CN115162295B - Safety protection net for tunnel construction of hidden culvert - Google Patents
Safety protection net for tunnel construction of hidden culvert Download PDFInfo
- Publication number
- CN115162295B CN115162295B CN202210579188.4A CN202210579188A CN115162295B CN 115162295 B CN115162295 B CN 115162295B CN 202210579188 A CN202210579188 A CN 202210579188A CN 115162295 B CN115162295 B CN 115162295B
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- Prior art keywords
- culvert
- groove
- safety net
- block
- support
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 46
- 238000007667 floating Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000005641 tunneling Effects 0.000 claims 5
- 230000000630 rising effect Effects 0.000 abstract description 5
- 206010013647 Drowning Diseases 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/12—Respiratory apparatus with fresh-air hose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Sewage (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention belongs to the field of culvert dredging, and particularly relates to a safety protection net for tunnel construction of a culvert, which comprises support columns, support arms A, support arms B, a breathing mechanism, a cross rod, a safety net, an opening, a floating ball, weft ropes, warp ropes and connecting blocks, wherein the two support columns are vertically fixed in the culvert from outside an outlet of the culvert; when the water surface in the blind culvert rises rapidly, the hinge points of the two support arms A and the connecting block on the safety net are firstly disconnected under the pulling of all floating balls, and the hinge points of the two support arms B and the connecting block on the safety net are disconnected immediately following the disconnection of the hinge points of the support arms A and the connecting block, so that the safety net floats on the rising water surface around the cross rod, and the flowing water which flows rapidly is not blocked. When a desilting person in the culvert is flushed to the safety net by the rapidly-rising flowing water, a drowning person can grasp the safety net to fix the body and rapidly escape from an access opening of the culvert in time.
Description
Technical Field
The invention belongs to the field of culvert dredging, and particularly relates to a safety protection net for construction of a culvert tunnel.
Background
The meaning of the meaning is that in highway engineering construction, in order to make the highway pass smoothly through the canal without obstructing traffic, a drainage duct or a water channel is arranged below the roadbed and built below the road surface.
Many garbage washed by rain often floats in the culvert as a water passage, and the garbage cannot be cleaned in time, so that running water in the culvert is smelly. If the odoriferous water is discharged into municipal waterways, water pollution can be caused. Therefore, in order to ensure that the water quality in the culvert is not polluted, the garbage in the culvert must be cleaned frequently, and a certain safety guarantee is necessary for the construction operation in the culvert.
In addition, the collection of garbage in the culvert is a problem to be solved.
The invention designs a safety protection net for the construction of a hidden culvert tunnel, which solves the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a safety protection net for the construction of a hidden culvert tunnel, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that, the terms "inner", "outer", "upper", "lower", and the like indicate an orientation or a positional relationship based on that shown in the drawings, or an orientation or a positional relationship conventionally put in use of the inventive product, merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured or operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The utility model provides a safety protection net for hidden culvert tunnel construction, it includes support column, support arm A, support arm B, breathing mechanism, horizontal pole, safety net, opening, floater, latitude rope, warp rope, connecting block, wherein two support columns are fixed in the hidden culvert from outside the access & exit of hidden culvert vertically; one end of the safety net, which is equal to the width of the culvert gateway, is arranged on the cross bars at the top ends of the two support columns, and the other end of the safety net is provided with a plurality of floating balls which are evenly distributed along the width direction of the culvert gateway.
A pair of detachable support arms B and a pair of detachable support arms A are arranged on the two support columns from top to bottom; the tail ends of the two support arms A and the two support arms B are respectively hinged with four connecting blocks symmetrically arranged on two sides of the safety net. The hinge point of the safety net with the length larger than the height of the culvert and the support arm A is positioned below the water surface in the culvert, and the two support arms A and the two support arms B support and stretch the part of the safety net which is equivalent to the cross section area of the culvert completely, so that the safety net can effectively intercept garbage floating on the water surface in the culvert. The hinge points of the support arm A and the connecting block and the hinge points of the support arm B and the connecting block are sequentially disconnected along with the rise of the liquid level of the water in the culvert under the pulling of the floating ball with gradually increased buoyancy, so that the safety net can float on the water surface when the water surface rises in the culvert, and a drowner can grasp the safety net to escape from the culvert entrance conveniently.
The middle part of the safety net is provided with an opening which is convenient for people to unblock in the blind culvert and corresponds to the blind culvert entrance; two weft ropes which are transversely pulled are symmetrically arranged at the upper end and the lower end in the opening, and two warp ropes which reduce the opening area when the hinge point of the support arm B and the connecting block is disconnected are in sliding fit left and right between the two weft ropes and are convenient for drowners to grasp along with running water.
Two breathing mechanisms for the drowning person to breathe in the blind are symmetrically arranged on the two support columns.
As a further improvement of the technology, the lower ends of the support columns are in threaded fit with the internal thread sleeves fixed at the bottoms of the culverts through bolts, so that the lower ends of the two support columns are effectively fixed. The fixed plates with two ends respectively nested on the two support columns are fixed at the blind culvert entrance through bolts, so that the upper ends of the two support columns are effectively fixed. The cross rod is arranged at the top ends of the two support columns through bolts; the upper end of the safety net is uniformly provided with a plurality of hanging rings which are nested on the cross rod along the width direction of the safety net, and the support arm A and the support arm B are detachably arranged on the two support columns through bolts.
