阅读说明：本技术 一种煤矿巷道用地下内壁支护装置 (Underground inner wall supporting device for coal mine tunnel ) 是由 金志远 徐佑林 许猛堂 周泽 于 2020-06-23 设计创作，主要内容包括：本发明涉及煤矿巷道支护技术领域,具体的说是一种煤矿巷道用地下内壁支护装置,包括第一滑轨、第二滑轨、安装机构、挤压机构、支护机构、锚固机构和限位机构；将支护机构设于第一滑轨和第二滑轨的顶部,通过相应的齿轮丝杆传动组件驱动支护机构的升降,方便对巷道顶部的支护,同时也便于对支护机构进行移动；将锚固机构设于第一滑轨两侧的顶部,通过相应的可拆卸锚杆对巷道进行锚固,同时,通过相应的柔性连接方式,方便对锚杆的偏移进行查看；使用时,将限位机构安置于锚固机构上,通过相应的齿条限位结构,从而方便对锚固机构进行限位,使得避免锚固机构产生偏移或松动,保证相应的锚固效果。(The invention relates to the technical field of coal mine roadway support, in particular to an underground inner wall supporting device for a coal mine roadway, which comprises a first slide rail, a second slide rail, an installation mechanism, an extrusion mechanism, a supporting mechanism, an anchoring mechanism and a limiting mechanism, wherein the first slide rail is arranged on the first side of the supporting mechanism; the supporting mechanism is arranged at the tops of the first sliding rail and the second sliding rail, and the lifting of the supporting mechanism is driven through the corresponding gear screw transmission assembly, so that the top of the roadway is conveniently supported, and the supporting mechanism is conveniently moved; the anchoring mechanisms are arranged at the tops of the two sides of the first sliding rail, the roadway is anchored through corresponding detachable anchor rods, and meanwhile, the offset of the anchor rods is conveniently checked through a corresponding flexible connection mode; during the use, settle stop gear on anchor mechanism, through corresponding rack limit structure to the convenience is spacing to anchor mechanism, makes to avoid anchor mechanism to produce the skew or not hard up, guarantees corresponding anchor effect.)

1. The underground inner wall supporting device for the coal mine roadway is characterized by comprising a first sliding rail (1), a second sliding rail (2), an installing mechanism (3), an extruding mechanism (4), a supporting mechanism (5), an anchoring mechanism (6) and a limiting mechanism (7), wherein the first sliding rail (1) and the top of the second sliding rail (2) are used for facilitating the movement of the device, the supporting mechanism (5) is used for supporting the top end of the roadway, the installing mechanism (3) is used for fixing the device, the extruding mechanism (4) is arranged in the middle of one side of the second sliding rail (2), the anchoring mechanism (6) is used for further fixing the device, the two sides of the top end of the first sliding rail (1) are provided with the anchoring mechanism (6) used for anchoring the side wall of the roadway, the anchoring mechanism (6) is provided with a limiting mechanism (7) for limiting the clamping of the anchoring mechanism (6).

2. The underground wall supporting device for the coal mine tunnel according to claim 1, which is characterized in that: installation mechanism (3) are including mounting panel (31) and bolt (32), first slide rail (1) with the both sides of second slide rail (2) all are connected with one respectively mounting panel (31), the middle part of mounting panel (31) is equipped with bolt (32).

3. The underground wall supporting device for the coal mine tunnel according to claim 1, which is characterized in that: extrusion mechanism (4) are including settling frame (41), reinforcing block (42) and cylinder (43), second slide rail (2) deviate from the middle part of first slide rail (1) one side is fixed with settle frame (41), settle the inside one end of frame (41) and install cylinder (43), the one end of cylinder (43) is connected with reinforcing block (42), reinforcing block (42) block in settle the inside of frame (41).

