Base device for mounting steel trestle guardrail

Abstract

The utility model discloses a base device for installing a steel trestle guardrail, which comprises a guardrail upright post clamping seat, an L-shaped plate, a bolt and a nut, the guardrail upright post clamping seat is rectangular, and two side plates of the guardrail upright post clamping seat are provided with fixing holes; the two L-shaped plates are arranged on the two sides of the guardrail stand column clamping base, the two L-shaped plates are oppositely arranged, fixing holes are also formed in the L-shaped plates, the fixing holes in one side plate are aligned with the fixing holes in one L-shaped plate, each L-shaped plate comprises a parallel plate arranged in the horizontal direction, and a first gap is formed between the parallel plate and the guardrail stand column clamping base; bolts penetrate through the fixing holes, and nuts fix the relative positions of the L-shaped plates and the guardrail stand column clamping bases. According to the utility model, the bolts and the nuts are adopted, so that the fine adjustment effect is better, and the non-universality of the fixed guardrail base is solved. According to the utility model, integrated assembly is adopted, on-site installation by constructors is more convenient, the constructors do not need to span out of the bridge deck slab for installation, and the safety of the operators is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel trestle bridges, in particular to a base device for installing guardrails of steel trestle bridges. Background Art

[0002] Fully prefabricated steel trestles are a mainstream option in bridge and cofferdam projects, and their current application scenarios are quite extensive. With the increasing number of bridge and cofferdam projects in my country, the variety of materials used in prefabricated steel trestles is also increasing. For example, the types of distribution beams used in steel trestles vary. Conventionally, 22# or 25# steel structural plates are used as distribution beams for steel trestles, but now, 20#, 22#, 25#, and even 16# steel structural plates are increasingly being introduced. Typically, steel trestle guardrails are installed on the surface of the distribution beams. Guardrail posts are attached to the distribution beams using a connecting device, or the guardrail posts are directly welded to the bridge deck or distribution beam surface. Direct welding can cause severe damage to the distribution beam and bridge deck surfaces, and can easily cause wear and tear on the guardrail posts during removal. Long-term use of this method can render the guardrail posts unusable. Furthermore, damage to the distribution beam and bridge deck surfaces can negatively impact the aesthetics. Using a prefabricated connecting device to connect and secure the distribution beams and guardrail posts is both convenient and harmless. However, as the types of distribution beams increase, the assembled connection device cannot be universally used and it is difficult to achieve an assembly effect. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a base device for installing a steel trestle guardrail.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A base device for installing a steel trestle guardrail, comprising:

[0006] The guardrail post holder is rectangular and has fixing holes on its two side panels;

[0007] L-shaped plates, two of which are provided on both sides of the guardrail post holder, the two L-shaped plates being arranged opposite to each other, the L-shaped plates also having fixing holes, the fixing holes on one of the side plates being aligned with the fixing holes on one of the L-shaped plates, the L-shaped plates comprising a parallel plate arranged in a horizontal direction, a first gap being formed between the parallel plate and the guardrail post holder;

[0008] Bolts and nuts, the bolts pass through the fixing holes, and the nuts fix the relative positions of the L-shaped plate and the guardrail column holder.

[0009] The above-mentioned base device for installing the steel trestle guardrail, wherein a second gap is provided between the two parallel plates, and the first gap and the second gap are combined to form a slot.

[0010] The above-mentioned base device for installing steel trestle guardrails, wherein the L-shaped plate includes: the parallel plate and the vertical plate, the parallel plate is connected to the vertical plate, the parallel plate is perpendicular to the vertical plate, the two vertical plates are arranged opposite to each other, the two vertical plates are arranged on both sides of the guardrail column holder, and the two parallel plates are arranged below the guardrail column holder.

[0011] The above-mentioned base device for installing steel trestle guardrails, wherein the two parallel plates are located at the same horizontal height, the two vertical plates are also located at the same horizontal height, there is a bending portion between the parallel plates and the vertical plates, and the two bending portions are arranged opposite to each other.

[0012] The above-mentioned base device for installing the steel trestle guardrail, wherein a third gap is provided between the vertical plate and the side plate, and the diameter of the third gap is smaller than the diameter of the second gap.

[0013] The above-mentioned base device for installing the steel trestle guardrail also includes: a washer, which is sleeved on the bolt, the washer is arranged in the third gap, one end of the washer is against the side plate, and the other end of the washer is against the inner wall of the vertical plate.

