which is conducive to ensuring the consistency and stability of product quality.

[0120] Reduce manufacturing cost: Due to the simplification of the manufacturing process, the cost of materials, equipment and labor required for connection components and connection process is reduced, and the overall manufacturing cost is reduced. Moreover, one-piece production reduces the rework and maintenance cost caused by possible quality problems at the connection part, further improving the economy of production.

[0121] Use and maintenance

[0122] Reduce failure points: One-piece structure has no loosening, wear and tear, leakage and other problems that may occur at the connection part, reducing the probability of failure, improving the operation reliability of the equipment, reducing the downtime and maintenance cost caused by failure, so that the support device can run more stably, and the smooth progress of the roadway excavation work is ensured.

[0123] Convenient maintenance: During maintenance, the structure is relatively simple, and there is no complex connection part that needs special inspection and maintenance. Workers can more conveniently check, clean and lubricate the moving block 801 and the insertion tube body 803 for overall maintenance, improving the maintenance efficiency and reducing the maintenance difficulty.

[0124] The folding side plate 10 is connected with the insertion tube body 803 inserted into the insertion hole 12 on the side of the folding side plate 10 through the positioning lead screw 11.

[0125] The advantages of the above setting are:

[0126] Providing a reliable connection:

[0127] The insertion of the cannula body 803 into the insertion hole 12 and the connection through the positioning screw 11 enable a stable mechanical connection between the folding side plate 10 and other components, which can withstand greater tension and pressure compared to some simple buckle or glue connection, ensuring that the folding side plate does not easily fall off or loosen during use, improving the stability of the entire structure.

[0128] Precise positioning and anti-deviation:

[0129] The positioning screw 11 can play an accurate positioning role, ensuring the fitting accuracy of the cannula body 803 and the insertion hole 12, so that the folding side plate 10 can be accurately positioned after installation, preventing it from deviating in all directions, which is beneficial to maintaining the geometric accuracy and integrity of the entire structure, ensuring the cooperative performance between components.

[0130] Uniform stress transmission:

[0131] The full contact of the cannula body 803 with the insertion hole 12 and the fastening effect of the positioning screw 11 enable the folding side plate 10 to uniformly transmit stress to other components connected thereto when subjected to external force, avoiding stress concentration in local areas, thereby improving the mechanical properties and carrying capacity of the entire structure and prolonging the service life of the structure.

[0132] Enhancing the overall integrity of the structure:

[0133] This connection method enables the folding side plate 10 and other components to form an organic whole, which is more compact and stable in structure, can work better together, and can better withstand various external forces and loads, improving the reliability and stability of the entire structure under complex working conditions, which is beneficial to ensuring the normal operation of the entire system.

[0134] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0135] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment exhibits only one independent technical solution, and the present specification is described in this manner only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A roadway heading advance support folding device, characterized in that, The utility model provides a foldable board, including main board body (1), both sides of main board body (1) are hinged with folding side plate (10) respectively, and two groups of symmetrical distribution's positioning sliding slot (7) are set up in both ends of main board body (1) respectively, and the positioning sliding slot (7) of two groups on the same axis line is connected with sleeve card piece (6) between sliding, sleeve card piece (6) is connected with the side of adjacent folding side plate (10) with clamping, and the top of main board body (1) is set up with multiple groups of even distribution's directional sliding slot (9) respectively, and directional sliding slot (9) is connected with mobile insertion rod subassembly (8) of the through directional sliding slot (9) sliding, and the opposite side of folding side plate (10) and main board body (1) is set up with multiple groups of even distribution and with multiple groups of adjacent directional sliding slot (9) one to one corresponding's insertion hole (12), mobile insertion rod subassembly (8) is through directional sliding slot (9) and with corresponding insertion hole (12) movable insertion, and the bottom of main board body (1) is embeddedly connected with connecting base (4), connecting base (4) is connected with external lifting equipment, and main board body (1), folding side plate (10) are all set up with multiple groups of even distribution's positioning hole (3).

2. A roadway heading advance support folding device according to claim 1, characterised in that, The main board body (1) and the folding side plate (10) are both stainless steel products.

3. A roadway heading advance support folding device according to claim 2, characterised in that, One end of the main board body (1) is connected with a handle (2).

4. A roadway heading advance support folding device according to claim 3, characterised in that, The other end of the main board body (1) is connected with multiple groups of evenly distributed pulleys (5).

5. The roadway heading advance support folding device according to claim 1, characterized in that, The sleeve card piece (6) includes a U-shaped rod (602), and the two ends of the U-shaped rod (602) are respectively connected with sliding blocks (601) that are in sliding connection with the positioning sliding slots (7).

6. A roadway heading advance support folding device according to claim 1, characterized in that, The mobile insertion rod subassembly (8) includes a mobile block (801) that is in sliding connection with the directional sliding slot (9), and one side of the mobile block (801) is connected with an insertion pipe body (803) that penetrates through the directional sliding slot (9), and the insertion pipe body (803) is movably inserted into the corresponding insertion hole (12).

7. A roadway heading advance support folding device according to claim 6, characterised in that, The mobile block (801) is provided with an inner recess hole (802) at the top.

8. A roadway heading advance support folding device according to claim 7, characterised in that, The mobile block (801) and the insertion pipe body (803) are integrally formed.

9. A roadway heading advance support folding device according to claim 8, characterised in that, The folding side plate (10) is connected with the insertion pipe body (803) that is movably inserted into the insertion hole (12) on the side of the folding side plate (10) through a positioning screw rod (11).

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