Limiting structure for arch support splicing

Abstract

The application belongs to the technical field of support limiting structure, and discloses a limiting structure for splicing an arched support, which comprises a reinforcing mechanism for reinforcing a U-shaped steel for assembling an arched roadway support, the reinforcing mechanism comprises a connecting assembly, the connecting assembly comprises connecting pieces which are buckled and matched with the edges of the steel bodies on the two sides of the U-shaped steel and screws which are arranged through the two ends of the connecting pieces and are screwed with the U-shaped steel, and the reinforcing mechanism further comprises a supporting assembly for reinforcing the middle section of the connecting piece. The application strengthens the structural strength of the U-shaped steel by arranging the reinforcing mechanism, thereby reducing the probability of damage and bending deformation of the mine roadway caused by long-time support.

Description

Technical Field

[0001] This utility model relates to the field of bracket limiting structure technology, and in particular to a limiting structure for splicing arched brackets. Background Technology

[0002] Arch support limiting structure is an auxiliary component system used to constrain the displacement of arch supports and ensure their structural stability. It is widely used in underground space support scenarios such as mine shafts, tunnel engineering, and underground pipe corridors. The core function of the arch support limiting structure is to limit the displacement and deformation of the arch support during the deformation process under stress through mechanical limiting.

[0003] In existing mine roadway supports, multiple U-shaped steel sections are spliced ​​together to form an arched support structure as the supporting structure for the mine roadway. However, ordinary U-shaped steel structures have low strength, and long-term support of mine roadways is prone to damage and bending deformation, posing a major hidden danger to the safety of mine roadway operations. Utility Model Content

[0004] To solve the above problems, this utility model provides a limiting structure for splicing arched brackets.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a limiting structure for splicing arched supports, including a reinforcing mechanism for reinforcing U-shaped steel for assembling arched tunnel supports, the reinforcing mechanism including a connecting component, the connecting component including a connector that engages with the steel body edges on both sides of the U-shaped steel and a screw that passes through both ends of the connector and is threadedly connected to the U-shaped steel, the reinforcing mechanism also including a support component for reinforcing the middle section of the connector.

[0006] By adopting the above technical solution, when workers need to reinforce U-shaped steel, they place the sheet-like connectors in the corresponding positions, then use tools to bend both ends of the connectors to engage with the steel edges on both sides of the U-shaped steel. The connectors are then fixed to the U-shaped steel with screws, and the middle section of the U-shaped steel is reinforced using support components, thereby enhancing the reinforcement effect of the connectors. This application changes the traditional method of supporting mine roadways based on the structural strength of the U-shaped steel itself, improving the support strength of the U-shaped steel and reducing the probability of safety hazards caused by bending deformation.

[0007] Furthermore, the support assembly includes a first support unit, which includes a mounting plate fixed to the bottom of the connector, a support column fixed to the bottom of the mounting plate, and a block fixed to the lower end of the support column. The bottom of the block is in contact with the inner wall of the U-shaped steel. The support assembly also includes a first reinforcement unit for reinforcing the first support unit.

[0008] By adopting the above technical solution, the setting of the first support unit improves the support effect of the connector on the U-shaped steel. The external pressure on the U-shaped steel is transmitted to the connector, and the connector transmits the pressure to the inner wall of the U-shaped steel through the mounting plate, support column and block, reducing the probability of the U-shaped steel bending due to excessive local stress caused by the pressure being concentrated at a point on the connector.

[0009] Furthermore, the first reinforcement unit is provided in two sets and symmetrically distributed about the support column. Each set of the first reinforcement unit includes a U-shaped plate at the bottom of the connector, a clamp sleeved on the support column, a reinforcing rib fixed to the side of the clamp away from the support column, a support plate at the top of the reinforcing rib, and a screw rod that passes through the support plate and is clearance-fitted with the support plate. The screw rod is threaded to the U-shaped plate, and a first nut that is threaded to the screw rod is provided. The top of the first nut abuts against the bottom of the support plate. A bolt that is clearance-fitted to the clamp passes through the clamp, and a first nut that is threaded to the bolt is provided. The first nut abuts against the clamp, and the top of the clamp abuts against the bottom of the mounting plate.

[0010] Furthermore, a limiting ring is fixedly sleeved on the support column, and the top of the limiting ring abuts against the bottom of the clamp.

