Connecting transition pipe fitting at telescopic position of corrugated plate bridge guardrail
By setting up the connection transition pipes of the waveform beam and buffering component at the telescopic joints of the waveform board, solve the problems of lack of expansion, continuity and buffer effects in existing technologies, and achieve better retractable, buffer and connection effects , Improve safety performance.
Patent Information
- Application Number
- CN202421725975.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The installation of existing corrugated plate bridge guardrails at the expansion joints has problems such as insufficient expansion, poor continuous performance and buffering effect, and obvious safety hazards.
Design a transition pipe connecting the expansion and contraction parts of the corrugated plate bridge guardrail, and form an overall structure by setting corrugated beams and buffer components at the ends of two adjacent corrugated guard plates. When hit by a vehicle or external force, the buffer components, corrugated beams and corrugated guardrails resist deformation to protect the vehicle and passengers.
The demand for retractable treatment at the telescopic joints is realized, the buffer connection effect is enhanced, it is easy to install and use, improves protection performance, and avoids hidden safety hazards.
Smart Images
Figure CN222390249U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge guardrails, and in particular relates to a transition pipe fitting connected at the expansion and contraction position of a corrugated plate bridge guardrail. Background Art
[0002] Bridge guardrail is the main form of semi-rigid guardrail. It is a continuous structure with corrugated steel guardrail plates spliced together and supported by columns. When a vehicle collides with it, it absorbs energy and is not easily destroyed. At the same time, it can provide good protection for vehicles and passengers.
[0003] At present, the common installation forms of corrugated plate bridge guardrails at expansion joints mainly include:
[0004] 1. Several corrugated protective plates are fixedly connected into an integrated structure by fasteners such as bolts or rivets in an end-to-end overlap manner. Although this structure is convenient during construction and installation and can be quickly connected and installed, the expansion amount of this structure at the expansion joint is too small and cannot meet the expansion and contraction requirements of the bridge.
[0005] 2. The ends of adjacent corrugated guard plates are not connected, leaving a gap in the middle to allow them to deform. By adding column supports at the connecting ends of the corrugated guard plates, the deformation of the corrugated guard plates caused by collision is reduced, thereby avoiding continuous damage to the corrugated guard plates after collision. However, since the ends of the corrugated guard plates are not connected, this structure makes it easy for the end steel sheets of the corrugated guard plates to be inserted into the vehicle body in the event of a collision on the road, causing serious safety accidents.
[0006] Therefore, in view of the problems existing in the installation of the expansion joint of the corrugated plate bridge guardrail as mentioned above, the utility model designs a transition pipe connecting the expansion joint of the corrugated plate bridge guardrail to solve the problems existing in the above-mentioned prior art. Utility Model Content
[0007] 1. Technical issues to be resolved
[0008] In view of the shortcomings of the prior art, the utility model provides a transition pipe fitting for connecting the expansion joint of a corrugated plate bridge guardrail, which meets the expansion processing requirements at the expansion joint, and has the advantages of good buffer connection effect, easy installation and use, and good protective performance. It solves the problems of insufficient expansion and contraction at the installation point of the expansion joint of the existing corrugated plate bridge guardrail, poor continuous performance and buffering effect, and obvious safety hazards.
[0009] (II) Technical solution
[0010] In order to achieve the above-mentioned purpose of facilitating the connection of adjacent corrugated protective plates and achieving telescopic buffering and connection effects, the utility model provides the following technical solutions:
[0011] A transition pipe connecting the expansion and contraction part of a corrugated plate bridge guardrail, comprising
[0012] A corrugated beam is symmetrically arranged at the ends of two adjacent corrugated guard plates, and one end of the corrugated beam is connected to the corrugated guard plate, and the other end extends to the outside of the end of the corrugated guard plate;
[0013] The buffer component is arranged between two adjacent corrugated beams and is connected to both the corrugated beam and the corrugated protective plate.
[0014] In a preferred embodiment, the buffer assembly comprises
[0015] The steel sleeve is symmetrically mounted on both ends of the casing and matches the corrugated beam and corrugated protective plate.
[0016] The sleeve is a full-length steel pipe movably arranged between two corrugated beams, and any one end of the sleeve is fixedly connected to the steel sleeve.
[0017] In a preferred embodiment, the steel sleeve is movably clamped in the corrugated groove on the rear side of the corrugated beam and the corrugated guardrail plate.
