Adjustable expressway isolation net
By using the upper and lower mesh bodies in the highway isolation net, combining the sliding adjustment of the metal cylinder and the alloy rod, and setting an epoxy resin layer on the outside of the alloy rod, the corrosion and lubrication cost problems of the existing isolation net when adjusting the height is solved, achieving the effect of highly flexible adjustment and cost reduction.
Patent Information
- Application Number
- CN202421674745.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-16
AI Technical Summary
When adjusting the height of the existing highway isolation net, the worm gear and worm gear are susceptible to wind and rain, causing iron chips to stagnate the transmission gap, and frequently apply lubricating oil, which increases the lubrication cost.
An adjustable highway isolation net is designed, which adopts the upper and lower mesh body to arrange side by side, and the height adjustment is achieved through the sliding of the metal cylinder and the alloy rod, and an epoxy resin layer is installed on the outside of the alloy rod to reduce corrosion and lubrication needs.
It realizes flexible adjustment of the height of the isolation net, reduces the rust effect at the lifting and sliding, reduces the lubrication cost, and improves the service life of the isolation net.
Smart Images
Figure CN222878590U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of road safety protection, and specifically relates to an adjustable highway isolation net. Background Art
[0002] The highway isolation net divides the traffic flow into two independent directions, preventing vehicles from different directions from interfering with each other and reducing the risk of traffic accidents. This isolation net can prevent vehicles from crossing the line, pedestrians from crossing, animals from escaping, etc., protecting the safety of pedestrians and vehicles.
[0003] Traditional highway isolation nets include cement stone piers at the bottom and metal mesh at the top. In order to facilitate installation, current highway isolation nets are generally made into split types and assembled together during installation. In other words, manufacturers generally produce cement stone piers and metal mesh separately.
[0004] When installing isolation nets on existing highways, metal meshes of different heights are selected for different sections, or a worm gear is used to adjust the height. The worm gear is directly exposed to the outside world and is eroded by wind and rain, which will cause iron filings to jam the transmission gap. This requires workers to regularly apply lubricating oil to each adjustment point, increasing the lubrication cost during the height adjustment process. For this reason, we propose an adjustable highway isolation net. Utility Model Content
[0005] The purpose of the utility model is to provide an adjustable highway isolation net with adjustable height, which can reduce the rust effect of the lifting and sliding parts and does not need to apply lubricating oil frequently, so as to reduce the lubrication cost during the height adjustment process of the isolation net.
[0006] The technical solutions adopted in this utility are as follows:
[0007] An adjustable highway isolation net comprises an upper net body and a lower net body arranged side by side with the upper net body, two metal cylinders parallel to each other are fixed on both sides of the upper net body, two alloy rods parallel to each other are fixed on both sides of the lower net body, the two metal cylinders are opened downward, the upper ends of the two alloy rods are inserted into the openings of the two metal cylinders along the axial direction, and epoxy resin layers are arranged on the outer sides of the two alloy rods. When installing the isolation net, a plurality of lower net bodies are horizontally connected end to end on a cement pier, and then the metal cylinders are slid along the alloy rods to lift the upper net body upward to a specified height, so that the upper net body and the lower net body form an isolation net with adjustable height. After adjustment, iron wire or cable ties are used to bundle the upper net body and the lower net body at multiple points, and steel pipes are used to reinforce the connection between adjacent isolation nets. At the same time, since the metal cylinders are opened downward and rainwater will not be poured in, and the alloy rods are wrapped with epoxy resin layers, the rust effect at the lifting and sliding parts can be reduced, and there is no need to frequently apply lubricating oil, so as to reduce the lubrication cost during the height adjustment of the isolation net.
[0008] The two alloy rods are both axially fixed with piston rods at one end located inside the metal cylinder. The diameter of the piston rod is larger than the diameter of the opening of the metal cylinder. The piston rod can stick to the inner wall of the metal cylinder and straighten the alloy rod to slide axially along the metal cylinder. Even if the alloy rod drops, the piston rod can be limited by the opening of the metal cylinder and will not fall off the metal cylinder.
[0009] Two reinforcements are fixed on the outside of the lower net body, and the upper surfaces of the two reinforcements are respectively fixedly connected to the lower ends of the two alloy rods. The reinforcements are used to reinforce the connection between the lower net body and the alloy rods, thereby improving the stability of the connection and reducing the occurrence of the alloy rods being pulled apart during the process of supporting the metal tube.
[0010] Ceramic rings are fixed at the openings of the two metal cylinders. The two ceramic rings are respectively sleeved on the outside of the two epoxy resin layers. The wear-resistant ceramic rings are used to support the alloy rod at the openings of the metal cylinder to avoid direct friction between the alloy rod and the openings of the metal cylinder. This is beneficial to maintaining the diameter of the opening of the metal cylinder within an appropriate range and continuously limiting the piston column.
