A protective device for bridge railing construction

Abstract

This application discloses a protective device for bridge railing construction. At least two bases are fixedly connected to the installation surface of the railing body and are spaced apart along the laying direction of the railing body. Multiple limiting sleeves are vertically mounted on corresponding bases. One end of multiple posts extends into the interior of the corresponding limiting sleeve and abuts against the top surface of the base, while the other end extends vertically, moving towards or away from the base along the axial length of the limiting sleeve. Both ends of a telescopic rod are fixedly connected to the ends of adjacent posts away from the base. The first end of a rope is slidably disposed around the periphery of the telescopic rod, and its tail end moves towards the side where the railing body is located. In this application, the bases and limiting sleeves are pre-fixed to the bridge deck, and the height of the posts can be adjusted after insertion to adapt to different construction needs. The telescopic rod connects the posts laterally to form a rigid frame, while the sliding rope provides flexible protection and dynamic buffering upon impact. The entire device achieves tool-free installation, precise adjustment, and stable protection, significantly reducing the risks of high-altitude construction.

Description

Technical Field

[0001] This application relates to the field of bridge construction technology, and in particular to a protective device for bridge railing construction. Background Technology

[0002] A bridge is generally a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also come to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient.

[0003] During construction work on the bridge deck, because the bridge was still under construction and no protective devices had been installed, a worker fell from the bridge deck, resulting in a safety accident. However, the existing bridge deck protective devices are not convenient to install, cannot be installed quickly, and the installation process is quite complicated.

[0004] Therefore, there is an urgent need for a protective device for bridge railing construction to solve the above problems. Utility Model Content

[0005] This application provides a protective device for bridge railing construction, which aims to prevent safety accidents during construction and is easy to disassemble and install in the construction environment.

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

[0007] A protective device for bridge railing construction includes at least two bases, multiple limiting sleeves, multiple columns, telescopic rods, and multiple ropes;

[0008] At least two of the bases are fixedly connected to the mounting base surface of the guardrail body and are spaced apart along the laying direction of the guardrail body;

[0009] Multiple limiting sleeves are vertically disposed on the corresponding bases;

[0010] One end of each of the columns extends into the interior of the corresponding limiting sleeve and abuts against the top surface of the base, while the other end extends vertically and moves toward or away from the base along the axial length of the limiting sleeve.

[0011] Both ends of the telescopic rod are fixedly connected to the adjacent end of the column away from the base;

[0012] The first end of the rope is slidably disposed around the periphery of the telescopic pole, and its tail end is close to the side where the guardrail body is located.

[0013] Furthermore, a gear is rotatably provided at the end of the limiting sleeve away from the base, the axial length direction of the gear is perpendicular to the axial length direction of the limiting sleeve, and a tooth groove is fixedly provided on the side of the column near the gear along its length direction, and a portion of the circumferential surface of the gear meshes with the inner wall of the tooth groove.

[0014] Furthermore, the telescopic rod includes multiple sections connected in series, with the ends of adjacent sections having an interference fit, and the periphery of each section slidingly contacting one end of the rope.

[0015] Furthermore, a through hole is provided at a section of the rope near its head end, and the through hole is engaged with the head end of the rope.

[0016] Furthermore, a check block extends radially from the inner wall of the through hole, and a check plate extends axially from the top of the check block along the through hole. The check plate engages with the periphery of the beginning of the rope.

[0017] Furthermore, the head end of the rope is flat, and a groove is provided on the side of the head end of the rope near its tail end. The width of the groove is greater than the width of the check block. A limiting block extends from the bottom of the groove to the opening of the groove. The side of the limiting block abuts against the side of the check block and the bottom end face of the check plate.

[0018] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0019] In this application, the base serves as the bottom support for the entire protective device. It is fixedly connected to the bridge deck (the base surface for guardrail installation) and is spaced apart along the guardrail laying direction to form multiple anchor points to distribute the force. A limiting sleeve is vertically fixed to the base, constraining the column to slide axially (vertically) within the limiting sleeve, allowing the column height to be adjusted to accommodate different construction needs (height differences of construction workers, uneven bridge decks, etc.). The base and limiting sleeve can be pre-fixed during installation, and then the column can be inserted to complete the main structure of the protective device, reducing on-site assembly time. The two ends of the telescopic pole are laterally connected to adjacent columns to form a protective frame. The first end of the rope is slidably connected to the telescopic pole, and its tail end is connected to a safety buckle suitable for the worker. When personnel approach the edge of the guardrail, the rope forms a flexible barrier to prevent accidents during construction. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the assembled state provided in the embodiments of this application;

[0022] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle;

[0023] Figure 3 for Figure 1 A cross-sectional view of region AA in area B;

[0024] Figure 4 This is a schematic diagram of the structure of the rope head provided in an embodiment of this application.

