CN220059613U - Temporary support device and system for tunneling roadway - Google Patents

Abstract

The embodiment of the utility model provides a temporary support device and a temporary support system for a tunneling roadway, wherein the temporary support device comprises: the front cantilever, the supporting component and the front cantilever hanging component are sleeved on the outer wall of the front cantilever; the support assembly comprises a threaded rod which penetrates through the front cantilever and is vertically arranged, a first nut is connected with the upper end of the threaded rod in a threaded manner, a first circular plate is arranged above the first nut, and at least two support ribs are uniformly arranged on the first circular plate; the lower end of the threaded rod is connected with a second circular plate, and a handle is arranged on the second circular plate; the end part of the front cantilever is hinged with one end of an anti-tilting rod through a connecting plate, and the other end of the anti-tilting rod is connected with a steel drill rod; at least two metal net hooks are uniformly arranged on the anti-tilting rod; the temporary support device has the beneficial effects that the temporary support can be effectively carried out on the roadway; is applicable to the field of temporary support devices.

Description

Temporary support device and system for tunneling roadway

Technical Field

The utility model relates to the technical field of temporary support devices, in particular to a temporary support device and a temporary support system for a tunneling roadway.

Background

The underground coal mine can meet various geological structures and mine pressure display conditions during the tunnel tunneling operation, if a supporting device is not arranged on a tunnel roof, the problem of overhead operation exists, a certain potential safety hazard exists, and the coal mine safety regulations require advanced supporting to be adopted when the tunnel is tunneled in a soft coal (rock) layer, a sand-flowing stratum or a broken belt. "use of correct, effective temporary support is extremely important.

In order to solve the above problems, an anchor net roadway temporary supporting device is proposed, a plurality of suspension devices are arranged below an anchor net roadway top plate to enable a front cantilever to be suspended below the top plate, a plurality of top plate protection nets and back wood are paved on the front cantilever, a larger supporting range is formed below the anchor net roadway top plate, and a supporting effect is achieved on the anchor net roadway top plate.

In the scheme, a plurality of back woods for supporting the top plate are needed, if a distance still exists between the upper surface of the back woods and the top plate of the roadway, rocks on the top plate of the roadway can fall onto the back woods and impact force is generated on the whole anchor net roadway temporary supporting device, the supporting effect of the anchor net roadway temporary supporting device is affected, one or more layers of back woods are needed to be paved on the front cantilever along the height direction of the anchor net roadway according to actual conditions, and besides more materials are consumed, the operation is troublesome; the upper part of the S-shaped hook is hung in a hanging hole on the front cantilever, the lower part of the S-shaped hook is hung on the upper part of the face-facing protective net, the face-facing protective net vertically extends to the bottom plate of the anchor net roadway, and a single acting point is hung, so that the use requirements of roadways with different gradients cannot be met; meanwhile, when the actual roadway net hanging operation is carried out, the S-shaped hooks are extremely easy to scatter and unhook.

Disclosure of Invention

In order to solve one of the technical defects, the embodiment of the utility model provides a temporary support device and a temporary support system for a tunneling roadway, which are used for directly supporting the top of the roadway.

The embodiment of the utility model provides a temporary support device for a tunneling roadway, which comprises the following components: the front cantilever, the supporting component and the at least one front cantilever hanging component are sleeved on the outer wall of the front cantilever; the support assembly comprises a threaded rod which penetrates through the front cantilever and is vertically arranged, a first nut is connected to the upper end of the threaded rod in a threaded mode, a first circular plate is arranged above the first nut, and at least two support ribs are uniformly arranged on the first circular plate; the lower end of the threaded rod is connected with a second circular plate, and a handle is arranged on the second circular plate; the end part of the front cantilever is hinged with one end of an anti-tilting rod through a connecting plate, and the other end of the anti-tilting rod is connected with a steel drill rod; at least two metal net hooks are uniformly arranged on the anti-tilting rod.

