A support base for a road bridge guardrail

Abstract

This utility model relates to the field of support base technology, specifically a road and bridge guardrail support base, comprising a base, a locking sleeve fixedly connected to the top of the base, a support column slidably connected to the inner wall of the locking sleeve, and a bolt locking member rotatably connected to one side of the locking sleeve, the threaded part of the bolt locking member engaging with the support column. The advantages of this utility model are: when the support column is inserted into the locking sleeve and adjusted so that the engaging hole corresponds to the clearance hole, the support column is locked by the bolt locking member passing through the clearance hole and the engaging hole. At this time, the pressure frame and the locking frame are in contact, and the metal protective cover completely covers the fixing bolts and the nut of the bolt locking member in the mounting hole. The metal protective cover isolates the bolt nuts of the fixed base from the outside environment, preventing direct corrosion from rainwater, salt, and other corrosive media; the cooperation between the sealing gasket and the sealing groove enhances the sealing performance of the protection, further preventing pollutants from entering and reducing the risk of bolt corrosion.

Description

Technical Field

[0001] This utility model relates to the field of support base technology, and in particular to a road and bridge guardrail support base. Background Technology

[0002] The guardrail support base is a fundamental component used in road and bridge engineering to fix guardrails and transfer loads. It is typically made of metal, concrete, or composite materials. Its structure includes the base body, connecting parts, and reinforcing ribs. The base body is the main load-bearing component, the connecting parts connect to the guardrail posts, and the reinforcing ribs enhance the base's resistance to overturning. Functionally, it is the connecting hub between the guardrail and the ground, firmly anchoring the guardrail to the road or bridge surface through its own weight and the fixing structure, ensuring that the guardrail does not shift or topple when subjected to external forces such as impacts and wind.

[0003] Existing guardrail support bases have significant shortcomings in terms of durability and maintenance, making them unable to withstand long-term erosion from the natural environment. Currently, most support bases are fixed to the ground with bolts, which pass through the base body and connect to pre-embedded parts in the ground or concrete foundation to ensure the stability of the base. However, the bolt heads are usually exposed to the external environment, constantly exposed to rainwater, snow, dust, and corrosive media in the air, making them highly susceptible to corrosion. Especially in rainy, coastal, or industrial environments, the combination of moisture, salt, and pollutants accelerates the oxidation and corrosion process of the bolt heads, leading to rust on the surface and thread jamming. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a road and bridge guardrail support base to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a road and bridge guardrail support base, including a base, a locking sleeve fixedly connected to the top of the base, a support column slidably connected to the inner wall of the locking sleeve, a bolt locking member rotatably connected to one side of the locking sleeve, the screw portion of the bolt locking member engaging with the support column, a sliding sleeve slidably connected to the outer surface of the locking sleeve, a metal protective cover fixedly connected to the bottom end of the sliding sleeve, the inner wall of the metal protective cover fitting against the top surface of the base, a locking frame fixedly connected to the inner wall of the sliding sleeve, and a pressure frame fixedly connected to the outer surface of the support column, the bottom surface of the pressure frame fitting against the top surface of the locking frame.

[0007] Preferably, in any of the above schemes, a plurality of symmetrically arranged stiffening plates are fixedly connected to the outer surface of the supporting column, and the bottom ends of the plurality of stiffening plates are fixedly connected to the pressure frame.

[0008] Preferably, in any of the above solutions, the bottom surface of the locking frame is fixedly connected with a plurality of symmetrically arranged positioning pins, and the plurality of positioning pins are all inserted into the top of the locking sleeve.

[0009] Preferably, in any of the above embodiments, the supporting column has through-holes on both the left and right sides, and the screw part of the bolt locking member is engaged with the supporting column through the through-holes.

[0010] Preferably, in any of the above embodiments, a sealing gasket is fixedly connected to the bottom surface of the metal protective cover, and a sealing groove is provided on the top of the base, wherein the sealing gasket is slidably connected to the base through the sealing groove.

[0011] Preferably, the top of the base has a plurality of symmetrically arranged mounting holes, the tops of which are located inside the metal protective cover.