[0025] Icons: 10-Base; 11-Limit sleeve; 12-Column; 121-Groove; 13-Telescopic rod; 131-Section rod; 14-Rope; 141-Through hole; 142-Check block; 143-Check plate; 144-Slide groove; 145-Limit block; 15-Gear. Detailed Implementation

[0026] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0028] Combination Figures 1-4 As shown, a protective device for bridge railing construction is characterized by comprising at least two bases 10, multiple limiting sleeves 11, multiple posts 12, telescopic rods 13, and multiple ropes 14; at least two bases 10 are fixedly connected to the mounting base surface of the railing body and are spaced apart along the laying direction of the railing body; multiple limiting sleeves 11 are vertically arranged on the corresponding bases 10; one end of each post 12 extends into the interior of the corresponding limiting sleeve 11 and abuts against the top surface of the base 10, and the other end extends vertically, moving closer to or away from the base 10 along the axial length direction of the limiting sleeve 11; both ends of the telescopic rod 13 are fixedly connected to the ends of adjacent posts 12 away from the base 10; the first end of each rope 14 is slidably disposed around the periphery of the telescopic rod 13, and the last end moves closer to the side where the railing body is located.

[0029] In the above scheme, the base 10 serves as the bottom support of the entire protective device. It is fixedly connected to the bridge deck (the base surface for guardrail installation) and is spaced apart along the guardrail laying direction to form multiple anchor points to distribute the force. The limiting sleeve 11 is vertically fixed on the base 10, constraining the column 12 to slide axially (vertically) within the limiting sleeve 11, allowing the height of the column 12 to be adjusted to meet different construction needs (height differences of construction workers, uneven bridge decks, etc.). When installing the base 10 and the limiting sleeve 11, they can be pre-fixed, and then the column 12 can be inserted to complete the main structure of the protective device, reducing on-site assembly time. The two ends of the telescopic rod 13 are horizontally connected to adjacent columns 12 to form a protective frame. The first end of the rope 14 is slidably connected to the telescopic rod 13, and its tail end is connected to a safety buckle suitable for the worker. When personnel approach the edge of the guardrail, the rope 14 forms a flexible barrier to prevent safety accidents during construction.

[0030] A gear 15 is rotatably mounted on the end of the limiting sleeve 11 away from the base 10. The axial length direction of the gear 15 is perpendicular to the axial length direction of the limiting sleeve 11. A tooth groove 121 is fixedly mounted on the side of the column 12 near the gear 15 along its length direction. Part of the circumferential surface of the gear 15 meshes with the inner wall of the tooth groove 121.

[0031] In the above scheme, the upper end of the limiting sleeve 11 (the end away from the base 10) is rotatably mounted with a gear 15 via a bearing. The axis of the gear 15 is perpendicular to the axis of the limiting sleeve 11 (i.e., the gear 15 rotates horizontally). A longitudinal toothed groove 121 is machined along the length of one side of the column 12. After being inserted into the limiting sleeve 11, the toothed groove 121 meshes with the teeth of the gear 15, forming a gear 15-rack transmission pair. It is feasible for workers to manually or with tools (such as a hand crank) drive the gear 15 to rotate. When the gear 15 rotates, it meshes with the toothed groove 121 of the column 12, pushing the column 12 to move axially (up or down) along the limiting sleeve 11. This allows the horizontal height of the telescopic rod 13 in space to be adjusted according to the height difference of the workers during bridge railing pouring construction, and it is suitable for different construction environments (uneven bridge surfaces).

[0032] The telescopic pole 13 includes multiple pole sections 131, which are connected in series and adjacent pole sections 131 are interference-fitted at both ends. The periphery of the pole section 131 is in sliding contact with one end of the rope 14.

[0033] In this application, the telescopic rod 13 is composed of multiple sections 131 (metal or high-strength composite material tubes) connected end to end. Adjacent sections 131 are connected by an interference fit, that is, the outer diameter of the later section 131 is larger than the inner diameter of the earlier section 131 (or a tight fit is achieved through a tapered structure). The radial pressure is generated by elastic deformation, so that the two sections 131 are tightly nested without the need for additional fasteners (such as bolts or pins), thus reducing the labor intensity of workers.

