A U-shaped sleeve for a gate-type guardrail and the gate-type guardrail

Abstract

This utility model relates to the field of highway safety protection, specifically a U-shaped sleeve for a gate-type guardrail and a gate-type guardrail. It includes a longitudinal sleeve for connecting guardrail posts, a transverse sleeve, and a connecting sleeve connecting the longitudinal and transverse sleeves. Two longitudinal sleeves and two connecting sleeves are provided. The transverse sleeve and the two longitudinal sleeves are connected by two connecting sleeves to form a U-shaped sleeve. By dividing the U-shaped sleeve into longitudinal sleeves, transverse sleeves, and connecting sleeves, single-sided installation of the gate-type guardrail is possible. During installation, one side can be assembled first, followed by the other side, thus reducing the impact of construction on traffic. This solves the problem that traditional one-piece molded U-shaped sleeves require simultaneous occupation of the overtaking lanes on both sides of the highway during installation, leading to traffic inconvenience and increased risk of accidents.

Description

Technical Field

[0001] This utility model relates to the field of highway safety protection, specifically a U-shaped sleeve for a gate-type guardrail and a gate-type guardrail. Background Technology

[0002] In the field of highway safety protection, the gate-type guardrail is a double-sided co-constructed guardrail, mainly used in the median strip between two-way highways. It connects the guardrail posts on both sides of the median strip through a U-shaped sleeve to form a whole, and then guardrails are hung on both sides to ultimately form a double-sided co-constructed guardrail. This type of guardrail can better absorb and disperse impact energy through the synergistic effect of the two sides. For example, when a vehicle loses control and collides with the gate-type guardrail in the median strip, not only will the guardrail on the impact side deform to buffer the impact force, but the guardrail on the other side will also receive a certain force through the U-shaped sleeve in the middle, thus sharing the impact force. This effectively reduces the risk of vehicles crossing the median strip and entering the oncoming lane, greatly improving the protection capability for vehicles on two-way highways.

[0003] Currently, the U-shaped sleeves of gate-type guardrails on the market are integrally molded. When installing this type of gate-type guardrail, the U-shaped sleeve needs to be assembled and connected to two guardrail posts simultaneously. However, the guardrail posts on both sides are close to the overtaking lanes on both sides of the highway. Therefore, in order to ensure the safety of construction personnel and vehicles, it is necessary to close and occupy the overtaking lanes on both sides of the highway for construction, which will cause great inconvenience to traffic, seriously affect the normal traffic efficiency of the highway, and increase the risk of traffic congestion and accidents. Therefore, it is necessary to develop a U-shaped sleeve and gate-type guardrail for gate-type guardrails to solve the problems of the existing integrally molded U-shaped sleeves of gate-type guardrails and the need to occupy the overtaking lanes on both sides for construction, resulting in traffic inconvenience and increased risk of accidents. Utility Model Content

[0004] Regarding the aforementioned problem of traffic inconvenience caused by the need to occupy both overtaking lanes on both sides of the highway during the installation of existing gate-type guardrails, the technical solution adopted by this utility model to solve this problem is:

[0005] A U-shaped sleeve for a gate-type guardrail includes a longitudinal sleeve, a transverse sleeve for connecting guardrail posts, and a connecting sleeve for connecting the longitudinal sleeve and the transverse sleeve. Two longitudinal sleeves and two connecting sleeves are provided. The transverse sleeve and the two longitudinal sleeves are connected by the two connecting sleeves to form a U-shaped sleeve.

[0006] Furthermore, the connecting tube is provided with a first connecting part and a second connecting part, the longitudinal sleeve is provided with a first mounting part that cooperates with the first connecting part, and the transverse sleeve is provided with a second mounting part that cooperates with the second connecting part.

[0007] Furthermore, the first connecting part is provided with a first connecting hole, the first mounting part is provided with a second connecting hole corresponding to the first connecting hole, the second connecting part is provided with a third connecting hole, the second mounting part is provided with a fourth connecting hole corresponding to the third connecting hole, and the first connecting hole and the second connecting hole, as well as the third connecting hole and the fourth connecting hole, are connected by fasteners.

[0008] Furthermore, the first connecting hole is elongated and extends horizontally, the second connecting hole is elongated and its extension direction is perpendicular to the extension direction of the first connecting hole, the third connecting hole is elongated and extends horizontally, and the fourth connecting hole is elongated and its extension direction is perpendicular to the extension direction of the third connecting hole.

[0009] Furthermore, the connecting tube is provided with an arc-shaped connecting portion that connects the first connecting portion and the second connecting portion, wherein the extension direction of the first connecting portion and the extension direction of the second connecting portion are perpendicular to each other.

[0010] Furthermore, the inner side of the corner of the connecting sleeve is provided with a first extension that connects to the first connecting part and the second connecting part.

[0011] Furthermore, the cross-sectional shape of the transverse sleeve is U-shaped, the opening of the transverse sleeve faces downward, and the inner side of the transverse sleeve is provided with reinforcing ribs extending along its length.

[0012] Furthermore, the connecting sleeve has a U-shaped cross-section and is provided with mounting cavities for embedding longitudinal and transverse sleeves. The mounting cavities include a first mounting cavity located in the first connecting portion and a second mounting cavity located in the second connecting portion. The depth of the first mounting cavity is greater than or equal to the cross-sectional diameter of the first mounting portion, and the depth of the second mounting cavity is greater than or equal to the maximum cross-sectional length of the second mounting portion.