Preferably, the front cantilever suspension assembly comprises a hanging ring, and the hanging ring is sleeved on the outer wall of the front cantilever; a second nut is arranged on the side wall of the upper part of the lifting ring, and an anchor rod arranged on the roadway top plate penetrates through the second nut and is in abutting connection with the front cantilever; and a third nut is arranged on the side wall of the lifting ring, and a third limit screw penetrates through the third nut and then is in abutting connection with the front cantilever.

Preferably, the second nut and the third nut are arranged on two end side walls with the same diameter of the hanging ring.

Preferably, the front cantilever suspension assembly comprises a hinge, and a main leaf and a sub leaf of the hinge are vertically arranged; the first transverse plate is connected to the master page, and one end, far away from the master page, of the first transverse plate is provided with a barb part; the sub-page is connected with a clamping plate, and a hook is arranged below the clamping plate; the clamping plate is hinged with one end of the first connecting piece, and a first bump is arranged at the other end of the first connecting piece; the hook part of the hook is hinged with one end of a second connecting piece, and a first concave block is arranged at the other end of the second connecting piece; the first concave block is matched with the first convex block, so that a first through hole is formed between the hook and the first connecting piece and between the hook and the second connecting piece; the front cantilever suspension assembly is sleeved on the outer wall of the front cantilever through a first through hole.

Preferably, the front cantilever is vertical to a shed beam arranged on the roadway roof; the barb portion arranged on the first transverse plate is in abutting connection with the shed beam.

Preferably, two fourth nuts through which the threaded rod penetrates are arranged on the side wall of the front cantilever, and the threaded rod is in threaded connection with the two fourth nuts; the two fourth nuts are arranged on the side walls at the two ends of the diameter of the front probe Liang Tongyi.

Preferably, a screw hole into which the first limit screw is inserted is formed in one side of the first nut.

Preferably, a fifth nut in threaded connection with the top of the steel drill is arranged inside one end of the anti-tilting rod connected with the steel drill.

The embodiment of the utility model also provides a temporary support system of the tunneling roadway, which comprises a metal protective net and a plurality of temporary support devices, wherein the temporary support devices are any one of the temporary support devices; the temporary supporting devices are arranged on the roadway roof in parallel and uniformly; the adjacent temporary support devices are connected through metal protective nets.

Preferably, the temporary support devices are connected with the metal protection net through metal net hooks.

The utility model has the beneficial effects that:

1. the front cantilever is sleeved with the front cantilever suspension assembly, so that the front cantilever can be suspended and stably connected; the support component carries out adjustment on the vertical direction to the threaded rod through the handle that sets up on the second plectane for the top of roadway is directly supported through the supporting rib that sets up on first plectane and the first plectane, and stability is strong, firm reliable and convenient operation more. The support component is adopted to replace the arrangement of a large amount of backwood in the prior art, so that consumed materials are reduced, and the cost is saved. The tip of cantilever beam articulates mutually with the one end of anti-tilt rod through the connecting plate, and anti-tilt rod can carry out arbitrary direction and angle regulation for the cantilever beam in the front for anti-tilt rod can be on a parallel with the working face in the tunnel all the time, satisfies different operational environment's requirement. The drill rod is connected to the other end of the anti-tilting rod, and when the working face has an inclined angle, one end, far away from the anti-tilting rod, of the drill rod can be inserted into a roadway bottom plate, so that the direction and the angle between the front cantilever and the anti-tilting rod are fixed, and the operation is convenient. The metal net hooks are arranged on the anti-tilting rod, can connect the metal protection net, are not easy to unhook and scatter, protect the working space through the metal protection net, can effectively prevent the working face and falling objects around from rolling off to hurt people, and are safer in the process of tunneling roadway operation.

The temporary support device provided by the utility model is not limited by the section of the roadway, has a wide application range, and can be used for supporting the roadway in any shape, such as: the arch roadway and the rectangular roadway supported by the coal roadway tunneling anchor net are also used for the shed roadway.

