Height limiting device for highway
The height limiting device uses a buffer mechanism with push rods and springs to absorb impact forces, addressing the vulnerability of existing devices and enabling adjustable height settings.
Patent Information
- Application Number
- CN202420485580.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-13
AI Technical Summary
Current highway height limit devices are vulnerable to damage from vehicles with smaller heights that attempt to pass through, causing impact and reducing their service life.
A height limiting device with a buffer mechanism using a push rod, guide rods, and buffer springs to absorb impact forces, combined with adjustable support tubes to prevent direct contact and structural damage.
The device effectively absorbs impact forces, protecting the height limit column from damage and allowing for adjustable height settings to accommodate various vehicles.
Smart Images
Figure CN222275325U_ABST
Abstract
Description
Technical Field
[0001] The utility model is applicable to the technical field of highway engineering, and particularly relates to a height limiting device for highways. Background Art
[0002] At present, in the process of highway construction, according to different road conditions and actual conditions of roadbed, it is often necessary to restrict the types and heights of vehicles that can travel on the surface to avoid damage to the road caused by excessive vehicles.
[0003] However, during the construction and use of the height limit devices currently used on highways, some vehicles with smaller height limits will attempt to pass through. When these vehicles pass through, if the height is too high, their tops will directly contact and impact the bottom surface of the height limit column, causing damage to it, thereby affecting the service life of the height limit device. Therefore, we propose a height limit device for highways. Utility Model Content
[0004] The main purpose of the utility model is to provide a height limiting device for roads, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A height limiting device for highways, comprising a mounting base, two groups of the mounting bases having a hollow tube fixedly mounted vertically on the top surface, a support tube slidably mounted through the top of each hollow tube, a connecting sleeve fixedly mounted on the top surface of each support tube, and a height limiting column fixedly mounted horizontally through the inner sides of the two groups of connecting sleeves;
[0007] The outer bottom end surfaces of the height-limiting column are fixedly mounted with connecting plates, and the number of connecting plates is four groups, and guide rods are transversely fixedly mounted between the sides of each two groups of connecting plates, and the outer end surfaces of each guide rod are slidably sleeved with extrusion sleeves, and the outer surface of each extrusion sleeve is hinged with a push rod through a rotating shaft;
[0008] A buffer arc plate is movably installed on the outer side of the bottom of the height limiting column, and the side of the push rod away from the extrusion sleeve is hinged to the outer side of the buffer arc plate through a rotating shaft, and a buffer spring is movably sleeved on the outer side surface of the middle end of each guide rod.
[0009] By adopting the above technical scheme, through the transmission action of the push rod and the guiding sliding action of the guide rod on the extrusion sleeve, the buffer arc plate can block and protect the outer side of the bottom surface of the height limit column while buffering the impact force on the surface of the buffer arc plate, thereby preventing the external impact force from directly contacting the height limit column rigidly and causing impact and damage to it, thereby affecting the service life of the height limit column.
[0010] As an optional solution of the technical solution of the present application, each of the support tubes is provided with plug-in screw holes at both ends of the side, and the number of the plug-in screw holes is several groups. Each of the top side ends of the hollow tube is threadedly penetrated by fastening bolts, and the sides of the fastening bolts are threadedly screwed into the plug-in screw holes.
[0011] By adopting the above technical solution, the position of the support tube is adjusted and reinforced by inserting the fastening bolt into the inserting screw hole.
[0012] As an optional solution of the technical solution of the present application, support rods are obliquely fixedly installed on both side surfaces of the bottom of each hollow tube, and the bottom of the support rod is fixedly installed on the top surface of the mounting base.
[0013] By adopting the above technical solution, the outer side of the hollow tube is reinforced by the structural effect of the support rod.
[0014] As an optional solution of the technical solution of the present application, both sides of the top of each support tube are provided with mounting screw holes, and the fastening bolts are threadedly penetrated and screwed into the inside of the mounting screw holes.
[0015] By adopting the above technical solution, the plugging and use of the fastening bolts is realized through the structure of the mounting screw hole.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. The technical solution of the present application is a highway height limit device, in which the two ends of a push rod are respectively connected to the buffer arc plate and the outer side of the height limit column by a rotating shaft, and the buffer arc plate is movably installed under the bottom of the height limit column, so that the buffer arc plate can block and protect the outer side of the bottom surface of the height limit column. At the same time, combined with the transmission action of the push rod, when its surface is subjected to impact force, the push rod can provide corresponding driving force to the extrusion sleeve to make it move horizontally on the surface of the guide rod, squeeze the buffer spring to cause it to deform, and then buffer the impact force borne by the surface of the buffer arc plate, so as to avoid the external impact force from directly contacting the height limit column rigidly and causing impact to it and damaging it, thereby affecting the service life of the height limit column.
[0018] 2. The technical solution of the present application is a height limit device for roads. By inserting a support tube into a hollow tube, the support tube can be moved vertically inside the hollow tube to adjust the height limit column to move vertically, thereby adjusting the vertical position of the height limit column and improving the height limit applicability of the entire height limit device. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a highway height limiting device of the utility model;
[0020] Figure 2 It is a schematic diagram of a cross-sectional structure of a height limiting column of a highway height limiting device according to the utility model;
[0021] Figure 3 The utility model is a schematic diagram of a cross-sectional structure of a hollow tube of a highway height limiting device in a top view.
