Safety guardrail for highway bent cap construction

Abstract

The utility model discloses a safety guardrail for highway capping beam construction, which is characterized in that fixed vertical rods are sequentially arranged at intervals along the length direction of a capping beam, at least two mounting and fixing structures are arranged on the fixed vertical rods along the length direction, and mounting mechanisms are detachably arranged on the mounting and fixing structures; the mounting mechanism comprises a fixing assembly and a connecting assembly connected with the fixing assembly, the connecting assembly is provided with a first connecting structure and a second connecting structure, the protective cross rod can be fixedly connected with the first connecting structure, one end of the fixing pull rod is provided with a pull rod mounting piece, and the pull rod mounting piece is detachably fixed to the second connecting structure. A pull rod fixing piece is arranged at the other end of the fixed pull rod and can be fixedly installed on the cover beam. According to the safety guardrail for highway bent cap construction, the fixing assemblies are detachably installed on the fixing vertical rods, and then the protective transverse rods can be installed on the connecting assemblies, so that installation and detachment are convenient, and the guardrail installation and detachment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cap beam construction, in particular to a safety guardrail for highway cap beam construction. Background Art

[0002] The cap beam is an important component used in bridge structures. Its main function is to support, distribute and transfer the load of the superstructure to ensure that these loads can be effectively transferred to the lower structure, such as piers or pile foundations. During the construction of the cap beam, construction workers climb to the top of the cap beam. There are no safety protection devices around the top of the cap beam. When construction workers are working on it, they face the risk of falling from a height if they make a mistake. There have always been hidden dangers in construction safety, which may cause great harm to construction workers and even cause casualties.

[0003] For example, the utility model patent application with authorization announcement number CN113481872A and name "A structure and construction method for a safety guardrail on a cap beam" includes a safety guardrail base, a fixing pipe, a fixing device and a guardrail frame. The safety guardrail base is formed by connecting a plurality of angle fixings. A fixing pipe is vertically connected to the outer side of a bottom surface of the angle fixing. The fixing pipe is perpendicular to the line where the corner of the angle fixing is located. The guardrail frame includes guardrail uprights. The guardrail uprights are inserted into the fixing pipes. A plurality of embedded steel bars are provided on the cap beam. The inner wall of the angle fixing is also fixedly connected to a fixing device. The fixing device is provided with an installation portion on a side close to the embedded steel bars, and the installation portion is fixed to the embedded steel bars. The guardrails on the existing cap beam require embedded steel bars to be vertically buried inwardly from the concrete edges on both sides of the cap beam, and are connected to form a safety guardrail base through multiple angle fixings. A fixing pipe is vertically connected to the outside of one side of the angle fixing of the safety guardrail base, and a fixing device is installed inside the angle fixing. A mounting portion is connected to the side of the fixing device close to the embedded steel bars. The mounting portion is used to connect and fix to the embedded steel bars to achieve the connection between the safety guardrail base and the guardrail frame and the embedded steel bars. Since the guardrails on the cap beam need to be disassembled after construction is completed, the installation and disassembly of the existing guardrails are complicated, affecting construction efficiency. Utility Model Content

[0004] The utility model aims to provide a safety guardrail for highway cap beam construction to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A safety guardrail for highway cap beam construction, comprising:

[0007] A fixed upright, wherein the fixed upright is sequentially arranged at intervals along the length direction of the cap beam, and the fixed upright is provided with at least two mounting and fixing structures along the length direction, and the mounting and fixing structures are detachably provided with a mounting mechanism, and the mounting mechanism includes a fixing assembly and a connecting assembly connected to the fixing assembly, and the connecting assembly is provided with a fixing member that can be fixedly connected to the edge of the cap beam, and the connecting assembly is provided with a first connecting structure and a second connecting structure;

[0008] A protective cross bar, wherein both ends of the protective cross bar are provided with connecting members, and the connecting members can be fixedly connected to the first connecting structure;

[0009] A fixed pull rod, one end of which is provided with a pull rod mounting piece, and the pull rod mounting piece can be detachably fixed on the second connecting structure; the other end of the fixed pull rod is provided with a pull rod fixing piece, and the pull rod fixing piece can be fixedly mounted on the cap beam.

