Underground steel plate pavement fixing assembly easy to disassemble and assemble

Abstract

The utility model relates to an underground steel plate pavement fixing assembly easy to disassemble and assemble. An existing pavement steel plate foundation bolt is not firm, and rubber-tyred vehicle tires are prone to being damaged, so that the underground steel plate pavement fixing assembly easy to disassemble and assemble comprises a threaded anchor rod, a disc-shaped nut, a disassembling and assembling wrench, a connecting screw rod, a rubber plug and a locking nut, the disc-shaped nut is in a disc shape, the middle of the disc-shaped nut protrudes upwards, and a threaded through hole is formed in the center of the disc-shaped nut; when the disc-shaped nut is rotationally sleeved at the outer end of the threaded anchor rod through the spiral through hole of the disc-shaped nut, the rubber plug can plug an upper opening of the spiral through hole, two or four clamping holes are further formed in the outer edge of the disc-shaped nut, the dismounting wrench comprises a longitudinal rod and two clamping rods perpendicularly fixed to the longitudinal rod, and the two clamping rods can be clamped into the clamping holes in the two sides of the threaded through hole at the same time. A sleeve hole is formed in the longitudinal rod between the two clamping rods, external threads are arranged at the upper portion and the lower end of the connecting screw rod respectively, and the inner wall of a threaded through hole of the disc-shaped nut extends downwards to form a downward extending pipe. The tire fixing device is firm in fixation, does not damage tires and is suitable for underground coal mines.

Description

TECHNICAL FIELD

[0001] The utility model relates to an easy-to-disassemble underground steel plate pavement fixing assembly. BACKGROUND

[0002] Underground coal mine rubber wheel vehicle transportation pavement is damaged frequently after long-term heavy load rolling, especially after the installation and removal of transportation hydraulic support at the working face. Currently, gravel and steel plate are generally used to pad to ensure the continuous operation of vehicles. The steel plate is not generally fixed when being padded, heavy equipment often passes through, which easily causes the steel plate to warp and shift, and the damaged pavement cannot be completely covered, which still affects the operation of vehicles, and seriously causes the safety of vehicle operation. If ordinary foundation bolts are used for fixation, the strength is limited and the bolts are easily damaged. If the anchor rod commonly used underground is used as a foundation bolt, the anchor rod head and the matching nut are exposed during use, which easily damages the tire of the underground rubber wheel vehicle. When the steel plate of the pavement needs to be removed, the foundation bolt is often rusted and difficult to disassemble and assemble. SUMMARY

[0003] The utility model solves the technical problem of how to overcome the above-mentioned defects of the prior art and provides an easy-to-disassemble underground steel plate pavement fixing assembly.

[0004] To solve the above technical problems, the easy-to-disassemble underground steel plate pavement fixing assembly comprises a threaded anchor rod, and the outer end of the threaded anchor rod is provided with external threads. The easy-to-disassemble underground steel plate pavement fixing assembly is characterized in that it further comprises a disc-shaped nut, a disassembly wrench, a connecting screw rod, a rubber plug, and a locking nut. The disc-shaped nut is in the shape of a disc, the middle part of the disc-shaped nut is upwardly convex, and a threaded through hole is formed in the center of the disc-shaped nut. The internal threads of the threaded through hole are engaged with the external threads of the threaded anchor rod. When the disc-shaped nut is screwed onto the outer end of the threaded anchor rod through the threaded through hole, the rubber plug can be plugged into the upper opening of the threaded through hole. Two or four clamping holes are further formed on the outer edge of the disc-shaped nut. The clamping holes are uniformly distributed around the axis of the threaded through hole. The disassembly wrench comprises a longitudinal rod and two clamping rods which are vertically fixed on the longitudinal rod. The two clamping rods can be simultaneously clamped into the clamping holes on both sides of the threaded through hole. A sleeve hole is formed in the longitudinal rod between the two clamping rods. The upper part and the lower end of the connecting screw rod are respectively provided with external threads. The external threads at the lower end of the connecting screw rod can be screwed into the threaded through hole of the disc-shaped nut, and the upper part of the connecting screw rod can pass through the sleeve hole. The internal threads of the locking nut can be engaged with the external threads of the upper part of the connecting screw rod and can be screwed onto the external threads of the upper part of the connecting screw rod, so as to fix the two clamping rods of the disassembly wrench in the clamping holes. The inner wall of the threaded through hole of the disc-shaped nut extends downward to form a downward tube.

