A step pipe connector and a method of installing the same
The combination structure of locking components, base, rotating seat and connecting seat solves the problems of inconvenient operation and safety hazards in connecting step tubes, realizes convenient and safe bending installation, and expands the scope of application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2026-03-17
AI Technical Summary
The existing stair tread connection structure is inconvenient to operate during installation and poses safety hazards. It also has a limited scope of application and cannot effectively connect bent stair handrails.
The stair railing adopts a combination structure of locking components, base, rotating seat and connecting seat, and the installation of the step tube is achieved by bolt connection, which allows bending and angle adjustment between the stair railings and avoids welding operations.
It enables convenient installation of step tube connections, improves safety, expands the scope of application, and is suitable for various installation scenarios.
Smart Images

Figure CN117822868B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building decoration engineering technology, and in particular to a stair tread connector and its installation method. Background Technology
[0002] The main purpose of stair treads is as railings for stairs. The connection between existing stair treads often requires on-site manual welding or the use of corresponding connectors for welding, grinding, polishing and other processes, which makes the actual installation process inconvenient and the welding operation can also pose certain safety hazards.
[0003] The existing publication number CN103669758B discloses a stair handrail connection structure, including a stair handrail post and a straight pipe connector. Adjacent stair handrail posts are connected by the connector, which consists of an elastic sleeve and a steel ring. The steel ring fits around the elastic sleeve. The elastic sleeve and the steel ring are fixedly connected together at a through hole. The elastic sleeve is a notched sleeve formed by cutting a section of steel pipe along its main axis. It is elastic and can be squeezed by hand to reduce its diameter so that it can be inserted into the stair handrail post. The elastic force generated by the compression of the elastic sleeve allows it to be tightly connected to the stair handrail post. No welding or other processes are required, making installation convenient, safe, and environmentally friendly. After fitting, the surface is smooth and aesthetically pleasing.
[0004] However, the above-mentioned stair handrail connection structure involves fully inserting the elastic sleeve into the stair handrail bar, which can only connect two straight stair handrail bars. In actual installation, the stair handrail bars also need to be bent during installation, so the above-mentioned stair handrail connection structure has a limited scope of application. Summary of the Invention
[0005] The purpose of this invention is to provide a step tube connector and its installation method, which solves the problem that the above-mentioned stair handrail connection structure has a limited scope of application.
[0006] To achieve the above objectives, the present invention provides a stair tread connector, including a stair handrail and a connecting assembly;
[0007] The connecting assembly includes a locking member, a base, a rotating seat, a connecting seat, and a mounting member. The locking member is connected to the stair handrail, the base is connected to the locking member, the rotating seat is located on the side of the base away from the locking member, and the connecting seat is connected to the rotating seat through the mounting member.
[0008] The locking component includes a connecting bolt, a locking seat, and a spring piece. The connecting bolt is threaded to the base and passes through the base. The locking seat is connected to the connecting bolt and engages with the stair handrail. The end of the spring piece is fixedly connected to the locking seat.
[0009] The mounting components include a first countersunk bolt, a second countersunk bolt, and a mounting bolt. The first countersunk bolt is threaded to the rotating seat and passes through the base. The second countersunk bolt is threaded to the rotating seat and passes through the connecting seat. The mounting bolt is threaded to the stair handrail and passes through the connecting seat.
[0010] The stair handrail has a through groove, a mounting hole, and a mounting slot. The through groove extends along the length of the stair handrail. The mounting hole is located at the center of the stair handrail and mates with the mounting bolt. The mounting slot is located on the surface of the stair handrail.
[0011] The base has a first arc surface and a second arc surface. The first arc surface is located on the side of the base near the stair handrail and mates with the surface of the stair handrail. The second arc surface is located on the side of the base near the rotating seat and mates with the surface of the rotating seat. The connecting seat has a third arc surface, which is located on the side of the connecting seat near the rotating seat and mates with the surface of the rotating seat.
[0012] A method for installing a stair tread tube connector includes the following steps:
[0013] Assemble the locking components, base, and rotating seat;
[0014] After assembly, press the spring clip and insert the locking seat and the spring clip together into a stair handrail.
[0015] Assemble the connecting bracket with another stair handrail;
[0016] After assembly, place the connecting seat close to the rotating seat and rotate to adjust the angle of the connecting seat;
[0017] After adjustment, use the second countersunk bolt to lock the connecting seat and the rotating seat, and the installation is complete.
