阅读说明：本技术 坑井隧道作业安全防护智能设备及安全防护方法 (Intelligent safety protection equipment for pit and tunnel operation and safety protection method ) 是由 董靖 张俊 于 2021-07-13 设计创作，主要内容包括：本发明属于隧道施工技术领域,具体涉及坑井隧道作业安全防护智能设备,包括压力传感机构、防护机构,所述压力传感机构底部与防护机构顶部通过螺栓连接,所述压力传感机构包括压力杠杆、压力活塞、压力承架,所述压力杠杆安装于压力活塞上方,且所述压力杠杆右端与压力承架的右端铰接,本发明的优点在于第二卡块使限位轴向外移动,促使限位块滑动至限位凹槽上方,夹持一部再次夹紧,使限位块下落嵌入限位固定槽,完成限位固定,夹持一部、夹持二部的夹持将不会因为夹持连杆的释放而松开,极大的加强了支撑管道连接处的稳定性,本发明还提供了采用该装置进行安全防护的方法,包括设备安装、压力承减、修复限位等步骤。(The invention belongs to the technical field of tunnel construction, and particularly relates to a safety protection intelligent device for pit and tunnel operation, which comprises a pressure sensing mechanism and a protection mechanism, wherein the bottom of the pressure sensing mechanism is connected with the top of the protection mechanism through a bolt, the pressure sensing mechanism comprises a pressure lever, a pressure piston and a pressure bearing frame, the pressure lever is arranged above the pressure piston, and the right end of the pressure lever is hinged with the right end of the pressure bearing frame. The method comprises the steps of equipment installation, pressure reduction, repair limiting and the like.)

1. Well tunnel operation safety protection smart machine, its characterized in that: the device comprises a pressure sensing mechanism (1) and a protection mechanism (2), wherein the bottom of the pressure sensing mechanism (1) is connected with the top of the protection mechanism (2) through a bolt;

the pressure sensing mechanism (1) comprises a pressure lever (11), a pressure piston (12) and a pressure bearing frame (13), wherein the pressure lever (11) is arranged above the pressure piston (12), the right end of the pressure lever (11) is hinged with the right end of the pressure bearing frame (13), the left end of the pressure bearing frame (13) is movably connected with the left end of the pressure piston (12), and a bulge at the lower end of the pressure lever (11) is connected with the right end of the pressure piston (12);

protection machanism (2) are including centre gripping one (21), centre gripping two (23), restoration cavity (3), centre gripping one (21) right-hand member and restoration cavity (3) left end turn-on connection, centre gripping two (23) left ends and restoration cavity (3) right-hand member turn-on connection, centre gripping one (21) is the same with centre gripping two (23) structures.

2. The intelligent safety protection device for pit and tunnel operation of claim 1, wherein: the clamping part (21) comprises a clamping front jaw (211), a clamping rear jaw (212), a clamping connecting rod (213) and a clamping outer plate (214), the clamping front jaw (211) and the clamping rear jaw (212) are respectively provided with the clamping connecting rod (213), the clamping front jaw (211) is arranged at the front end of the clamping outer plate (214), and the clamping rear jaw (212) is arranged at the rear end of the clamping outer plate (214).

3. The intelligent safety protection device for pit and tunnel operation of claim 2, wherein: the repair cavity (3) comprises a clamping mechanism (31) and a liquid storage upper cavity (32), and the clamping mechanism (31) is arranged below the liquid storage upper cavity (32);

screens mechanism (31) are including screens shell, screens inner pin, inner pin screw thread, inside the screens shell was located to the screens inner pin cover, the screens inner pin outside is equipped with round inner pin screw thread.

4. The intelligent safety protection device for pit and tunnel operation of claim 3, wherein: screens mechanism (31) still includes moving axis (314), slow pressure spring (315), even axle (316), first fixture block (317) and second fixture block (318), inside slow pressure spring (315) was located in moving axis (314) cover, moving axis (314) top and even axle (316) contact, first fixture block (317) tail end and even axle (316) top fixed connection, be equipped with liquid channel (319) in the middle of second fixture block (318) and first fixture block (317).

