Connecting device for stand column and handrail pipe of stair guardrail

Abstract

The utility model discloses a connecting device for a stair guardrail stand column and a handrail pipe, and belongs to the technical field of building stair handrail accessories. The connecting device is mainly used for connecting a guardrail stand column pipe and a guardrail handrail pipe and comprises a flange plate and a movable joint, the flange plate is fixed to the guardrail stand column pipe through a bolt or a rivet nut, a connector is arranged on the flange plate, and the movable joint comprises a first adapter and a second adapter which are connected in a hinged mode. The first adapter is detachably connected with the connector, the second adapter is provided with a sleeve used for containing a guardrail handrail pipe, and the sleeve is connected with the guardrail handrail pipe in a sleeved mode. The guardrail stand column pipe and the guardrail handrail pipe are convenient to disassemble and assemble, disassembly, assembly and maintenance are easy and convenient, the labor cost is reduced, replacement can be conducted according to needs during maintenance, and the material cost is reduced.

Description

Technical Field

[0001] The utility model relates to a connecting device, in particular to a connecting device for a stair guardrail column and a handrail pipe, belonging to the technical field of building stair handrail matching devices. Background Art

[0002] Guardrails are typically installed on the outside of stairs, primarily for stair enclosures, providing separation, protection, and decoration. They come in a wide variety of types and forms, and their materials vary, including metal, glass, wood, plastic, and stone. The connection between the handrail and the column is crucial for the stability and reliability of the guardrail. Quickly connecting the handrail and column also reduces on-site assembly labor costs.

[0003] Traditional metal stair handrails usually use welding to connect the surface pipes or handrail pipes to the columns. Due to certain limitations in terms of aesthetics, durability, corrosion resistance, and manual manufacturing and assembly costs, they are gradually not accepted by the market. Moreover, after welding, the stair handrail is fixed and the structure cannot be changed. It cannot be adjusted and connected according to actual needs, resulting in certain limitations in use, and subsequent maintenance, replacement of parts, or disassembly is also inconvenient. If a plug-in assembly structure is used, it is usually necessary to punch holes in the structure of the handrail for plugging in, which destroys the overall structure. In addition, it is necessary to measure the spacing of the columns and other data first, design the punching positions, and then manufacture according to needs. The production process is relatively complicated. In addition, the above-mentioned stair handrail structure is fixed. When the slopes of different stairs are different, the angle of the plug interface will deviate and cannot be installed. Therefore, for stairs with different slopes, targeted production is usually required, and the versatility is poor, resulting in a high cost for the stair handrail production.

[0004] Another approach is to use a connector between the handrail and the column, which is more flexible and convenient. However, the existing connectors used to connect the stair guardrail column to the handrail tube are still not convenient enough when assembling, replacing, maintaining, and disassembling the stair guardrail. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a connecting device for a stair guardrail upright and a handrail pipe.

[0006] The technical solution adopted by this utility model is to design a connecting device for stair guardrail posts and handrail tubes, which is used to connect the guardrail post tubes and the guardrail handrail tubes. The guardrail post tubes are respectively installed at both ends of the guardrail handrail tube. The device comprises a flange plate and a flexible joint. The flange plate is fixed to the guardrail post tube by bolts or rivet nuts. The flange plate is provided with a connector. The flexible joint includes a first adapter and a second adapter that are hingedly connected. The first adapter is detachably connected to the connector. The second adapter is provided with a sleeve for receiving the guardrail handrail tube, and the sleeve is sleeved with the guardrail handrail tube.

[0007] Furthermore, the connecting head described in this design has the same structure as the end of the guardrail handrail tube, and the first adapter is also provided with a sleeve for receiving the connecting head. The connecting head and the guardrail handrail tube are respectively sleeved in the sleeves on the first adapter and the second adapter.

[0008] Furthermore, in this design, the first adapter can be moved axially along the connecting head and locked at any position, thereby driving the second adapter to separate from the guardrail handrail tube.

[0009] Furthermore, the present design also includes an adjusting sleeve, the connecting head is threadedly connected to the adjusting sleeve, the adjusting sleeve is connected to the first adapter, and the adjusting sleeve can be rotated along the connection with the first adapter, so that the first adapter can be moved axially along the connecting head by rotating the adjusting sleeve.

[0010] Furthermore, in the present design, an annular groove is provided on the first adapter, and a ring is provided on the inner side of one end of the adjusting sleeve, and the ring is clamped in the annular groove.

[0011] Furthermore, in this design, the distance that the first adapter can move axially along the connector is not less than the depth of the sleeve on the second adapter.

[0012] Furthermore, the present design also includes a protective sleeve, which is sleeved on the connector and clamped between the flange plate and the adjusting sleeve, and the protective sleeve is an elastic rubber sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model provides a connection device in the form of a combination of a flange plate and a flexible joint, which is convenient for use between the guardrail column tube and the guardrail handrail tube of the stair guardrail. The connection is more flexible and convenient, and it is more convenient to assemble, replace, maintain and disassemble the stair guardrail.