4. The underground wall supporting device for the coal mine tunnel according to claim 1, which is characterized in that: the supporting mechanism (5) comprises a first supporting rod (51), a top plate (52), a second supporting rod (53), a handle (54), a first gear (55), a second gear (56), a first screw rod (57), a lifting block (58), a second screw rod (59) and a knob (59a), wherein one second supporting rod (53) is clamped on each of two sides of the first sliding rail (1), one first supporting rod (51) is clamped on each of two sides of the second sliding rail (2), the top plate (52) is arranged on the tops of the second supporting rod (53) and the first supporting rod (51) which are positioned on the same side of the first sliding rail (1) and the second sliding rail (2), the lifting block (58) is connected inside the top ends of the first supporting rod (51) and the second supporting rod (53) in a sliding mode, the top of the lifting block (58) is connected to the bottom of the top plate (52), be equipped with on the lateral wall that first branch (51) are close to the bottom and be the zigzag handle (54), handle (54) one end extends to the inside of first branch (51) and be connected with first gear (55), the bottom meshing of first gear (55) has second gear (56), the middle part of second gear (56) is fixed with first screw rod (57), first screw rod (57) are close to the lateral wall screw thread on top and connect in inside first branch (51) elevator block (58), the middle part of second slide rail (2) one side is equipped with knob (59a), the one end of knob (59a) is connected with second screw rod (59), the one end of second screw rod (59) extends to inside and the threaded connection of second slide rail (2) in the inside of two first branch (51), meanwhile, the thread directions of the two ends of the second screw rod (59) are opposite.

5. The underground wall supporting device for the coal mine tunnel according to claim 1, which is characterized in that: the anchoring mechanism (6) comprises a mounting block (61), a clamping block (62), an auger (63), a clamping plate (64), a guide rod (65) and a first spring (66), the top parts of the two ends of the first sliding rail (1) are respectively fixed with one placing block (61), the periphery of one side of the arrangement block (61) is respectively fixed with one guide rod (65), the four guide rods (65) are clamped on the periphery of the clamping plate (64) together, the guide rod (65) is wound with the first spring (66), one end of the first spring (66) is connected with the side wall of the clamping plate (64), the other end of the first spring (66) is connected to a side wall of the seating block (61), the middle part of one side of the clamping plate (64) is provided with the clamping block (62), one end of the clamping block (62) is connected with the spiral drill (63), the auger (63) passes through the catch plate (64) and the setting block (61).

6. The underground wall supporting device for the coal mine tunnel according to claim 5, wherein: the limiting mechanism (7) comprises a fixing plate (71), a sliding block (72), a toothed plate (73), a fixing barrel (74), a limiting rod (75) and a second spring (76), wherein two ends of one side of the mounting block (61) are respectively fixed with one fixing plate (71), two opposite sides of the clamping plate (64) are respectively fixed with one sliding block (72), the sliding block (72) is clamped in the inner part of one side of the fixing plate (71), one side of the sliding block (72) departing from the clamping plate (64) is connected with the toothed plate (73), the toothed plate (73) is clamped in the inner part of the fixing plate (71), one opposite sides of the two fixing plates (71) are respectively fixed with one fixing barrel (74), the limiting rod (75) is arranged in the fixing barrel (74), and the limiting rod (75) penetrates through the fixing plate (71) and is clamped in one side of the toothed plate (73), the limiting rod (75) is located the second spring (76) is wound on the side wall inside the fixing plate (71), one end of the second spring (76) is connected to the side wall of the limiting rod (75), and the other end of the second spring (76) is fixed to the inner wall of the fixing plate (71).

Technical Field

The invention relates to the technical field of coal mine roadway support, in particular to an underground inner wall supporting device for a coal mine roadway.

Background

As a traditional energy source, coal always occupies a great proportion in national economy of China. Along with the construction of modern mines, the important point of safety problem is to ensure the safety and smoothness of the roadway when dealing with various underground geological environments. Various roadways exist in coal mines, and the names of the various roadways are numerous, such as a main roadway, a return airway, a transportation roadway, an auxiliary roadway and the like. The main functions of the main roadway are ventilation and transportation, the return airway is used for tunneling and exploitation, the return air of the coal face is used, the transportation drift is used as the drift for transportation, the auxiliary roadway is used as the auxiliary roadway of the mining area, and the roadways guarantee the normal operation of underground work. How to protect the roadway using different supports is therefore the first requirement to ensure safe production from the mine.

