CN114561885B - A protective device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows - Google Patents

Abstract

The invention discloses a protection device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows, which includes a mounting box, a protective plate, a supporting plate, a protective sleeve and a transmission mechanism; the mounting box is pre-buried on the ground and set on the outside of the bridge pier; the protective plate is On the top of the installation box, a sliding rod is fixed on the bottom of the protective plate, and the sliding rod is slidingly connected to the slot opened on the top of the installation box; the support plate is fixed on the top of the installation box, and multiple thirds are passed between the support plate and the protective plate. An elastic member is connected; the protective sleeve is set on the outside of the pier, and the bottom of the protective sleeve extends to the installation box and is rotationally connected to the installation box; the transmission mechanism is set in the installation box, and the input end and output end are connected to the sliding rod and the protective sleeve respectively. The connection is used to drive the protective sleeve to rotate when the slide rod slides. The invention can drive the protective sleeve to rotate through the transmission mechanism when the protective plate is impacted from the front, thereby changing the impact surface of the protective sleeve and avoiding damage.

Description

A protective device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows

Technical field

The invention relates to the technical field of bridge pier protection, and is specifically a protection device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flow.

Background technique

Bridge piers are key parts and weak links in bridge engineering. They require special protection during the operation of transportation projects. Bridges located in mountain valley areas are often threatened by various geological disasters, including collapse of rolling stones and debris flows. In order to prevent the piers from being damaged by rolling rocks and debris flows, Therefore, protective devices will be installed near the bridge piers to prevent the bridge piers from being impacted.

Most of the existing protection devices are installed on the side of the bridge pier facing the hillside. When rolling rocks and debris flows occur on the hillside, they can slow down the impact from the front. However, the protection on both sides of the bridge pier is not enough, and some of the rolling rocks and debris flows will pass over the protection device. It will cause impact on both sides of the bridge pier from the side. At the same time, the impact surface of the existing protection device cannot be changed. After being impacted for a long time, it will be squeezed and damaged, which is not conducive to protection.

Contents of the invention

The object of the present invention is to provide a protection device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows, so as to solve the problems mentioned in the above background technology.

The technical solution of the present invention is: a protection device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows, including an installation box, a protective plate, a support plate, a protective sleeve and a transmission mechanism; the installation box is pre-embedded on the ground and set on the outside of the bridge pier ; The protective plate is arranged on the top of the installation box, and a sliding rod is fixed at the bottom of the protective plate. The sliding rod is slidably mounted in the slot. The slot is opened on the top side of the installation box and is arranged along the length of the installation box. ; The support plate is fixed on the top of the installation box and is located between the protective plate and the pier. The support plate and the protective plate are connected through a plurality of horizontally arranged first elastic members; the protective sleeve is set on the outside of the pier, and the protective sleeve The bottom extends into the installation box and is rotationally connected to the inner bottom surface of the installation box; the transmission mechanism is arranged in the installation box, the input end of the transmission mechanism is connected to the bottom of the sliding rod, and the output end of the transmission mechanism is connected to the protective sleeve The outer wall of the barrel is connected to drive the protective sleeve to rotate when the slide rod slides.

Preferably, the transmission mechanism includes a first connecting rod, a lever and a ring gear; the first connecting rod is horizontally arranged in the installation box, and one end of the first connecting rod is vertically fixed to the bottom of the sliding rod. The other end of the second connecting rod is vertically fixed with a second connecting rod, and the bottom of the second connecting rod is slidingly connected to the inner bottom surface of the installation box; the lever is vertically fixed at one end of the second connecting rod close to the inner wall of the installation box, and the lever is facing the pier. The side wall is provided with a plurality of shifting teeth; the ring gear set is fixed on the protective sleeve, and the ring gear meshes with the shifting teeth.

Preferably, each of the shifting teeth is hingedly connected to the shifting lever, and a limiting block is provided on one side of each shifting tooth close to the second connecting rod. The limiting block is vertically fixed to the shifting lever for limiting the shifting. In the position where the teeth rotate, the side of each shifting tooth away from the second connecting rod is connected to a second elastic member arranged at an angle, and the other end of the second elastic member is connected to the side wall of the shifting rod facing the pier.

Preferably, a plurality of first installation grooves are provided on the top of the protective sleeve. The plurality of first installation grooves are arranged in a circle around the center line of the protective sleeve, and each first installation groove is evenly spaced from the protective sleeve. Cut, a first hinge shaft is fixed on the bottom of one side of each first installation slot, a material shifting plate is hinged on each first hinge shaft, and the material shifting plate faces the side wall of the protective sleeve A third elastic member arranged obliquely is connected to the top, and the other end of the third elastic member is connected to the groove wall of the first installation groove.