[0013] The gate-type guardrail includes the aforementioned U-shaped sleeve and guardrail panels disposed on both sides of the U-shaped sleeve.

[0014] Furthermore, the guardrail includes a first guardrail connected to the connecting sleeve and a second guardrail connected to the longitudinal sleeve. The first guardrail is located above the second guardrail and the second guardrail is above it. The thickness of the second guardrail is greater than the thickness of the first guardrail. The cross-sectional shape of the guardrail is corrugated.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model, by dividing the U-shaped sleeve into a longitudinal sleeve, a transverse sleeve, and a connecting sleeve connecting the two, enables the installation of gate-type guardrails on one side. During the installation process, the assembly of one side can be completed first, and then the assembly of the other side can be carried out, thereby reducing the impact of construction on traffic. It solves the problem that the traditional one-piece molded U-shaped sleeve requires the simultaneous occupation of the overtaking lanes on both sides of the highway during installation, which leads to traffic inconvenience and increased risk of accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the U-shaped sleeve of this utility model.

[0018] Figure 2 This is an exploded view of the U-shaped sleeve of this utility model.

[0019] Figure 3 This is a cross-sectional view of the U-shaped sleeve of this utility model.

[0020] Figure 4 This is a schematic diagram of the connection between the transverse sleeve and the connecting sleeve of this utility model.

[0021] Figure 5 This is a schematic diagram of the connection between the longitudinal sleeve and the connecting sleeve of this utility model.

[0022] Figure 6 This is a structural schematic diagram of the gate-type guardrail of this utility model.

[0023] Figure 7 This is a cross-sectional view of the gate-type guardrail of this utility model.

[0024] Figure 8 This is a cross-sectional view of the gate-type guardrail of this utility model.

[0025] Figure 9 This is a schematic diagram of the longitudinal sleeve of this utility model.

[0026] Figure 10 This is a schematic diagram of the connecting sleeve of this utility model.

[0027] Figure 11 This is a schematic diagram of the transverse sleeve of this utility model. Detailed Implementation

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see Figures 1 to 11 The U-shaped sleeve shown is for a gate-type guardrail, including a longitudinal sleeve 1 for connecting the guardrail post, a transverse sleeve 2, and a connecting sleeve 3 for connecting the longitudinal sleeve 1 and the transverse sleeve 2. There are two longitudinal sleeves 1 and two connecting sleeves 3. The transverse sleeve 2 and the two longitudinal sleeves 1 are connected by the two connecting sleeves 3 to form a U-shaped sleeve.

[0032] In this invention, the U-shaped sleeve consists of a longitudinal sleeve, a transverse sleeve, and connecting sleeves. Two longitudinal sleeves and two connecting sleeves are provided. The longitudinal sleeves connect to the guardrail posts, providing a vertical support foundation for the gate-type guardrail. The transverse sleeves are arranged horizontally and connected to the two longitudinal sleeves via two connecting sleeves, forming a U-shaped structure. This split-type structural design changes the traditional one-piece U-shaped sleeve method. Unlike the traditional one-piece U-shaped sleeve method, which requires occupying both overtaking lanes on both sides of the highway for gate-type guardrail installation, the split-type structure of this invention allows construction workers to complete the installation on one side of the highway. During installation, there is no need to close the opposite lane; assembly on one side can be completed first, followed by closing the other lane for assembly on the other side. This greatly reduces interference with normal highway traffic caused by construction, significantly improves road traffic efficiency during construction, reduces the risk of traffic congestion and accidents caused by construction, and also significantly reduces construction difficulty and cost.

[0033] Specifically, the installation of gate-type railings includes the following steps:

[0034] Step S1: Close the overtaking lane on one side of the highway for construction, fix the guardrail post on one side into the preset guardrail post installation hole, then assemble and connect the longitudinal sleeve to the guardrail post, and then connect the connecting sleeve to the longitudinal sleeve to complete the assembly and connection of one side of the U-shaped sleeve.

[0035] Step S2: Connect the guardrail panel on one side to the U-shaped sleeve that has been assembled on the other side, complete the installation of the gate guardrail on one side, and remove the closure of the overtaking lane on that side of the highway.

[0036] Step S3: Close the overtaking lane on the other side of the highway, fix the guardrail post on the other side into the preset guardrail installation hole, then assemble and connect the longitudinal sleeve to the guardrail post, then connect the connecting sleeve to the longitudinal sleeve, and finally assemble and connect the connecting sleeves on both sides through the transverse sleeve, thus completing the overall assembly and connection of the U-shaped sleeve.

[0037] Step S4: Install and connect the guardrail panel to the U-shaped sleeve that has been fully assembled and connected, complete the installation of the entire gate-type guardrail, and lift the closure of the highway overtaking lane.

[0038] As can be seen from the above installation steps of the gate-type guardrail, this utility model, by dividing the U-shaped sleeve into a longitudinal sleeve, a transverse sleeve, and a connecting sleeve connecting the two, can realize the single-sided installation of the gate-type guardrail. During the installation process, one side can be assembled first, and then the other side can be assembled, thereby reducing the impact of construction on traffic. It solves the problem that the traditional one-piece molded U-shaped sleeve requires the simultaneous occupation of the overtaking lanes on both sides of the highway during installation, resulting in traffic inconvenience and increased risk of accidents.