[0005] In use, a plurality of vertical downward drill holes 14 are drilled in the corresponding positions of the mine floor 13 where the road surface steel plates 12 are to be installed, so that the drill holes 14 correspond to the fixing holes 15 of the road surface steel plates 12 one by one, and then the anchor agent 16 is added into each drill hole 14, and then the threaded anchor rod 1 is inserted into each drill hole 14 (the insertion depth is that the lower end of the connecting screw rod 4 can still be screwed into the threaded through hole 7 of the disc nut 2 after installation), and then the road surface steel plate 12 is laid, so that each fixing hole 15 of the road surface steel plate 12 is sleeved on the corresponding threaded anchor rod 1, and then a disc nut 2 is screwed on each threaded anchor rod 1, respectively. Then the dismounting wrench 3 is taken out, the two clamping rods 32 of the dismounting wrench 3 are inserted into the symmetrical clamping holes 8 on both sides of the threaded through hole 7 of the disc nut 2, respectively, and then the longitudinal rod 31 of the dismounting wrench 3 is pulled to tighten the disc nut 2, and then the dismounting wrench 3 is removed, and finally the rubber plug 5 is inserted into the threaded through hole 7, as shown in Figure 1 .

[0006] In this way, on the one hand, the coal slurry can be prevented from entering the threaded through hole 7, and on the other hand, the threaded anchor rod 1 is not exposed, and the disc nut 2 has no protruding corners, so that the tire of the underground rubber-tyred vehicle is not easily damaged when passing.

[0007] When it is necessary to be removed, the rubber plug 5 is pried out by a awl or a screwdriver, and then the lower end of the connecting screw rod 4 is screwed into the threaded through hole 7, so that the connecting screw rod 4 is connected with the disc nut 2, and then the dismounting wrench 3 is taken out, the sleeve hole 33 of the dismounting wrench 3 is sleeved on the upper part of the connecting screw rod 4, and the two clamping rods 31 of the dismounting wrench 3 are inserted into the symmetrical clamping holes 8 on both sides of the threaded through hole 7 of the disc nut 2, respectively, and then the locking nut 6 is screwed on the connecting screw rod 1, so as to firmly fix the two clamping rods 31 of the dismounting wrench 3 in the two clamping holes 8 of the disc nut 2, as shown in Figure 2 , and then the longitudinal rod 31 of the dismounting wrench 3 is pulled to unscrew the disc nut 2 from the threaded anchor rod 1. In this way, the dismounting is labor-saving and convenient.

[0008] As an optimization, the locking nut is also provided with a circular ring, the locking nut is located at the center below the circular ring, and the outer circumferential wall of the locking nut and the circular ring are provided with a plurality of uniformly distributed inclined connecting rods. In this way, the locking nut is convenient and labor-saving when being tightened or loosened.

[0009] The underground steel plate road surface fixing assembly is firm in fixing, convenient in dismounting, has no protruding corners, and does not damage the tire of the rubber-tyred vehicle when passing, and is suitable for use in coal mine underground. BRIEF DESCRIPTION OF DRAWINGS

[0010] The easy-to-dismount underground steel plate road surface fixing assembly will be further described below with reference to the drawings:

[0011] Figure 1This is a schematic diagram of the threaded anchor bolts and disc nuts of the easily disassembled underground steel plate road surface fixing component in use.

[0012] Figure 2 Disassembly and assembly are performed using a disassembly wrench, connecting screw, and locking nut. Figure 1 A schematic diagram of the disc nut in its usage state is shown.

[0013] Figure 3 yes Figure 2 The exploded structure diagram of the easily disassembled underground steel plate road surface fixing component is shown below.

[0014] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the easily detachable underground steel plate road surface fixing assembly (cut along a vertical plane passing through the center line of the clamp).