Preferably, the material shifting plate is L-shaped, and the third elastic member is located inside the material shifting plate.

Preferably, the bottom of the protective sleeve is provided with a first annular groove, and the inner bottom surface of the installation box is provided with a second annular groove opposite to the first annular groove. The first annular groove is A plurality of balls are slidably clamped between the second annular groove and the second annular groove.

Preferably, the protective plate is a hollow triangular prism structure.

Preferably, a second installation groove is provided on the side wall of the protective plate facing the support plate, and two second hinge shafts arranged vertically are fixed on the second installation groove, and the two second hinge shafts are respectively located on the sliding rod. On both sides of the installation groove, there are slide grooves on both sides of the top of the installation groove. The two slide grooves are arranged along the width direction of the installation box. There are slide blocks slidingly connected in each slide groove. Each slide block faces the sliding rod. A fourth elastic member is vertically fixed on the side wall. The other end of the fourth elastic member is connected to the groove wall of the chute. A third hinge shaft is vertically fixed on the top of each slider. There are two sides of the slider. There is an inclined baffle, one side of the baffle is hinged with the second hinge axis, and the other side of the baffle is hinged with the third hinge axis.

Preferably, one end of the second connecting rod away from the driving rod is fixed with an inclined reinforcing rib, and the other end of the reinforcing rib is fixed to the side wall of the pier facing the driving rod.

Compared with the prior art, the beneficial effects of the present invention are:

1. Through the cooperation of the protective plate and the first elastic member, the present invention can buffer and protect the rolling stones or debris flow falling on the front of the bridge pier to avoid the impact force on the front of the bridge pier. At the same time, since there is a protective sleeve outside the bridge pier, the protective sleeve can be used It comprehensively protects the rolling stones falling from the side of the bridge pier, and through the transmission mechanism set up, it can drive the protective sleeve to rotate when the protective plate is impacted, so that the impact surface of the protective sleeve can be switched to avoid the same surface being frequently affected by the impact. Damage occurs due to impact.

2. The present invention uses a plurality of material shifting plates provided on the side walls of the protective sleeve and utilizes the cooperation between the material shifting plates and the third elastic member to slow down the impact of the rolling stones on the protective sleeve and at the same time, it can During the rotation of the drum, the material shifting plate is used to push away the accumulated rolling stones to avoid accumulation under the bridge piers.

3. Through the cooperation between the baffle, the slider and the fourth elastic member, the present invention can use the baffle to expand the protective area of the rolling stones sliding down both sides of the protective plate when the protective plate is impacted.

Description of the drawings

Figure 1 is a front cross-sectional structural view of the present invention;

Figure 2 is a cross-sectional view at A-A in Figure 1 of the present invention;

Figure 3 is a cross-sectional view at B-B in Figure 1 of the present invention;

Figure 4 is a partially enlarged schematic diagram of the structure at C in Figure 3 of the present invention;

Figure 5 is a partially enlarged schematic diagram of the structure at D in Figure 1 of the present invention.

Detailed ways

Specific embodiments of the present invention will be described in detail below with reference to Figures 1 to 5. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

The terms “first” and “second” are used for descriptive purposes only and shall not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise stated, the meaning of "plurality" is Two or more.

Example 1

As shown in Figures 1 to 5, a protective device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows, and a protective device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows, including an installation box 2, a protective plate 3, a support plate 4, and a protective sleeve The cylinder 5 and the transmission mechanism; the installation box 2 is pre-buried on the ground and is set on the outside of the pier 1; the protective plate 3 is set on the top of the installation box 2, and the sliding rod 31 is fixed at the bottom of the protective plate 3, and the sliding rod 31 is slidably mounted In the slot 21, the slot 21 is opened on the top side of the installation box 2 and is arranged along the length direction of the installation box 2; the support plate 4 is fixed on the top of the installation box 2 and is located between the protective plate 3 and the pier 1 , the support plate 4 and the protective plate 3 are connected through a plurality of horizontally arranged first elastic members 41; the protective sleeve 5 is set on the outside of the pier 1, and the bottom of the protective sleeve 5 extends into the installation box 2 and is connected with the installation box. The inner bottom surface of the box 2 is rotationally connected; the transmission mechanism is arranged in the installation box 2, the input end of the transmission mechanism is connected to the bottom of the sliding rod 31, and the output end of the transmission mechanism is connected to the outer wall of the protective sleeve 5 for use in the sliding rod 31 When sliding, the protective sleeve 5 is driven to rotate, and the elastic members involved in the present invention are all buffer springs.