[0010] The above-mentioned safety guardrail for highway cap beam construction, each of the installation and fixing structures includes four fixing holes, and the four fixing holes are arranged in sequence and at intervals along the circumference of the fixed upright.

[0011] The above-mentioned safety guardrail for highway cap beam construction, the connecting assembly includes a columnar connecting seat, a mounting through hole corresponding to the size of the fixed upright is arranged inside the columnar connecting seat, the first connecting structure includes a first connecting screw hole arranged on the side of the columnar connecting seat, and the second connecting structure includes a second connecting screw hole arranged on the side wall of the columnar connecting seat.

[0012] In the above-mentioned safety guardrail for highway cap beam construction, the pull rod mounting member includes a mounting block, and the mounting block can be mounted on the second connecting screw hole.

[0013] The above-mentioned safety guardrail for highway cap beam construction, the fixing assembly includes an upper annular seat and a lower annular seat, the upper annular seat is fixedly mounted on the bottom of the columnar connecting seat, the lower annular seat is provided with an annular side plate, the upper annular seat is fixedly mounted on the annular side plate to form an annular mounting cavity.

[0014] The above-mentioned safety guardrail for highway cap beam construction, the fixing assembly also includes an annular rotating plate and a plurality of strip locking members installed in the annular mounting cavity, the upper annular seat is provided with a mounting portion for installing the strip locking members, the annular rotating plate is transmission-connected with the plurality of strip locking members, the rotation of the annular rotating plate can correspondingly drive the strip locking members to move radially along the upper annular seat.

[0015] The above-mentioned safety guardrail for highway cap beam construction, the strip-shaped locking piece includes a moving bar and a locking bar, the locking bar is fixedly installed on the moving bar, the top and bottom of the moving bar are respectively provided with an upper moving column and a lower moving column, the mounting portion includes a first radial groove and a radial opening groove, the upper moving column is slidably restricted on the first radial groove, and the locking bar is slidably restricted in the radial opening groove.

[0016] The above-mentioned safety guardrail for highway cap beam construction has an arc-shaped driving groove on the rotating plate. Along the circumference of the rotating plate, the distance between the arc-shaped driving groove and the center of the rotating plate gradually changes, and the lower moving column is slidably restricted in the arc-shaped driving groove.

[0017] The above-mentioned safety guardrail for highway cap beam construction has two arc-shaped openings correspondingly arranged on the annular side plate, and arc-shaped driving blocks are arranged on opposite sides of the rotating plate, and the arc-shaped driving blocks are located in the arc-shaped openings.

[0018] In the above technical scheme, the utility model provides a safety guardrail for highway cap beam construction, including fixed vertical poles, protective cross bars and fixed pull rods. The fixed vertical poles are arranged in sequence along the length direction of the cap beam. The fixed vertical poles are provided with at least two mounting and fixing structures along the length direction. The fixed mounting structure is detachably provided with a mounting mechanism. The mounting mechanism includes a fixed assembly and a connecting assembly connected to the fixed assembly. By arranging a fixed pull rod on the fixed vertical pole, the installation strength of the fixed vertical pole can be improved, and the fixed assembly can be detachably installed on the fixed vertical pole, and then the protective cross bar can be installed on the connecting assembly, which facilitates installation and disassembly and improves the efficiency of guardrail installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the structure of a safety guardrail for highway cap beam construction provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the installation of a safety guardrail for highway cap beam construction provided by an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the installation of the installation mechanism and the fixed pole provided in the embodiment of the utility model;

[0023] Figure 4A schematic diagram of the structure of the installation mechanism provided by the embodiment of the utility model;

[0024] Figure 5 A schematic diagram of the structure of a cylindrical connecting seat provided in an embodiment of the utility model;

[0025] Figure 6 A schematic diagram of the structure of a fixing assembly provided in an embodiment of the utility model;

[0026] Figure 7 A schematic diagram of the installation of a strip-shaped locking member provided in an embodiment of the utility model;

[0027] Figure 8 A schematic diagram of the structure of the upper annular seat provided in an embodiment of the utility model;

