Wind-proof inspection door for bridge pier and abutment

Abstract

The utility model discloses a bridge pier and abutment wind-proof type inspection door which comprises a frame body, a plurality of connecting rods and a rotating connecting piece, the size of the frame body is matched with that of a door hole formed in a bridge car avoiding platform, the connecting rods are parallel to one another and arranged on the inner side of the frame body at intervals, the distance between every two adjacent connecting rods is 7 cm, and the rotating connecting piece is arranged on the frame body. The two ends of each connecting rod are connected with the inner side wall of the frame body, the rotary connecting pieces are arranged on the outer side of the frame body, the tops of the rotary connecting pieces are connected with the outer side of the bottom of the frame body, and the bottoms of the rotary connecting pieces are connected with a bridge. The connecting rods are made of round steel, the distance between every two adjacent connecting rods is 7 cm, due to the fact that the connecting rods are made of the round steel, the size of wind force borne by the connecting rods can be reduced through the round edges, wind penetrates through the gap between the two connecting rods, and the ventilation performance of the inspection door is improved. Passing vehicles and pedestrians are prevented from being injured by welding and falling of the inspection door in severe and windy weather, and potential safety hazards of the inspection door are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of roads and bridges, in particular to a windproof inspection door for bridge piers. Background Art

[0002] In northern my country, strong winds often occur due to climate reasons. Auxiliary equipment on bridges fall off due to strong winds, causing them to fall under the bridge and injure passing vehicles and pedestrians. At present, the inspection door of bridge piers is made of 3mm thick patterned steel plate. Due to structural problems and steel plate thickness problems, the inspection door is often blown open by strong winds. In serious cases, the hinge of the inspection door is welded and falls off, posing a safety hazard. Therefore, staff are required to strengthen the daily maintenance of the inspection door, which increases the labor intensity of the staff. To this end, it is necessary to design an inspection door that is not affected by wind, improve the safety of passing vehicles and pedestrians on the bridge, and reduce the labor intensity of staff. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and to provide a windproof inspection door for a bridge pier. The connecting rod of the utility model adopts 16mm round steel, and the distance between two adjacent connecting rods is 7cm. When encountering severe and windy weather, since the connecting rod is made of round steel, the round edge can reduce the size of the wind force on the connecting rod. At the same time, the two adjacent connecting rods are separated by a fixed distance, so that the wind can pass through the gap between the two connecting rods, thereby improving the ventilation performance of the inspection door, avoiding the inspection door from falling off due to welding in severe and windy weather and injuring passing vehicles and pedestrians, and reducing the safety hazards of the inspection door.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a windproof inspection door for a bridge pier, comprising a frame, a connecting rod and a rotating connecting piece. The size of the frame matches the size of the door hole opened on the bridge shelter. There are multiple connecting rods, and the multiple connecting rods are parallel to each other and horizontally arranged on the inner side of the frame. There is a distance of 7 cm between two adjacent connecting rods. The two end portions of the multiple connecting rods are respectively connected to the inner side wall of the frame. The rotating connecting piece is arranged on the bottom outer side of the frame, the top of the rotating connecting piece is connected to the bottom outer side of the frame, and the bottom of the rotating connecting piece is connected to the bridge shelter so that the frame can rotate.

[0005] Preferably, the rotating connecting member includes a first connecting member, a second connecting member and a central rotating shaft, the first connecting member is a tubular structure, the number of the first connecting members is multiple, the multiple first connecting members are connected to the bottom outer side of the frame at intervals, a second connecting member is provided between each adjacent two first connecting members, the bottom of the second connecting member is fixedly connected to the bridge shelter, the central rotating shaft is a cylindrical structure, and the central rotating shaft passes through the first connecting member and the second connecting member to enable the frame to rotate around the second connecting member.

[0006] Preferably, the second connecting member includes a connecting portion and a supporting portion, the connecting portion is fixedly connected to the upper side of the supporting portion, and the supporting portion is fixedly connected to the bridge shelter so that the position of the connecting portion remains fixed.

[0007] Preferably, the central rotating shaft is made of round steel with a diameter of 20 mm, and the length of the central rotating shaft is smaller than the width of the frame.

[0008] Preferably, the first connecting member and the connecting part are both made of DN25 galvanized seamless steel pipe.

[0009] Preferably, the support portion is made of angle steel with a cross-sectional size of 63mm*63mm and a thickness of 5mm, and the length of the support portion is greater than the length of the central shaft.

