Passage protection device for municipal engineering

Abstract

The invention discloses a channel protection device for municipal engineering, and relates to the technical field of road protection, the protection device comprises a stand column and cross beams which are installed on a road surface, the two cross beams are arranged on the upper portion and the lower portion of the stand column, the two cross beams on the same stand column are connected through a plurality of anti-collision rods which are evenly arranged, and the protection device further comprises a connecting unit. The connecting unit comprises a connecting plate, the connecting plate is arranged at the connecting position of the stand column and the cross beam, a plurality of connecting grooves are evenly formed in the connecting plate, a limiting block is arranged in each connecting groove in a sliding mode, and limiting connection of the cross beam is achieved through synchronous cooperation of the limiting blocks. When the cross beam and the stand column are connected and installed, the cross beam is inserted into the part between the limiting blocks, and when the cross beam or the stand column is impacted, due to the fact that the cross beam and the stand column are in limiting connection, only the impacted part is damaged when the cross beam is impacted, and the whole cross beam and the whole stand column cannot collapse.

Description

Technical Field

[0001] The present invention relates to the technical field of road protection, in particular to a channel protection device for municipal engineering. Background Art

[0002] As is well known, road guardrails are traffic safety devices installed on the outside of roadsides, traffic dividers, and sidewalk curbs. They absorb collision energy by deforming themselves or climbing higher, thereby redirecting vehicles, preventing them from running off the road or into oncoming lanes, and minimizing injuries to occupants. In addition to protecting vehicles, road guardrails also shield pedestrians, maintenance / construction workers, and cyclists from unpredictable traffic. In its most basic form, road guardrails are designed to prevent vehicles leaving the roadway from striking fixed objects.

[0003] For example, the patent with publication number CN107514181B and publication date January 6, 2023, entitled "Aluminum Alloy Composite Guardrail", discloses an aluminum alloy composite guardrail having a composite base with an inner steel core completely wrapped by a surface aluminum alloy shell. The aluminum alloy fence sheet and the aluminum alloy column are provided with hollow channels that penetrate each other. A section of steel reinforcement cable is provided in the hollow channel of each aluminum alloy fence sheet, and a steel self-locking socket is provided in the hollow channel of each aluminum alloy column. The buckle heads of the two sections of steel reinforcement cables adjacent to each aluminum alloy column are placed in the inner cavity of the steel self-locking socket and fixedly locked. A reinforcing steel core rod is fixed longitudinally inside the aluminum alloy column. This patent constructs a high-strength core skeleton network interwoven in the horizontal and vertical directions inside the aluminum alloy composite guardrail, so that only aluminum alloy profiles can be used on the entire exterior and non-key parts of the aluminum alloy composite guardrail, which not only saves a lot of costs, but also looks beautiful and rust-resistant, while ensuring the stability and impact resistance of the aluminum alloy composite guardrail.

[0004] The shortcoming of the existing technology is that since the road guardrail is set in the middle of the road, it is inevitable to be hit. When the road guardrail is hit, since the road guardrails are fixedly connected, the road guardrails are usually all hit in a chain reaction, causing the entire road guardrail to collapse on the road surface. Summary of the Invention

[0005] The purpose of the present invention is to provide a channel protection device for municipal engineering to solve the technical problems in related technologies.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a channel protection device for municipal engineering, comprising a column and a beam installed on the road surface, wherein two beams are arranged above and below the column, and the two beams on the same column are connected by a plurality of evenly arranged anti-collision rods, and further comprising a connecting unit, wherein the connecting unit comprises a connecting plate, and a connecting plate is provided at the connection position between the column and the beam, and a plurality of connecting grooves are evenly provided on the connecting plate, and a limit block is slidably provided in each of the connecting grooves, and the limit connection of the beam is realized by the synchronous cooperation of each of the limit blocks.

[0007] As mentioned above, the axial cross section of the beam is a regular hexagon.

[0008] As mentioned above, the number of the connecting grooves provided on each of the connecting plates is four, and the inner walls of the four connecting grooves on the same connecting plate are connected to the corresponding limiting blocks respectively via a first elastic member.

[0009] As mentioned above, each of the connecting plates is symmetrically provided with two grooves, the two grooves on the same connecting plate are respectively located in the gap between two adjacent connecting grooves, a positioning block is slidably installed in each of the grooves, and each of the crossbeams is symmetrically provided with two positioning grooves, and each of the positioning blocks and the corresponding positioning grooves are plugged into and fitted with each other.

