CN215258212U

CN215258212U - Blasting construction pipeline shock attenuation warning support

Info

Publication number: CN215258212U
Application number: CN202120925790.XU
Authority: CN
Inventors: 路镇武; 孟平原; 杨国富; 陈浩; 田新国; 李新奇; 齐世超; 侯丽霞
Original assignee: Third Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
Current assignee: Third Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-21
Anticipated expiration: 2031-04-30

Abstract

The utility model provides a shock absorption alarm support for blasting construction pipelines, which comprises a support shock absorption unit, a pipeline clamping unit and a vibration detection alarm unit; the pipeline clamping unit comprises a lower bearing block and an upper pressing block, one side of the lower bearing block is rotatably connected with one side of the upper pressing block through a hinge, and the lower bearing block and the upper pressing block can be opened or buckled so as to be clamped on a pipeline; the vibration detection alarm unit is arranged at the top of the upper compaction block and comprises a vibration speed sensor; the supporting and damping unit is arranged at the bottom of the lower bearing block in a telescopic and adjustable manner along the vertical direction, and a roller is arranged at the bottom of the supporting and damping unit; the utility model has the advantages that the structure is convenient to disassemble and assemble, and the space is not occupied; the pipeline blasting vibration control system can be better adapted to different blasting vibration speeds and frequencies, the problem that the traditional supporting structure cannot provide telescopic deformation of the pipeline when the temperature difference changes in tunnel blasting construction with a long construction period is solved, and the construction safety is improved.

Description

Blasting construction pipeline shock attenuation warning support

Technical Field

The utility model belongs to the technical field of blasting construction pipeline shock attenuation alarm support, concretely relates to blasting construction pipeline shock attenuation alarm support.

Background

The pipeline is a commonly adopted mode for high-efficiency, convenient and economic transportation of liquid and gas in the world at present, and is widely applied to transportation of natural gas, petroleum, water, carbon dioxide and the like. Along with the continuous development of national economy and urbanization process of China, traffic networks such as roads, railways and the like are more and more dense, and more projects are provided for tunnel construction to penetrate or approach existing pipelines; the tunnel excavation not only can lead to the generation of surrounding rock unloading, pipeline deformation, and the blasting vibration that produces in the surrounding rock blasting process will also produce the adverse effect to the safety of nearby existing pipeline facilities. A large number of open-laying pipelines (such as water pipelines and the like) are built in many cities and suburbs in China, the bases of the pipelines are mostly concrete independent foundations, and the pipeline and foundation are generally connected in a rolling buttress mode so as to adapt to longitudinal deformation of the pipelines caused by temperature change and the like. The tunnel blasting vibration monitoring and theoretical analysis surface shows that the vertical particle vibration speed generated by blasting in the downward-penetrating construction is obviously greater than that in the horizontal direction, and the connection of the pipeline and the foundation rolling buttress in the mode enables the vertical vibration of the surface surrounding rock to be directly transmitted to the pipeline on the upper part through the buttress, so that the normal and safe operation of the pipeline is threatened.

The currently adopted blasting damping control method mainly reduces the total explosive amount of one-time detonation, or reduces the maximum explosive amount in one-time detonation by adopting a delayed detonation technology; particularly, the explosive concentration can be reduced and the peak value of the blasting vibration velocity can be reduced by selecting the explosive type, adjusting the excavation footage, the priming section position, the explosive quantity arrangement parameters and the like, but the blasting construction progress is slow at the same time; in order to control the particle vibration speed of the upper exposed laying pipeline in the tunnel construction, a practical temporary pipeline damping support is needed to replace the original pipeline support in the construction, and the purposes of improving the construction progress and guaranteeing the operation safety of the pipeline are achieved.

Among the prior art to among the oil pipeline shock attenuation support: one mode is damping by adopting a mode of mounting a rubber cushion on a C-shaped supporting plate, the damping effect is poor, a support can overturn due to independent work and cannot be assembled according to needs, the suspension type structural design and the damping control adaptability of a pipeline exposed in tunnel blasting construction are poor, and the like; the other is that the damping effect is lacked by using a spring damping measure, and the volume is heavier; the shock-absorbing pipe bracket in some city underground pipe gallery and the suspension type shock-absorbing bracket in the field of construction equipment installation can not meet the blasting shock-absorbing requirement of the surface laying pipeline in the tunnel blasting construction.