[0028] Fig. 9 A schematic structural diagram of a rotating plate provided in an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. Fixing the vertical pole; 11. Installing the fixing structure; 12. Fixing hole; 2. Installing mechanism; 21. Fixing assembly; 22. Upper annular seat; 221. First radial groove; 222. Radial opening groove; 23. Lower annular seat; 231. Annular side plate; 232. Arc opening; 24. Rotating plate; 241. Arc driving groove; 242. Arc driving block; 243. Radial section; 244. Positioning section; 3. Connecting assembly; 31. Columnar connecting seat; 32. Installing through hole; 33. First connecting screw hole; 34. Second connecting screw hole; 35. Annular mounting cavity; 36. Bar locking piece; 361. Moving bar; 362. Locking bar; 363. Lower moving column; 364. Upper moving column; 37. Side mounting part; 4. Protective cross bar; 5. Fixing pull rod; 51. Pull rod mounting piece; 510. Mounting block; 52. Pull rod fixing piece; 6. Cap beam. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] like Figure 1-9As shown, the utility model provides a safety guardrail for highway cap beam construction, including a fixed upright pole 1, a protective cross bar 4 and a fixed pull rod 5. The fixed upright pole 1 is arranged in sequence along the length direction of the cap beam 6. The fixed upright pole 1 is provided with at least two mounting and fixing structures 11 along the length direction. The mounting and fixing structure 11 is detachably provided with a mounting mechanism 2. The mounting mechanism 2 includes a fixing assembly 21 and a connecting assembly 3 connected to the fixing assembly 21. The fixing assembly 21 is provided with a fixing member that can be fixedly connected to the edge of the cap beam 6. The fixing assembly 21 can be locked and installed in the fixing hole 12. The connecting assembly 3 is provided with a first connecting structure and a second connecting structure. Connecting members are provided at both ends of the protective cross bar 4, and the connecting member can be fixedly connected to the first connecting structure. A pull rod mounting piece 51 is provided at one end of the fixed pull rod 5, and the pull rod mounting piece 51 is detachably fixed to the second connecting structure. The other end of the fixed pull rod 5 is provided with a pull rod fixing piece 52, and the pull rod fixing piece 52 can be fixedly installed on the cap beam 6.

[0033] Specifically, the fixed pole 1 is fixedly arranged in the vertical direction, and there are multiple fixed poles 1. The multiple fixed poles 1 are arranged in sequence and spaced apart along the length direction of the cap beam 6, and the fixed poles 1 are arranged at the edge of the cap beam 6. The mounting and fixing structures 11 on the fixed pole 1 can be two, three or more. An mounting and fixing structure 11 is arranged at the bottom of the fixed pole 1. Optionally, an mounting and fixing structure 11 is also arranged at the top of the fixed pole 1, and at least one mounting and fixing structure 11 is also arranged between the top and the bottom of the fixed pole 1. The mounting and fixing structure 11 is detachably provided with a mounting mechanism 2, and the mounting mechanism 2 has two effects. The mounting mechanism 2 can be fixedly installed on the cap beam 6. When the mounting mechanism 2 is fixedly installed on the fixed pole 1, the protective cross bar 4 can also be fixedly installed on the mounting mechanism 2. In this way, the fixed connection between the fixed pole 1 and the protective cross bar 4 can be achieved through the mounting mechanism 2.

[0034] In this embodiment, the mounting mechanism 2 includes a fixing component 21 and a connecting component 3. The fixing component 21 is detachably mounted on the fixed upright pole 1. The connecting component 3 is fixedly connected to the fixing component 21. At the same time, a fixing member is arranged on the connecting component 3. The fixing member can be connected to the edge of the cap beam 6 to fix the fixed upright pole 1. A first connecting structure and a second connecting structure are arranged on the connecting component 3. The first connecting structure is arranged corresponding to the protective cross bar 4, and the second connecting structure is arranged corresponding to the fixed pull rod 5. There is at least one first connecting structure on each connecting component 3, and it can also be two. The opposite ends of the protective cross bar 4 are arranged There is a connecting member corresponding to the first connecting structure, and a detachable fixed connection is achieved with the connecting member and the first connecting structure, so that the protective cross bar 4 and the fixed vertical pole 1 are detachably fixedly connected, and a tie rod mounting member 51 is provided at one end of the fixed pull rod 5, and a tie rod fixing member 52 is provided at the other end. The tie rod mounting member 51 is provided corresponding to the second connecting structure, and the tie rod mounting member 51 can be detachably fixedly installed on the second connecting structure, and the tie rod fixing member 52 can be fixedly installed on the cap beam 6, and an acute angle is formed between the fixed pull rod 5 and the fixed vertical pole 1, so as to fix the fixed vertical pole 1 and improve the fixing strength of the fixed vertical pole 1.