[0018] In a preferred embodiment, an anti-blocking block is further provided on the inner side of a steel sleeve movably provided at one end of the sleeve, and the anti-blocking block is sleeved on the outer side of the sleeve.
[0019] In a preferred embodiment, the anti-blocking block is a rubber anti-slip sleeve arranged between the steel sleeve and the sleeve.
[0020] In a preferred embodiment, the corrugated beam is a corrugated plate-like structure arranged on the front side of the corrugated guardrail plate, and a prestressed plate is also arranged at one end of the corrugated beam extending outward from the end of the corrugated guardrail plate, and the prestressed plate is connected to the corrugated beam through a buffer plate.
[0021] In a preferred embodiment, the buffer plate is provided with a plurality of through holes, and the through holes match the steel sleeve.
[0022] In a preferred embodiment, the buffer plate is an arc-shaped plate structure that bends inwardly along the length direction of the corrugated beam.
[0023] In a preferred embodiment, the curvature of the buffer plate is not greater than the sum of the outer diameter of the steel sleeve and the thickness of the corrugated protective plate.
[0024] In a preferred embodiment, a guide plate is further provided at the rear side of the corrugated beam, and a limiting hole is provided on the guide plate to match the steel sleeve.
[0025] (III) Beneficial effects
[0026] Compared with the prior art, the utility model provides a transition pipe connecting the expansion and contraction part of the corrugated plate bridge guardrail, which has the following beneficial effects:
[0027] 1. The transition structure can connect the ends of two adjacent corrugated guard plates to form a whole by setting the buffer assembly and the corrugated beam. When the end of the corrugated guardrail plate or the buffer assembly is hit by a vehicle or an external force, the buffer assembly, the corrugated beam and the corrugated guardrail plate resist deformation to provide buffering, which can effectively protect the vehicle and the driver and passengers.
[0028] 2. Through the setting of the corrugated beam, it can be closely connected with the corrugated guardrail plate, strengthen the end plate strength of the corrugated guardrail plate, and protect the end of the corrugated guardrail plate; at the same time, the buffer component is fixed by applying prestress through the corrugated beam to form a continuous support buffer mechanism to protect the end of the corrugated guardrail plate;
[0029] 3. Through the structural setting of the buffer component, when in use, buffering is performed through the anti-deformation effect of the buffer component's own structure, the relative activity of the movable short steel sleeve and the casing, and the resistance-increasing and energy-absorbing effect of the anti-blocking block. While ensuring sufficient expansion and contraction at the expansion joint, the collision force can be distributed to more span structures, thereby increasing the overall strength of the guardrail, facilitating the connection of adjacent corrugated protective plates, and achieving the purpose of expansion, buffering and connection effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is an installation effect diagram of the transition pipe connected to the expansion and contraction part of the corrugated plate bridge guardrail of the utility model;
[0031] Figure 2 This is a schematic diagram of the structure of the transition pipe connected to the expansion and contraction part of the corrugated plate bridge guardrail of the utility model;
[0032] Figure 3 This is a schematic diagram of the structure of the corrugated beam of the utility model from a rear-view angle;
[0033] Figure 4 This is an installation effect diagram of the buffer component of the utility model;
[0034] Figure 5 This is a schematic diagram of the structure of the buffer component of the utility model;
[0035] Figure 6 This is an exploded view of the buffer component of the utility model.
[0036] In the figure: 1. Buffer assembly; 11. Steel sleeve; 12. Casing; 13. Anti-blocking block; 2. Corrugated beam; 21. Prestressed plate; 22. Guide plate; 23. Buffer plate; 3. Corrugated guardrail plate. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] See also Figure 1-6 , the utility model provides a technical solution:
[0039] A transition pipe connecting the expansion and contraction part of a corrugated plate bridge guardrail, arranged between the ends of two adjacent corrugated guardrail plates 3, comprises a buffer assembly 1 and a corrugated beam 2;
[0040] The corrugated beam 2 is arranged at the front side of the end of the corrugated guardrail plate 3 and is connected to the corrugated guardrail plate 3 through a positioning connecting bolt;
[0041] The buffer assembly 1 is arranged between two adjacent corrugated beams 2 and is used in conjunction with the corrugated beams 2 to form a connecting transition structure at the extension and contraction position of the corrugated guardrail plate 3;
[0042] In this embodiment, the thickness of the corrugated guardrail plate 3 is thickened by providing a corrugated beam 2, thereby increasing the strength of the corrugated guardrail plate 3 and preventing it from being deformed significantly when impacted by an external force; at the same time, the buffer component 1 is installed between two adjacent corrugated guardrail plates 3 through the corrugated beam 2, so that the end portions of the corrugated guardrail plates 3 form a whole. When the end portions of the corrugated guardrail plates 3 or the buffer component 1 are impacted by a vehicle or subjected to an external force, the buffer component 1, the corrugated beam 2 and the corrugated guardrail plate 3 resist deformation to provide buffering, thereby protecting the vehicle and the driver and passengers.