[0011] The inner walls of the two metal cylinders are bonded with an annular polyurethane liner, which is respectively sleeved on the outside of the two epoxy resin layers. The polyurethane liner is used to block dust entering from the opening of the metal cylinder, creating a relatively sealed environment for the piston column.
[0012] A plurality of support rods are fixed at intervals on the lower surface of the lower net body. The support rods are inserted downward into the reserved holes on the cement pier to support the lower net body at multiple points, so that the lower net body can stand stably on the cement pier.
[0013] The technical effects achieved by this utility model are:
[0014] The utility model discloses an adjustable highway isolation net. When installing the isolation net, a plurality of lower net bodies are horizontally connected end to end on a cement pier, and then a metal cylinder is slid along an alloy rod to lift the upper net body upward to a specified height, so that the upper net body and the lower net body form an isolation net with adjustable height. After adjustment, iron wire or cable ties are used to bundle the upper net body and the lower net body at multiple points, and steel pipes are used to reinforce the connection between adjacent isolation nets. At the same time, since the opening of the metal cylinder faces downward, rainwater will not be poured in, and the alloy rod is wrapped with an epoxy resin layer, the rust effect of the lifting and sliding part can be reduced, and there is no need to frequently apply lubricating oil, so as to reduce the lubrication cost in the process of adjusting the height of the isolation net. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a main view of an adjustable highway isolation net of the present invention;
[0016] Figure 2 It is a rear view of the lower net body of the utility model;
[0017] Figure 3It is a cross-sectional view of the metal cylinder of the present utility model;
[0018] Figure 4 It is the front view of the alloy rod of the present utility model;
[0019] Figure 5 This is a practical Figure 3 Enlarged view of point A in the middle.
[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0021] 1. Upper net body; 2. Lower net body; 3. Metal cylinder; 4. Alloy rod; 5. Epoxy resin layer; 6. Piston rod; 7. Reinforcement; 8. Ceramic ring; 9. Polyurethane lining; 10. Support rod. DETAILED DESCRIPTION
[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.
[0023] like Figure 1-5 As shown, an adjustable highway isolation net includes an upper net body 1 and a lower net body 2 arranged side by side with the upper net body 1. The upper net body 1 and the lower net body 2 are both made of porous metal mesh and are pre-cut into blocks of specified sizes in a factory. Two metal cylinders 3 parallel to each other are fixed on both sides of the upper net body 1. The upper ends of the two metal cylinders 3 are respectively fixedly connected to both sides of the upper edge of the upper net body 1. Two alloy rods 4 parallel to each other are fixed on both sides of the lower net body 2. The lower ends of the two alloy rods 4 are respectively fixedly connected to both sides of the lower edge of the lower net body 2. The two metal cylinders 3 are open downwards. The upper ends of the two alloy rods 4 are respectively inserted into the openings of the two metal cylinders 3 along the axial direction. The outer sides of the two alloy rods 4 are provided with epoxy resin layers 5. The traffic flow needs to be divided into two independent directions. A cement pier is pre-cast at the center line of the road. When installing the isolation net, several lower mesh bodies 2 are horizontally connected end to end on the cement pier, and then the metal cylinder 3 is slid along the alloy rod 4 to lift the upper mesh body 1 upward to a specified height, so that the upper mesh body 1 and the lower mesh body 2 form a height-adjustable isolation net. After adjustment, wire or cable ties are used to bundle the upper mesh body 1 and the lower mesh body 2 at multiple points, and steel pipes are used to reinforce the connections between adjacent isolation nets. At the same time, since the metal cylinder 3 opens downward and rainwater will not be poured in, and the alloy rod 4 is wrapped with an epoxy resin layer 5, the rust effect at the lifting and sliding parts can be reduced, and there is no need to frequently apply lubricating oil, so as to reduce the lubrication cost during the height adjustment of the isolation net.
[0024] In this way, the metal cylinder 3 and the alloy rod 4 are respectively located on both sides of the isolation net. While straightening it, it is also convenient for the isolation net to bend to a certain degree in the middle. It is suitable for setting up in the turning section of the highway. By adjusting the height, it can prevent pedestrians from climbing over, etc., and contribute positively to maintaining the traffic order of the highway.