[0010] Preferably, the frame is a hollow closed structure, and the frame is made of angle steel with a cross-sectional size of 50mm*50mm and a thickness of 4mm.

[0011] Preferably, the connecting rod is made of round steel with a diameter of 16 mm.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The connecting rod of the utility model adopts 16mm round steel, and the interval between two adjacent connecting rods is 7cm. In case of severe and windy weather, since the connecting rod is made of round steel, the round edge can reduce the size of the wind force on the connecting rod. At the same time, the two adjacent connecting rods are separated by a fixed distance, so that the wind can pass through the gap between the two connecting rods, thereby improving the ventilation performance of the inspection door, avoiding the inspection door from falling off and injuring passing vehicles and pedestrians in severe and windy weather, and reducing the safety hazard of the inspection door.

[0014] 2. The connecting rod of the utility model is made of 16mm round steel, and the frame is made of angle steel. The connecting rod and the angle steel of the frame are welded on both sides, which improves the stability of the connection between the connecting rod and the frame. Moreover, the inspection door made of round steel and angle steel has stronger bending resistance, which is convenient for inspectors to step safely when avoiding cars, thereby improving the safety of inspectors.

[0015] 3. The rotating connecting member of the utility model includes a connecting part and a supporting part. The connecting part is welded to the supporting part, and the supporting part is welded to the bridge shelter, which improves the stability of the connecting part. The connecting part is rotatably connected to the frame through a central rotating shaft. When the bridge pier needs to be maintained or inspected, the inspection door can be opened along the central rotating shaft, which improves the work efficiency of the staff.

[0016] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model in use state;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model for checking the door opening state;

[0019] Figure 3 This is a schematic diagram of the structure of the inspection door of the utility model;

[0020] Figure 4 It is a top view of the utility model in use.

[0021] Description of reference numerals:

[0022] 1—frame; 2—connecting rod; 3—rotating connecting piece;

[0023] 3-1—first connecting member; 3-2—second connecting member; 3-3—central rotating shaft;

[0024] 3-4—connecting part; 3-5—supporting part; 4—bridge shelter platform;

[0025] 5—Inspect the ladder. DETAILED DESCRIPTION

[0026] like Figures 1 to 4 As shown, the utility model includes a frame 1, a connecting rod 2 and a rotating connecting member 3. The size of the frame 1 matches the size of the door hole opened on the bridge shelter 4. The number of the connecting rods 2 is multiple, and the multiple connecting rods 2 are parallel to each other and horizontally arranged on the inner side of the frame 1. A distance of 7 cm is left between two adjacent connecting rods 2. The two end portions of the multiple connecting rods 2 are respectively connected to the inner wall of the frame 1. The rotating connecting member 3 is arranged on the outer side of the bottom of the frame 1, and the top of the rotating connecting member 3 is connected to the outer side of the bottom of the frame 1. The bottom of the rotating connecting member 3 is connected to the bridge shelter 4 so that the frame 1 can rotate.

[0027] The door hole opened on the bridge shelter 4 is a square door hole, and the frame 1 is a square structure, and the length of the long side of the frame 1 is consistent with the length of the long side of the door hole, and the length of the short side of the frame 1 is consistent with the length of the short side of the door hole, so that the frame 1 can be embedded in the square door hole and the outer edge of the frame 1 around the inner edge of the door hole is in contact, thereby improving the fastening effect of the frame 1 and the door hole; a plurality of connecting rods 2 can be arranged at intervals along the length direction of the frame 1, and two adjacent connecting rods 2 are 7 cm apart, so that when encountering bad and windy weather, the wind passes through the middle of the two connecting rods 2 7 cm apart. The wind force on the connecting rod 2 is reduced, and the risk of the connecting rod 2 being blown away by strong wind is reduced. The two connecting rods 2 are 7 cm apart, which can also avoid the risk of inspectors or maintenance personnel stepping on empty space during inspection and maintenance. The two ends of each connecting rod 2 are respectively welded to the inner walls of the long sides of the frame 1; the end of the rotating connecting piece 3 is welded to the outer side of the bottom of the frame 1, and the end of the rotating connecting piece 3 away from the frame 1 is welded to the bridge shelter 4, ensuring that the frame 1 is firmly installed in the door hole of the bridge shelter 4, and the center of the frame 1 is consistent with that of the inspection ladder 5.

