A post connection assembly for a fabricated balustrade

Abstract

The utility model relates to the field of balustrade, and specifically disclose a kind of column connecting assembly of assembly type balustrade, including stand column, with the column head of stand column connection, with the first connecting seat of column head connection, first connecting seat is used to install handrail, the bottom of stand column is equipped with pre-buried pipe, pre-buried pipe and stand column are connected by the way of insertion and the depth of insertion between pre-buried pipe and stand column is adjustable;First connecting seat and column head are connected by first angle adjusting mechanism, and the angle between first connecting seat and column head can be adjusted by first angle adjusting mechanism.Using the structure, not only installation is convenient, and the installation inclination and installation height of handrail can be adjusted according to installation environment.The problem that handrail cannot be flexibly adjusted according to the installation requirement of different inclination angle and the height of column connecting assembly cannot be adjusted according to the different height installation requirement of handrail in prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of railings, specifically to a post connection assembly for prefabricated railings. Background Technology

[0002] As an important component of railings, the post connection assembly is used to connect handrails, child handrails, and the ground. It is widely used in places where railings need to be installed, such as bridges, roads, and stairs. It not only plays a role in isolation and safety protection, but also strengthens the overall structure of the railing.

[0003] In the existing technology, most of the columns used to connect handrails and child handrails are one-piece structures, and the columns are fixedly connected to the handrails and child handrails by on-site welding. This is not only inconvenient to install, but also makes it impossible to adjust the installation angle and height of the handrails.

[0004] The existing technology has the following problems: the handrail cannot be flexibly adjusted according to the installation requirements of different tilt angles, and the height of the column connection component cannot be adjusted according to the different height installation requirements of the handrail. Utility Model Content

[0005] The purpose of this utility model is to provide a post connection assembly for prefabricated railings to address the above-mentioned problems, thereby solving the issues in the prior art where the handrail cannot be flexibly adjusted according to different tilt angles and the height of the post connection assembly cannot be adjusted according to different heights of the handrail.

[0006] To achieve the above objectives, this utility model discloses a post connection assembly for a prefabricated railing, including a post pole, a post head connected to the post pole, and a first connecting seat connected to the post head. The first connecting seat is used to install a handrail. A pre-embedded tube is provided at the bottom of the post pole. The pre-embedded tube and the post pole are connected by an insertion method, and the insertion depth between the pre-embedded tube and the post pole is adjustable. The first connecting seat and the post head are connected by a first angle adjustment mechanism, which can adjust the angle between the first connecting seat and the post head. The post head includes a first plug and an interface for connecting to the post pole. The first connecting seat includes a first socket and a first base for connecting to the handrail. The first plug has a first through hole, and the first socket has a first groove in the middle. The two side walls of the first groove have a first connecting hole and a first coaxial hole, respectively. The first plug is inserted into the first groove, and the first plug and the first socket are connected by a first locking member passing through the first coaxial hole, the first through hole, and the first connecting hole. The first plug, the first socket, and the first locking member together constitute the first angle adjustment mechanism.

[0007] Using the above structure, the height of the column connection assembly can be adjusted by changing the insertion depth between the embedded pipe and the column rod, thereby adjusting the handrail installation height. When the installation tilt angle of the handrail needs to be adjusted, the angle between the first connecting seat and the column head can be adjusted by adjusting the first angle adjustment mechanism. This not only facilitates installation but also allows for adjustment of the handrail's installation tilt and height according to the installation environment. It solves the problems in existing technologies where handrails cannot be flexibly adjusted according to different tilt angles and the height of the column connection assembly cannot be adjusted according to different handrail height requirements. When adjusting the angle between the first connecting seat and the column head, the first locking piece is loosened, and the angle between the first plug and the first socket is adjusted by coaxially rotating the first socket. After adjusting to the appropriate angle, the first locking piece is tightened to securely connect the first plug and the first socket, achieving adjustable angle between the first connecting seat and the column head. Furthermore, the handrail's installation angle can be adjusted according to different installation angle requirements.

[0008] As a further improvement of this utility model, the first locking element is a bolt, and the first connecting hole or the first through hole is threaded. The first locking element and the first plug or the first locking element and the first socket are connected by threads. With the above structure, after loosening the bolt, the angle of the first plug and the first socket can be adjusted. After adjusting to a suitable angle, tightening the bolt will make the first plug and the first socket securely fitted, realizing the adjustable angle between the first connecting seat and the column head, making the adjustment of the handrail's installation angle more convenient.