[0035] The utility model provides a safety guardrail for highway cap beam construction, comprising a fixed upright pole 1, a protective cross bar 4 and a fixed pull rod 5. The fixed upright pole 1 is arranged in sequence along the length direction of the cap beam 6. At least two mounting fixing structures 11 are arranged along the length direction of the fixed upright pole 1. A mounting mechanism 2 is detachably arranged on the fixed mounting structure. The mounting mechanism 2 comprises a fixed component 21 and a connecting component 3 connected to the fixed component 21. By arranging the fixed pull rod 5 on the fixed upright pole 1, the mounting strength of the fixed upright pole 1 can be improved, and the fixed component 21 can be detachably installed on the fixed upright pole 1, and then the protective cross bar 4 can be installed on the connecting component 3, which is convenient for installation and disassembly, and improves the efficiency of guardrail installation and disassembly.

[0036] In this embodiment, preferably, the number of mounting and fixing structures 11 on each fixed pole 1 may be two, three or more, and each mounting and fixing structure 11 includes four fixing holes 12, which are arranged in sequence and spaced apart along the circumference of the fixed pole 1; and each fixing hole 12 is arranged along the radial direction of the fixed pole 1.

[0037] In this embodiment, preferably, the connecting component 3 includes a cylindrical connecting seat 31, and a mounting through hole 32 corresponding to the size of the fixed upright 1 is arranged inside the cylindrical connecting seat 31, and the mounting through hole 32 passes through the cylindrical connecting seat 31, and the size of the mounting through hole 32 is consistent with the size of the fixed upright, the first connecting structure includes a first connecting screw hole 33 arranged on the side of the cylindrical connecting seat 31, and the second connecting structure includes a second connecting screw hole 34 arranged on the side wall of the cylindrical connecting seat 31.

[0038] In this embodiment, preferably, the tie rod mounting member 51 includes a mounting block 510, on which is provided a connecting screw that can be rotated into the second connecting screw hole 34, and the tie rod fixing member 52 is a fixing seat, on which is provided a fixing screw hole, for the fixing screw hole to be passed through by the fixing screw to be fixedly installed on the cap beam 6, so that during use, the connecting screw can be correspondingly rotated and installed in the second connecting screw hole 34, and the angle can be adjusted so that the tie rod fixing member 52 fits against the surface of the cap beam 6, and the tie rod fixing member 52 can be installed on the cap beam 6 by installing the screw.

[0039] In this embodiment, preferably, the fixing assembly 21 includes an upper annular seat 22 and a lower annular seat 23, and an annular side plate 231 is provided on the lower annular seat 23. The upper annular seat 22 is fixedly mounted on the annular side plate 231, and the upper annular seat 22 is fixedly mounted on the bottom of the cylindrical connecting seat 31. An annular mounting cavity 35 is formed inside the annular side plate 231. The fixing assembly 21 also includes an annular rotating plate 24 and a plurality of strip locking members 36 installed in the annular mounting cavity 35. A mounting portion for mounting the strip locking members 36 is provided on the upper annular seat 22, and the mounting portion is arranged along the radial direction of the upper annular seat 22. The strip locking members 36 are slidably restricted in the mounting portion. The annular rotating plate 24 is transmission-connected with the plurality of strip locking members 36, and the annular rotating plate 24 can rotate to drive the strip locking members 36 along the radial direction of the upper annular seat 22. The annular rotating plate 24 has a first working position and a second working position during its rotation. Correspondingly, the strip locking piece 36 is driven to move along the mounting portion and has two states: a locked state and an unlocked state. When the annular rotating plate 24 rotates to the first working position, the strip locking piece 36 is in an unlocked state. At this time, the strip locking piece 36 is not inserted into the fixing hole 12, and the fixing assembly 21 can move up and down along the fixing column; when the annular rotating plate 24 rotates to the second working position, the strip locking piece 36 is in a locked state. At this time, the strip locking piece 36 is inserted into the fixing hole 12, thereby locking the fixing assembly 21 and installing it on the fixing column. When the annular rotating plate 24 moves between the first working position and the second working position, the strip locking piece 36 switches between the unlocked state and the locked state.

