A reinforced coal mine roadway support device

Abstract

This utility model discloses a reinforced coal mine roadway support device, relating to the field of coal mine roadway support technology. The reinforced coal mine roadway support device includes two lifting structures arranged in parallel, with a support structure movably connected between the tops of the two lifting structures. By setting up the lifting structures and utilizing the connecting steel bars and lifting steel bars on the outer side of the reinforced base, a vertical protective barrier can be constructed along the outer edge of the reinforced base, effectively preventing debris that may fall into the roadway from directly impacting the inner side of the support device. Furthermore, by further wrapping the connecting steel bars and lifting steel bars with reinforcing steel bars, an additional lateral protective layer can be formed. This dual protection mechanism ensures that personnel and equipment in the roadway are protected from potential falling object injuries, thereby improving the safety of the working environment.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway support technology, specifically a reinforced coal mine roadway support device. Background Technology

[0002] Currently, coal mining mainly relies on underground mining, which requires the excavation of numerous roadways underground. Roadway support structures are used to maintain the smooth flow of the roadways and the stability of the surrounding rock. The basic purpose of supporting the roadways is to mitigate and reduce the movement of the surrounding rock, so that the roadway cross-section does not shrink excessively, and at the same time to prevent the collapse of the scattered and damaged surrounding rock.

[0003] In the existing technology, due to the unevenness of the surrounding rock in the roadway, there is usually "point contact" between the surrounding rock and the support structure, which makes the support structure more concentrated. The local stress points of the roadway support structure are prone to damage due to increased stress. In severe cases, it can lead to deformation of the roadway support structure and failure to effectively support the surrounding rock, resulting in poor protection. Utility Model Content

[0004] This invention provides a reinforced coal mine roadway support device to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reinforced coal mine roadway support device, comprising two lifting structures, which are arranged in parallel, and a support structure is movably connected between the top ends of the two lifting structures.

[0006] The lifting structure includes four reinforcing bases. Two opposite reinforcing bases are fixedly connected by a connecting crossbar. Connecting steel bars are provided on the outer side of the two reinforcing bases on the same side. Lifting steel bars are welded to the top of the connecting steel bars. Reinforcing steel bars are movably inserted between the two lifting steel bars on the same side.

[0007] The support structure includes a placement plate, the bottom end of which is movably engaged with the top end of the supporting steel bar, and three buffer components are provided at the top end of the placement plate, with a protective frame provided between the outer sides of the three buffer components.

[0008] The buffer assembly includes an arc-shaped support frame, the bottom end of which is fixedly connected to the top end of the placement plate. A buffer spring sheet is provided at the top end of the arc-shaped support frame, and an abutment arc plate is elastically connected to the top end of the arc-shaped support frame through the buffer spring sheet.

[0009] Furthermore, an inner plate is fixedly installed on the inner side of the connecting steel bar, and an outer splicing block is fixedly installed on the outer side of the reinforcing base. The inner plate and the outer splicing block are movably connected by a pin.

[0010] Furthermore, the bottom end of the reinforcing base is provided with a plug hole, and the reinforcing base is connected to the inner wall of the roadway through the plug hole and a bolt.

[0011] Furthermore, the inner side of the protective frame is movably connected with reinforcing profiles, and adjacent reinforcing profiles are fitted together.

[0012] Furthermore, a clamping recess is installed at the bottom end of the contact arc plate, and the bottom end of the protective frame is located inside the notch of the clamping recess.

[0013] Furthermore, the outer side of the abutting arc plate is provided with an abutting protrusion, and the other side of the abutting protrusion overlaps with the inner side of the protective frame.