[0009] As a further improvement of this utility model, the first locking component includes a bolt and a nut, which connect the first plug and the first socket. The bolt passes through the first coaxial hole, the first through hole, and the first connecting hole. With the above structure, after loosening the nut, the angle of the first plug and the first socket can be adjusted. After adjusting to a suitable angle, tightening the nut secures the first plug and the first socket together, realizing the adjustable angle between the first connecting seat and the column head, making the adjustment of the handrail's installation angle more convenient.

[0010] As a further improvement of this utility model, the first connecting seat includes a first socket and a first base for connecting with the handrail; the first base is an arc-shaped sheet structure and has mounting holes for assembling the first base and the handrail. With the above structure, when the handrail is cylindrical, the curvature between the first base and the handrail matches, and then screws are passed through the mounting holes for installation, making the connection between the first base and the handrail more stable.

[0011] As a further improvement of this utility model, the upper end of the column is provided with a column head connection hole. The column head includes a first plug and an interface portion. The first plug is used to connect with a first connecting seat. The interface portion is inserted into the column head connection hole, and the interface portion is interference-fitted with the column head connection hole to connect the interface portion to the column. Multiple protrusions are provided around the outer wall of the interface portion. With the above structure, the protrusions form a multi-point interference fit, which not only facilitates installation but also makes the structure more stable.

[0012] As a further improvement of this utility model, a first through hole is provided on the side wall of the column rod, and a through hole is provided on the embedded pipe. A first fastener is provided between the embedded pipe and the column rod. There are multiple first through holes and / or through holes. The first fastener passes through the first through holes and through holes to fix the embedded pipe and the column rod. With the above structure, when there are multiple through holes on the embedded pipe, the installation height of the handrail can be adjusted by adjusting the alignment positions of different through holes with the first through hole, and then fixing the embedded pipe and the column rod with the first fastener. Similarly, when there are multiple first through holes on the side wall of the column rod, the installation height of the handrail can be adjusted by adjusting the alignment positions of different first through holes with the through holes, and then fixing the embedded pipe and the column rod with the first fastener. This makes the installation height adjustment of the handrail more convenient and the connection between the embedded pipe and the column rod more stable.

[0013] As a further improvement of this utility model, the column rod is provided with a second through hole for installing a support base. A support base is connected to the column rod below the column head. A second connecting base for connecting with a child grab handle is connected to the support base. A second angle adjustment mechanism is provided between the second connecting base and the support base, and the angle between the second connecting base and the support base can be adjusted by the second angle adjustment mechanism. The support base includes a support base, a support rod, and a second socket connected in sequence. The support base is connected to the column rod. The support rod is L-shaped. The straight section of the support rod is connected to the support base, and the vertical section of the support rod is connected to the second socket. The second socket is connected to the second connecting base. The second connecting base includes a second plug and a second base for connecting with the child grab handle. The second base is an arc-shaped sheet structure. The second plug is provided with a second through hole. The second socket has a second groove in the middle. The two side walls of the second groove are respectively provided with a second connecting hole and a second coaxial hole. The second plug is inserted into the second groove, and the second plug and the second socket are connected by a second locking member passing through the second connecting hole, the second through hole, and the second coaxial hole. The second plug, the second socket, and the second locking member together constitute the second angle adjustment mechanism. Using the above structure, child grab bars can be installed on the upright post. When it is necessary to adjust the angle between the second connecting seat and the support seat, the second locking piece is loosened, and the angle between the second plug and the second socket is adjusted by coaxially rotating the second plug. After adjusting to the appropriate angle, the second locking piece is tightened to securely connect the second plug and the second socket, thus achieving adjustable angle between the second connecting seat and the support seat. This not only facilitates the installation of child grab bars, but also allows for flexible adjustment of different installation angles according to requirements.

[0014] As a further improvement of this utility model, a base is fixedly connected to the bottom of the column. The base has a plate-like structure and mounting holes on both sides. A fixing element is provided on the base, passing through the mounting holes to fix the base to the ground. Using the above structure, the fixing element can be an expansion bolt, anchor bolt, or other fastener, which passes through the mounting holes to fix the base to the ground. This makes the connection between the column connection assembly and the ground more stable.