[0028] In a possible embodiment, the door hole opened on the bridge shelter 4 is a circular door hole, the frame 1 is a circular structure, and the outer diameter of the frame 1 is consistent with the inner diameter of the circular door hole to ensure that the frame 1 can fill the entire circular door hole, the lengths of the multiple connecting rods 2 are inconsistent, each connecting rod 2 is spaced apart in the frame 1, and every two connecting rods 2 are arranged in parallel, the left and right ends of each connecting rod 2 are respectively welded to the inner walls on both sides of the frame 1, one side end of the rotating connector 3 is welded to the bottom outer side of the frame 1, and the end of the rotating connector 3 away from the frame 1 is welded to the bridge shelter 4, ensuring that the frame 1 is firmly installed in the door hole of the bridge shelter 4.

[0029] Furthermore, a ventilation plate (not shown in the figure) is provided in the middle of the frame 1, and a plurality of ventilation holes are provided on the ventilation plate. The upper and lower ends of the ventilation plate are welded to the frame 1, and the lengths of the plurality of connecting rods 2 are consistent and the length of each connecting rod 2 is consistent with the distance from the outer wall of the ventilation plate to the inner wall of the frame 1. Each two adjacent connecting rods 2 are spaced 7 cm apart, one end of the connecting rod 2 is welded to the outer wall of the ventilation plate, and the end of the connecting rod 2 away from the ventilation plate is welded to the inner wall of the frame 1, and connecting rods 2 are welded on both sides of the ventilation plate.

[0030] Furthermore, one side end of the rotating connector 3 is welded to the outer side wall of the frame 1 , and the end of the rotating connector 3 away from the frame 1 is welded to the bridge shelter 4 , so that the frame 1 is firmly connected to the bridge shelter 4 through the rotating connector 3 .

[0031] Different from the above-mentioned embodiment, the door hole opened on the bridge shelter 4 is a polygonal door hole, and the frame 1 has a structure with the same shape as the door hole.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, the rotating connecting member 3 includes a first connecting member 3-1, a second connecting member 3-2 and a central rotating shaft 3-3. The first connecting member 3-1 is a tubular structure. The number of first connecting members 3-1 is multiple. Multiple first connecting members 3-1 are connected to the bottom outer side of the frame 1 at intervals. A second connecting member 3-2 is provided between each adjacent two first connecting members 3-1. The bottom of the second connecting member 3-2 is fixedly connected to the bridge shelter 4. The central rotating shaft 3-3 is a cylindrical structure. The central rotating shaft 3-3 passes through the first connecting member 3-1 and the second connecting member 3-2 to enable the frame 1 to rotate around the second connecting member 3-2.

[0033] The second connecting member 3-2 includes a connecting portion 3-4 and a supporting portion 3-5. The connecting portion 3-4 is fixedly connected to the upper side of the supporting portion 3-5. The supporting portion 3-5 is fixedly connected to the bridge shelter 4 to keep the position of the connecting portion 3-4 fixed.

[0034] When the rotating connecting member 3 is connected to the outer side of the bottom of the frame 1, the outer side wall of the first connecting member 3-1 along the length direction is welded to the outer side of the bottom of the frame 1, and a distance is left between the multiple first connecting members 3-1 for placing the connecting part 3-4 of the second connecting member 3-2. The connecting part 3-4 is a tubular structure, and the tubular connecting port of the connecting part 3-4 is at the same height as the connecting port of the second connecting member 3-2, so that the central rotating shaft 3-3 passes through the connecting part 3-4 and the second connecting member 3-2, so that the frame 1 is rotatably connected to the second connecting member 3-2 through the central rotating shaft 3-3.

[0035] In a possible embodiment, the connecting parts 3-4 are connecting columns corresponding to each other (not shown in the figure), the distance between the two connecting columns is consistent with the length of the first connecting member 3-1, the number of connecting parts 3-4 is consistent with the number of first connecting members 3-1, and the two connecting columns of the connecting part 3-4 are provided with connecting holes, and the inner diameter of the connecting hole is consistent with the inner diameter of the first connecting member 3-1. The multiple first connecting members 3-1 at the bottom of the frame 1 are placed in the corresponding connecting parts 3-4, and then each first connecting member 3-1 is connected to the connecting part 3-4. -4 are all penetrated by the central rotating shaft 3-3, the number of the central rotating shaft 3-3 is consistent with the number of the first connecting parts 3-1, the length of the central rotating shaft 3-3 is slightly larger than the total length of the first connecting part 3-1 and the connecting part 3-4, and the left and right ends of the central rotating shaft 3-3 are provided with limiting components to limit the central rotating shaft 3-3 from sliding out of the first connecting part 3-1 and the connecting part 3-4; the supporting part 3-5 is welded to the bridge shelter 4 to ensure that the position of the connecting part 3-4 thereon is fixed, so that the frame 1 is firmly connected to the connecting part 3-4 of the second connecting part 3-2.