[0011] By adopting the above technical solution, when workers need to reinforce the first support unit, they first need to put two clamps on the support column. The clamps are initially positioned by the threaded engagement of the screw and the U-shaped plate. Workers then use tools to connect the first nut to the bolt, thereby fixing the two clamps. Subsequently, the first nut is threaded onto the screw, thus enhancing the stability of the connection. At the same time, the limiting ring on the support column and the mounting plate cooperate to provide bidirectional vertical limiting for the clamps, preventing them from shifting due to stress.

[0012] Furthermore, the support assembly includes a second support unit, which includes an arc-shaped plate fixed to the top of the connector and arc-shaped connecting plates fixed to the side walls of the arc-shaped plate. The support assembly also includes a second reinforcement unit for reinforcing the second support unit.

[0013] By adopting the above technical solution, the setting of the arc-shaped plate and the arc-shaped connecting plate improves the supporting effect of the connector on the U-shaped steel. The arc-shaped structure of the arc-shaped plate and the arc-shaped connecting plate fits the force transmission path better, converting part of the tensile force into the compressive stress of the arc surface, reducing the probability of dents, bending or breakage caused by excessive local stress in the U-shaped steel due to the pressure being concentrated at a point on the connector.

[0014] Furthermore, the second reinforcement unit is provided in two sets and symmetrically distributed about the arc-shaped plate. Each set of the second reinforcement unit includes a fixing block set on the inner wall of the U-shaped steel and a long rod that passes through the arc-shaped connecting plate. The top of the fixing block is provided with a slot for inserting the long rod. The top of the long rod is provided with a limiting block that abuts against the arc-shaped connecting plate. A second nut that is threadedly connected to the long rod is sleeved on it. The top of the second nut abuts against the bottom of the arc-shaped connecting plate. A threaded hole is opened at the lower end of the long rod. An opening is provided at the position corresponding to the threaded hole on the fixing block. The opening communicates with the slot. A stud that is threadedly connected to the threaded hole is provided on the opening.

[0015] By adopting the above technical solution, the workers insert the long rod into the arc-shaped connecting plate, then put the second nut on the long rod, and insert the long rod into the slot so that the threaded hole corresponds to the opening of the fixing block. The workers use tools to fix the stud and the second nut respectively, thereby strengthening the fixing effect of the arc-shaped connecting plate and the arc-shaped plate body, thereby strengthening the supporting effect of the connector on the U-shaped steel and improving the stability of the U-shaped steel.

[0016] Furthermore, both of the fixing blocks are provided with weight-reducing holes.

[0017] By adopting the above technical solution and setting the weight-reducing holes, the production cost of materials is reduced, the weight of the material itself is reduced, and the efficiency of subsequent handling by staff is improved.

[0018] Furthermore, the joints of two adjacent U-shaped steels are connected by a fixing component. The fixing component is provided in multiple sets. Each set of the fixing component includes a clamp set at the bottom of the U-shaped steel and fitting against it, a U-shaped connecting rod set at the top of the U-shaped steel and fitting against it, and a threaded rod fixed to the lower end of the U-shaped connecting rod. There are two threaded rods and they are symmetrically distributed. The threaded rods pass through the clamp and are clearance-fitted. The fixing component also includes a threaded cap that is threadedly connected to the threaded rod.

[0019] By adopting the above technical solution, when workers need to fix the joints of multiple U-shaped steels, they only need to fit the top of the clamp with the bottom of the U-shaped steel, then pass the threaded rods at both ends of the U-shaped connecting rod through the two ends of the clamp, and then connect the threaded cap to the threaded rod with a tool, thereby achieving the fixation between two adjacent U-shaped steels.

[0020] In summary, this utility model has the following beneficial effects: When workers need to reinforce U-shaped steel, they place the sheet-like connector in the corresponding position, then use tools to bend both ends of the sheet-like connector to engage with the steel body edges on both sides of the U-shaped steel, and then fix the connector to the U-shaped steel with screws. Workers then reinforce the middle section of the U-shaped steel with the support components, thereby enhancing the reinforcement effect of the connector on the U-shaped steel. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 yes Figure 1 Another structural diagram from a different perspective; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the U-shaped plate in Embodiment 1 of this utility model; Figure 5 This is a cross-sectional structural diagram of Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 7 yes Figure 6 Another structural diagram from a different perspective; Figure 8 yes Figure 7 Enlarged view of point B in the middle; Figure 9 This is a schematic diagram of the connection structure of the long rod and the stud in Embodiment 2 of this utility model; Figure 10 This is a cross-sectional structural diagram of Embodiment 2 of this utility model.