As a further improvement of the technology, two connecting blocks hinged with the pair of support arms A are respectively arranged in two gaps A on two sides of the safety net, and two connecting blocks hinged with the pair of support arms B are respectively arranged in two gaps B on two sides of the safety net. The ring groove C on the outer side of the connecting block is rotatably matched with a ring sleeve, the ring sleeve is connected with the upper half section of the broken part of the side rope on the side of the safety net at the notch A or the notch B, and the fixed block B arranged on the connecting block is connected with the lower half section of the broken part of the side rope on the side of the safety net at the notch A or the notch B; u seats are arranged at the tail ends of the support arm A and the support arm B; two round pins are symmetrically arranged on the two inner sides of the U seat, and clamping blocks are arranged at the tail ends of each round pin; two clamping blocks mounted on the same U seat rotate in two circular grooves A in the corresponding connecting blocks around the central axis of the circular pin, and the circular pin is matched with a sliding groove A on the side wall of the connecting block, which is communicated with the corresponding side circular groove A; the inner wall of the circular groove A is provided with a separating opening which is convenient for the clamping block to separate from the connecting block.
As a further improvement of the technology, a swing groove B is formed at the position of a separation opening of the connecting block installed in the notch A, and a baffle B for opening and closing the separation opening is hinged in the swing groove B so as to prevent the connection between the support arm A and the connecting block from being disconnected due to carelessly swinging the floating ball end of the safety net in the installation process. A sliding groove B is formed in the inner wall of the swing groove B, a sliding block B and a sliding block C are arranged in the sliding groove B in a sliding manner along the central axis direction of the ring sleeve, and the sliding block C is connected with the sliding block B through a spring B; the tip cone arranged on the end face of the sliding block B is matched with a cone groove on the side wall of the corresponding baffle B; the screw rod which is in rotary fit with the round groove B on the sliding block C is in threaded fit with the threaded hole on the connecting block; the tail end of the screw rod is provided with a torsion wheel.
As a further improvement of the technology, two guide blocks B are symmetrically arranged on the sliding block B, and the two guide blocks B respectively slide in two guide grooves B on the inner wall of the sliding groove B. The cooperation of the guide block B and the guide groove B plays a role in positioning and guiding the sliding block B in the sliding groove B. Two guide blocks C are symmetrically arranged on the sliding block C, and the two guide blocks C slide in the two guide grooves B respectively. The cooperation of the guide block C and the guide groove B plays a role in positioning and guiding the sliding of the sliding block C in the sliding groove B. The circular ring arranged on the screw rod rotates in the annular groove D on the inner wall of the circular groove D, so that the screw rod and the sliding block C only rotate relatively and cannot move relatively axially.
As a further improvement of the technology, an arc block with the same central axis as the circular groove A is arranged on a connecting block arranged in the notch B, the swing groove A on the inner wall of the arc block is matched with a hanging rod arranged on one U seat, and two clamping rings are nested on the hanging rod. The two ends of the clamping block are provided with rotating cambered surfaces matched with the corresponding circular grooves A, so that the contact area of the clamping block and the inner cylindrical surface of the annular groove A is increased, the rotating abrasion of the clamping block in the circular grooves A is reduced, and the rotation of the clamping block in the circular grooves A is more stable. Two ends of the warp rope are respectively connected with slip rings nested on the two weft ropes; each warp rope is connected with a fixed block A arranged at the side of the other warp rope on the safety net through two symmetrically distributed elastic ropes; two pull ropes are symmetrically arranged on each warp rope, and the two pull ropes are respectively connected with two clamping rings on the same side by bypassing a traction sleeve fixed on the safety net.
As a further improvement of the technology, the breathing mechanism comprises a supporting rod, a containing sleeve, a breathing hose, a filter screen, a sealing cover, a baffle A, a bolt, a clamping plate, a sliding block A and a spring A, wherein the supporting rod with the upper end positioned above the blind gateway is arranged on a corresponding supporting column through a bolt; the lower end of the supporting rod is provided with a containing sleeve communicated with the upper breathing groove of the supporting rod; a sliding block A is arranged in the accommodating sleeve in a sliding way, and a spring A for resetting the sliding block A is arranged in the accommodating sleeve; a baffle A for opening and closing the accommodating sleeve is hinged at the opening of the accommodating sleeve and is closed by a bolt; a plurality of elastic clamping plates which are uniformly distributed on the periphery of the pin are matched with the annular groove B on the inner wall of the slot on the end surface of the containing sleeve; the bolt is connected with two sides of the middle part of the safety net through ropes; a breathing hose is arranged in the breathing groove on the supporting rod, and the part of the lower end of the breathing hose which is wound together is positioned in the space between the sliding block A and the baffle A in the accommodating sleeve; a notch at the upper end of the breathing groove is provided with a ring groove A, and a filter screen connected with the upper end of the breathing hose is arranged in the ring groove A; the notch of the ring groove A is provided with a sealing cover for preventing dust from entering.
As a further improvement of the present technology, the spring a is a compression spring; one end of the spring A is connected with the inner wall of the accommodating sleeve, and the other end of the spring A is connected with the end face of the sliding block A; two guide blocks A are symmetrically arranged on the sliding block A, and the two guide blocks A respectively slide in two guide grooves A on the inner wall of the accommodating sleeve. The matching of the guide block A and the guide groove A plays a role in positioning and guiding the sliding of the sliding block A in the accommodating sleeve.
As a further improvement of the technology, the support column is provided with the culvert water level monitoring acousto-optic early warning device, so as to monitor the rising of the water level in the culvert caused by raining, water discharge of an upstream water warehouse, municipal pipeline cleaning or other upstream unknown water and other conditions, and provide a more sensitive early warning signal for quick evacuation of the culvert construction operators and mechanical equipment, thereby achieving the purpose of guaranteeing the safety of the operators and the mechanical equipment.