[0014] Compared with the prior art, this utility model provides a reinforced coal mine roadway support device, which has the following beneficial effects:

[0015] 1. This reinforced coal mine roadway support device, by setting up a support structure, utilizes the connecting steel bars and support steel bars on the outside of the reinforced base to build a vertical protective barrier along the outer edge of the reinforced base. This effectively prevents debris that may fall into the roadway from directly hitting the inner side of the support device. In addition, by further wrapping the connecting steel bars and support steel bars with reinforced steel bars, an additional lateral protective layer can be formed. This dual protection mechanism ensures that personnel and equipment in the roadway are protected from potential falling object injuries, thereby improving the safety of the working environment.

[0016] 2. This reinforced coal mine roadway support device, through the setting of a support structure and the use of a protective frame; 204 stainless steel and reinforced profiles can provide stable support for the roadway dome. In addition, with the elastic buffering effect of the buffer spring sheet in the buffer component, it can absorb the impact force transmitted to the support device by the surrounding rock of the roadway, thereby reducing the impact damage to the support device and improving the impact resistance of the support device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the lifting structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the support structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the buffer component of this utility model.

[0021] In the diagram: 1. Lifting structure; 101. Reinforced base; 102. Connecting crossbar; 103. External splicing block; 104. Inner panel; 105. Connecting steel bar; 106. Lifting steel bar; 107. Reinforcing steel bar; 2. Supporting structure; 201. Placement plate; 202. Buffer assembly; 203. Protective frame; 204. Reinforcing profile; 205. Arc-shaped lifting frame; 206. Buffer spring sheet; 207. Abutting arc plate; 208. Clamping concave block; 209. Abutting protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model discloses a reinforced coal mine roadway support device, including two lifting structures 1, which are placed in parallel, and a support structure 2 is movably connected between the top ends of the two lifting structures 1.

[0024] The lifting structure 1 includes four reinforcing bases 101. Two opposite reinforcing bases 101 are fixedly connected by a connecting crossbar 102. Connecting steel bars 105 are provided on the outer side of the two reinforcing bases 101 on the same side. Lifting steel bars 106 are welded to the top of the connecting steel bars 105. Reinforcing steel bars 107 are movably inserted between the two lifting steel bars 106 on the same side.

[0025] By setting up the support structure 1, and utilizing the connecting steel bars 105 and the support steel bars 106 on the outer side of the reinforced base 101, a vertical protective barrier can be built along the outer edge of the reinforced base 101. This effectively prevents debris that may fall into the roadway from directly hitting the inner side of the support device. In addition, by further wrapping the reinforcing steel bars 107 around the connecting steel bars 105 and the support steel bars 106, an additional transverse protective layer can be formed. This dual protection mechanism ensures that personnel and equipment in the roadway are protected from potential falling object injuries, thereby improving the safety of the working environment.

[0026] The support structure 2 includes a placement plate 201, the bottom end of which is movably engaged with the top end of the supporting steel bar 106. The top end of the placement plate 201 is provided with three buffer components 202, and a protective frame 203 is provided between the outer sides of the three buffer components 202.

[0027] The buffer assembly 202 includes an arc-shaped support frame 205, the bottom end of which is fixedly connected to the top end of the placement plate 201. A buffer spring plate 206 is provided at the top end of the arc-shaped support frame 205, and an abutment arc plate 207 is elastically connected to the top end of the arc-shaped support frame 205 through the buffer spring plate 206.

[0028] By setting up the support structure 2, the protective frame 203 and the reinforcing profile 204 can provide stable support for the dome of the roadway. In addition, with the elastic buffering effect of the buffer spring plate 206 in the buffer component 202, the impact force transmitted to the support device by the surrounding rock of the roadway can be absorbed, thereby reducing the impact damage to the support device and improving the impact resistance of the support device.

[0029] Specifically, an inner plate 104 is fixedly installed on the inner side of the connecting steel bar 105, and an outer splicing block 103 is fixedly installed on the outer side of the reinforcing base 101. The inner plate 104 and the outer splicing block 103 are connected by a pin.

