Protective fence for capping beam construction

Abstract

The utility model discloses a capping beam construction protective fence which comprises a plurality of fixed bases fixed to the ends of formwork distribution beams, and the formwork distribution beams are beam bodies arranged below a capping beam construction area at intervals; the lower ends of the vertical rod pieces are inserted into the fixed base; the multiple directional pipe strings with different heights are horizontally arranged, and each directional pipe string comprises directional pipes which are located at the same height and fixed to the corresponding vertical rod piece; and each protection rope penetrates through the corresponding directional pipe string and is fixed on the vertical rod piece. The fixing base can be welded to the distribution beam on the ground in advance, and therefore the risks of fire disasters and electric shock caused by high-altitude welding operation are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and specifically relates to a cap beam construction guardrail. Background Art

[0002] During the construction of bridges, it is often necessary to work at heights. During the construction of cap beams, there are frequent cases of production safety accidents due to inadequate safety protection measures, which poses a great threat to the life safety of workers. Existing cap beam construction safety guardrails usually require workers to work at heights. The specific method is to first set up the distribution beam, and then the workers weld the columns on the distribution beam, and then use fastener-type steel pipes to make horizontal connections on the columns to form guardrails. The current method not only has high safety risks during high-altitude welding, and there is a risk of fire and electric shock, but also the number of fastener-type steel pipes used is large and heavy, and usually requires lifting operations to be transported to the cap beam operation site. In this process, not only the safety risks are increased, but also the turnover is difficult to install and disassemble, and it is easy to be damaged. After erection, it is often not firm and cannot be closed on all sides, and there are protection gaps. Utility Model Content

[0003] The utility model aims to solve the problems that the safety guardrail of cap beam construction is erected using a large number of fastener-type steel pipes, requires a large number of high-altitude welding operations, is difficult to install and disassemble during turnover, is easy to be damaged, and has a high safety risk.

[0004] The technical solutions adopted are as follows:

[0005] A cap beam construction guardrail, comprising:

[0006] A plurality of fixed bases are fixedly connected to the template distribution beam at intervals around the cap beam construction area, and the template distribution beam is a beam body arranged at intervals below the cap beam construction area;

[0007] A plurality of vertical rods, the lower ends of which are inserted into the fixed base;

[0008] Multiple directional pipe strings, multiple directional pipe strings of different heights are arranged horizontally, wherein each directional pipe string includes directional pipes fixed on vertical rods at the same height;

[0009] Multiple protective ropes, each protective rope passes through the corresponding directional pipe string and is fixed on the vertical rod.

[0010] Optionally, a locking bolt is further included, wherein the end of the locking bolt is screwed into the fixed base to fix the lower end of the vertical rod in the fixed base.

[0011] Optionally, the heights of the multiple protection ropes are at least 60 cm and 120 cm.

[0012] Optionally, the protective rope is a flexible steel wire rope with a diameter of not less than 9 mm.

[0013] Optionally, the spacing between the vertical rods is not greater than 1.5m.

[0014] Optionally, a threaded hole is provided on the side of the fixed base, and a threaded hole identical to the threaded hole on the fixed base is provided on the vertical rod. The locking bolt is screwed into the threaded holes on the fixed base and the vertical rod in turn to fix the vertical rod in the fixed base.

[0015] Optionally, the template distribution beam is an I-beam, and the upper wing plates at the ends of the template distribution beam are respectively provided with insertion holes at positions on both sides of the web plate, and the lower end of the fixed base is fixedly connected to an insertion rod, and the insertion rod is inserted into the insertion hole, and the length of the insertion rod is equal to the thickness of the upper wing plate plus the height of the web plate.