Based on the technical problems in the blasting construction pipeline damping support structure, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the weak point that exists in the above-mentioned technique, provide a blasting construction pipeline shock attenuation alarm support, aim at solving one of the poor, poor problem of shock attenuation effect of current shock attenuation alarm support adaptability.

The utility model provides a shock absorption alarm support for blasting construction pipelines, which comprises a support shock absorption unit, a pipeline clamping unit and a vibration detection alarm unit; the pipeline clamping unit comprises a lower bearing block and an upper pressing block, one side of the lower bearing block is rotatably connected with one side of the upper pressing block through a hinge, and the lower bearing block and the upper pressing block can be opened or buckled so as to be clamped on a pipeline; the vibration detection alarm unit is arranged at the top of the upper compaction block and comprises a vibration speed sensor; support the shock attenuation unit and set up in the bottom of lower bearing piece along vertical direction scalable regulation to the bottom that supports the shock attenuation unit is equipped with the gyro wheel.

Furthermore, rubber linings are respectively arranged in the lower bearing block and the upper pressing block, and arc-shaped surfaces are arranged in the rubber linings; when the lower bearing block and the upper pressing block are buckled, the arc surfaces of the rubber linings in the lower bearing block and the upper pressing block can form an oval clamping cavity; the other sides of the lower bearing block and the upper pressing block are provided with locking mechanisms, and each locking mechanism comprises a pull rod and a nut; the pull rod can penetrate through holes in the other sides of the lower bearing block and the upper pressing block and is locked through nuts.

Further, the vibration detection alarm unit comprises a shell, a singlechip mainboard and an alarm module; the shell is of a triangular structure; the shell is arranged on the top of the upper pressing block along the horizontal direction; the bottom of the shell is embedded with a spiral pin, and the height of the shell at the top of the upper compression block can be adjusted through the spiral pin; the top of the shell is provided with a leveling bubble; the single chip microcomputer mainboard and the vibration speed sensor are respectively arranged in the shell, and the vibration speed sensor is electrically connected with the single chip microcomputer mainboard; the warning module is arranged at the top of the shell.

Furthermore, the warning module comprises an alarm lamp and a buzzer, and the alarm lamp and the buzzer are respectively and electrically connected with the singlechip mainboard; the top of shell still is equipped with the USB interface, and the bottom of shell still is equipped with the power.

Further, support the shock attenuation unit and include a plurality ofly, a plurality ofly support the shock attenuation unit and set up side by side in the bottom of bearing the piece down to link into an integrated entity through horizontal pole and fastener between a plurality of support shock attenuation units.

Furthermore, the supporting and damping unit comprises a lower supporting sleeve and a lower supporting insertion pipe, the lower supporting insertion pipe is arranged in the lower supporting sleeve in a telescopic mode along the vertical direction, a locking mechanism is arranged at an opening in the top of the lower supporting sleeve and used for locking the relative displacement of the lower supporting sleeve and the lower supporting insertion pipe along the vertical direction; the gyro wheel sets up in lower support sheathed tube bottom, lower support sheathed tube top and the bottom fixed connection of lower bearing piece.

Furthermore, the supporting and damping unit also comprises an upper connecting pipe, and the bottom of the lower bearing block is provided with a flange; one end of the upper connecting pipe is fixedly connected with a flange plate of the flange, an outer screw thread is arranged at the convex part at the upper part of the flange plate, and a strip-shaped arc-shaped opening is arranged in the annular direction of the flange plate; the flange plate is screwed into the connecting hole at the bottom of the lower bearing block through the bulge, and the external screw thread is buckled with the internal screw thread in the connecting hole; the direction of the roller can be adjusted by the flange plate.

Furthermore, the direction of the roller is consistent with the movable direction of the original open laying pipeline rolling buttress; screw holes are formed in the circumferential direction of the connecting holes, and the lower bearing block penetrates through the screw holes through screws and is fixed to the bottom of the lower bearing block; an air spring damper is arranged on the upper connecting pipe along the vertical direction.

Furthermore, a bearing is arranged at the bottom of the lower supporting sleeve, the roller is rotatably arranged on the bearing through a connecting shaft, jacks are formed in the circumferential direction of the roller, and locking pins can be inserted into the jacks, so that the rotation of the roller is limited; the locking mechanism comprises a locking hoop and an eccentric pressing wheel; the locking hoop is sleeved on an opening in the top of the lower supporting sleeve, the eccentric pressing wheel is arranged on the locking hoop, and the size of the opening of the lower supporting sleeve can be adjusted through rotation, so that the lower supporting insertion tube is locked.