[0034] A through hole 141 is provided on a section of the rope 14 near its head end, and the through hole 141 is engaged with the head end of the rope 14.

[0035] In the above scheme, when installing the rope 14, simply pass the first end of the rope 14 back through the through hole 141 opened near its first end to complete the quick installation between the rope 14 and the telescopic rod 13.

[0036] A check block 142 extends radially from the inner wall of the through hole 141, and a check plate 143 extends axially from the top of the check block 142 along the through hole 141. The check plate 143 is engaged with the periphery of the beginning of the rope 14.

[0037] In the above scheme, the check block 142 is designed to cooperate with the section of the rope 14 near its head to constrain the displacement of the head of the rope 14 in the X direction, ensuring a stable connection between the rope 14 and the telescopic rod 13. The check plate 143 is designed to limit the displacement of the section of the rope 14 near its head in the Y direction, preventing the head of the rope 14 from slipping out of the through hole 141 when it slides on the telescopic rod 13, thereby avoiding safety accidents during construction.

[0038] The head end of the rope 14 is flat, and a groove 144 is provided on the side of the head end of the rope 14 near its tail end. The width of the groove 144 is greater than the width of the check block 142. A limiting block 145 extends from the bottom of the groove to the opening of the groove 144. The side of the limiting block 145 abuts against the side of the check block 142 and the bottom end face of the check plate 143.

[0039] In the above scheme, the chute 144 is designed to confine the check block 142 within the chute cavity, preventing the check block 142 from detaching from the first section of the rope 14. The inner end face of the limiting block 145 abuts against the check plate 143, further restricting the displacement of the first end of the rope 14 in the X direction within the through hole 141, ensuring that the first end of the rope 14 can be stably connected to the telescopic rod 13 after passing through the through hole 141, thereby preventing the risk of construction workers falling from the bridge deck.

[0040] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0041] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A protective device for bridge railing construction, characterized in that, It includes at least two bases (10), multiple limiting sleeves (11), multiple columns (12), telescopic rods (13) and multiple ropes (14); At least two of the bases (10) are fixedly connected to the mounting base surface of the guardrail body and are spaced apart along the laying direction of the guardrail body; Multiple limiting sleeves (11) are vertically arranged on the corresponding bases (10); One end of each of the columns (12) extends into the interior of the corresponding limiting sleeve (11) and abuts against the top surface of the base (10), while the other end extends vertically and moves toward or away from the base (10) along the axial length of the limiting sleeve (11). The two ends of the telescopic rod (13) are respectively fixedly connected to the end of the adjacent column (12) away from the base (10); The first end of the rope (14) is slidably disposed around the periphery of the telescopic rod (13), and its tail end is close to the side where the guardrail body is located.

2. The bridge guardrail construction protection device according to claim 1, characterized by A gear (15) is rotatably provided at one end of the limiting sleeve (11) away from the base (10). The axial length direction of the gear (15) is perpendicular to the axial length direction of the limiting sleeve (11). A tooth groove (121) is fixedly provided on one side of the column (12) near the gear (15) along its length direction. A portion of the circumferential surface of the gear (15) meshes with the inner wall of the tooth groove (121).

3. The bridge guardrail construction protection device according to claim 1, characterized by The telescopic rod (13) includes multiple sections (131), which are connected in series and adjacent sections (131) are interference-fitted at both ends. The periphery of the section (131) is in sliding contact with one end of the rope (14).

4. The bridge guardrail construction protection device according to claim 1, characterized by The rope (14) has a through hole (141) near its head end, and the through hole (141) is engaged with the head end of the rope (14).

5. The protective device for bridge railing construction according to claim 4, characterized in that, The through hole (141) has a check block (142) extending radially from its inner wall, and a check plate (143) extending axially from the top of the check block (142) along the through hole (141), the check plate (143) engaging with the periphery of the beginning of the rope (14).

6. The bridge guardrail construction protection device according to claim 5, wherein The head end of the rope (14) is flat, and a groove (144) is provided on the side of the head end of the rope (14) near its tail end. The width of the groove (144) is greater than the width of the check block (142). A limiting block (145) extends from the bottom to the opening of the groove (144). The side of the limiting block (145) abuts against the side of the check block (142) and the bottom end face of the check plate (143).

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