[0010] As mentioned above, the four limit blocks and the two positioning blocks on the same connecting plate are arranged in one-to-one correspondence with the six sides of the regular hexagon of the crossbeam.

[0011] As mentioned above, both sides of each positioning groove and the corresponding positioning block are configured as first inclined surfaces.

[0012] As mentioned above, the contact surfaces between the four limit blocks on each of the connecting plates and the crossbeam are all second inclined surfaces.

[0013] As mentioned above, the inner wall of each groove is connected to its corresponding positioning block via a second elastic member.

[0014] As mentioned above, the cross beams, columns and anti-collision bars are all provided with buffer materials.

[0015] As mentioned above, reflective strips for enhancing visibility are provided on the crossbeams, columns and anti-collision bars.

[0016] The beneficial effects of the present invention are as follows: when connecting and installing the beams and columns, the beams are inserted into the parts between the various limit blocks, so that the various limit blocks synchronously perform limit connection processing on the beams, thereby realizing the installation between the beams and the columns. When the beams or columns are hit (especially the beams in the middle part of the road guardrail), since the beams and the columns are in a limit connection, when the beams are hit, only the hit parts are damaged, and the entire piece (or row) of beams and columns will not collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application 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 described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure;

[0020] Figure 3 For the present invention Figure 2 A schematic diagram of a partially enlarged three-dimensional structure at position M;

[0021] Figure 4 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention;

[0022] Figure 5 A schematic cross-sectional structure diagram of a first viewing angle of another embodiment provided by the present invention;

[0023] Figure 6 A schematic cross-sectional structure diagram of a second viewing angle of another embodiment provided by the present invention;

[0024] Figure 7 A schematic diagram of a partial cross-sectional structure of a first perspective of another embodiment provided by the present invention;

[0025] Figure 8 A schematic cross-sectional view of a second perspective of another embodiment provided by the present invention;

[0026] Figure 9 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention;

[0027] Figure 10 It is a schematic diagram of the partial three-dimensional structure of the connection position between the connecting plate and the crossbeam of the present invention.

[0028] Description of reference numerals:

[0029] 1. Column; 2. Crossbeam; 3. Anti-collision bar; 4. Connecting plate; 5. Connecting groove; 6. Limit block; 7. First elastic member; 8. Second inclined surface; 9. Groove; 10. Positioning block; 11. Second elastic member; 12. Positioning groove; 13. First inclined surface; 14. Square groove; 15. Baffle; 16. Third elastic member; 17. Through groove; 18. Locking rod; 19. Support plate; 20. Through groove; 21. First oblique tooth member; 22. Fourth elastic member; 23. Second oblique tooth member; 24. Auxiliary plate; 25. Fifth elastic member; 26. Auxiliary groove; 27. Connecting member; 28. Card groove; 29. Sliding plate; 30. Pressing member; 31. Gradient surface; 32. Straight groove; 33. Lifting plate; 34. Pin; 35. Flat groove; 36. Straight plate; 37. Hemispherical groove; 38. Rubber protrusion. DETAILED DESCRIPTION

[0030] In order to make those skilled in the art better understand the technical solution of the present invention, Figure 1 To the attached Figure 10 The present invention is further described in detail.

[0031] An embodiment provided by the present invention relates to a channel protection device for municipal engineering, including a column 1 and a beam 2 installed on a road surface, wherein two beams 2 are arranged above and below the column 1, and the two beams 2 on the same column 1 are connected by a plurality of evenly arranged anti-collision rods 3. The device also includes a connecting unit, which includes a connecting plate 4. A connecting plate 4 is provided at the connection position between the column 1 and the beam 2, and a plurality of connecting grooves 5 are evenly opened on the connecting plate 4. A limit block 6 is slidably provided in each of the connecting grooves 5, and the limit connection of the beam 2 is achieved through the synchronous cooperation of each of the limit blocks 6.

