Traffic guardrail connector based on magnetic adsorption

Abstract

The utility model discloses a traffic guardrail connector based on magnetic adsorption. The traffic guardrail connector comprises a first connecting piece and a second connecting piece. The first connecting piece is fixed on one side of the upright post; the second connecting piece is fixed at the end of the handrail; a permanent magnet part is arranged in the first connecting piece, and a plurality of first probe contacts are mounted around the permanent magnet part; a magnetic attraction part is arranged in the second connecting piece, and a plurality of second probe contacts are distributed around the magnetic attraction part; the permanent magnet component attracts the magnetic attraction component, mechanical connection of the traffic guardrail is achieved through magnetic force, and meanwhile the first probe contact and the second probe contact are in contact connection to achieve electrical connection. According to the traffic guardrail, quick mounting and dismounting can be achieved, axial movement allowance is reserved at the connecting position, radial displacement is avoided, meanwhile, when the traffic guardrail is collided in a traffic accident, the guardrails can be separated from one another in time, the phenomenon that the traffic guardrail is dragged by a vehicle is avoided, and secondary traffic accidents are reduced; the electrical connection is realized by using the probe contact, and the axial error of the connector is increased at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of public transportation facilities, and in particular to a traffic guardrail connector based on magnetic adsorption. Background Art

[0002] Traffic guardrails are a kind of safety facilities used on roads. They have multiple functions such as safety protection, isolation and closure, and traffic induction. Traffic guardrails are composed of columns and guardrail units, and the columns and guardrail units are connected by bolts, welding or tenons. Bolt connections have low installation and disassembly efficiency, and it is necessary to regularly check whether the fasteners are loose to ensure the stability and safety of the guardrail; compared with bolt connections, welding connections are more difficult to repair and replace, requiring the use of advanced tools and skills, and are more expensive. In addition, problems such as cracking and deformation are prone to occur at the welding points, affecting the overall stability of the guardrail; the connection points of the tenon connection are more easily damaged, so the tenons need to be regularly checked and replaced. In addition, unreasonable tenon structure or poor tenon quality will also affect the stability and safety of the guardrail. The above three connection methods are all fixed connection methods. When a vehicle hits one of the units of the traffic guardrail at high speed due to turning or emergency avoidance, the unit will fall to the ground and the rest of the traffic guardrail will also fall down, which is not only likely to cause a secondary traffic accident, but also easy to damage the entire traffic guardrail. The maintenance process is troublesome, time-consuming and has high maintenance costs.

[0003] The prior art adopts a permanent magnet connection with opposite magnetic poles at both ends to solve the above problems by means of magnetic attraction. However, in this connection method, both ends of the column and the guardrail unit are magnetic and have opposite magnetic poles. When a vehicle hits the guardrail, the vehicle itself is mostly composed of metal structures and is easily attracted by the permanent magnets installed on the column or guardrail unit, resulting in the phenomenon of the vehicle dragging the column or guardrail unit, causing more serious secondary traffic accidents. In addition, this structure is only applicable to ordinary traffic guardrails. It is impossible to achieve electrical connection for traffic guardrails that require electrical connection, such as intelligent tidal lane robots.

[0004] Therefore, the present application provides a traffic guardrail connector based on magnetic adsorption, which is not only simple to install and disassemble, but can also be quickly detached when impacted in a traffic accident, and can achieve electrical connection. Summary of the invention

[0005] The purpose of the present application is to provide a traffic guardrail connector based on magnetic adsorption, which effectively prevents the situation where one unit falls down and causes the remaining units to fall down continuously, and avoids the phenomenon of vehicles dragging the guardrail, while achieving electrical connection to meet the connection requirements of various functional traffic guardrails.

[0006] To achieve the above objectives, this application provides the following solutions:

[0007] A traffic guardrail connector based on magnetic adsorption, the connector comprising a first connector and a second connector; a permanent magnetic component is arranged inside the first connector, and a plurality of first probe contacts are installed around the permanent magnetic component; a magnetic attraction component is arranged inside the second connector, and a plurality of second probe contacts are arranged around the magnetic attraction component; the permanent magnetic component attracts the magnetic attraction component, and utilizes magnetic force to mechanically connect the first connector and the second connector, and at the same time, the first probe contact and the second probe contact are in contact and connected to achieve electrical connection.