[0015] In summary, the beneficial effects of this utility model are as follows: the height of the column connecting assembly is adjustable, the angle between the first connecting seat and the column head is adjustable, and the angle between the second connecting seat and the support seat is adjustable, making the prefabricated railing not only easy to install but also adaptable to the installation needs of handrails or child handrails at different angles and / or heights. This solves the problems in the prior art where handrails cannot be flexibly adjusted according to different tilt angle installation requirements and the height of the column connecting assembly cannot be adjusted according to different handrail height installation requirements. Attached Figure Description

[0016] Figure 1 This is a perspective view of one embodiment of a prefabricated railing post connection assembly according to this utility model.

[0017] Figure 2 yes Figure 1 The front view of an embodiment of the post connection assembly of the prefabricated railing shown.

[0018] Figure 3 yes Figure 2 The illustrated embodiment of the post connection assembly of the prefabricated railing is shown in a cross-sectional view along the AA direction.

[0019] Figure 4 yes Figure 2 An enlarged view of part B of the post connection assembly of the prefabricated railing shown.

[0020] Figure 5 yes Figure 2 An enlarged view of another embodiment of part B of the post connection assembly of the prefabricated railing shown.

[0021] Figure 6 This is a front view of one embodiment of the column head in this utility model.

[0022] Figure 7 yes Figure 2 An enlarged view of section C of the post connection assembly of the prefabricated railing shown.

[0023] In the diagram: 1. Column rod; 100. First through hole; 200. Second through hole; 300. Column head connection hole; 2. Column head; 21. First plug; 211. First through hole; 22. Interface part; 221. Protrusion; 3. First connecting seat; 31. First socket; 311. First groove; 312. First connecting hole; 313. First coaxial hole; 32. First base; 321. Assembly hole; 4. Embedded pipe; 41. Through hole; 5. First fastener; 6. First angle adjustment mechanism. 7. First locking element, 71. Bolt, 72. Nut, 8. Support seat, 81. Support base, 82. Support rod, 83. Second socket, 831. Second groove, 832. Second connecting hole, 833. Second coaxial hole, 9. Second connecting seat, 91. Second plug, 92. Second base, 921. Second through hole, 10. Second fastener, 11. Second angle adjustment mechanism, 12. Second locking element, 13. Base, 130. Mounting hole, 14. Fixing element. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] Reference Figures 1 to 5In some embodiments of this utility model, a prefabricated railing post connection assembly includes a post 1, a post head 2 connected to the post 1, and a first connecting seat 3 connected to the post head 2. The first connecting seat 3 is used to install handrails. The bottom of the post 1 is provided with a pre-embedded pipe 4. The pre-embedded pipe 4 and the post 1 are connected by a plug-in connection, and the insertion depth between the pre-embedded pipe 4 and the post 1 is adjustable. The first connecting seat 3 and the post head 2 are connected by a first angle adjustment mechanism 6, and the angle between the first connecting seat 3 and the post head 2 can be adjusted by the first angle adjustment mechanism 6.

[0026] Through the above improvements, the height of the column connection assembly can be adjusted by changing the insertion depth between the embedded pipe 4 and the column rod 1, thereby adjusting the installation height of the handrail. When it is necessary to adjust the installation tilt angle of the handrail, the angle between the first connecting seat 3 and the column head 2 can be adjusted by adjusting the first angle adjustment mechanism 6. This not only facilitates installation but also allows the installation tilt and height of the handrail to be adjusted according to the installation environment. It solves the problems in the prior art where the handrail cannot be flexibly adjusted according to different tilt angle installation requirements and the height of the column connection assembly cannot be adjusted according to different handrail height installation requirements.

[0027] Reference Figures 4 to 6 In some embodiments of this utility model, the column head 2 includes a first plug 21 and an interface portion 22 for connecting with the column rod 1, and the first connecting seat 3 includes a first socket 31 and a first base 32 for connecting with the handrail; the first plug 21 is provided with a first through hole 211, the first socket 31 is provided with a first groove 311 in the middle, and the two side walls of the first groove 311 are respectively provided with a first connecting hole 312 and a first coaxial hole 313; the first plug 21 is inserted into the first groove 311 and the first plug 21 and the first socket 31 are connected by a first locking member 7 passing through the first coaxial hole 313, the first through hole 211 and the first connecting hole 312; the first plug 21, the first socket 31 and the first locking member 7 together constitute the first angle adjustment mechanism 6. Through the above improvements, when it is necessary to adjust the angle between the first connecting seat 3 and the column head 2, the first locking member 7 is loosened, and the angle between the first plug 21 and the first socket 31 is adjusted by coaxially rotating the first socket 31. After adjusting to the appropriate angle, the first locking member 7 is tightened to securely connect the first plug 21 and the first socket 31, thus achieving adjustable angle between the first connecting seat 3 and the column head 2. This not only facilitates installation but also allows the installation angle of the handrail to be adjusted according to different installation requirements.