5. The intelligent safety protection device for pit and tunnel operation of claim 4, wherein: the clamping part (21) further comprises a limiting mechanism (22), the limiting mechanism (22) comprises a limiting shaft (221), a limiting block (222) and a limiting clamping block (223), the limiting block (222) is installed at the lower end of the limiting shaft (221), and the limiting clamping block (223) is arranged below the limiting shaft (221).

6. The intelligent safety protection device for pit and tunnel operation of claim 5, wherein: the limiting fixture block (223) comprises a limiting groove (2231) and a limiting fixing groove (2232), the upper end of the right part of the limiting fixture block (223) is arranged on the limiting groove (2231), and the lower part of the limiting groove (2231) is arranged on the limiting fixing groove (2232).

7. The intelligent safety protection device for pit and tunnel operation of claim 1, wherein: pressure lever (11) top is equipped with cushion (111), cushion (111) are damping non-slip material, comprise short-staple, water-based glue, zinc oxide, anti-aging agent, stearic acid, photoinitiator, magnesium stearate, potassium stearate, coupling agent and carbon fiber.

8. The intelligent safety protection device for pit and tunnel operation of claim 1, wherein: the pressure lever (11) and the pressure bearing frame (13) are provided with a plurality of three-side holes so as to form a hollow frame body structure.

9. The method for carrying out safety protection by adopting the intelligent safety protection equipment for the pit and tunnel operation of claim 8, which is characterized by comprising the following steps:

s1, installing equipment, clamping and fixing the tunnel pipeline joint through the first clamping part (21) and the second clamping part (23), and enabling the pressure sensing mechanism (1) to be in contact with the inner wall of the tunnel;

s2, pressure bearing is reduced, when the inner wall of the tunnel collapses and deforms, pressure is transmitted downwards through the pressure lever (11), the pressure lever (11) presses downwards, the pressure piston (12) is pulled away, meanwhile, redundant pressure is continuously transmitted downwards to the pressure bearing frame (13), when deformation recovers, the pressure piston (12) retracts to enable the pressure lever (11) to return, if the pressure exceeds the upper limit of the pressure lever (11), the pressure bearing frame (13) can press downwards, and when the pressure bearing frame (13) touches the bottom, the protection mechanism (2) is started;

s3, repairing and limiting, when the protection mechanism (2) is started, a valve of the upper liquid storage cavity (32) is opened, repair liquid flows out to a pipeline joint through a liquid outlet channel (319), after the repair liquid in the upper liquid storage cavity (32) is completely flushed, a motor arranged in the clamping mechanism (31) ejects a movable shaft (314), kinetic energy is slowly released through a slow-pressing spring (315), meanwhile, the movable shaft (314) drives a connecting shaft (316) to push a first clamping block (317) forwards, the first clamping block (317) is made to contact with a second clamping block (318), the liquid outlet channel (319) is sealed, meanwhile, the second clamping block (318) enables a limiting shaft (221) to move outwards, the limiting block (222) is made to slide to the upper side of a limiting groove (2231), a clamping part (21) is clamped again, the limiting block (222) falls and is embedded into a limiting fixing groove (2232), and limiting and fixing is completed.

Technical Field

The invention belongs to the technical field of tunnel construction, and particularly relates to a pit and tunnel operation safety protection intelligent device and a safety protection method.

Background

When the operation is carried out in the tunnel, can install a large amount of pipe bracket in advance and carry out the tunnel support, when being under construction at soft soil geology, because the geology is soft, and groundwater flows, cause tunnel inner wall deformation very easily, often can cause the connection of supporting the pipeline junction to loosen and lead to the support to collapse to the connection structure of current pipeline junction is very unstable and can't independently adjust.