Before protection, one end of the protective plate 3 needs to be placed facing away from the support plate 4 and facing the hillside. When a rolling stone or debris flow occurs on the hillside, it will first hit the protective plate 3. When the protective plate 3 is hit, it will move closer to the support plate 4. move horizontally in the direction, and compress the first elastic member 41 to release part of the impact force. At the same time, some rolling stones or debris flows may fall from both sides of the protective plate 3 to the rear of the protective plate 3 and contact the protective sleeve 5. Using the protective sleeve 5 can further protect the bridge pier 1. Therefore, when the protective plate 3 moves, it can drive the sliding rod 31 to slide. When the sliding rod 31 slides, the protective sleeve 5 is driven by the transmission mechanism to rotate. When the protective sleeve 5 rotates, it is subjected to The impact surface will be transformed to prevent the same surface from being damaged by impact for a long time, and improve the protection ability of the bridge pier.

Specifically, the transmission mechanism includes a first connecting rod 61, a lever 63 and a ring gear 65; the first connecting rod 61 is horizontally arranged in the installation box 2, and one end of the first connecting rod 61 is vertically fixed to the bottom of the sliding rod 31. The other end of a connecting rod 61 is vertically fixed with a second connecting rod 62, and the bottom of the second connecting rod 62 is slidingly connected to the inner bottom surface of the installation box 2; the lever 63 is vertically fixed on the second connecting rod 62 close to the inner wall of the installation box 2 At one end, the lever 63 is provided with a plurality of shifting teeth 64 facing the side wall of the bridge pier 1; the ring gear 65 is fixed on the protective sleeve 5, and the ring gear 65 meshes with the shifting teeth 64.

When the sliding rod 31 slides, the first connecting rod 61 drives the second connecting rod 62 to move horizontally, and the second connecting rod 62 drives the lever 63 to move synchronously. During the movement of the lever 63, the plurality of teeth 64 provided on it are used to drive the sliding lever 31. The ring gear 65 rotates, and the rotation of the ring gear 65 drives the protective sleeve 5 to rotate.

Furthermore, since the protective plate 3 will rebound after being hit by a rolling stone, the protective sleeve 5 may rotate in the opposite direction, causing the newly converted impact surface to return to the initial position, which is not conducive to protection. Therefore, in order to achieve Rotate the protective sleeve 5 in one direction, and hinge each shift tooth 64 with the shift lever 63. A limit stop 66 is provided on the side of each shift tooth 64 close to the second connecting rod 62. The limit stop 66 is fixed perpendicularly to the lever 63 and is used to limit the rotation position of the lever teeth 64. The side of each lever tooth 64 away from the second connecting rod 62 is connected to a second elastic member 67 arranged obliquely. The other side of the second elastic member 67 One end is connected to the side wall of the bridge pier 1 opposite to the lever 63.

Referring to Figure 3, when the lever 63 moves to the right, by cooperating with the limit stop 66, the shifting teeth 64 cannot rotate clockwise. Therefore, the shifting teeth 64 can drive the ring gear 65 in the process of moving to the right. When the hour hand moves, when the shift teeth 64 move to the left, due to the existence of the second elastic member 67, when the shift teeth 64 contact the ring gear 65, the shift teeth 64 can rotate counterclockwise and compress the second elastic member 67 , thereby keeping the position of the ring gear 65 unchanged, and only when the shifting teeth 64 move to the right can the ring gear 65 and the protective sleeve 5 be driven to rotate clockwise.

Furthermore, in order to reduce the impact of rolling stones on the protective sleeve 5, a plurality of first mounting grooves 51 are provided on the top of the protective sleeve 5. The plurality of first mounting grooves 51 are centered on the center line of the protective sleeve 5. Circularly arranged, and each first mounting slot 51 is evenly tangential to the protective sleeve 5. A first hinge shaft 52 is fixed on one side of the bottom of each first mounting slot 51. Each first hinge shaft 52 The material shifting plates 6 are hinged on both sides, and the side wall of the material shifting plates 6 facing the protective sleeve 5 is connected with a tilted third elastic member 53. The other end of the third elastic member 53 is connected to the first installation groove. 51 slot wall connection.

