Twisting type assembled guardrail

Abstract

The utility model discloses a twisting type assembled guardrail which comprises at least one transverse beam arranged transversely and a plurality of longitudinal beams arranged vertically at intervals, and a plurality of first connecting holes arranged at intervals are formed in the wall, attached to the longitudinal beams, of the transverse beam. Second connecting holes corresponding to the first connecting holes of the cross beams are formed in the walls, attached to the cross beams, of the longitudinal beams, connecting devices are installed between the first connecting holes and the second connecting holes in a penetrating mode, and after the longitudinal beams and the cross beams are connected through the connecting devices, the longitudinal beams can twist around the connecting devices by a set angle. The anti-corrosion device can avoid the Faraday shielding effect in electrostatic spraying, has better anti-corrosion performance, can adapt to different terrains such as slopes, and is wide in application range.

Description

Technical Field

[0001] The utility model relates to a twistable assembled guardrail. Background Art

[0002] At present, the known guardrails are made of iron, aluminum, stainless steel and other materials through welding. The welding guardrails are not only troublesome and costly to process, but also cause environmental pollution and harm to the health of relevant personnel due to the smoke and dust during welding. In addition, the welding process causes defects such as deformation and rust of pipe fittings, and the surface paint coating falls off seriously, resulting in high cost of later repair and maintenance, and also requires repainting and other processes in the later stage.

[0003] Most existing guardrails are assembled manually, that is, after multiple holes are opened on the beam, at least two beams are placed in parallel to align the holes on the two beams, and then each longitudinal beam is manually inserted into the corresponding hole. This method is labor-intensive and has low labor efficiency. After insertion, a welding machine is used to weld the insertion parts. Finally, the spraying process is carried out. Since there is a gap at the welding part, the Faraday shielding effect is inevitable in the electrostatic spraying, and some areas will not be attached with protective paint, so the anti-corrosion performance of the entire guardrail is poor.

[0004] The applicant has previously proposed structural products related to assembled guardrails, but during the trial development process, first, abnormal noises are prone to occur, and second, screws are prone to loosening, resulting in poor product quality. Utility Model Content

[0005] The utility model provides a twistable assembly guardrail to solve the above problems. The twistable assembly guardrail can avoid welding and be assembled directly through assembly equipment. The installation is stable and the Faraday shielding effect in electrostatic spraying can be avoided, so that it has better anti-corrosion performance. In addition, the cross beam and the longitudinal beam can be connected with a certain inclination angle to adapt to different terrains. It can also effectively avoid abnormal noise and ensure that the screws are not loose.

[0006] In order to solve the above technical problems, the utility model provides a twistable assembly guardrail with the following structure, which includes at least one transversely arranged crossbeam and multiple longitudinal beams arranged at intervals and vertically, and its structural characteristics are: a plurality of first connection holes arranged at intervals are provided on the wall where the crossbeam and the longitudinal beam are attached, and a second connection hole corresponding to the first connection hole of the crossbeam is provided on the wall where the longitudinal beam and the crossbeam are attached, and a connecting device is installed between the first connection hole and the second connection hole, and after the connecting device connects the longitudinal beam and the crossbeam, the longitudinal beam can be twisted around the connecting device to set an angle, and the connecting device includes a self-tapping screw extending into a first bolt hole in the crossbeam, the rear part of the self-tapping screw has a clamping head, and the front section has a self-tapping section, the self-tapping screw passes through the first connection hole and then passes through the self-tapping section to penetrate into the corresponding second connection hole, a silent friction plate is installed between the section of the crossbeam extending into the longitudinal beam and the inner wall of the longitudinal beam, and the section of the self-tapping screw passing through the first connection hole and the second connection hole is provided with a fixed connection layer that can fix the self-tapping screw passed through to the side walls of the longitudinal beam and the crossbeam.

[0007] The diameter of the second connecting hole is smaller than the diameter of the self-tapping section.

[0008] A self-lubricating washer is arranged on the inner surface of the rear end head of the self-tapping screw, and the self-lubricating washer is located between the rear end head and the longitudinal beam.

[0009] The spacings between adjacent second connection holes on a plurality of longitudinal beams are consistent, and the first connection holes on adjacent beams of more than two transverse beams are arranged correspondingly.

[0010] A base is installed at the bottom of the longitudinal beam, and the bottom of the longitudinal beam is connected to the base through a hinge seat.

[0011] The fixed connection layer is a colloid smeared on the outer surface of the self-tapping screw during the self-tapping screw installation process.