In the in-service use process, when the inner wall in tunnel needs to be anchored, in long-term anchor in-process, because influences such as the inside change of ground, it is not hard up just probably to produce the skew to dismantle the stock, influence the effect of anchor, especially still be difficult to perceive, when strutting the top in tunnel simultaneously, because the height of tunnel each probably is different, thereby be difficult to carry out fine support to the top in tunnel each, it is further, also inconvenient when using to strut the top in tunnel and adjust the removal.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an underground inner wall supporting device for a coal mine tunnel.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a colliery tunnel underground inner wall supporting device, includes first slide rail, second slide rail, installation mechanism, extrusion mechanism, support mechanism, anchor mechanism and stop gear for make things convenient for the device to remove first slide rail and the top of second slide rail is equipped with and is used for supporting the tunnel top support mechanism, first slide rail with the both sides of second slide rail are equipped with and are used for fixing the device installation mechanism, the middle part of second slide rail one side is equipped with and is used for further fixing the device extrusion mechanism, the both sides on first slide rail top are equipped with and are used for carrying out the anchor to the tunnel lateral wall anchor mechanism, it is right to be equipped with in the anchor mechanism carries out the block spacing stop gear.

Specifically, installation mechanism includes mounting panel and bolt, first slide rail with the both sides of second slide rail all are connected with one respectively the mounting panel, the middle part of mounting panel is equipped with the bolt.

Specifically, extrusion mechanism is including settling the frame, reinforcing block and cylinder, the second slide rail deviates from the middle part of first slide rail one side is fixed with settle the frame, settle the inside one end of frame and install the cylinder, the one end of cylinder is connected with reinforcing block, reinforcing block in settle the inside of frame.

Specifically, the supporting mechanism comprises a first supporting rod, a top plate, a second supporting rod, a handle, a first gear, a second gear, a first screw rod, a lifting block, a second screw rod and a knob, wherein one second supporting rod is clamped on two sides of the first sliding rail respectively, one first supporting rod is clamped on two sides of the second sliding rail respectively, the top plate is arranged on the tops of the second supporting rod and the first supporting rod which are positioned on the same side of the first sliding rail and the second sliding rail, the lifting block is connected inside the top ends of the first supporting rod and the second supporting rod in a sliding manner, the top of the lifting block is connected to the bottom of the top plate, the handle is arranged on the side wall of the first supporting rod close to the bottom end, one end of the handle extends to the inside of the first supporting rod and is connected with the first gear, the bottom end of the first gear is meshed with the second gear, the middle part of second gear is fixed with first screw rod, the lateral wall threaded connection that first screw rod is close to the top in first branch inside the elevator, the middle part of second slide rail one side is equipped with the knob, the one end of knob is connected with the second screw rod, the one end of second screw rod extends to inside and threaded connection of second slide rail is in two the inside of first branch, simultaneously the screw thread opposite direction at second screw rod both ends.

Specifically, the anchoring mechanism comprises a mounting block, a fixture block, an auger, a clamping plate, guide rods and a first spring, wherein the top of each of two ends of the first slide rail is respectively fixed with one mounting block, the periphery of one side of each mounting block is respectively fixed with one guide rod, the four guide rods are clamped around the clamping plate together, the first spring is wound on each guide rod, one end of each first spring is connected to the side wall of the clamping plate, the other end of each first spring is connected to the side wall of the mounting block, the fixture block is arranged in the middle of one side of the clamping plate, one end of each fixture block is connected with the auger, and the auger penetrates through the clamping plate and the mounting block.

Specifically, the limiting mechanism comprises a fixed plate, a sliding block, a toothed plate, a fixed cylinder, a limiting rod and a second spring, the two ends of one side of the mounting block are respectively fixed with one fixing plate, the two opposite sides of the clamping plate are respectively fixed with one sliding block, the slide block is clamped inside one side of the fixed plate, one side of the slide block, which is far away from the clamping plate, is connected with the toothed plate, the toothed plate is clamped inside the fixed plates, one side of each fixed plate, which is opposite to the other side, is respectively fixed with one fixed cylinder, the limiting rod is arranged in the fixed cylinder, penetrates through the fixed plate and is clamped on one side of the toothed plate, the limiting rod is located the winding has on the inside lateral wall of fixed plate the second spring, the one end of second spring connect in the lateral wall of limiting rod, the other end of second spring is fixed in the inner wall of fixed plate.

