A beam-column steel guardrail opening structure

Abstract

A beam-column type steel guardrail opening structure includes columns, beams, rotating sleeves, rotating bolts, connecting pins, and a foundation. The columns are arranged on the foundation at longitudinal intervals and connected to the beams by bolts. The beams are arranged in three to multiple rows in the height direction, and the openings are arranged between two columns at intervals. Several rows of beams are longitudinally disconnected at the opening position and the ends are provided with vertical through-mounting grooves. The rotating sleeves are inserted into the mounting grooves. Two rotating sleeves are arranged on the left and right sides of each row. One end of a rotating sleeve is provided with a connecting channel steel with the same cross-sectional dimensions as the beam, which covers the end of the other rotating sleeve. The two rotating sleeves are connected as a whole by a connecting pin. The rotating sleeve is connected to the beam by a rotating bolt and a limit pin. The rotating sleeve is rotated to be vertical or horizontal with the beam by the rotating bolt as the axis. The guardrail opening position meets the safety protection requirements of bridge guardrails; the vertical opening structure is convenient for operators to quickly open and close; only the existing structure needs to be modified, the cost is low, and installation and construction are convenient.

Description

Technical Field

[0001] The present invention relates to the field of highway guardrail protection and maintenance, and in particular to a beam-column type steel guardrail opening structure. Background Art

[0002] Guardrails are the last line of defense to protect the normal operation of vehicles and play a vital role. Currently, bridge guardrails are mostly made of beam-column steel guardrails for safety and landscape considerations. They offer strong safety protection and high safety redundancy. They also provide good landscape transparency, a wider driving field of view, reduced fatigue, and improved driving comfort.

[0003] Guardrails need to be continuous in the longitudinal direction. However, in order to ensure the normal operation of bridges, bridge management departments set up maintenance passages on the roadside or median strips of large bridges to facilitate bridge maintenance. Workers need to cross the guardrails to enter the maintenance space, which causes interference between the guardrail setting and the normal needs of the bridge, resulting in people being unable to pass directly, especially when facing high-level guardrails, which are high and there is a great danger for people to climb over. Some bridges even directly disconnect the guardrails at the longitudinal crossbeams to facilitate passage. The guardrails are discontinuous, and serious traffic accidents are very likely to occur at the disconnection points, causing vehicles and people to fall under the bridge, seriously affecting the safe operation of the bridge.

[0004] To sum up, at present, there is a big interference problem between bridge guardrails and construction work space. From the perspective of safety design, the inventor has specially designed the opening position of the beam-column steel guardrail and proposed a beam-column steel guardrail opening structure, which meets the protection requirements of the beam-column guardrail while facilitating workers to quickly pass through the guardrail and enter the maintenance passage. Summary of the Invention

[0005] The purpose of the present invention is to provide a beam-column type steel guardrail opening structure to solve the problems of insufficient safety protection capability and difficult maintenance at the opening position of the bridge guardrail.

[0006] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows:

[0007] A beam-column type steel guardrail opening structure includes columns, beams, rotating sleeves, rotating bolts, connecting pins, and a foundation. The columns are longitudinally spaced apart on the foundation, and the columns are connected to the beams by bolts. The beams are arranged in three to more rows in the height direction, and the openings are arranged between two spaced columns. Several rows of beams are longitudinally disconnected at the opening position and the ends are provided with installation grooves that pass through the upper and lower parts. The rotating sleeves are stuck in the installation grooves along the longitudinal direction. Two rotating sleeves are provided on the left and right sides of each row, and one end of one rotating sleeve is provided with a connecting channel steel with the same cross-sectional size as the beam. The connecting channel steel covers the end of the other rotating sleeve provided with a vertical pin hole. The connecting channel steel is also provided with a vertical pin hole. The left and right rotating sleeves are longitudinally connected as a whole by a connecting pin, and the rotating sleeve and the beam are laterally connected by a rotating bolt and a limit pin. The rotating sleeve is rotated to be vertical or horizontal with the beam by using the rotating bolt as the axis.