[0030] In this embodiment, the connecting steel bar 105 and the reinforcing base 101 can be easily assembled and disassembled by the latching connection between the inner panel 104 and the outer splicing block 103, thereby improving the flexibility and maintainability of the support device. In addition, this latching method also helps to enhance the connection strength between the connecting steel bar 105 and the reinforcing base 101, ensuring the overall stability of the support device.

[0031] Specifically, the bottom end of the reinforcing base 101 is provided with a plug hole, and the reinforcing base 101 is connected to the inner wall of the roadway through the plug hole and the plug.

[0032] In this implementation scheme, the reinforcing base 101 is securely connected to the inner wall of the roadway via insertion holes and bolts. This design not only facilitates installation and disassembly but also allows for flexible adjustments based on the actual conditions of the roadway, ensuring a tight fit between the support device and the inner wall of the roadway, thereby improving the support effect. Simultaneously, the connection method using insertion holes and bolts also possesses high load-bearing capacity and stability, effectively resisting the compression and deformation of the surrounding rock in the roadway and maintaining the long-term stability of the support device.

[0033] Specifically, a reinforcing profile 204 is movably inserted into the inner side of the protective frame 203, and adjacent reinforcing profiles 204 are fitted together.

[0034] In this embodiment, adjacent reinforcing profiles 204 are fitted together, which further enhances the structural strength and stability of the protective frame 203. This design allows the support device to better withstand the pressure and deformation of the surrounding rock in the roadway, preventing damage or deformation of the support device and thus ensuring the stability and safety of the roadway. At the same time, the movable plug-in method of the reinforcing profiles 204 also facilitates flexible adjustment according to the actual conditions of the roadway, improving the adaptability and practicality of the support device.

[0035] Specifically, a clamping recess 208 is installed at the bottom end of the abutting arc plate 207, and the bottom end of the protective frame 203 is located inside the notch of the clamping recess 208.

[0036] In this embodiment, the abutment plate 207 forms a stable clamping connection with the bottom end of the protective frame 203 through the clamping recess 208 at its bottom end. This design not only enhances the connection strength between the abutment plate 207 and the protective frame 203, but also allows the abutment plate 207 to remain more firmly in place when subjected to external impact, making it less prone to displacement or detachment. The inner side of the notch of the clamping recess 208 fits tightly with the bottom end of the protective frame 203, forming effective support and limiting, further improving the overall stability and safety of the support device.

[0037] Specifically, the outer side of the abutting arc plate 207 is provided with an abutting protrusion 209, and the other side of the abutting protrusion 209 overlaps with the inner side of the protective frame 203.

[0038] In this embodiment, the abutment protrusion 209 is made of soft material. Since the abutment protrusion 209 contacts the protective frame 203 earlier than the abutment arc plate 207, the soft material of the abutment protrusion 209 not only provides a buffering effect, but also absorbs the pressure attached to the protective frame 203 when it comes into contact with and deforms. When the surrounding rock of the roadway deforms or moves, the abutment protrusion 209 can effectively resist such deformation or movement, maintaining the stability and integrity of the support device.

[0039] It should be noted that the abutting bump 209 can be made of rubber or soft plastic material such as polyvinyl chloride.

[0040] In use, the operator can first securely connect the reinforcing base 101 to the inner wall of the roadway through the plug hole and the bolt;

[0041] Subsequently, the connecting steel bar 105 and the reinforcing base 101 are assembled by using the pins between the inner plate 104 and the outer splicing block 103 to ensure a stable connection.

[0042] Next, the supporting steel bar 106 is welded to the top of the connecting steel bar 105, and the reinforcing steel bar 107 is movably inserted between the two supporting steel bars 106 on the same side to enhance the overall structural strength.