[0039] Furthermore, the connecting sleeve 3 is provided with a first connecting part 31 and a second connecting part 32, the longitudinal sleeve 1 is provided with a first mounting part 11 that cooperates with the first connecting part 31, and the transverse sleeve 2 is provided with a second mounting part 21 that cooperates with the second connecting part 32.

[0040] In this utility model, the connecting sleeve, as a key component connecting the longitudinal sleeve and the transverse sleeve, includes a first connecting part and a second connecting part. The longitudinal sleeve has a first mounting part that mates with the first connecting part. Through the mating connection of the first connecting part and the first mounting part, the longitudinal sleeve and the connecting sleeve are fixedly connected. Similarly, the transverse sleeve has a second mounting part that mates with the second connecting part. Through the mating connection of the second connecting part and the second mounting part, the transverse sleeve and the connecting sleeve are fixedly connected. Therefore, the mating design of the first mounting part and the first connecting part, and the second mounting part and the second connecting part, provides precise positioning for the installation of the longitudinal sleeve, the transverse sleeve, and the connecting sleeve. During the installation process, construction personnel can quickly and accurately assemble the components according to these specific mating structures. Furthermore, the first mounting part and the first connecting part, and the second mounting part and the second connecting part, can be connected and fixed by welding, threaded connection, bolt connection, or other connection methods.

[0041] Furthermore, the first connecting part 31 is provided with a first connecting hole 311, the first mounting part 11 is provided with a second connecting hole 111 corresponding to the first connecting hole 311, the second connecting part 32 is provided with a third connecting hole 321, and the second mounting part 21 is provided with a fourth connecting hole 211 corresponding to the third connecting hole 321. The first connecting hole 311 and the second connecting hole 111, and the third connecting hole 321 and the fourth connecting hole 211 are all connected by fasteners.

[0042] In this utility model, the first connecting part is specifically used to connect with the longitudinal sleeve, and this part is provided with a first connecting hole. The longitudinal sleeve is provided with a second connecting hole corresponding to the first connecting hole. Similarly, the second connecting part is used to connect with the transverse sleeve and is provided with a third connecting hole. The transverse sleeve is provided with a fourth connecting hole corresponding to it. In actual installation, fasteners such as bolts and nuts pass through the corresponding connecting holes to achieve a firm fixed connection between the longitudinal sleeve and the connecting sleeve, and between the transverse sleeve and the connecting sleeve, forming a stable overall structure.

[0043] Based on the connection method using connecting holes and fasteners, during installation, construction personnel only need to accurately align the connecting holes of the corresponding components and then tighten the fasteners to complete the connection operation. The installation process is simple and convenient, greatly improving installation efficiency. In later maintenance or component replacement, it is only necessary to loosen the fasteners to easily disassemble the relevant components, reducing the difficulty and cost of maintenance work and improving maintenance efficiency. In addition, the setting of multiple connecting holes and fasteners can increase the contact area and the number of fastening points between components. When the gate guardrail is subjected to external forces such as vehicle impact, this connection method can evenly distribute the external force to each connection part, effectively avoiding stress concentration in one place and causing connection failure. This ensures that the connection between the longitudinal sleeve, transverse sleeve and connecting sleeve is firm and reliable, improving the stability and safety of the overall structure of the gate guardrail and ensuring that it can perform its protective function normally under various working conditions.

[0044] Specifically, the first connecting hole has multiple holes, the second connecting hole has the same number as the first connecting hole and corresponds one-to-one, and similarly, the third connecting hole has multiple holes, and the fourth connecting hole has the same number as the third connecting hole and corresponds one-to-one. This design increases the contact area and fastening points between the longitudinal sleeve and the connecting sleeve, and between the transverse sleeve and the connecting sleeve. When the gate guardrail is subjected to external forces such as vehicle impact, the multiple sets of connecting holes work together to evenly distribute the impact force to each connection part, avoiding stress concentration at a few connection points that could lead to connection failure. Compared to a single or a small number of connecting holes, this design significantly improves the tensile and shear strength of the connection parts, allowing the U-shaped sleeve to maintain structural stability when subjected to external forces, effectively preventing components from loosening or falling off, and ensuring the overall safety and reliability of the gate guardrail.

[0045] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the number of the first connecting holes is two groups, and the number of the first connecting holes in each group is two and distributed in the vertical direction.

[0046] The two vertically distributed first connecting holes, compared to a single connecting hole, increase the connection points between the longitudinal sleeve and the connecting sleeve, thus increasing the contact area. When the gate-type guardrail is subjected to external forces, the double-hole connection can distribute the stress more evenly, avoiding loosening or damage to the connection due to excessive force on a single connection point. This effectively improves the stability and reliability of the connection between the longitudinal sleeve and the connecting sleeve, ensuring the integrity of the overall structure of the gate-type guardrail under complex stress conditions.

[0047] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the number of the third connecting holes is three and they are respectively disposed on three sides of the second connecting portion.