Compared with the traditional protection network for the dredging operation of the culvert, the protection network can effectively intercept the garbage carried by the flowing water in the culvert when the water is not fluctuated in the culvert, and is convenient for dredging workers in the culvert to effectively clean the culvert. Meanwhile, the safety net in a state of intercepting the floating garbage on the water surface in the culvert does not form a hindrance to the passage of dredging workers in the culvert.
When the water surface in the blind culvert rises rapidly, the hinge points of the two support arms A and the connecting block on the safety net are firstly disconnected under the pulling of all floating balls, and the hinge points of the two support arms B and the connecting block on the safety net are disconnected immediately following the disconnection of the hinge points of the support arms A and the connecting block, so that the safety net floats on the rising water surface around the cross rod, and the flowing water which flows rapidly is not blocked. When a desilting person in the culvert is flushed to the safety net by the rapidly-rising flowing water, a drowning person can grasp the safety net to fix the body and rapidly escape from an access opening of the culvert in time.
When the hinge point of the support arm B and the safety net connecting block is disconnected, two warp ropes in the opening of the safety net instantaneously and relatively slide to the middle of the opening, so that the grabbing probability of drowners passing through the safety net on the safety net is improved, and the self-rescue efficiency of the drowners is improved.
In addition, two breathing mechanisms installed on two support columns can provide oxygen for drowners who cannot timely come out from below the water surface, so that the drowners are prevented from losing life due to failure to timely escape from the connotation. The invention has simple structure and better use effect.
Drawings
FIG. 1 is a schematic view of an installation section of the present invention in the implication.
Fig. 2 is a schematic cross-sectional view of three partial installations of the present invention.
Fig. 3 is an overall schematic diagram of the invention from two perspectives.
Fig. 4 is a schematic cross-sectional view of the side rope, the loop, the connecting block and the fixing block B.
Fig. 5 is a schematic cross-sectional view of the U-shaped seat, round pin, clamping block, connecting block, ring sleeve, fixing block B and side rope.
Fig. 6 is a schematic cross-sectional view of the fitting of the connecting block, the clamping block and the baffle B.
Fig. 7 is a schematic cross-sectional view of the cooperation of the baffle B, the tip cone, the slider B, the spring B, the slider C, the screw and the torsion wheel.
Fig. 8 is a schematic cross-sectional view of the connection block, arc block, hanging rod and U-seat.
FIG. 9 is a cross-sectional view of the mounting arm B, U, the connecting block, and the latch.
Fig. 10 is a schematic diagram of the cooperation of the safety net, weft, warp and pull cords.
FIG. 11 is a schematic cross-sectional view of a partial engagement of a safety net, weft, warp and pull cords.
FIG. 12 is a schematic diagram showing the cooperation of the arm A and the U seat, and the cooperation of the arm B and the U seat.
Fig. 13 is a schematic cross-sectional view of a connection block and its two views.
Fig. 14 is a schematic partial cross-sectional view of a respiratory mechanism and its three views.
Fig. 15 is a schematic cross-sectional view of the engagement of the latch, baffle a and the receiving sleeve.
Figure 16 is a schematic cross-sectional view of a strut and receiving sleeve.
Fig. 17 is a schematic cross-sectional view of an arc block and a slider C.
Fig. 18 is a schematic view of a security mesh.
Reference numerals in the figures: 1. dark culvert; 2. an access opening; 3. a support column; 4. an internal thread sleeve; 5. a bolt; 6. a support arm A; 7. a U-shaped seat; 9. round pins; 10. a clamping block; 11. rotating the cambered surface; 12. a support arm B; 13. a hanging rod; 14. a fixing plate; 15. a breathing mechanism; 16. a support rod; 17. a breathing groove; 18. a receiving sleeve; 19. a guide groove A; 20. a slot; 21. a ring groove B; 22. a breathing hose; 23. a filter screen; 24. a cover; 25. a baffle A; 26. a plug pin; 27. a clamping plate; 28. a sliding block A; 29. a guide block A; 30. a spring A; 31. a cross bar; 32. hanging rings; 33. a safety net; 34. a side rope; 35. a notch A; 36. a notch B; 37. an opening; 38. a floating ball; 39. weft ropes; 40. a slip ring; 41. a warp rope; 43. an elastic rope; 44. a fixed block A; 45. a pull rope; 46. a traction sleeve; 47. a clasp; 48. an arc block; 49. a swinging groove A; 50. a connecting block; 51. a ring groove C; 52. round groove A; 53. a chute A; 54. a swinging groove B; 55. a chute B; 56. a guide groove B; 57. a threaded hole; 58. a baffle B; 59. a conical groove; 60. a tip cone; 61. a sliding block B; 62. a guide block B; 63. a spring B; 64. a sliding block C; 65. a ring groove D; 66. a guide block C; 67. a circular ring; 68. a screw; 69. twisting wheels; 70. a ring sleeve; 71. a fixed block B; 72. a disengagement port; 73. a ring groove A; 74. round groove B.
Detailed Description
The drawings are schematic representations of the practice of the invention to facilitate understanding of the principles of operation of the structure. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 3, the artificial culvert comprises a support column 3, a support arm A6, a support arm B12, a breathing mechanism 15, a cross rod 31, a safety net 33, an opening 37, a floating ball 38, a weft 39, a warp 41 and a connecting block 50, wherein as shown in fig. 1 and 2, two support columns 3 are vertically fixed in the culvert 1 from the outside of an access opening 2 of the culvert 1; as shown in fig. 1,2 and 3, one end of a safety net 33 with the same width as the gateway 2 of the culvert 1 is installed on the cross bars 31 at the top ends of the two support columns 3, and a plurality of floating balls 38 uniformly distributed along the width direction of the gateway 2 of the culvert 1 are installed at the other end of the safety net 33.
