Bridge support based on speed locker
By installing a laser-guided tube and a positioning shim on the bridge bearing, the laser is used to align the bearing position, solving the problem of bearing position control during installation and achieving precise installation and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANDAN POLYTECHNIC COLLEGE
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-15
AI Technical Summary
When installing bridge bearings with speed lockers, it is difficult to effectively control the position of the bearings, which affects the installation accuracy and subsequent maintenance work.
Alignment components, including laser tubes and adjustment shims, are installed on the upper and lower supports of the bridge bearings. The laser beam emitted by the laser is aligned with the bearing position to ensure that the bearing remains vertical during installation, which facilitates installation and subsequent maintenance.
By combining laser-guided tubes and adjusting shims, precise installation of the support position and convenient subsequent maintenance are achieved, improving installation efficiency and quality.
Smart Images

Figure CN224243658U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge bearing technology, specifically relating to a bridge bearing based on a speed locker. Background Technology
[0002] The speed lock is a speed-dependent locking device developed based on the principle of fluid motion, particularly the throttling resistance generated when fluid passes through a throttling orifice. It is widely used in continuous beam bridges. The speed lock employs a hydraulic cylinder structure filled with silicone grease. Utilizing the viscous properties of fluid in motion, the resistance is minimal at low speeds, but increases rapidly as the speed reaches the design value, causing the speed lock to change from flexible to rigid and lock. The speed lock is typically installed between the beam and the pier. Under normal conditions, it can accommodate horizontal displacements caused by beam rotation and temperature-induced deformation. Under braking forces, wind loads, or seismic loads, the speed lock automatically locks, transforming the structure from having one fixed pier to having two or more fixed piers, effectively distributing the load of the superstructure across multiple piers and resulting in a more uniform stress distribution.
[0003] The speed lock needs to be installed between the beam and the pier via supports. Generally, the beam and the pier are perpendicular to each other, so the two supports need to be perpendicular when connecting the speed lock. Multiple bolts need to be installed on the supports. During the installation work, it is often difficult to control the position of the supports, which affects the installation and use. Utility Model Content
[0004] This utility model provides a bridge bearing based on a speed locker, which has the feature of being able to control the position of the bearing during the installation work, making the installation of the bearing convenient.
[0005] This utility model provides the following technical solution: a bridge support based on a speed locker, including a speed locker body, an upper support and a lower support on the speed locker body, both the upper support and the lower support having a plurality of mounting holes, both the upper support and the lower support having a positioning and matching component on their sides, the positioning and matching component including a laser tube and an adjusting shim, the adjusting shim having an adjusting elongated hole, the adjusting elongated hole being opposite to the mounting holes, both outer end faces of the two laser tubes being attached to one side of the upper support and the lower support, and a laser for emitting laser light being inserted into the laser tube.
[0006] The laser tube has a laser transmission hole, and the laser is located inside the laser transmission hole.
[0007] The outer diameter of the laser is equal to the inner diameter of the laser transmission hole, which is disposed through the laser tube.
[0008] The laser tube is fixedly connected to a connecting seat on its outer side, and the adjusting shim is fixedly connected to the connecting seat.
[0009] The center lines of the laser tube located on the upper support and the laser tube located on the lower support are perpendicular to each other.
[0010] The upper support and the lower support are respectively installed on the beam and the pier by bolts, and the bolt nuts are attached to the outer end face of the adjustment shim.
[0011] The top of the laser tube is fixedly connected to a rubber ring, and the top of the rubber ring protrudes from the mounting contact surface of the upper support and the lower support.
[0012] The beneficial effects of this utility model are:
[0013] The positioning components include laser tubes and adjusting shims. Laser tubes are installed on both the upper and lower supports. The laser tubes can be attached to the outside of the supports, and the adjusting elongated hole and the mounting hole are aligned. As the support installation process progresses, the laser can be used inside the laser transmission hole. The laser lines at the two positions are aligned, and the center lines of the laser tubes on the upper and lower supports are perpendicular to each other. This allows for control of the support position during the installation process, facilitating the installation of the support.
[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is the front view of the present invention;
[0017] Figure 3 This is a schematic diagram of the mounting hole structure in this utility model;
[0018] Figure 4 This is a schematic diagram of the positioning and alignment component in this utility model;
[0019] In the diagram: 1. Speed lock body; 11. Upper support; 12. Lower support; 13. Mounting hole; 2. Positioning relative component; 21. Laser tube; 211. Laser through hole; 22. Connecting seat; 23. Adjustment shim; 231. Adjustment elongated hole. Detailed Implementation
[0020] Please see Figures 1-4The present invention provides the following technical solution: it includes a speed lock body 1, an upper support 11 and a lower support 12 on the speed lock body 1, both the upper support 11 and the lower support 12 are provided with a plurality of mounting holes 13, both the upper support 11 and the lower support 12 are provided with a positioning relative component 2 on their sides, the positioning relative component 2 includes a laser tube 21 and an adjusting shim 23, the adjusting shim 23 is provided with an adjusting elongated hole 231, the adjusting elongated hole 231 is opposite to the mounting hole 13, the outer end faces of the two laser tubes 21 are attached to one side of the upper support 11 and the lower support 12, and a laser for emitting laser is inserted into the laser tube 21.