[0036] In another possible embodiment, the connecting part 3-4 includes a first steel pipe and a second steel pipe (not shown in the figure), the length of the first steel pipe is slightly larger than the length of the first connecting member 3-1, the second steel pipe is welded to the top of the supporting part 3-5, the end of the first steel pipe is welded to the end of the second steel pipe away from the supporting part 3-5 to form a 7-shaped structure, the outer diameter of the first steel pipe is consistent with the inner diameter of the first connecting member 3-1, the number of connecting parts 3-4 is consistent with the number of first connecting members 3-1 and the positions correspond, after the first steel pipe passes through the first connecting member 3-1 along the length direction of the first connecting member 3-1, a limit piece is installed at the end of the first steel pipe to limit the first connecting member 3-1 from sliding outward; the supporting part 3-5 is a plate-like structure, and the supporting part 3-5 is welded to the bridge shelter 4 to ensure that the position of the connecting part 3-4 is fixed, so that the frame 1 is firmly connected to the connecting part 3-4 of the second connecting member 3-2.

[0037] The central rotating shaft 3 - 3 is made of round steel with a diameter of 20 mm, and the length of the central rotating shaft 3 - 3 is smaller than the width of the frame 1 .

[0038] The diameter of the central shaft 3-3 is smaller than the inner diameter of the first connecting member 3-1, which facilitates the central shaft 3-3 to pass through the first connecting member 3-1. At the same time, the length of the central shaft 3-3 is smaller than the width of the frame 1 to avoid the central shaft 3-3 being too long to affect the installation.

[0039] The first connecting piece 3-1 and the connecting part 3-4 are both made of DN25 (inner diameter 25 mm) galvanized seamless steel pipe.

[0040] The inner diameter of the first connecting member 3-1 and the connecting part 3-4 is larger than the outer diameter of the central shaft 3-3, so that the central shaft can be smoothly inserted into the first connecting member 3-1 and the connecting part 3-4, and the frame 1 can rotate along the central shaft 3-3 when the inspection door is opened.

[0041] The support part 3-5 is made of angle steel with a cross-sectional size of 63mm*63mm and a thickness of 5mm. The length of the support part 3-5 is greater than the length of the central shaft 3-3.

[0042] The support part 3-5 is an angle steel with a width of 63mm on both sides and a thickness of 5mm. The support part 3-5 is connected to the frame 1 through the connecting part 3-4 and the first connecting member 3-1. In order to ensure that the frame 1 is firmly installed in the door hole of the bridge shelter 4, the support part 3-5 is welded to the bridge shelter 4 to ensure that the position of the support part 3-5 is fixed.

[0043] like Figure 2 , Figure 3 As shown, the frame 1 is a hollow closed structure, and the frame 1 is made of angle steel with a cross-sectional size of 50mm*50mm and a thickness of 4mm.

[0044] The frame 1 is an angle steel with a width of 50mm on both sides and a thickness of 4mm. This type of angle steel can bear the weight of inspection personnel or maintenance personnel stepping on it when avoiding the car, and can also make the inspection door frame 1 and the bridge avoidance platform 4 in the same plane to avoid people tripping.

[0045] The connecting rod 2 is made of round steel with a diameter of 16 mm.

[0046] The connecting rod 2 is made of round steel with a diameter of 16 mm, which can be safely stepped on by inspectors for leverage. The distance between each two adjacent connecting rods 2 is 7 cm, which can avoid the risk of inspectors or maintenance personnel stepping on empty space when performing inspection work.