As shown in fig. 3, a pair of detachable support arms B12 and a pair of detachable support arms A6 are mounted on the two support columns 3 from top to bottom; as shown in fig. 5 and 6, the ends of the two arms A6 and B12 are hinged to four connection blocks 50 symmetrically installed at both sides of the safety net 33, respectively. As shown in fig. 1 and 3, the hinge point of the safety net 33 with the length greater than the height of the culvert 1 and the support arm A6 is located below the water surface in the culvert 1, and the two support arms A6 and the two support arms B12 support and stretch the part of the net which is equivalent to the cross-sectional area of the culvert 1, so that the safety net 33 can effectively intercept the garbage floating on the water surface in the culvert 1. The hinge points of the support arm A6 and the connecting block 50 and the hinge points of the support arm B12 and the connecting block 50 are sequentially disconnected along with the rise of the water level in the culvert 1 under the pulling of the floating ball 38 with gradually increased buoyancy, so that the safety net 33 can conveniently float on the water surface when the water surface rises in the culvert 1, and a drowner can conveniently grasp the safety net 33 to escape from the gateway 2 of the culvert 1.
As shown in fig. 1 and 18, the middle part of the safety net 33 is provided with an opening 37 which is convenient for people to clear in the culvert 1 and corresponds to the gateway 2 of the culvert 1; as shown in fig. 10 and 11, two weft ropes 39 are symmetrically arranged at the upper and lower ends in the opening 37, and two warp ropes 41 which reduce the area of the opening 37 when the hinge point of the support arm B12 and the connecting block 50 is disconnected and are convenient for drowners moving along with running water to grasp are arranged between the two weft ropes 39 in a sliding fit manner.
As shown in fig. 3, two breathing mechanisms 15 for breathing by drowners in the culvert 1 are symmetrically arranged on the two support columns 3.
As shown in fig. 1 and 2, the lower ends of the support columns 3 are in threaded fit with the internal thread sleeves 4 fixed at the bottom of the culvert 1 through bolts 5, so that the lower ends of the two support columns 3 are effectively fixed. As shown in fig. 1,2 and 3, the fixing plates 14 with two ends respectively nested on the two support columns 3 are fixed at the entrance 2 of the culvert 1 through bolts 5, so that the upper ends of the two support columns 3 are effectively fixed. As shown in fig. 2,3 and 18, a cross bar 31 is mounted on top of two support columns 3 by bolts 5; the upper end of the safety net 33 is uniformly provided with a plurality of hanging rings 32 which are nested on the cross rod 31 along the width direction, and the support arm A6 and the support arm B12 are detachably arranged on the two support columns 3 through bolts 5.
As shown in fig. 3, 4 and 8, two connection blocks 50 hinged to the pair of arms A6 are respectively installed in two notches a35 on both sides of the safety net 33, and two connection blocks 50 hinged to the pair of arms B12 are respectively installed in two notches B36 on both sides of the safety net 33. As shown in fig. 4, 9 and 18, a ring sleeve 70 is rotatably matched in a ring groove C51 at the outer side of the connecting block 50, the ring sleeve 70 is connected with the upper half section of the side rope 34 at the broken position of the notch a35 or the notch B36 at the side of the safety net 33, and a fixed block B71 arranged on the connecting block 50 is connected with the lower half section of the side rope 34 at the broken position of the notch a35 or the notch B36 at the side of the safety net 33; as shown in fig. 5, 8 and 12, the tail ends of the support arm A6 and the support arm B12 are respectively provided with a U seat 7; two round pins 9 are symmetrically arranged on the inner sides of the two U-shaped seats 7, and clamping blocks 10 are arranged at the tail ends of each round pin 9; as shown in fig. 6, 9 and 13, two clamping blocks 10 mounted on the same U seat 7 rotate around the central axis of the round pin 9 in two round grooves a52 in the corresponding connecting block 50, and the round pin 9 is matched with a sliding groove a53 on the side wall of the connecting block 50, which is communicated with the corresponding side round groove a 52; the inner wall of the circular groove A52 is provided with a disengaging opening 72 which is convenient for the clamping block 10 to disengage from the connecting block 50.
As shown in fig. 6, 7 and 13, a swing groove B54 is formed at the detachment opening 72 of the connection block 50 installed in the notch a35, and a baffle B58 for opening and closing the detachment opening 72 is hinged in the swing groove B54, so as to prevent the connection between the support arm A6 and the connection block 50 from being broken due to carelessly swinging the floating ball 38 end of the safety net 33 during the installation process. A sliding groove B55 is formed in the inner wall of the swing groove B54, a sliding block B61 and a sliding block C64 slide in the sliding groove B55 along the central axis direction of the ring sleeve 70, and the sliding block C64 is connected with the sliding block B61 through a spring B63; the tip cone 60 arranged on the end surface of the sliding block B61 is matched with the cone groove 59 on the side wall of the corresponding baffle B58; screw 68, which is in rotational engagement with circular groove B74 on slider C64, is in threaded engagement with threaded bore 57 on connection block 50; a torsion wheel 69 is mounted at the end of the screw 68.
