CN114561885B - Protection device for preventing bridge pier in mountain area from being impacted by rolling stones and debris flow - Google Patents
Protection device for preventing bridge pier in mountain area from being impacted by rolling stones and debris flow Download PDFInfo
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- CN114561885B CN114561885B CN202210248195.6A CN202210248195A CN114561885B CN 114561885 B CN114561885 B CN 114561885B CN 202210248195 A CN202210248195 A CN 202210248195A CN 114561885 B CN114561885 B CN 114561885B
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a protection device for preventing rolling stones and debris flow impact of bridge piers in mountainous areas, which comprises an installation box, a protection plate, a support plate, a protection sleeve and a transmission mechanism; the mounting box is pre-buried on the ground and sleeved outside the bridge pier; the protection plate is arranged at the top of the installation box, a sliding rod is fixed at the bottom of the protection plate, and the sliding rod is in sliding connection with a slot formed in the top of the installation box; the supporting plate is fixed at the top of the mounting box and is connected with the protection plate through a plurality of first elastic pieces; the protection sleeve is sleeved on the outer side of the bridge pier, and the bottom of the protection sleeve extends to the mounting box to be connected with the mounting box in a rotating way; the transmission mechanism is arranged in the mounting box, and the input end and the output end are respectively connected with the sliding rod and the protection sleeve and used for driving the protection sleeve to rotate when the sliding rod slides. The invention can drive the protective sleeve to rotate through the transmission mechanism when the protective plate is impacted by the front surface, thereby changing the impacted surface of the protective sleeve and avoiding damage.
Description
Technical Field
The invention relates to the technical field of bridge pier protection, in particular to a protection device for preventing rolling stones and debris flow from impacting bridge piers in mountain areas.
Background
Bridge piers are key parts and weak links in bridge engineering, key protection is needed during traffic engineering operation, bridges in mountain gorge areas are often threatened by various geological disasters, including collapse rolling stones and debris flows, and in order to avoid the bridge piers from being impacted by the rolling stones and the debris flows, protection devices are arranged on accessories of the bridge piers to avoid the bridge piers from being impacted.
The existing protection device is arranged on the face, facing the hillside, of the bridge pier, when the rolling stones and the debris flow occur on the hillside, impact is slowed down from the front, but protection force on two sides of the bridge pier is insufficient, part of the rolling stones and the debris flow can cross the side face of the protection device to impact two sides of the bridge pier, meanwhile, the impacted face of the existing protection device cannot be converted, and the protection device is damaged by extrusion after being impacted for a long time, so that protection is not facilitated.
Disclosure of Invention
The invention aims to provide a protection device for preventing rolling stones from impacting debris flow for bridge piers in mountain areas, so as to solve the problems in the prior art.
The technical scheme of the invention is as follows: a protection device for preventing rolling stones and debris flow from impacting of bridge piers in mountainous areas comprises an installation box, a protection plate, a support plate, a protection sleeve and a transmission mechanism; the mounting box is pre-buried on the ground and sleeved outside the bridge pier; the protection plate is arranged at the top of the installation box, a sliding rod is fixed at the bottom of the protection plate, the sliding rod is clamped in the slot in a sliding manner, and the slot is formed in one side of the top of the installation box and is arranged along the length direction of the installation box; the support plate is fixed at the top of the mounting box and positioned between the protection plate and the bridge pier, and the support plate is connected with the protection plate through a plurality of first elastic pieces which are horizontally arranged; the protective sleeve is sleeved on the outer side of the bridge pier, and the bottom of the protective sleeve extends into the installation box and is rotationally connected with the inner bottom surface of the installation box; the transmission mechanism is arranged in the mounting box, the input end of the transmission mechanism is connected with the bottom of the sliding rod, and the output end of the transmission mechanism is connected with the outer wall of the protective sleeve and used for driving the protective sleeve to rotate when the sliding rod slides.