[0008] A further improvement is that the first connecting piece is a circular structure, including an inner layer and an outer layer, a first countersunk hole is provided in the center of the inner layer, the first countersunk hole is circular, and a first center hole is opened at the bottom; a plurality of first fixing holes are opened at the bottom between the inner layer and the outer layer; a plurality of second fixing holes are symmetrically opened on the surface of the inner layer; a groove is provided on the surface of the outer layer; the second connecting piece has the same structure as the first connecting piece, including an inner layer and an outer layer, a second countersunk hole is provided in the center of the inner layer, and a second center hole is opened at the bottom of the second countersunk hole; a plurality of third fixing holes are opened at the bottom between the inner layer and the outer layer; a plurality of fourth fixing holes are symmetrically opened on the surface of the inner layer; a groove is provided on the surface of the outer layer; the permanent magnetic component is arranged at In the first countersunk hole, the permanent magnetic component is a circular magnetic steel, and the center of the permanent magnetic component is aligned with the center of the first countersunk hole; a fixing hole is arranged at the center of the permanent magnetic component, and the size of the fixing hole is consistent with the size of the first center hole; the second fixing hole and the fourth fixing hole are stepped countersunk holes, and threads are arranged at the bottom, and the first probe contact is arranged in the second fixing hole; the second probe contact is arranged in the fourth fixing hole; the permanent magnetic component is placed in the first connecting piece, and bolts pass through the fixing hole and the first center hole to fix the permanent magnetic component and the first connecting piece to the side of the traffic guardrail column, and the first connecting piece is reinforced and fixed through the second fixing hole.

[0009] A further improvement is that the magnetic component is a carbon steel metal disc with a guide column, and the metal disc is provided with two auxiliary holes for assisting the installation of the magnetic component; one end of the guide column is fixedly connected to the metal disc, and the other end has a thread and is threadedly connected to the second connecting piece.

[0010] A further improvement is that the connector also includes an elastic sealing sleeve, which is arranged in the groove, and the outer surface of the elastic sealing sleeve is flush with the outer surfaces of the first connecting member and the second connecting member; the elastic sealing sleeve can be made of rubber material, which elastically connects the first connecting member and the second connecting member while providing a waterproof sealing effect on the internal structure of the connector; and the middle part of the elastic sealing sleeve is a "wave-shaped" elastic contraction structure, which is used to compensate for the axial fitting error between the first connecting member and the second connecting member.

[0011] A further improvement is that the connector also includes a single-sided fixing piece, which is fixed on the four sides of the traffic guardrail. The magnetic attraction component fixes the second connecting piece to the guardrail through the guide column, and fixes the second connecting piece and the single-sided fixing piece through the second fixing hole.

[0012] A further improvement is that the first connecting member and the second connecting member can be made of plastic material. When the permanent magnetic component attracts the magnetic attraction component, the magnetic attraction component is located in the first connecting member and is magnetically connected to the permanent magnetic component, and can be detached while ensuring the stability of the connection; and multiple first probe contacts are connected one by one with multiple second probe contacts; the stroke of the first probe contact and the second probe contact is S, and the length variable ∆L<2S of the magnetic attraction component.

[0013] Beneficial effects of the technical solution of this application:

[0014] Traditional traffic guardrails are connected by rigid connections such as bolt connections, welding connections, and bayonet connections. Rigid connections are greatly affected by the connection accuracy of the parts structure, and are easily damaged after being hit, increasing maintenance time and costs. The present application adopts a magnetic connection method, and an external connector protects the contact surface, so that the traffic guardrail has axial movement margin while avoiding radial displacement of the traffic guardrail under normal circumstances. When hit, it can quickly detach to buffer and reduce damage to the vehicle and the traffic guardrail.