[0012] Preferably, in any of the above solutions, clearance holes are provided on both the left and right sides of the sliding sleeve, and the nut and bolt locking parts are located inside the two clearance holes respectively.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0014] 1. First, bolt the base to the ground through the mounting holes. Then, fit the sliding sleeve onto the locking sleeve, ensuring the metal protective cover covers the top of the base, with the sealing gasket embedded in the sealing groove. Next, insert the support column into the locking sleeve, adjusting it so that the snap-fit ​​hole corresponds to the clearance hole. Lock the support column by passing the bolt locking piece through the clearance hole and snap-fit ​​hole. At this point, the pressure frame and locking frame are in contact, and the metal protective cover completely covers the fixing bolts and the nuts of the bolt locking pieces in the mounting holes. The metal protective cover isolates the bolt nuts of the fixed base from the outside environment, preventing direct corrosion from rainwater, salt, and other corrosive media. The cooperation between the sealing gasket and the sealing groove enhances the sealing performance of the protection, further preventing contaminants from entering, reducing the risk of bolt corrosion, ensuring the long-term stability of the connection between the base and the ground, and extending the service life of the support base.

[0015] 2. During installation, the positioning pin is inserted into the top of the locking sleeve to ensure precise alignment of the sliding sleeve and the metal protective cover. After the support column is inserted into the locking sleeve, it is quickly locked in place by the snap-fit ​​hole and the bolt locking component. The stiffening plate strengthens the connection between the pressure frame and the support column, ensuring even pressure transmission from the pressure frame to the locking frame. The clearance hole provides operating space for the bolt locking component without affecting the installation and fixation of the sliding sleeve. The positioning pin ensures the accuracy of the sliding sleeve installation and prevents the metal protective cover from shifting. The cooperation between the bolt locking component and the snap-fit ​​hole enables rapid fixation of the support column. The stiffening plate enhances the load-bearing capacity of the pressure frame and prevents structural deformation. The overall structure, through multiple positioning and locking mechanisms, enhances the connection stability between the support column and the base, while simplifying the installation process and improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the assembly of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the supporting column of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the base of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the metal protective cover of this utility model.

[0021] In the diagram: 1-base, 2-locking sleeve, 3-support column, 4-bolt locking element, 5-sliding sleeve, 6-metal protective cover, 7-locking frame, 8-pressure frame, 9-stiffening plate, 10-positioning pin, 11-clamping hole, 12-sealing gasket, 13-sealing groove, 14-mounting hole, 15-avoidance hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0023] like Figures 1 to 5 As shown, a road and bridge guardrail support base includes a base 1, a locking sleeve 2 fixedly connected to the top of the base 1, a support column 3 slidably connected to the inner wall of the locking sleeve 2, a bolt locking member 4 rotatably connected to one side of the locking sleeve 2, the screw part of the bolt locking member 4 engaging with the support column 3, a sliding sleeve 5 slidably connected to the outer surface of the locking sleeve 2, a metal protective cover 6 fixedly connected to the bottom end of the sliding sleeve 5, the inner wall of the metal protective cover 6 fitting against the top surface of the base 1, a locking frame 7 fixedly connected to the inner wall of the sliding sleeve 5, and a pressure frame 8 fixedly connected to the outer surface of the support column 3, the bottom surface of the pressure frame 8 fitting against the top surface of the locking frame 7.

[0024] As an optional technical solution of this utility model, a number of symmetrically arranged stiffening plates 9 are fixedly connected to the outer surface of the support column 3. The bottom ends of the stiffening plates 9 are all fixedly connected to the pressure frame 8. The stiffening plates 9 on the outer surface of the support column 3 are connected to the pressure frame 8, which can enhance the connection strength between the pressure frame 8 and the support column 3, so that the pressure of the pressure frame 8 on the locking frame 7 is transmitted to the support column 3 more evenly, avoiding deformation of the pressure frame 8 due to concentrated force, and improving the load-bearing stability of the overall structure.