[0040] In this embodiment, preferably, the strip locking member 36 includes a moving bar 361 and a locking bar 362, and the locking bar 362 is fixedly installed above the moving bar 361. The top and bottom of the moving bar 361 are respectively provided with an upper moving column 364 and a lower moving column 363. Along the radial direction of the upper annular seat 22 (from the center of the upper annular seat 22 to the outer side), the mounting portion includes a radial opening groove 222 and a first radial groove 221, and the radial opening groove 222 and the first radial groove 221 are not connected. The upper moving column 364 is slidably restricted on the first radial groove 221, and the locking bar 362 is slidably restricted in the radial opening groove 222. The rotating plate 24 is provided with an arc driving groove 241. Along the circumference of the rotating plate 24, the distance between the arc driving groove 241 and the center of the rotating plate 24 gradually changes, and the lower moving column 363 is slidably restricted in the arc driving groove 241. In this way, during use, in the initial state, the annular rotating plate 24 is in the When the annular rotating plate 24 is rotated from the first working position to the second working position, the arc driving groove 241 causes the strip locking piece 36 to move toward the center position of the upper annular seat 22. During this process, the lower moving column 363 is in the arc driving groove 241, the upper moving column 364 moves along the first radial groove 221, and the locking strip 362 moves along the radial opening groove 222, so that the locking strip 362 can be inserted into the fixing hole 12 accordingly. Conversely, when the annular rotating plate 24 is rotated from the second working position to the first working position, the arc driving groove 241 causes the strip locking piece 36 to move in a direction away from the center position of the upper annular seat 22. During this process, the lower moving column 363 is in the arc driving groove 241, the upper moving column 364 moves along the first radial groove 221, and the locking strip 362 moves along the radial opening groove 222, so that the locking strip 362 can leave the fixing hole 12.

[0041] In this embodiment, preferably, two arc-shaped openings 232 are correspondingly provided on the annular side plate 231, and arc-shaped driving blocks 242 are provided on opposite sides of the rotating plate 24. The arc-shaped driving blocks 242 are located in the arc-shaped openings 232, and a positioning hole is provided on the annular side plate 231. The arc-shaped driving block 242 includes a radial section 243 arranged along the radial direction of the rotating plate 24 and a positioning section 244 perpendicular to the radial section. The arc-shaped driving block 242 is L-shaped, and a side mounting hole for installing a positioning member (not shown in the figure) is provided on the positioning section 244. The positioning member can be a positioning bolt. When the annular rotating plate 24 rotates to the second working position, the strip locking member 36 is in a locked state. At this time, the positioning bolt corresponds to the positioning hole, and the positioning bolt can be rotated into the positioning hole, so that the rotating plate 24 is fixed in the second working position, and the strip locking member 36 is also fixed in the locked state. At the same time, the fixing component is a side mounting portion 37 arranged on the columnar connecting seat 31. During the installation process, the side mounting portion 37 can be attached to the side wall of the cap beam 6. A hole for the screw to pass through is provided on the side mounting portion 37, so that the columnar connecting seat 31 can be fixedly installed on the side wall of the cap beam 6 by the screw.

[0042] In this embodiment, during use, the installation steps are as follows:

[0043] The first step is to install the first fixed vertical pole 1, install the first fixed vertical pole 1 at one end of the cap beam 6, install the fixing assembly 21 and the connecting assembly 3 on the installation fixing structure 11 at the bottom of the fixed vertical pole 1, so that the rotating plate 24 is fixed in the second working position, the strip locking member 36 is fixed in a locked state, and the columnar connecting seat 31 can be fixedly installed on the side wall of the cap beam 6 by a screw, install the fixed tie rod 5 on the first fixed vertical pole 1, and make the tie rod fixing seat fit on the surface of the cap beam 6, and the tie rod fixing member 52 can be installed on the cap beam 6 by installing the screw, thereby completing the installation of the first fixed vertical pole 1;

[0044] In the second step, according to the preset requirements, the fixing assembly 21 and the connecting assembly 3 are sequentially installed on the other mounting and fixing structures 11 of the first fixing pole 1, so that the strip-shaped locking member 36 is correspondingly inserted into the fixing hole 12 and remains in a locked state;

[0045] The third step is to install the protective cross bar 4, and install the protective cross bar 4 on the columnar connecting seat 31 of the first fixed vertical pole 1 in sequence;

[0046] The fourth step is to install the second fixed pole 1. The connecting component 3 can be installed on the other end of the protective cross bar 4 first, and then the second fixed pole 1 can be placed and installed. Each connecting component 3 is fixed on the second fixed pole 1 through the fixing component 21. Finally, the second fixed pole 1 is fixed through the screw and the fixing rod 5. In this way, the protective cross bar 4, the third fixed pole 1, the protective cross bar 4, and the fourth fixed pole 1 are installed in turn until the installation of the entire safety guardrail is completed.

