A positioning device for pre-embedded bolts in high-speed railway railings

The combination of the partition box and the positioning arm solves the problem of the pre-embedded bolts of high-speed railway railings being misaligned during concrete pouring, ensuring the stability of the bolts and the efficiency of installation.

CN224452287UActive Publication Date: 2026-07-03ZHENGZHOU ENG CO LTD CHINA RAILWAY SEVENTH GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU ENG CO LTD CHINA RAILWAY SEVENTH GRP
Filing Date
2025-08-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, the positioning method of pre-embedded bolts for high-speed railway railings has poor fixing effect and is easily affected by concrete flow, resulting in low installation efficiency.

Method used

The system employs a combination structure of a partition box and a positioning arm. The partition box is located inside the protective wall pouring trough, and the positioning arm is horizontally positioned on top of the partition box and connected by a guide tube and a pin to ensure the stability of the partition box and prevent tilting. The system is combined with an adjusting rod and a sleeve to adapt to different pouring trough widths, and the wing plate increases stability.

Benefits of technology

This method achieves accurate positioning and stability of pre-embedded bolts during concrete pouring, simplifies the installation process, and improves the installation efficiency of railings.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application belongs to the field of high-speed railway guardrail installation technology and provides a positioning device for pre-embedded bolts of high-speed railway guardrails. The device includes: a partition box centrally located within the pouring trench of the protective wall; a positioning hole at the bottom of the partition box; and a wing plate formed by bending the top of the partition plate corresponding to the templates on both sides of the pouring trench outwards to form a horizontal shape. The wing plate rests on the top of the adjacent template, and a positioning element is provided on the top of the template. A positioning arm is horizontally positioned at the top of the partition box and centered along the width of the pouring trench. A guide tube is centrally located on the upper surface of the wing plate, and the end of the positioning arm passes through the corresponding guide tube and connects to the positioning element to limit the tilting or displacement of the partition box. This application can accurately position the pre-embedded bolts during the pouring of the protective wall and ensure the stability of the pre-embedded bolts, ensuring that the pre-embedded bolts are not deviated due to the flow of concrete, thereby simplifying the overall process and improving the installation efficiency of the guardrail.
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Description

Technical Field

[0001] This application relates to the field of high-speed railway guardrail installation technology, and in particular to a high-speed railway guardrail pre-embedded bolt positioning device. Background Technology

[0002] High-speed railways are equipped with railings on their protective walls. These railings are important facilities for ensuring the safety of high-speed railways. Their main function is to prevent people and animals from accidentally entering the railway line and reduce the occurrence of accidents. In order to facilitate the installation of railings on the protective walls, bolts are usually pre-embedded in the protective walls.

[0003] Currently, the traditional positioning method for pre-embedded bolts during the pouring of protective walls is too simple, resulting in poor fixing effect and susceptibility to the flow of concrete. After the protective wall is poured and formed, bolts often become misaligned. As a result, when installing the guardrails, workers need to use tools to correct the pre-embedded bolts to align them with the holes in the base plate, making the process cumbersome, increasing labor intensity, and reducing the efficiency of guardrail installation.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this application is to provide a positioning device for pre-embedded bolts in high-speed railway railings, so as to solve or alleviate the problem that the traditional positioning method for pre-embedded bolts has poor fixing effect and is easily affected by concrete flow and deflection.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] This application provides a positioning device for pre-embedded bolts of high-speed railway guardrails, comprising: a partition box centrally located in the pouring groove of the protective wall, the bottom of the partition box having a positioning hole, the top of the partition plate corresponding to the templates on both sides of the pouring groove on the partition box being bent outward to a horizontal shape to form a wing plate, the wing plate being placed on the top of the adjacent template, the top of the template having a positioning element; a positioning arm being horizontally positioned at the top of the partition box and centered along the width direction of the pouring groove, the upper surface of the wing plate having a guide tube centrally located, the end of the positioning arm passing through the corresponding guide tube and connecting to the positioning element to limit the tilting or displacement of the partition box.

