CN116752988B - Tunnel entrance protection device - Google Patents
Tunnel entrance protection deviceInfo
- Publication number
- CN116752988B CN116752988B CN202310843234.1A CN202310843234A CN116752988B CN 116752988 B CN116752988 B CN 116752988B CN 202310843234 A CN202310843234 A CN 202310843234A CN 116752988 B CN116752988 B CN 116752988B
- Authority
- CN
- China
- Prior art keywords
- arc
- support
- shaped
- mounting
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
本发明属于隧道洞口防护技术领域，具体涉及一种隧道洞口防护装置，包括弧形支撑，弧形支撑前侧左右对称设有支撑条，两个空腔内均滑动密封装配有滑条，若干支撑杆上侧均滑动伸出支撑条，弧形遮挡件与两侧支撑条之间装配有回弹机构，横梁从左至右装配有若干安装孔，若干安装孔内部均装配有顶升机构，密封块上侧装配有阻挡罩，若干安装孔下侧内壁均设有与配送管连通的通孔，本发明当较大落石落在弧形遮挡件上侧时，便带动弧形遮挡件向下移动，并在不额外使用电器设备的情况下，带动若干阻挡罩快速顶出安装孔，对隧道内部的工作人员和施工车辆进行阻挡。
The present invention belongs to the technical field of tunnel entrance protection, and specifically relates to a tunnel entrance protection device, including an arc-shaped support, support bars are symmetrically provided on the left and right sides of the front side of the arc-shaped support, sliding strips are slidingly sealed in the two cavities, support bars are slidably extended from the upper sides of several support rods, a rebound mechanism is installed between the arc-shaped shielding member and the support bars on both sides, a crossbeam is equipped with several mounting holes from left to right, and a jacking mechanism is installed inside several mounting holes, a blocking cover is installed on the upper side of the sealing block, and the lower inner walls of several mounting holes are provided with through holes connected to the distribution pipe. When a large fallen rock falls on the upper side of the arc-shaped shielding member, the present invention drives the arc-shaped shielding member to move downward, and drives several blocking covers to quickly push out of the mounting holes without using additional electrical equipment, thereby blocking the staff and construction vehicles inside the tunnel.
Description
Technical Field
The invention belongs to the technical field of tunnel portal protection, and particularly relates to a tunnel portal protection device.
Background
The tunnel is an engineering building embedded in the stratum, is a form of utilizing underground space by human beings, can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel and a mine tunnel, and in the process of constructing in the tunnel, an arc-shaped piece is required to be used for supporting at a tunnel opening position to prevent mountain barren stones from falling at the tunnel opening position and injuring vehicles and staff, however, even if the arc-shaped piece is used for supporting for protection, certain dangers still exist after some larger barren stones fall, in the process of falling rocks, the staff and vehicles constructed in the tunnel cannot be timely perceived, and if the staff and vehicles walk out to have certain dangers in the process of falling larger barren stones, therefore, the design of the tunnel opening protection device for preventing the staff and the vehicles constructed in the tunnel from going out of the tunnel is quite necessary.
Disclosure of Invention
The invention aims to provide a tunnel portal protection device which is used for solving the problems existing in the background technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
The utility model provides a tunnel portal protector, includes the arc support, arc support front side bilateral symmetry is equipped with the support bar, two the inside cavity that all is equipped with of support bar, two equal sliding seal is equipped with the draw runner in the cavity, two equal fixedly connected with of draw runner upside a plurality of bracing pieces, a plurality of the support bar upside all slides and stretches out the support bar, a plurality of both sides the bracing piece is equipped with an arc jointly and shelters from the piece, be equipped with rebound mechanism between arc shelter and the both sides support bar, two the support bar is close to arc support one side and is equipped with the crossbeam jointly, the crossbeam is equipped with a plurality of mounting holes from left to right, a plurality of the inside climbing mechanism that all is equipped with of mounting hole, climbing mechanism is including the sealing block of sliding seal assembly in the mounting hole, the sealing block upside is equipped with the barrier cap, two the intercommunication is equipped with the delivery pipe that runs through the crossbeam between the cavity, a plurality of mounting hole downside inner wall all is equipped with the through-hole with the delivery pipe intercommunication.
The sealing block upside fixedly connected with telescopic link, telescopic link upper end and stop cover inner wall fixed connection, the telescopic link surface cover is equipped with first spring.
And buffer cushions are arranged at the upper ends of the plurality of blocking covers.
The spring back mechanism is including four spring back subassemblies, four spring back subassembly pairwise is a pair of respectively with two support bars fixed connection, spring back subassembly is including the mount pad with support bar fixed connection, the inside inner chamber that is equipped with of mount pad, the inside second spring that is equipped with of inner chamber, second spring upside fixedly connected with slider, the slider upside is connected with support piece, support piece upwards slides and stretches out the mount pad, support piece upper end is equipped with the connecting block with arc shielding piece fixed connection.