The third elastic member 53 can play an elastic buffering role when the material dialing plate 6 is impacted by a rolling stone or is moved by a rolling stone, thereby preventing the material dialing plate 6 from being damaged due to direct impact. At the same time, multiple material dialing plates 6 can also follow. The protective sleeve 5 rotates to push away the rolling stones or debris flow around the pier to prevent them from gathering near the pier.

Furthermore, in order to prevent the material shifting plate 6 from being impacted by rolling stones, the rolling stones will collide with the third elastic member 53 and cause damage, so the material shifting plate 6 is set to be L-shaped, and the third elastic member 53 is located on the side of the material shifting plate 6 . inside.

Furthermore, in order to enable the protective sleeve 5 to rotate easily, a first annular groove 71 is provided at the bottom of the protective sleeve 5 , and an inner bottom surface of the mounting box 2 is provided opposite to the first annular groove 71 The second annular groove 72 has a plurality of balls 73 slidably clamped between the first annular groove 71 and the second annular groove 72. The balls 73 can reduce the friction, thereby allowing the protective sleeve 5 to rotate easily. .

Furthermore, in order to be able to guide the rolling stones or mudslides that are impacted on the front of the protective plate 3 to both sides, the protective plate 3 is made into a hollow triangular prism structure, and an isosceles triangular prism structure can be used during installation.

Furthermore, in order to expand the protection area for rolling stones sliding down on both sides of the protective plate 3, a second installation groove 32 is opened on the side wall of the protective plate 3 facing the support plate 4, and a second installation groove 32 is fixed on the second installation groove 32. Two second hinge shafts 33 are arranged vertically. The two second hinge shafts 33 are respectively located on both sides of the slide bar 31. There are slide grooves 22 on both sides of the top of the installation groove 2. The two slide grooves 22 are along the installation box 2. is arranged in the width direction, and a slide block 23 is slidably connected in each chute 22. A fourth elastic member 24 is vertically fixed on the side wall of each slide block 23 facing the slide rod 31. The other end of the fourth elastic member 24 Connected to the wall of the chute 22, a third hinge shaft 25 is vertically fixed on the top of each slider 23. There are inclined baffles 8 on both sides of the slide bar 31, and one side of the baffle 8 is connected to the second hinged shaft 25. The shaft 33 is hinged, and the other side of the baffle 8 is hinged with the third hinge shaft 25 .

Since the protective plate 3 has a hollow triangular prism structure, when the front of the protective plate 3 is impacted by a rolling stone, the rolling stones will guide the flow on both sides of the protective plate 3 to release force. At the same time, the protective plate 3 will move closer when it is impacted. The direction of the bridge pier 1 moves, so when the protective plate 3 moves, it will drive the slider 23 to slide in the chute 22 away from the center of the bridge pier 1 through the baffle 8 hinged thereto, and stretch the fourth elastic member 24 so that the The angle between the plate 8 and the second installation groove 32 increases, thereby expanding the protective area of the baffle 8 against the rolling stones sliding down from both sides of the protective plate 3, and the existence of the fourth elastic member 24 can also play a buffering role. When protecting After the plate 3 is impacted by the rolling stone, the fourth elastic member 24 will shrink and move to a position closer to the center of the pier 1 through the slider 23, and drive the protective plate 3 through the baffle 8 to move in a direction away from the pier 1, so that the baffle 8 The angle between 8 and the second installation groove 32 is reduced, which plays a buffering and supporting role on both sides of the protective plate 3 .

Furthermore, in order to make the second connecting rod 62 drive the lever 63 to move more stably, an inclined reinforcing rib 9 is fixed on one end of the second connecting rod 62 away from the lever 63, and the other end of the reinforcing rib 9 is connected to the lever 63. The lever 63 is fixed to the side wall of the bridge pier 1.

What is disclosed above is only a few preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that those skilled in the art can think of should fall within the protection scope of the present invention.