[0043] Next, the bottom end of the placement plate 201 is movably connected to the top end of the supporting steel bar 106;

[0044] Three buffer components 202 are installed at the top of the placement plate 201, and a protective frame 203 is set between the outer sides of the buffer components 202. A reinforcing profile 204 is movably inserted into the inner side of the protective frame 203, and adjacent reinforcing profiles 204 fit together to enhance the support capacity of the protective frame 203;

[0045] Finally, the abutment plate 207 forms a stable clamping connection with the bottom end of the protective frame 203 through the clamping recess 208 at the bottom end. At the same time, the abutment protrusion 209 provided on the outer side of the abutment plate 207 overlaps with the inner side of the protective frame 203, further improving the overall stability and safety of the support device.

[0046] Once the entire support system is assembled, it can effectively support coal mine roadways, improve the stability and safety of the roadways, and provide strong support for coal mining operations.

[0047] In summary, this reinforced coal mine roadway support device, by setting up a support structure 1 and utilizing the connecting steel bars 105 and the support steel bars 106 on the outer side of the reinforced base 101, can construct a vertical protective barrier along the outer edge of the reinforced base 101, effectively preventing debris that may fall into the roadway from directly impacting the inner side of the support device. In addition, by further wrapping the connecting steel bars 105 and the support steel bars 106 with reinforced steel bars 107, an additional transverse protective layer can be formed. This dual protection mechanism ensures that personnel and equipment in the roadway are protected from potential falling object injuries, thereby improving the safety of the working environment.

[0048] By setting up the support structure 2, the protective frame 203 and the reinforcing profile 204 can provide stable support for the dome of the roadway. In addition, with the elastic buffering effect of the buffer spring plate 206 in the buffer component 202, the impact force transmitted to the support device by the surrounding rock of the roadway can be absorbed, thereby reducing the impact damage to the support device and improving the impact resistance of the support device.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced coal mine roadway support device comprising two lifting structures (1), characterized in that: Two lifting structures (1) are placed in parallel, and a support structure (2) is movably connected between the tops of the two lifting structures (1). The lifting structure (1) includes four reinforcing bases (101). Two opposite reinforcing bases (101) are fixedly connected by a connecting crossbar (102). Connecting steel bars (105) are provided on the outer side of the two reinforcing bases (101) on the same side. Lifting steel bars (106) are welded to the top of the connecting steel bars (105). Reinforcing steel bars (107) are movably inserted between the two lifting steel bars (106) on the same side. The support structure (2) includes a placement plate (201), the bottom end of which is movably connected to the top end of the supporting steel bar (106), and the top end of the placement plate (201) is provided with three buffer components (202), and a protective frame (203) is provided between the outer sides of the three buffer components (202). The buffer assembly (202) includes an arc-shaped support frame (205), the bottom end of which is fixedly connected to the top end of the placement plate (201), and a buffer spring plate (206) is provided at the top end of the arc-shaped support frame (205). An abutment arc plate (207) is elastically connected to the top end of the arc-shaped support frame (205) through the buffer spring plate (206).

2. The reinforced coal mine roadway support device according to claim 1, characterized in that: An inner plate (104) is fixedly installed on the inner side of the connecting steel bar (105), and an outer splicing block (103) is fixedly installed on the outer side of the reinforcing base (101). The inner plate (104) and the outer splicing block (103) are connected by a pin.

3. The reinforced coal mine roadway support device according to claim 1, characterized in that: The bottom end of the reinforcing base (101) is provided with a plug hole, and the reinforcing base (101) is connected to the inner wall of the roadway through the plug hole and the plug.

4. The reinforced coal mine roadway support device according to claim 1, characterized in that: The inner side of the protective frame (203) is movably connected with a reinforcing profile (204), and adjacent reinforcing profiles (204) are fitted together.

5. The reinforced coal mine roadway support device according to claim 1, characterized in that: The bottom end of the contact arc plate (207) is equipped with a clamping recess (208), and the bottom end of the protective frame (203) is located inside the notch of the clamping recess (208).

6. The reinforced coal mine roadway support device according to claim 1, characterized in that: The outer side of the abutting arc plate (207) is provided with an abutting protrusion (209), and the other side of the abutting protrusion (209) overlaps with the inner side of the protective frame (203).

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