[0012] The colloid adopts epoxy resin adhesive.

[0013] Compared with the prior art, the above structure has the following advantages: since the longitudinal beam is attached to the cross beam, and the first connecting hole and the second connecting hole are correspondingly arranged, and after the connecting device connects the longitudinal beam and the cross beam, the longitudinal beam can be twisted around the connecting device to set an angle, thereby avoiding welding and directly assembling, and the installation is stable. It can be sprayed first and then assembled, which can effectively avoid the Faraday shielding effect in electrostatic spraying and make it have better anti-corrosion performance. After the cross beam and the longitudinal beam are connected, they can be twisted at a certain angle to adapt to different terrains such as slopes, and there is no need to set guardrails of different lengths separately.

[0014] In summary, the utility model has the advantages of stable and reliable installation, convenient and quick installation and good anti-corrosion performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 An enlarged structural diagram of the connection between the middle cross beam and the longitudinal beam;

[0017] Figure 3 It is a schematic diagram of the structure of a self-tapping screw;

[0018] Figure 4 It is a state diagram when assembling the guardrail in the prior art. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0020] refer to Figure 4 As shown, in the prior art, the crossbeam is pre-opened, and a plurality of insertion holes are opened on the crossbeam. The crossbeam is placed on a platform, and a single longitudinal beam is manually inserted into the insertion hole for assembly. After assembly, welding is performed at the X position in the figure, so that the crossbeam and the longitudinal beam are firmly connected to form a guardrail. Since the outer dimensions of the longitudinal beam and the dimensions of the insertion hole are very different (reaching about 0.5 mm), the insertion is very inconvenient, the labor efficiency is low and the labor intensity is high, and the welding part is prone to Faraday effect, rust and reduced product service life. And after the above welding, the angles of the crossbeam and the longitudinal beam are fixed, and cannot be installed in different terrains.

[0021] As attached Figure 1 and Figure 2As shown, the utility model provides an embodiment of a twistable assembled guardrail, which includes at least one horizontal beam 1 and a plurality of longitudinal beams 2 arranged at intervals and vertically. In this embodiment, the horizontal beam and the longitudinal beam are both made of square tubes. The utility model changes the structure of the horizontal beam and the longitudinal beam in the original guardrail, and adopts a method of sticking the horizontal beam and the longitudinal beam together. The wall where the horizontal beam 1 sticks to the longitudinal beam is provided with a plurality of first connection holes arranged at intervals, and the wall where the longitudinal beam 2 sticks to the horizontal beam 1 is provided with a second connection hole arranged corresponding to the first connection hole of the horizontal beam. A connecting device is installed between the first connecting hole and the second connecting hole, and after the connecting device connects the longitudinal beam 2 and the cross beam 1, the longitudinal beam can be twisted around the connecting device to set an angle. In this embodiment, the connecting device includes a self-tapping screw 4 extending into the first bolt hole in the cross beam 1, the rear portion of the self-tapping screw has a clamping head, and the front portion has a self-tapping section. The self-tapping screw passes through the first connecting hole and then passes through the self-tapping section to penetrate into the corresponding second connecting hole. A self-lubricating washer 8 is installed on the inner surface of the rear end head of the self-tapping screw 4, and the self-lubricating washer 8 is located between the rear end head and the longitudinal beam. The diameter of the second connecting hole is smaller than the diameter of the self-tapping section, and the diameter of the first connecting hole is greater than or equal to the diameter of the self-tapping screw. After the self-tapping screw is tapped, the longitudinal beam and the cross beam are connected and tightened. When in use, they can be twisted around the self-tapping screw, so that the angle between the longitudinal beam and the cross beam can be adjusted, which is convenient for use on various terrains. This structure no longer requires welding structure between longitudinal beams and cross beams, so the outer wall of the square tube can be sprayed before assembly, avoiding the Faraday shielding effect in electrostatic spraying, making the entire guardrail have better anti-corrosion performance. The advantage of spraying is that it can avoid the problem of inadequate or uneven spraying. Correspondingly, paint powder will be evenly attached to the walls of the above-mentioned holes, thereby greatly enhancing the anti-corrosion performance of the guardrail.