[0021] In this embodiment: the speed lock body 1 is provided with an upper support 11 and a lower support 12. Both the upper support 11 and the lower support 12 are provided with several mounting holes 13. The positioning relative component 2 includes a laser tube 21 and an adjusting shim 23. The upper support 11 and the lower support 12 are respectively installed on the beam and the pier by bolts. The bolt nuts are attached to the outer end face of the adjusting shim 23. The adjusting shim 23 is provided with an adjusting elongated hole 231, which is opposite to the mounting holes 13. The outer end faces of the two laser tubes 21 are attached to one side of the upper support 11 and the lower support 12. A laser for emitting laser light is inserted into the laser tube 21. Laser tubes are provided on both the upper support 11 and the lower support 12. 21. The laser can be installed inside the laser tube 21. After the installation is completed, the laser can be removed from the laser tube 21. The laser tube 21 can be attached to the outside of the support, and the adjustment elongated hole 231 and the mounting hole 13 can be aligned. As the support installation process progresses, the laser can be placed inside the laser transmission hole 211. The laser lines at the two positions are aligned. The center lines of the laser tube 21 on the upper support 11 and the laser tube 21 on the lower support 12 are perpendicular to each other. The position of the support can be controlled during the installation process, which is convenient for the installation of the support. After the support is installed, the adjustment shim 23 can be placed on the support to assist the bolts, which is convenient for inspection in subsequent maintenance work.
[0022] The laser tube 21 has a laser transmission hole 211, and the laser is located inside the laser transmission hole 211. Using the laser transmission hole 211 as a reference, the laser can be emitted at the required location.
[0023] The outer diameter of the laser is equal to the inner diameter of the laser through-hole 211, which is set through the laser tube 21. The laser can be installed inside the laser tube 21 for use, and can be removed from the laser tube 21 after the installation is completed.
[0024] A connecting seat 22 is fixedly connected to the outside of the laser tube 21, and an adjusting shim 23 is fixedly connected to the connecting seat 22. Under the action of the adjusting elongated hole 231, the adjusting shim 23 can extend outward and retract inward on the support, which is convenient for adjustment according to the position of the two supports.
[0025] A rubber ring is fixedly connected to the top of the laser tube 21, and the top of the rubber ring protrudes from the mounting contact surface of the upper support 11 and the lower support 12.
[0026] The working principle and usage process of this utility model are as follows: The upper support 11 and the lower support 12 are respectively installed on the beam and the pier by bolts. The bolt nuts are attached to the outer end face of the adjusting shim 23. The adjusting shim 23 has an adjusting elongated hole 231, which is opposite to the mounting hole 13. The outer end faces of the two laser tubes 21 are attached to one side of the upper support 11 and the lower support 12. A laser for emitting laser light is inserted into the laser tube 21. Laser tubes 21 are provided on both the upper support 11 and the lower support 12. The laser can be installed in the laser tube 21 for use. After the installation work is completed, the laser can be removed from the laser tube. The laser can be removed from the laser tube 21 and attached to the outside of the support. The adjustment elongated hole 231 and the mounting hole 13 are aligned. As the support installation process progresses, the laser can be used inside the laser transmission hole 211. The laser lines at the two positions are aligned. The center lines of the laser tube 21 on the upper support 11 and the laser tube 21 on the lower support 12 are perpendicular to each other. The position of the support can be controlled during the installation work, which is convenient for the installation of the support. After the support is installed, the adjustment shim 23 can be used to assist the bolts on the support for easy inspection in subsequent maintenance work.
Claims
1. A bridge support based on a speed locker, comprising a speed locker body (1), wherein the speed locker body (1) is provided with an upper support (11) and a lower support (12), wherein both the upper support (11) and the lower support (12) are provided with a plurality of mounting holes (13), characterized in that: The upper support (11) and the lower support (12) are each provided with a positioning and matching component (2). The positioning and matching component (2) includes a laser tube (21) and an adjustment shim (23). The adjustment shim (23) has an adjustment elongated hole (231) which is opposite to the mounting hole (13). The outer end faces of the two laser tubes (21) are attached to one side of the upper support (11) and the lower support (12). A laser for emitting laser light is inserted into the laser tube (21).
2. A bridge bearing based on a speed locker according to claim 1, characterized in that: The laser tube (21) has a laser transmission hole (211) and the laser is located inside the laser transmission hole (211).
3. A bridge bearing based on a speed locker according to claim 2, characterized in that: The outer diameter of the laser is equal to the inner diameter of the laser through-hole (211), which is disposed through the laser tube (21).
4. A bridge bearing based on a speed locker according to claim 1, characterized in that: A connecting seat (22) is fixedly connected to the outside of the laser tube (21), and the adjusting shim (23) is fixedly connected to the connecting seat (22).
5. A bridge bearing based on a speed locker according to claim 1, characterized in that: The center lines of the laser tube (21) located on the upper support (11) and the laser tube (21) located on the lower support (12) are perpendicular to each other.
6. A bridge bearing based on a speed locker according to claim 1, characterized in that: The upper support (11) and the lower support (12) are respectively installed on the beam and the pier by bolts, and the bolt nuts are attached to the outer end face of the adjusting shim (23).
7. A bridge bearing based on a speed locker according to claim 1, characterized in that: A rubber ring is fixedly connected to the top of the laser tube (21), and the top of the rubber ring protrudes from the mounting contact surface of the upper support (11) and the lower support (12).