Pre-buried channel of high-speed rail pier hanging fence
By designing pre-embedded channels for the suspension railings of high-speed railway bridge piers and utilizing adjustment mechanisms such as worm gears, worm wheels, and threaded rods, the problem of difficult adjustment of positioning deviations in traditional pre-embedded parts was solved, thus improving installation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-19
AI Technical Summary
The positioning deviation of traditional embedded parts is difficult to adjust in the construction of high-speed railway bridges, resulting in low installation efficiency and safety hazards.
Design a pre-embedded channel for a high-speed railway bridge pier suspension railing, comprising a pre-embedded plate, a pre-embedded column, a placement plate, a sliding groove, a slider, and an adjustment mechanism. Through the cooperation of a worm gear, a worm wheel, and a threaded rod, the precise adjustment and stable welding of the channel are achieved.
It improves the installation accuracy and stability of the hanging fence components, reduces construction time and costs, and lowers safety risks.
Smart Images

Figure CN224259181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pre-embedded channel technology, specifically a pre-embedded channel for a high-speed railway bridge pier suspension railing. Background Technology
[0002] In the construction of high-speed railway bridges, auxiliary facilities such as hanging railings and maintenance platforms are often installed on the outside of the bridge piers. The installation of these facilities depends on the precise positioning of embedded parts. As the core structure connecting the main body of the bridge pier and the auxiliary facilities, the installation accuracy of the embedded parts directly affects the efficiency of subsequent component docking and the overall structural safety. Traditional embedded parts mostly adopt a fixed design, that is, the embedded plate and embedded column are directly cast into the concrete through welding or binding processes.
[0003] During the construction of high-speed railway bridges, due to the high strength and stability of hardened concrete, it is extremely difficult to adjust embedded parts if their positioning deviates. For example, during the installation of hanging fence components, if the connecting holes are misaligned with the grooves of the embedded parts, on-site construction workers often have to resort to remedial measures such as cutting off the excess parts of the embedded parts or drilling secondary holes. However, these methods are not only cumbersome and inefficient, significantly extending the construction period and increasing labor and time costs, but they also have a high risk of weakening the overall strength of the embedded structure, creating safety hazards for subsequent projects. Utility Model Content
[0004] The purpose of this utility model is to provide a pre-embedded channel for the suspension railing of high-speed railway bridge piers, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-embedded channel for a high-speed railway bridge pier suspension railing, comprising an embedded plate, a plurality of embedded columns fixed on one side of the surface of the embedded plate, a placement plate fixed on the surface of the embedded plate, a plurality of sliding grooves opened on the surface of the placement plate, a slider slidably disposed on the surface of the sliding grooves, an action groove opened on the surface of the slider, an adjustment mechanism provided on the surface of the slider, and a plurality of welding grooves opened on the surface of the placement plate.
[0006] Preferably, the adjustment mechanism includes a plurality of worm gears rotating in the inner cavity of the placement plate, the surfaces of the worm gears being engaged with worm wheels, the inner cavities of the worm wheels being fixed with threaded rods, and the threaded rods engaging with the slider.
[0007] Preferably, the thread helix angle of the threaded rod is less than the equivalent friction angle, which gives the threaded rod self-locking properties.
[0008] Preferably, a force-bearing block is fixed to one side of the worm gear surface, and the force-bearing block rotates on the surface of the placement plate.
[0009] Preferably, a limiting post is slidably provided on one side of the slider surface, and both sides of the limiting post are fixed to the inner cavity of the placement plate.
[0010] Preferably, the number of welding grooves corresponds to the number of sliders, and they are evenly distributed on both sides of the sliders.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] In use, this utility model can be connected to the concrete of a high-speed railway bridge under the action of the embedded plate and embedded column. Then, under the action of the placement plate and the action groove, it can be connected to the hanging fence assembly. In addition, under the action of the adjustment mechanism, the position of the action groove can be adjusted to improve the applicability of the action groove. Furthermore, under the action of the welding groove, after the position of the action groove is determined, the slider and the placement plate can be welded through the welding groove to improve the stability of the slider and the action groove and improve the practicality of this device. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram from another perspective of the present invention;
[0015] Figure 3 This is a partial three-dimensional structural diagram of the present invention;
[0016] Figure 4 This is a partial three-dimensional structural diagram of the present invention.
[0017] In the diagram: 1. Embedded plate; 2. Embedded column; 3. Placement plate; 4. Slide groove; 5. Sliding block; 6. Functional groove; 7. Adjustment mechanism; 71. Worm gear; 72. Worm wheel; 73. Threaded rod; 8. Limiting column; 9. Force-bearing block; 10. Welding groove. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4As shown, a pre-embedded channel for a high-speed railway bridge pier suspension railing includes a pre-embedded plate 1, several pre-embedded columns 2 fixed on one side of the surface of the pre-embedded plate 1, a placement plate 3 fixed on the surface of the pre-embedded plate 1, several sliding grooves 4 opened on the surface of the placement plate 3, a slider 5 slidably arranged on the surface of the sliding grooves 4, an action groove 6 opened on the surface of the slider 5, an adjustment mechanism 7 arranged on the surface of the slider 5, and several welding grooves 10 opened on the surface of the placement plate 3.