[0008] Preferably, the partition box is narrow at the bottom and wide at the top, so that the bottom of the partition box is surrounded by concrete.

[0009] Preferably, the positioning element consists of a pair of spaced-apart vertical plates;

[0010] The end of the positioning arm passes through the gap between the two vertical plates and is connected in series with the two vertical plates by a pin.

[0011] Preferably, the end width of the positioning arm is consistent with the spacing width between the two vertical plates.

[0012] Preferably, the positioning arm includes: an adjusting rod and a sleeve, wherein the adjusting rod has a gripping section in the middle and the sleeve is threaded onto both ends of the adjusting rod;

[0013] The diameter of the grip section of the adjusting rod is larger than the diameter of its threaded section.

[0014] Preferably, the threads at both ends of the adjusting rod are in opposite directions, so that rotating the adjusting rod causes the sleeves at both ends to move synchronously in opposite directions along the axial direction.

[0015] Preferably, both the outer shape of the sleeve and the lumen of the guide tube are rectangular;

[0016] The sleeve has a limit block protruding from the top or bottom of the end away from the adjusting rod.

[0017] Preferably, both ends of the grip section of the adjusting rod are fitted with limit rings;

[0018] Both of the aforementioned limiting rings have a positioning rod extending vertically downwards from their bottoms.

[0019] Preferably, the bottom of the compartment is provided with a calibration seat that protrudes upwards and corresponds to the positioning rod;

[0020] The lower end of the positioning rod is inserted into the corresponding calibration seat.

[0021] Preferably, four positioning holes are provided along the rectangular direction.

[0022] Compared with the closest prior art, the technical solution of this application has the following beneficial effects:

[0023] This application can accurately position the embedded bolts during the pouring of the protective wall and ensure the stability of the embedded bolts, ensuring that the embedded bolts will not be deflected due to the flow of concrete, thereby simplifying the overall process and improving the installation efficiency of the railing. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein:

[0025] Figure 1 This is an overall schematic diagram of the actual application of this application;

[0026] Figure 2 This is a schematic diagram of the overall structure of this application;

[0027] Figure 3This is a schematic diagram of the front view of this application;

[0028] Figure 4 This is an overall schematic diagram of the partition structure of this application;

[0029] Figure 5 This is a schematic diagram of the overall positioning arm structure of this application.

[0030] In the diagram: 1. Divider box; 2. Positioning hole; 3. Wing plate; 4. Guide tube; 5. Vertical plate; 6. Pin; 7. Adjusting rod; 8. Sleeve; 9. Limiting block; 10. Limiting ring; 11. Positioning rod; 12. Calibration seat. Detailed Implementation

[0031] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0032] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0034] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0035] Example 1: This example aims to provide a positioning device for pre-embedded bolts in high-speed railway railings. Its main function is to ensure the stability of the pre-embedded bolts during the pouring of the protective wall, ensuring that they will not deviate during the process, so as to avoid the need for labor to correct the bolts later.

[0036] Reference Figures 1-4 The system includes: a partition box 1 and a positioning arm. The partition box 1 is centrally located in the pouring trench of the protective wall. The bottom of the partition box 1 is provided with positioning holes 2. There are four positioning holes 2 in a rectangular direction so that the ends of a pair of U-shaped pre-embedded bolts can pass through the positioning holes 2 from bottom to top, and the connecting ends of the pre-embedded bolts are exposed in the cavity of the partition box 1. The vertical displacement direction of the pre-embedded bolts is restricted by the threaded nuts. As long as the partition box 1 is stable, the position of the pre-embedded bolts will remain unchanged. The partition box 1 is narrow at the bottom and wide at the top so that the concrete surrounds the bottom of the partition box 1. The top of the partition plate on the partition box 1 corresponding to the templates on both sides of the pouring trench is bent outward to form a horizontal shape to form a wing plate 3. The wing plate 3 is placed on the top of the adjacent template. The setting of the wing plate 3 can pre-position the partition box 1 stably in the pouring trench, so that the partition box 1 is not easy to tip over or shake. There are positioning components on the top of the templates on both sides of the pouring trench. The positioning components are composed of a pair of spaced vertical plates 5. The bottom of the vertical plates 5 is welded to the top of the template.