Chinese patent with publication number CN110295944B discloses a tunnel protection unit, set up the protector more than a set of in the tunnel both sides including the equidistance, contact each other between the adjacent protector and extend towards tunnel length direction and arrange, every protector all includes a protective bracket, the bottom both sides of protective bracket rotate respectively pack into in the subaerial rotation groove of seting up in the tunnel, protective bracket's centre has a protection chamber, be provided with the more than one fender rod in the protection chamber side by side, the bottom of fender rod all sets up a slip axle sleeve, all run through in the middle of the slip axle sleeve and set up a through-hole, the through-hole that passes each slip axle sleeve all sets up a axostylus axostyle, the both ends of axostylus axostyle pass protective bracket respectively and are connected with protective bracket rotation.

Chinese patent publication No. CN105114126B discloses a simple fixed connection structure for a railway tunnel protection door, which effectively solves the problem of conflict between the position of an opening at a concrete door opening and the position of an embedded steel bar, and reduces the difficulty of field construction and installation. The door frame comprises a protective door frame, a hinge support is detachably mounted on the side wall of the protective door frame, and a deflectable sector hinge is mounted on the hinge support. The fan-shaped hinge is provided with a fan-shaped plate and a pin shaft, wherein the plate surface of the fan-shaped plate is provided with at least two mounting holes which are spaced from each other, and the pin shaft perpendicular to the plate surface of the fan-shaped plate is inserted into a circular hole of a hinge support.

Chinese patent publication No. CN108266227B discloses a tunnel protection door installation method and structure, belonging to the field of tunnel protection doors, which comprises the following steps: binding wall body reinforcing steel bars of the wall body of the reinforced cavern; fixing or pre-embedding a protective door frame upright post support piece at a set position of a wall body steel bar; fixing the protective door frame upright post on the protective door frame upright post support piece, debugging the primary structure of the protective door frame to form a final structure of the protective door frame, and installing a protective door plate on the final structure of the protective door frame; locally binding a protective door frame and a wall body steel bar so as to further increase the firm connection between the protective door frame and the wall body; and uniformly pouring a protective door frame and a cavern wall to form a door-wall integrated structure.

However, the following problems still exist:

1. the structural strength of the supporting pipeline connecting structure is low;

2. the supporting pipeline connecting structure cannot automatically adjust the external pressure and cannot be automatically repaired;

3. support pipeline connection structure and can't recycle once more and can't carry out emergent restoration to damaged structure.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides intelligent safety protection equipment for pit and tunnel operation, which is used for solving the problems that a supporting pipeline connecting structure cannot automatically adjust and repair external pressure, the supporting pipeline connecting structure cannot be recycled again and cannot perform emergency repair on a damaged structure and the like in the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme:

the intelligent safety protection equipment for the pit and tunnel operation comprises a pressure sensing mechanism and a protection mechanism, wherein the bottom of the pressure sensing mechanism is connected with the top of the protection mechanism through a bolt;

the pressure sensing mechanism comprises a pressure lever, a pressure piston and a pressure bearing frame, wherein the pressure lever is arranged above the pressure piston, the right end of the pressure lever is hinged with the right end of the pressure bearing frame, the left end of the pressure bearing frame is movably connected with the left end of the pressure piston, and a bulge at the lower end of the pressure lever is connected with the right end of the pressure piston;

the protection mechanism comprises a first clamping part, a second clamping part and a repairing cavity, wherein the right end of the first clamping part is in conduction connection with the left end of the repairing cavity, the left end of the second clamping part is in conduction connection with the right end of the repairing cavity, and the first clamping part and the second clamping part are the same in structure.

Furthermore, the first clamping part comprises a front clamping claw, a rear clamping claw, a clamping connecting rod and a clamping outer plate, wherein the clamping connecting rod is arranged at the top end of the front clamping claw, the front clamping claw is arranged at the front end of the clamping outer plate, and the rear clamping claw is arranged at the rear end of the clamping outer plate.