[0014] The above-mentioned base device for installing the steel trestle guardrail, wherein a rectangular groove is provided on the side plate of the guardrail column holder.

[0015] The above-mentioned base device for installing the steel trestle guardrail, wherein an I-shaped groove is provided on the end surface of the guardrail column holder.

[0016] The above-mentioned base device for installing the steel trestle guardrail, wherein the end surface of the guardrail column holder is connected to the adjustable guardrail base.

[0017] The above-mentioned base device for installing steel trestle guardrails also includes: a distribution beam, the cross-section of the distribution beam is I-shaped, the upper part of the distribution beam has a wing plate, the upper surface of the wing plate abuts against the bridge deck, and the lower surface of the wing plate abuts against the upper surface of the parallel plate.

[0018] Due to the adoption of the above technology, the utility model has the following positive effects compared with the prior art:

[0019] (1) The present invention has a better fine-tuning effect by using bolts and nuts, and can apply pre-tightening force, thereby solving the non-universality of fixing the guardrail base and avoiding the inability to properly install the guardrail base due to the tolerance problem of the L-shaped plate.

[0020] (2) The utility model adopts an integrated assembly, which is more convenient for construction workers to install on site. Construction workers do not need to step outside the bridge deck for installation, which greatly improves the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of a base device for installing a steel trestle guardrail in use.

[0022] Figure 2 It is a schematic diagram of the assembly of the adjustable guardrail base of the utility model.

[0023] Figure 3 It is a schematic diagram of a base device for installing a steel trestle guardrail of the present invention.

[0024] Figure 4 This is the installation diagram of the base device for steel trestle guardrail installation of the utility model Figure 1 .

[0025] Figure 5 This is the installation diagram of the base device for steel trestle guardrail installation of the utility model Figure 2 .

[0026] In the attached figure: 1. Guardrail column holder; 11. Side plate; 12. End face; 2. L-shaped plate; 21. Parallel plate; 22. Vertical plate; 3. Bolt; 4. Nut; 5. Washer; 6. Distribution beam; 61. Wing plate. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention. Figure 1 It is a schematic diagram of the steel trestle of the present utility model; Figure 2 It is a schematic diagram of the assembly of the adjustable guardrail base of the utility model; Figure 3 This is a schematic diagram of a base device for installing a steel trestle guardrail according to the present invention; Figure 4 This is the installation diagram of the base device for steel trestle guardrail installation of the utility model Figure 1 ; Figure 5 This is the installation diagram of the base device for steel trestle guardrail installation of the utility model Figure 2 , see Figures 1 to 5As shown, a base device for installing a steel trestle guardrail in a preferred embodiment is shown, comprising: a guardrail column holder 1, an L-shaped plate 2, a bolt 3 and a nut 4, wherein the guardrail column holder 1 is rectangular, and fixing holes are provided on the two side plates 11 of the guardrail column holder 1; two L-shaped plates 2 are arranged on both sides of the guardrail column holder 1, and the two L-shaped plates 2 are arranged opposite to each other, and fixing holes are also provided on the L-shaped plates 2, and the fixing holes on one side plate 11 are aligned with the fixing holes on an L-shaped plate 2, and the L-shaped plate 2 includes a parallel plate 21 arranged in a horizontal direction, and a first gap is provided between the parallel plate 21 and the guardrail column holder 1; the bolt 3 passes through the fixing hole, and the nut 4 fixes the relative position of the L-shaped plate 2 and the guardrail column holder 1.

[0028] In a preferred embodiment, there is a second gap between the two parallel plates 21 , and the first gap and the second gap together form a slot.

[0029] In a preferred embodiment, the L-shaped plate 2 includes: a vertical plate 22 and a parallel plate 21 . The parallel plate 21 is connected to the vertical plate 22 , and the parallel plate 21 is perpendicular to the vertical plate 22 .

[0030] In a preferred embodiment, the two vertical plates 22 of the two L-shaped plates 2 are arranged opposite to each other, the two vertical plates 22 are arranged on both sides of the guardrail post holder 1, and the two parallel plates 21 are arranged below the guardrail post holder 1.

[0031] In a preferred embodiment, the two parallel plates 21 are located at the same horizontal height, and the two vertical plates 22 are also located at the same horizontal height. There is a bending portion between the parallel plates 21 and the vertical plates 22, and the two bending portions are arranged opposite to each other.