[0008] Furthermore, the crossbeam is made of a hollow steel pipe, the installation groove is a through-hole formed by cutting out the vertical upper and lower parts of the crossbeam, the remaining crossbeam surfaces on both sides of the installation groove are clamping plates, and the clamping plates are provided with transverse rotating shaft holes. The position where the rotating sleeve and the clamping plate overlap is also provided with a matching transverse rotating shaft hole, and the rotating sleeve and the crossbeam are connected by rotating bolts passing through the transverse rotating shaft holes.

[0009] Furthermore, the card plate is provided with a through fixing hole 1, and the position where the rotating sleeve and the card plate overlap is provided with a fixing hole 1 and a fixing hole 2. When the rotating sleeve and the crossbeam are parallel to each other, the limit pin is inserted into the fixing hole 1 on the card plate and the rotating sleeve to achieve connection and fixation. When the rotating sleeve and the crossbeam are perpendicular to each other, the limit pin is inserted into the fixing hole 1 on the card plate and the fixing hole 2 on the rotating sleeve to achieve connection and fixation.

[0010] Furthermore, the rotating sleeve is made of a steel pipe, the outer contour of the rotating sleeve is smaller than the crossbeam, the rotating sleeve is embedded in the groove of the connecting channel steel, and the groove of the connecting channel steel faces downward.

[0011] Furthermore, the cross-section of the connecting pin and the limiting pin is circular, and a pull ring is provided on the head.

[0012] Furthermore, the width of the opening gradually decreases from top to bottom, the length of each row of the beams gradually increases from top to bottom, and the length of each row of the rotating sleeves gradually decreases from top to bottom.

[0013] Furthermore, the longitudinal length of the top surface of the installation groove is the same as the width of the beam, and the longitudinal length of the bottom surface of the installation groove is longer than that of the top surface, and the length is greater than the length of the rotating sleeve when it is parallel to the beam.

[0014] Furthermore, when the rotating sleeve is arranged parallel to the beam, the connecting channel steel is flush with the collision surface of the beam, and the rotating sleeve rotates 90 degrees around the rotating bolt as the axis. °When the crossbeam is vertical, the direction of the vertical latch hole of the rotating sleeve is upward.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects:

[0016] (1) Through reasonable design, the opening position of the guardrail beam-column steel guardrail meets the safety protection requirements of the bridge guardrail;

[0017] (2) The opening structure is convenient for operators to open and close quickly while ensuring the protective performance of the guardrail and not affecting the normal operation of the vehicle;

[0018] (3) The opening structure only requires changes to the existing guardrail structure, which is convenient for on-site installation and construction and has low construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a perspective view of a first embodiment of the present invention;

[0021] Figure 2 is an elevation view of embodiment 1 of the present invention;

[0022] Figure 3 This is a three-dimensional diagram of the connection details of the connecting pin of Example 1 of the present invention;

[0023] Figure 4 This is a three-dimensional diagram of a beam according to a first embodiment of the present invention;

[0024] Figure 5 This is a three-dimensional diagram of a rotating sleeve according to a first embodiment of the present invention;

[0025] Figure 6 This is a three-dimensional diagram of a rotating sleeve according to a first embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional diagram of an opening guardrail in accordance with an embodiment of the present invention;

[0027] Figure 8 This is an elevation view of an opening guardrail according to an embodiment of the present invention;

[0028] Figure 9 This is an elevation view of the second embodiment of the present invention;

[0029] The following are marked in the figure:

