Bridge anti-collision guardrail
By using a combination of barrier bars, folding bars, support bars, and extension bars in the bridge crash barrier to form a stable triangular support, and combining it with springs and buffer pads, the problem of insufficient crash protection effect is solved, achieving higher impact resistance and impact buffering, and facilitating installation and maintenance.
Patent Information
- Application Number
- CN202520308901.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing bridge crash barriers are not strong enough to withstand collisions, lack a triangular support structure, and while they are efficient to install, they are not structurally stable.
The structure consists of barrier bars, folding bars, support bars, and extension bars, forming a stable triangular support. Combined with springs and buffer pads, it provides cushioning and is fixed to the bridge with screws and bolts. The modular design makes it easy to disassemble and replace.
It improves the impact resistance of the crash barrier, provides effective impact cushioning, enhances the crash protection effect, and is easy to install and maintain.
Smart Images

Figure CN223880193U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of crash barrier, especially to a bridge crash barrier. BACKGROUND
[0002] The traffic condition around the bridge, as a key component of the traffic line, becomes more complex. When the vehicle drives on the bridge, it may deviate from the normal driving route due to various reasons (such as driver fatigue, sudden illness, vehicle failure, bad weather, etc.), and the crash barrier needs to provide a protective blocking effect to avoid the vehicle from rushing out of the bridge and causing more serious traffic accidents.
[0003] According to the search, the case with the announcement number "CN220619780U" mentioned "the utility model discloses a bridge crash barrier, including support column, guardrail, first U type bolt and support piece, the front part of support column is provided with support piece, the back of support piece is inserted with second U type bolt, second U type bolt passes through support piece and is screwed with fixed nut, fixed nut and support piece are fixed to the outside of support column, the front part of support piece is screwed with first U type bolt, first U type bolt passes through support piece and is screwed with connecting nut, first U type bolt and support piece are fixed with guardrail, guardrail, first U type bolt and support piece are provided with a plurality of groups on support column, the utility model discloses through the guardrail between support piece, then through the first U type bolt is inserted between support piece, then through connecting nut, first U type bolt is fixed to support piece, thereby the guardrail is fixed in support piece, the quick installation of guardrail is realized, and the operation is simple, and the installation efficiency is too fast.", which realizes the convenient installation of the device through the setting of guardrail, first U type bolt and support piece, and the simple structure is convenient to operate, therefore, when using, through the setting of first U type bolt and support piece, the guardrail is placed between the support piece, then the first U type bolt is inserted between the support piece, then the first U type bolt is fixed to the support piece through the connecting nut, so that the guardrail is fixed in the support piece, the quick installation of the guardrail is realized, and the operation is simple, and the installation efficiency is too fast, but the crash effect strength of the device is insufficient, and the triangular support structure and other structures are lacked to improve the crash effect.
[0004] Therefore, we provide a bridge crash barrier to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a bridge crash barrier to solve the problems in the above background technology.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: a bridge crash barrier, including blocking rod and folding rod, the inside one end of blocking rod is installed with folding rod, the inside of folding rod is installed with support rod, the inside of support rod is installed with extension rod, the outside of blocking rod is installed with fixed component.
[0007] Preferably, the blocking rod and the folding rod constitute a rotating structure through a shaft, the folding rod and the support rod constitute a rotating structure through a shaft, and the inside of the support rod constitutes a sliding structure with the extension rod through a clamping groove.
[0008] Preferably, the surface of the support rod is provided with a positioning hole, one end of the extension rod is threadedly connected with a first screw rod, and the other end of the extension rod is threadedly connected with a second screw rod.
[0009] Preferably, the surface of the blocking rod is fixedly connected with a fixed sleeve rod, the inside of the fixed sleeve rod is fixedly connected with a spring, the other side of the spring is abutted with a connecting rod, and the fixed sleeve rod and the connecting rod constitute a sliding structure through a clamping groove.
[0010] Preferably, the other end of the connecting rod is fixedly connected with a baffle, and the other side of the baffle is adhesively connected with a buffer pad.
[0011] Preferably, the fixed component comprises a slot plate, the bottom end of the blocking rod is inserted with the slot plate, both ends of the slot plate are fixedly connected with fixed rods, and the surface of the fixed rod is fixedly connected with a reflector plate.