[0047] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A safety guardrail for highway cap beam construction, characterized in that: include: A fixed upright, wherein the fixed upright is sequentially arranged at intervals along the length direction of the cap beam, and the fixed upright is provided with at least two mounting and fixing structures along the length direction, and the mounting and fixing structures are detachably provided with a mounting mechanism, and the mounting mechanism includes a fixing assembly and a connecting assembly connected to the fixing assembly, and the connecting assembly is provided with a fixing member that can be fixedly connected to the edge of the cap beam, and the connecting assembly is provided with a first connecting structure and a second connecting structure; A protective cross bar, wherein both ends of the protective cross bar are provided with connecting members, and the connecting members can be fixedly connected to the first connecting structure; A fixed pull rod, one end of which is provided with a pull rod mounting piece, and the pull rod mounting piece can be detachably fixed on the second connecting structure; the other end of the fixed pull rod is provided with a pull rod fixing piece, and the pull rod fixing piece can be fixedly mounted on the cap beam.

2. The safety guardrail for highway cap beam construction according to claim 1 is characterized in that: Each of the installation and fixing structures comprises four fixing holes, and the four fixing holes are arranged in sequence and at intervals along the circumference of the fixing pole.

3. The safety guardrail for highway cap beam construction according to claim 1 is characterized in that: The connecting assembly includes a cylindrical connecting seat, and a mounting through hole corresponding to the size of the fixed vertical pole is arranged inside the cylindrical connecting seat. The first connecting structure includes a first connecting screw hole arranged on the side of the cylindrical connecting seat, and the second connecting structure includes a second connecting screw hole arranged on the side wall of the cylindrical connecting seat.

4. The safety guardrail for highway cap beam construction according to claim 3 is characterized in that: The tie rod mounting member includes a mounting block, and the mounting block can be mounted on the second connecting screw hole.

5. The safety guardrail for highway cap beam construction according to claim 3 is characterized in that: The fixing assembly includes an upper annular seat and a lower annular seat, wherein the upper annular seat is fixedly mounted on the bottom of the columnar connecting seat, and an annular side plate is arranged on the lower annular seat, and the upper annular seat is fixedly mounted on the annular side plate to form an annular mounting cavity.

6. The safety guardrail for highway cap beam construction according to claim 5 is characterized in that: The fixing assembly also includes an annular rotating plate and a plurality of strip locking members installed in the annular mounting cavity. A mounting portion for mounting the strip locking members is provided on the upper annular seat. The annular rotating plate is transmission-connected to the plurality of strip locking members. The rotation of the annular rotating plate can correspondingly drive the strip locking members to move radially along the upper annular seat.

7. The safety guardrail for highway cap beam construction according to claim 6 is characterized in that: The strip-shaped locking piece includes a moving bar and a locking bar, the locking bar is fixedly mounted on the moving bar, an upper moving column and a lower moving column are respectively provided at the top and bottom of the moving bar, the mounting portion includes a first radial groove and a radial opening groove, the upper moving column is slidably restricted on the first radial groove, and the locking bar is slidably restricted in the radial opening groove.

8. The safety guardrail for highway cap beam construction according to claim 7 is characterized in that: The rotating plate is provided with an arc-shaped driving groove, and along the circumference of the rotating plate, the distance between the arc-shaped driving groove and the center of the rotating plate gradually changes, and the lower moving column is slidably restricted in the arc-shaped driving groove.

9. The safety guardrail for highway cap beam construction according to claim 8, characterized in that: Two arc-shaped openings are correspondingly arranged on the annular side plate, and arc-shaped driving blocks are arranged on opposite sides of the rotating plate, and the arc-shaped driving blocks are located in the arc-shaped openings.

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