Be equipped with spacing subassembly between two mount pads that are connected with the support bar, spacing subassembly is including the dead lever, the both ends of dead lever respectively with two mount pad fixed connection, the both ends of dead lever all are equipped with the installation cavity, two the inner wall in installation cavity all is equipped with and runs through the hole that stretches out to the inner chamber, two all be equipped with the third spring in the installation cavity, two the one end all is kept away from each other to the third spring all is equipped with the kicking block, two the kicking block all is equipped with and runs through the arc locking piece that stretches out the hole and stretch into the inner chamber, the dead lever is equipped with the pulling component of being connected with two kicking blocks, the slider is equipped with the lockhole with arc locking piece assorted.
The middle part of the fixed rod is provided with a groove, the inner walls of the left side and the right side of the groove are respectively provided with a pulling hole connected with the installation cavity, two jacking blocks are respectively provided with a pulling rod on one side close to each other, and one ends of the two pulling rods respectively penetrate through the pulling holes and extend into the groove to be internally provided with a handle.
Hydraulic oil is injected into the two cavities.
The surface of the arc shielding piece is provided with a plurality of ventilation holes.
The invention has simple structure and ingenious design, when larger falling rocks fall on the upper side of the arc-shaped shielding piece, the arc-shaped shielding piece is driven to move downwards, and under the condition that electrical equipment is not additionally used, a plurality of blocking covers are driven to rapidly eject out of the mounting holes, workers and construction vehicles in the tunnel are blocked, the workers and the construction vehicles are prevented from going out of the tunnel when falling rocks, the arc-shaped shielding piece and the blocking covers can not reset immediately even if falling rocks fall from the arc-shaped shielding piece, and only after external personnel determine external safety, the arc-shaped shielding piece and the blocking covers are driven to reset, and at the moment, the workers in the tunnel can go out of the tunnel through the construction vehicles.
Drawings
The invention may be further illustrated by means of non-limiting examples given in the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of a cross-sectional structure of the present invention;
FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;
FIG. 5 is a schematic view of a partial structure of the present invention;
FIG. 6 is a schematic view of the construction of the arcuate shutter of the present invention;
FIG. 7 is a schematic cross-sectional view of a barrier shield according to the present invention;
the main reference numerals are as follows:
the arc-shaped support 1, the support bar 11, the cavity 111, the slide bar 12, the support bar 13, the arc-shaped shielding member 14, the cross beam 2, the mounting hole 21, the sealing block 22, the blocking cover 23, the distribution pipe 24, the through hole 25, the telescopic rod 3, the first spring 31, the mounting seat 32, the inner cavity 33, the second spring 34, the sliding block 35, the support 37, the connecting block 38, the fixed rod 4, the mounting cavity 41, the extending hole 42, the third spring 43, the top block 44, the arc-shaped locking member 45, the lock hole 46, the groove 5, the pulling hole 51, the pulling rod 52, the handle 53 and the ventilation hole 54.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following technical scheme of the present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-7, the tunnel portal protection device of the invention comprises an arc support 1, support bars 11 are symmetrically arranged on the front side of the arc support 1, cavities 111 are respectively arranged in the two support bars 11, sliding bars 12 are respectively and hermetically assembled in the two cavities 111, a plurality of support bars 13 are respectively and fixedly connected to the upper sides of the two sliding bars 12, the upper sides of the support bars 13 respectively and slidingly extend out of the support bars 11, an arc shielding piece 14 is jointly assembled on the support bars 13 on the two sides, a rebound mechanism is assembled between the arc shielding piece 14 and the support bars 11 on the two sides, a cross beam 2 is jointly assembled on one side of the two support bars 11 close to the arc support 1, a plurality of mounting holes 21 are assembled on the cross beam 2 from left to right, a jacking mechanism is respectively assembled in the plurality of mounting holes 21, the jacking mechanism comprises a sealing block 22 which is hermetically assembled in the mounting holes 21, a blocking cover 23 is assembled on the upper side of the sealing block 22, a distribution pipe 24 penetrating through the cross beam 2 is communicated between the two cavities 111, and through holes 25 communicated with the distribution pipe 24 are respectively arranged on the inner walls on the lower sides of the mounting holes 21.
