Protective fence profile invisible connecting structure

Abstract

The utility model discloses a protective fence section bar invisible connecting structure which comprises a first section bar pipe, a second section bar pipe and an invisible plug, the invisible plug is fixed on the outer surface of the first section bar pipe through a bolt, the second section bar pipe is connected on the invisible plug in a sleeved mode, and the first section bar pipe is connected with the second section bar pipe in a sleeved mode. The cross section structure of the first profile pipe is consistent with that of the second profile pipe, clamping cavities are symmetrically formed in the inner wall of the first profile pipe and the inner wall of the second profile pipe, the invisible plug is provided with clamping columns extending into the clamping cavities, and the clamping columns are in interference fit with the clamping cavities. By means of the unique structural design of the invisible plug, connection between two profile pipes can be achieved mainly through the invisible plug, bolts cannot be exposed on the outer surfaces of the profile pipes, and therefore the invisible connection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, and more specifically to an invisible connection structure for guardrail profiles. Background Art

[0002] In some indoor guardrails, the guardrail is usually composed of two vertical profiles combined with multiple horizontal profiles fixed by bolts. Between the horizontal profiles, frames of various shapes of profiles are usually required, such as a T-shaped structure. For the T-shaped structure, two shorter profiles need to be butted. At this time, if the butt joint is directly carried out in the form of bolts, the bolts will be exposed on the outer surface of the horizontal profile. Therefore, an invisible connection structure is needed to realize that the bolts are not exposed on the outer surface of the profile and can be butted together. Summary of the Utility Model

[0003] The main purpose of the utility model is to solve the above problems and provide an invisible connection structure for guardrail profiles.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An invisible connection structure for guardrail profiles includes a first profile tube, a second profile tube and an invisible plug. The invisible plug is fixed on the outer surface of the first profile tube by bolts. The second profile tube is sleeved on the invisible plug. The cross-sectional structures of the first profile tube and the second profile tube are the same. Clamping cavities are symmetrically arranged on the inner walls of the tubes of the first profile tube and the second profile tube. The invisible plug is provided with clamping columns extending into the clamping cavities, and the clamping columns and the clamping cavities are in interference fit.

[0006] The cross-sectional shape of the clamping cavity is an open ring, and the cross-sectional shape of the clamping column is circular.

[0007] Two through holes are arranged on the outer surface of the first profile. The clamping columns of the invisible plug are extended with clamping parts that can extend into the two through holes.

[0008] The beneficial effect of the utility model is as follows:

[0009] Through the unique structural design of the utility model, the invisible plug of the utility model can realize the connection between two profile tubes without exposing the bolts on the outer surface of the profile tubes, thereby achieving the effect of invisible connection. Description of the Drawings

[0010] Figure 1 It is an exploded view of the utility model.

[0011] Figure 2 It is the front view of the utility model

[0012] Figure 3 For Figure 2 the schematic cross-sectional structure of A-A in

[0013] Figure 4 the schematic diagram of the structure where the positioning column extends and is provided with a positioning part. Detailed implementation manners

[0014] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0015] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used herein in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0017] As Figures 1 to 4 shown, a hidden connection structure for a guardrail profile provided by the present utility model includes a first profile tube 10, a second profile tube 20 and a hidden plug 30. The hidden plug 30 is fixed on the outer surface of the first profile tube 10 by a bolt A. The second profile tube 10 is sleeved on the hidden plug 30 to dock the two profiles together to form a T-shaped structure. The cross-sectional structures of the first profile tube 10 and the second profile tube 20 are the same. Positioning cavities 11 are symmetrically arranged on the inner walls of the first profile tube 10 and the second profile tube 20. The hidden plug 30 is provided with a positioning column 31 extending into the positioning cavity 11. The positioning column 31 and the positioning cavity 11 are in interference fit to prevent the second profile tube sleeved on the hidden plug 30 from shaking.

[0018] In this embodiment, the cross-sectional shape of the positioning cavity 11 is an open ring, and the cross-sectional shape of the positioning column 31 is a circle.

[0019] In this embodiment, in order to prevent the invisible plug 30 from wobbling after being fixed on the outer surface of the first profile tube 10, two through holes 12 are provided on the outer surface of the first profile 10, and a clamping portion 32 that can extend into the two through holes 12 is provided on the clamping column 31 of the invisible plug 30.

[0020] What the present utility model aims to achieve is that through the unique structural design of the present utility model, the invisible plug of the present utility model can realize the connection between two profile tubes without exposing bolts on the outer surface of the profile tubes, thereby achieving the effect of invisible connection.

[0021] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A guardrail profile invisible connection structure, characterized in that: It includes a first profile tube, a second profile tube and an invisible plug, the invisible plug is fixed to the outer surface of the first profile tube by bolts, the second profile tube is sleeved on the invisible plug, the cross-sectional structure of the first profile tube is consistent with that of the second profile tube, the inner walls of the first profile tube and the second profile tube are symmetrically provided with retaining cavities, the invisible plug is provided with a retaining column extending into the retaining cavity, and the retaining column is interference fit with the retaining cavity.

2. The invisible connection structure of guardrail profiles according to claim 1, characterized in that: The cross-sectional shape of the locking cavity is an open circular ring, and the cross-sectional shape of the locking post is a circle.

3. The invisible connection structure of guardrail profiles according to claim 2, characterized in that: The outer surface of the first profile is provided with two through holes, and the positioning column of the invisible plug is extended to be provided with a positioning portion that can extend into the two through holes.

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