[0015] The present application realizes electrical connection by using probe contacts while realizing mechanical connection, and the stroke of two sets of probe contacts can compensate for the axial error of the connector during the manufacturing process.

[0016] The present application installs the permanent magnetic component inside the column end connector, which effectively prevents the traffic guardrail from being dragged by the vehicle after the traffic guardrail is detached due to an impact in a traffic accident, thereby avoiding the occurrence of secondary traffic accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 It is a cross-sectional view of the overall structure of a traffic guardrail connector based on magnetic adsorption in the AA direction;

[0019] Figure 2 It is a side view of the overall structure of a traffic guardrail connector based on magnetic adsorption;

[0020] Figure 3 It is a side view of a first connecting piece of a traffic guardrail connector based on magnetic adsorption;

[0021] Figure 4 It is a cross-sectional view of the first connecting piece of a traffic guardrail connector based on magnetic adsorption in the BB direction;

[0022] Figure 5 It is a cross-sectional view of a second connecting piece of a traffic guardrail connector based on magnetic adsorption;

[0023] Figure 6 It is a cross-sectional view of the magnetic suction component of a traffic guardrail connector based on magnetic adsorption in the CC direction;

[0024] Figure 7 It is a side view of a magnetic attraction component of a traffic guardrail connector based on magnetic adsorption;

[0025] Figure 8 This is a rendering of a traffic guardrail connector based on magnetic adsorption installed on a traffic guardrail;

[0026] Fig. 9 This is a partial enlarged picture of the effect of a traffic guardrail connector based on magnetic adsorption installed on a traffic guardrail.

[0027] Reference numerals:

[0028] The first connecting piece; 2. The second connecting piece; 3. The elastic sealing sleeve; 4. The permanent magnetic component; 5. The magnetic attraction component; 6. The first probe contact; 7. The second probe contact; 8. The single-sided fixing piece; 11. The first center hole; 12. The first fixing hole; 13. The second fixing hole; 21. The second center hole; 22. The third fixing hole; 23. The fourth fixing hole; 80. The column; 90. The railing; 51. The auxiliary hole; 52. The connecting end. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0030] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 As shown, a traffic guardrail connector based on magnetic adsorption is shown, and the connector includes a first connector 1 and a second connector 2; a permanent magnetic component 4 is arranged inside the first connector 1, and a plurality of first probe contacts 6 are installed around the permanent magnetic component 4; a magnetic attraction component 5 is arranged inside the second connector 2, and a plurality of second probe contacts 7 are arranged around the magnetic attraction component 5; the permanent magnetic component 4 attracts the magnetic attraction component 5, and utilizes magnetic force to mechanically connect the first connector 1 and the second connector 2, and at the same time, the first probe contact 6 and the second probe contact 7 are in contact and connected to achieve electrical connection.

[0032] In the embodiments of the present application, Figure 3 , Figure 4 As shown, the first connecting member 1 is a circular structure, including an inner layer and an outer layer, a first countersunk hole is provided at the center of the inner layer, the first countersunk hole is circular, and a first center hole 11 is opened at the bottom; a plurality of first fixing holes 12 are opened at the bottom between the inner layer and the outer layer; a plurality of second fixing holes 13 are symmetrically opened on the surface of the inner layer; and a groove is provided on the surface of the outer layer; Figure 5 As shown, the second connecting member 2 has the same structure as the first connecting member 1, including an inner layer and an outer layer, a second countersunk hole is provided at the center of the inner layer, and a second center hole 21 is provided at the bottom of the second countersunk hole; a plurality of third fixing holes 22 are provided at the bottom between the inner layer and the outer layer; a plurality of fourth fixing holes 23 are symmetrically provided on the surface of the inner layer; a groove is provided on the surface of the outer layer; a permanent magnetic component 4 is provided in the first countersunk hole, the permanent magnetic component 4 is a circular permanent magnetic component, the thickness of the permanent magnetic component 4 is less than the width of the first countersunk hole, and the center of the permanent magnetic component 4 is aligned with the center of the first countersunk hole; A fixing hole is provided in the center, and the size of the fixing hole is consistent with that of the first center hole; the second fixing hole 13 and the fourth fixing hole 23 are stepped countersunk holes, and threads are provided at the bottom, and the first probe contact 6 is provided in the second fixing hole 13; the second probe contact 7 is provided in the fourth fixing hole 23; the permanent magnetic component 4 is placed in the first connecting member 1, and bolts pass through the fixing hole and the first center hole 11 to fix the permanent magnetic component 4 and the first connecting member 1 to the side of the traffic guardrail column 80, and the first connecting member 1 is reinforced and fixed through the second fixing hole 13.