[0025] As an optional technical solution of this utility model, the bottom surface of the locking frame 7 is fixedly connected with a number of symmetrically arranged positioning pins 10. The positioning pins 10 are all inserted into the top of the locking sleeve 2. The positioning pins 10 on the bottom surface of the locking frame 7 are inserted into the top of the locking sleeve 2, which can provide precise guidance for the sliding sleeve 5 during installation, ensuring that the sliding sleeve 5 and the metal protective cover 6 can be accurately aligned, avoiding installation misalignment that affects the protective effect, and at the same time enhancing the stability of the connection between the sliding sleeve 5 and the locking sleeve 2.

[0026] As an optional technical solution of this utility model, the left and right sides of the support column 3 are provided with snap-fit ​​holes 11. The screw part of the bolt locking part 4 is snapped into the support column 3 through the snap-fit ​​holes 11. The snap-fit ​​holes 11 of the support column 3 and the screw part of the bolt locking part 4 cooperate to quickly realize the snap-fit ​​fixation between the support column 3 and the locking sleeve 2. This not only ensures the stability of the installation position of the support column 3, but also makes it easy to adjust the height of the support column 3 as needed, thus improving the installation flexibility.

[0027] As an optional technical solution of this utility model, a sealing gasket 12 is fixedly connected to the bottom surface of the metal protective cover 6, and a sealing groove 13 is opened on the top of the base 1. The sealing gasket 12 is slidably connected to the base 1 through the sealing groove 13. The sealing gasket 12 on the bottom surface of the metal protective cover 6 and the sealing groove 13 on the top of the base 1 cooperate to form a sealing structure between the metal protective cover 6 and the base 1, preventing rainwater and dust from entering the interior of the metal protective cover 6 from the gaps, and further protecting the internal bolts from corrosion.

[0028] As an optional technical solution of this utility model, the top of the base 1 is provided with a number of symmetrically arranged mounting holes 14. The tops of the mounting holes 14 are all located inside the metal protective cover 6. The mounting holes 14 on the top of the base 1 are located inside the metal protective cover 6, so that the bolts used to fix the base 1 are completely covered by the metal protective cover 6, avoiding the bolts being directly exposed to the external environment, reducing the possibility of bolt corrosion, and ensuring the reliability of the base 1 fixation.

[0029] As an optional technical solution of this utility model, the sliding sleeve 5 has clearance holes 15 through both the left and right sides. The nut part and the screw part of the bolt locking member 4 are respectively located inside the two clearance holes 15. The clearance holes 15 on both sides of the sliding sleeve 5 provide a space for the nut part and the screw part of the bolt locking member 4, so that the sliding sleeve 5 will not interfere with the bolt locking member 4 during the sliding process, ensuring that the metal protective cover 6 can be installed smoothly, while not affecting the normal operation of the bolt locking member 4.

[0030] A road and bridge guardrail support base, the working principle of which is as follows:

[0031] 1): First, lock the base 1 to the ground with bolts through the mounting hole 14, then put the sliding sleeve 5 onto the locking sleeve 2 so that the metal protective cover 6 covers the top of the base 1 and the sealing gasket 12 is embedded in the sealing groove 13.

[0032] 2): Insert the support column 3 into the locking sleeve 2, adjust it so that the snap-fit ​​hole 11 corresponds to the clearance hole 15, and lock the support column 3 by passing the bolt locking piece 4 through the clearance hole 15 and the snap-fit ​​hole 11.

[0033] 3) At this point, the pressure frame 8 and the locking frame 7 are in contact, and the metal protective cover 6 completely covers the fixing bolts and the nuts of the bolt locking parts 4 inside the mounting hole 14. The metal protective cover 6 isolates the bolt nuts of the fixing base 1 from the outside world, preventing direct corrosion from rainwater, salt and other corrosive media.