The invention has the beneficial effects that:

(1) when the underground inner wall supporting device for the coal mine tunnel is used, the supporting mechanism is arranged at the tops of the first sliding rail and the second sliding rail, and the supporting mechanism is driven to lift through the corresponding gear screw rod transmission assembly, so that the top of the tunnel is conveniently supported, and the supporting mechanism is also conveniently moved; namely: when the top in tunnel is strutted to needs, the user can manually rotate the knob earlier, the knob rotates and drives the second screw rod to rotate, the second screw rod rotates and drives two first branches in the inside of second slide rail or back to back movement in opposite directions, and then drive the removal that two roof make a round trip, thereby conveniently adjust the position of roof, then, the user can manually rotate the handle, the handle rotates and drives first gear revolve, first gear revolve drives second gear revolve, second gear revolve drives first screw rod revolve, first screw rod revolve and drive the elevator and go up and down inside first branch, and then drive the roof and go up and down, thereby be applicable to the not tunnel of co-altitude, make the convenience carry out better strutting to the tunnel top.

(2) When the underground inner wall supporting device for the coal mine tunnel is used, the anchoring mechanisms are arranged at the tops of the two sides of the first sliding rail, the tunnel is anchored through the corresponding detachable anchor rods, and meanwhile, the offset of the anchor rods is conveniently checked through the corresponding flexible connection mode; namely: during the use, the user can adopt corresponding handheld spiral drilling machine to insert the fixture block, drive the fixture block and rotate, the fixture block rotates and drives the spiral drilling and creeps into, make the spiral drilling continuous creep into the lateral wall inside the tunnel, conveniently realize the anchor in tunnel and strut, it is further, when the continuous drilling of spiral drilling, drive the cardboard and continuously move on the guide arm, make first spring shrink, when the spiral drilling takes place to deflect or not hard up, first spring will carry out partial resilience, make the guide arm stretch out the distance of cardboard and change simultaneously, thereby the skew of conveniently checking the spiral drilling.

(3) When the underground inner wall supporting device for the coal mine tunnel is used, the limiting mechanism is arranged on the anchoring mechanism, and the corresponding rack limiting structure is used for conveniently limiting the anchoring mechanism, so that the anchoring mechanism is prevented from deviating or loosening, and the corresponding anchoring effect is ensured; namely: when the cardboard removed, drive the slider, and then drive the pinion rack and remove, along with the continuous removal of pinion rack, can be continuous extrudees the gag lever post, the continuous shrink of second spring simultaneously, after the anchor of accomplishing the auger, the gag lever post can carry out the block spacing to the pinion rack under the resilience force of second spring, simultaneously because the tooth on the pinion rack is the skewed tooth form, and then prevent the pinion rack to remove towards opposite direction, thereby avoid the auger to produce the skew or not hard up, make and to guarantee corresponding anchor effect.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of an overall structure of a preferred embodiment of an underground inner wall supporting device for a coal mine tunnel according to the present invention;

FIG. 2 is a schematic view of a connection structure between the anchoring mechanism and the limiting mechanism shown in FIG. 1;

fig. 3 is a schematic view of a connection structure of the second slide rail and the supporting mechanism shown in fig. 1;

FIG. 4 is a schematic structural view of the pressing mechanism shown in FIG. 1;

FIG. 5 is an enlarged view of the part A shown in FIG. 1;

FIG. 6 is an enlarged view of the structure of the portion B shown in FIG. 1;

fig. 7 is an enlarged view of the structure of the portion C shown in fig. 2.