[0033] In the embodiments of the present application, Figure 6 , Figure 7 As shown, the magnetic component 5 is a carbon steel metal disc with a guide column. The metal disc is provided with two auxiliary holes 51 for assisting the installation of the magnetic component 5. One end of the guide column is fixedly connected to the metal disc, and the other end is threaded and threadedly connected to the second connecting member 2.

[0034] It is worth mentioning that the connector also includes an elastic sealing sleeve 3, which is arranged in the groove, and the outer surface of the elastic sealing sleeve 3 is flush with the outer surfaces of the first connecting member 1 and the second connecting member 2; the elastic sealing sleeve 3 is made of rubber material, and elastically connects the first connecting member 1 and the second connecting member 2, while having a waterproof and sealing effect on the internal structure of the connector; and the middle part of the elastic sealing sleeve 3 is a "wave-shaped" elastic contraction structure, which is used to compensate for the axial matching error between the first connecting member 1 and the second connecting member 2.

[0035] like Figure 8 As shown, in the embodiment of the present application, the connector also includes a single-sided fixing member 8, which is fixed around the traffic guardrail railing 90. The magnetic attraction component 5 fixes the second connecting member 2 to the railing 90 through the connecting end 52 of the guide column, and fixes the second connecting member 2 and the single-sided fixing member 8 through the second fixing hole 13.

[0036] In an embodiment of the present application, the first connecting member 1 and the second connecting member 2 are made of plastic. When the permanent magnetic component 4 attracts the magnetic component 5, the magnetic component 5 is located in the first connecting member 1 and is magnetically connected to the permanent magnetic component 4, so that the connection is stable and can be detached when impacted; and multiple first probe contacts 6 are connected one by one with multiple second probe contacts 7; the stroke of the first probe contact 6 and the second probe contact 7 is S, and the length variable ∆L of the magnetic component 5 is <2S.

[0037] It is worth noting that in the present application, the fixed height of the first connector 1 on the column 80 is consistent with the center height of the railing 90, and the center points of the upper and lower connectors of a column 80 are on the same straight line in the vertical direction. Figure 8 shown.

[0038] It should be noted that, in the embodiments of the present application, only the connection and composition of two adjacent traffic guardrail units are described, and the connection and composition of the remaining guardrail units are performed in accordance with this description.

[0039] The traffic guardrail connector based on magnetic adsorption provided in the present application only requires docking the structural centers of the two ends of the guardrail. It is simple and convenient to operate, has high assembly efficiency, and reduces the workload of workers. It can also reduce the safety risks of installers and is particularly suitable for special situations where guardrails need to be installed urgently.

[0040] This embodiment only shows a structural layout of a traffic guardrail connector based on magnetic adsorption, but it does not mean that the traffic guardrail connector based on magnetic adsorption provided by this application is only in this form. The specific structural form can be adjusted according to the specific traffic guardrail structure.

[0041] In the description of the present application, it should be understood that the terms "front", "back", "up", "down", "outside", "inside", "horizontal", "top", "bottom", "surface", "bottom layer", "top layer", "upper", "lower", "bottom", "top", "inside", "surface", "center", "right", "middle" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] The embodiments described above are only descriptions of the preferred methods of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by those skilled in the art should all fall within the scope of protection determined by the claims of the present application.