[0018] The step of assembling the locking component, the base, and the rotating seat further includes:
[0019] Screw the connecting bolts into the base and through the base;
[0020] The locking seat is installed with an interference fit at one end of the connecting bolt that protrudes from the base, and at this time the spring piece is fixed to the side wall of the locking seat;
[0021] After the rotating seat is attached to the base, the first countersunk bolt passes through the base and screws with the rotating seat until it abuts against the surface wall of the base.
[0022] The step of assembling the connecting seat with another stair handrail also includes:
[0023] After placing the end of the other stair handrail close to the connector, pass the mounting bolt through the connector and screw it into the mounting hole until it abuts against the surface of the connector.
[0024] This invention discloses a step tube connector and its installation method. The locking component is installed on the stair handrail. The connecting seat is connected to another stair handrail via the mounting component. The base is installed on the locking component, and the other side of the base is connected to a rotating seat via the mounting component. The connecting seat is also connected to the rotating seat via the mounting component. The connecting seat or the base can rotate along the rotating seat according to their installation order with the rotating seat, thereby adjusting the angle. Finally, the mounting component locks them in place. Installation is complete without welding, making installation more convenient and safer. It also allows for bending installation between stair handrails, broadening its applicability. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0026] Figure 1 This is a schematic diagram of the connection between the base and the connecting seat according to the first embodiment of the present invention.
[0027] Figure 2 This is a schematic diagram of the connection between the base and the rotating seat in the first embodiment of the present invention.
[0028] Figure 3 This is a schematic diagram of the connection between the connecting seat and the rotating seat according to the first embodiment of the present invention.
[0029] Figure 4 This is a structural schematic diagram of the stair handrail according to the first embodiment of the present invention.
[0030] Figure 5 This is a diagram showing the usage state of the step tube connector according to the first embodiment of the present invention.
[0031] Figure 6 This is a step diagram of the installation method of the step tube connector according to the second embodiment of the present invention.
[0032] In the diagram: 101-Stair handrail, 102-Base, 103-Rotating seat, 104-Connecting seat, 105-Connecting bolt, 106-Snap-fit seat, 107-Spring, 108-First countersunk bolt, 109-Second countersunk bolt, 110-Mounting bolt, 111-Through groove, 112-Mounting hole, 113-Mounting groove, 114-First arc surface, 115-Second arc surface, 116-Third arc surface. Detailed Implementation
[0033] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0034] The first embodiment of this application is as follows:
[0035] Please see Figures 1 to 5 ,in, Figure 1 This is a schematic diagram of the connection between the base 102 and the connecting seat 104 in the first embodiment of the present invention. Figure 2 This is a schematic diagram showing the connection between the base 102 and the base rotating seat 103 in the first embodiment of the present invention. Figure 3 This is a schematic diagram of the connection between the connecting seat 104 and the base rotating seat 103 according to the first embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the stair handrail 101 according to the first embodiment of the present invention. Figure 5 This is a usage diagram of the stair tread tube connector according to the first embodiment of the present invention. The present invention provides a stair tread tube connector: including a stair handrail 101 and a connecting assembly. The connecting assembly includes a locking component, a base 102, a base rotating seat 103, a connecting seat 104, and a mounting component. The locking component includes a connecting bolt 105, a locking seat 106, and a spring piece 107. The mounting component includes a first countersunk bolt 108, a second countersunk bolt 109, and a mounting bolt 110. The stair handrail 101 has a through groove 111, a mounting hole 112, and a mounting slot 113. The base 102 has a first arc surface 114 and a second arc surface 115. The connecting seat 104 has a third arc surface 116. Given the limited applicability of stair handrail connection structures in the aforementioned background art, it can be understood that the aforementioned solution can be used for stair tread tube installation and can also be used to solve the connection problem between pipe fittings.
[0036] In this specific embodiment, the locking member is connected to the stair handrail 101, the base 102 is connected to the locking member, the base rotating seat 103 is located on the side of the base 102 away from the locking member, and the connecting seat 104 is connected to the base rotating seat 103 through the mounting member. The locking member is used to connect to the stair handrail 101. The connecting seat 104 connects to another stair handrail 101 through the mounting member. The base 102 is connected to the locking member. The base 102 is connected to the base rotating seat 103 through the mounting member. The connecting seat 104 is connected to the base rotating seat 103 through the mounting member. If the base rotating seat 103 is connected to the base 102 first, the connecting seat 104 can rotate along the base rotating seat 103. If the base rotating seat 103 is connected to the connecting seat 104 first, the base 102 can rotate along the base rotating seat 103, realizing the bending installation between the two stair handrails 101, which is convenient and applicable to various scenarios.