[0020] In use, this utility model can be connected to the concrete of a high-speed railway bridge under the action of the embedded plate 1 and the embedded column 2. Then, under the action of the placement plate 3 and the action groove 6, it can be connected to the hanging fence assembly. In addition, under the action of the adjustment mechanism 7, the position of the action groove 6 can be adjusted to improve the applicability of the action groove 6. Furthermore, under the action of the welding groove 10, after the position of the action groove 6 is determined, the slider 5 and the placement plate 3 can be welded through the welding groove 10 to improve the stability of the slider 5 and the action groove 6 and improve the practicality of this device.
[0021] The adjustment mechanism 7 includes several worm gears 71 that rotate within the cavity of the placement plate 3. A worm wheel 72 meshes with the surface of each worm gear 71, and a threaded rod 73 is fixed within the cavity of the worm wheel 72. The threaded rod 73 meshes with the slider 5. In this embodiment, by configuring the worm gears 71, worm wheel 72, and threaded rod 73, when the worm gear 71 rotates, the worm wheel 72 meshing with the surface of the worm gear 71 can cause the threaded rod 73 to rotate, thereby causing the slider 5 meshing with the surface of the threaded rod 73 to move.
[0022] The thread helix angle of the threaded rod 73 is less than the equivalent friction angle, which makes the threaded rod 73 self-locking. In this embodiment, with this setting, when the threaded rod 73 and the slider 5 are engaged, the slider 5 can prevent the threaded rod 73 from rotating under the action of self-locking.
[0023] A force-bearing block 9 is fixed on one side of the surface of the worm 71. The force-bearing block 9 rotates on the surface of the placement plate 3. In this embodiment, the force-bearing block 9 is set to provide a force point for the workers, so that the worm 71 can rotate.
[0024] A limiting post 8 is slidably provided on one side of the surface of the slider 5. Both sides of the limiting post 8 are fixed to the inner cavity of the placement plate 3. In this embodiment, the limiting post 8 provides a limit for the sliding of the slider 5, thereby improving the stability of the slider 5 when it slides.
[0025] The number of welding grooves 10 corresponds to the number of sliders 5, and they are evenly distributed on both sides of the sliders 5. In this embodiment, with this arrangement, when the sliders 5 are welded through the welding grooves 10, the stability of the connection between the sliders 5 and the placement plate 3 can be improved under the action of the welding grooves 10 on both sides.
[0026] Working Principle: When using this device, it can be pre-embedded in the concrete of the high-speed railway bridge pier through the pre-embedded plate 1 and pre-embedded column 2. During the installation of the hanging fence, the worker can connect the hanging fence component through the action groove 6. If the position of the component and the action groove 6 does not match, the worker can first use a tool to rotate the force block 9. Then, under the action of the worm 71 and worm wheel 72, the threaded rod 73 and the slider 5 will mesh. Then, under the action of the slider 5, the action groove 6 will move, thereby changing the position of the action groove 6, so that the action groove 6 and the component can cooperate. After the position of the action groove 6 meets the requirements, the worker can weld the slider 5 through the welding groove 10. Then, under the action of welding, the slider 5 and the placement plate 3 will be connected, improving the connection stability between the slider 5 and the placement plate 3.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pre-embedded channel for a high-speed railway bridge pier suspension railing, comprising an embedded plate (1), characterized in that: A number of embedded columns (2) are fixed on one side of the surface of the embedded plate (1), a placement plate (3) is fixed on the surface of the embedded plate (1), a number of sliding grooves (4) are opened on the surface of the placement plate (3), a slider (5) is slidably arranged on the surface of the sliding grooves (4), an action groove (6) is opened on the surface of the slider (5), an adjustment mechanism (7) is arranged on the surface of the slider (5), and a number of welding grooves (10) are opened on the surface of the placement plate (3).
2. The embedded channel for the high-speed railway bridge pier suspension railing according to claim 1, characterized in that: The adjustment mechanism (7) includes a plurality of worms (71) rotating in the inner cavity of the placement plate (3). The surface of the worm (71) is engaged with a worm wheel (72). The inner cavity of the worm wheel (72) is fixed with a threaded rod (73). The threaded rod (73) engages with the slider (5).
3. The embedded channel for the high-speed railway bridge pier suspension railing according to claim 2, characterized in that: The thread helix angle of the threaded rod (73) is less than the equivalent friction angle, which makes the threaded rod (73) self-locking.
4. The embedded channel for the high-speed railway bridge pier suspension railing according to claim 2, characterized in that: A force-bearing block (9) is fixed on one side of the surface of the worm (71), and the force-bearing block (9) rotates on the surface of the placement plate (3).
5. The embedded channel for the high-speed railway bridge pier suspension railing according to claim 1, characterized in that: A limiting post (8) is slidably provided on one side of the surface of the slider (5), and both sides of the limiting post (8) are fixed to the inner cavity of the placement plate (3).
6. The embedded channel for the high-speed railway bridge pier suspension railing according to claim 1, characterized in that: The number of welding grooves (10) corresponds to the number of sliders (5), and they are evenly distributed on both sides of the sliders (5).