[0028] Reference Figure 4In some embodiments of this utility model, the first locking member 7 is a bolt 71, and the first connecting hole 312 or the first through hole 211 is provided with threads. The first locking member 7 and the first plug 21 or the first locking member 7 and the first socket 31 are connected by threads. Through the above improvements, after loosening the bolt, the angle of the first plug 21 and the first socket 31 can be adjusted. After adjusting to a suitable angle, the bolt is tightened to make the first plug 21 and the first socket 31 securely fitted, realizing the adjustable angle between the first connecting seat 3 and the column head 2, making the adjustment of the handrail installation angle more convenient.

[0029] Reference Figure 5 In some embodiments of this utility model, the first locking member 7 includes a bolt 71 and a nut 72, which connect the first plug 21 and the first socket 31. The bolt 71 passes through the first coaxial hole 313, the first through hole 211, and the first connecting hole 312. With the above improvement, after loosening the nut, the angle of the first plug 21 and the first socket 31 can be adjusted. After adjusting to a suitable angle, tightening the nut makes the first plug 21 and the first socket 31 securely fitted, realizing the adjustable angle between the first connecting seat 3 and the column head 2, making the adjustment of the handrail's installation angle more convenient.

[0030] Reference Figure 1 and Figure 3 In some embodiments of this utility model, the first connecting seat 3 includes a first socket 31 and a first base 32 for connecting with the handrail; the first base 32 is an arc-shaped plate structure and has mounting holes 321 for assembling the first base 32 and the handrail. A base 13 is fixedly connected to the bottom of the column 1. The base 13 is a plate structure and has mounting holes 130 on both sides. A fixing member 14 is provided on the base 13, and the fixing member 14 passes through the mounting holes 130 to fix the base 13 to the ground. Through the above improvements, when the handrail is cylindrical, the curvature between the first base 32 and the handrail matches, and the connection between the first base 32 and the handrail is more stable by screws passing through the mounting holes 321. The fixing member 14 can be an expansion screw, anchor bolt, or other fixing member 14. The fixing member 14 passes through the mounting holes 130 to fix the base 13 to the ground, making the connection between the column connecting assembly and the ground more stable.

[0031] Reference Figure 6In some embodiments of this utility model, the upper end of the column rod 1 is provided with a column head connection hole 300. The column head 2 includes a first plug 21 and an interface portion 22. The first plug 21 is used to connect with the first connecting seat 3. The interface portion 22 is inserted into the column head connection hole 300. The interface portion 22 and the column head connection hole 300 are interference-fitted to connect the interface portion 22 to the column rod 1. A plurality of protrusions 231 are provided around the outer wall of the interface portion 22. Through the above improvements, the multiple protrusions 231 form a multi-point interference fit, which not only facilitates installation but also makes the structure more stable.

[0032] Reference Figure 3 In some embodiments of this utility model, a first through hole 100 is provided on the side wall of the column rod 1, and a through hole 41 is provided on the embedded pipe 4. A first fastener 5 is provided between the embedded pipe 4 and the column rod 1. There are multiple first through holes 100 and / or through holes 41. The first fastener 5 passes through the first through holes 100 and through holes 41 to fix the embedded pipe 4 and the column rod 1. When the embedded pipe 4 has multiple through holes 41, the installation height of the handrail can be adjusted by adjusting the alignment positions of different through holes 41 with the first through hole 100 and then fixing the embedded pipe 4 and the column rod 1 with the first fastener. Similarly, when the side wall of the column rod 1 has multiple first through holes 100, the installation height of the handrail can be adjusted by adjusting the alignment positions of different first through holes 100 with the through holes 41 and then fixing the embedded pipe 4 and the column rod 1 with the first fastener. This makes the adjustment of the handrail's installation height more convenient and the connection between the embedded pipe 4 and the column rod 1 more stable.