2. In the embodiment of the utility model, the front cantilever is hung and positioned through the hanging ring, the hanging ring is sleeved on the front cantilever, and the anchor rod on the tunnel top plate is in abutting connection with the front cantilever after penetrating through the second nut arranged on the side wall of the upper part of the hanging ring; the third limit screw penetrates through a third nut arranged on the side wall of the hanging ring and is in abutting connection with the front cantilever. The anchor rod hangs the front cantilever through the second nut, can fix a position the front cantilever through stock and third stop screw, makes rings with the chucking of front cantilever.

When the front cantilever needs to be moved, the front cantilever is pushed to a designated position in the hanging ring by separating the anchor rod from the second nut and separating the third limit screw from the third nut.

3. In the embodiment of the utility model, the second nut and the third nut are arranged on the side walls of the two ends of the lifting ring with the same diameter, so that the acting force of the anchor rod on the front cantilever and the acting force of the third limit screw on the front cantilever are opposite but are on the same straight line, the front cantilever can be better clamped, and the connecting structure is stable.

4. In the embodiment of the utility model, the main page and the sub page of the hinge are vertically arranged, and the hook arranged below the clamping plate connected on the sub page can form a first through hole with the first connecting piece and the second connecting piece; the first lug that sets up on the first connecting piece suits with the first concave piece that sets up on the second connecting piece for in the course of the work, first lug card is in first concave piece, is connected first connecting piece and second connecting piece, through the connection and the separation of first lug and first concave piece, realizes the connection and the separation of first connecting piece and second connecting piece, and the stretching into of cantilever beam in first through-hole of being convenient for stretches into in first through-hole stretches out, thereby hangs the cantilever beam firmly, easy operation, labour saving and time saving, improved work efficiency.

5. In the utility model, the canopy and the front canopy are vertically arranged, the barb part arranged on the first transverse plate in the front canopy suspension assembly is in abutting connection with the canopy, the connection structure between the barb part and the canopy is simple, and the front canopy is hung on a roadway roof by being clamped on the canopy through the barb part, so that the use is flexible and the disassembly is convenient.

6. According to the utility model, the fourth nuts are arranged on the side walls of the two ends of the diameter of the front cantilever Liang Tongyi, and the threaded rods sequentially penetrate through the two fourth nuts, so that threaded connection with the front cantilever is realized, and the distance between the first circular plate and the supporting rib which are arranged above the threaded rods and the top of the roadway can be controlled by rotating the threaded rods, so that the top of the roadway is better supported.

7. In the utility model, one side of the first nut is provided with the screw hole into which the first limit screw is inserted, and when the threaded rod is tightly connected with the first nut by screw threads, the first limit screw is inserted, so that the threaded rod is limited in the first nut and cannot fall off.

8. According to the utility model, the through hole is formed in one end of the anti-tilting rod connected with the steel drill rod, the fifth nut is arranged in the through hole, and the top of the steel drill rod is connected to the anti-tilting rod through the fifth nut in a threaded manner, so that the steel drill rod is inserted into the roadway bottom plate and the anti-tilting rod is also fixed.

9. The temporary support system provided by the utility model comprises a plurality of temporary support devices, wherein the metal protection net is arranged between the temporary support devices, and the metal protection net can be used for protecting the working space, so that the working face and falling objects around the working face can be effectively prevented from rolling off to hurt people, and the working process of tunneling a roadway is safer.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a temporary support device for a tunneling roadway according to a first embodiment of the present utility model;

fig. 2 is a schematic structural view of a support assembly of a temporary support device for a tunneling roadway according to a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a lifting ring of a temporary support device for a tunnelling roadway according to a first embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a temporary support device for a tunneling roadway according to a second embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a front cantilever suspension assembly according to a second embodiment of the present utility model;

FIG. 6 is a side view of a front cantilever suspension assembly according to a second embodiment of the present utility model;

fig. 7 is an enlarged view of a portion a of a temporary support device for a tunneling roadway according to a second embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a clamping plate of a front cantilever suspension assembly according to a second embodiment of the present utility model;

fig. 9 is a schematic structural view of a hinge of a front cantilever suspension assembly according to a second embodiment of the present utility model;

in the figure: 10 is a hinge, 20 is a first transverse plate, 30 is a clamping plate, 40 is a first connecting piece, 50 is a second connecting piece, 60 is a first through hole, 70 is a shed beam, 80 is a front cantilever, 90 is a supporting component, 100 is a connecting plate, 110 is an anti-tilting rod, 120 is a steel drill, and 130 is a hanging ring;