[0037] The connecting bolt 105 is threadedly connected to the base 102 and passes through the base 102; the engaging seat 106 is connected to the connecting bolt 105 and engages with the stair handrail 101; the end of the spring piece 107 is fixedly connected to the engaging seat 106. The connecting bolt 105 is screwed into the base 102 and passes through the base 102, with one end of the bolt having an interference fit with the engaging seat 106. The spring piece 107 is welded and fixed to the side of the engaging seat 106, and the side of the spring piece 107 away from the engaging seat 106 is elastic.
[0038] Secondly, the first countersunk bolt 108 is threadedly connected to the base rotating seat 103 and passes through the base 102; the second countersunk bolt 109 is threadedly connected to the base rotating seat 103 and passes through the connecting seat 104; the mounting bolt 110 is threadedly connected to the stair handrail 101 and passes through the connecting seat 104. The first countersunk bolt 108 passes through the base 102 and is threadedly connected to the base rotating seat 103, fixing the base rotating seat 103 on the base 102. When the first countersunk bolt 108 is not abutting against the base 102, the base rotating seat 103 rotates on the base 102 through the first countersunk bolt 108. The second countersunk bolt 109 passes through the connecting seat 104 and is threadedly connected to the base rotating seat 103, positioned relative to the first countersunk bolt 108. When the second countersunk bolt 109 is not abutting against the connecting seat 104, the base rotating seat 103 rotates on the connecting seat 104 through the second countersunk bolt 109. The mounting bolt 110 passes through the connecting seat 104 and is threadedly connected to another stair handrail 101, fixing the other stair handrail 101 to the connecting seat 104.
[0039] Meanwhile, the through groove 111 extends along the length of the stair handrail 101; the mounting hole 112 is located at the center of the stair handrail 101 and mates with the mounting bolt 110; the mounting groove 113 is located on the surface of the stair handrail 101. There are multiple through grooves 111, each extending along the length of the stair handrail 101, reducing the weight of the stair handrail 101. The mounting hole 112 is located at the center of the stair handrail 101 and is threadedly connected to the mounting bolt 110. The mounting groove 113 is used for engaging the locking component.
[0040] Furthermore, the first arc surface 114 is located on the side of the base 102 near the stair handrail 101 and mates with the surface of the stair handrail 101; the second arc surface 115 is located on the side of the base 102 near the base rotating seat 103 and mates with the surface of the base rotating seat 103; the third arc surface 116 is located on the side of the connecting seat 104 near the base rotating seat 103 and mates with the surface of the base rotating seat 103. The first arc surface 114 ensures that the base 102 fits snugly against the stair handrail 101, guaranteeing aesthetics; the second arc surface 115 allows the base 102 to rotate for the base rotating seat 103; and the third arc surface 116 allows the base rotating seat 103 to rotate for the base rotating seat 103, guaranteeing aesthetics.
[0041] Using a step tube connector of this embodiment, the base 102 is first connected to the locking seat 106 by the connecting bolt 105. At this time, the spring piece 107 is fixed on the locking seat 106. Then, the spring piece 107 is pressed, and the spring piece 107 and the locking seat 106 are inserted together into the mounting groove 113. The elastic force of the spring piece 107 abuts against the inner wall of the mounting groove 113, thereby fixing the base 102 to a stair handrail 101. At this time, the first arc surface 114 fits against the surface of the stair handrail 101, resulting in an aesthetically pleasing installation. Then, the installation... Bolt 110 connects the connecting seat 104 to another stair handrail 101. According to the installation requirements, the base rotating seat 103 is first installed on the base 102 through the first countersunk bolt 108, or the base rotating seat 103 is first installed on the connecting seat 104 through the second countersunk bolt 109. At this time, the two stair handrails 101 can rotate. After adjusting the bending angle, the first countersunk bolt 108 or the second countersunk bolt 109 is locked. The installation is completed, so that the two stair handrails 101 can be bent. The installation is convenient and beautiful, and the application range is wider.
[0042] The second embodiment of this application is as follows:
[0043] Based on the first embodiment, please refer to Figure 6 ,in, Figure 6 This is a step diagram illustrating the installation method of the stair tread connector according to the second embodiment of the present invention. The installation method of the stair tread connector according to this embodiment includes the following steps:
[0044] S201: Assemble the locking component, base 102 and base rotating seat 103;
[0045] S202: After assembly, press the spring piece 107 and insert the locking seat 106 and the spring piece 107 together into a stair handrail 101;
[0046] S203: Assemble the connecting seat 104 with another stair handrail 101;
[0047] S204: After assembly, place the connecting seat 104 close to the base rotating seat 103 and rotate to adjust the angle of the connecting seat 104;
[0048] S205: After adjustment, use the second countersunk bolt 109 to lock the connecting seat 104 and the base rotating seat 103, and the installation is complete.