In the figure: 1. the device comprises a first slide rail, 2, a second slide rail, 3, an installation mechanism, 31, an installation plate, 32, a bolt, 4, an extrusion mechanism, 41, a mounting frame, 42, a reinforcing block, 43, an air cylinder, 5, a supporting mechanism, 51, a first supporting rod, 52, a top plate, 53, a second supporting rod, 54, a handle, 55, a first gear, 56, a second gear, 57, a first screw rod, 58, a lifting block, 59, a second screw rod, 59a, a knob, 6, an anchoring mechanism, 61, a mounting block, 62, a clamping block, 63, an auger, 64, a clamping plate, 65, a guide rod, 66, a first spring, 7, a limiting mechanism, 71, a fixing plate, 72, a sliding block, 73, a toothed plate, 74, a fixing cylinder, 75, a limiting rod, 76 and a second spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the underground inner wall supporting device for the coal mine roadway comprises a first slide rail 1, a second slide rail 2, an installation mechanism 3, an extrusion mechanism 4, a supporting mechanism 5, an anchoring mechanism 6 and a limiting mechanism 7, the top parts of the first slide rail 1 and the second slide rail 2 for facilitating the movement of the device are provided with the supporting mechanism 5 for supporting the top end of the roadway, the two sides of the first slide rail 1 and the second slide rail 2 are provided with the installation mechanism 3 for fixing the device, the middle part of one side of the second slide rail 2 is provided with the extrusion mechanism 4 for further fixing the device, the two sides of the top end of the first slide rail 1 are provided with the anchoring mechanisms 6 for anchoring the side wall of the roadway, the anchoring mechanism 6 is provided with the limiting mechanism 7 for limiting the clamping of the anchoring mechanism 6.

Specifically, the mounting mechanism 3 comprises a mounting plate 31 and a bolt 32, the two sides of the first slide rail 1 and the second slide rail 2 are respectively connected with one mounting plate 31, and the bolt 32 is arranged in the middle of the mounting plate 31; when the device is used, the mounting mechanisms 3 are fixed on two sides of the first sliding rail 1 and the second sliding rail 2, so that the whole device is fixedly arranged through a bolt assembly; namely: when in use, the first slide rail 1 and the second slide rail 2 are firstly arranged at the required proper positions, and then the first slide rail 1 and the second slide rail 2 are fixed through the mounting plates 31 and the bolts 32 at the two ends.

Specifically, the squeezing mechanism 4 includes a mounting frame 41, a reinforcing block 42 and an air cylinder 43, the mounting frame 41 is fixed in the middle of one side of the second slide rail 2, which is away from the first slide rail 1, the air cylinder 43 is installed at one end inside the mounting frame 41, the reinforcing block 42 is connected to one end of the air cylinder 43, and the reinforcing block 42 is clamped inside the mounting frame 41; when the device is used, the extrusion mechanism 4 is fixed on one side of the second slide rail 2, and the inner wall of the roadway is extruded through the corresponding telescopic block, so that the whole device is further conveniently fixed when in use; namely: when the fixing device is used, the air cylinder 43 is powered on, the air cylinder 43 drives the reinforcing block 42, the reinforcing block 42 moves in the mounting frame 41, and when the end part of the reinforcing block 42 is butted and extruded on the side wall of a roadway, the fixing device is further convenient to fix the whole fixing device.