101 is a master page, 102 is a slave page, 103 is a pin, 201 is a barb, 301 is a hook, 401 is a first bump, 501 is a first concave block, 901 is a threaded rod, 902 is a first nut, 903 is a first circular plate, 904 is a second circular plate, 1101 is a metal mesh hook, 1102 is a fifth nut, 1201 is a pedal, 1301 is a second nut, 1302 is a third nut;

1011 are grooves, 1012 are first extending parts, 1021 are second extending parts, 1022 are supporting shoulders, 9021 are first limit screws, 9031 are supporting ribs, and 9041 is a handle.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of exemplary embodiments of the present utility model is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the process of realizing the utility model, the inventor finds that the temporary support device and the temporary support system for the tunneling roadway, which have simple structure and convenient operation and can effectively support the roadway, are the problems to be solved at present.

The embodiment of the utility model provides a temporary support device for a tunneling roadway, which can support the roadway temporarily, and in the embodiment, the setting direction of a front cantilever is the same as the advancing direction of the roadway, the advancing direction of the roadway is called as a longitudinal direction, the width direction of the roadway is called as a transverse direction, and the height direction of the roadway is called as a vertical direction.

Example 1

Fig. 1 is a schematic structural diagram of a temporary support device for a tunneling roadway according to a first embodiment of the present utility model, and fig. 2 is a schematic structural diagram of a support assembly of a temporary support device for a tunneling roadway according to a first embodiment of the present utility model, as shown in fig. 1 and fig. 2, and in order to solve the above-mentioned problems, a temporary support device for a tunneling roadway is provided according to a first embodiment of the present utility model, which includes: the front cantilever 80, the supporting component 90 and the front cantilever suspension component sleeved on the outer wall of the front cantilever 80 can suspend and firmly connect the front cantilever.

Specifically, the front cantilever 80 is a hollow steel pipe, and the front cantilever has lighter overall mass, is lighter and is convenient to detach.

The supporting component 90 comprises a threaded rod 901 which penetrates through the front cantilever 80 and is vertically arranged, two fourth nuts for the threaded rod 901 to penetrate through are arranged on the side wall of the front cantilever 80, and the threaded rod 901 is in threaded connection with the two fourth nuts; the two fourth nuts are arranged on the side walls of the two ends of the same diameter of the front cantilever 80, the threaded rod sequentially penetrates through the two fourth nuts, so that threaded connection with the front cantilever is achieved, the distance between a first circular plate and a supporting rib arranged above the threaded rod and the top of a roadway can be controlled through rotating the threaded rod, and the top of the roadway is supported better.

The upper end threaded connection of threaded rod 901 has first nut 902, has offered on one side of first nut 902 and has supplied first stop screw 9021 male screw hole, inserts first stop screw after threaded rod and first nut threaded connection are inseparable, limit the threaded rod in first nut, can not drop.

A first circular plate 903 is arranged above the first nut 902, and at least two supporting ribs 9031 are uniformly arranged on the first circular plate 903; the lower end of the threaded rod 901 is connected with a second circular plate 904, and a handle 9041 is arranged on the second circular plate 904.

Specifically, the first circular plate 903, the first nut 902, the second circular plate 904 and the threaded rod 901 are all concentrically arranged, so that the structure of the support assembly is more stable, and no offset occurs.

The support component carries out adjustment on the vertical direction to the threaded rod through the handle that sets up on the second plectane for the top of roadway is directly supported through the supporting rib that sets up on first plectane and the first plectane, and stability is strong, firm reliable and convenient operation more. The support component is adopted to replace the arrangement of a large amount of backwood in the prior art, so that consumed materials are reduced, and the cost is saved.