[0034] In summary, the road and bridge guardrail support base first locks the base 1 to the ground with bolts through the mounting hole 14, then the sliding sleeve 5 is fitted onto the locking sleeve 2, so that the metal protective cover 6 covers the top of the base 1, and the sealing gasket 12 is embedded in the sealing groove 13; then the support column 3 is inserted into the locking sleeve 2, and adjusted so that the snap hole 11 corresponds to the clearance hole 15. The support column 3 is locked by the bolt locking piece 4 passing through the clearance hole 15 and the snap hole 11. At this time, the pressure frame 8 and the locking frame 7 are in contact, and the metal protective cover 6 completely covers the fixing bolts in the mounting hole 14 and the nut part of the bolt locking piece 4. The metal protective cover 6 isolates the bolt and nut parts of the fixed base 1 from the outside world, preventing direct corrosion from rainwater, salt, and other corrosive media. The cooperation between the sealing gasket 12 and the sealing groove 13 enhances the sealing performance of the protection, further blocking the entry of pollutants, reducing the risk of bolt corrosion, ensuring the long-term stability of the connection between the base 1 and the ground, and extending the service life of the support base. During installation, the positioning pin 10 is inserted into the top of the locking sleeve 2 to ensure precise alignment between the sliding sleeve 5 and the metal protective cover 6. After the support column 3 is inserted into the locking sleeve 2, it is quickly locked with the bolt locking part 4 through the snap-fit ​​hole 11. The stiffening plate 9 strengthens the connection between the pressure frame 8 and the support column 3, so that the pressure frame 8 is evenly transmitted to the locking frame 7. The clearance hole 15 provides operating space for the bolt locking part 4 without affecting the installation and fixation of the sliding sleeve 5. The positioning pin 10 ensures the accuracy of the installation of the sliding sleeve 5 and prevents the metal protective cover 6 from shifting; the bolt locking part 4 and the snap-fit ​​hole 11 cooperate to achieve quick fixation of the support column 3; the stiffening plate 9 improves the load-bearing capacity of the pressure frame 8 and prevents structural deformation; the overall structure enhances the connection stability between the support column 3 and the base 1 through multiple positioning and locking, while simplifying the installation process and improving construction efficiency.

Claims

1. A support base for a road bridge barrier, characterised in that: The system includes a base (1), a locking sleeve (2) fixedly connected to the top of the base (1), a support column (3) slidably connected to the inner wall of the locking sleeve (2), a bolt locking member (4) rotatably connected to one side of the locking sleeve (2), the screw part of the bolt locking member (4) engaging with the support column (3), a sliding sleeve (5) slidably connected to the outer surface of the locking sleeve (2), a metal protective cover (6) fixedly connected to the bottom end of the sliding sleeve (5), the inner wall of the metal protective cover (6) fitting against the top surface of the base (1), a locking frame (7) fixedly connected to the inner wall of the sliding sleeve (5), and a pressure frame (8) fixedly connected to the outer surface of the support column (3), the bottom surface of the pressure frame (8) fitting against the top surface of the locking frame (7).

2. A support base for a road barrier according to claim 1, wherein: The outer surface of the supporting column (3) is fixedly connected with several symmetrically arranged stiffening plates (9), and the bottom ends of the stiffening plates (9) are fixedly connected to the pressure frame (8).

3. A support base for a road barrier as claimed in claim 2, wherein: The bottom surface of the locking frame (7) is fixedly connected with several symmetrically arranged positioning pins (10), and the positioning pins (10) are all inserted into the top of the locking sleeve (2).

4. A support base for a road barrier according to claim 3, wherein: The support column (3) has through-holes (11) on both the left and right sides, and the screw part of the bolt locking part (4) is engaged with the support column (3) through the through-holes (11).

5. A road and bridge guardrail support base according to claim 4, characterized in that: The bottom surface of the metal protective cover (6) is fixedly connected with a sealing gasket (12), and the top of the base (1) is provided with a sealing groove (13). The sealing gasket (12) is slidably connected to the base (1) through the sealing groove (13).

6. A support base for a road barrier as claimed in claim 5, wherein: The top of the base (1) has several symmetrically arranged mounting holes (14), and the top of the mounting holes (14) are located inside the metal protective cover (6).

7. A support base for a road barrier as claimed in claim 5, wherein: The sliding sleeve (5) has clearance holes (15) through both the left and right sides, and the nut part and the screw cap part of the bolt locking part (4) are located inside the two clearance holes (15) respectively.

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