Furthermore, the lower bearing block and the upper pressing block are of shell structures made of aluminum alloy materials respectively.

The utility model provides a blasting construction pipeline shock attenuation warning support, can be according to the different weight of the pipeline of needs protection nimble increase the quantity of support, the structure easy dismounting, not occupation space; the pipeline blasting vibration control method can better adapt to pipeline blasting vibration control at different blasting vibration speeds and frequencies, and solves the problem that the traditional support structure cannot provide telescopic deformation for the pipeline when the temperature difference changes in tunnel blasting construction with a long construction period; the alarm threshold value that accessible singlechip was set for in advance realizes the pipeline velocity of vibration transfinites alarming function in the blasting construction, improves the construction security.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a front view of the shock-absorbing alarm bracket for blasting construction pipelines of the utility model;

FIG. 2 is an exploded view of the supporting and shock absorbing unit of the present invention;

FIG. 3 is an exploded view of the clamping unit of the present invention;

FIG. 4 is a top view of the structure of the casing of the vibration detection alarm unit of the present invention;

FIG. 5 is a bottom view of the structure of the casing of the vibration detecting alarm unit of the present invention;

fig. 6 is the system schematic diagram of the vibration detection alarm unit of the present invention.

In the figure: 1. a roller; 2. a bearing; 3. locking the pin; 4. a lower support fork; 5. an air spring damper; 6. a lower support sleeve; 7. a lower support cannula; 8. locking the hoop; 9. an eccentric pinch roller; 10. a fastener; 11. a horizontal bar; 12. an upper connecting pipe; 13. a flange; 14. a lower bearing block; 15. an upper compaction block; 16. a rubber lining; 17. a hinge; 18. a pull rod; 19. a nut; 20. a housing; 21. a helical leg; 22. connecting a screw rod; 23. leveling air bubbles; 24. a singlechip mainboard; 25. a vibration speed sensor; 26. a USB interface; 27. an alarm lamp; 28. a buzzer; 29. a power source.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 6, the utility model provides a shock absorption alarm support for blasting construction pipelines, which specifically comprises a support shock absorption unit, a pipeline clamping unit and a vibration detection alarm unit; the pipeline clamping unit comprises a lower bearing block 14 and an upper pressing block 15, one sides of the lower bearing block 14 and the upper pressing block 15 are rotatably connected through a hinge 17, and the lower bearing block 14 and the upper pressing block 15 can be opened or buckled so as to be clamped on a pipeline; specifically, the lower bearing block 14 and the upper pressing block 15 can be opened at any angle; further, a vibration detection alarm unit is arranged at the top of the upper compaction block 15, and the vibration detection alarm unit comprises a vibration speed sensor 25 for detecting the blasting vibration condition; furthermore, the supporting and damping unit is arranged at the bottom of the lower bearing block 14 in a telescopic and adjustable manner along the vertical direction, and the bottom of the supporting and damping unit is provided with a roller 1 to realize movement; specifically, the supporting and damping unit is arranged on the ground and can be connected into a whole through a fastener and a horizontal rod, so that the functions of supporting the load of an upper pipeline and damping and energy consumption are achieved; the bottom of the pipeline clamping unit is in threaded connection with a flange of the supporting and damping unit and is fixed by screws to prevent rotation, and the lower bearing block 14 and the upper pressing block 15 clamp the pipeline and are clamped by a pull rod 18 and a nut 19, so that the pipeline and the lower supporting and damping unit are well fixed; furthermore, the bottom of the shell of the vibration detection alarm unit is connected with the top surface of a pressing block 15 on the pipeline clamping unit into a whole through a screw, so that the vertical vibration speed generated by the pipeline can be detected in real time, and the alarm function of over-limit of the vibration speed of the pipeline in blasting construction is realized through the preset alarm threshold value of the single chip microcomputer; the utility model provides a shock absorption alarm support for blasting construction pipelines, which realizes the reliable connection between the support and the supported pipelines, freely selects and installs damping struts according to different weights of the pipelines, can be reinforced by horizontal rods and fasteners, enhances the integrity and is convenient to disassemble; meanwhile, the alarm can be given out under the condition that the set value is exceeded.