[0032] Specifically, the guardrail is a traffic safety facility set up on the road for separation. The guardrail includes a column 1, a beam 2 and an anti-collision bar 3. The column 1 is installed by being buried in the ground or fixed on the foundation. The beam 2 is connected to the column 1. People skilled in the art can know that two beams 2 are set between the two columns 1. The same end of the two beams 2 is fixedly connected to one column 1 (generally plugged in), and the other end of the two beams 2 is connected to the other column 1 through a connecting unit. It is also possible that the two ends of the two beams 2 are connected to the two columns 1 through a connecting unit. A plurality of anti-collision bars 3 are evenly arranged between the two beams 2, each The anti-collision bar 3 is fixedly connected to the crossbeam 2 (generally welded or plugged in), and the crossbeam 2, the column 1 and the anti-collision bar 3 are all provided with buffer materials, and the buffer materials (such as rubber or polyethylene foam) are used to reduce the impact force caused by the crossbeam 2, the column 1 and the anti-collision bar 3 during a vehicle collision; the crossbeam 2, the column 1 and the anti-collision bar 3 can also be provided with reflective strips for enhancing visibility, and the reflective strips are used to enhance the visibility of the guardrail at night or in bad weather conditions, and remind the driver to pay attention to road safety; the axial cross-section of the crossbeam 2 is preferably a regular hexagon, and a connecting plate 4 is provided on the column 1, and the crossbeam 2 is connected to the connecting plate 4, and an opening is provided on the connecting plate 4 The opening is for the crossbeam 2 to be inserted, and a plurality of connecting grooves 5 are provided on the inner wall of the opening, and a limit block 6 is provided in the connecting groove 5. The number of connecting grooves 5 provided on each of the connecting plates 4 is four, and the inner walls of the four connecting grooves 5 on the same connecting plate 4 and the corresponding limit blocks 6 are each connected by a first elastic member 7. The four limit blocks 6 on each of the connecting plates 4 are used to abut against the crossbeam 2. A second inclined surface 8 is provided, and each of the connecting plates 4 has two grooves 9 symmetrically provided. The two grooves 9 on the same connecting plate 4 are respectively located in the gap between two adjacent connecting grooves 5. A positioning block 10 is slidably installed in each of the grooves 9. The inner wall of the groove 9 and the corresponding positioning block 10 are connected by a second elastic member 11. Two positioning grooves 12 are symmetrically provided on each of the beams 2. Each of the positioning blocks 10 and the corresponding positioning grooves 12 are plugged into each other. The four limit blocks 6 and the two positioning blocks 10 on the same connecting plate 4 are arranged in a one-to-one correspondence with the six sides of the regular hexagon of the beam 2. Both sides of each of the positioning grooves 12 and the corresponding positioning blocks 10 are set as first inclined surfaces 13. The positioning grooves 12 and the positioning blocks 10 are located on both sides of the axial direction of the beam 2. Both sides are symmetrically provided with the first inclined surfaces 13, so that the positioning grooves 12 and the positioning blocks 10 are isosceles trapezoidal (such as Figure 4As shown), when the staff connects the column 1 and the beam 2, the staff inserts the beam 2 from the part between the limit blocks 6 into the middle part of the connecting plate 4, and then the beam 2 squeezes the two limit blocks 6, so that the beam 2 pushes the limit block 6 to slide toward one end inside the connecting groove 5, so that the limit block 6 squeezes the first elastic member 7 (the first elastic member 7 is an original member that can be telescopically reset, preferably a spring), so that the first elastic member 7 is in a compressed state. Synchronously, the beam 2 pushes the positioning block 10 to slide toward one end inside the groove 9, so that the positioning block 10 presses the second elastic member 11 (the second elastic member 11 is an original member that can be telescopically reset The original part of the position, preferably a spring) is squeezed to make the second elastic member 11 in a compressed state until the positioning block 10 is inserted into the positioning groove 12 on the beam 2. Under the rebound action of the second elastic member 11, the second elastic member 11 pushes the positioning block 10 to be inserted into the positioning groove 12 on the beam 2, so that the positioning block 10 performs an axial positioning operation on the beam 2. That is, since the beam 2 is a regular hexagonal structure, when the beam 2 is inserted into the part between the limit blocks 6, the tip of the beam 2 (that is, the outer corner position of the regular hexagon) and the gap position of the limit block 6 are pressed against each other, so that the beam 2 can be inserted into the part between the limit blocks 6 (such as Figure 10 As shown), synchronously, under the rebound action of the first elastic member 7, the first elastic member 7 pushes the second inclined surface 8 on the limiting block 6 to abut against the surface of the beam 2, so that each limiting block 6 limits the outer wall of the beam 2 to prevent the beam 2 from sliding out of the connecting plate 4 when it is not subjected to force. When the beam 2 is hit by too much force, due to the limiting connection between it and the column 1, the positioning groove 12 on the beam 2 and the positioning block 10 are separated from each other, that is, the positioning groove 12 on the beam 2 and the positioning block 10 are both provided with a first inclined surface 13, so that the positioning groove 12 can be under the force of the beam 2. The positioning block 10 slides out from the tight position between the positioning groove 12 and the first inclined surface 13 of the positioning block 10. Synchronously, since the surface on the beam 2 and the second inclined surface 8 on the limit block 6 abut against each other, the beam 2 can slide out of the connecting plate 4 between the two limit blocks 6, so that the beam 2 will not affect other columns 1 and beams 2, thereby reducing the risk of collapse of other beams 2 and columns 1. Only the impacted part of the beam 2 is damaged, and the entire piece (or row) of beams 2 and columns 1 will not collapse, thereby reducing the replacement of beams 2 and columns 1.