Further, the repair cavity comprises a clamping mechanism and an upper liquid storage cavity, and the clamping mechanism is arranged below the upper liquid storage cavity;

screens mechanism includes screens shell, screens kingpin, kingpin screw thread, inside the screens shell was located to the screens kingpin cover, the screens kingpin outside is equipped with round kingpin screw thread.

Further, screens mechanism still includes moving axis, slow compression spring, even axle, first fixture block and second fixture block, the moving axis cover is located inside the slow compression spring, moving axis top and the contact of even axle, first fixture block tail end and even axle top fixed connection, be equipped with out the liquid channel in the middle of second fixture block and the first fixture block.

Further, the first clamping part further comprises a limiting mechanism, the limiting mechanism comprises a limiting shaft, a limiting block and a limiting fixture block, the limiting block is mounted at the lower end of the limiting shaft, and the limiting fixture block is arranged below the limiting shaft.

Further, spacing fixture block includes spacing recess, spacing fixed slot, spacing recess is located spacing fixture block right part upper end, spacing fixed slot is located spacing recess below.

Further, pressure lever top is equipped with the cushion, the cushion is damping non-slip material, comprises short-staple, water glue, zinc oxide, anti-aging agent, stearic acid, photoinitiator, magnesium stearate, potassium stearate, coupling agent and carbon fiber.

Furthermore, the pressure lever and the pressure bearing frame are provided with a plurality of three-edge holes so as to form a hollow frame body structure.

The safety protection method adopting the intelligent safety protection equipment for the pit and tunnel operation comprises the following steps:

s1, installing equipment, clamping and fixing the tunnel pipeline joint through the first clamping part and the second clamping part, and enabling the pressure sensing mechanism to be in contact with the inner wall of the tunnel;

s2, pressure bearing is reduced, when the inner wall of the tunnel collapses and deforms, pressure is transmitted downwards through the pressure lever, the pressure lever presses downwards, the pressure piston is pulled away, meanwhile, redundant pressure is continuously transmitted downwards to the pressure bearing frame, when the deformation recovers, the pressure piston retracts to enable the pressure lever to return, if the pressure exceeds the upper limit of the pressure lever, the pressure bearing frame can press downwards, and when the pressure bearing frame touches the bottom, the protection mechanism is started;

s3, repairing and limiting, when the protection mechanism is started, the valve of the upper liquid storage cavity is opened, repair liquid flows out to the pipeline joint through the liquid outlet channel, after the repair liquid of the upper liquid storage cavity is clean, the movable shaft is ejected out of the motor arranged in the clamping mechanism, kinetic energy is slowly released through the slow-pressing spring, the movable shaft drives the connecting shaft to push the first fixture block forward, the first fixture block is made to contact with the second fixture block, the liquid outlet channel is sealed, meanwhile, the second fixture block enables the limiting shaft to move outwards, the limiting block is made to slide to the position above the limiting groove, one clamping part is clamped again, the limiting block falls and is embedded into the limiting fixing groove, and limiting and fixing is completed.

Compared with the prior art, the invention has the following beneficial effects:

1. the connection parts of the two pipelines are respectively clamped and fixed through the first clamping part and the second clamping part, the pressure sensing mechanism is in contact with the inner wall of the tunnel, when the inner wall of the tunnel collapses and deforms, pressure can be firstly conducted downwards through the pressure lever, the pressure lever presses downwards, the pressure piston is pulled open, meanwhile, redundant pressure is continuously conducted downwards to the pressure bearing frame, when the deformation recovers, the pressure piston retracts, the pressure lever returns, the protection mechanism can clamp and fix the support pipeline at the deformation position when the inner wall of the tunnel deforms due to the fact that underground water gushes out, and deformation and collapse of the support pipeline are avoided;