[0022] In the diagram: 1. U-shaped steel; 2. Reinforcing mechanism; 21. Connecting assembly; 211. Connector; 212. Screw; 22. Support assembly; 221. First support unit; 2211. Mounting plate; 2212. Support column; 2213. Block; 222. First reinforcing unit; 2221. U-shaped plate; 2222. Clamp; 2223. Reinforcing rib; 2224. Support plate; 2225. Screw; 223. Second support unit; 2231. Arc-shaped plate; 2232. Arc 224. U-shaped connecting plate; 224. Second reinforcing unit; 2241. Fixing block; 22411. Slot; 22412. Opening; 22413. Weight reduction hole; 2242. Long rod; 22421. Limiting block; 22422. Second nut; 22423. Threaded hole; 3. First nut; 4. Bolt; 41. First nut; 5. Limiting ring; 6. Stud; 7. Fixing assembly; 71. Clamp; 72. U-shaped connecting rod; 73. Threaded rod; 74. Threaded cap; 8. Fixing plate. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. Example

[0024] like Figure 1-5 As shown in the embodiment of this application, a limiting structure for splicing arched supports is disclosed, including a reinforcing mechanism 2. The reinforcing mechanism 2 is used to reinforce the U-shaped steel 1 of the assembled arched tunnel support. The reinforcing mechanism 2 includes a connecting component 21 and a supporting component 22. The connecting component 21 includes a connector 211 and screws 212. The connector 211 is used to engage with the steel body edges on both sides of the U-shaped steel 1. The screws 212 are disposed at both ends of the connector 211 and threadedly connected to the U-shaped steel 1. A fixing plate 8 is fixed to the top of the connector 211, and the fixing plate 8 is used to strengthen the supporting strength of the connector 211 structure.

[0025] The support assembly 22 is used to reinforce the middle section of the connector 211. The support assembly 22 includes a first support unit 221 and a first reinforcement unit 222. The first support unit 221 includes a mounting plate 2211, a support column 2212, and a block 2213. The mounting plate 2211 is fixed to the bottom of the connector 211, and the support column 2212 is fixed to the bottom of the mounting plate 2211. The block 2213 is fixed to the lower end of the support column 2212, and the bottom of the block 2213 is in contact with the inner wall of the U-shaped steel 1. The first reinforcement unit 222 is used to reinforce the first support unit 221, and two sets are provided and symmetrically distributed about the support column 2212. The first reinforcement unit 222 includes a U-shaped plate 2221, a clamp 2222, a reinforcing rib 2223, a support plate 2224, and a screw 2225. The U-shaped plate 2221 is located at the bottom of the connector 211, and the cross-section of the U-shaped plate 2221 is U-shaped. A clamp 2222 is fitted onto a support column 2212, with its top abutting against the bottom of a mounting plate 2211. A reinforcing rib 2223 is fixed to the side of the clamp 2222 away from the support column 2212. A support plate 2224 is positioned on top of the reinforcing rib 2223. A threaded rod 2225 passes through the support plate 2224 and has a clearance fit with it. The threaded rod 2225 is threadedly connected to a U-shaped plate 2221. A first nut 3 is threadedly connected to the threaded rod 2225, with its top abutting against the bottom of the support plate 2224. A bolt 4 with a clearance fit passes through the clamp 2222, with a first nut 41 threadedly connected to it. The first nut 41 abuts against the clamp 2222.

[0026] In this embodiment, a limiting ring 5 is fixedly sleeved on the support column 2212, and the top of the limiting ring 5 abuts against the bottom of the clamp 2222.