Preferably, in combination with the above solutions, as shown in fig. 1 to 6, rubber linings 16 are respectively arranged in the lower supporting block 14 and the upper pressing block 15, and arc surfaces are arranged in the rubber linings 16 for clamping the pipeline, so that the pipeline clamping unit and the pipeline can be well attached to each other due to the elastic action of the rubber linings 16; when the lower bearing block 14 and the upper pressing block 15 are buckled, the arc-shaped surfaces of the rubber lining 16 in the lower bearing block 14 and the upper pressing block 15 can form an oval clamping cavity; specifically, according to the diameters of common pipelines on site, the elliptical clamping cavities of the rubber linings 16 of the lower bearing block 14 and the upper pressing block 15 are divided into different sizes so as to meet the requirement of fixing pipelines with different diameters on site; the rubber lining 16 has large contact area with the pipeline, good elastic fitting effect and firm and reliable structure, and can avoid the pipeline falling and the pillar overturning easily which are easily caused by a supporting plate type structure; specifically, the lower bearing block 14 and the upper compression block 15 are of a U-shaped shell structure, rubber linings are fixed inside the U-shaped shell structure, the effect of good fixation with a pipeline passing through the U-shaped shell structure is achieved, a connecting hole is formed in the bottom of the lower bearing block, an inner screw thread is arranged in the hole, and a screw hole is formed in the periphery of the lower bearing block and used for being connected with a flange screw thread of an upper connecting pipe supporting the damping unit; furthermore, locking mechanisms are arranged on the other sides of the lower supporting block 14 and the upper pressing block 15, and each locking mechanism comprises a pull rod 18 and a nut 19; the tie rod 18 can be passed through the through holes on the other side of the lower bearing block 14 and the upper holding-down block 15 and locked by a nut 19.

Preferably, in combination with the above scheme, as shown in fig. 1 to 6, the vibration detection alarm unit includes a housing 20, a single chip microcomputer motherboard 24, and an alarm module; specifically, the housing 20 is a triangular structure; the shell 20 is arranged on the top of the upper pressing block 15 along the horizontal direction; a spiral pin 21 is embedded in the bottom of the shell 20, and the height of the shell 20 at the top of the upper pressing block 15 can be adjusted by the spiral pin 21; specifically, the spiral leg 21 is provided with a connecting screw 22, and the height adjustment in the vertical direction is realized through the connecting screw 22; further, a leveling bubble 23 is arranged at the top of the shell 20; the single chip microcomputer mainboard 24 and the vibration speed sensor 25 are respectively arranged in the shell 20, and the vibration speed sensor 25 is electrically connected with the single chip microcomputer mainboard 24; the alarm module is disposed on the top of the housing 20.

Preferably, in combination with the above scheme, as shown in fig. 1 to 6, the warning module includes an alarm lamp 27 and a buzzer 28, and the alarm lamp 27 and the buzzer 28 are electrically connected to the single chip microcomputer main board 24 respectively; the top of the housing 20 is also provided with a USB interface 26 and the bottom of the housing 20 is also provided with a power supply 29.

Preferably, in combination with the above solutions, as shown in fig. 1 to 6, the number of the supports of the support damping unit can be flexibly selected according to the self-weight of the upper pipeline, and the lower support sleeve 6 can be fixed with the horizontal rod into a whole through a fastener, so as to enhance the bearing capacity and stability of the whole unit; the method specifically comprises the following steps: the supporting and damping units comprise a plurality of supporting and damping units which are arranged at the bottom of the lower bearing block 14 side by side, and the supporting and damping units are connected into a whole through the horizontal rods 11 and the fasteners 10, so that the supporting stability is improved; further, the lower supporting block 114 and the upper pressing block 15 are respectively made of a shell structure made of an aluminum alloy material.

Preferably, in combination with the above solution, as shown in fig. 1 to 6, the support shock-absorbing unit includes a lower support sleeve 6 and a lower support insert tube 7; specifically, the lower support cannula 7 is telescopically arranged in the lower support cannula 6 along the vertical direction, an opening at the top of the lower support cannula 6 is provided with a locking mechanism, and the locking mechanism is used for locking the relative displacement of the lower support cannula 6 and the lower support cannula 7 along the vertical direction; the roller 1 is arranged at the bottom of the lower supporting sleeve 6, and the top of the lower supporting sleeve 6 is fixedly connected with the bottom of the lower supporting block 14; specifically, the lower support inserting tube 6 of the support damping unit is connected with the lower support sleeve 7 by a locking hoop and an eccentric pressing wheel, so that the requirements of pipeline support with different heights are met and the pipeline support is convenient to adjust.