2. when the protection mechanism is started, a valve of the upper liquid storage cavity is opened, so that repair liquid flows out to a pipeline joint through the liquid outlet channel, after the repair liquid of the upper liquid storage cavity is completely flushed, a motor arranged in the clamping mechanism ejects a movable shaft, kinetic energy is slowly released through a slow pressing spring, and meanwhile the movable shaft drives a connecting shaft to push a first fixture block forward, so that the first fixture block contacts a second fixture block to seal the liquid outlet channel, and the problem that the repair liquid still overflows into the limiting mechanism to cause the condensation of the limiting mechanism and influence the repair when the limiting mechanism carries out limiting is avoided;

3. the second fixture block makes spacing axial displacement outwards, makes the stopper slide to spacing recess top, and the centre gripping is partly pressed from both sides tightly once more, makes stopper whereabouts embedding spacing fixed slot, accomplishes spacing fixed, and at this moment, whole equipment is in the lock dead state, and when protective equipment did not receive devastating structural damage, the centre gripping of centre gripping one, centre gripping two will not loosen because of the release of centre gripping connecting rod, very big enhancement support the stability of pipeline junction.

Drawings

Fig. 1 is a schematic perspective view of a first safety protection intelligent device for pit and tunnel operation according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a working state of an embodiment of the intelligent safety protection device for the well and tunnel operation of the invention;

FIG. 3 is a schematic perspective view of a second embodiment of the intelligent safety protection device for well and tunnel operations according to the present invention;

fig. 4 is a schematic three-dimensional structure diagram of an embodiment of the intelligent safety protection device for the pit and tunnel operation of the invention;

FIG. 5 is a partially enlarged view of the structure at X in FIG. 4;

FIG. 6 is a schematic left-view structural diagram of an embodiment of the intelligent safety protection device for the pit and tunnel operation of the present invention;

FIG. 7 is a schematic cross-sectional view taken at A-A in FIG. 6;

FIG. 8 is an enlarged partial view of the structure at Y in FIG. 7;

reference numerals in the drawings of the specification include:

the pressure sensing mechanism 1, the pressure lever 11, the cushion pad 111, the pressure piston 12 and the pressure bearing frame 13;

the device comprises a protection mechanism 2, a first clamping part 21, a front clamping claw 211, a rear clamping claw 212, a clamping connecting rod 213, an outer clamping plate 214, a limiting mechanism 22, a limiting shaft 221, a limiting block 222, a limiting clamping block 223, a limiting groove 2231, a limiting fixing groove 2232 and a second clamping part 23;

the repairing cavity 3, the clamping mechanism 31, the moving shaft 314, the slow pressure spring 315, the connecting shaft 316, the first fixture block 317, the second fixture block 318, the liquid outlet channel 319 and the upper liquid storage cavity 32.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described in conjunction with the accompanying drawings and examples:

it should be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Example one

As shown in fig. 1-8, the intelligent safety protection device for the pit and tunnel operation of the invention comprises a pressure sensing mechanism 1 and a protection mechanism 2, wherein the bottom of the pressure sensing mechanism 1 is connected with the top of the protection mechanism 2 through a bolt;

the pressure sensing mechanism 1 comprises a pressure lever 11, a pressure piston 12 and a pressure bearing frame 13, wherein the pressure lever 11 is arranged above the pressure piston 12, the right end of the pressure lever 11 is hinged with the right end of the pressure bearing frame 13, the left end of the pressure bearing frame 13 is movably connected with the left end of the pressure piston 12, and the bulge at the lower end of the pressure lever 11 is connected with the right end of the pressure piston 12;

the protection mechanism 2 comprises a first clamping part 21, a second clamping part 2 and a repair cavity 3, the right end of the first clamping part 21 is in conduction connection with the left end of the repair cavity 3, the left end of the second clamping part 2 is in conduction connection with the right end of the repair cavity 3, and the first clamping part 21 and the second clamping part 2 are identical in structure.