The end of the front cantilever 80 is hinged with one end of an anti-tilting rod 110 through a connecting plate 100, and the anti-tilting rod can be adjusted in any direction and angle relative to the front cantilever, so that the anti-tilting rod can be always parallel to a working surface in a roadway, and the requirements of different working environments are met.

The other end of the anti-tilting bar 110 is connected with a steel drill 120; the anti-tilting bar 110 is internally provided with a fifth nut 1102 screw-coupled to the top of the drill steel 120 at one end thereof connected to the drill steel 120. When the working face has an inclination angle, one end, far away from the anti-tilting rod, of the steel drill rod can be inserted into the roadway bottom plate, so that the direction and the angle between the front cantilever and the anti-tilting rod are fixed, and the operation is convenient.

Specifically, a pedal 1201 is provided on the drill steel.

The steel drill rod can be conveniently inserted into the roadway bottom plate through the pedal.

Specifically, the connection plate 100 is provided with two first hinge holes.

The front cantilever 80 is provided with a first steel plate at one end close to the connection plate 100, and a second hinge hole is provided on the first steel plate. The end of the anti-tilting bar 110, which is close to the connecting plate 100, is provided with a second steel plate, and a third hinge hole is formed in the second steel plate;

the first hinge hole, the second hinge hole and the third hinge hole are hinged together through bolts and nuts respectively, and the anti-tilting rod can be adjusted in any direction and angle relative to the front cantilever.

At least two metal net hooks 1101 are uniformly provided on the anti-tilting bar 110. The metal net hook is arranged on one side close to the roadway. Can connect the metal protection network, be difficult for unhooking and scattering, protect the operation space through the metal protection network, can prevent effectively that the working face and the thing roll injury people that falls around, it is safer to tunnel the operation in-process.

Specifically, the distance between the metal net hooks is adapted to the width of the metal protection net, so that the metal protection net can be firmly hooked on the metal net hooks and is not easy to fall off.

The temporary supporting device provided by the utility model is not limited by the section of the tunnel, has a wide application range, and can be used for arched tunnels and rectangular tunnels for supporting the coal tunnel tunneling anchor net.

Fig. 3 is a cross-sectional view of a lifting ring of a temporary supporting device for a tunneling roadway, as shown in fig. 3, further, a front cantilever suspension assembly includes a lifting ring 130, the lifting ring 130 is sleeved on an outer wall of the front cantilever 80, and an inner diameter of the lifting ring 130 is larger than an outer diameter of the front cantilever 80; a second nut 1301 is arranged on the side wall of the upper part of the lifting ring 130, and an anchor rod arranged on the roadway top plate penetrates through the second nut 1301 and then is in abutting connection with the front cantilever 80; a third nut 1302 is arranged on the side wall of the hanging ring 130, and a third limit screw is in abutting connection with the front cantilever 80 after penetrating through the third nut 1302.

In the embodiment of the utility model, the front cantilever is hung and positioned through the hanging ring, the hanging ring is sleeved on the front cantilever, and the anchor rod on the tunnel top plate is in abutting connection with the front cantilever after penetrating through the second nut arranged on the side wall of the upper part of the hanging ring; the third limit screw penetrates through a third nut arranged on the side wall of the hanging ring and is in abutting connection with the front cantilever. The anchor rod hangs the front cantilever through the second nut, can fix a position the front cantilever through stock and third stop screw, makes rings with the chucking of front cantilever.

When the front cantilever needs to be moved, the front cantilever is pushed to a designated position in the hanging ring by separating the anchor rod from the second nut and separating the third limit screw from the third nut.

Further, the second nut 1301 and the third nut 1302 are disposed on two end sidewalls of the same diameter of the hanging ring 130.

In the embodiment of the utility model, the second nut and the third nut are arranged on the side walls of the two ends of the lifting ring with the same diameter, so that the acting force of the anchor rod on the front cantilever and the acting force of the third limit screw on the front cantilever are opposite but are on the same straight line, the front cantilever can be better clamped, and the connecting structure is stable.

In the above embodiment, the suspension ring is used as the front cantilever suspension assembly, and in fact, other front cantilever suspension assemblies may be used, which are described in detail in the following embodiments.