[0015] In the diagram: 1 is a threaded anchor rod, 2 is a disc nut, 3 is a disassembly wrench, 31 is a longitudinal rod, 32 is a clamping rod, 33 is a sleeve hole, 4 is a connecting screw, 5 is a rubber plug, 6 is a locking nut, 7 is a threaded through hole, 8 is a clamping hole, 9 is a lower extension tube, 10 is a circular wrist ring, 11 is a diagonal connecting rod, 12 is a matching road surface steel plate, 13 is a mine bottom plate, 14 is a drill hole, 15 is a fixing hole, and 16 is an anchoring agent. Detailed Implementation

[0016] Implementation method one: such as Figures 1-4 As shown, this easily detachable underground steel plate road surface fixing assembly includes a threaded anchor rod 1 with an external thread at its outer end. Its distinguishing feature is that it further includes a disc nut 2, a disassembly wrench 3, a connecting screw 4, a rubber plug 5, and a locking nut 6. The disc nut 2 is disc-shaped, with its central portion bulging upwards, and a threaded through hole 7 is formed in its center. The internal thread of this threaded through hole 7 engages with the external thread of the threaded anchor rod 1. When the disc nut 2 is screwed onto the outer end of the threaded anchor rod 1 through its helical through hole 7, the rubber plug 5 can block the upper opening of the helical through hole 7. Figure 1 As shown. The outer edge of the disc nut 2 is also provided with two or four locking holes 8, which are evenly distributed around the axis of the threaded through hole 7. The disassembly and assembly wrench 3 includes a longitudinal rod 31 and two locking rods 32 vertically fixed on the longitudinal rod 31. The two locking rods 32 can be simultaneously locked into the locking holes 8 on both sides of the threaded through hole 7. The longitudinal rod 31 between the two locking rods 31 has a sleeve hole 33. The upper and lower ends of the connecting screw 4 are respectively provided with external threads. The lower external thread can be screwed into the threaded through hole 7 of the disc nut 2, and the upper part can be inserted through the sleeve hole 33. The internal thread of the locking nut 2 can mesh with the external thread of the upper part of the connecting screw 4 and can be screwed onto the external thread of the upper part of the connecting screw 4, thereby fixing the two locking rods 32 of the disassembly and assembly wrench 3 in the locking holes 8 respectively. The inner wall of the threaded through hole 7 of the disc nut 2 extends downward into a lower extension tube 9.

[0017] The locking nut 6 is also provided with a circular ring 10, the locking nut 6 is located below the center of the circular ring 10, and the outer circumferential wall of the locking nut 6 and the circular ring 10 are provided with a plurality of uniformly distributed inclined connecting rods 11.

Claims

1. A detachable downhole steel plate pavement fixing assembly comprising a threaded anchor rod, an outer end of which is provided with an external thread, characterized in that: It also includes a disc nut, a dismounting wrench, a connecting screw, a rubber plug and a locking nut. The disc nut is in the shape of a disc with a raised middle and a threaded hole in the center. The inner thread of the threaded hole is engaged with the outer thread of the threaded anchor rod. When the disc nut is screwed onto the outer end of the threaded anchor rod, the rubber plug can be plugged into the threaded hole at the top. The outer edge of the disc nut is provided with two or four clamping holes which are evenly distributed around the axis of the threaded hole. The dismounting wrench includes a longitudinal rod and two clamping rods which are vertically fixed on the longitudinal rod. The two clamping rods can be clamped into the clamping holes on both sides of the threaded hole. A sleeve hole is opened in the longitudinal rod between the two clamping rods. The upper and lower ends of the connecting screw are provided with outer threads. The lower end of the connecting screw is screwed into the threaded hole of the disc nut, and the upper end of the connecting screw can pass through the sleeve hole. The inner thread of the locking nut is engaged with the outer thread of the upper end of the connecting screw, and the locking nut is screwed onto the outer thread of the upper end of the connecting screw, so as to fix the two clamping rods of the dismounting wrench in the clamping holes. The inner wall of the threaded hole of the disc nut extends downward to form a downward tube.

2. The detachable downhole steel plate pavement fixing assembly according to claim 1, characterized in that: The locking nut is also provided with a circular ring. The locking nut is located at the center below the circular ring, and the outer circumferential wall of the locking nut and the circular ring are provided with a plurality of evenly distributed inclined connecting rods.

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