[0033] The shortcoming of the existing technology is that since the road guardrail is set in the middle of the road, it is inevitable to be hit. When the road guardrail is hit, since the road guardrail is fixedly connected, the road guardrail will usually be hit in a chain reaction, causing the entire road guardrail to collapse on the road surface, and all of them need to be replaced.

[0034] The beneficial effect of this embodiment is that: when the crossbeam 2 and the column 1 are connected and installed, the crossbeam 2 is inserted into the part between the various limit blocks 6, so that the various limit blocks 6 synchronously perform limit connection processing on the crossbeam 2, thereby realizing the installation between the crossbeam 2 and the column 1. When the crossbeam 2 or the column 1 is hit (especially the crossbeam 2 in the middle part of the road guardrail), since the crossbeam 2 and the column 1 are in a limit connection, when the crossbeam 2 is hit, only the impacted part is damaged, and the entire piece (or row) of the crossbeam 2 and the column 1 will not collapse, thereby reducing the replacement of the crossbeam 2 and the column 1.

[0035] In another embodiment provided by the present invention, since the connection of the crossbeam 2 has a certain degree of mobility, in order to prevent a small impact force or pushing force from causing the crossbeam 2 to separate from the column 1, in this embodiment, each connecting plate 4 is provided with a square groove 14 on the outside of the connecting groove 5, that is, the number of square grooves 14 is four, and a baffle 15 is slidably installed in each square groove 14, and each baffle 15 and the inner wall of the corresponding square groove 14 are connected by a third elastic member 16, and a through groove 17 is provided in the middle between each square groove 14 and the adjacent connecting groove 5, and a locking rod 18 is rotatably installed in each through groove 17 through a positioning axis, and each locking rod 18 is located at one end of the square groove 14 and is tightly pressed against the end of the baffle 15 located inside the square groove 14, and each locking rod 18 is mutually cooperated between one end of the connecting groove 5 and the limit block 6.

[0036] Specifically, when the crossbeam 2 is hit, the crossbeam 2 slides out of the connecting plate 4 from the part between the limit blocks 6, so that the crossbeam 2 pushes the limit block 6 to slide toward one end inside the connecting groove 5, so that the limit block 6 squeezes the first elastic member 7, so that the first elastic member 7 is in a compressed state. Synchronously, the crossbeam 2 pushes the positioning block 10 to slide toward one end inside the groove 9, so that the positioning block 10 squeezes the second elastic member 11, so that the second elastic member 11 is in a compressed state, until the limit block 6 slides to the innermost position in the connecting groove 5 (that is, the crossbeam 2 moves from the two limit blocks to the innermost position). When the locking rod 18 is in the position where the blocks 6 can slide out, the crossbeam 2 pushes the limiting block 6 to the position where it slides in the connecting groove 5), and the limiting block 6 pushes the locking rod 18 to rotate around the positioning axis, so that the locking rod 18 first pushes the baffle 15 to move toward one end outside the square groove 14, so that the baffle 15 first stretches the third elastic member 16 to a certain extent, so that the locking rod 18 is disengaged from the baffle 15 after rotating a certain angle, so that the locking rod 18 no longer positions the baffle 15, and the third elastic member 16 (the third elastic member 16 is an original part that can be telescopically reset, preferably an elastic member) is engaged. When the locking rod 18 no longer positions the baffle 15, the third elastic member 16 pulls the baffle 15 to slide toward one end of the inner side of the square groove 14. In this embodiment, when a pedestrian moves the cross beam 2, the third elastic member 16 pulls the baffle 15 toward one end of the inner side of the square groove 14. When the locking rod 18 no longer positions the baffle 15, the third elastic member 16 pulls the baffle 15 to slide toward one end of the inner side of the square groove 14. In this embodiment, when a pedestrian moves the cross beam 2, the third elastic member 16 pulls the baffle 15 toward one end of the inner side of the square groove 14. When shaking, the beam 2 performs a certain squeezing operation on the limit block 6. As long as the beam 2 has not reached the position where the limit block 6 is pushed to drive the locking rod 18 to rotate, and the limit block 6 is required to drive the locking rod 18 to rotate, the baffle 15 is pushed to move toward the outer end of the straight groove 32 first. Therefore, when a certain shaking force is not reached, the baffle 15 and the limit block 6 will still perform a stable limit connection operation on the beam 2, thereby improving the stability of the limit connection between the beam 2 and the column 1. The setting of the baffle 15 can prevent the beam 2 from sliding out of the connecting plate 4 after an accidental touch.