[0033] Reference Figures 1 to 3 , Figure 7In some embodiments of this utility model, the column rod 1 is provided with a second through hole 200 for installing the support seat 8. The support seat 8 is connected to the column rod 1 below the column head 2. The support seat 8 is connected with a second connecting seat 9 for connecting with the child grab handle. A second fastener 10 is provided between the support seat 8 and the column rod 1. The second fastener 10 passes through the support seat 8 and the second through hole 200 to connect the support seat 8 and the column rod 1. A second angle adjustment mechanism 11 is provided between the second connecting seat 9 and the support seat 8. The angle between the second connecting seat 9 and the support seat 8 can be adjusted by the second angle adjustment mechanism 11. The support base 8 includes a support base 81, a support rod 82, and a second socket 83 connected in sequence. The support base 81 is connected to the upright rod 1. The support rod 82 is L-shaped. The straight section of the support rod 82 is connected to the support base 81, and the straight section is used to separate the upright rod 1 and the child grab handle by a certain distance. The vertical section of the support rod 82 is connected to the second socket 83, and the vertical section is used to support the child grab handle. The second socket 83 is connected to the second connecting seat 9. The second connecting seat 9 includes a second plug 91 and a second base 92 for connecting to the child grab handle. The second base 92 is... The structure is an arc-shaped sheet; the second plug 91 has a second through hole 921, and the second socket 83 has a second groove 831 in the middle. The two side walls of the second groove 831 have a second connecting hole 832 and a second coaxial hole 833, respectively. The second plug 91 is inserted into the second groove 831, and the second plug 91 and the second socket 83 are connected by a second locking member 12 passing through the second connecting hole 832, the second through hole 921, and the second coaxial hole 833. The second plug 91, the second socket 83, and the second locking member 12 together constitute the second angle adjustment mechanism 11. With the above improvements, a child grab bar can be installed on the column rod 1. When it is necessary to adjust the angle between the second connecting seat 9 and the support seat, the second locking member 12 is loosened, and the angle between the second plug 91 and the second socket is adjusted by coaxially rotating the second plug 91. After adjusting to a suitable angle, the second locking member 12 is tightened to securely connect the second plug 91 and the second socket, thus realizing the adjustable angle between the second connecting seat 9 and the support seat. Not only can child handrails be easily installed, but the different installation angles of the child handrails can also be flexibly adjusted according to requirements.

[0034] The working principle of the column connection assembly of the prefabricated railing is as follows: the first connecting seat 3 is connected to the handrail by passing bolts through the threaded mounting holes 321 on the base 32 and tightening the bolts; the column head 2 is connected to the column rod 1, and the column head 2 is tapped to form an interference fit with the inner wall of the column rod 1 through the protrusion 231; the first locking member 7 is used to connect the first plug 21 and the first socket 31. When it is necessary to adjust the angle between the first connecting seat 3 and the column head 2, the first locking member 7 is loosened to adjust the angle between the first plug 21 and the first socket 31. After adjusting to the appropriate angle, the first locking member 7 is tightened to make the first plug 21 and the first socket 31 securely fitted. Use the second fastener 10 to install the support base 8 on the column rod 1. Use the second locking member 12 to connect the support base 8 and the second connecting seat 9. Adjust the angle between the support base 8 and the second connecting seat 9. After adjusting to a suitable angle, tighten the second locking member 12 to securely connect the second plug 91 and the second socket 83. Insert the pre-embedded pipe 4 and the column rod 1 and adjust it to a suitable height. Use the first fastener 5 to pass through the first through hole 100 and the through hole 41 to connect the pre-embedded pipe 4 and the column rod 1. Use the fixing member 14 to fix the base 5 to the ground or the bottom of the pre-embedded opening to achieve a secure connection between the column connection assembly and the ground.

