Assembled protective fence

Abstract

The utility model provides a split mounting type protective fence, including a pair of side frames matched with the mounting groove in plug-in connection and a protective fence frame arranged between the two side frames, each side frame includes a bottom column arranged on the bottom wall of the mounting groove, and a short stand column and a long stand column arranged on the two ends of the bottom column, the side wall of the short stand column deviating from the protective fence frame abuts against a straight embedded steel bar, and the side wall of the long stand column abuts against the straight embedded steel bar. The side walls, away from the short stand columns, of the guardrail frames abut against the bent embedded steel bars. According to the split mounting type protective fence, the side frames and the protective fence frame can be limited through the straight embedded steel bars and the bent embedded steel bars, punching, anchoring and mounting are not needed, damage such as punching and the like cannot be generated on a beam plate, rapid dismounting and moving are facilitated, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to an assembled guardrail. Background Art

[0002] In recent years, my country's prefabricated technology has been constantly developing and changing, and more and more construction companies are paying more and more attention to the construction and development of prefabricated bridge projects. Prefabricated concrete bridges are also called prefabricated assembled concrete bridges. The focus of prefabricated assembled concrete bridges is prefabrication and assembly. Prefabrication means that after the bridge passes a series of operations that have been reviewed and approved, it can enter pre-mass production. In the construction process of prefabricated concrete bridges, the production of each module of the bridge and the preparation of the ground will be carried out simultaneously, which can greatly reduce the construction time.

[0003] Different from the traditional construction process of selecting a construction site first and then building, the prefabricated bridge structure is easier to install. After cooperating with the on-site lifting and installation equipment, the bridge superstructure can be quickly installed and put into use after installation, thus improving the efficiency of bridge construction. The prefabricated bridge structure includes a cap, prefabricated columns, and prefabricated box girders that are spliced ​​from bottom to top, and the top of the prefabricated box girder has a beam plate.

[0004] like Figure 1 As shown, a beam and slab of a prefabricated box beam includes a beam and slab body, a mounting groove is opened on the top surface of the beam and slab body, the side of the mounting groove extends to the side wall of the beam and slab body, straight pre-embedded steel bars embedded in the beam and slab body are arranged on the groove wall of the mounting groove, and a plurality of straight pre-embedded steel bars are arranged at equal intervals horizontally, and bent pre-embedded steel bars embedded in the beam and slab body are arranged on the side wall of the beam and slab body, and the bent pre-embedded steel bars are bent upward.

[0005] The above-mentioned existing technical solutions have the following defects: At present, when prefabricated box girders are under construction, in order to ensure construction safety, it is usually necessary to set up temporary guardrails at the installation grooves of the beams and slabs. The existing temporary guardrails are usually driven in and anchored. That is, when the existing temporary guardrails are installed, not only do they need to be damaged by drilling holes in the beams and slabs, but they are also not conducive to rapid dismantling and movement, affecting construction efficiency. Utility Model Content

[0006] The problem to be solved by the utility model is to provide an assembled guardrail in view of the above-mentioned deficiencies existing in the prior art, which solves the problem of reducing construction efficiency existing in the prior art.

[0007] The above-mentioned utility model purpose of the utility model is achieved through the following technical scheme: an assembled guardrail, including a pair of side frames plugged into the installation groove, and a guardrail frame arranged between the two side frames, the side frame including a bottom column arranged on the bottom wall of the installation groove, short columns and long columns arranged on both ends of the bottom column, the side wall of the short column away from the guardrail frame is against the straight embedded steel bar, and the side wall of the guardrail frame away from the short column is against the bent embedded steel bar.

[0008] The utility model is further configured as follows: lower railings are arranged on the side walls of the bottom column and the long column, and slots which are plugged and matched with the bottom of the guardrail frame are opened on the top surface of the lower railing.

[0009] The utility model is further configured as follows: upper limit plates are arranged on the side walls of the long upright column and parallel to the length direction of the guardrail frame, and frame holes for the guardrail frame to pass through are formed between the upper limit plates.

[0010] The utility model is further configured as follows: the bottom column, the short column and the long column are all square steel.

[0011] The utility model is further configured as follows: a connecting column is arranged between the long column and the short column, and the connecting column is square steel.

[0012] The utility model is further configured as follows: a plurality of through holes are opened on the guardrail frame, and a protective net covering the through holes is arranged on the end surface of the guardrail frame facing the short columns.

[0013] The utility model is further configured as follows: the protective net is a large-square mesh steel wire net, the diameter of the steel wire of the protective net is 5mm, and the hole size of the protective net is 50mm×50mm.

[0014] The utility model is further configured as follows: a weight-reducing groove is provided on the end surface of the guardrail frame facing the short column.