Preferably, in combination with the above solution, as shown in fig. 1 to 6, the supporting and damping unit further includes an upper connecting pipe 12, and a flange 13 is provided at the bottom of the lower support block 14; specifically, one end of the upper connecting pipe 12 is fixedly connected with a flange of the flange 13, an outer screw thread is arranged at a convex part at the upper part of the flange, and a strip-shaped arc-shaped opening is arranged in the annular direction of the flange; the flange plate is screwed into a connecting hole at the bottom of the lower bearing block 14 through a bulge, and the external screw thread is buckled with the internal screw thread in the connecting hole; the flange can adjust the direction of the roller 1, and particularly, the adjustment of the direction of the roller 1 is controlled by the flange of the upper connecting pipe 12.

Preferably, in combination with the above solution, as shown in fig. 1 to 6, the direction of the roller 1 is consistent with the movable direction of the original plain pipeline rolling buttress; screw holes are formed in the circumferential direction of the connecting holes and are used for being in threaded connection with flanges of upper connecting pipes of the supporting and damping units; the lower bearing block 14 is fixed at the bottom of the lower bearing block 14 through a screw passing through a screw hole; furthermore, an air spring damper 5 is arranged on the upper connecting pipe 12 along the vertical direction, and the rigidity damping can be changed by an air pressure adjusting method according to the main vibration frequency and amplitude of the blasting vibration, so that the pipeline vibration speed caused by the blasting vibration is reduced; specifically, the energy transmitted by the blasting earthquake motion is absorbed by the air spring damper on the upper connecting pipe 12 at the lower part, the blasting vibration speed of the upper pipeline clamping unit and the pipeline is reduced, and the vibration detection early warning unit timely sends out an audible and visual alarm under the condition that the vibration speed exceeds a preset vibration speed control threshold value, so that early warning information is provided for field construction technicians, the safe operation of the existing pipeline is ensured, and the problems in the background art are solved.

Preferably, in combination with the above solutions, as shown in fig. 1 to 6, the roller 1 is a circular thick iron plate, and has a bearing hole in the middle thereof, and the insertion holes are uniformly distributed along the circumferential direction, and when the roller needs to be limited from rolling, the locking pin is inserted into the insertion hole and locked with the lower support fork, so as to prevent the pipeline from generating horizontal displacement; specifically, the bottom of the lower supporting sleeve 6 is provided with a bearing 2, the roller 1 is rotatably arranged on the bearing 2 through a connecting shaft, the circumference of the roller 1 is provided with a jack, and a locking pin 3 can be inserted into the jack, so that the rotation of the roller 1 is limited; specifically, the rolling direction of the roller 1 is consistent with the movable direction of the original open pipelaying rolling buttress, when the rolling 1 needs to be limited, the locking pin 3 is inserted into the circumferential insertion hole of the roller, and the roller 1 and the lower support fork 4 are locked into a whole so as to limit the rotation of the roller; specifically, the locking mechanism comprises a locking hoop 8 and an eccentric pressing wheel 9; the locking hoop 8 is sleeved on an opening in the top of the lower support sleeve 6, the eccentric pressing wheel 9 is arranged on the locking hoop 8, and the size of the opening of the lower support sleeve 6 can be adjusted through rotation, so that the lower support insertion tube 7 is locked; further, the heights of the ground on site are different and may not be in the same horizontal plane, so that the adjustment can be performed through the extension and contraction of the lower support sleeve 6 and the lower support insertion tube 7; specifically, when the pipe needs to be stretched, the locking hoop 8 is loosened, the lower support insertion pipe 7 is pulled upwards, the eccentric pressing wheel 9 is pressed after the length is adjusted, and friction force is provided by applying pressure to the opening of the pipe nozzle of the lower support sleeve 6, so that relative displacement along the length direction is limited; the mounting method of all the lower supports is the same as the step; in order to form a stress system for the lower support, the lower support is connected into a whole through the fastener 10 and the horizontal rod 11, and the functions of supporting the load of the upper pipeline and damping and dissipating energy are achieved together.