[0035] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A post connection assembly for a prefabricated railing, comprising a post post (1), a post head (2) connected to the post post (1), and a first connecting seat (3) connected to the post head (2), wherein the first connecting seat (3) is used for installing handrails, and a pre-embedded pipe (4) is provided at the bottom of the post post (1), characterized in that, The embedded pipe (4) and the column rod (1) are connected by a plug-in connection, and the insertion depth between the embedded pipe (4) and the column rod (1) is adjustable; the first connecting seat (3) and the column head (2) are connected by a first angle adjustment mechanism (6), and the angle between the first connecting seat (3) and the column head (2) can be adjusted by the first angle adjustment mechanism (6); the column head (2) includes a first plug (21) and an interface part (22) for connecting with the column rod (1), and the first connecting seat (3) includes a first socket (31) and a first base (32) for connecting with the handrail; the first plug (21) is provided with a first through hole. (211) A first groove (311) is provided in the middle of the first socket (31), and a first connecting hole (312) and a first coaxial hole (313) are provided on the two side walls of the first groove (311); the first plug (21) is inserted into the first groove (311) and the first plug (21) and the first socket (31) are connected by a first locking member (7) passing through the first coaxial hole (313), the first through hole (211) and the first connecting hole (312); the first plug (21), the first socket (31) and the first locking member (7) together constitute the first angle adjustment mechanism (6).

2. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The first locking member (7) is a bolt (71), and the first connecting hole (312) or the first through hole (211) is provided with threads. The first locking member (7) and the first plug (21) or the first locking member (7) and the first socket (31) are connected by threads.

3. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The first locking member (7) includes a bolt (71) and a nut (72), which connect the first plug (21) and the first socket (31) by means of the nut (72) and the bolt (71), and the bolt (71) passes through the first coaxial hole (313), the first through hole (211) and the first connecting hole (312).

4. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The first connecting base (3) includes a first socket (31) and a first base (32) for connecting with the handrail; the first base (32) is an arc-shaped sheet structure and the first base (32) is provided with mounting holes (321) for assembling the first base (32) and the handrail.

5. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The upper end of the column rod (1) is provided with a column head connection hole (300). The column head (2) includes a first plug (21) and an interface part (22). The first plug (21) is used to connect with the first connector (3). The interface part (22) is inserted into the column head connection hole (300). The interface part (22) and the column head connection hole (300) are press-fitted to connect the interface part (22) to the column rod (1). Multiple protrusions (231) are provided on the outer wall of the interface part (22).

6. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The side wall of the column rod (1) is provided with a first through hole (100), the pre-embedded pipe (4) is provided with a through hole (41), and a first fastener (5) is provided between the pre-embedded pipe (4) and the column rod (1). The number of the first through hole (100) and / or through hole (41) is multiple. The first fastener (5) passes through the first through hole (100) and through hole (41) to fix the pre-embedded pipe (4) and the column rod (1).

7. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The column rod (1) is provided with a second through hole (200) for installing the support seat (8). The support seat (8) is connected to the column rod (1) below the column head (2). The support seat (8) is connected to a second connecting seat (9) for connecting with the child handrail. A second angle adjustment mechanism (11) is provided between the second connecting seat (9) and the support seat (8). The angle between the second connecting seat (9) and the support seat (8) can be adjusted by the second angle adjustment mechanism (11).

8. The post connection assembly of the prefabricated railing as described in claim 7, characterized in that, The support base (8) includes a support base (81), a support rod (82), and a second socket (83) connected in sequence; the support base (81) is connected to the column rod (1), the support rod (82) is L-shaped, the straight section of the support rod (82) is connected to the support base (81), the vertical section of the support rod (82) is connected to the second socket (83), and the second socket (83) is connected to the second connecting seat (9); the second connecting seat (9) includes a second plug (91) and a second base (92) for connecting with the child's handrail, the second base (92) is an arc-shaped sheet structure; the second plug (91) is provided with a second through hole. (921) The second socket (83) has a second groove (831) in the middle. The second connecting hole (832) and the second coaxial hole (833) are respectively provided on the two side walls of the second groove (831). The second plug (91) is inserted into the second groove (831) and the second plug (91) and the second socket (83) are connected by a second locking member (12) passing through the second connecting hole (832), the second through hole (921) and the second coaxial hole (833). The second plug (91), the second socket (83) and the second locking member (12) together constitute the second angle adjustment mechanism (11).

9. The post connection assembly of the prefabricated railing as described in claim 1, characterized in that, The bottom of the column rod (1) is fixedly connected to a base (13). The base (13) is a plate structure and has mounting holes (130) on both sides. A fastener (14) is provided on the base (13). The fastener (14) passes through the mounting holes (130) to fix the base (13) to the ground.

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