[0032] In a preferred embodiment, a third gap is provided between the vertical plate 22 and the side plate 11 , and a diameter of the third gap is smaller than a diameter of the second gap.

[0033] In a preferred embodiment, it further includes: a washer 5, which is sleeved on the bolt 3 and disposed in the third gap. One end of the washer 5 rests on the side plate 11, and the other end of the washer 5 rests on the inner wall of the vertical plate 22.

[0034] In a preferred embodiment, a rectangular groove is provided on the side plate 11 of the guardrail post holder 1 .

[0035] In a preferred embodiment, an I-shaped groove is provided on the end surface 12 of the guardrail post holder 1 .

[0036] In a preferred embodiment, the end surface 12 of the guardrail post holder 1 is connected to an external adjustable guardrail base.

[0037] In a preferred embodiment, it further includes: a distribution beam 6, the cross-section of the distribution beam 6 is I-shaped, the upper part of the distribution beam 6 has a wing plate 61, the upper surface of the wing plate 61 abuts against the bridge deck, and the lower surface of the wing plate 61 abuts against the upper surface of the parallel plate 21.

[0038] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0039] The present invention also has the following implementation methods based on the above:

[0040] In a further embodiment of the present invention, Figure 4 As shown, confirm the type of distribution beam to be installed, such as 20# L-shaped plate 2, 22# L-shaped plate 2, 25# L-shaped plate 2, etc. 20# L-shaped plate 2 does not require auxiliary washers, while 22# and 25# need to be installed with auxiliary washers 5. Then loosen the bolts 3 and nuts 4, stretch the L-shaped plate 2 to both sides, and place the adjustable guardrail base on the surface of the L-shaped plate 2; Figure 5 As shown, after the guardrail vertical base 1 is installed, tighten the bolts 3 to complete the installation.

[0041] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A base device for installing a steel trestle guardrail, characterized in that: include: The guardrail post holder is rectangular and has fixing holes on its two side panels; L-shaped plates, two of which are provided on both sides of the guardrail post holder, the two L-shaped plates being arranged opposite to each other, the L-shaped plates also having fixing holes, the fixing holes on one of the side plates being aligned with the fixing holes on one of the L-shaped plates, the L-shaped plates comprising a parallel plate arranged in a horizontal direction, a first gap being formed between the parallel plate and the guardrail post holder; Bolts and nuts, the bolts pass through the fixing holes, and the nuts fix the relative positions of the L-shaped plate and the guardrail column holder.

2. The base device for installing a steel trestle guardrail according to claim 1, characterized in that: A second gap is provided between the two parallel plates, and the first gap and the second gap together form a slot.

3. The base device for installing a steel trestle guardrail according to claim 2, characterized in that: The L-shaped plate includes: the parallel plate and the vertical plate, the parallel plate is connected to the vertical plate, the parallel plate is perpendicular to the vertical plate, the two vertical plates are arranged opposite to each other, the two vertical plates are arranged on both sides of the guardrail column holder, and the two parallel plates are arranged below the guardrail column holder.

4. The base device for installing a steel trestle guardrail according to claim 3, characterized in that: The two parallel plates are located at the same horizontal height, and the two vertical plates are also located at the same horizontal height. A bending portion is provided between the parallel plates and the vertical plates, and the two bending portions are arranged opposite to each other.

5. The base device for installing a steel trestle guardrail according to claim 4, characterized in that: A third gap is defined between the vertical plate and the side plate, and a diameter of the third gap is smaller than a diameter of the second gap.

6. The base device for installing a steel trestle guardrail according to claim 5, characterized in that: Also includes: A washer is sleeved on the bolt, the washer is arranged in the third gap, one end of the washer is against the side plate, and the other end of the washer is against the inner wall of the vertical plate.

7. The base device for installing a steel trestle guardrail according to claim 1, characterized in that: A rectangular groove is provided on the side plate of the guardrail post holder.

8. The base device for installing a steel trestle guardrail according to claim 1, characterized in that: An I-shaped groove is provided on the end surface of the guardrail column holder.

9. The base device for installing a steel trestle guardrail according to claim 8, characterized in that: The end surface of the guardrail column holder is connected to the adjustable guardrail base.

10. The base device for installing a steel trestle guardrail according to claim 1, characterized in that: Also includes: The distribution beam has an I-shaped cross section and a wing plate at the upper portion of the distribution beam. The upper surface of the wing plate abuts against the bridge deck, and the lower surface of the wing plate abuts against the upper surface of the parallel plate.

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