Preferably, the transmission mechanism comprises a first connecting rod, a deflector rod and a gear ring; the first connecting rod is horizontally arranged in the mounting box, one end of the first connecting rod is vertically fixed with the bottom of the sliding rod, the other end of the first connecting rod is vertically fixed with the second connecting rod, and the bottom of the second connecting rod is in sliding connection with the inner bottom surface of the mounting box; the deflector rod is vertically fixed at one end of the second connecting rod, which is close to the inner side wall of the installation box, and a plurality of deflector teeth are arranged on the side wall, which is opposite to the pier, of the deflector rod; the gear ring is sleeved and fixed on the protective sleeve, and the gear ring is meshed with the shifting teeth.
Preferably, each shifting tooth is hinged with the shifting rod, a limit stop is arranged on one side, close to the second connecting rod, of each shifting tooth and is vertically fixed with the shifting rod and used for limiting the rotating position of the shifting tooth, a second elastic piece which is obliquely arranged is connected to one side, far away from the second connecting rod, of each shifting tooth, and the other end of the second elastic piece is connected with the side wall, opposite to the pier, of the shifting rod.
Preferably, a plurality of first mounting grooves are formed in the top of the protective sleeve, the first mounting grooves are circularly arranged around the central line of the protective sleeve, each first mounting groove is tangent to the protective sleeve uniformly, a first hinge shaft is fixed on the bottom of one side groove of each first mounting groove, a stirring plate is hinged to each first hinge shaft, a third elastic piece which is obliquely arranged is connected to the side wall of the protective sleeve, and the other end of the third elastic piece is connected with the groove wall of the first mounting groove.
Preferably, the material stirring plate is L-shaped, and the third elastic piece is located at the inner side of the material stirring plate.
Preferably, the bottom of the protective sleeve is provided with a first annular groove, the inner bottom surface of the mounting box is provided with a second annular groove which is opposite to the first annular groove, and a plurality of balls are slidably clamped between the first annular groove and the second annular groove.
Preferably, the protection plate is of a hollow triangular prism structure.
Preferably, the guard plate is just offered the second mounting groove on the lateral wall of backup pad, is fixed with two second articulated shafts of vertical setting on the second mounting groove, two second articulated shafts are located the both sides of slide bar respectively, the spout has been seted up to the top both sides of mounting groove, and two spouts set up along the width direction of installation case, all sliding connection has the slider in every spout, and every slider is just being fixed with the fourth elastic component on the lateral wall of slide bar perpendicularly, the other end of fourth elastic component with the cell wall of spout is connected, and the top of every slider is fixed with the third articulated shaft perpendicularly, the both sides of slide bar are equipped with the baffle that the slope set up, and one side and the second articulated shaft of baffle are articulated, and the opposite side and the third articulated shaft of baffle are articulated.
Preferably, one end of the second connecting rod, which is far away from the deflector rod, is fixedly provided with a reinforcing rib which is obliquely arranged, and the other end of the reinforcing rib is fixed with the deflector rod, which is opposite to the side wall of the pier.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, rolling stones or debris flow falling from the front surface of the bridge pier can be buffered and protected through the cooperation of the protection plate and the first elastic piece, so that the front surface of the bridge pier is prevented from being impacted, meanwhile, the protection sleeve is arranged on the outer side of the bridge pier, the rolling stones falling from the side surface of the bridge pier can be comprehensively protected by utilizing the protection sleeve, and the protection sleeve can be driven to rotate when the protection plate is impacted through the arranged transmission mechanism, so that the impacted surface of the protection sleeve can be converted, and the phenomenon that the same surface is always impacted to be damaged is avoided.
2. According to the invention, the plurality of material stirring plates are arranged on the side wall of the protective sleeve, and the impact force of the barreled stones on the protective sleeve can be slowed down by utilizing the cooperation of the material stirring plates and the third elastic piece, and meanwhile, the barreled stones piled around can be stirred out by utilizing the material stirring plates in the rotating process of the protective sleeve, so that the barreled stones are prevented from being piled under the bridge pier.
3. According to the invention, through the cooperation among the baffle plate, the sliding block and the fourth elastic piece, when the protection plate is impacted, the protection area of the rolling stones sliding off from the two sides of the protection plate can be enlarged by utilizing the baffle plate.