[0037] In another embodiment provided by the present invention, each of the columns 1 is provided with a support unit, and the support unit includes a support plate 19, and each of the two side walls of each of the columns 1 is provided with a through slot 20, and each of the through slots 20 is rotatably installed with a support plate 19 through a limit shaft, and each of the support plates 19 is provided with a first helical gear 21, and two fourth elastic members 22 are symmetrically installed at the bottom end of the interior of each of the columns 1, that is, two fourth elastic members 22 are symmetrically installed at the bottom end of the interior of each column 1, and each of the fourth elastic members 22 is respectively installed with a second helical gear 23, and each of the first helical gears 21 corresponds to The second helical teeth 23 are locked and matched with each other, and each of the columns 1 is provided with an auxiliary plate 24. A fifth elastic member 25 is symmetrically installed on each of the auxiliary plates 24. Each of the fifth elastic members 25 is connected to its corresponding support plate 19. An auxiliary groove 26 is provided at the position of the connecting groove 5 on each of the columns 1 and the connecting plate 4 at the bottom of the column 1. The limit block 6 in the connecting groove 5 at the bottom of the connecting plate 4 at the bottom of each of the columns 1 and the corresponding second helical tooth 23 are connected by a connecting member 27, and each of the connecting members 27 is installed in the auxiliary groove 26 by sliding fit.

[0038] Specifically, since the crossbeam 2 will cause a certain impact force on the column 1 when it is hit, the column 1 may collapse. In order to prevent the collapse of one of the columns 1 and reduce the collapse of other columns 1, it is necessary to provide a greater supporting force for the impacted column 1. In this embodiment, when the crossbeam 2 is hit, the crossbeam 2 slides out of the connecting plate 4 from the part between the limit blocks 6, so that the crossbeam 2 pushes the limit block 6 to slide toward one end inside the connecting groove 5, so that the limit block 6 squeezes the first elastic member 7, so that the first elastic member 7 is in a compressed state. Synchronously, the crossbeam 2 pushes the positioning block 10 to slide toward one end inside the groove 9, so that The positioning block 10 squeezes the second elastic member 11, so that the second elastic member 11 is in a compressed state until the limit block 6 slides to the innermost position in the connecting groove 5 (that is, when the beam 2 can slide out from between the two limit blocks 6, the beam 2 pushes the limit block 6 to slide in the connecting groove 5). At this time, the limit block 6 pushes the connecting member 27 to slide toward the bottom end of the column 1, and the connecting member 27 drives the second helical gear 23 to slide toward the bottom end of the column 1, so that the second helical gear 23 squeezes the fourth elastic member 22 (the fourth elastic member 22 is a component that can be telescopically reset, preferably a spring), so that the fourth elastic member 2 2 is in a compressed state, so that the second helical gear 23 and the first helical gear 21 are separated from each other. Under the elastic force of the fifth elastic member 25 (the fifth elastic member 25 is a component capable of telescopic reset, preferably a spring), the fifth elastic member 25 pushes the support plate 19 to rotate a certain angle around the limit axis (because when the first helical gear 21 and the second helical gear 23 abut against each other, the support plate 19 and the through groove 20 are sealed with each other, and the support plate 19 is vertically arranged on the column 1. Under the mutual locking action of the first helical gear 21 and the second helical gear 23, the support plate 19 compresses the fifth elastic member 25, so that the support plate 19 Under the elastic force of the fifth elastic member 25, the locking installation between the first bevel gear 21 and the second bevel gear 23 is more stable), so that the support plate 19 forms a certain angle with the column 1 under the elastic force of the fifth elastic member 25, so that the support plate 19 can provide a certain supporting force for the column 1. When the column 1 collapses after being hit, the support plate 19 opened on the column 1 provides a certain supporting force for the column 1, so that the support plate 19 provides support force for the collapse of the column 1, and the collapsed column 1 and the support plate 19 provide a buffering effect for the impact force, preventing other columns 1 and beams 2 from being affected.