As shown in fig. 7 and 13, the slide block B61 is symmetrically provided with two guide blocks B62, and the two guide blocks B62 slide in the two guide grooves B56 on the inner wall of the slide groove B55. The cooperation of the guide block B62 and the guide groove B56 plays a role in positioning and guiding the slider B61 in the slide groove B55. Two guide blocks C66 are symmetrically arranged on the sliding block C64, and the two guide blocks C66 slide in the two guide grooves B56 respectively. The cooperation of the guide block C66 and the guide groove B56 plays a role in positioning and guiding the sliding of the slider C64 in the slide groove B55. As shown in fig. 7 and 17, the ring 67 mounted on the screw 68 rotates in the ring groove D65 on the inner wall of the ring groove D, so that the screw 68 and the slider C64 rotate relatively only and do not move relatively axially.
As shown in fig. 8 and 17, an arc block 48 with the same central axis as the circular groove a52 is installed on the connecting block 50 installed in the notch B36, a swinging groove a49 on the inner wall of the arc block 48 is matched with the hanging rod 13 installed on one corresponding U seat 7, and two clamping rings 47 are nested on the hanging rod 13. As shown in fig. 6, 9 and 12, the two ends of the clamping block 10 are provided with rotating cambered surfaces 11 matched with the corresponding circular grooves a52, so that the contact area of the clamping block 10 and the inner cylindrical surface of the annular groove a73 is increased, the rotating abrasion of the clamping block 10 in the circular grooves a52 is reduced, and the rotation of the clamping block 10 in the circular grooves a52 is more stable. As shown in fig. 10 and 11, two ends of the warp yarn 41 are respectively connected with slip rings 40 nested on two weft yarns 39; each warp rope 41 is connected with a fixed block A44 arranged on the other warp rope 41 side on the safety net 33 through two symmetrically distributed elastic ropes 43; as shown in fig. 8, 10 and 11, two pull ropes 45 are symmetrically installed on each warp rope 41, and the two pull ropes 45 are respectively connected with two clamping rings 47 on the same side by bypassing a traction sleeve 46 fixed on the safety net 33.
As shown in fig. 14, the breathing mechanism 15 includes a supporting rod 16, a containing sleeve 18, a breathing hose 22, a filter screen 23, a cover 24, a baffle a25, a bolt 26, a clamping plate 27, a sliding block a28 and a spring a30, wherein as shown in fig. 2 and 14, the supporting rod 16 with the upper end above the gateway 2 of the culvert 1 is mounted on the corresponding supporting column 3 through a bolt 5; as shown in fig. 14 and 16, the lower end of the supporting rod 16 is provided with a containing sleeve 18 which is communicated with a breathing groove 17 on the supporting rod 16; a sliding block A28 slides in the accommodating sleeve 18, and a spring A30 for resetting the sliding block A28 is arranged in the accommodating sleeve 18; as shown in fig. 14, 15 and 16, a baffle a25 for opening and closing the accommodating sleeve 18 is hinged at an opening 37 of the accommodating sleeve 18, and the baffle a25 closes the accommodating sleeve 18 through a bolt 26; a plurality of elastic clamping plates 27 which are uniformly distributed along the circumferential direction on the bolt 26 are matched with the annular groove B21 on the inner wall of the slot 20 on the end surface of the accommodating sleeve 18; the bolt 26 is connected with the two sides of the middle part of the safety net 33 through ropes; a breathing hose 22 is arranged in the breathing groove 17 on the supporting rod 16, and the part of the lower end of the breathing hose 22 which is wound together is positioned in the space between the sliding block A28 and the baffle A25 in the accommodating sleeve 18; a groove A73 is formed in the notch of the upper end of the breathing groove 17, and a filter screen 23 connected with the upper end of the breathing hose 22 is installed in the groove A73; the notch of the ring groove a73 is fitted with a cover 24 that prevents dust from entering.
As shown in fig. 14, the spring a30 is a compression spring; one end of the spring A30 is connected with the inner wall of the accommodating sleeve 18, and the other end of the spring A is connected with the end face of the sliding block A28; two guide blocks A29 are symmetrically arranged on the sliding block A28, and the two guide blocks A29 respectively slide in two guide grooves A19 on the inner wall of the accommodating sleeve 18. The cooperation of the guide block a29 and the guide groove a19 plays a role in positioning and guiding the sliding of the slider a28 in the housing sleeve 18.
As shown in FIG. 1, the support column 3 is provided with an acousto-optic warning device for monitoring the water level of the culvert 1, which monitors the rising of the water level in the culvert 1 caused by raining, water discharge of an upstream water warehouse, municipal pipeline cleaning or other upstream unknown water supply and the like, and provides a more sensitive warning signal for quick evacuation of construction operators and mechanical equipment of the culvert 1, thereby achieving the purpose of guaranteeing the safety of the operators and the mechanical equipment.
The invention is arranged in front of the dredging workers in the culvert 1 along the direction of water flowing in the culvert 1, so that the dredging workers can conveniently and effectively clean the garbage intercepted by the safety net 33.
The size of the openings in the figures is such that to illustrate the arrangement of the structures therein, they are larger than in reality, where the width of the openings 37 of the safety net 33 is about one third of the width of the safety net 33 or the width is not more than 0.5m.
The perforations of the safety net 33 in the present invention are smaller than the volume of the garbage floating in the culvert 1.
The working flow of the invention is as follows: in the initial state, the clamping blocks 10 on the two support arms A6 are respectively rotated in the round grooves A52 on the corresponding connecting blocks 50, and the round pins 9 on the support arms A6 are respectively positioned in the sliding grooves A53 on the corresponding connecting blocks 50. The baffle B58 is closed to the release opening 72 on the corresponding circular groove A52, the tip cone 60 is positioned in the cone groove 59 on the corresponding baffle B58, and all the springs B63 are in a compressed energy storage state. All the floating balls 38 float on the water surface in the culvert 1.