Preferably, in combination with the above scheme, as shown in fig. 1 to 6, the vibration detection alarm unit can monitor vibration data transmitted to the pipeline after energy consumption by the supporting and damping unit through the vibration speed sensor and the single chip microcomputer, and the vibration data, the pipeline clamping unit and the supporting and damping unit form a combined pipeline blasting damping and early warning system with adjustable parameters, so as to meet the requirements of blasting vibration control and pipeline protection in the construction of the open pipeline laying under the tunnel; specifically, as shown in fig. 6, the vibration alarm detection unit is composed of an AT89S51 single chip microcomputer, an HS109T vibration acceleration sensor, a buzzer 28, an LED alarm lamp 27 and other related technologies and elements; before tunnel blasting construction, firstly, connecting a USB interface 26 with a single chip microcomputer by using a computer indoors, communicating and setting alarm threshold parameters, installing 6 alkaline batteries No. 5 in a battery box of an alarm unit, and keeping stable working voltage at 9V; connecting a vibration detection alarm unit with the upper compaction block 15 on site, and finishing the installation of the whole combined pipeline damping alarm support after leveling; after the vibration alarm detection unit sends out early warning information, the pipeline vibration after the combined pipeline shock absorption alarm support is subjected to shock absorption is still large, at the moment, the rigidity of the air spring can be adjusted by increasing or decreasing the air pressure so as to provide proper rigidity or damping for the pipeline, and the pipeline shock absorption alarm support is better suitable for controlling the pipeline shock absorption at different shock absorption speeds and frequencies.

The utility model provides a blasting construction pipeline shock attenuation warning support, through installing the air spring attenuator on supporting the shock attenuation unit, regard air as the rebound medium, regard oil as the damping to carry out the energy dissipation shock attenuation to the vertical earthquake ground that tunnel blasting construction spread; the energy transmitted to the pipeline supporting structure by the blasting vibration is absorbed through the viscoelastic hysteresis deformation of the air spring damper, so that the reaction of the pipeline subjected to the blasting vibration is reduced, and the conditions of damage, leakage or burst and the like caused by the fact that the vibration speed of the pipeline structure exceeds a safe allowable range are effectively avoided; for horizontal direction blasting earthquake motion, relative horizontal sliding can be realized under the condition that the roller of the supporting damping unit is not locked, and the horizontal direction blasting earthquake motion effect is effectively reduced; when the local vibration exceeds a set threshold value, a signal measured by the vibration speed sensor is connected with the single chip microcomputer through AD conversion, an IO interface controls the alarm lamp to flicker, and an overrun early warning sound is sent out through the buzzer.

The utility model provides a blasting construction pipeline shock attenuation warning support, before wearing the blasting construction under the tunnel, need utilize shock attenuation warning support to replace former plain pavement rolling buttress, the step of implementing is: lifting the pipeline upwards by using a jack, keeping a gap between the pipeline and the original support about 5-10mm, and installing the pipeline clamping unit, the supporting damping unit and the vibration detection alarm unit in sequence; and (3) installing the damping alarm support below the pipeline according to the method, and removing the jack support after the adjustment is finished so that the exposed pipeline is located on the damping alarm support to complete the conversion of a stress system. After the tunnel underpass blasting construction is finished, the jack can be installed according to the steps to lift the pipeline again, the shock absorption alarm support is removed, the pipeline falls back to the original support, and the reset process of the pipeline is completed.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. A shock absorption alarm support for a blasting construction pipeline is characterized by comprising a supporting shock absorption unit, a pipeline clamping unit and a vibration detection alarm unit; the pipeline clamping unit comprises a lower bearing block (14) and an upper pressing block (15), one side of the lower bearing block (14) is rotatably connected with one side of the upper pressing block (15) through a hinge (17), and the lower bearing block (14) and the upper pressing block (15) can be opened or buckled so as to be clamped on a pipeline; the vibration detection alarm unit is arranged at the top of the upper pressing block (15), and comprises a vibration speed sensor (25); the supporting and damping unit is arranged at the bottom of the lower bearing block (14) in a telescopic adjusting mode along the vertical direction, and a roller (1) is arranged at the bottom of the supporting and damping unit.

2. The shock absorption alarm bracket for the blasting construction pipeline according to claim 1, wherein a rubber lining (16) is arranged in each of the lower supporting block (14) and the upper pressing block (15), and an arc-shaped surface is arranged in each rubber lining (16); when the lower bearing block (14) and the upper pressing block (15) are buckled, the arc-shaped surfaces of the rubber lining (16) in the lower bearing block (14) and the upper pressing block (15) can form an oval clamping cavity; the other sides of the lower bearing block (14) and the upper pressing block (15) are provided with locking mechanisms, and each locking mechanism comprises a pull rod (18) and a nut (19); the pull rod (18) can penetrate through holes in the other sides of the lower supporting block (14) and the upper pressing block (15) and is locked through the nut (19).