[0047] When in use, according to the shape and size of the door hole opened by the bridge shelter 4, a frame 1 of corresponding shape and size is made, so that the frame 1 can be embedded in the door hole, and the outer wall of the frame 1 is in contact with the inner wall of the door hole, and then the round steel with a diameter of 16 mm is cut into connecting rods 2 of corresponding length according to the width of the frame 1, and the two end portions of each connecting rod 2 are respectively welded to the two end side walls of the frame 1, and the ends of the connecting rod 2 are welded to the two sides of the angle steel for making the frame 1 to ensure that the connecting rod 2 is firmly connected to the frame 1. The distance between each adjacent two connecting rods 2 is 7 cm to avoid the risk of inspectors or maintenance personnel stepping on empty space when inspecting and repairing. Each connecting rod 2 is connected from bottom to top along the length direction of the frame 1. Weld a connecting rod 2 every 7 cm until it is welded to the top of the frame 1, weld the first connecting piece 3-1 to the bottom outer side of the frame 1, leave a distance between two adjacent first connecting pieces 3-1, then weld the support part 3-5 to the bridge shelter 4, ensure that the position of the connecting part 3-4 thereon is stable, then match the position of the first connecting piece 3-1 with the connecting part 3-4, insert the central shaft 3-3 into the first connecting piece 3-1 and the connecting part 3-4, so that the frame 1 can rotate along the central shaft. Under normal circumstances, the frame 1 is firmly installed in the door hole of the bridge shelter 4. When the inspection door needs to be opened, the frame 1 can be rotated along the central shaft 3-3 to open the inspection door.

[0048] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A windproof inspection door for a bridge pier, characterized by: The invention comprises a frame (1), a connecting rod (2) and a rotating connecting member (3); the size of the frame (1) matches the size of a door hole opened on a bridge shelter (4); the number of the connecting rods (2) is multiple, the multiple connecting rods (2) are parallel to each other and are horizontally arranged on the inner side of the frame (1); a distance of 7 cm is left between two adjacent connecting rods (2); the two end portions of the multiple connecting rods (2) are respectively connected to the inner side wall of the frame (1); the rotating connecting member (3) is arranged on the outer side of the bottom of the frame (1); the top of the rotating connecting member (3) is connected to the outer side of the bottom of the frame (1); the bottom of the rotating connecting member (3) is connected to the bridge shelter (4) so ​​that the frame (1) can rotate.

2. A bridge pier windproof inspection door according to claim 1, characterized in that: The rotating connecting member (3) comprises a first connecting member (3-1), a second connecting member (3-2) and a central rotating shaft (3-3); the first connecting member (3-1) is a tubular structure; there are a plurality of the first connecting members (3-1); the plurality of the first connecting members (3-1) are connected to the outer side of the bottom of the frame (1) at intervals; a second connecting member (3-2) is provided between each two adjacent first connecting members (3-1); the bottom of the second connecting member (3-2) is fixedly connected to the bridge shelter (4); the central rotating shaft (3-3) is a cylindrical structure; the central rotating shaft (3-3) passes through the first connecting member (3-1) and the second connecting member (3-2) so that the frame (1) rotates around the second connecting member (3-2).

3. A bridge pier windproof inspection door according to claim 2, characterized in that: The second connecting member (3-2) comprises a connecting portion (3-4) and a supporting portion (3-5), wherein the connecting portion (3-4) is fixedly connected to the supporting portion (3-5), and the supporting portion (3-5) is fixedly connected to the bridge shelter (4) so ​​that the position of the connecting portion (3-4) remains fixed.

4. A bridge pier windproof inspection door according to claim 2, characterized in that: The central rotating shaft (3-3) is made of round steel with a diameter of 20 mm, and the length of the central rotating shaft (3-3) is smaller than the width of the frame (1).

5. A windproof inspection door for a bridge pier according to claim 3, characterized in that: The first connecting piece (3-1) and the connecting part (3-4) are both made of DN25 galvanized seamless steel pipe.

6. A bridge pier windproof inspection door according to claim 3, characterized in that: The support portion (3-5) is made of angle steel with a cross-sectional size of 63mm*63mm and a thickness of 5mm. The length of the support portion (3-5) is greater than the length of the central rotating shaft (3-3).

7. A windproof inspection door for a bridge pier according to claim 1, characterized in that: The frame (1) is a hollow closed structure, and the frame (1) is made of angle steel with a cross-sectional size of 50 mm*50 mm and a thickness of 4 mm.

8. A windproof inspection door for a bridge pier according to claim 1, characterized in that: The connecting rod (2) is made of round steel with a diameter of 16 mm.

Images