[0037] The positioning arm is horizontally positioned at the top and center of the partition box 1 along the width of the casting groove. A guide tube 4 is welded to the center of the upper plate surface of the wing plate 3. The end of the positioning arm passes through the corresponding guide tube 4 and is connected to the positioning component to limit the tilt or displacement of the partition box 1. That is, the end of the positioning arm passes through the gap between the two corresponding vertical plates 5 and is connected in series with the two vertical plates 5 by a pin 6. The end of the positioning arm and the surface of the vertical plate 5 are provided with through holes of the same height and the same specifications for the pin 6 to be inserted. The through hole is not shown in the figure. One end of the pin 6 is upset to prevent it from falling out of the through hole, and the other end of the pin 6 is tapered to allow it to pass through the through hole quickly.

[0038] In this embodiment, the width of the end of the positioning arm must be consistent with the spacing between the two vertical plates 5, so that the end of the positioning arm can remain stable and not move, thereby ensuring the stability of the partition box 1.

[0039] In this embodiment, the partition box 1 allows the top of the cast protective wall to form a groove platform, and the pre-embedded bolt connection end is exposed in the groove platform. The groove platform can be used to place the base plate of the railing, so that the holes on the surface of the railing base plate are placed in accordance with the connection end of the pre-embedded bolt. The railing base plate in the groove platform has stronger stability.

[0040] In this embodiment, the positioning arm makes it easier for staff to carry the compartment 1.

[0041] The pre-embedded bolt positioning device provided in this embodiment can accurately position the pre-embedded bolts during the pouring of the protective wall and ensure the stability of the pre-embedded bolts. It ensures that the pre-embedded bolts will not be deflected due to the flow of concrete, thereby simplifying the overall process and improving the installation efficiency of the railing.

[0042] Example 2 aims to further improve the versatility of this application, making it applicable to casting channels of varying widths. Specifically, refer to... Figures 1-5 The positioning arm includes an adjusting rod 7 and sleeves 8. The adjusting rod 7 has a rectangular gripping section in its middle for controlling its rotation. Both ends of the adjusting rod 7 are threaded with sleeves 8. The diameter of the gripping section of the adjusting rod 7 is larger than the diameter of its threaded section. The threads at both ends of the adjusting rod 7 are in opposite directions, allowing rotation of the adjusting rod 7 to cause the sleeves 8 at both ends to move synchronously and in opposite directions along the axial direction within the guide tube 4. This changes the length of the positioning arm, allowing it to adapt to different widths of pouring grooves within a certain range. It ensures that the end of the positioning arm can connect with the positioning components on the top of the templates on both sides of the pouring groove. Both the sleeve 8 and the guide tube 4 have rectangular cavities, and the sleeve 8 and the guide tube 4 are perfectly matched to ensure that when the adjusting rod 7 is rotated, the sleeves 8 at both ends will not rotate with it. The wing plate 3 cooperates with the positioning arm. Since the wing plate 3 extends horizontally, it widens the width of the partition box 1. The widened range of the partition box 1 is to adapt to different widths of the pouring trough within a certain range. When facing pouring troughs of different widths, as long as the partition box 1 is centered, it can also ensure that the two wing plates 3 on both sides of the partition box 1 can be placed on the two side templates of the pouring trough to prevent the partition box 1 from tilting or shaking.

[0043] In this embodiment, a limiting block 9 protrudes from the top or bottom of the end of the sleeve 8 away from the adjusting rod 7. The thickness of the limiting block 9 will not exceed the thickness of the wing plate 3. The limiting block 9 is provided to prevent the positioning arm from detaching from the guide tube 4 when carrying this device.