[0048] Three third connecting holes, each located on one of the three sides of the second connecting part, secure the transverse sleeve and the connecting sleeve from multiple directions, forming a more stable triangular or near-triangular connection structure. When the gate guardrail is subjected to external forces such as vehicle impacts, this multi-angle connection method can more evenly and effectively distribute stress, avoiding loosening or failure of the connection due to localized stress concentration. This significantly improves the stability of the connection between the transverse sleeve and the connecting sleeve, thereby enhancing the structural strength and reliability of the entire gate guardrail and effectively resisting external impacts. Furthermore, because the three third connecting holes constrain the transverse sleeve from different sides, when the transverse sleeve is subjected to external forces, the connecting holes work together to better limit the deformation trend of the transverse sleeve. Whether affected by transverse impact forces or vibrations generated from long-term use, the multi-angle connection structure ensures that the transverse sleeve maintains a stable shape and position, reducing the possibility of deformation and ensuring that the gate guardrail maintains good protective performance under various working conditions, extending its service life.

[0049] Furthermore, the first connecting hole 311 is elongated and extends horizontally, the second connecting hole 111 is elongated and its extension direction is perpendicular to the extension direction of the first connecting hole 311, the third connecting hole 321 is elongated and extends horizontally, and the fourth connecting hole 211 is elongated and its extension direction is perpendicular to the extension direction of the third connecting hole 321.

[0050] In this invention, the first connecting hole is elongated and extends horizontally, and the second connecting hole is also elongated, but its extension direction is perpendicular to the first connecting hole. This design allows for a certain amount of adjustment space in both the horizontal and vertical directions when connecting the longitudinal sleeve and the first connecting part of the connecting sleeve.

[0051] Before installing guardrail posts, U-shaped sleeves need to be designed and manufactured according to the dimensions of the median strip of the highway. However, during construction, because the U-shaped sleeves are one-piece structures, the assembly gap between them and the guardrail posts is small, requiring high precision in the installation of the guardrail posts. However, during construction, the drilling of installation holes and the installation of guardrail posts are done manually. Especially during highway construction, it is impossible to effectively control errors such as the spacing between two guardrail posts, the verticality of the guardrail posts, and the parallelism between two guardrail posts. Due to the design inclination of the road surface, when the errors in the spacing, verticality, and parallelism of two guardrail posts are large, the U-shaped sleeves cannot be effectively assembled and connected to the guardrail posts, making the actual construction extremely difficult.

[0052] Therefore, the design of the first connecting hole extending horizontally in a long strip and the second connecting hole extending vertically in a long strip allows workers to fine-tune the relative positions of the longitudinal sleeve and the connecting sleeve within a certain range. Specifically, when the installation of the guardrail post is tilted, the first connecting hole extending horizontally in a long strip can overcome the horizontal error caused by the tilt of the guardrail post, allowing the first and second connecting holes to still allow fasteners to pass through, thus achieving the assembly connection of the connecting sleeve and the longitudinal sleeve. This avoids the problem of the connecting sleeve and the longitudinal sleeve being unable to connect due to construction errors, reducing the requirements and difficulty of construction accuracy, and effectively improving the installation convenience and reliability of the gate-type guardrail. Similarly, when there is a height error in the installation of two guardrail posts, the second connecting hole extending vertically in a long strip can overcome the height error of the two guardrail posts in a vertical direction, allowing fasteners to still pass through the first and second connecting holes, thus achieving the connection of the connecting sleeve and the first connecting part, effectively reducing the installation accuracy requirements of the gate-type guardrail.

[0053] Furthermore, the elongated horizontal design of the third connecting hole allows workers to fine-tune the relative positions of the transverse sleeve and the connecting sleeve within a certain range. When there is an error in the spacing between the two guardrail posts, the elongated horizontal design of the third connecting hole can overcome the spacing error by adjusting the relative positions of the two posts in the horizontal direction. This allows the fasteners to pass through the third and fourth connecting holes even when the spacing between the two guardrail posts is small or large, thus connecting the connecting sleeve to the second connecting part. This reduces the installation accuracy requirements and difficulty of the gate-type guardrail, effectively improving the convenience and practicality of installation. Specifically, during the installation of the transverse sleeve, construction workers can flexibly adjust the relative positions of the transverse sleeve and the connecting sleeve in the horizontal and vertical directions using the elongated and mutually perpendicular connecting holes, allowing the fasteners to pass through the corresponding connecting holes to connect the two components. This improves the convenience and flexibility of installation, reduces the requirements for drilling accuracy of the guardrail posts, and effectively reduces the construction difficulty.

[0054] In addition, when the gate-type guardrail is subjected to lateral impact force, the mutually perpendicular elongated connecting holes can make the impact force on the lateral sleeve more evenly transmitted to the connecting sleeve and the entire U-shaped sleeve structure. By reasonably dispersing the stress, it avoids damage to the connection part between the lateral sleeve and the connecting sleeve due to excessive local stress, thus enhancing the lateral protection performance of the gate-type guardrail and improving its ability to resist lateral vehicle impact.

[0055] In addition, when the gate-type guardrail is subjected to external force, these mutually perpendicular elongated connecting holes can make the stress transfer between the longitudinal sleeve and the connecting sleeve more uniform. Compared with ordinary circular connecting holes, it avoids excessive stress concentration in a certain direction, so that the connection part can more reasonably bear and disperse external force, enhance the fatigue resistance and structural stability of the connection part, and effectively extend the service life of the U-shaped sleeve and the safety and reliability of the gate-type guardrail.