Drawings
FIG. 1 is a front cross-sectional view of the structure of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 3 at C in accordance with the present invention;
fig. 5 is a partially enlarged schematic view of the structure at D in fig. 1 according to the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to fig. 1 to 5. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, 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 defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Example 1
As shown in fig. 1 to 5, a protection device for preventing the impact of rolling stones and mud-rock flow for a mountain bridge pier, the protection device for preventing the impact of rolling stones and mud-rock flow for a mountain bridge pier comprises a mounting box 2, a protection plate 3, a support plate 4, a protection sleeve 5 and a transmission mechanism; the mounting box 2 is pre-buried on the ground and sleeved outside the bridge pier 1; the protection plate 3 is arranged at the top of the installation box 2, a slide bar 31 is fixed at the bottom of the protection plate 3, the slide bar 31 is clamped in the slot 21 in a sliding way, and the slot 21 is arranged at one side of the top of the installation box 2 and is arranged along the length direction of the installation box 2; the supporting plate 4 is fixed at the top of the mounting box 2 and is positioned between the protecting plate 3 and the pier 1, and the supporting plate 4 is connected with the protecting plate 3 through a plurality of first elastic pieces 41 which are horizontally arranged; the protection sleeve 5 is sleeved on the outer side of the bridge pier 1, and the bottom of the protection sleeve 5 extends into the installation box 2 and is rotationally connected with the inner bottom surface of the installation box 2; the transmission mechanism is arranged in the installation box 2, the input end of the transmission mechanism is connected with the bottom of the sliding rod 31, the output end of the transmission mechanism is connected with the outer wall of the protective sleeve 5 and is used for driving the protective sleeve 5 to rotate when the sliding rod 31 slides, and the elastic parts involved in the invention are buffer springs.
Before protection, need set up guard plate 3 back to backup pad 4's one end just to the hillside, when the hillside takes place the roll stone or the mud-rock flow is impacted, can strike guard plate 3 at first, can be to the direction horizontal migration near backup pad 4 after guard plate 3 receives the striking, and compress first elastic component 41 release a part impact force, perhaps there is partial roll stone or mud-rock flow to fall to guard plate 3's rear and protection sleeve 5 contact from guard plate 3's both sides simultaneously, utilize protection sleeve 5 can play further guard action to pier 1, consequently, guard plate 3 can drive slide bar 31 when moving, the drive protection sleeve 5 through drive mechanism rotates when slide bar 31 slides, the impact surface that it received can convert when protection sleeve 5 rotates, avoid same face to receive the impact to damage for a long time, the protection ability to the pier has been improved.
Specifically, the transmission mechanism includes a first connecting rod 61, a shift rod 63 and a gear ring 65; the first connecting rod 61 is horizontally arranged in the installation box 2, one end of the first connecting rod 61 is vertically fixed with the bottom of the sliding rod 31, the other end of the first connecting rod 61 is vertically fixed with the second connecting rod 62, and the bottom of the second connecting rod 62 is in sliding connection with the inner bottom surface of the installation box 2; the deflector rod 63 is vertically fixed at one end of the second connecting rod 62 close to the inner side wall of the mounting box 2, and a plurality of deflector teeth 64 are arranged on the side wall of the deflector rod 63, which is opposite to the pier 1; the gear ring 65 is sleeved and fixed on the protective sleeve 5, and the gear ring 65 is meshed with the shifting teeth 64.
When the slide bar 31 slides, the first connecting rod 61 drives the second connecting rod 62 to horizontally move, the second connecting rod 62 drives the deflector rod 63 to synchronously move, the plurality of deflector teeth 64 arranged on the deflector rod 63 are utilized to drive the gear ring 65 to rotate in the moving process of the deflector rod 63, and the gear ring 65 rotates to drive the protective sleeve 5 to rotate.
Further, since the protection plate 3 is rebounded after being impacted by the barreled stones, the protection sleeve 5 is likely to reversely rotate, so that the impact surface just converted returns to the initial position again, and protection is not facilitated, so that in order to enable the protection sleeve 5 to rotate along one direction, each shifting tooth 64 is hinged with the shifting rod 63, one side, close to the second connecting rod 62, of each shifting tooth 64 is provided with a limit stop 66, the limit stop 66 is vertically fixed with the shifting rod 63 and used for limiting the rotating position of the shifting tooth 64, one side, far away from the second connecting rod 62, of each shifting tooth 64 is connected with a second elastic piece 67 which is obliquely arranged, and the other end of the second elastic piece 67 is connected with the side wall, opposite to the pier 1, of the shifting rod 63.