[0043] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the corrugated beam 2 is a corrugated plate-like structure matching the shape of the corrugated guardrail plate 3, and a screw hole is provided at one end of the corrugated beam 2 to connect with the corrugated guardrail plate 3, and the other end of the corrugated beam 2 extends to the outside of the end of the corrugated guardrail plate 3, and a prestressed plate 21 is provided at this end through a buffer plate 23, and a through hole is provided on the buffer plate 23 for use with the buffer assembly 1;
[0044] In this embodiment, the corrugated beam 2 is installed on the end of the corrugated guardrail plate 3 by using a connecting bolt, so that the buffer plate 23 and the prestressed plate 21 extend to the outside of the end of the corrugated guardrail plate 3. At the same time, the two ends of the buffer assembly 1 are respectively passed through the through holes on the two adjacent corrugated beams 2, and can be pressed on the prestressed plate 21 and inserted into the corrugated groove on the rear side of the corrugated guardrail plate 3, forming a continuous support and buffer mechanism to protect the end of the corrugated guardrail plate 3.
[0045] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the buffer plate 23 is an arc-shaped plate structure that is bent inwardly along the length direction of the corrugated beam 2 and is integrally formed with the corrugated beam 2 and the prestressed plate 21, and the curvature of the buffer plate 23 is not greater than the sum of the diameter of the buffer assembly 1 and the thickness of the corrugated guardrail plate 3;
[0046] In this embodiment, through the bending setting of the buffer plate 23, the prestressed plate 21 can apply prestress to the buffer component 1 on the rear side when in use, thereby ensuring the integrity of the structure after installation, and at the same time providing support force to the buffer component 1 to avoid deformation of the buffer component 1; and the curvature of the buffer plate 23 is set to be no greater than the sum of the diameter of the buffer component 1 and the thickness of the corrugated guardrail plate 3, so that the buffer component 1 can apply prestress to the prestressed plate 21 after installation, and use the prestress to position the buffer component 1 on the two corrugated beams 2 to prevent its position from changing under non-human operation, thereby ensuring its buffering effect.
[0047] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4 As shown, in order to guide and position the buffer assembly 1 during installation, a guide plate 22 is further provided in the corrugated groove at the rear side of the corrugated beam 2, and a plurality of through holes are provided along the corrugated groove on the guide plate to cooperate with the buffer assembly 1;
[0048] In this embodiment, the buffer assembly 1 can be guided and fixed by setting the guide plate 22, so that the buffer assembly 1 is horizontally installed on the corrugated beam 2 to ensure the integrity of the structure.
[0049] As a preferred embodiment, Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the buffer assembly 1 includes a steel sleeve 11 and a sleeve 12, wherein the steel sleeve 11 is symmetrically sleeved on both ends of the sleeve 12, and a positioning bolt is provided at any end of the sleeve 12 to be fixedly connected to the steel sleeve 11, and the steel sleeve 11 at the other end is movably sleeved on the sleeve 12;
[0050] In this embodiment, the steel sleeves 11 are symmetrically sleeved on both ends of the sleeve 12, and any one of the steel sleeves 11 is fixedly connected to the sleeve 12 by using positioning bolts, and the other steel sleeve 11 is movably sleeved on the sleeve 12, and the two steel sleeves 11 are clamped in the corrugated groove to form a stable supporting structure to protect the end of the corrugated guardrail plate 3, and a buffering effect is played by the yielding effect between the movably installed steel sleeves 11 and the sleeve 12.
[0051] As a preferred embodiment, Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the steel sleeve 11 is used in conjunction with the through hole on the buffer plate 23 and the corrugated groove on the rear side of the corrugated beam 2;
[0052] In this embodiment, the steel sleeve 11 is passed through the through hole on the buffer plate 23 and the corrugated groove on the rear side of the corrugated beam 2 to form a stable supporting structure to protect the end of the corrugated guardrail plate 3.