[0056] Furthermore, the connecting sleeve 3 is provided with an arc-shaped connecting part 33 connecting the first connecting part 31 and the second connecting part 32, wherein the extension direction of the first connecting part 31 and the extension direction of the second connecting part 32 are perpendicular to each other.

[0057] In this invention, the connecting sleeve is provided with an arc-shaped connecting portion that connects the first connecting portion and the second connecting portion. The extension directions of the first connecting portion and the second connecting portion are perpendicular to each other. The arc-shaped connecting portion smoothly connects the first connecting portion and the second connecting portion, making the overall structure of the connecting sleeve more fluid and natural. In addition, when a vehicle impacts the gate-type guardrail, the arc-shaped connecting portion can change the stress transmission path, allowing the stress to gradually diffuse along the arc direction, avoiding stress concentration at the corners of the connecting sleeve. This smooth transition design effectively reduces the risk of damage to the connecting sleeve caused by stress concentration, enabling the connecting sleeve to distribute stress more evenly when under force, improving its structural strength and durability, and ensuring the stability and reliability of the overall structure of the gate-type guardrail.

[0058] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the connecting sleeve is integrally formed by a stretching process, which means that the first connecting part, the second connecting part, and the arc-shaped connecting part are all integrally formed by a stretching process. There are no splicing gaps or welds between the first connecting part and the arc-shaped connecting part, and between the arc-shaped connecting part and the second connecting part, thus avoiding the problems of stress concentration and structural weakness caused by splicing or welding. The structure of the connecting sleeve is more continuous and complete, and when subjected to external forces such as vehicle impact, it can transmit and disperse stress more evenly, enhance the strength and stability of the gate-type guardrail connection parts, and improve the impact resistance and reliability of the entire gate-type guardrail.

[0059] Furthermore, the inner side of the corner of the connecting sleeve 3 is provided with a first extension that connects to the first connecting part 31 and the second connecting part 32.

[0060] In this invention, the inner side of the corner of the connecting sleeve is provided with a first extension that connects to the first connecting part and the second connecting part. The first extension extends out from the inner side of the corner, increasing the structural thickness and connection area of ​​the connecting sleeve at the corner, thereby strengthening the structural strength at the corner. Specifically, when the gate-type guardrail is subjected to external impact, the corner is often a critical part of stress concentration, which is prone to horizontal deformation or damage. By adding the first extension at the corner of the connecting sleeve, the structural thickness and connection area are increased, which can effectively disperse the stress at the corner, improve the ability of the connecting sleeve to resist external deformation and damage, and ensure the integrity and stability of the overall structure of the U-shaped sleeve.

[0061] Furthermore, the cross-sectional shape of the transverse sleeve 2 is U-shaped, the opening of the transverse sleeve 2 faces downward, and the inner side of the transverse sleeve 2 is provided with reinforcing ribs 22 extending along its length direction.

[0062] In this invention, the cross-sectional shape of the transverse sleeve is designed as a U-shape with the opening facing downwards. Reinforcing ribs extending along the length of the transverse sleeve are provided on its inner side. The U-shaped cross-sectional structure provides a basic load-bearing frame for the transverse sleeve. Because the U-shaped cross-section has good structural strength and load-bearing capacity, it can resist deformation caused by external forces to a certain extent. The reinforcing ribs extending along the length of the inner side further enhance the structural strength and rigidity of the transverse sleeve, enabling it to better maintain its shape and structural integrity when subjected to external forces such as vehicle impacts, effectively resisting bending and deformation, and improving the stability and load-bearing capacity of the entire U-shaped sleeve and gate-type guardrail. Furthermore, the downward-facing design of the transverse sleeve prevents the accumulation of debris such as leaves, garbage, and rainwater inside the sleeve. In the highway environment, debris accumulation can easily lead to corrosion and other damage to the transverse sleeve, increasing maintenance costs and frequency. Therefore, the downward-facing design of the transverse sleeve effectively avoids debris accumulation, reduces the risk of damage caused by debris, lowers maintenance workload and costs, and extends the service life of the transverse sleeve and gate-type guardrail.

[0063] Furthermore, the connecting sleeve 3 has a U-shaped cross-section and is provided with an installation cavity 34 for the longitudinal sleeve 1 and the transverse sleeve 2 to be embedded. The installation cavity 34 includes a first installation cavity 341 located in the first connecting part 31 and a second installation cavity 342 located in the second connecting part 32. The depth of the first installation cavity 341 is greater than or equal to the cross-sectional diameter of the first installation part 11, and the depth of the second installation cavity 342 is greater than or equal to the maximum cross-sectional length of the second installation part 21.