[0015] In addition, the utility model also provides an adjustment sleeve between the connecting head and the flexible joint, which further facilitates the disassembly and assembly of the guardrail column tube and the guardrail handrail tube. The disassembly and assembly and maintenance are simple and convenient, reducing labor costs, and can be replaced as needed during maintenance, reducing material costs.

[0016] The utility model makes the construction of the stair guardrail quick, has low requirements on the ability of skilled workers, can be installed and formed in one time, and has good market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the axonometric drawing of the utility model.

[0019] Figure 2 It is a schematic cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the utility model after the protective cover is hidden.

[0021] Figure 4 This is a schematic diagram of a flexible joint of the present utility model.

[0022] Figure 5 This is a schematic diagram of the axonometric drawing used for the installation of this utility model.

[0023] Figure 6 This is a schematic cross-sectional view of the installation and use of the utility model.

[0024] In the figure: 1. Guardrail column tube; 2. Guardrail handrail tube; 3. Flange plate; 4. Flexible joint; 5. Connector; 6. First adapter; 7. Second adapter; 8. Adjustment sleeve; 9. Annular groove; 10. Ring; 11. Protective cover. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] Example 1

[0028] A connecting device for stair guardrail columns and handrail pipes, the connecting device is used to connect the guardrail column pipe 1 and the guardrail handrail pipe 2. Usually, the connecting device is used to connect the guardrail column pipe 1 at both ends of the guardrail handrail pipe 2, so as to facilitate the assembly, subsequent replacement, maintenance and removal of the entire stair guardrail. Figure 1-4 As shown, the connecting device includes a flange plate 3 and a flexible joint 4, and at least one connecting hole is provided at each end of the flange plate 3. The flange plate 3 is fixed to the guardrail column tube 1 by bolts or rivet nuts (the bolt or rivet nut connection structure is not shown in the accompanying drawings, and the existing technology can be used). The flange plate 3 is provided with a connecting head 5 protruding from the surface of the flange plate 3, and the flexible joint 4 includes a first adapter 6 and a second adapter 7 that are hingedly connected. The first adapter 6 is detachably connected to the connecting head 5, and the second adapter 7 is provided with a sleeve for receiving the guardrail handrail tube 2, and the sleeve is sleeved with the guardrail handrail tube 2.

[0029] As can be seen from the above, the connection device described in this embodiment is a detachable, split structure. During use, the flange plate 3 can be first fixed to the guardrail column tube 1, and then the flexible joint 4 and guardrail handrail tube 2 can be installed. This structural arrangement facilitates assembly and disassembly, greatly improving construction efficiency and reducing labor costs. It also provides a flexible and simple connection, combining aesthetics with durability, and has good versatility. When assembled and used, the guardrail structure maintains good integrity.

[0030] Example 2

[0031] This embodiment, based on Example 1, provides a structural arrangement (not shown in the accompanying drawings) in which a first adapter 6 is detachably connected to a connector 5. Specifically, the connection device described in this embodiment has a connector 5 having the same structure as the end of the guardrail handrail tube 2, such as a flat tube, a rectangular tube, or a square tube. The first adapter 6 is also provided with a sleeve for receiving the connector 5. The connector 5 and the guardrail handrail tube 2 are respectively sleeved within the sleeves on the first adapter 6 and the second adapter 7. This achieves a detachable connection between the first adapter 6 and the connector 5, and also facilitates the quick disassembly and assembly of the flexible joint 4 with the connector 5 and the guardrail handrail tube 2.

[0032] Example 3

[0033] This embodiment, based on Example 1, provides another structural arrangement for a detachable connection between a first adapter 6 and a connector 5. In the connection device disclosed in this embodiment, first, the first adapter 6 can be moved axially along the connector 5 and locked at any position, thereby driving the second adapter 7 to detach from the guardrail tube 2 or to securely connect the second adapter 7 to the guardrail tube 2. This structural arrangement of the first adapter 6 and connector 5 facilitates the individual replacement or disassembly of the guardrail tube 2, particularly for stair guardrail structures that have already been assembled or are in use, without having to dismantle or affect other guardrail structures, thus providing greater convenience.

[0034] One of the specific implementation methods of the structure described in this embodiment is: an adjusting sleeve 8 is added to the connecting device, and the connecting head 5 is threadedly connected to the adjusting sleeve 8. Specifically, the connecting head 5 is set to a circular tube structure, and a thread is set on its outer surface, and a matching thread is set on the inner surface of the adjusting sleeve 8, and the two can be threadedly connected; the adjusting sleeve 8 is connected to the first adapter 6, and the adjusting sleeve 8 can be rotated along the connection with the first adapter 6. By rotating the adjusting sleeve 8, it is moved axially along the connecting head 5, thereby driving the first connecting head 5 or the flexible joint 4 to realize the axial movement of the first adapter 6 or the flexible joint 4 along the connecting head 5, thereby realizing the assembly or disengagement of the second adapter 7 with the guardrail handrail tube 2.

[0035] The second specific implementation method of the structure described in this embodiment (not shown in the drawings) is: a sleeve structure can be set on the first adapter 6, that is, the structural setting form in Example 2, and then a screw is threadedly connected to one side of the first adapter 6, and one end of the screw is rotatably connected to the flange plate 3. By rotating the screw, the first adapter 6 can also be driven to move axially along the connecting head 5 and locked at any position.