When specifically using, through centre gripping one 21, centre gripping two 2 do not carry out the centre gripping fixedly with the junction of two pipelines, pressure sensing mechanism 1 contacts with the tunnel inner wall, when the deformation appears collapsing in the tunnel inner wall, pressure can be at first through pressure lever 11 conduction downwards, pressure lever 11 pushes down, pressure piston 12 is pulled open, simultaneously, unnecessary pressure continues to conduct down to pressure bearing frame 13, reply when the deformation, pressure piston 12 contracts, make pressure lever 11 return the shape, make protection machanism 2 can gush out the support pipeline that causes the tunnel inner wall deformation to the deformation position and carry out the centre gripping fixedly when, avoid supporting the pipeline deformation to collapse.

The first clamping part 21 comprises a front clamping claw 211, a rear clamping claw 212, a clamping connecting rod 213 and an outer clamping plate 214, the clamping connecting rod 213 is arranged at the top ends of the front clamping claw 211 and the rear clamping claw 212, the front clamping claw 211 is arranged at the front end of the outer clamping plate 214, and the rear clamping claw 212 is arranged at the rear end of the outer clamping plate 214.

When specifically using, the inner walls of the front clamping claw 211 and the rear clamping claw 212 are provided with anti-skidding steel grains, so that the front clamping claw 211 and the rear clamping claw 212 clamp the supporting pipeline, and the clamping looseness caused by the smooth pipe wall is avoided.

The repair cavity 3 comprises a clamping mechanism 31 and a liquid storage upper cavity 32, and the clamping mechanism 31 is arranged below the liquid storage upper cavity 32;

screens mechanism 31 includes screens shell, screens kingpin, kingpin screw thread, and inside the screens shell was located to the screens kingpin cover, and screens kingpin outside is equipped with round kingpin screw thread.

When specifically using, through screens shell 311, can adjust the screens reaction that pressure caused on the round pin screw thread 313 on the screens internal pin 312 on the rotation, adjust screens shell 311 to the right and can make screens mechanism 31 more sensitive to the screens reaction that pressure caused, the liquid that stores in the stock solution epicoele 32 is water resin, can lie in air contact back and solidify rapidly, make the emergent restoration of the damage of pipe connection department, can strengthen the joint strength ephemeral nature of pipeline simultaneously.

Example two

As a further improvement of the previous embodiment, as shown in fig. 1 to 8, the intelligent safety protection device for the pit and tunnel operation of the present invention includes a pressure sensing mechanism 1 and a protection mechanism 2, wherein the bottom of the pressure sensing mechanism 1 is connected with the top of the protection mechanism 2 through a bolt;

the pressure sensing mechanism 1 comprises a pressure lever 11, a pressure piston 12 and a pressure bearing frame 13, wherein the pressure lever 11 is arranged above the pressure piston 12, the right end of the pressure lever 11 is hinged with the right end of the pressure bearing frame 13, the left end of the pressure bearing frame 13 is movably connected with the left end of the pressure piston 12, and the bulge at the lower end of the pressure lever 11 is connected with the right end of the pressure piston 12;

the protection mechanism 2 comprises a first clamping part 21, a second clamping part 2 and a repair cavity 3, the right end of the first clamping part 21 is in conduction connection with the left end of the repair cavity 3, the left end of the second clamping part 2 is in conduction connection with the right end of the repair cavity 3, and the first clamping part 21 and the second clamping part 2 are identical in structure.

When specifically using, through centre gripping one 21, centre gripping two 2 do not carry out the centre gripping fixedly with the junction of two pipelines, pressure sensing mechanism 1 contacts with the tunnel inner wall, when the deformation appears collapsing in the tunnel inner wall, pressure can be at first through pressure lever 11 conduction downwards, pressure lever 11 pushes down, pressure piston 12 is pulled open, simultaneously, unnecessary pressure continues to conduct down to pressure bearing frame 13, reply when the deformation, pressure piston 12 contracts, make pressure lever 11 return the shape, make protection machanism 2 can gush out the support pipeline that causes the tunnel inner wall deformation to the deformation position and carry out the centre gripping fixedly when, avoid supporting the pipeline deformation to collapse.