Example two

Fig. 4 is a schematic structural diagram of a temporary support device for a tunneling roadway provided by a second embodiment of the present utility model, fig. 5 is a schematic structural diagram of a cantilever suspension assembly provided by the second embodiment of the present utility model, and fig. 6 is a side view of the cantilever suspension assembly provided by the second embodiment of the present utility model, as shown in fig. 4, fig. 5 and fig. 6, and compared with the first embodiment, the difference of the present embodiment is that: the front canopy suspension assembly includes: the hinge 10, the main page 101 and the sub page 102 of the hinge 10 are vertically arranged; the main page 101 is connected with a first transverse plate 20, and one end, far away from the main page 101, of the first transverse plate 20 is provided with a barb 201; the sub-page 102 is connected with a clamping plate 30, and a hook 301 is arranged below the clamping plate 30.

Fig. 7 is an enlarged view of a portion a of a temporary support device for a tunnelling roadway according to a second embodiment of the present utility model, as shown in fig. 7, and accordingly, a front cantilever 80 is perpendicular to a canopy 70 provided on a roof of the roadway; the shed beam 70 is in abutting connection with the barb 201 provided on the first cross plate 20; the connection structure between the barb part and the shed beam is simple, and the operation is convenient and quick.

Specifically, the length of the first transverse plate in the longitudinal direction is longer than that of the shed beam in the longitudinal direction, so that the barb portion can be firmly hooked on the shed beam.

The clamping plate 30 is hinged with one end of the first connecting piece 40, and a first bump 401 is arranged at the other end of the first connecting piece 40; the hook part of the hook 301 is hinged with one end of the second connecting piece 50, and the other end of the second connecting piece 50 is provided with a first concave block 501; the first recess 501 is adapted to the first protrusion 401 such that a first through hole 60 for the front cantilever is formed between the hook 301 and the first and second connection members 40 and 50. The front canopy 80 can extend through the first through hole 60 to thereby effect suspension of the front canopy from the canopy.

The front cantilever suspension assembly provided by the utility model can not be in direct contact with the top plate of the roadway, and the front cantilever is clamped on the shed beam through the barb part to be suspended on the top plate of the roadway, so that the front cantilever suspension assembly is flexible in use and convenient to detach.

Specifically, the canopy beam 70 is an i-shaped canopy beam, and the top of the i-shaped canopy beam is in abutting connection with the barb portion 201, so that the canopy is more stable.

Specifically, the length of the card 30 in the vertical direction is longer than the length of the canopy 70 in the vertical direction, so that the penetration and the extension of the front canopy in the first through hole can be ensured not to be affected by the canopy.

In the working process, the first convex block is clamped in the first concave block to connect the first connecting piece and the second connecting piece, and the connection and the separation of the first convex block and the first concave block are realized, so that the front cantilever can extend into and out of the first through hole conveniently, the operation is simple, the time and the labor are saved, and the working efficiency is improved.

The front cantilever suspension assembly provided by the utility model has the advantages of simple structure and convenience in use, and can stably suspend the front cantilever.

Specifically, the first connector 40 and the second connector 50 are disposed on the same side of the clamping plate 30, so that the first connector and the second connector are connected and separated on the same plane, and the suspension and separation of the front cantilever are more convenient.

More specifically, the first connector 40 and the second connector 50 are disposed on the side of the clamping plate 30 away from the first transverse plate 20, so that the first connector and the second connector are not affected by the connecting component on the first transverse plate when being connected and separated, and the operation is more convenient.

Fig. 8 is a schematic structural diagram of a clamping plate of a cantilever suspension assembly according to a second embodiment of the present utility model, as shown in fig. 8, when the first bump 401 is separated from the first concave block 501 in this embodiment, the first connecting member and the second connecting member rotate the first bump end and the first concave block end to a vertically downward position under the action of gravity.