Specifically, the supporting mechanism 5 includes a first supporting rod 51, a top plate 52, a second supporting rod 53, a handle 54, a first gear 55, a second gear 56, a first screw 57, a lifting block 58, a second screw 59 and a knob 59a, the two sides of the first slide rail 1 are respectively clamped with one second supporting rod 53, the two sides of the second slide rail 2 are respectively clamped with one first supporting rod 51, the top of the second supporting rod 53 and the top of the first supporting rod 51, which are located on the same side of the first slide rail 1 and the second slide rail 2, are provided with the top plate 52, the top ends of the first supporting rod 51 and the second supporting rod 53 are both connected with the lifting block 58 in a sliding manner, the top of the lifting block 58 is connected to the bottom of the top plate 52, the side wall of the first supporting rod 51, which is close to the bottom end, is provided with the handle 54 which is in a Z shape, one end of the handle 54 extends to the inside of the first supporting rod 51 and is connected with the first gear 55, the second gear 56 is engaged with the bottom end of the first gear 55, the first screw 57 is fixed in the middle of the second gear 56, the side wall of the first screw 57 close to the top end is in threaded connection with the lifting block 58 inside the first support rod 51, the knob 59a is arranged in the middle of one side of the second slide rail 2, one end of the knob 59a is connected with the second screw 59, one end of the second screw 59 extends into the second slide rail 2 and is in threaded connection with the inside of the two first support rods 51, and the thread directions of the two ends of the second screw 59 are opposite; when the supporting mechanism 5 is used, the supporting mechanism 5 is arranged at the tops of the first sliding rail 1 and the second sliding rail 2, and the supporting mechanism 5 is driven to lift through the corresponding gear screw transmission assembly, so that the top of a roadway is conveniently supported, and the supporting mechanism 5 is conveniently moved; namely: when the top of the roadway needs to be supported, a user can firstly manually rotate the knob 59a, the knob 59a rotates to drive the second screw rod 59 to rotate, the second screw rod 59 rotates to drive the two first support rods 51 to move in the second slide rail 2 in the opposite direction or in the opposite direction, so as to drive the two top plates 52 to move back and forth, so that the position of the top plates 52 can be conveniently adjusted, then, the user can manually rotate the handle 54, the handle 54 rotates to drive the first gear 55 to rotate, the first gear 55 rotates to drive the second gear 56 to rotate, the second gear 56 rotates to drive the first screw rod 57 to rotate, the first screw rod 57 rotates to drive the lifting block 58 to lift in the first support rods 51, so as to drive the top plates 52 to lift, so as to be suitable for the roadways with different heights, so that the top of the roadway can be better supported.

Specifically, the anchoring mechanism 6 includes a mounting block 61, a clamping block 62, an auger 63, a clamping plate 64, a guide rod 65 and a first spring 66, wherein one of the mounting blocks 61 is fixed to the top of each of the two ends of the first slide rail 1, one of the guide rods 65 is fixed to the periphery of one side of the mounting block 61, the four guide rods 65 are clamped to the periphery of the clamping plate 64, the first spring 66 is wound around the guide rods 65, one end of the first spring 66 is connected to the side wall of the clamping plate 64, the other end of the first spring 66 is connected to the side wall of the mounting block 61, the clamping block 62 is arranged in the middle of one side of the clamping plate 64, one end of the clamping block 62 is connected to the auger 63, and the auger 63 penetrates through the clamping plate 64 and the mounting block 61; when the device is used, the anchoring mechanisms 6 are arranged at the tops of two sides of the first sliding rail 1, a roadway is anchored through corresponding detachable anchor rods, and meanwhile, the offset of the anchor rods is conveniently checked through a corresponding flexible connection mode; namely: when the anchoring device is used, a user can insert the fixture block 62 by using a corresponding handheld drilling machine to drive the fixture block 62 to rotate, the fixture block 62 rotates to drive the auger 63 to drill, so that the auger 63 continuously drills into the side wall of a roadway, and anchoring and supporting of the roadway are facilitated, further, when the auger 63 continuously drills, the clamping plate 64 is driven to continuously move on the guide rod 65, the first spring 66 contracts, when the auger 63 deflects or loosens, the first spring 66 partially rebounds, and the distance of the guide rod 65 extending out of the clamping plate 64 changes, so that the deflection of the auger 63 is conveniently checked.