In the initial state, the clamping blocks 10 on the support arms B12 are respectively rotated in the round grooves A52 on the corresponding connecting blocks 50, and the round pins 9 on the support arms B12 are respectively positioned in the sliding grooves A53 on the corresponding connecting blocks 50. The snap ring 47 is nested on the corresponding hanging rod 13, and one end of the hanging rod 13 is positioned in the swing groove A49 on the corresponding arc block 48. Two warp cords 41 are positioned at two side limit positions in the opening 37 of the safety net 33, and two elastic cords 43 on each warp cord 41 are in a stretching energy storage state. Ring groove a73 on strut 16 is sealed by corresponding closure 24. The spring a30 within each containment sleeve 18 is in a compressed energy storage state and the flapper a25 is in a closed state with respect to the respective containment sleeve 18.
After the invention is installed, the cover 24 on the breathing mechanism 15 is pulled off, so that the breathing grooves 17 on the supporting rods 16 in the breathing mechanism 15 are unblocked.
When the water surface in the culvert 1 is normal, the safety net 33 effectively intercepts garbage floating along with flowing water in the culvert 1, so that dredging workers in the culvert 1 can effectively clean the garbage in the culvert 1. At the same time, the opening 37 in the middle of the safety net 33 is convenient for the passage of the staff in the culvert 1.
When the water surface in the culvert 1 rises rapidly due to heavy rain, one end of the safety net 33 provided with the floating ball 38 swings along with the lifting of the floating ball 38, the central axis of the ring 70 on the connecting block 50 connected with the support arm A6 on the safety net 33, the connecting block 50 connected with the support arm A6 swings around the corresponding round pin 9 relative to the U seat 7 on the support arm A6 under the driving of the lower half side rope 34 in the notch A35, the clamping block 10 on the support arm A6 rotates in the round groove A52 on the corresponding connecting block 50, and one end of the clamping block 10 is gradually close to the corresponding separating opening 72.
As the water surface in culvert 1 continues to rise, floating ball 38 swings vertically in the direction of the portion of safety net 33 between the hinge point of arm A6 and connecting block 50 under the restriction of the portion of safety net 33 between the hinge point of arm A6 and connecting block 50. When the hinge point between the arm A6 and the connection block 50 on the safety net 33 swings to the extreme vertical state, one end of the latch 10 on the arm A6 is just opposite to the release opening 72 on the corresponding connection block 50, but the latch 10 will not slide out of the circular groove a52 on the connection block 50 through the release opening 72 at this time because the release opening 72 is closed by the corresponding baffle B58.
As the water surface continues to rise, the floating ball 38 at one end of the safety net 33 is gradually submerged by the water that continues to rise, and the buoyancy force received by the floating ball 38 gradually increases. When the floating ball 38 is completely submerged, the buoyancy force borne by the floating ball 38 reaches the maximum, the clamping block 10 on the support arm A6 overcomes the pressing of the tip cone 60 on the corresponding baffle B58, so that the tip cone 60 on the connecting block 50 hinged with the clamping block 10 on the support arm A6 is separated from the cone groove 59 on the corresponding baffle B58, the closing state of the baffle B58 on the corresponding separation opening 72 is released, the clamping block 10 continuously pulls the baffle B58 under the floating ball 38 on the connecting block 50 and rapidly separates from the connecting block 50, and the disconnection of the hinge point of the support arm A6 and the connecting block 50 is realized.
When the clamping block 10 on the support arm A6 is separated from the corresponding connecting block 50, the connecting block 50 which is originally connected with the U seat 7 on the support arm A6 moves upwards under the drive of the floating ball 38, and the floating ball 38 drives the two connecting blocks 50 disconnected with the support arm A6 to move forwards along with flowing water in the vertical upward movement process, so that the part of the safety net 33 between the floating ball 38 and the support arm B12 straightens and stretches the free end of the safety net 33 under the action of flowing water. Meanwhile, the free end of the safety net 33 drives the connecting block 50 connected with the support arm B12 to rotate around the round pin 9 on the support arm B12, and one end of the clamping block 10 on the support arm B12 rotates in the round groove A52 on the corresponding connecting block 50 by a small angle so as to facilitate the opposite of the separating opening 72 on the connecting block 50. When the clamping block 10 on the support arm B12 is completely opposite to the disengaging opening 72 on the corresponding connecting block 50, the running water drives the connecting block 50 to quickly disengage from the clamping block 10 through the floating ball 38 and the free end of the safety net 33, and the connection between the support arm B12 and the connecting block 50 is disconnected.
With the arm B12 disconnected from the corresponding connection block 50, the hanger bar 13 on the U-shaped seat 7 at the end of the arm B12 is disengaged from the swing groove a49 on the corresponding arc block 48. The two clamping rings 47 nested on the hanging rod 13 are separated from the hanging rod 13 under the action of the corresponding pull ropes 45, and the two warp ropes 41 are respectively and instantly slid to the middle position of the opening 37 of the safety net 33 under the pulling of the corresponding two elastic ropes 43, so that more grabbing starting points are provided for drowners.
When the support arm B12 is disconnected with the corresponding connecting block 50, the whole safety net 33 floats on the water surface, and the opening 37 on the safety net 33 is opposite to the access opening 2 of the culvert 1, so that a drowner of the safety net 33 can quickly escape through the opening 37 and the access opening 2 on the safety net 33.
During the process that the safety net 33 floats to the water surface under the action of the floating ball 38, the safety net 33 pulls out the bolts 26 on the two breathing mechanisms 15 simultaneously through the ropes connected with the bolts 26 on the two breathing mechanisms 15, and the closing of the baffle A25 on the breathing mechanisms 15 to the corresponding containing sleeves 18 is rapidly removed. The breathing tube 22 in the coiled state, which is accommodated in the breathing mechanism 15, is pushed out of the accommodating sleeve 18 by the slider a28 in the accommodating sleeve 18 under the action of the corresponding spring a30 and floats on the water surface.