Specifically, the first connecting piece can rotate at any angle on the same plane relative to the clamping plate through the hinge point; the second connecting piece can rotate at any angle on the same plane relative to the hook through the hinge point. The first connecting piece and the second connecting piece can be conveniently rotated, so that the first convex block and the first concave block are conveniently clamped together during working to form a stable first through hole.

Fig. 9 is a schematic structural view of a hinge of a front cantilever suspension assembly according to a second embodiment of the present utility model, as shown in fig. 9, specifically, a main leaf 101 and a sub leaf 102 are hinged by a pin 103; the middle part of one end of the master page 101, which is close to the pin shaft 103, is provided with a groove 1011, both sides of the groove 1011 are upwards extended with a first extension part 1012, and the first extension part 1012 is provided with a second through hole for the pin shaft 103 to pass through.

A second extension part 1021 is upwards extended from the middle part of one end of the sub page 102, which is close to the pin shaft 103, and a third through hole for the pin shaft 103 to pass through is arranged on the second extension part 1021; the third through hole is arranged between the two second through holes; the master page 101 is vertically disposed on the support shoulders 1022 on both sides of the second extension 1021, so that the vertical arrangement between the master page and the slave page is more stable.

According to the utility model, the main page and the sub page are hinged together through the pin shaft, and the second extension part arranged on the sub page can extend into the groove arranged on the main page, so that the third through hole is arranged between the two second through holes, and the pin shaft sequentially penetrates through one second through hole, the third through hole and the other second through hole.

Specifically, the second through hole and the third through hole are coaxially arranged, and the apertures of the second through hole and the third through hole are the same, so that the hinge can be better realized through the pin shaft.

The temporary support device provided by the embodiment is not limited by the section of the roadway, has a large application range, and can be used for a shed roadway.

The utility model also provides a temporary support system of the tunneling roadway, which comprises a metal protective net and a plurality of temporary support devices, wherein the temporary support devices are any one of the temporary support devices; the temporary supporting devices are arranged on the roadway roof in parallel and uniformly; the adjacent temporary support devices are connected through metal protective nets.

Further, the temporary support devices are all connected with the metal protection network through metal network hooks 1101.

The temporary support system provided by the utility model comprises a plurality of temporary support devices, wherein the metal protection net is arranged between the temporary support devices, and the metal protection net can be used for protecting the working space, so that the working face and falling objects around the working face can be effectively prevented from rolling off to hurt people, and the working process of tunneling a roadway is safer.

Working principle:

the method comprises the steps that temporary support is carried out on a tunneling roadway provided with a shed beam on a roadway top plate, after coal is cut on a working face, the front canopy and the shed beam arranged on the roadway top plate are fixed through a front canopy suspension assembly, the upper portion of the shed beam is hooked tightly through a barb portion of a first transverse plate connected to a main leaf, the front canopy is supported through a hook arranged below a clamping plate connected to a sub-leaf, after the front canopy stretches into the hook, a first bump on a first connecting piece and a first concave block on a second connecting piece are clamped together, a first through hole is formed between the hook and the first connecting piece and a second connecting piece, and therefore the front canopy can be limited in the first through hole to be firmly suspended (the tunneling roadway provided with an anchor rod on the roadway top plate is temporarily supported, and after coal is cut on the working face, the front canopy is connected with the anchor rod on the roadway top plate through a second nut on the lifting ring). The handle that sets up on the second plectane carries out the ascending regulation of vertical direction to the threaded rod for the top that sets up on through first plectane and first plectane directly supports the tunnel, then inserts first stop screw in the screw hole on one side of the first nut, will not drop in limiting the threaded rod in the first nut, then rotates the anti-tilt pole, makes anti-tilt pole and working face parallel, then inserts the drill rod in the tunnel bottom plate. Then, a metal protective net is paved on the metal net hooks of the adjacent temporary support device. Protective nets are formed below the front cantilever, the two side walls of the roadway and below the metal protective net, and constructors drill under the protective net and install permanent support operations such as anchor rods.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. The utility model provides a tunnelling tunnel temporary support device which characterized in that: comprising the following steps: the front cantilever (80), the supporting component (90) and at least one front cantilever hanging component sleeved on the outer wall of the front cantilever (80);