[0036] Example 4

[0037] This embodiment is based on Example 3 and provides a structural setting form for the adjustment sleeve 8 to rotate along the connection with the first adapter 6. Specifically, an annular groove 9 is provided on the first adapter 6, and a ring 10 is provided on the inner side of one end of the adjustment sleeve 8. The ring 10 is clamped in the annular groove 9, and the two are nested and clamped, so that the adjustment sleeve 8 can rotate along the connection with the first adapter 6 without being separated.

[0038] Example 5

[0039] This embodiment further optimizes and refines the structure of the connecting device based on the third embodiment, specifically:

[0040] The connecting device described in this embodiment has a first adapter 6 that can move axially along the connecting head 5 by a distance not less than the depth of the sleeve on the second adapter 7, so as to ensure that the guardrail handrail tube 2 can be separately disassembled and assembled after the guardrail is assembled or in use.

[0041] Example 6

[0042] This embodiment further optimizes and refines the structure of the connecting device based on the third embodiment, specifically:

[0043] The connection device described in this embodiment also includes a protective sleeve 11, which is an elastic rubber sleeve. This sleeve is placed over the connector 5 and is positioned between the flange plate 3 and the adjustment sleeve 8. The elastic rubber sleeve shields and protects the exposed threads of the connector 5, facilitating adjustment of the adjustment sleeve 8. Furthermore, the elastic rubber sleeve can expand and contract during the movement of the adjustment sleeve 8, thus preventing it from obstructing the axial movement of the adjustment sleeve 8 along the connector 5.

[0044] Working principle:

[0045] Stair guardrails are usually connected to the guardrail column pipe 1 at both ends of the guardrail handrail pipe 2 using the connecting device, such as Figure 5-6 As shown. When using the present utility model, first fix the two guardrail post tubes 1, then install the flange plates 3 on the adjacent sides of the two guardrail post tubes 1 respectively, put the protective sleeve 11 on the connecting head 5, and then install the flexible joint 4 with the adjusting sleeve 8 on the connecting head 5 of the flange plate 3, and then respectively connect the two ends of the guardrail handrail tube 2 to the connecting devices on the two guardrail post tubes 1, and adjust the position of the adjusting sleeve 8 so that the guardrail handrail tube 2 is firmly fixed and will not loosen. When the entire guardrail needs to be removed, the position of the adjusting sleeve 8 can be adjusted, and the guardrail handrail tube 2 can be removed first, and then the guardrail post tube 1 can be removed. If only part of the structure in the guardrail needs to be maintained or replaced, the position of the adjusting sleeve 8 can also be adjusted, and the guardrail handrail tube 2 can be removed first, and then each structure can be maintained or replaced as needed, which is convenient to use.

[0046] In addition, in the description of the present invention, unless otherwise specified, the terms "multiple," "multiple roots," and "multiple groups" mean two or more, and "several," "several roots," and "several groups" mean one or more. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inside," and "outside" used to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. These are intended solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third" used are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0047] The specific embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A connecting device for stair guardrail columns and handrail tubes, used for connecting guardrail column tubes and guardrail handrail tubes, with guardrail column tubes respectively provided at both ends of the guardrail handrail tube, characterized in that: It includes a flange plate and a flexible joint, the flange plate is fixed to the guardrail column tube by bolts or rivet nuts, the flange plate is provided with a connecting head, the flexible joint includes a first adapter and a second adapter that are hingedly connected, the first adapter is detachably connected to the connecting head, and the second adapter is provided with a sleeve for receiving the guardrail handrail tube, and the sleeve is sleeved with the guardrail handrail tube.

2. The connecting device according to claim 1, characterized in that: The connecting head has the same structure as the end of the guardrail handrail tube. The first adapter is also provided with a sleeve for receiving the connecting head. The connecting head and the guardrail handrail tube are respectively sleeved in the sleeves on the first adapter and the second adapter.

3. The connecting device according to claim 1, wherein: The first adapter can move axially along the connector and be locked at any position, thereby driving the second adapter to separate from the guardrail handrail tube.

4. The connecting device according to claim 3, characterized in that: It also includes an adjusting sleeve, the connecting head is threadedly connected to the adjusting sleeve, the adjusting sleeve is connected to the first adapter, and the adjusting sleeve can be rotated along the connection with the first adapter, and the first adapter can be moved axially along the connecting head by rotating the adjusting sleeve.

5. The connecting device according to claim 4, characterized in that: An annular groove is provided on the first adapter, and a collar is provided on the inner side of one end of the adjusting sleeve, and the collar is clamped in the annular groove.

6. The connecting device according to claim 5, characterized in that: The distance that the first adapter can move axially along the connector is not less than the depth of the sleeve on the second adapter.

7. The connecting device according to claim 6, characterized in that: It also includes a protective sleeve, which is sleeved on the connecting head and clamped between the flange plate and the adjusting sleeve. The protective sleeve is an elastic rubber sleeve.

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