[0016] Optionally, the fixed base and the template distribution beam, and the directional tube and the vertical rod are all connected by welding.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The cap beam construction guardrail provided by the utility model can be welded to the distribution beam on the ground in advance with a fixed base, thereby reducing the risk of fire and electric shock caused by welding operations at heights. The vertical rods and the base are connected by bolts, which can be disassembled and reused, which is more economical. The vertical rods are made of low-alloy high-strength steel pipes, which are high in strength, durable, and have good corrosion resistance. The protective rope is made of a flexible steel wire rope with a diameter of not less than 9mm, which is light in weight, durable, and cheap. It is light in weight as a whole, easy to install, reduces the number of hoisting operations, reduces the safety risks of hoisting operations and high-altitude operations, and can quickly and effectively form a closed safety protection system on all sides, thereby reducing the safety risks of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By describing the embodiments thereof in conjunction with the following drawings, the above-mentioned features and technical advantages of the present utility model will become clearer and easier to understand.

[0020] Figure 1 It is a top view of the cap beam construction guardrail of an embodiment of the utility model.

[0021] Figure 2 It is a three-dimensional schematic diagram of one side of the cap beam construction guardrail of an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of an insertion hole according to an embodiment of the utility model.

[0023] Figure 4Schematic diagram of an insertion rod according to an embodiment of the present utility model.

[0024] Figure 5 This is a schematic diagram of the cooperation between the insertion rod and the insertion hole according to an embodiment of the utility model.

[0025] Figure 6 This is a schematic diagram of the installation of the locking bolt according to an embodiment of the utility model.

[0026] Figure 7 This is a schematic diagram of the installation of the directional pipe according to an embodiment of the utility model.

[0027] Among them: 1-formwork distribution beam; 2-fixed base; 3-locking bolt; 4-vertical rod; 5-protection rope; 6-directional pipe; 11-insertion hole; 12-upper wing plate; 13-web plate; 14-lower wing plate; 21-insertion rod; 100-cap beam construction guardrail. DETAILED DESCRIPTION

[0028] The embodiments of the present invention will be described below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the described embodiments may be modified in various ways or combinations thereof without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims. In addition, in this specification, the drawings are not drawn to scale and the same reference numerals represent the same parts.

[0029] Figure 1 This is a top view of the cap beam construction guardrail of the utility model embodiment. Figure 1 As shown, the utility model provides a cap beam construction guardrail, and the cap beam construction guardrail 100 is arranged around the cap beam construction area ( Figure 1 The medium-thick lines are guardrails), the purpose of which is to play a role in safety protection during the construction of cap beams, especially high pier cap beams, to ensure the safety of life and property of workers.

[0030] Figure 1 In the embodiment, a plurality of fixed bases 2 are arranged at intervals on the upper end of the template distribution beam around the construction area of ​​the cap beam. The template distribution beam 1 can be an I-beam, and a plurality of template distribution beams are arranged at intervals below the construction area of ​​the cap beam, such as Figure 1 In the embodiment, 7 distribution beams are arranged at intervals, and the upper ends of the distribution beams are used to receive the cap beam template. For example, a fixed base 2 is arranged at both ends of each template distribution beam, and multiple fixed bases are arranged at intervals on the template distribution beams on both sides, so that a circle of fixed bases 2 is arranged around the cap beam construction area.

[0031] The following takes one side of the guardrail as an example to illustrate the structure of the guardrail. Figure 2This is a three-dimensional schematic diagram of one side of the cap beam construction guardrail of the utility model embodiment. Figure 2 As shown, the cap beam construction guardrail 100 of this embodiment includes a fixed base 2, a locking bolt 3, a vertical rod 4, a protection rope 5 and a directional tube 6. The fixed base 2 is used to be fixed on the upper end of the template distribution beam 1 as the foundation of the guardrail; the vertical rod 4 is used to be inserted into the fixed base 2 as a vertical force-bearing component of the guardrail; the locking bolt 3 is screwed into the fixed base 2, thereby fixing the lower end of the vertical rod 4 in the fixed base 2; the directional tube 6 is used to be fixed on the vertical rod 4 with the axis horizontally, and the protection rope is used to be inserted into each directional tube 6 of the same height in turn to form a horizontal protection line.

[0032] The fixed base 2 may be a hollow column, and the lower end of the fixed base 2 is fixed to the upper end of the template distribution beam 1, and may be fixed by welding. A circle of fixed bases 2 is arranged around the cap beam construction area. The fixed base 2 can be welded to the distribution beam 1 on the ground in advance, so there is no need for high-altitude welding operations, thereby reducing the risk of fire and electric shock caused by high-altitude welding operations.