[0012] Preferably, the top end outside of the fixed rod is inserted with a constraint slot plate, the upper surface of the fixed rod is threadedly connected with a third screw rod, and the outside of the third screw rod is sleeved with a limiting plate.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1, through blocking rod and support rod, folding rod, extension rod constitute folding structure and save transportation space, folding rod and blocking rod constitute right angle support, extension rod moves outward, through rotating first screw rod and passes through support rod positioning hole and fixes extension rod, through second screw rod and fixes extension rod on blocking rod, form stable triangle support structure, improve impact resistance, fixed sleeve rod and connecting rod constitute a certain impact absorbing structure through spring, provide a certain impact buffer, baffle and buffer pad constitute first layer anti -collision structure, through buffer pad itself rubber or other material characteristics and absorb a certain impact.
[0015] 2, through screw and fix fixed rod on bridge top, insert blocking rod into slot plate, insert constraint slot plate into fixed rod, and fix blocking rod top through clamping groove, fix limiting plate on fixed rod through third screw rod, abut constraint slot plate and prevent constraint slot plate from separating, and the modular structure is convenient to disassemble and replace damaged structure. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall front structure proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the cooperative structure of the fixing rod, the constraint groove plate, and the limiting plate proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the mating structure of the fixed sleeve rod, spring, and connecting rod proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the combined structure of the barrier bar, folding bar, and support bar proposed in this utility model.
[0020] In the diagram: 1. Barrier bar; 2. Folding bar; 3. Support bar; 4. Extension bar; 5. First screw; 6. Second screw; 7. Fixing sleeve bar; 8. Spring; 9. Connecting rod; 10. Baffle; 11. Buffer pad; 12. Slot plate; 13. Fixing rod; 14. Reflector; 15. Constraint slot plate; 16. Third screw; 17. Limiting plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-4 As shown, a bridge crash barrier includes a barrier arm 1 and a folding arm 2. The folding arm 2 is installed on the inner end of the barrier arm 1, a support arm 3 is installed on the inner side of the folding arm 2, an extension arm 4 is installed on the inner side of the support arm 3, and a fixing component is installed on the outer side of the barrier arm 1.
[0023] Furthermore, the barrier bar 1 and the folding bar 2 form a rotating structure through an axis, the folding bar 2 and the support bar 3 form a rotating structure through an axis, and the inner side of the support bar 3 forms a sliding structure with the extension bar 4 through a slot. The folding structure formed by the barrier bar 1, the support bar 3, the folding bar 2, and the extension bar 4 saves transportation space. The folding bar 2 and the barrier bar 1 form a right-angle support, and the extension bar 4 moves outward.
[0024] Further, the support rod 3 is provided with a positioning hole, one end of the extension rod 4 is threadedly connected with a first screw rod 5, the other end of the extension rod 4 is threadedly connected with a second screw rod 6, the extension rod 4 is fixed by rotating the first screw rod 5 through the positioning hole of the support rod 3, the extension rod 4 is fixed on the blocking rod 1 by the second screw rod 6, a stable triangular support structure is formed, and the impact resistance is improved.
[0025] Further, the surface of the blocking rod 1 is fixedly connected with a fixed sleeve rod 7, the inner side of the fixed sleeve rod 7 is fixedly connected with a spring 8, the other side of the spring 8 is abutted with a connecting rod 9, the fixed sleeve rod 7 and the connecting rod 9 constitute a sliding structure through a clamping groove, the fixed sleeve rod 7 and the connecting rod 9 constitute a structure for absorbing impact through the spring 8, and a certain impact buffering is provided.
[0026] Further, the other end of the connecting rod 9 is fixedly connected with a baffle 10, the other side of the baffle 10 is adhesively connected with a buffer pad 11, the baffle 10 and the buffer pad 11 constitute a first layer of anti-collision structure, and a certain impact is absorbed through the rubber or other material properties of the buffer pad 11 itself.
[0027] Further, the fixed assembly comprises a slot plate 12, the bottom end of the blocking rod 1 is inserted with the slot plate 12, both ends of the slot plate 12 are fixedly connected with a fixed rod 13, the surface of the fixed rod 13 is fixedly connected with a reflector plate 14, the fixed rod 13 is fixed on the top of the bridge by a screw to provide fixed support, the blocking rod 1 is inserted into the slot plate 12, and the reflector plate 14 provides a certain night reflection function.