3. The shock absorption alarm bracket for the blasting construction pipeline according to claim 1, wherein the vibration detection alarm unit comprises a shell (20), a singlechip mainboard (24) and an alarm module; the shell (20) is of a triangular structure; the shell (20) is arranged at the top of the upper pressing block (15) along the horizontal direction; a spiral foot (21) is embedded in the bottom of the shell (20), and the height of the shell (20) at the top of the upper pressing block (15) can be adjusted through the spiral foot (21); a leveling bubble (23) is arranged at the top of the shell (20); the single chip microcomputer mainboard (24) and the vibration speed sensor (25) are respectively arranged in the shell (20), and the vibration speed sensor (25) is electrically connected with the single chip microcomputer mainboard (24); the warning module is arranged at the top of the shell (20).

4. The shock absorption alarm bracket for the blasting construction pipeline according to claim 3, wherein the warning module comprises a warning lamp (27) and a buzzer (28), and the warning lamp (27) and the buzzer (28) are respectively and electrically connected with the singlechip mainboard (24); the top of shell (20) still is equipped with USB interface (26), the bottom of shell (20) still is equipped with power (29).

5. The shock absorption alarm bracket for the blasting construction pipeline according to claim 1, wherein the supporting shock absorption units comprise a plurality of supporting shock absorption units, the supporting shock absorption units are arranged at the bottom of the lower bearing block (14) side by side, and the supporting shock absorption units are connected into a whole through a horizontal rod (11) and a fastener (10).

6. The shock-absorbing alarm bracket for the blasting construction pipeline according to claim 1, wherein the supporting shock-absorbing unit comprises a lower supporting sleeve (6) and a lower supporting insertion pipe (7), the lower supporting insertion pipe (7) is telescopically arranged in the lower supporting sleeve (6) along the vertical direction, and a locking mechanism is arranged at an opening at the top of the lower supporting sleeve (6) and used for locking the relative displacement of the lower supporting sleeve (6) and the lower supporting insertion pipe (7) along the vertical direction; the roller (1) is arranged at the bottom of the lower supporting sleeve (6), and the top of the lower supporting sleeve (6) is fixedly connected with the bottom of the lower supporting block (14).

7. The shock-absorbing alarm bracket for the blasting construction pipeline according to claim 6, wherein the supporting shock-absorbing unit further comprises an upper connecting pipe (12), and a flange (13) is arranged at the bottom of the lower supporting block (14); one end of the upper connecting pipe (12) is fixedly connected with a flange plate of the flange (13), an outer screw thread is arranged at a convex part at the upper part of the flange plate, and a long-strip arc-shaped opening is annularly arranged on the flange plate; the flange plate is screwed into a connecting hole at the bottom of the lower bearing block (14) through the bulge, and the outer screw thread is buckled with the inner screw thread in the connecting hole; the flange plate can adjust the direction of the roller (1).

8. The shock absorption alarm bracket for the blasting construction pipeline according to claim 7, wherein the direction of the roller (1) is consistent with the movable direction of the original open laying pipeline rolling buttress; screw holes are formed in the circumferential direction of the connecting holes, and the lower bearing block (14) penetrates through the screw holes through screws and is fixed to the bottom of the lower bearing block (14); an air spring damper (5) is arranged on the upper connecting pipe (12) along the vertical direction.

9. The shock absorption alarm bracket for the blasting construction pipeline is characterized in that a bearing (2) is arranged at the bottom of the lower support sleeve (6), the roller (1) is rotatably arranged on the bearing (2) through a connecting shaft, and jacks are formed in the circumferential direction of the roller (1) and can be inserted into locking pins (3) so as to limit the rotation of the roller (1); the locking mechanism comprises a locking hoop (8) and an eccentric pressing wheel (9); the locking hoop (8) is sleeved on an opening in the top of the lower support sleeve (6), the eccentric pressing wheel (9) is arranged on the locking hoop (8) and can rotate to adjust the size of the opening of the lower support sleeve (6) so as to lock the lower support insertion tube (7).

10. The shock-absorbing alarm bracket for the blasting construction pipeline according to claim 1, wherein the lower bearing block (14) and the upper pressing block (15) are respectively of a shell structure made of an aluminum alloy material.