Specifically, the limiting mechanism 7 includes a fixing plate 71, a sliding block 72, a tooth plate 73, a fixing cylinder 74, a limiting rod 75 and a second spring 76, the fixing plate 71 is fixed at each of two ends of one side of the mounting block 61, the sliding block 72 is fixed at each of two opposite sides of the clamping plate 64, the sliding block 72 is clamped inside one side of the fixing plate 71, one side of the sliding block 72 away from the clamping plate 64 is connected with the tooth plate 73, the tooth plate 73 is clamped inside the fixing plate 71, one side of each of the two opposite sides of the fixing plate 71 is fixed with one of the fixing cylinder 74, the limiting rod 75 is arranged inside the fixing cylinder 74, the limiting rod 75 penetrates through the fixing plate 71 and is clamped on one side of the tooth plate 73, the second spring 76 is wound around the side wall of the limiting rod 75 located inside the fixing plate 71, and one end of the second spring 76 is connected to the side wall of the limiting rod 75, the other end of the second spring 76 is fixed on the inner wall of the fixed plate 71; when the device is used, the limiting mechanism 7 is arranged on the anchoring mechanism 6, and the anchoring mechanism 6 is conveniently limited through the corresponding rack limiting structure, so that the anchoring mechanism 6 is prevented from deviating or loosening, and the corresponding anchoring effect is ensured; namely: when the clamping plate 64 moves, the sliding block 72 is driven to drive the toothed plate 73 to move, the limiting rod 75 is continuously extruded along with the continuous movement of the toothed plate 73, meanwhile, the second spring 76 continuously contracts, after the anchoring of the spiral drill 63 is completed, the limiting rod 75 can clamp and limit the toothed plate 73 under the resilience force of the second spring 76, and meanwhile, the teeth on the toothed plate 73 are in the shape of oblique teeth, so that the toothed plate 73 is prevented from moving in the opposite direction, and the spiral drill 63 is prevented from deviating or loosening, so that the corresponding anchoring effect is ensured.

When the fixing device is used, firstly, the first slide rail 1 and the second slide rail 2 are arranged at the required proper positions, then the first slide rail 1 and the second slide rail 2 are fixed through the mounting plates 31 and the bolts 32 at the two ends, then, the air cylinder 43 is connected with a power supply, the air cylinder 43 drives the reinforcing block 42, the reinforcing block 42 moves in the mounting frame 41, and when the end part of the reinforcing block 42 is pressed against the side wall of a roadway, the whole fixing device is further conveniently fixed; when the top of the roadway needs to be supported, a user can firstly manually rotate the knob 59a, the knob 59a rotates to drive the second screw 59 to rotate, the second screw 59 rotates to drive the two first support rods 51 to move in the second slide rail 2 in the opposite direction or in the opposite direction, so that the two top plates 52 are driven to move back and forth, the position of the top plates 52 is convenient to adjust, then, the user can manually rotate the handle 54, the handle 54 rotates to drive the first gear 55 to rotate, the first gear 55 rotates to drive the second gear 56 to rotate, the second gear 56 rotates to drive the first screw 57 to rotate, the first screw 57 rotates to drive the lifting block 58 to lift in the first support rods 51, and further the top plates 52 are driven to lift, so that the roadway with different heights is suitable for the roadway and the top of the roadway can be better supported; in addition, a user can insert the fixture block 62 by using a corresponding handheld auger drilling machine to drive the fixture block 62 to rotate, the fixture block 62 rotates to drive the auger 63 to drill, the auger 63 is made to continuously drill into the side wall of the roadway, anchoring and supporting of the roadway are conveniently realized, furthermore, when the auger 63 is continuously drilled, the clamping plate 64 is driven to continuously move on the guide rod 65, the first spring 66 is made to contract, when the auger 63 deflects or loosens, the first spring 66 can partially rebound, and meanwhile, the distance that the guide rod 65 extends out of the clamping plate 64 is changed, so that the deflection of the auger 63 is conveniently checked; meanwhile, when the clamping plate 64 moves, the sliding block 72 is driven, the toothed plate 73 is driven to move, the limiting rod 75 can be continuously extruded along with the continuous movement of the toothed plate 73, meanwhile, the second spring 76 continuously contracts, after the anchoring of the auger 63 is completed, the limiting rod 75 can be clamped and limited on the toothed plate 73 under the resilience force of the second spring 76, meanwhile, the teeth on the toothed plate 73 are in the shape of oblique teeth, the toothed plate 73 is further prevented from moving towards the opposite direction, and therefore the auger 63 is prevented from deviating or loosening, so that the corresponding anchoring effect can be guaranteed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.