[0027] When workers need to reinforce the U-shaped steel 1, they place the plate connector 211 in the corresponding position, then bend both ends of the plate connector 211 with tools to engage with the steel body edges on both sides of the U-shaped steel 1. Next, they fix the connector 211 to the U-shaped steel 1 with screws 212. Workers then use the threaded engagement of the screw 2225 with the U-shaped plate 2221 to initially position the clamp 2222. They then connect the first nut 41 to the bolt 4 with tools to fix the two clamps 2222. Finally, they thread the first nut 3 onto the screw 2225. When the U-shaped steel 1 is subjected to external pressure, it transmits the pressure to the connector 211. The connector 211 deforms under the pressure, and the connector 211 transmits the pressure to the inner wall of the U-shaped steel 1 through the mounting plate 2211, support column 2212, and block 2213, thereby enhancing the reinforcement effect of the connector 211 on the U-shaped steel 1. Meanwhile, the first reinforcing unit 222 further enhances the stability of the connector 211, provides support for other parts of the connector 211, and shares the pressure on the connector 211. At the same time, the limiting ring 5 on the support column 2212 cooperates with the mounting plate 2211 to form a two-way limit on the clamp 2222, preventing the clamp 2222 from shifting due to force.

[0028] In this embodiment, a fixing component 7 is provided at the joint of two adjacent U-shaped steels 1. Multiple sets of fixing components 7 are provided, each set including a clamp 71, a U-shaped connecting rod 72, a threaded rod 73, and a threaded cap 74. The clamp 71 is located at the bottom of the U-shaped steel 1 and fits snugly, while the U-shaped connecting rod 72 is located at the top of the U-shaped steel 1 and fits snugly. Two threaded rods 73 are fixed to the lower end of the U-shaped connecting rod 72 and are symmetrically distributed, passing through the clamp 71 with a clearance fit. The threaded cap 74 is threadedly connected to the threaded rod 73. When workers need to fix the joints of multiple U-shaped steels 1, they only need to fit the top of the clamp 71 against the bottom of the U-shaped steel 1, then pass the threaded rods 73 at both ends of the U-shaped connecting rod 72 through both ends of the clamp 71, and finally connect the threaded cap 74 to the threaded rod 73 using a tool, thereby achieving the fixing between two adjacent U-shaped steels 1. Example

[0029] like Figure 6-10As shown, the difference between this embodiment and Embodiment 1 lies only in that the support component 22 includes a second support unit 223 and a second reinforcing unit 224. The second support unit 223 includes an arc-shaped plate 2231 and an arc-shaped connecting plate 2232. The arc-shaped plate 2231 is fixed to the top of the connector 211, and the arc-shaped connecting plate 2232 is fixed to the side walls of the arc-shaped plate 2231. The second reinforcing unit 224 is used to reinforce the second support unit 223. Two sets of the second reinforcing units 224 are provided and symmetrically distributed about the arc-shaped plate 2231. The second reinforcing unit 224 includes a fixing block 2241 and a long rod 2242. The fixing block 2241 is provided on the inner wall of the U-shaped steel 1, and the long rod 2242 is provided through the arc-shaped connecting plate 2232. In this embodiment, a slot 22411 is provided on the top of the fixing block 2241 for the insertion of the long rod 2242. A limiting block 22421 is provided at the top of the long rod 2242, and the limiting block 22421 abuts against the arc-shaped connecting plate 2232. A second nut 22422 is fitted on the long rod 2242 and threadedly connected thereto, and the top of the second nut 22422 abuts against the bottom of the arc-shaped connecting plate 2232. A threaded hole 22423 is provided at the lower end of the long rod 2242, and an opening 22412 is provided at the position corresponding to the threaded hole 22423 on the fixing block 2241. The opening 22412 communicates with the slot 22411, and a stud 6 is provided on the opening 22412 and threadedly connected to the threaded hole 22423.

[0030] The workers inserted the long rod 2242 into the arc-shaped connecting plate 2232, then put the second nut 22422 onto the long rod 2242, and inserted the long rod 2242 into the slot 22411, so that the threaded hole 22423 corresponds to the opening 22412 of the fixing block 2241. The workers used tools to fix the stud 6 and the second nut 22422 respectively, thereby strengthening the fixing effect of the arc-shaped connecting plate 2232 and the arc-shaped plate 2231, thereby strengthening the support effect of the connector 211 on the U-shaped steel 1 and improving the stability of the U-shaped steel 1.

[0031] In this embodiment, both fixing blocks 2241 are provided with weight-reducing holes 22413. The weight-reducing holes 22413 reduce the production cost of materials, reduce their own weight, and improve the efficiency of subsequent handling by workers.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A limiting structure for splicing arched supports, characterized in that: The reinforcement mechanism (2) includes a reinforcement mechanism for reinforcing the U-shaped steel (1) used to assemble the arched tunnel support. The reinforcement mechanism (2) includes a connecting component (21), which includes a connector (211) that engages with the steel body edges on both sides of the U-shaped steel (1) and a screw (212) that passes through both ends of the connector (211) and is threadedly connected to the U-shaped steel (1). The reinforcement mechanism (2) also includes a support component (22) for reinforcing the middle section of the connector (211).