[0028] Further, the top end of the fixed rod 13 is inserted with a constraint groove plate 15 on the outside, the upper surface of the fixed rod 13 is threadedly connected with a third screw rod 16, the outer side of the third screw rod 16 is sleeved with a limiting plate 17, the constraint groove plate 15 is inserted into the fixed rod 13 for combination, the top of the blocking rod 1 is fixed by a clamping groove, the limiting plate 17 is fixed on the fixed rod 13 by the third screw rod 16, and the constraint groove plate 15 is prevented from being separated, and the modular structure is convenient to disassemble and replace damaged structures.
[0029] Working principle: in use, the first step, by screw fixed rod 13 fixed in the bridge top provides fixed support, will block the rod 1 inserted into the slot plate 12, the reflector plate 14 provides a certain night light function, the second step, will be inserted into the fixed rod 13 combination of constraint slot plate 15, through the card slot fixed block rod 1 top, through the third screw 16 will limit plate 17 fixed in the fixed rod 13, resist the constraint slot plate 15 prevent constraint slot plate 15 off, modular structure convenient to replace damaged structure, the third step, through the block rod 1 and support rod 3, folding rod 2, extension rod 4 composition folding structure saves transportation space, folding rod 2 and block rod 1 constitute a right angle support, extension rod 4 moves outward, through the first screw 5 through the support rod 3 positioning hole will extend rod 4 fixed, through the second screw 6 will extend rod 4 fixed in the block rod 1, form stable triangular support structure, improve the impact resistance, the fourth step, fixed sleeve rod 7 through the spring 8 and connecting rod 9 composition absorbs a certain impact structure, provide a certain impact buffer, baffle 10 and buffer pad 11 constitute the first layer of anti-collision structure, through the buffer pad 11 itself rubber or other material properties absorb a certain impact, so it is complete a kind of bridge crash barrier use.
[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bridge crash barrier comprising a blocking rod (1) and a folding rod (2), the inner side of one end of the blocking rod (1) is provided with the folding rod (2), characterized in that, The inner side of the folding rod (2) is provided with a supporting rod (3), and the inner side of the supporting rod (3) is provided with an extension rod (4); the outer side of the blocking rod (1) is provided with a fixing assembly.
2. A bridge crash barrier according to claim 1, characterised in that The blocking rod (1) and the folding rod (2) are connected through a shaft to form a rotating structure, the folding rod (2) and the supporting rod (3) are connected through a shaft to form a rotating structure, and the inner side of the supporting rod (3) is connected with the extension rod (4) through a clamping groove to form a sliding structure.
3. A bridge crash barrier according to claim 2, wherein The supporting rod (3) is provided with a positioning hole in the surface, one end of the extension rod (4) is threadedly connected with a first screw rod (5), and the other end of the extension rod (4) is threadedly connected with a second screw rod (6).
4. A bridge crash barrier according to claim 1, wherein The surface of the blocking rod (1) is fixedly connected with a fixed sleeve rod (7), the inner side of the fixed sleeve rod (7) is fixedly connected with a spring (8), the other side of the spring (8) is abutted with a connecting rod (9), and the fixed sleeve rod (7) and the connecting rod (9) are connected through a clamping groove to form a sliding structure.
5. A bridge crash barrier according to claim 4, wherein The other end of the connecting rod (9) is fixedly connected with a baffle (10), and the other side of the baffle (10) is adhesively connected with a buffer pad (11).
6. A bridge crash barrier according to claim 1, wherein The fixing assembly comprises a slot plate (12), the bottom end of the blocking rod (1) is inserted with the slot plate (12), both ends of the slot plate (12) are fixedly connected with a fixed rod (13), and the surface of the fixed rod (13) is fixedly connected with a reflecting plate (14).
7. A bridge crash barrier according to claim 6, wherein The top end of the fixed rod (13) is inserted with a constraint slot plate (15) on the outer side, the upper surface of the fixed rod (13) is threadedly connected with a third screw rod (16), and the outer side of the third screw rod (16) is sleeved with a limiting plate (17).
Citation Information
Patent Citations
Bridge anti-collision guardrail
CN220619780U