[0030] 1. Column; 2. Beam; 3. Rotating sleeve; 4. Rotating bolt; 5. Connecting pin; 6. Foundation; 7. Limit pin; 8. Opening; 9. Mounting slot; 10. Connecting channel steel; 11. Vertical pin hole; 12. Clamping plate; 13. Horizontal pivot hole; 14. Fixing hole 1; 15. Fixing hole 2; 16. Pull ring. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0032] Figure 1 、 2 This is a structural diagram of the first embodiment. Figure 3 This is a detailed three-dimensional diagram of the connection pin of the embodiment, including a column 1, a beam 2, a rotating sleeve 3, a rotating bolt 4, a connecting pin 5, and a foundation 6. It is characterized in that: the columns 1 are arranged on the foundation 6 at intervals in the longitudinal direction, the columns 1 are connected to the beam 2 by bolts, the beams 2 are arranged in four rows in the height direction, and the openings 8 are arranged between the two interval columns 1. The upper three rows of beams 2 are longitudinally disconnected at the opening 8 position and the ends are provided with mounting grooves 9 that pass through from top to bottom. The rotating sleeve 3 is stuck in the mounting groove 9 in the longitudinal direction, and each row is provided with The left and right two rotating sleeves 3, one end of which is provided with a connecting channel steel 10 with the same cross-sectional size as the cross-section of the beam 2, the connecting channel steel 10 covers the end of the other rotating sleeve 3 provided with a vertical pin hole 11, and the connecting channel steel 10 is also provided with a vertical pin hole 11. The left and right rotating sleeves 3 are longitudinally connected as a whole by a connecting pin 5, and the rotating sleeve 3 is horizontally connected to the cross-beam 2 by a rotating bolt 4 and a limit pin 7. The rotating sleeve 3 is rotated to be vertical or horizontal with the cross-beam 2 by the rotating bolt 4 as the axis.

[0033] Figure 4 This is a three-dimensional diagram of a beam in this embodiment. The beam 2 is made of a hollow steel tube. The mounting groove 9 is a through-hole formed by cutting out the vertical upper and lower sides of the beam 2. The remaining surfaces of the beam 2 on both sides of the mounting groove 9 are clamping plates 12. The clamping plates 12 are provided with transverse rotation axis holes 13. The position where the rotating sleeve 3 overlaps with the clamping plate 12 is also provided with a matching transverse rotation axis hole 13. The rotating sleeve 3 and the beam 2 are connected by rotating bolts 4 passing through the transverse rotation axis holes 13.

[0034] The clamping plate 12 is provided with a through fixing hole 14, and the position where the rotating sleeve 3 and the clamping plate 12 overlap is provided with a fixing hole 14 and a fixing hole 2 15. When the rotating sleeve 3 and the crossbeam 2 are parallel to each other, the limit pin 7 is inserted into the fixing hole 14 on the clamping plate 12 and the rotating sleeve 3 to achieve connection and fixation. When the rotating sleeve 3 and the crossbeam 2 are perpendicular to each other, the limit pin 7 is inserted into the fixing hole 14 on the clamping plate 12 and the fixing hole 2 15 on the rotating sleeve 3 to achieve connection and fixation.

[0035] Figure 5 、 6 This is a three-dimensional diagram of a rotating sleeve in this embodiment. The rotating sleeve 3 is made of a steel pipe. The outer contour of the rotating sleeve 3 is smaller than the crossbeam 2. The rotating sleeve 3 is embedded in the groove of the connecting channel steel 10, and the groove of the connecting channel steel 10 is facing downward.

[0036] The connecting pin 5 and the limiting pin 7 have circular cross-sections, and a pull ring 16 is provided on the head.

[0037] The width of the opening 8 gradually decreases from top to bottom, the length of each row of the beams 2 gradually increases from top to bottom, and the length of each row of the rotating sleeves 3 gradually decreases from top to bottom.

[0038] The longitudinal length of the top surface of the installation groove 9 is the same as the width of the beam 2 , and the bottom surface of the installation groove 9 is longer than the longitudinal length of the top surface, and the length is greater than the length of the rotating sleeve 3 when it is parallel to the beam 2 and is inserted.

[0039] When the rotating sleeve 3 is arranged parallel to the beam 2, the connecting channel steel 10 is flush with the collision surface of the beam 2. When the rotating sleeve 3 rotates 90° with the rotating bolt 4 as the axis and is perpendicular to the beam 2, the direction of the vertical pin hole 11 of the rotating sleeve 3 is upward.

[0040] Figure 7 、 8 When the cam 11 is unlocked, the locking nut 5 is unlocked, and the locking nut 5 is unlocked, and the cam 11 is unlocked, and the cam 11 is unlocked.