[0049] Specifically, the locking member is connected to the base 102 via the connecting bolt 105, and the base rotating seat 103 is connected to the base 102 via the first countersunk bolt 108. Then, the spring piece 107 is pressed down, causing the spring piece 107 and the locking seat 106 to engage together in the mounting groove 113 of one of the stair handrails 101. The spring force of the spring piece 107 is restored, causing the spring piece 107 to abut against the inner wall of the mounting groove 113, thereby installing the base 102 onto one of the stair handrails 101. Then, the connecting seat 104 is connected to another stair handrail 101 by the mounting bolt 110, so that the second countersunk bolt 109 passes through the connecting seat 104 and the base rotating seat 103. When the second countersunk bolt 109 does not abut against the connecting seat 104, the connecting seat 104 can rotate along the rotation, which facilitates the adjustment of the bending angle. After the adjustment is completed, the second countersunk bolt 109 is rotated to abut against the connecting seat 104, and the installation is completed, realizing the bending installation between the two stair handrails 101, which has a wider range of applications.
[0050] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A connecting piece for a step pipe, comprising a stair handrail, characterized in that, a connecting assembly is further included; the connecting assembly comprises a locking member, a base, a rotating seat, a connecting seat and a mounting member, the locking member is connected with the stair handrail, the base is connected with the locking member, the rotating seat is located on the side of the base away from the locking member, and the connecting seat is connected with the rotating seat through the mounting member; the locking member comprises a connecting bolt, a clamping seat and a spring piece, the connecting bolt is threadedly connected with the base and penetrates through the base, the clamping seat is connected with the connecting bolt and clamped with the stair handrail, and the end of the spring piece is fixedly connected with the clamping seat; the mounting member comprises a first countersunk bolt, a second countersunk bolt and a mounting bolt, the first countersunk bolt is threadedly connected with the rotating seat and penetrates through the base, the second countersunk bolt is threadedly connected with the rotating seat and penetrates through the connecting seat, and the mounting bolt is threadedly connected with the stair handrail and penetrates through the connecting seat.
2. The connecting piece for a step pipe according to claim 1, characterized in that, the stair handrail has a through slot, a mounting hole and a mounting slot, the through slot penetrates through the length direction of the stair handrail, the mounting hole is located at the center of the stair handrail and matched with the mounting bolt, and the mounting slot is located on the surface of the stair handrail.
3. The connecting piece for a step pipe according to claim 1, characterized in that, the base has a first arc surface and a second arc surface, the first arc surface is located on the side of the base close to the stair handrail and matched with the surface of the stair handrail, the second arc surface is located on the side of the base close to the rotating seat and matched with the surface of the rotating seat, and the connecting seat has a third arc surface, the third arc surface is located on the side of the connecting seat close to the rotating seat and matched with the surface of the rotating seat.
4. A method of installing a step pipe connector, suitable for use with a step pipe connector as claimed in claim 1, characterised in that, comprising the following steps: assembling the locking member, the base and the rotating seat; pressing the spring piece after the assembly is completed, and clamping the clamping seat and the spring piece into a stair handrail together; assembling the connecting seat with another stair handrail; after the assembly is completed, the connecting seat is close to the rotating seat, and the angle of the connecting seat is adjusted by rotating; after the adjustment is completed, the connecting seat is locked with the rotating seat by the second countersunk bolt, and the assembly is completed.
5. The method of claim 4, wherein the step of connecting the pipe sections is performed by a pipe section connecting member. assembling the locking member, the base and the rotating seat, the step further comprises: screwing the connecting bolt into the base and penetrating through the base; interference fitting the clamping seat on the end of the connecting bolt penetrating out of the base, at this time, the side wall of the clamping seat has been fixed with the spring piece; after the rotating seat is close to the base, the first countersunk bolt penetrates through the base and is screwed with the rotating seat until abutting against the surface wall of the base.
6. The method of claim 4, wherein the step of connecting the pipe sections comprises the steps of: providing a plurality of pipe sections; providing a plurality of pipe connectors; and connecting the pipe sections with the pipe connectors. assembling the connecting seat with another stair handrail, the step further comprises: after the end of another stair handrail is close to the connecting seat, the mounting bolt penetrates through the connecting seat and is screwed with the mounting hole until abutting against the surface wall of the connecting seat.
Citation Information
Patent Citations
A stair handrail connection structure and its straight tube stair handrail connector
CN103669758B
Stair tread template fixing device
CN219548395U
Joint set serving as connection tube
TWM296882U