[0033] Of course, the present application does not exclude the possibility of fixing the fixed base 2 on the upper end of the template distribution beam 1 in other ways. For example, Figure 3 It is a schematic diagram of an insertion hole according to an embodiment of the utility model. Figure 4 Schematic diagram of an insertion rod according to an embodiment of the present utility model. Figure 5 Schematic diagram of the insertion rod and the insertion hole of the embodiment of the utility model. Figures 3 to 5 As shown, two insertion holes 11 can be provided on the template distribution beam. For an I-beam, the two insertion holes 11 can be respectively provided at the positions where the upper wing plate 12 is located on both sides of the web plate 13 .

[0034] The lower end of the fixed base 2 is fixedly connected to two insertion rods 21, and the insertion rods 21 can be welded to the fixed base 2 in advance. The spacing between the insertion rods 21 is the same as the spacing between the insertion holes 11, so that the two insertion rods 21 can be inserted into the insertion holes 11 respectively. In addition, the size of the insertion hole 11 is the same as the size of the insertion rod 21. For example, if the diameter of the insertion hole is 10 mm, the diameter of the insertion rod is also 10 mm. In addition, the length of the insertion rod 21 is equal to the thickness of the upper wing plate 12 plus the height of the web 13, so that the lower end of the insertion rod 21 is against the inner side of the lower wing plate 14. Through the contact of the inner side of the lower wing plate 14 with the insertion rod 21, the connection strength between the fixed base and the template distribution beam can be further strengthened. After the fixed base 2 is fixed by the insertion rod 21 and the insertion hole 11, it can also be combined with welding to further fix the fixed base 2 firmly.

[0035] The vertical rod 4 is used to be inserted into the fixed base 2, and can be made of a low-alloy high-strength steel pipe. A threaded hole can be set on the side of the fixed base 2, and the locking bolt 3 is screwed into the threaded hole from the side of the fixed base 2, so that the end of the locking bolt 3 is against the side of the vertical rod 2, thereby fixing the vertical rod 4 in the fixed base 2. The number of the locking bolts 3 is not limited. Figure 6 FIG. 1 is a schematic diagram of the installation of the locking bolt of the embodiment of the utility model. Figure 6 Two locking bolts 3 are used. For example, the vertical rod 4 may be provided with threaded holes identical to the threaded holes on the fixed base 2, and the locking bolts 3 are screwed into the threaded holes on the fixed base and the vertical rod 4 in turn to fix the vertical rod 4 in the fixed base 2.

[0036] The vertical rods are fixed by locking bolts and can be disassembled and reused, which is more economical. The vertical rods are made of low-alloy high-strength steel pipes, which are high in strength, durable and have good corrosion resistance.

[0037] The axes of multiple directional pipe strings of different heights are horizontally fixed on each vertical rod 4 , and each directional pipe string includes multiple directional pipes of the same height, and each directional pipe is fixed on a corresponding vertical rod 4 . Figure 7 The installation diagram of the directional pipe of the embodiment of the utility model is as follows: Figure 7 In the embodiment, two directional tube strings can be used, and of course more directional tube strings can also be used. For example, two directional tube strings are set at heights of 60 cm and 120 cm respectively. Then at a height of 60 cm, a directional tube is fixed on each vertical rod 4. At a height of 120 cm, a directional tube is fixed on each vertical rod 4. It should be noted that the heights of 60 cm and 120 cm refer to the relative heights relative to the bottom of the guardrail, not the heights relative to the ground. The directional tube 6 and the vertical rod 4 can be fixedly connected by welding, bolting, etc. The directional tube 6 can also be installed on the vertical rod on the ground in advance, for example, the directional tube is welded to the vertical rod on the ground, so as to avoid welding operations at high altitudes and avoid the dangers of high-altitude welding operations.