[0064] In this invention, the connecting sleeve also has a U-shaped cross-section and is provided with mounting cavities specifically for embedding the longitudinal and transverse sleeves. The mounting cavities include a first mounting cavity located at the first connecting portion and a second mounting cavity located at the second connecting portion. The depth of the first mounting cavity is designed to be greater than or equal to the cross-sectional diameter of the first mounting portion, and the depth of the second mounting cavity is greater than or equal to the maximum cross-sectional strength of the second mounting portion, ensuring that the first and second mounting portions can be securely embedded within the mounting cavities. In summary, the U-shaped cross-section mounting cavity provides a precise installation and positioning structure for the longitudinal and transverse sleeves. During installation, construction personnel can accurately embed the longitudinal and transverse sleeves into their corresponding... The depth design of the first and second mounting cavities within the mounting cavity ensures tightness and stability of the embedding, reduces installation errors, and allows for close cooperation between components to form a stable and reliable overall structure. This effectively improves the installation quality and stability of the gate-type guardrail. In addition, the mounting cavity allows the longitudinal sleeve, transverse sleeve, and connecting sleeve to fit tightly together, increasing the contact area between components. When the gate-type guardrail is subjected to external forces, this close connection method can more effectively transfer and disperse stress, preventing damage to the connection points due to uneven stress. By optimizing stress distribution, the reliability and durability of the U-shaped sleeve are enhanced, improving the protective performance and service life of the gate-type guardrail during long-term use.

[0065] The gate-type guardrail includes the aforementioned U-shaped sleeve and guardrail panels 4 disposed on both sides of the U-shaped sleeve.

[0066] In this utility model, the gate-type guardrail adopts the U-shaped sleeve mentioned above, which enables the gate-type guardrail to be installed on one side, reducing traffic interference. Furthermore, the design of the elongated connecting hole reduces the assembly precision requirements of the gate-type guardrail and improves the convenience of installation.

[0067] Furthermore, the guardrail 4 includes a first guardrail 41 connected to the connecting sleeve 3 and a second guardrail 42 connected to the longitudinal sleeve 1. The first guardrail 41 is located above the second guardrail 42 and the second guardrail 42 is above it. The thickness of the second guardrail 42 is greater than the thickness of the first guardrail 41. The cross-sectional shape of the guardrail 4 is corrugated.

[0068] In this invention, the guardrail is divided into a first guardrail connected to a connecting sleeve and a second guardrail connected to a longitudinal sleeve. The first guardrail is located above the second guardrail, and the thickness of the second guardrail is greater than that of the first guardrail. Since the lower part of the guardrail usually experiences a larger impact force when a vehicle collides with it, the thicker design of the second guardrail allows it to better withstand the larger impact force from the lower part, effectively absorbing and dispersing the impact energy and preventing the lower part of the vehicle from breaking through the guardrail. The upper part experiences a relatively smaller impact force compared to the lower part. Based on the different stresses of different parts of the guardrail, different thicknesses are used. While ensuring the protective performance of the gate-type guardrail, thicker material is used for the lower second guardrail, which experiences greater stress, and thinner material is used for the upper first guardrail, which experiences relatively less stress. This avoids unnecessary material waste and effectively controls production costs.

[0069] Furthermore, the guardrail panel has a corrugated cross-sectional shape. When a vehicle collides with the gate guardrail, the corrugated guardrail panel can deform significantly due to its corrugated structure. During deformation, the guardrail panel absorbs a large amount of vehicle kinetic energy, effectively buffering the impact force, reducing vehicle speed, and minimizing damage caused by the collision. It also significantly reduces injury to occupants. By efficiently absorbing impact energy, it effectively prevents vehicles from crossing the median and entering the oncoming lane, greatly improving the gate guardrail's protective capability for vehicles on two-way highways. In addition, compared to traditional flat guardrail panels, the corrugated design makes the gate guardrail more aesthetically pleasing and layered. At the same time, during high-speed vehicle travel, the corrugated guardrail panel can optimize airflow, reduce air resistance and turbulence, reduce the force of wind on the gate guardrail, reduce vibration and wear caused by wind load, help extend the service life of the gate guardrail, and improve its stability in high-speed airflow environments.

[0070] Furthermore, the first guardrail plate 41 is provided with a fifth connecting hole 411, the connecting sleeve 3 is provided with a sixth connecting hole 35 on the side near the guardrail plate 4, and the longitudinal sleeve 1 is provided with a seventh connecting hole 12 penetrating both sides therethrough. Fasteners pass through the fifth connecting hole 411, the sixth connecting hole 35 and the seventh connecting hole 12 to make the first guardrail plate 41 securely connected to the connecting sleeve 3 and the longitudinal sleeve 1. Similarly, the second guardrail plate 42 is provided with an eighth connecting hole 421, and the longitudinal sleeve 1 is provided with a ninth connecting hole 13 penetrating both sides therethrough. Fasteners pass through the eighth connecting hole 421 and the ninth connecting hole 13 to securely connect the second guardrail plate 42 to the longitudinal sleeve 1.

[0071] Specifically, the fifth connecting hole 411, the sixth connecting hole 35, the seventh connecting hole 12, the eighth connecting hole 421, and the ninth connecting hole 13 are all elongated. The fifth connecting hole 411, the seventh connecting hole 12, and the eighth connecting hole 421 extend horizontally, while the sixth connecting hole 35 and the ninth connecting hole 13 extend vertically. This design means that the length direction of the fifth connecting hole 411 is perpendicular to the length direction of the sixth connecting hole 35, and the length direction of the eighth connecting hole 421 is perpendicular to the length direction of the ninth connecting hole 13.