Referring to fig. 3, when the shift lever 63 moves to the right, the shift tooth 64 cannot rotate clockwise by cooperating with the limit stop 66, so that the gear ring 65 can be driven to move clockwise during the movement of the shift tooth 64 to the right, and when the shift tooth 64 moves to the left, the shift tooth 64 can rotate counterclockwise and compress the second elastic member 67 due to the existence of the second elastic member 67 when the shift tooth 64 contacts with the gear ring 65, so that the position of the gear ring 65 is kept unchanged, and the gear ring 65 and the protective sleeve 5 can be driven to rotate clockwise only when the shift tooth 64 moves to the right.
Further, in order to reduce the impact force of the barren rock to the protection sleeve 5, a plurality of first mounting grooves 51 are formed in the top of the protection sleeve 5, the first mounting grooves 51 are circularly arranged around the central line of the protection sleeve 5, each first mounting groove 51 is tangential to the protection sleeve 5, a first hinge shaft 52 is fixed on the bottom of one side groove of each first mounting groove 51, a stirring plate 6 is hinged to each first hinge shaft 52, the stirring plate 6 is connected to a third elastic element 53 which is obliquely arranged on the side wall of the protection sleeve 5, and the other end of the third elastic element 53 is connected with the groove wall of the first mounting groove 51.
The third elastic piece 53 can play a role in elastic buffering when the material stirring plate 6 is impacted by the barren rock or the barren rock is stirred, so that the material stirring plate 6 is prevented from being directly impacted to be damaged, and meanwhile, the plurality of material stirring plates 6 can also rotate along with the protective sleeve 5 to stir out barren rock or mud-rock flow around the bridge pier, so that the material stirring plate is prevented from being gathered near the bridge pier.
Further, in order to prevent the material stirring plate 6 from being impacted by the rolling stone, the rolling stone may collide with the third elastic member 53 to cause damage, so the material stirring plate 6 is configured in an L shape, and the third elastic member 53 is located at the inner side of the material stirring plate 6.
Further, in order to enable the protection sleeve 5 to rotate easily, the first annular groove 71 is formed in the bottom of the protection sleeve 5, the second annular groove 72 opposite to the first annular groove 71 is formed in the inner bottom surface of the installation box 2, a plurality of balls 73 are slidably clamped between the first annular groove 71 and the second annular groove 72, and friction force can be reduced by the balls 73, so that the protection sleeve 5 can rotate easily.
Further, in order to guide the barren rock or the debris flow, which is impacted by the front surface of the protection plate 3, to both sides thereof, the protection plate 3 is configured as a hollow triangular prism, and an isosceles triangular prism may be used when the arrangement is made.
Furthermore, in order to enlarge the protection area of the rolling stones sliding on both sides of the protection plate 3, a second installation groove 32 is formed in the side wall of the protection plate 3 opposite to the support plate 4, two second hinge shafts 33 are fixed on the second installation groove 32, the two second hinge shafts 33 are respectively located on both sides of the slide bar 31, sliding grooves 22 are formed in both sides of the top of the installation groove 2, the two sliding grooves 22 are arranged along the width direction of the installation box 2, sliding blocks 23 are connected in each sliding groove 22 in a sliding manner, a fourth elastic piece 24 is vertically fixed on the side wall of each sliding groove 23 opposite to the slide bar 31, the other end of the fourth elastic piece 24 is connected with the groove wall of the sliding groove 22, a third hinge shaft 25 is vertically fixed on the top of each sliding block 23, a baffle plate 8 is arranged on both sides of the slide bar 31 in an inclined manner, one side of the baffle plate 8 is hinged with the second hinge shaft 33, and the other side of the baffle plate 8 is hinged with the third hinge shaft 25.