[0015] The utility model is further configured as follows: a rear through hole is penetrated through the long column, a connecting plate is arranged on the end surface of the guardrail frame facing the short column, the connecting plate abuts against the end surface of the long column facing the short column, a front through hole is penetrated through the connecting plate and aligned with the rear through hole, screws are penetrated through the front through hole and the rear through hole, and the screw passes through the front through hole and the rear through hole in sequence and is threadedly connected with a nut.

[0016] The utility model is further configured as follows: a gasket is arranged between the head of the screw and the connecting plate.

[0017] To sum up, the beneficial technical effect of the utility model is as follows: the assembled guardrail can use straight embedded steel bars and bent embedded steel bars to limit the side frames and guardrail frames. There is no need for drilling and anchoring installation, so it will not cause damage such as drilling to the beams and slabs, which is conducive to rapid dismantling and movement, and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the beam and slab body in the prior art;

[0019] Figure 2 It is a structural schematic diagram of the assembled guardrail in the utility model;

[0020] Figure 3 It is a cross-sectional structural diagram of the side frame in the utility model;

[0021] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0022] Figure 5 It is a structural schematic diagram of the central beam plate body and the assembled guardrail of the utility model.

[0023] In the above drawings: 1. Beam and slab body; 2. Installation groove; 3. Straight embedded steel bars; 4. Bent embedded steel bars; 5. Side frame; 6. Bottom column; 7. Short column; 8. Long column; 9. Lower railing; 10. Slot; 11. Upper limit plate; 12. Through-frame hole; 13. Connecting column; 14. Guardrail frame; 15. Through hole; 16. Protective net; 17. Weight reduction groove; 18. Rear perforation; 19. Connecting plate; 20. Front perforation; 21. Screw; 22. Nut; 23. Gasket. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 2 As shown, the utility model provides an assembled guardrail, comprising two side frames 5 stacked on each other and a guardrail frame 14 arranged between the two side frames 5 .

[0026] like Figure 2 As shown, the side frame 5 includes a bottom column 6, a short column 7, a long column 8, and a connecting column 13.

[0027] like Figure 2 and 5 As shown, the bottom column 6 is square steel. When the assembled guardrail is installed on the beam plate, the bottom column 6 is located in the installation groove 2, and the bottom surface of the bottom column 6 is against the bottom wall of the installation groove 2.

[0028] like Figure 2 and 5As shown, the short column 7 is a square steel, and the short column 7 is vertically arranged at one end of the bottom column 6 close to the straight pre-buried steel bar 3, and the short column 7 is fixed to the bottom column 6 by welding. When the assembled guardrail is installed on the beam plate, the side wall of the short column 7 away from the guardrail frame 14 abuts against the straight pre-buried steel bar 3, and the assembled guardrail is restricted from moving along its own length direction.

[0029] like Figure 2 As shown, the long column 8 is a square steel, and the long column 8 is vertically arranged at one end of the bottom column 6 away from the short column 7, and the long column 8 is fixed to the bottom column 6 by welding.

[0030] like Figure 2 As shown, lower railings 9 are provided on the side walls of the long column 8 and the bottom column 6. The lower railings 9 are welded to the two side walls of the long column 8 and the bottom column 6 which are parallel to the length of the guardrail frame 14 in the opposite direction. The two lower railings 9 are symmetrical to each other. A slot 10 is provided on the top surface of the lower railing 9. The slot 10 is a rectangular slot. The slot 10 is plugged and matched with the bottom of the guardrail frame 14. When the assembled guardrail is installed on the beam plate, the end face of the lower railing 9 facing away from the short column 7 abuts against the bent pre-embedded steel bar 4. At this time, the assembled guardrail is restricted from moving along its own width direction.

[0031] like Figure 2 As shown, upper limit plates 11 are welded on the two side walls of the long column 8 and parallel to the length direction of the guardrail frame 14, and two symmetrical frame holes 12 are formed between the two upper limit plates 11, and the frame holes 12 are used for the guardrail frame 14 to pass through.

[0032] like Figure 2 As shown, the connecting column 13 is a square steel, one end of the connecting column 13 is welded to the side wall of the long column 8 facing the short column 7, and the other end is welded to the side wall of the short column 7 facing the long column 8, and the connecting column 13 is arranged obliquely. By arranging the connecting column 13, the connection strength between the long column 8 and the short column 7 can be improved, and the structural strength of the side frame 5 can also be improved.

[0033] When the assembled guardrail is installed on the beam, the side wall of the guardrail frame 14 facing away from the short column 7 abuts against the bent pre-embedded steel bar 4. At this time, the assembled guardrail is restricted from moving along its own width direction.