[0053] As a preferred embodiment, Figure 6 As shown, an anti-blocking block 13 is also provided inside the steel sleeve 11 movably provided at one end of the sleeve 12. The anti-blocking block 13 is sleeved on the outside of the sleeve 12 and is a rubber anti-slip sleeve provided between the steel sleeve 11 and the sleeve 12;
[0054] In this embodiment, by providing the anti-obstruction block 13, the friction between the steel sleeve 11 and the sleeve 12 can be increased during use, thereby achieving an energy absorption effect when a collision occurs and reducing casualties of occupants; at the same time, the anti-obstruction block 13 can participate in the overall function of the guardrail, and can distribute the collision force to more span structures, thereby increasing the overall strength of the guardrail.
[0055] The construction and installation process of the transition pipe connecting the expansion and contraction part of the corrugated plate bridge guardrail of the utility model includes: first, the corrugated beam 2 and the buffer component 1 used in conjunction with the corrugated beam 2 are produced according to the specifications and shapes of the corrugated guardrail plate 3; then, during installation, the two corrugated beams 2 are first installed at the ends of the corrugated guardrail plate 3, and the prestressed plate 21 and the buffer plate 23 are extended out of the ends of the corrugated guardrail plate 3, and the installation position of the corrugated beam 2 is adjusted to be centered; then the buffer component 1 is assembled, the steel sleeves 11 are symmetrically sleeved on the two ends of the sleeve 12, and one of the steel sleeves 11 is fixed with positioning bolts; finally, the buffer component 1 is installed in the corrugated groove on the rear side of the corrugated guardrail plate 3 by mechanical means, and prestress is applied to the prestressed plate 21, and the buffer component 1 is positioned on the two corrugated beams 2 by the prestress.
[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A transition pipe connecting the expansion and contraction part of a corrugated plate bridge guardrail, characterized in that: It comprises a corrugated beam (2) symmetrically arranged at the ends of two adjacent corrugated guardrail plates (3), one end of the corrugated beam (2) is connected to the corrugated guardrail plate (3), and the other end extends to the outside of the end of the corrugated guardrail plate (3); The buffer assembly (1) is arranged between two adjacent corrugated beams (2) and is connected to both the corrugated beams (2) and the corrugated guardrail plate (3).
2. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail according to claim 1, characterized in that: The buffer component (1) comprises The steel sleeve (11) is symmetrically mounted on both ends of the sleeve (12) and matches the corrugated beam (2) and the corrugated guardrail plate (3). The sleeve (12) is a full-length steel pipe movably arranged between the two corrugated beams (2), and any one end of the sleeve (12) is fixedly connected to the steel sleeve (11).
3. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail as claimed in claim 2, characterized in that: The steel sleeve (11) is movably clamped in the corrugated groove at the rear side of the corrugated beam (2) and the corrugated guardrail plate (3).
4. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail as claimed in claim 2, characterized in that: An anti-blocking block (13) is also arranged inside the steel sleeve (11) movably arranged at one end of the sleeve (12), and the anti-blocking block (13) is sleeved on the outside of the sleeve (12).
5. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail as claimed in claim 4, characterized in that: The anti-blocking block (13) is a rubber anti-slip sleeve arranged between the steel sleeve (11) and the sleeve (12).
6. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail as claimed in claim 2, characterized in that: The corrugated beam (2) is a corrugated plate structure arranged on the front side of the corrugated guardrail plate (3), and a prestressed plate (21) is also arranged at one end of the corrugated beam (2) extending outside the end of the corrugated guardrail plate (3), and the prestressed plate (21) is connected to the corrugated beam (2) via a buffer plate (23).
7. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail according to claim 6, characterized in that: The buffer plate (23) is provided with a plurality of penetration holes, and the penetration holes match the steel sleeve (11).
8. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail according to claim 6, characterized in that: The buffer plate (23) is an arc-shaped plate structure that bends inwardly along the length direction of the corrugated beam (2).
9. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail according to claim 8, characterized in that: The curvature of the buffer plate (23) is not greater than the sum of the outer diameter of the steel sleeve (11) and the thickness of the corrugated guardrail plate (3).
10. A transition pipe for connecting the expansion and contraction part of a corrugated plate bridge guardrail according to claim 6, characterized in that: A guide plate (22) is also provided on the rear side of the corrugated beam (2), and a limiting hole is provided on the guide plate (22) to match the steel sleeve (11).