[0022] Figure numerals: 1. Mounting base; 11. Hollow tube; 12. Support tube; 13. Height limit column; 2. Connecting plate; 21. Guide rod; 22. Extrusion sleeve; 23. Push rod; 24. Buffer spring; 25. Buffer arc plate; 26. Connecting sleeve; 3. Fastening bolt; 31. Insert screw hole; 32. Mounting screw hole; 4. Support rod. DETAILED DESCRIPTION
[0023] like Figure 1-3 As shown, the utility model provides a technical solution: a height limiting device for highways, each support tube 12 is provided with plug-in screw holes 31 at both ends of the side, and the number of the plug-in screw holes 31 is several groups, each support tube 12 is provided with mounting screw holes 32 on both sides of the top, and the fastening bolts 3 are threadedly penetrated and screwed into the inside of the mounting screw holes 32, each hollow tube 11 is threadedly penetrated and screwed with fastening bolts 3 at both ends of the top side, and the sides of the fastening bolts 3 are threadedly screwed into the inside of the plug-in screw holes 31.
[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), the top surfaces of the two groups of mounting bases 1 are vertically fixed with hollow tubes 11, the top of each hollow tube 11 is slidably installed with a support tube 12, the top surface of each support tube 12 is fixedly installed with a connecting sleeve 26, and the limited height column 13 is horizontally fixedly installed between the inner sides of the two groups of connecting sleeves 26.
[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), connecting plates 2 are fixedly installed on the outer bottom end surfaces of the height limiting column 13, and the number of connecting plates 2 is four groups, and a guide rod 21 is laterally fixedly installed between the sides of each two groups of connecting plates 2, and an extrusion sleeve 22 is slidably sleeved on the outer end surfaces of each guide rod 21, and a push rod 23 is hinged on the outer surface of each extrusion sleeve 22 through a rotating shaft.
[0026] In this technical solution (through Figure 1 , Figure 2 and Figure 3As shown), a buffer arc plate 25 is movably installed on the outer side of the bottom of the height limiting column 13, and the side of the push rod 23 away from the extrusion sleeve 22 is hinged to the outer side of the buffer arc plate 25 through a rotating shaft, and a buffer spring 24 is movably sleeved on the outer side surface of the middle end of each guide rod 21.
[0027] In some technical solutions (through Figure 1 , Figure 2 and Figure 3 As shown), support rods 4 are obliquely fixedly installed on both side surfaces of the bottom of each hollow tube 11, and the bottom of the support rods 4 is fixedly installed on the top surface of the mounting base 1.
[0028] When working, after the fastening bolts 3 are screwed and removed from the plug-in screw holes 31 and the mounting screw holes 32, the two sets of support pipes 12 are pushed to drive the height limit column 13 to move vertically to adjust the height between the height limit column 13 and the ground. After the height limit height is changed, the fastening bolts 3 are passed through the mounting screw holes 32 and inserted into the plug-in screw holes 31 at the corresponding positions. When an external over-height vehicle rashly passes through the height limit column 13 and its top contacts the height limit column 13 and the outer side of the buffer arc plate 25 below it, the buffer The arc plate 25 causes an impact, so that the buffer arc plate 25 can block and protect the outer side of the bottom surface of the height limit column 13. At the same time, combined with the transmission action of the push rod 23, after its surface is subjected to the impact force, the push rod 23 can provide a corresponding driving force to the extrusion sleeve 22 so that it moves horizontally on the surface of the guide rod 21, and then squeezes the buffer spring 24 to cause it to deform, and then buffers the impact force borne by the surface of the buffer arc plate 25, so as to prevent the external impact force from directly contacting the height limit column 13 rigidly and causing impact to it and causing damage to it.
Claims
1. A height limiting device for a highway, comprising a mounting base (1), characterized in that: The top surfaces of the two groups of mounting bases (1) are both vertically fixedly mounted with hollow tubes (11), the top of each hollow tube (11) is internally penetrated by a support tube (12) for sliding installation, the top surface of each support tube (12) is fixedly mounted with a connecting sleeve (26), and the inner sides of the two groups of connecting sleeves (26) are horizontally penetrated by a limited height column (13) for fixed installation; The outer bottom end surfaces of the height limiting column (13) are fixedly mounted with connecting plates (2), and the number of connecting plates (2) is four groups, and a guide rod (21) is transversely fixedly mounted between the sides of each two groups of connecting plates (2), and the outer end surfaces of each guide rod (21) are slidably sleeved with an extrusion sleeve (22), and the outer surface of each extrusion sleeve (22) is hinged with a push rod (23) via a rotating shaft; A buffer arc plate (25) is movably mounted on the outer side of the bottom of the height limiting column (13), and the side of the push rod (23) away from the extrusion sleeve (22) is hinged to the outer side of the buffer arc plate (25) through a rotating shaft, and a buffer spring (24) is movably sleeved on the outer side surface of the middle end of each guide rod (21).
2. A highway height limiting device according to claim 1, characterized in that: Both ends of the side of each support tube (12) are provided with plug-in screw holes (31), and the number of the plug-in screw holes (31) is several groups.
3. A highway height limiting device according to claim 1, characterized in that: Both ends of the top side of each hollow tube (11) are threadedly penetrated with fastening bolts (3), and the side of the fastening bolt (3) is threadedly screwed into the inside of the plug-in screw hole (31).
4. A highway height limiting device according to claim 1, characterized in that: Support rods (4) are obliquely and fixedly mounted on both side surfaces of the bottom of each hollow tube (11), and the bottom of the support rods (4) is fixedly mounted on the top surface of the mounting base (1).
5. A highway height limiting device according to claim 1, characterized in that: Both sides of the top of each support tube (12) are provided with mounting screw holes (32), and the fastening bolts (3) are threadedly penetrated and screwed into the inside of the mounting screw holes (32).