[0022] As shown in the accompanying drawings, a silent friction plate 9 is installed between the section of the cross beam extending into the longitudinal beam (hereinafter referred to as the insertion section) and the inner wall of the longitudinal beam. The structure of the silent friction plate is as follows: Figure 3 As shown in , its outer wall fits with the inner wall of the longitudinal beam and can be a straight surface, and its inner wall fits with the outer wall of the above-mentioned insertion section and can be an inclined surface that gradually becomes thicker from the insertion end inward. Therefore, it can prevent the crossbeam from shaking and prevent rainwater from entering the above-mentioned port to ensure the service life of the entire guardrail.

[0023] As shown in the accompanying drawings, the section where the self-tapping screw passes through the first connection hole and the second connection hole is provided with a fixed connection layer that can fix the self-tapping screw to the side walls of the longitudinal beam and the cross beam. The fixed connection layer is a colloid applied to the outer surface of the self-tapping screw during the self-tapping screw installation process, and the colloid is an epoxy resin adhesive. Epoxy resin adhesives such as sealants and structural adhesives on the market can be used. Before the above installation process, the above colloid-like epoxy resin adhesive is applied to the corresponding section of the self-tapping screw. After the installation process is completed, the epoxy resin adhesive is cured, thereby fixing the self-tapping screw to the side walls of the longitudinal beam and the cross beam.

[0024] As shown in the attached drawings, after multiple longitudinal beams and transverse beams are installed, a base 6 is installed at the bottom of the longitudinal beam, and the bottom of the longitudinal beam 2 is connected to the base 6 through a hinge seat 7. On the ground with different heights, the longitudinal beam can be twisted around the bolt to set the angle, and finally the longitudinal beam at the end (external fixing frame) is fixedly connected to ensure that the installation of the entire guardrail is completed.

[0025] The above is a specific structural form of the utility model. The utility model is not limited by the above embodiments. For those skilled in the art, equivalent changes and component replacements based on the specific structure of the utility model are all within the protection scope of the utility model.

Claims

1. A twistable assembly guardrail, comprising at least one transverse beam (1) arranged transversely and a plurality of longitudinal beams (2) arranged at intervals and vertically, wherein: A plurality of first connection holes are arranged at intervals on the wall of the cross beam (1) in contact with the longitudinal beam, and a second connection hole is arranged corresponding to the first connection hole of the cross beam on the wall of the longitudinal beam (2). A connection device is installed between the first connection hole and the second connection hole, and after the longitudinal beam (2) and the cross beam (1) are connected by the connection device, the longitudinal beam can be twisted around the connection device to set an angle, and the connection device includes a self-tapping screw extending into the first bolt hole in the cross beam (1), the rear portion of the self-tapping screw having a clamping head and the front portion having a self-tapping section, the self-tapping screw passes through the first connection hole and then through the self-tapping section into the corresponding second connection hole, a silent friction plate is installed between the section of the cross beam extending into the longitudinal beam and the inner wall of the longitudinal beam, and a fixing connection layer is provided on the section of the self-tapping screw passing through the first connection hole and the second connection hole, which can fix the self-tapping screw to the side walls of the longitudinal beam and the cross beam.

2. The twistable assembly guardrail according to claim 1, characterized in that: The diameter of the second connecting hole is smaller than the diameter of the self-tapping section.

3. The twistable assembly guardrail according to claim 1, characterized in that: A self-lubricating washer (8) is arranged on the inner surface of the rear end head of the self-tapping screw, and the self-lubricating washer (8) is located between the rear end head and the longitudinal beam.

4. The twistable assembly guardrail according to claim 1, characterized in that: The spacing between adjacent second connection holes on the plurality of longitudinal beams (2) is consistent, and when more than two transverse beams (1) are provided, the first connection holes on adjacent transverse beams (1) are provided correspondingly.

5. The twistable assembly guardrail according to any one of claims 1 to 4, characterized in that: A base (6) is installed at the bottom of the longitudinal beam, and the bottom of the longitudinal beam (2) is connected to the base (6) via a hinge seat (7).

6. The twistable assembly guardrail according to any one of claims 1 to 4, characterized in that: The section of the crossbeam extending into the longitudinal beam is called an insertion section. The outer wall of the silent friction plate is in contact with the inner wall of the longitudinal beam, and its inner wall is in contact with the outer wall of the insertion section, and it gradually becomes thicker from the insertion end inward.

7. The twistable assembly guardrail according to any one of claims 1 to 4, characterized in that: The fixed connection layer is a colloid smeared on the outer surface of the self-tapping screw during the self-tapping screw installation process.

8. The twistable assembly guardrail according to claim 7, characterized in that: The colloid adopts epoxy resin adhesive.

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