2. The limiting structure for splicing arched supports according to claim 1, characterized in that: The support assembly (22) includes a first support unit (221), which includes a mounting plate (2211) fixed to the bottom of the connector (211), a support column (2212) fixed to the bottom of the mounting plate (2211), and a block (2213) fixed to the lower end of the support column (2212). The bottom of the block (2213) is in contact with the inner wall of the U-shaped steel (1). The support assembly (22) also includes a first reinforcing unit (222) for reinforcing the first support unit (221).

3. The limiting structure for splicing arched supports according to claim 2, characterized in that: The first reinforcement unit (222) is provided in two sets and symmetrically distributed about the support column (2212). Each set of the first reinforcement unit (222) includes a U-shaped plate (2221) at the bottom of the connector (211), a clamp (2222) sleeved on the support column (2212), a reinforcing rib (2223) fixed to the side of the clamp (2222) away from the support column (2212), a support plate (2224) at the top of the reinforcing rib (2223), and a screw rod that passes through the support plate (2224) and is clearance-fitted to the support plate (2224). 2225), the screw (2225) is threadedly connected to the U-shaped plate (2221), the screw (2225) is provided with a first nut (3) threadedly connected to it, the top of the first nut (3) abuts against the bottom of the support plate (2224), the clamp (2222) is provided with a bolt (4) with clearance fit, the bolt (4) is provided with a first nut (41) threadedly connected to it, and the first nut (41) abuts against the clamp (2222), the top of the clamp (2222) abuts against the bottom of the mounting plate (2211).

4. The limiting structure for splicing arched supports according to claim 3, characterized in that: A limiting ring (5) is fixedly sleeved on the support column (2212), and the top of the limiting ring (5) abuts against the bottom of the clamp (2222).

5. The limiting structure for splicing arched supports according to claim 1, characterized in that: The support assembly (22) includes a second support unit (223), which includes an arc-shaped plate (2231) fixed to the top of the connector (211) and arc-shaped connecting plates (2232) fixed to the side walls of the arc-shaped plate (2231). The support assembly (22) also includes a second reinforcing unit (224) for reinforcing the second support unit (223).

6. The limiting structure for splicing arched supports according to claim 5, characterized in that: The second reinforcement unit (224) is provided in two sets and symmetrically distributed about the arc-shaped plate (2231). Each set of the second reinforcement unit (224) includes a fixing block (2241) set on the inner wall of the U-shaped steel (1) and a long rod (2242) that passes through the arc-shaped connecting plate (2232). The top of the fixing block (2241) is provided with a slot (22411) for inserting the long rod (2242). The top of the long rod (2242) is provided with a limiting block (22421). The limiting block (22421) abuts against the arc-shaped connecting plate (2232). The long rod (2242) is fitted with a second nut (22422) that is threadedly connected to it. The top of the second nut (22422) abuts against the bottom of the arc-shaped connecting plate (2232). The lower end of the long rod (2242) is provided with a threaded hole (22423). The fixing block (2241) is provided with an opening (22412) at the position corresponding to the threaded hole (22423). The opening (22412) communicates with the slot (22411). The opening (22412) is provided with a stud (6) that is threadedly connected to the threaded hole (22423).

7. A limiting structure for splicing arched supports according to claim 6, characterized in that: Both of the fixing blocks (2241) are provided with weight reduction holes (22413).

8. The limiting structure for splicing arched supports according to claim 1, characterized in that: The joints of two adjacent U-shaped steels (1) are connected by a fixing component (7). The fixing component (7) is provided in multiple sets. Each set of the fixing component (7) includes a clamp (71) set at the bottom of the U-shaped steel (1) and fitted, a U-shaped connecting rod (72) set at the top of the U-shaped steel (1) and fitted, and a threaded rod (73) fixed to the lower end of the U-shaped connecting rod (72). There are two threaded rods (73) and they are symmetrically distributed. The threaded rod (73) passes through the clamp (71) and is clearance-fitted. The fixing component (7) also includes a threaded cap (74) that is threadedly connected to the threaded rod (73).

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