If workers in the culvert 1 cannot escape from the culvert 1 in time due to physical strength, the breathing hose 22 floating on the water surface can be contained in the mouth to breathe, so that the workers trapped in the culvert 1 cannot drown due to physical strength at one time.
When the baffle B58 is opened to the corresponding release opening 72, the tip cone 60 drives the corresponding slider B61 to retract into the corresponding chute B55, and the spring B63 is further compressed. When the baffle B58 and the clamping block 10 are separated from the connecting block 50, the abutment pressure applied to the tip cone 60 is released, and the sliding block B61 drives the tip cone 60 to reset instantaneously under the reset action of the corresponding spring B63. When the spring B63 is reduced in elasticity with the reciprocation of the present invention, in order to ensure that the shutter B58 does not open to the corresponding release opening 72 by the pulling of the floating ball 38 which is not submerged under the water surface, further compression adjustment of the compression amount of the spring B63 is required, and the further compression adjustment flow of the spring B63 is as follows:
The torsion wheel 69 is rotated, the torsion wheel 69 drives the sliding block C64 to further compress the spring B63 through the screw 68, and when the compression elasticity of the spring B63 reaches the requirement, the rotation of the torsion wheel 69 is stopped, so that the compression amount adjustment of the spring B63 is completed.
In summary, the beneficial effects of the invention are as follows: the invention can effectively intercept the garbage carried by the water in the culvert 1 when the water fluctuation does not occur in the culvert 1, and is convenient for dredging workers in the culvert 1 to effectively clean the garbage in the culvert 1. Meanwhile, the safety net 33 in a state of intercepting the floating garbage on the water surface in the culvert 1 does not form a barrier to the passage of dredging workers in the culvert 1.
When the water surface in the culvert 1 rises rapidly, the hinge points of the two support arms A6 and the connecting block 50 on the safety net 33 are firstly disconnected under the pulling of all the floating balls 38, and the hinge points of the two support arms B12 and the connecting block 50 on the safety net 33 are disconnected immediately after the hinge points of the support arms A6 and the connecting block 50 are disconnected, so that the safety net 33 floats on the rising water surface around the cross rod 31, and the fast flowing running water is not blocked. When the desilting person in the culvert 1 is flushed to the safety net 33 by the rapidly-rising flowing water, the drowning person can grasp the safety net 33 to fix the body and rapidly escape from the entrance 2 of the culvert 1 in time.
When the hinge point of the support arm B12 and the connecting block 50 on the safety net 33 is disconnected, the two warp ropes 41 in the opening 37 on the safety net 33 slide to the middle of the opening 37 instantaneously and relatively, so that the grabbing probability of a drowner passing through the safety net 33 on the safety net 33 is improved, and the self-rescue efficiency of the drowner is improved.
In addition, two breathing mechanisms 15 installed on two support columns 3 can provide oxygen for drowners who cannot timely come out from below the water surface, so that the drowners are prevented from losing life due to failure to timely escape from the culvert 1.
Claims (6)
1. A safety protection network for hidden culvert tunnel construction, its characterized in that: the device comprises support columns, support arms A, support arms B, a breathing mechanism, a cross rod, a safety net, an opening, a floating ball, weft ropes, warp ropes and connecting blocks, wherein the two support columns are vertically fixed in a blind culvert from outside an blind culvert entrance; one end of a safety net with the same width as the blind gateway is arranged on the cross bars at the top ends of the two support columns, and the other end of the safety net is provided with a plurality of floating balls which are uniformly distributed along the width direction of the blind gateway;
A pair of detachable support arms B and a pair of detachable support arms A are arranged on the two support columns from top to bottom; the tail ends of the two support arms A and the two support arms B are respectively hinged with four connecting blocks symmetrically arranged on two sides of the safety net; the hinge point of the safety net with the length larger than the height of the culvert and the support arm A is positioned below the water surface in the culvert, and the two support arms A and the two support arms B support the part of the complete net which is equivalent to the cross section area of the culvert; the hinge joint of the support arm A and the connecting block and the hinge joint of the support arm B and the connecting block are sequentially disconnected under the pulling of the floating ball with gradually increased buoyancy along with the rise of the liquid level of the flowing water in the culvert;
The middle part of the safety net is provided with an opening which is convenient for people to unblock in the blind culvert and corresponds to the blind culvert entrance; two weft ropes which are transversely pulled are symmetrically arranged at the upper end and the lower end in the opening, and two warp ropes which reduce the opening area when the hinge point of the support arm B and the connecting block is disconnected are in sliding fit left and right between the two weft ropes and are convenient for drowners to grasp along with running water;
Two breathing mechanisms for the drowners to breathe in the blind are symmetrically arranged on the two support columns;
The lower end of the support column is in threaded fit with an internal thread sleeve fixed at the bottom of the culvert through a bolt; the two ends of the fixed plates are respectively nested on the two support columns and fixed at the blind culvert entrance through bolts; the cross rod is arranged at the top ends of the two support columns through bolts; the upper end of the safety net is uniformly provided with a plurality of hanging rings which are nested on the cross rod along the width direction of the safety net; the support arm A and the support arm B are detachably installed on the two support columns through bolts;