[0044] Example 3 aims to quickly center the positioning arm during the initial assembly of the positioning arm and the spacer 1 to calibrate its position. Specifically, refer to... Figures 2-5 Both ends of the grip section of the adjusting rod 7 are fitted with limiting rings 10. The limiting rings 10 are sleeved on the outside of the threaded section of the adjusting rod 7. The bottom of the two limiting rings 10 has a positioning rod 11 extending vertically downward. The bottom of the cavity of the partition box 1 is welded with an upward protruding calibration seat 12 that corresponds to the positioning rod 11, so that the lower end of the positioning rod 11 is inserted into the corresponding calibration seat 12.

[0045] As can be seen from this embodiment in conjunction with Embodiment 2, the positioning arm can be removed from the compartment 1 by simply rotating the adjusting rod 7 to move the sleeves 8 at both ends away from each other and disengage them. The limiting ring 10 and the positioning rod 11 can also be removed from the adjusting rod 7 of the positioning arm along the axial direction. After the positioning arm is removed, multiple compartments 1 can be stacked together. Because of the presence of the calibration seat 12, the bottom of the compartment 1 in the stacked state can reserve space for placing the positioning arm, the limiting ring 10 and the positioning rod 11. Therefore, this device is very convenient to carry multiple compartments at the same time. In actual working scenarios, it is indeed necessary to set a pre-embedded bolt positioning device at intervals. The use of a large number of compartments makes it convenient to carry and move, which is a good effect.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-speed railway railing embedded bolt positioning device, characterized in that, include: The partition box is centrally located in the pouring groove of the protective wall. The bottom of the partition box is provided with positioning holes. The top of the partition plate on the partition box corresponding to the templates on both sides of the pouring groove is bent outward to form a horizontal shape to form a wing plate. The wing plate is placed on the top of the adjacent template. The top of the template is provided with positioning parts. The positioning arm is horizontally positioned at the top and center of the partition box along the width of the casting groove. A guide tube is provided in the center of the upper surface of the wing plate. The end of the positioning arm passes through the corresponding guide tube and is connected to the positioning component to limit the tilting or displacement of the partition box.

2. The high-speed railway balustrade pre-buried bolt positioning device according to claim 1, characterized in that, The partition box is narrow at the bottom and wide at the top, so that the bottom of the partition box is surrounded by concrete.

3. The high-speed railway balustrade pre-buried bolt positioning device according to claim 1, characterized in that, The positioning element consists of a pair of spaced vertical plates; The end of the positioning arm passes through the gap between the two vertical plates and is connected in series with the two vertical plates by a pin.

4. The high-speed railway balustrade pre-buried bolt positioning device according to claim 3, characterized in that, The width of the end of the positioning arm is the same as the spacing between the two vertical plates.

5. The high-speed railway balustrade pre-buried bolt positioning device according to claim 1, characterized in that, The positioning arm includes an adjusting rod and a sleeve. The adjusting rod has a gripping section in the middle, and the sleeve is threaded onto both ends of the adjusting rod. The diameter of the grip section of the adjusting rod is larger than the diameter of its threaded section.

6. The high-speed railway balustrade pre-buried bolt positioning device according to claim 5, characterized in that, The two ends of the adjusting rod have opposite thread directions, so that rotating the adjusting rod causes the sleeves at both ends to move synchronously in opposite directions along the axial direction.

7. The high-speed railway balustrade pre-buried bolt positioning device according to claim 6, characterized in that, Both the outer shape of the sleeve and the cavity of the guide tube are rectangular; The sleeve has a limit block protruding from the top or bottom of the end away from the adjusting rod.

8. The high-speed railway balustrade pre-buried bolt positioning device according to claim 5, characterized in that, Limiting rings are fitted to both ends of the grip section of the adjusting rod; Both of the aforementioned limiting rings have a positioning rod extending vertically downwards from their bottoms.

9. The high-speed railway balustrade pre-buried bolt positioning device according to claim 8, characterized in that, The bottom of the compartment is provided with a calibration seat that protrudes upwards and corresponds to the positioning rod; The lower end of the positioning rod is inserted into the corresponding calibration seat.

10. The high-speed railway balustrade pre-buried bolt positioning device according to claim 1, characterized in that, The positioning holes are provided in four directions along the rectangular axis.