[0039] In another embodiment provided by the present invention, each of the support plates 19 is provided with a card slot 28, and each of the card slots 28 has a sliding plate 29 slidably installed therein. Each of the columns 1 is provided with a support unit, and the bottom end of each of the sliding plates 29 is pressed against the inner wall of the bottom end of the through groove 20. Each of the columns 1 is provided with a clamping member 30, and each of the clamping members 30 is symmetrically provided with a gradient surface 31 on both sides. Each of the gradient surfaces 31 is respectively pressed against and fitted with its corresponding sliding plate 29, and each of the gradient surfaces 31 is an arc surface with a radius gradually decreasing from the top of the column 1 to the bottom side of the column 1, and the center of the arc surface coincides with the center of the limit axis.

[0040] Specifically, when the crossbeam 2 is hit, the crossbeam 2 slides out of the connecting plate 4 from the part between the limit blocks 6, so that the crossbeam 2 pushes the limit block 6 to slide toward one end inside the connecting groove 5, so that the limit block 6 squeezes the first elastic member 7, so that the first elastic member 7 is in a compressed state. Synchronously, the crossbeam 2 pushes the positioning block 10 to slide toward one end inside the groove 9, so that the positioning block 10 squeezes the second elastic member 11, so that the second elastic member 11 is in a compressed state, until the limit block 6 slides to the innermost position in the connecting groove 5 (that is, the position where the crossbeam 2 can slide out from between the two limit blocks 6, and the crossbeam 2 pushes the limit block 6 to slide in the connecting groove 5). When the limit block 6 pushes the connecting piece 27 to slide toward the bottom end of the column 1, the connecting piece 27 drives the second bevel gear 23 to slide toward the bottom end of the column 1, so that the second bevel gear 23 squeezes the fourth elastic piece 22 (the fourth elastic piece 22 is a component that can be telescopically reset, preferably a spring), so that the fourth elastic piece 22 is in a compressed state, so that the second bevel gear 23 and the first bevel gear 21 are separated from each other. Under the elastic force of the fifth elastic piece 25, the fifth elastic piece 25 pushes the support plate 19 to rotate a certain angle with the limit axis as the center, so that the support plate 19 forms a certain angle with the column 1 under the elastic force of the fifth elastic piece 25. At this time, due to The length of the support plate 19 is not enough, so that the support plate 19 cannot be pressed against the road surface. Only when the column 1 collapses will the support plate 19 provide supporting force for the column 1. In this embodiment, under the elastic force of the fifth elastic member 25, the fifth elastic member 25 pushes the support plate 19 to rotate a certain angle around the limit axis. The sliding plate 29 at the top of the support plate 19 slides along the trajectory of the gradual surface 31 on the pressing member 30. Since the gradual surfaces 31 are respectively tightly fitted with their corresponding sliding plates 29, and each gradual surface 31 is an arc surface with a radius gradually decreasing from the top of the column 1 to the bottom side of the column 1, the sliding plate 29 slides along the trajectory of the gradual surface 31. The sliding plate 29 slides along the track of the card slot 28, so that the sliding plate 29 slides to a position close to the ground under the action of the gradual surface 31. Preferably, a concave surface is provided on the gradual surface 31, and the concave surface and the sliding plate 29 are tightly arranged with each other. When the sliding plate 29 slides to the concave position, the sliding plate 29 and the concave surface are tightly pressed against each other. At this time, the bottom end of the sliding plate 29 is tightly pressed against the ground, so that the support plate 19, the sliding plate 29, the column 1 and the ground form a triangle, so that the sliding plate 29 and the support plate 19 can provide a stable supporting force for the column 1, thereby improving the stability of the column 1 when it is hit, and preventing other columns 1 and beams 2 from being affected;Preferably, a straight slot 32 is formed at the bottom end of each sliding plate 29 near the side of the column 1. A lifting plate 33 is rotatably mounted in each straight slot 32 via an auxiliary shaft. When the sliding plate 29 is pressed against the road surface, the lifting plate 33 rotates around the auxiliary shaft, forming a triangle with the lifting plate 33, the sliding plate 29, and the road surface, thereby improving the stability of the support force provided by the sliding plate 29 and the support plate 19 to the column 1.