[0041] Figure 9This is the structural diagram of the second embodiment, which includes a column 1, a beam 2, a rotating sleeve 3, a rotating bolt 4, a connecting pin 5, and a foundation 6. It is characterized in that: the columns 1 are longitudinally spaced on the foundation 6, the columns 1 are connected to the beam 2 by bolts, the beam 2 is arranged in three rows in the height direction, and the opening 8 is arranged between the two spaced columns 1. The three rows of beams 2 are longitudinally disconnected at the opening 8 position and the ends are provided with mounting grooves 9 that pass through from top to bottom. The rotating sleeve 3 is inserted into the mounting groove 9 in the longitudinal direction, and two rotating sleeves 3 are arranged on the left and right sides of each row. One end of one rotating sleeve 3 is provided with a connecting channel steel 10 with the same cross-sectional size as the beam 2. The connecting channel steel 10 covers the end of the other rotating sleeve 3 with a vertical pin hole 11. The connecting channel steel 10 is also provided with a vertical pin hole 11. The left and right rotating sleeves 3 are longitudinally connected as a whole by the connecting pin 5. The rotating sleeve 3 and the beam 2 are horizontally connected by the rotating bolt 4 and the limit pin 7. The rotating sleeve 3 rotates to be vertical or horizontal with the beam 2 by the rotating bolt 4 as the axis.

[0042] The crossbeam 2 is made of a hollow steel tube, and the mounting groove 9 is a through-hole formed by cutting out the vertical upper and lower sides of the crossbeam 2. The remaining crossbeam 2 surfaces on both sides of the mounting groove 9 are clamping plates 12, and the clamping plates 12 are provided with transverse rotating shaft holes 13. The position where the rotating sleeve 3 overlaps with the clamping plate 12 is also provided with a matching transverse rotating shaft hole 13. The rotating sleeve 3 and the crossbeam 2 are connected by rotating bolts 4 passing through the transverse rotating shaft holes 13.

[0043] The clamping plate 12 is provided with a through fixing hole 14, and the position where the rotating sleeve 3 and the clamping plate 12 overlap is provided with a fixing hole 14 and a fixing hole 2 15. When the rotating sleeve 3 and the crossbeam 2 are parallel to each other, the limit pin 7 is inserted into the fixing hole 14 on the clamping plate 12 and the rotating sleeve 3 to achieve connection and fixation. When the rotating sleeve 3 and the crossbeam 2 are perpendicular to each other, the limit pin 7 is inserted into the fixing hole 14 on the clamping plate 12 and the fixing hole 2 15 on the rotating sleeve 3 to achieve connection and fixation.

[0044] The rotating sleeve 3 is made of a steel pipe. The outer contour of the rotating sleeve 3 is smaller than the crossbeam 2. The rotating sleeve 3 is embedded in the groove of the connecting channel steel 10, and the groove of the connecting channel steel 10 faces downward.

[0045] The connecting pin 5 and the limiting pin 7 have circular cross-sections, and a pull ring 16 is provided on the head.

[0046] The width of the opening 8 gradually decreases from top to bottom, the length of each row of the beams 2 gradually increases from top to bottom, and the length of each row of the rotating sleeves 3 gradually decreases from top to bottom.

[0047] The longitudinal length of the top surface of the installation groove 9 is the same as the width of the beam 2 , and the bottom surface of the installation groove 9 is longer than the longitudinal length of the top surface, and the length is greater than the length of the rotating sleeve 3 when it is parallel to the beam 2 and is inserted.