[0038] The protective rope 5 is used to pass through the directional pipe strings at the same height in sequence to form a horizontal protective line. For example, the protective rope 5 is a flexible steel wire rope with a diameter of not less than 9 mm, which is light, strong and durable, and cheap. Corresponding to two directional pipe strings, two horizontal protective lines are formed. In order to make the horizontal protective line have a certain protective strength, the unsupported span of the protective rope should be avoided to be too long, so the vertical rod spacing is not greater than 1.5m.

[0039] Exemplarily, the inner diameter of the directional tube 6 gradually increases from the middle to both ends, so that the protective rope 5 can pass through it relatively easily, and even if it gets stuck, it can be easily pulled out from both ends.

[0040] In addition, to prevent people from stepping out of the guardrail from the space below the horizontal guardrail, multiple horizontal guardrails can be set below 30 cm to close the area where people may step out, thereby improving the safety of the guardrail.

[0041] The following is an explanation of the installation method of the guardrail. On the template distribution beam, a circle of fixed bases 2 is set around the construction area of ​​the cap beam. The fixed base can be fixedly connected to the template distribution beam by the aforementioned welding method, or it can be connected by inserting a rod and an insertion hole, or it can be connected by inserting an insertion rod into the insertion hole and then welding. Insert a vertical rod 4 into each fixed base 2, and screw the locking bolt 3 into the side wall of the fixed base 2 to fix the lower end of the vertical rod 4 in the fixed base 2. Fixed directional tubes 6 are respectively fixed on the vertical rods 4. The directional tubes 6 can be connected to the vertical rods 4 by welding, or they can be connected to the vertical rods 4 by bolts. Pass the protective rope 5 through the directional tubes 6 in turn to form a horizontal protective line. For each side of the guardrail, two horizontal protective lines of different heights can be set. By installing the guardrail 100 at the ends of the template distribution beams around the cap beam, a four-sided continuous closed, detachable and reusable lightweight safety protection system is finally formed. The guardrail is light in weight as a whole and easy to install. It reduces the number of hoisting operations and the safety risks of hoisting operations and operations at heights. It can quickly and effectively form a closed safety protection system on all sides, thereby reducing the safety risks of operations at heights.

[0042] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cap beam construction guardrail, characterized in that: include: A plurality of fixed bases are fixedly connected to the template distribution beam at intervals around the cap beam construction area, and the template distribution beam is a beam body arranged at intervals below the cap beam construction area; A plurality of vertical rods, the lower ends of which are inserted into the fixed base; Multiple directional pipe strings, multiple directional pipe strings of different heights are arranged horizontally, wherein each directional pipe string includes directional pipes fixed on vertical rods at the same height; Multiple protective ropes, each protective rope passes through the corresponding directional pipe string and is fixed on the vertical rod.

2. The cap beam construction guardrail according to claim 1, characterized in that: It also includes a locking bolt, the end of which is screwed into the fixed base to fix the lower end of the vertical rod in the fixed base.

3. The cap beam construction guardrail according to claim 1, characterized in that: The heights of the multiple protection ropes are at least 60 cm and 120 cm.

4. The cap beam construction guardrail according to claim 1, characterized in that: The protective rope is a flexible steel wire rope with a diameter not less than 9 mm.

5. The cap beam construction guardrail according to claim 1, characterized in that: The spacing between the vertical rods is no more than 1.5m.

6. The cap beam construction guardrail according to claim 1, characterized in that: A threaded hole is arranged on the side of the fixed base, and a threaded hole identical to the threaded hole on the fixed base is arranged on the vertical rod. The locking bolt is screwed into the threaded holes on the fixed base and the vertical rod in turn to fix the vertical rod in the fixed base.

7. The cap beam construction guardrail according to claim 1, characterized in that: The template distribution beam is an I-beam, and the upper wing plates at the ends of the template distribution beam are respectively provided with insertion holes at positions on both sides of the web plate. The lower end of the fixed base is fixedly connected to an insertion rod, and the insertion rod is inserted into the insertion hole. In addition, the length of the insertion rod is equal to the thickness of the upper wing plate plus the height of the web plate.

8. The cap beam construction guardrail according to claim 1 or 7, characterized in that: The fixed base and the formwork distribution beam, the directional tube and the vertical rod are all connected by welding.

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