Claims

1. A traffic guardrail connector based on magnetic adsorption, characterized in that: The connector includes a first connector and a second connector; a permanent magnetic component is arranged inside the first connector, and a plurality of first probe contacts are installed around the permanent magnetic component; a magnetic component is arranged inside the second connector, and a plurality of second probe contacts are arranged around the magnetic component; the permanent magnetic component attracts the magnetic component, and uses magnetic force to mechanically connect the first connector and the second connector, and at the same time, the first probe contact and the second probe contact are in contact and connected to achieve electrical connection.

2. The traffic guardrail connector based on magnetic adsorption according to claim 1 is characterized in that: The first connecting member is a circular structure, including an inner layer and an outer layer, a first countersunk hole is provided in the center of the inner layer, the first countersunk hole is circular, and a first center hole is opened at the bottom; a plurality of first fixing holes are opened at the bottom between the inner layer and the outer layer; a plurality of second fixing holes are symmetrically opened on the surface of the inner layer; a groove is provided on the surface of the outer layer; the second connecting member has the same structure as the first connecting member, including an inner layer and an outer layer, a second countersunk hole is provided in the center of the inner layer, and a second center hole is opened at the bottom of the second countersunk hole; a plurality of third fixing holes are opened at the bottom between the inner layer and the outer layer; a plurality of fourth fixing holes are symmetrically opened on the surface of the inner layer; and a groove is provided on the surface of the outer layer.

3. The traffic guardrail connector based on magnetic adsorption according to claim 2 is characterized in that: The permanent magnetic component is arranged in the first countersunk hole. The permanent magnetic component is a circular magnetic steel. The center of the permanent magnetic component is aligned with the center of the first countersunk hole. A fixing hole is arranged at the center of the permanent magnetic component. The size of the fixing hole is consistent with the size of the first center hole.

4. The traffic guardrail connector based on magnetic adsorption according to claim 2 is characterized in that: The magnetic attraction component is a carbon steel metal disc with a guide column. The metal disc is provided with two auxiliary holes for assisting the installation of the magnetic attraction component. One end of the guide column is fixedly connected to the metal disc, and the other end is threaded and threadedly connected to the second connecting piece.

5. The traffic guardrail connector based on magnetic adsorption according to claim 2 is characterized in that: The second fixing hole and the fourth fixing hole are stepped countersunk holes with threads arranged at the bottom. The first probe contact is arranged in the second fixing hole; and the second probe contact is arranged in the fourth fixing hole.

6. The traffic guardrail connector based on magnetic adsorption according to claim 2 is characterized in that: The connector further comprises an elastic sealing sleeve, which is arranged in the groove, and an outer surface of the elastic sealing sleeve is flush with outer surfaces of the first connecting member and the second connecting member.

7. The traffic barrier connector based on magnetic adsorption according to claim 3 is characterized in that: The permanent magnetic component is placed in the first connecting piece, and bolts pass through the fixing hole and the first center hole to fix the permanent magnetic component and the first connecting piece to the side of the traffic guardrail column, and the first connecting piece is reinforced and fixed through the second fixing hole.

8. The traffic barrier connector based on magnetic adsorption according to claim 4 is characterized in that: The connector also includes a single-sided fixing piece, which is fixed around the traffic guardrail. The magnetic attraction component fixes the second connecting piece to the guardrail through the guide column, and fixes the second connecting piece and the single-sided fixing piece through the second fixing hole.

9. The traffic barrier connector based on magnetic adsorption according to claim 6, characterized in that: The middle part of the elastic sealing sleeve is a "wave-shaped" elastic contraction structure, which is used to compensate for the axial matching error between the first connecting member and the second connecting member.

10. The traffic barrier connector based on magnetic adsorption according to claim 1, characterized in that: When the permanent magnetic component attracts the magnetic attraction component, the magnetic attraction component is located in the first connecting member, and the plurality of first probe contacts are connected one by one with the plurality of second probe contacts; the stroke of the first probe contact and the second probe contact is S, and the length variable ∆L of the magnetic attraction component is less than 2S.

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