[0034] like Figure 2 As shown, two through holes 15 are symmetrically provided on the guardrail frame 14, and the through holes 15 are rectangular holes. A protective net 16 covering the through holes 15 is welded on the end surface of the guardrail frame 14 facing the short column 7, and the protective net 16 is a large square mesh steel wire mesh, the steel wire diameter of the protective net 16 is 5 mm, and the hole size of the protective net 16 is 50 mm×50 mm.

[0035] like Figure 2As shown, a weight-reducing groove 17 is provided on the end surface of the guardrail frame 14 facing the short column 7. The weight-reducing groove 17 is a rectangular groove. Providing the weight-reducing groove 17 on the guardrail frame 14 can not only reduce the weight of the guardrail frame 14, making it easier for workers to carry and install, but also save materials.

[0036] like Figure 3 and 4 As shown, four rear through holes 18 are formed through the side wall of each long column 8 facing the short column 7 , and the rear through holes 18 are circular holes.

[0037] like Figure 3 and 4 As shown, four connecting plates 19 are welded on the end surface of the guardrail frame 14 facing the short column 7, and two connecting plates 19 are symmetrically arranged at both ends of the guardrail frame 14. The connecting plates 19 at both ends of the guardrail frame 14 are staggered. A front through hole 20 aligned with the rear through hole 18 is opened through the connecting plate 19, and the front through hole 20 is a circular hole.

[0038] like Figure 3 and 4 As shown, a screw rod 21 is inserted into the front through hole 20 and the rear through hole 18 . The screw rod 21 passes through the front through hole 20 and the rear through hole 18 in sequence and is threadedly connected with a nut 22 . A gasket 23 is provided between the head of the screw rod 21 and the connecting plate 19 .

[0039] This assembled guardrail can use the straight embedded steel bars 3 and the bent embedded steel bars 4 to limit the side frames 5 and the guardrail frames 14. There is no need for drilling and anchoring installation, so there will be no damage such as drilling to the beams and slabs, which is conducive to rapid dismantling and movement, thereby improving construction efficiency.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An assembled guardrail, characterized in that: The invention comprises a pair of side frames (5) plugged into and matched with the installation groove (2), and a guardrail frame (14) arranged between the two side frames (5); the side frame (5) comprises a bottom column (6) arranged on the bottom wall of the installation groove (2), and a short column (7) and a long column (8) arranged on both ends of the bottom column (6); the side wall of the short column (7) facing away from the guardrail frame (14) abuts against the straight embedded steel bar (3), and the side wall of the guardrail frame (14) facing away from the short column (7) abuts against the curved embedded steel bar (4).

2. The assembled guardrail according to claim 1, characterized in that: A lower guardrail (9) is arranged on the side walls of the bottom column (6) and the long upright column (8), and a slot (10) is provided on the top surface of the lower guardrail (9) for plugging and matching with the bottom of the guardrail frame (14).

3. The assembled guardrail according to claim 1, characterized in that: Upper limit plates (11) are provided on the side walls of the long upright column (8) and the guardrail frame (14) in the length direction parallel to each other, and frame holes (12) for the guardrail frame (14) to pass through are formed between the upper limit plates (11).

4. The assembled guardrail according to claim 1, characterized in that: The bottom column (6), the short column (7) and the long column (8) are all made of square steel.

5. The assembled guardrail according to claim 1, characterized in that: A connecting column (13) is provided between the long column (8) and the short column (7), and the connecting column (13) is square steel.

6. The assembled guardrail according to claim 1, characterized in that: The guardrail frame (14) is provided with a plurality of through holes (15), and a protective net (16) covering the through holes (15) is provided on the end surface of the guardrail frame (14) facing the short upright column (7).

7. The assembled guardrail according to claim 6, characterized in that: The protective net (16) is a large square mesh steel wire net, the steel wire diameter of the protective net (16) is 5 mm, and the hole size of the protective net (16) is 50 mm×50 mm.

8. The assembled guardrail according to claim 1, characterized in that: The guardrail frame (14) is provided with a weight-reducing groove (17) on the end surface facing the short upright column (7).

9. The assembled guardrail according to claim 1, characterized in that: A plurality of rear through holes (18) are formed through the side wall of the long column (8) facing the short column (7); a connecting plate (19) is provided on the end surface of the guardrail frame (14) facing the short column (7); the connecting plate (19) abuts against the end surface of the long column (8) facing the short column (7); a front through hole (20) aligned with the rear through hole (18) is formed through the connecting plate (19); a screw rod (21) is formed through the front through hole (20) and the rear through hole (18); the screw rod (21) passes through the front through hole (20) and the rear through hole (18) in sequence and is then threadedly connected to a nut (22).

10. The assembled guardrail according to claim 9, characterized in that: A gasket (23) is provided between the head of the screw rod (21) and the connecting plate (19).

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