[0072] Since the fifth connecting hole 411 and the seventh connecting hole 12 are both elongated and horizontally oriented, the relative positions of the first guardrail plate 41 and the U-shaped sleeve can be finely adjusted in the horizontal direction when they are connected. This allows the fasteners to pass through the fifth connecting hole 411 and the seventh connecting hole 12, thus connecting the first guardrail plate 41 and the U-shaped sleeve. This avoids the problem of misalignment of the connecting holes due to differences in processing dimensions and reduces the construction difficulty of the gate-type guardrail. Similarly, since the eighth connecting hole 421 is set in the horizontal direction and the ninth connecting hole 13 is set in the vertical direction, the relative positions of the second guardrail plate 42 and the U-shaped sleeve can be finely adjusted in both the vertical and horizontal directions. This also avoids the problem of misalignment of the connecting holes due to differences in processing dimensions and effectively reduces the assembly precision requirements and construction difficulty of the gate-type guardrail.

[0073] Example 1

[0074] A U-shaped sleeve for a gate-type guardrail includes a longitudinal sleeve 1 for connecting guardrail posts, a transverse sleeve 2, and a connecting sleeve 3 for connecting the longitudinal sleeve 1 and the transverse sleeve 2. There are two longitudinal sleeves 1 and two connecting sleeves 3. The transverse sleeve 2 and the two longitudinal sleeves 1 are connected by the two connecting sleeves 3 to form a U-shaped sleeve.

[0075] Example 2

[0076] Example 2, based on Example 1, also has the following implementation method:

[0077] The connecting sleeve 3 is provided with a first connecting part 31 and a second connecting part 32. The longitudinal sleeve 1 is provided with a first mounting part 11 that cooperates with the first connecting part 31. The transverse sleeve 2 is provided with a second mounting part 21 that cooperates with the second connecting part 32.

[0078] Example 3

[0079] Example 3, based on Example 2, also has the following implementation method:

[0080] The first connecting part 31 is provided with a first connecting hole 311, the first mounting part 11 is provided with a second connecting hole 111 corresponding to the first connecting hole 311, the second connecting part 32 is provided with a third connecting hole 321, and the second mounting part 21 is provided with a fourth connecting hole 211 corresponding to the third connecting hole 321. The first connecting hole 311 and the second connecting hole 111, and the third connecting hole 321 and the fourth connecting hole 211 are all connected by fasteners.

[0081] Example 4

[0082] Example 4, based on Example 3, also has the following implementation method:

[0083] The first connecting hole 311 is elongated and extends horizontally, the second connecting hole 111 is elongated and extends vertically, the third connecting hole 321 is elongated and extends horizontally, and the fourth connecting hole 211 is elongated and its extension direction is perpendicular to the extension direction of the third connecting hole 321.

[0084] Example 5

[0085] Example 5, based on Example 2, also has the following implementation method:

[0086] The connecting sleeve 3 is provided with an arc-shaped connecting part 33 that connects the first connecting part 31 and the second connecting part 32. The extension direction of the first connecting part 31 and the extension direction of the second connecting part 32 are perpendicular to each other.

[0087] Example 6

[0088] Example 6, based on Example 2, also has the following implementation method:

[0089] The inner side of the corner of the connecting sleeve 3 is provided with a first extension 35 that connects to the first connecting part 31 and the second connecting part 32.

[0090] Example 7

[0091] Example 7, based on Example 2, also has the following implementation method:

[0092] The cross-sectional shape of the transverse sleeve 2 is U-shaped, the opening of the transverse sleeve 2 faces downward, and the inner side of the transverse sleeve 2 is provided with reinforcing ribs 22 extending along its length.

[0093] Example 8

[0094] Example 8, based on Example 2, also has the following implementation method:

[0095] The connecting sleeve 3 has a U-shaped cross-section and is provided with an installation cavity 34 for the longitudinal sleeve 1 and the transverse sleeve 2 to be inserted. The installation cavity 34 includes a first installation cavity 341 located in the first connecting part 31 and a second installation cavity 342 located in the second connecting part 32. The depth of the first installation cavity 341 is greater than the cross-sectional diameter of the first installation part 11, and the depth of the second installation cavity 342 is greater than the maximum cross-sectional length of the second installation part 21.

[0096] Example 9

[0097] The gate-type guardrail includes the aforementioned U-shaped sleeve and guardrail panels 4 disposed on both sides of the U-shaped sleeve.

[0098] Example 10

[0099] Example 10, based on Example 9, also has the following implementation method:

[0100] The guardrail 4 includes a first guardrail 41 connected to the connecting sleeve 3 and a second guardrail 42 connected to the longitudinal sleeve 1. The first guardrail 41 is located above the second guardrail 42 and the second guardrail 42 is above it. The thickness of the second guardrail 42 is greater than the thickness of the first guardrail 41. The cross-sectional shape of the guardrail 4 is corrugated.

[0101] Example 11

[0102] Based on Example 2, Example 11 also has the following implementation method:

[0103] The number of the first connecting holes is two groups, and the number of the first connecting holes in each group is two and they are distributed in the vertical direction.

[0104] Example 12

[0105] Example 12, based on Example 2, also has the following implementation method:

[0106] The number of the third connecting holes is three, and they are respectively located on the three sides of the second connecting part.