The arc-shaped support 1 is arranged at the inner opening of a tunnel hole, the arc-shaped shielding piece 14 is arranged at the outer side of the opening, the cross beam 2 is buried in the ground, the arc-shaped support 1 supports the inner wall of the opening to prevent collapse of the opening, and the arc-shaped shielding piece 14 is arranged at the outer side of the opening to block external rolling stones and prevent damage to vehicles and personnel entering and exiting the tunnel due to falling stones;
When larger rolling stones fall down, the sealing blocks 22 in the mounting holes 21 are driven to move upwards by the sealing blocks 22, the blocking covers 23 are driven to extend upwards to the mounting holes 21 by the sealing blocks 22, and after the blocking covers 23 extend out of the mounting holes 21, a plurality of blocking covers 23 are arranged at the position of a hole, vehicles and staff in a tunnel can be blocked, the vehicles and staff in the tunnel can be blocked, and the vehicles and staff in the tunnel can be blocked from going out of the tunnel after the rolling stones with larger weight fall down on the upper side of the arc-shaped shielding pieces 14 by the design, and under the condition that other electrical equipment is not used, the blocking covers 23 are quickly guaranteed to extend out of the mounting holes 21, the safety of life workers and the life workers can be guaranteed.
The sealing block 22 upside fixedly connected with telescopic link 3, telescopic link 3 upper end and the inner wall fixed connection of blocking cover 23, telescopic link 3 surface cover is equipped with first spring 31.
When the sealing block 22 moves upwards, the blocking cover 23 is driven by the telescopic rod 3 to rapidly extend out of the mounting hole 21, however, when people and vehicles are located right above the blocking cover 23, the blocking cover 23 is blocked and cannot move upwards, so that the telescopic rod 3 and the first spring 31 start to compress in the process of moving the sealing block 22 upwards, and therefore, in the process of moving the sealing block 22 upwards, the blocking cover 23 cannot be forced to extend out of the mounting hole 23 under the condition that the blocking cover 23 is blocked, and in such a design, when one or more of the blocking covers 23 are blocked by people or vehicles, the blocking cover 23 cannot be driven to forcibly extend out of the mounting hole 21, and injuries are caused to the vehicles and the people on the upper side of the blocking cover 23.
The upper ends of the plurality of blocking covers 23 are respectively provided with a buffer cushion. The cushion design reduces the impact of the hood 23 moving upward, i.e., on the upper person and vehicle.
The rebound mechanism comprises four rebound components, each pair of four rebound components is fixedly connected with two supporting strips 11 respectively, each rebound component comprises a mounting seat 32 fixedly connected with each supporting strip 11, an inner cavity 33 is formed in each mounting seat 32, a second spring 34 is arranged in each inner cavity 33, a sliding block 35 is fixedly connected to the upper side of each second spring 34, a supporting piece 37 is connected to the upper side of each sliding block 35, each supporting piece 37 slides upwards to extend out of each mounting seat 32, and a connecting block 38 fixedly connected with the arc-shaped shielding piece 14 is arranged at the upper end of each supporting piece 37.
When larger rolling stones fall on the arc-shaped shielding piece 14, the arc-shaped shielding piece 14 is driven to move downwards, the arc-shaped shielding piece 14 drives the connecting block 38 to move downwards, the connecting block 38 drives the sliding block 35 to move downwards in the inner cavity 33 through the supporting piece 37, the second spring 34 can be driven to compress, after the falling stones are completed, the second spring 34 stretches to drive the sliding block 35 to move upwards for resetting, and the sliding block 35 drives the arc-shaped shielding piece 14 to move upwards for resetting through the supporting piece 37.
Be equipped with spacing subassembly between two mount pads 32 that are connected with support bar 11, spacing subassembly is including dead lever 4, the both ends of dead lever 4 respectively with two mount pads 32 fixed connection, the both ends of dead lever 4 all are equipped with installation cavity 41, the inner wall in two installation cavities 41 all is equipped with and runs through to the hole 42 that stretches out of inner chamber 33, all be equipped with third spring 43 in two installation cavities 41, two third spring 43 keep away from each other one end all is equipped with kicking block 44, two kicking blocks 44 all are equipped with and run through the arc locking piece 45 that stretches into inner chamber 33 that stretches out the hole 42, dead lever 4 is equipped with the pulling component that is connected with two kicking blocks 44, slider 35 is equipped with arc locking piece 45 assorted lockhole 46.