Claims (7)

1. A protection device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows, including an installation box (2) pre-buried on the ground, and the installation box (2) is set on the outside of the bridge pier (1). It is characterized by that it also includes: The protective plate (3) is arranged on the top of the installation box (2). A sliding rod (31) is fixed at the bottom of the protective plate (3). The sliding rod (31) is slidably mounted in the slot (21). The slot is The slit (21) is opened on the top side of the installation box (2) and is provided along the length direction of the installation box (2); The support plate (4) is fixed on the top of the installation box (2) and is located between the protective plate (3) and the pier (1). The support plate (4) and the protective plate (3) are connected by a plurality of horizontally arranged The first elastic member (41) is connected; The protective sleeve (5) is set on the outside of the pier (1). The bottom of the protective sleeve (5) extends into the installation box (2) and is rotationally connected to the inner bottom surface of the installation box (2); The transmission mechanism is arranged in the installation box (2). Its input end is connected to the bottom of the sliding rod (31), and its output end is connected to the outer wall of the protective sleeve (5). It is used to connect the sliding rod (31) ) drives the protective sleeve (5) to rotate when sliding; the transmission mechanism includes: a first connecting rod (61), which is horizontally arranged in the installation box (2), and one end of the first connecting rod (61) is connected to the sliding rod The bottom of (31) is vertically fixed, and the other end of the first connecting rod (61) is vertically fixed with a second connecting rod (62). The bottom of the second connecting rod (62) slides with the inner bottom surface of the installation box (2). Connection; the lever (63) is vertically fixed at one end of the second connecting rod (62) close to the inner wall of the installation box (2). The lever (63) is facing the side wall of the pier (1) and is provided with multiple teeth ( 64); the ring gear (65) is fixed on the protective sleeve (5), and the ring gear (65) meshes with the shifting teeth (64); Each shifting tooth (64) is hingedly connected to the shifting lever (63), and a limiting stop (66) is provided on the side of each shifting tooth (64) close to the second connecting rod (62). (66) is fixed perpendicularly to the lever (63) and is used to limit the rotation position of the lever teeth (64). The side of each lever tooth (64) away from the second connecting rod (62) is connected to a third tilted lever. Two elastic members (67), the other end of the second elastic member (67) is connected to the side wall of the lever (63) facing the pier (1). 2. A protection device for bridge piers in mountainous areas against the impact of rolling stones and debris flows according to claim 1, characterized in that a plurality of first installation grooves (51) are provided on the top of the protective sleeve (5), and a plurality of The first mounting slots (51) are arranged in a circle around the center line of the protective sleeve (5), and each first mounting slot (51) is tangent to the protective sleeve (5). A first hinge shaft (52) is fixed on one side of the groove bottom of (51), and a material shifting plate (6) is hinged on each first hinge shaft (52), and the material shifting plate (6) is An inclined third elastic member (53) is connected to the side wall of the protective sleeve (5), and the other end of the third elastic member (53) is connected to the groove wall of the first installation groove (51). 3. A protection device for bridge piers in mountainous areas to prevent the impact of rolling stones and debris flows according to claim 2, characterized in that the material dialing plate (6) is L-shaped, and the third elastic member (53) is located on the dialing plate. The inside of the material plate (6). 4. A protection device for bridge piers in mountainous areas against the impact of rolling stones and debris flows according to claim 1, characterized in that a first annular groove (71) is provided at the bottom of the protective sleeve (5), and the installation The inner bottom surface of the box (2) is provided with a second annular groove (72) opposite to the first annular groove (71). The first annular groove (71) and the second annular groove (72) A plurality of balls (73) are installed in the sliding card between them. 5. A protection device for bridge piers in mountainous areas against the impact of rolling stones and debris flows according to claim 1, characterized in that the protective plate (3) is a hollow triangular prism structure. 6. A protection device for bridge piers in mountainous areas against the impact of rolling stones and debris flows according to claim 5, characterized in that a second installation slot is provided on the side wall of the protective plate (3) facing the support plate (4). (32), two second hinge shafts (33) arranged vertically are fixed on the second installation groove (32), and the two second hinge shafts (33) are respectively located on both sides of the slide rod (31). There are chutes (22) on both sides of the top of the installation box (2). Two chutes (22) are arranged along the width direction of the installation box (2). Each chute (22) is slidably connected with a slider ( 23), a fourth elastic member (24) is vertically fixed on the side wall of each slider (23) facing the sliding rod (31), and the other end of the fourth elastic member (24) is connected to the slide groove (22) The groove wall is connected, and the top of each slider (23) is vertically fixed with a third hinge shaft (25). Both sides of the slider (31) are provided with inclined baffles (8). The baffles (8) ) is hinged to the second hinge shaft (33), and the other side of the baffle (8) is hinged to the third hinge shaft (25). 7. A protection device for bridge piers in mountainous areas against the impact of rolling stones and debris flows according to claim 1, characterized in that an inclined reinforcement rib is fixed at one end of the second connecting rod (62) away from the lever (63). (9), the other end of the reinforcing rib (9) is fixed to the side wall of the pier (1) facing the lever (63).