[0107] Example 13

[0108] Example 13, based on Example 8, also has the following implementation method:

[0109] The first guardrail plate 41 is provided with a fifth connecting hole 411, the connecting sleeve 3 is provided with a sixth connecting hole 35 on the side near the guardrail plate 4, and the longitudinal sleeve 1 is provided with a seventh connecting hole 12 penetrating both sides therethrough. Fasteners pass through the fifth connecting hole 411, the sixth connecting hole 35 and the seventh connecting hole 12 to make the first guardrail plate 41 securely connected to the connecting sleeve 3 and the longitudinal sleeve 1. The second guardrail plate 42 is provided with an eighth connecting hole 421, and the longitudinal sleeve 1 is provided with a ninth connecting hole 13 penetrating both sides therethrough. Fasteners pass through the eighth connecting hole 421 and the ninth connecting hole 13 to securely connect the second guardrail plate 42 to the longitudinal sleeve 1.

[0110] Example 14

[0111] Example 14, based on Example 10, also has the following implementation method:

[0112] The thickness of the first guardrail plate 41 is 3mm, and the thickness of the second guardrail plate 42 is 4mm.

[0113] Example 15

[0114] The difference between Embodiment 15 and Embodiment 8 is that the depth of the first mounting cavity 341 is equal to the cross-sectional diameter of the first mounting part 11, and the depth of the second mounting cavity 342 is equal to the maximum cross-sectional length of the second mounting part 21.

[0115] Example 16

[0116] Based on Example 2, Example 16 also has the following implementation method:

[0117] The first mounting part and the first connecting part, and the second mounting part and the second connecting part are connected and fixed by welding.

[0118] Example 17

[0119] Example 17, based on Example 2, also has the following implementation method:

[0120] The first mounting part and the first connecting part, and the second mounting part and the second connecting part are connected and fixed by threaded connection.

[0121] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A U-shaped sleeve for gate-type guardrails, characterized in that, It includes a longitudinal sleeve (1) for connecting guardrail posts, a transverse sleeve (2), and a connecting sleeve (3) for connecting the longitudinal sleeve (1) and the transverse sleeve (2). There are two longitudinal sleeves (1) and two connecting sleeves (3). The transverse sleeve (2) and the two longitudinal sleeves (1) are connected by the two connecting sleeves (3) to form a U-shaped sleeve.

2. The U-shaped sleeve for gate-type guardrails according to claim 1, characterized in that, The connecting sleeve (3) is provided with a first connecting part (31) and a second connecting part (32). The longitudinal sleeve (1) is provided with a first mounting part (11) that cooperates with the first connecting part (31). The transverse sleeve (2) is provided with a second mounting part (21) that cooperates with the second connecting part (32).

3. The U-shaped sleeve for gate-type guardrails according to claim 2, characterized in that, The first connecting part (31) is provided with a first connecting hole (311), the first mounting part (11) is provided with a second connecting hole (111) corresponding to the first connecting hole (311), the second connecting part (32) is provided with a third connecting hole (321), and the second mounting part (21) is provided with a fourth connecting hole (211) corresponding to the third connecting hole (321). The first connecting hole (311) and the second connecting hole (111), and the third connecting hole (321) and the fourth connecting hole (211) are all connected by fasteners.

4. The U-shaped sleeve for gate-type guardrails according to claim 3, characterized in that, The first connecting hole (311) is elongated and extends horizontally, the second connecting hole (111) is elongated and extends vertically, the third connecting hole (321) is elongated and extends horizontally, and the fourth connecting hole (211) is elongated and its extension direction is perpendicular to the extension direction of the third connecting hole (321).

5. The U-shaped sleeve for gate-type railings according to claim 2, characterized in that, The connecting sleeve (3) is provided with an arc-shaped connecting part (33) connecting the first connecting part (31) and the second connecting part (32), and the extension direction of the first connecting part (31) and the extension direction of the second connecting part (32) are perpendicular to each other.

6. The U-shaped sleeve for gate-type guardrails according to claim 2, characterized in that, The inner corner of the connecting sleeve (3) is provided with a first extension (35) that connects to the first connecting part (31) and the second connecting part (32).

7. The U-shaped sleeve for gate-type railings according to claim 2, characterized in that, The cross-sectional shape of the transverse sleeve (2) is U-shaped, the opening of the transverse sleeve (2) faces downward, and the inner side of the transverse sleeve (2) is provided with reinforcing ribs (22) extending along its length.

8. The U-shaped sleeve for gate-type guardrails according to claim 2, characterized in that, The connecting sleeve (3) has a U-shaped cross-section and is provided with an installation cavity (34) for embedding the longitudinal sleeve (1) and the transverse sleeve (2). The installation cavity (34) includes a first installation cavity (341) located in the first connecting part (31) and a second installation cavity (342) located in the second connecting part (32). The depth of the first installation cavity (341) is greater than or equal to the cross-sectional diameter of the first installation part (11), and the depth of the second installation cavity (342) is greater than or equal to the maximum cross-sectional length of the second installation part (21).

9. A gate-type railing, characterized in that, Includes the U-shaped sleeve as described in any one of claims 1-8, and guardrails (4) disposed on both sides of the U-shaped sleeve.

10. The gate-type guardrail according to claim 9, characterized in that, The guardrail (4) includes a first guardrail (41) connected to the connecting sleeve (3) and a second guardrail (42) connected to the longitudinal sleeve (1). The first guardrail (41) is located on the upper side of the second guardrail (42) and the thickness of the second guardrail (42) is greater than the thickness of the first guardrail (41). The cross-sectional shape of the guardrail (4) is corrugated.

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