The first clamping part 21 comprises a front clamping claw 211, a rear clamping claw 212, a clamping connecting rod 213 and an outer clamping plate 214, the clamping connecting rod 213 is arranged at the top ends of the front clamping claw 211 and the rear clamping claw 212, the front clamping claw 211 is arranged at the front end of the outer clamping plate 214, and the rear clamping claw 212 is arranged at the rear end of the outer clamping plate 214.

When specifically using, the inner walls of the front clamping claw 211 and the rear clamping claw 212 are provided with anti-skidding steel grains, so that the front clamping claw 211 and the rear clamping claw 212 clamp the supporting pipeline, and the clamping looseness caused by the smooth pipe wall is avoided.

The repair cavity 3 comprises a clamping mechanism 31 and a liquid storage upper cavity 32, and the clamping mechanism 31 is arranged below the liquid storage upper cavity 32;

screens mechanism 31 includes screens shell, screens kingpin, kingpin screw thread, and inside the screens shell was located to the screens kingpin cover, and screens kingpin outside is equipped with round kingpin screw thread.

When specifically using, through screens shell 311, can adjust the screens reaction that pressure caused on the round pin screw thread 313 on the screens internal pin 312 on the rotation, adjust screens shell 311 to the right and can make screens mechanism 31 more sensitive to the screens reaction that pressure caused, the liquid that stores in the stock solution epicoele 32 is water resin, can lie in air contact back and solidify rapidly, make the emergent restoration of the damage of pipe connection department, can strengthen the joint strength ephemeral nature of pipeline simultaneously.

The clamping mechanism 31 further includes a moving shaft 314, a pressure-relieving spring 315, a connecting shaft 316, a first clamping block 317 and a second clamping block 318, the moving shaft 314 is sleeved inside the pressure-relieving spring 315, the top end of the moving shaft 314 contacts with the connecting shaft 316, the tail end of the first clamping block 317 is fixedly connected with the top end of the connecting shaft 316, and a liquid outlet channel 319 is formed between the second clamping block 318 and the first clamping block 317.

When the protection mechanism 2 is used specifically, when the protection mechanism 2 is started, the valve of the upper liquid storage cavity 32 is opened, so that the repair liquid flows out to the pipeline connecting part through the liquid outlet channel 319, after the repair liquid of the upper liquid storage cavity 32 is completely removed, the movable shaft 314 is ejected out of the motor arranged in the clamping mechanism 31, the kinetic energy is slowly released through the pressure-relieving spring 315, meanwhile, the movable shaft 314 drives the connecting shaft 316 to eject the first fixture block 317 forwards, so that the first fixture block 317 contacts with the second fixture block 318, the liquid outlet channel 319 is sealed, and the situation that the repair liquid still overflows into the limiting mechanism 22 when the limiting mechanism 22 is limited is avoided, and the limiting mechanism 22 is condensed to influence repair.

The first clamping part 21 further comprises a limiting mechanism 22, the limiting mechanism 22 comprises a limiting shaft 221, a limiting block 222 and a limiting fixture block 223, the limiting block 222 is mounted at the lower end of the limiting shaft 221, and the limiting fixture block 223 is arranged below the limiting shaft 221.

The limiting fixture block 223 comprises a limiting groove 2231 and a limiting fixing groove 2232, the limiting groove 2231 is arranged at the upper end of the right part of the limiting fixture block 223, and the limiting fixing groove 2232 is arranged below the limiting groove 2231.