the supporting assembly (90) comprises a threaded rod (901) penetrating through the front cantilever (80) and vertically arranged, a first nut (902) is connected to the upper end of the threaded rod (901) in a threaded mode, a first circular plate (903) is arranged above the first nut (902), and at least two supporting ribs (9031) are uniformly arranged on the first circular plate (903); the lower end of the threaded rod (901) is connected with a second circular plate (904), and a handle (9041) is arranged on the second circular plate (904);

the end part of the front cantilever (80) is hinged with one end of an anti-tilting rod (110) through a connecting plate (100), and the other end of the anti-tilting rod (110) is connected with a steel drill rod (120);

at least two metal net hooks (1101) are uniformly arranged on the anti-tilting rod (110).

2. The tunnelling roadway temporary support device of claim 1, wherein: the front cantilever suspension assembly comprises a hanging ring (130), and the hanging ring (130) is sleeved on the outer wall of the front cantilever (80);

a second nut (1301) is arranged on the side wall of the upper part of the lifting ring (130), and an anchor rod arranged on a roadway top plate penetrates through the second nut (1301) and then is in abutting connection with the front cantilever (80);

and a third nut (1302) is arranged on the side wall of the lifting ring (130), and a third limit screw penetrates through the third nut (1302) and then is in abutting connection with the front cantilever (80).

3. A temporary support device for a tunnelling roadway as claimed in claim 2, wherein: the second nut (1301) and the third nut (1302) are arranged on two end side walls with the same diameter of the hanging ring (130).

4. The tunnelling roadway temporary support device of claim 1, wherein: the front cantilever suspension assembly comprises a hinge (10), wherein a main page (101) and a sub page (102) of the hinge (10) are vertically arranged;

the female page (101) is connected with a first transverse plate (20), and one end, far away from the female page (101), of the first transverse plate (20) is provided with a barb part (201);

the sub-page (102) is connected with a clamping plate (30), and a hook (301) is arranged below the clamping plate (30); the clamping plate (30) is hinged with one end of the first connecting piece (40), and a first lug (401) is arranged at the other end of the first connecting piece (40); the hook part of the hook (301) is hinged with one end of a second connecting piece (50), and a first concave block (501) is arranged at the other end of the second connecting piece (50); the first concave block (501) is matched with the first convex block (401) so that a first through hole (60) is formed between the hook (301) and the first connecting piece (40) and the second connecting piece (50);

the front cantilever suspension assembly is sleeved on the outer wall of the front cantilever (80) through a first through hole (60).

5. The temporary support device for a tunneling roadway according to claim 4, wherein: the front cantilever (80) is perpendicular to a shed beam (70) arranged on the roadway roof;

the barb part (201) arranged on the first transverse plate (20) is in abutting connection with the shed beam (70).

6. The tunnelling roadway temporary support device of claim 1, wherein: the side wall of the front cantilever (80) is provided with two fourth nuts for the threaded rod (901) to penetrate, and the threaded rod (901) is in threaded connection with the two fourth nuts;

the two fourth nuts are arranged on the side walls of the two ends of the front cantilever (80) with the same diameter.

7. The tunnelling roadway temporary support device of claim 1, wherein: one side of the first nut (902) is provided with a screw hole into which a first limit screw (9021) is inserted.

8. The tunnelling roadway temporary support device of claim 1, wherein: and a fifth nut (1102) in threaded connection with the top of the steel drill rod (120) is arranged inside one end of the anti-tilting rod (110) connected with the steel drill rod (120).

9. The utility model provides a tunnelling tunnel temporary support system which characterized in that: comprising a metal protection network and a plurality of temporary support devices, wherein the temporary support devices are the temporary support devices according to any one of claims 1 to 8;

the temporary supporting devices are arranged on the roadway roof in parallel and uniformly; the adjacent temporary support devices are connected through metal protective nets.

10. A tunnelling roadway temporary support system as claimed in claim 9, wherein: the temporary support devices are connected with the metal protection net through metal net hooks (1101).