[0048] When the rotating sleeve 3 is arranged parallel to the beam 2, the connecting channel steel 10 is flush with the collision surface of the beam 2. When the rotating sleeve 3 rotates 90° with the rotating bolt 4 as the axis and is perpendicular to the beam 2, the direction of the vertical pin hole 11 of the rotating sleeve 3 is upward.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A beam-column type steel guardrail opening structure, comprising a column (1), a crossbeam (2), a rotating sleeve (3), a rotating bolt (4), a connecting pin (5), and a foundation (6), characterized in that: The columns (1) are longitudinally spaced apart and arranged on the foundation (6). The columns (1) are connected to the crossbeams (2) by bolts. The crossbeams (2) are arranged in three or more rows in the height direction. The openings (8) are arranged between two spaced columns (1). Several rows of crossbeams (2) are longitudinally disconnected at the openings (8) and the ends are provided with mounting grooves (9) that pass through from top to bottom. The rotating sleeves (3) are inserted into the mounting grooves (9) along the longitudinal direction. Two rotating sleeves (3) are arranged on the left and right sides of each row. One end of one rotating sleeve (3) is provided with a mounting groove (9) that passes through the crossbeams (1). A connecting channel steel (10) having the same cross-sectional dimensions as the beam (2) is provided. The connecting channel steel (10) covers the end of another rotating sleeve (3) provided with a vertical latch hole (11). The connecting channel steel (10) is also provided with a vertical latch hole (11). The left and right rotating sleeves (3) are longitudinally connected to form a whole through a connecting pin (5). The rotating sleeve (3) is laterally connected to the beam (2) through a rotating bolt (4) and a limit pin (7). The rotating sleeve (3) is rotated to a vertical or horizontal position with respect to the beam (2) by using the rotating bolt (4) as an axis. The width of the opening (8) gradually decreases from top to bottom, the length of each row of the crossbeam (2) gradually increases from top to bottom, and the length of each row of the rotating sleeve (3) gradually decreases from top to bottom; When the rotating sleeve (3) is arranged parallel to the crossbeam (2), the connecting channel steel (10) is flush with the collision surface of the crossbeam (2); when the rotating sleeve (3) is rotated 90 degrees with the rotating bolt (4) as the axis and is perpendicular to the crossbeam (2), the direction of the vertical pin hole (11) arranged in the rotating sleeve (3) faces upward; The crossbeam (2) is made of a hollow steel tube, the installation groove (9) is a through-hole formed by cutting off the vertical upper and lower parts of the crossbeam (2), the remaining crossbeam (2) surfaces on both sides of the installation groove (9) are clamping plates (12), the clamping plates (12) are provided with transverse rotation axis holes (13), the position where the rotating sleeve (3) and the clamping plates (12) overlap is also provided with a matching transverse rotation axis hole (13), and the rotating sleeve (3) and the crossbeam (2) are connected by rotating bolts (4) passing through the transverse rotation axis holes (13); The clamping plate (12) is provided with a through fixing hole 1 (14), and the position where the rotating sleeve (3) and the clamping plate (12) overlap is provided with a fixing hole 1 (14) and a fixing hole 2 (15). When the rotating sleeve (3) and the crossbeam (2) are in parallel positions, the limit pin (7) is inserted into the fixing hole 1 (14) on the clamping plate (12) and the rotating sleeve (3) to achieve connection and fixation. When the rotating sleeve (3) and the crossbeam (2) are in a perpendicular position to each other, the limit pin (7) is inserted into the fixing hole 1 (14) on the clamping plate (12) and the fixing hole 2 (15) on the rotating sleeve (3) to achieve connection and fixation.

2. The beam-column steel guardrail opening structure according to claim 1, characterized in that: The rotating sleeve (3) is made of a steel pipe. The outer contour of the rotating sleeve (3) is smaller than the crossbeam (2). The rotating sleeve (3) is embedded in the groove of the connecting channel steel (10), and the groove of the connecting channel steel (10) is facing downward.

3. The beam-column steel guardrail opening structure according to claim 1, characterized in that: The connecting pin (5) and the limiting pin (7) have circular cross-sections, and a pull ring (16) is provided on the head.

4. The beam-column steel guardrail opening structure according to claim 1, characterized in that: The longitudinal length of the top surface of the installation groove (9) is the same as the width of the crossbeam (2), and the bottom surface of the installation groove (9) is longer than the longitudinal length of the top surface, and the length is greater than the length of the rotating sleeve (3) when it is parallel to the crossbeam (2).

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