When the arc-shaped shielding piece 14 moves downwards, the supporting piece 37 and the sliding block 35 are driven to move downwards through the connecting block 38, when the lower end of the sliding block 35 extrudes the arc-shaped locking piece 45, the end face of the arc-shaped locking piece 45 is arc-shaped, so that the arc-shaped locking piece 45 is extruded to be retracted into the installation cavity 41, the ejector block 44 is driven to move in the inner cavity 33, the third spring 43 is driven to compress until the sliding block 35 moves over the arc-shaped locking piece 45, after the position of the lock hole 46 is matched with that of the arc-shaped locking piece 45, under the action of the stretching of the third spring 43, the ejector block 44 is driven to eject the arc-shaped locking piece 45, the arc-shaped locking piece 45 is ejected into the lock hole 46, and therefore the position of the sliding block 35 can be limited, after falling rocks fall on the upper side of the arc-shaped shielding piece 14, the sliding block 35 cannot reset immediately under the stretching action of the second spring 34, so that the arc-shaped shielding piece 14 cannot be driven to reset immediately, so as to keep the state of extruding the air in the mounting holes 21, keeping the plurality of blocking covers 23 in the state of extending out of the mounting holes 31, continuously ensuring the blocking of the blocking covers 23 to personnel and vehicles in the tunnel, only after the outside personnel observe that the blocking covers are in a safe state, pulling the components to drive the two jacking blocks 44 in the fixed rod 4 to be close to each other, compressing the two third springs 43 until the arc-shaped locking pieces 45 at two sides are moved out of the locking holes 46 at two sides, thus canceling the limit of the sliding blocks 35, under the action of the extension of the second springs 34, the sliding blocks 35 are driven to move upwards to drive the arc-shaped shielding pieces 14 to move upwards to reset, after the arc-shaped shielding pieces 14 move upwards to reset, the sliding strips 12 are driven to move upwards in the cavity 111 to reset through the plurality of supporting rods 13, so that negative pressure is formed in the cavity 111, the air is sucked into the cavity 111 from the plurality of mounting holes 21, thereby driving the sealing block 22 to move downwards under the action of negative pressure, and driving the blocking cover 23 to be retracted downwards into the mounting hole 21.
The middle part of the fixed rod 4 is provided with a groove 5, the inner walls of the left side and the right side of the groove 5 are respectively provided with a pulling hole 51 connected with the installation cavity 41, one side, close to each other, of the two top blocks 44 is respectively provided with a pulling rod 52, and one ends of the two pulling rods 52 penetrate through the pulling holes 51 and extend into the groove 5 to be assembled with a handle 53.
When outside personnel observe that falling rocks are no longer occurring, two workers stand beside the fixed rods 4 at the two sides respectively and pull the two handles 53 at the two sides simultaneously, the push blocks 44 at the two sides are driven to approach each other by the pull rods 52, and the third springs 43 at the two sides start to compress, so that the limit on the sliding blocks 35 is canceled.
Hydraulic oil is injected into both cavities 111. The design of the hydraulic oil may improve the ejection efficiency for several sealing blocks 22.
Arcuate shutter 14 surface a plurality of ventilation holes 54 are provided. The design of the plurality of ventilation holes 54 can also maintain ventilation effect while keeping the arc-shaped shielding member 14 capable of blocking falling rocks.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310843234.1A CN116752988B (en) | 2023-07-11 | 2023-07-11 | Tunnel entrance protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310843234.1A CN116752988B (en) | 2023-07-11 | 2023-07-11 | Tunnel entrance protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116752988A CN116752988A (en) | 2023-09-15 |
| CN116752988B true CN116752988B (en) | 2025-08-29 |
Family
ID=87957119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310843234.1A Active CN116752988B (en) | 2023-07-11 | 2023-07-11 | Tunnel entrance protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116752988B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309554A (en) * | 2021-08-02 | 2021-08-27 | 江苏双鹏钢结构工程有限公司 | A tunnel reinforcement device for tunnel engineering |
| CN114411581A (en) * | 2022-01-07 | 2022-04-29 | 袁青松 | Rock fall preventing equipment for railway tunnel portal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4007710C2 (en) * | 1990-03-10 | 1995-04-06 | Dyckerhoff & Widmann Ag | Process for manufacturing a railway superstructure in a tunnel |
| US6554368B2 (en) * | 2000-03-13 | 2003-04-29 | Oil Sands Underground Mining, Inc. | Method and system for mining hydrocarbon-containing materials |
| CN210289790U (en) * | 2019-08-28 | 2020-04-10 | 朱荣辉 | Collapse slope stratum tunnel portal reinforced structure |
| CN212958684U (en) * | 2020-06-15 | 2021-04-13 | 陈叶琦 | Energy-concerving and environment-protective tunnel construction entrance to a cave bearing structure |
| CN115095344A (en) * | 2022-06-23 | 2022-09-23 | 义乌工商职业技术学院 | Tunnel portal construction support protection device and use method thereof |
| CN115962002A (en) * | 2023-01-03 | 2023-04-14 | 浙江交工集团股份有限公司 | Local dust collecting equipment is used in tunnel |
-
2023
- 2023-07-11 CN CN202310843234.1A patent/CN116752988B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309554A (en) * | 2021-08-02 | 2021-08-27 | 江苏双鹏钢结构工程有限公司 | A tunnel reinforcement device for tunnel engineering |
| CN114411581A (en) * | 2022-01-07 | 2022-04-29 | 袁青松 | Rock fall preventing equipment for railway tunnel portal |
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| Publication number | Publication date |
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| CN116752988A (en) | 2023-09-15 |
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