When the device is used, the valve of the upper liquid storage cavity 32 is opened, so that the repair liquid flows out to the pipeline connection position through the liquid outlet channel 319, when the repair liquid in the upper liquid storage cavity 32 is completely flushed, the motor arranged in the clamping mechanism 31 pushes out the movable shaft 314, the kinetic energy is slowly released through the slow compression spring 315, meanwhile, the movable shaft 314 drives the connecting shaft 316 to push the first clamping block 317 forwards, so that the first clamping block 317 contacts the second clamping block 318 to seal the liquid outlet channel 319, meanwhile, the second clamping block 318 enables the limiting shaft 221 to move outwards, so that the limiting block 222 slides to the position above the limiting groove 2231, the first clamping part 21 is clamped again, the limiting block 222 falls and is embedded into the limiting fixing groove 2232, and limiting and fixing is completed, at this time, the whole device is in a locked state, when the protective device is not damaged destructively, the clamping of the first clamping part 21 and the second clamping part 2 will not be loosened by the second releasing of the clamping connecting rod 213, the stability of the joint of the supporting pipeline is greatly enhanced.

The top of the pressure lever 11 is provided with a buffer soft cushion 111, the buffer soft cushion 111 is made of damping antiskid materials and is composed of short fibers, water-based glue, zinc oxide, an anti-aging agent, stearic acid, a photoinitiator, magnesium stearate, potassium stearate, a coupling agent and carbon fibers.

The damping anti-skid material comprises 5-10 parts of short fibers, 0.5-5 parts of water-based glue, 3-7 parts of zinc oxide, 1-5 parts of an anti-aging agent, 2-8 parts of stearic acid, 1-5 parts of a photoinitiator, 10-13 parts of magnesium stearate, 1-8 parts of potassium stearate, 3-10 parts of a coupling agent and 0.5-10 parts of carbon fibers, and the buffer cushion 111 is made of the damping anti-skid material and has high strength wear resistance and anti-skid performance, so that the device has stronger surface adsorption force and can not shift when deformed under pressure.

The pressure lever 11 and the pressure bearing frame 13 are provided with a plurality of three-side holes so as to form a hollow frame body structure.

The advantages of the second embodiment over the first embodiment are: the second fixture block 318 makes the limiting shaft 221 move outwards, so that the limiting block 222 slides to the position above the limiting groove 2231, the clamping part 21 is clamped again, the limiting block 222 falls and is embedded into the limiting fixing groove 2232, and limiting and fixing are completed.

The safety protection method adopting the intelligent safety protection equipment for the pit and tunnel operation comprises the following steps:

s1, installing equipment, clamping and fixing the tunnel pipeline joint through the first clamping part 21 and the second clamping part 23, and enabling the pressure sensing mechanism 1 to be in contact with the inner wall of the tunnel;

s2, pressure bearing is carried out, when the inner wall of the tunnel collapses and deforms, pressure is transmitted downwards through the pressure lever 11, the pressure lever 11 presses downwards, the pressure piston 12 is pulled away, meanwhile, redundant pressure is continuously transmitted downwards to the pressure bearing frame 13, when deformation recovers, the pressure piston 12 retracts to enable the pressure lever 11 to return, if the pressure exceeds the upper limit of the pressure lever 11, the pressure bearing frame 13 presses downwards, and when the pressure bearing frame 13 bottoms, the protection mechanism 2 is started;

s3, repairing and limiting, when the protection mechanism 2 is started, the valve of the upper liquid storage chamber 32 is opened, so that the repair liquid flows out to the pipe connection through the liquid outlet channel 319, when the repair liquid in the upper liquid storage chamber 32 is completely removed, the motor disposed inside the clamping mechanism 31 ejects the movable shaft 314, the kinetic energy is slowly released through the slow compression spring 315, and simultaneously the movable shaft 314 drives the connecting shaft 316 to eject the first clamping block 317 forward, so that the first clamping block 317 contacts the second clamping block 318, so as to seal the liquid outlet channel 319, and at the same time, the second clamping block 318 causes the limiting shaft 221 to move outward, so that the limiting block 222 slides to the upper side of the limiting groove 2231, and the clamping portion 21 is clamped again, so that the limiting block 222 falls into the limiting fixing groove 2232, thereby completing the limiting and fixing.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.