[0025] like Figure 3 , Figure 4 and Figure 5 As shown, one end of the two alloy rods 4 located inside the metal cylinder 3 is axially fixed with a piston column 6, and the diameter of the piston column 6 is larger than the diameter of the opening of the metal cylinder 3, so that the piston column 6 can stick to the inner wall of the metal cylinder 3 and straighten the alloy rod 4 to slide axially along the metal cylinder 3. Even if the alloy rod 4 drops, the piston column 6 can be limited by the opening of the metal cylinder 3 and will not fall off the metal cylinder 3.
[0026] like Figure 1 , Figure 2 and Figure 4 As shown, two reinforcement members 7 are fixed on the outside of the lower net body 2, and the upper surfaces of the two reinforcement members 7 are respectively fixedly connected to the lower ends of the two alloy rods 4. The reinforcement members 7 are used to reinforce the connection between the lower net body 2 and the alloy rods 4 to improve the stability of the connection and reduce the occurrence of the alloy rods 4 being pulled apart during the process of supporting the metal tube 3.
[0027] like Figure 3 and Figure 5 As shown, ceramic rings 8 are fixed at the openings of the two metal cylinders 3. The two ceramic rings 8 are respectively sleeved on the outside of the two epoxy resin layers 5. The wear-resistant ceramic rings 8 are used to support the alloy rod 4 at the openings of the metal cylinder 3 to prevent the alloy rod 4 from directly rubbing the openings of the metal cylinder 3. This is beneficial for maintaining the diameter of the opening of the metal cylinder 3 within an appropriate range and continuously limiting the piston column 6.
[0028] like Figure 3 and Figure 5 As shown, the inner walls of the two metal cylinders 3 are bonded with an annular polyurethane lining 9, and the two polyurethane liners 9 are respectively sleeved on the outside of the two epoxy resin layers 5. The polyurethane liners 9 are used to block dust entering from the opening of the metal cylinder 3, create a relatively sealed environment for the piston column 6, and reduce the friction resistance of the piston column 6.
[0029] like Figure 1 and Figure 2 As shown, a plurality of support rods 10 are fixed at intervals on the lower surface of the lower net body 2. The support rods 10 are inserted downward into the reserved holes on the cement pier to support the lower net body 2 at multiple points, so that the lower net body 2 can be straightened and stably stand on the cement pier.
[0030] The working principle of the utility model is as follows: when installing the isolation net, several lower net bodies 2 are connected end to end horizontally on the cement pier, and then the metal cylinder 3 is slid along the alloy rod 4 to lift the upper net body 1 upward to reach the specified height, so that the upper net body 1 and the lower net body 2 form a height-adjustable isolation net. After adjustment, iron wire or cable ties are used to bundle the upper net body 1 and the lower net body 2 at multiple points, and steel pipes are used to reinforce the connection between adjacent isolation nets. At the same time, since the opening of the metal cylinder 3 faces downward and rainwater will not be poured in, and the alloy rod 4 is wrapped with an epoxy resin layer 5, the rust effect at the lifting and sliding part can be reduced, and there is no need to frequently apply lubricating oil, so as to reduce the lubrication cost during the height adjustment of the isolation net.
[0031] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. An adjustable highway isolation net, characterized by: The invention comprises an upper net body (1) and a lower net body (2) arranged side by side with the upper net body (1), wherein two metal cylinders (3) parallel to each other are fixed on both sides of the upper net body (1), and two alloy rods (4) parallel to each other are fixed on both sides of the lower net body (2), the two metal cylinders (3) are open downwards, the upper ends of the two alloy rods (4) are respectively inserted into the openings of the two metal cylinders (3) along the axial direction, and the outer sides of the two alloy rods (4) are provided with epoxy resin layers (5).
2. The adjustable highway isolation net according to claim 1 is characterized by: A piston column (6) is axially fixed to one end of the two alloy rods (4) located inside the metal cylinder (3), and the diameter of the piston column (6) is greater than the diameter of the opening of the metal cylinder (3).
3. The adjustable highway isolation net according to claim 1 is characterized by: Two reinforcement members (7) are fixed on the outer side of the lower net body (2), and the upper surfaces of the two reinforcement members (7) are respectively fixedly connected to the lower ends of the two alloy rods (4).
4. The adjustable highway isolation net according to claim 1, characterized in that: Ceramic rings (8) are fixed at the openings of the two metal cylinders (3), and the two ceramic rings (8) are respectively sleeved outside the two epoxy resin layers (5).
5. The adjustable highway isolation net according to claim 1 is characterized by: The inner walls of the two metal cylinders (3) are both bonded with an annular polyurethane liner (9), and the two polyurethane liners (9) are respectively sleeved on the outside of the two epoxy resin layers (5).
6. The adjustable highway isolation net according to claim 1, characterized in that: A plurality of support rods (10) are fixed at intervals on the lower surface of the lower net body (2).