[0041] In another embodiment provided by the present invention, a lifting unit is provided on the cross beam 2 at the bottom of each of the columns 1, and the lifting unit includes a straight plate 36. Two flat grooves 35 are symmetrically provided on the cross beam 2 at the bottom of each of the columns 1. A straight plate 36 is rotatably installed in each of the flat grooves 35 through a pin shaft 34. A hemispherical groove 37 is provided at the top of each of the flat grooves 35, and a rubber protrusion 38 is provided at the top of each of the straight plates 36. Each of the rubber protrusions 38 is respectively arranged corresponding to its corresponding hemispherical groove 37.

[0042] Specifically, when a pedestrian climbs over the beam 2, the pedestrian steps on the beam 2, and the beam 2 bends due to the squeezing force of the pedestrian. When the beam 2 bends, the rubber protrusion 38 slides out of the hemispherical groove 37, so that the rubber protrusion 38 and the hemispherical groove 37 no longer position the straight plate 36, so that the straight plate 36 rotates and presses against the road surface, so that the straight plate 36 provides a certain supporting force for the beam 2, preventing the beam 2 from breaking due to the pressure generated when the pedestrian climbs over, thereby improving the load-bearing capacity of the beam 2.

[0043] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A channel protection device for municipal engineering, comprising a column and a beam mounted on a road surface, wherein two beams are provided above and below the column, and the two beams on the same column are connected by a plurality of evenly arranged anti-collision rods, characterized in that: It also includes a connecting unit, which includes a connecting plate. The connecting position of the column and the beam is provided with a connecting plate. A plurality of connecting grooves are evenly opened on the connecting plate. A limit block is slidably provided in each of the connecting grooves. The limit connection of the beam is achieved through the synchronous cooperation of each of the limit blocks.

2. A channel protection device for municipal engineering according to claim 1, characterized in that: The axial cross section of the cross beam is a regular hexagon.

3. A channel protection device for municipal engineering according to claim 2, characterized in that: The number of the connecting grooves provided on each of the connecting plates is four, and the inner walls of the four connecting grooves on the same connecting plate are connected to the corresponding limiting blocks respectively via a first elastic member.

4. A channel protection device for municipal engineering according to claim 3, characterized in that: Two grooves are symmetrically provided on each of the connecting plates, and the two grooves on the same connecting plate are respectively located in the gap between two adjacent connecting grooves. A positioning block is slidably installed in each of the grooves, and two positioning grooves are symmetrically provided on each of the crossbeams. Each of the positioning blocks and the corresponding positioning grooves are plugged into and fitted with each other.

5. A channel protection device for municipal engineering according to claim 4, characterized in that: The four limit blocks and the two positioning blocks on the same connecting plate are arranged in one-to-one correspondence with the six sides of the regular hexagon of the crossbeam.

6. A channel protection device for municipal engineering according to claim 4, characterized in that: Both sides of each positioning groove and the corresponding positioning block are arranged as first inclined surfaces.

7. A channel protection device for municipal engineering according to claim 3, characterized in that: The contact surfaces between the four limiting blocks on each of the connecting plates and the crossbeam are all second inclined surfaces.

8. A channel protection device for municipal engineering according to claim 4, characterized in that: The inner wall of each groove is connected to its corresponding positioning block via a second elastic member.

9. A channel protection device for municipal engineering according to claim 1, characterized in that: Buffer materials are provided on the cross beams, columns and anti-collision bars.

10. A channel protection device for municipal engineering according to claim 1, characterized in that: Reflective strips for enhancing visibility are provided on the crossbeams, columns and anti-collision bars.

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