two connecting blocks hinged with the pair of support arms A are respectively arranged in two gaps A on two sides of the safety net, and two connecting blocks hinged with the pair of support arms B are respectively arranged in two gaps B on two sides of the safety net; the ring groove C on the outer side of the connecting block is rotatably matched with a ring sleeve, the ring sleeve is connected with the upper half section of the broken part of the side rope on the side of the safety net at the notch A or the notch B, and the fixed block B arranged on the connecting block is connected with the lower half section of the broken part of the side rope on the side of the safety net at the notch A or the notch B; u seats are arranged at the tail ends of the support arm A and the support arm B; two round pins are symmetrically arranged on the two inner sides of the U seat, and clamping blocks are arranged at the tail ends of each round pin; two clamping blocks mounted on the same U seat rotate in two circular grooves A in the corresponding connecting blocks around the central axis of the circular pin, and the circular pin is matched with a sliding groove A on the side wall of the connecting block, which is communicated with the corresponding side circular groove A; the inner wall of the circular groove A is provided with a disengaging port which is convenient for the clamping block to disengage from the connecting block;
the breathing mechanism comprises a supporting rod, a containing sleeve, a breathing hose, a filter screen, a sealing cover, a baffle A, a bolt, a clamping plate, a sliding block A and a spring A, wherein the supporting rod with the upper end positioned above the blind culvert inlet and outlet is arranged on a corresponding supporting column through a bolt; the lower end of the supporting rod is provided with a containing sleeve communicated with the upper breathing groove of the supporting rod; a sliding block A is arranged in the accommodating sleeve in a sliding way, and a spring A for resetting the sliding block A is arranged in the accommodating sleeve; a baffle A for opening and closing the accommodating sleeve is hinged at the opening of the accommodating sleeve and is closed by a bolt; a plurality of elastic clamping plates which are uniformly distributed on the periphery of the pin are matched with the annular groove B on the inner wall of the slot on the end surface of the containing sleeve; the bolt is connected with two sides of the middle part of the safety net through ropes; a breathing hose is arranged in the breathing groove on the supporting rod, and the part of the lower end of the breathing hose which is wound together is positioned in the space between the sliding block A and the baffle A in the accommodating sleeve; a notch at the upper end of the breathing groove is provided with a ring groove A, and a filter screen connected with the upper end of the breathing hose is arranged in the ring groove A; the notch of the ring groove A is provided with a sealing cover for preventing dust from entering.
2. The safety protection net for culvert tunneling construction according to claim 1, wherein: a swing groove B is formed at a disengaging port of the connecting block arranged in the notch A, and a baffle B for opening and closing the disengaging port is hinged in the swing groove B; a sliding groove B is formed in the inner wall of the swing groove B, a sliding block B and a sliding block C are arranged in the sliding groove B in a sliding manner along the central axis direction of the ring sleeve, and the sliding block C is connected with the sliding block B through a spring B; the tip cone arranged on the end face of the sliding block B is matched with a cone groove on the side wall of the corresponding baffle B; the screw rod which is in rotary fit with the round groove B on the sliding block C is in threaded fit with the threaded hole on the connecting block; the tail end of the screw rod is provided with a torsion wheel.
3. The safety protection net for culvert tunneling construction according to claim 2, wherein: two guide blocks B are symmetrically arranged on the sliding block B, and the two guide blocks B respectively slide in two guide grooves B on the inner wall of the sliding groove B; two guide blocks C are symmetrically arranged on the sliding block C and respectively slide in the two guide grooves B; the circular ring arranged on the screw rod rotates in the annular groove D on the inner wall of the circular groove D.
4. The safety protection net for culvert tunneling construction according to claim 1, wherein: an arc block with the same central axis as the circular groove A is arranged on a connecting block arranged in the notch B, a swinging groove A on the inner wall of the arc block is matched with a hanging rod arranged on one branch of the corresponding U seat, and two clamping rings are nested on the hanging rod; the two ends of the clamping block are provided with rotating cambered surfaces matched with the corresponding circular grooves A; two ends of the warp rope are respectively connected with slip rings nested on the two weft ropes; each warp rope is connected with a fixed block A arranged at the side of the other warp rope on the safety net through two symmetrically distributed elastic ropes; two pull ropes are symmetrically arranged on each warp rope, and the two pull ropes are respectively connected with two clamping rings on the same side by bypassing a traction sleeve fixed on the safety net.
5. The safety protection net for culvert tunneling construction according to claim 1, wherein: the spring A is a compression spring; one end of the spring A is connected with the inner wall of the accommodating sleeve, and the other end of the spring A is connected with the end face of the sliding block A; two guide blocks A are symmetrically arranged on the sliding block A, and the two guide blocks A respectively slide in two guide grooves A on the inner wall of the accommodating sleeve.
6. The safety protection net for culvert tunneling construction according to claim 1, wherein: and the support column is provided with a hidden culvert water level monitoring acousto-optic early warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210579188.4A CN115162295B (en) | 2021-04-06 | 2021-04-06 | Safety protection net for tunnel construction of hidden culvert |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210579188.4A CN115162295B (en) | 2021-04-06 | 2021-04-06 | Safety protection net for tunnel construction of hidden culvert |
| CN202110365255.8A CN113026585B (en) | 2021-04-06 | 2021-04-06 | Safety protective net |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110365255.8A Division CN113026585B (en) | 2021-04-06 | 2021-04-06 | Safety protective net |
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| CN115162295B true CN115162295B (en) | 2024-05-17 |
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| CN202110365255.8A Active CN113026585B (en) | 2021-04-06 | 2021-04-06 | Safety protective net |
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| CN115162295A (en) | 2022-10-11 |
| CN113026585B (en) | 2022-05-24 |
| CN113026585A (en) | 2021-06-25 |
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