Because guard plate 3 is hollow triangular prism structure, consequently, when guard plate 3 openly receives the barren rock and assaults, thereby the both sides of thereby the barren rock is guided and play the power of letting out, simultaneously because guard plate 3 can be moved to the direction that is close to pier 1 when receiving the impact, consequently, can drive slider 23 in spout 22 to the position that keeps away from pier 1 through rather than articulated baffle 8 when moving guard plate 3, and stretch fourth elastic component 24, make baffle 8 and second mounting groove 32's contained angle increase, thereby enlarge baffle 8 and to the guard area of barren rock of following guard plate 3 both sides landing, and the buffer action is also played to fourth elastic component 24's existence, thereby receive the barren rock to the guard plate 3 after assaults, thereby fourth elastic component 24 can shrink and remove to the position that is close to pier 1 through slider 23, and drive to be moved to the direction that is kept away from pier 1 through baffle 8 drive guard plate 3, make baffle 8 and second mounting groove 32's contained angle reduce, play the effect of buffer support to guard plate 3 both sides.
Furthermore, in order to make the second connecting rod 62 drive the driving lever 63 to move more stably, one end of the second connecting rod 62 far away from the driving lever 63 is fixed with a reinforcing rib 9 arranged in an inclined manner, and the other end of the reinforcing rib 9 is fixed with the driving lever 63 opposite to the side wall of the pier 1.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations within the scope of the present invention will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a protection device that mountain area pier prevented rolling stone and mud-rock flow impacted, includes pre-buried at subaerial install bin (2), and install bin (2) suit is in pier (1) outside, its characterized in that still includes:
the protection plate (3) is arranged at the top of the installation box (2), a sliding rod (31) is fixed at the bottom of the protection plate (3), the sliding rod (31) is slidably clamped in the slot (21), and the slot (21) is formed in one side of the top of the installation box (2) and is arranged along the length direction of the installation box (2);
the support plate (4) is fixed at the top of the mounting box (2) and is positioned between the protection plate (3) and the pier (1), and the support plate (4) is connected with the protection plate (3) through a plurality of first elastic pieces (41) which are horizontally arranged;
the protection sleeve (5) is sleeved on the outer side of the bridge pier (1), and the bottom of the protection sleeve (5) extends into the installation box (2) and is rotationally connected with the inner bottom surface of the installation box (2);
the transmission mechanism is arranged in the installation box (2), the input end of the transmission mechanism is connected with the bottom of the sliding rod (31), and the output end of the transmission mechanism is connected with the outer wall of the protection sleeve (5) and is used for driving the protection sleeve (5) to rotate when the sliding rod (31) slides; the transmission mechanism comprises: the first connecting rod (61) is horizontally arranged in the installation box (2), one end of the first connecting rod (61) is vertically fixed with the bottom of the sliding rod (31), the other end of the first connecting rod (61) is vertically fixed with the second connecting rod (62), and the bottom of the second connecting rod (62) is in sliding connection with the inner bottom surface of the installation box (2); the deflector rod (63) is vertically fixed at one end, close to the inner side wall of the mounting box (2), of the second connecting rod (62), and a plurality of deflector teeth (64) are arranged on the side wall, opposite to the bridge pier (1), of the deflector rod (63); a gear ring (65) sleeved and fixed on the protective sleeve (5), wherein the gear ring (65) is meshed with the poking teeth (64);
every dial tooth (64) all articulates with driving lever (63), and one side that every dial tooth (64) is close to second connecting rod (62) all is equipped with limit stop (66), limit stop (66) with driving lever (63) vertical fixation for limit dial tooth (64) pivoted position, one side that every dial tooth (64) kept away from second connecting rod (62) is connected with second elastic component (67) that the slope set up, the other end of second elastic component (67) with driving lever (63) just are connected to the lateral wall of pier (1).
2. The protection device for preventing rolling stones and debris flow impact on mountain bridge piers according to claim 1, wherein a plurality of first mounting grooves (51) are formed in the top of the protection sleeve (5), the first mounting grooves (51) are circularly arranged around the central line of the protection sleeve (5), each first mounting groove (51) is tangential to the protection sleeve (5), a first hinge shaft (52) is fixed on the bottom of one side groove of each first mounting groove (51), a stirring plate (6) is hinged to each first hinge shaft (52), a third elastic piece (53) which is obliquely arranged is connected to the side wall of the protection sleeve (5) opposite to the stirring plate (6), and the other end of each third elastic piece (53) is connected with the groove wall of the corresponding first mounting groove (51).
3. The protection device for preventing the rolling stones from impacting the debris flow for the bridge pier in the mountain area according to claim 2, wherein the stirring plate (6) is in an L shape, and the third elastic piece (53) is positioned on the inner side of the stirring plate (6).
4. The protection device for preventing rolling stones and debris flow impact of the mountain bridge pier according to claim 1, wherein a first annular groove (71) is formed in the bottom of the protection sleeve (5), a second annular groove (72) opposite to the first annular groove (71) is formed in the inner bottom surface of the installation box (2), and a plurality of balls (73) are slidably clamped between the first annular groove (71) and the second annular groove (72).
5. The protection device for preventing rolling stones and debris flow impact of the mountain bridge pier according to claim 1, wherein the protection plate (3) is of a hollow triangular prism structure.
6. The protection device for preventing rolling stones and debris flow impact on a mountain bridge pier according to claim 5, wherein the protection plate (3) is just provided with a second installation groove (32) on the side wall of the support plate (4), two second hinge shafts (33) which are vertically arranged are fixed on the second installation groove (32), the two second hinge shafts (33) are respectively positioned at two sides of the slide bar (31), sliding grooves (22) are arranged at two sides of the top of the installation box (2), the two sliding grooves (22) are arranged along the width direction of the installation box (2), sliding blocks (23) are connected in each sliding groove (22) in a sliding manner, a fourth elastic piece (24) is vertically fixed on the side wall of each sliding groove (22), the other end of each sliding block (23) is connected with the groove wall of the sliding groove (22), a third hinge shaft (25) is vertically fixed at the top of each sliding block (23), two sides of the sliding groove (31) are respectively provided with a baffle (8) which are obliquely arranged, and one side of the baffle (8) is hinged with the second hinge shaft (33) and the other side of the baffle (25).
7. The protection device for preventing the rolling stones and the debris flow from impacting the bridge pier in the mountain area according to claim 1, wherein one end of the second connecting rod (62) far away from the deflector rod (63) is fixedly provided with a reinforcing rib (9) which is obliquely arranged, and the other end of the reinforcing rib (9) is fixedly opposite to the side wall of the bridge pier (1) with the deflector rod (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248195.6A CN114561885B (en) | 2022-03-14 | 2022-03-14 | Protection device for preventing bridge pier in mountain area from being impacted by rolling stones and debris flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248195.6A CN114561885B (en) | 2022-03-14 | 2022-03-14 | Protection device for preventing bridge pier in mountain area from being impacted by rolling stones and debris flow |
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| Publication Number | Publication Date |
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| CN114561885A CN114561885A (en) | 2022-05-31 |
| CN114561885B true CN114561885B (en) | 2023-09-08 |
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| CN202210248195.6A Active CN114561885B (en) | 2022-03-14 | 2022-03-14 | Protection device for preventing bridge pier in mountain area from being impacted by rolling stones and debris flow |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115710870B (en) * | 2022-11-03 | 2024-06-21 | 重庆交通大学 | Prevent open cut tunnel of mud-rock flow |
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| CN210946538U (en) * | 2019-08-08 | 2020-07-07 | 姚美英 | Falling rock buffer protection device for highway pier |
| CN110468749A (en) * | 2019-08-30 | 2019-11-19 | 四川轻化工大学 | A kind of protective device of mountain area bridge pier anti-Rolling Stone and mud-rock-flow-impact |
| CN112761414A (en) * | 2019-11-05 | 2021-05-07 | 湖北春环建筑工程有限公司 | Protective equipment for construction engineering construction |
| CN214929613U (en) * | 2020-12-29 | 2021-11-30 | 张家口驰美尔智能汽车服务有限公司 | Safety device for collision prevention of car washer |
| CN113047320A (en) * | 2021-05-17 | 2021-06-29 | 王常青 | Road slope surface protection device |
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