Fixing device for shaped protective net handrail

Abstract

The utility model belongs to the technical field of constructional engineering, and particularly relates to a fixing device for a shaped protective net handrail, which comprises a square steel tube, and a wall body fixing outer side clamp, a protective handrail fixing outer side clamp, a protective handrail fixing inner side clamp and a wall body fixing inner side clamp which are sequentially arranged on the square steel tube, each clamp independently comprises a sleeve, a steel plate, a fixing nut and an adjusting knob; the sleeve is arranged on the square steel tube in a sleeving manner; the steel plate is vertically welded on the sleeve, and the surface of the steel plate is vertical to the moving direction of the sleeve; a through hole is reserved in one side of the sleeve, and a fixing nut is welded to one side of the sleeve. And the adjusting knob is in threaded connection with the fixing nut. The fixing device can ensure that the shaped protective net handrail is firmly fixed at the hole, punching is not needed, installation is convenient, adaptability is wide, and the technical problems that construction is difficult, cost is high, safety is poor and progress is slow due to the fact that an existing technology is adopted are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and particularly relates to a fixing device for a standardized protective net railing. Background Art

[0002] During the construction of large high-rise buildings, some openings will be reserved in elevator shafts and walls for later construction. These reserved openings will undoubtedly pose great safety hazards to the construction site, so it is necessary to use a standardized protective net railing to protect the openings.

[0003] The existing protective net railings are generally fixed by expansion bolts. Although the fixing is firm and reliable, expansion bolt holes need to be drilled during the installation process, which not only damages the shear wall, but also the stability is greatly affected by human factors. The ability level of workers directly affects the fixing effect, and it is time-consuming and laborious to remove the standardized protective net railing, affecting the construction efficiency. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides a fixing device for a standardized protective net railing for the safety protection openings in building construction. Its structure is simple, the installation is firm, the installation and disassembly are convenient, it can be recycled, and it can effectively meet the use requirements that the protective railing at the reserved opening position does not displace. At the same time, by adjusting the distance between the steel movable clamps, the protective net railing with different wall thicknesses of the opening can be fixed, which is economical and applicable and speeds up the construction progress, and has remarkable popularization.

[0005] Specifically, the utility model provides the following technical solutions:

[0006] A fixing device for a standardized protective net railing, comprising:

[0007] A square steel pipe and a fixing clamp on the outer side of the fixed wall, a fixing clamp on the outer side of the protective railing, a fixing clamp on the inner side of the protective railing, and a fixing clamp on the inner side of the fixed wall arranged in sequence on the square steel pipe;

[0008] The fixing clamp on the outer side of the fixed wall, the fixing clamp on the outer side of the protective railing, the fixing clamp on the inner side of the protective railing, and the fixing clamp on the inner side of the fixed wall each independently include a sleeve, a steel plate, a fixing nut, and an adjusting knob;

[0009] The sleeve is sleeved on the square steel pipe;

[0010] The steel plate is perpendicularly welded to the sleeve, and the surface of the steel plate is perpendicular to the moving direction of the sleeve;

[0011] A through hole is reserved on one side of the sleeve and the fixing nut is welded; the adjusting knob is threadedly connected to the fixing nut, and by screwing the adjusting knob, the position of the sleeve on the square steel pipe can be adjusted.

[0012] Install a standardized protective net railing at the reserved hole position, which can effectively reduce the occurrence of safety accidents. Whether the protective net railing is firmly fixed is directly related to the safety and reliability of the protective railing. The fixing device provided by the present invention uses square steel pipes and steel plates, which are ideal elastoplastic materials, as the main load-bearing members. The materials are convenient to obtain and can meet the load-bearing requirements as the fixing of the protective net railing.

[0013] After the fixing device of the present invention is assembled, the sleeve can move freely on the square steel pipe to ensure that the device can adapt to standardized protective net railings with different wall thicknesses and different heights. After the device is in place, the inner and outer wall clamps can be adjusted first to fix them to the walls on both sides of the reserved hole. Then, the inner and outer railing clamps are fixed to the protective net railing, and finally the fixing of the protective net railing is realized.

[0014] Preferably, the steel plate of the outer wall clamp of the fixed wall is provided with a bent section at one end away from the sleeve, and a rectangular backing plate is welded to the end of the bent section. By setting a rectangular backing plate at the end of the steel plate of the outer wall clamp of the fixed wall, the contact area with the outer wall is increased, and the firmness is improved.

[0015] Further preferably, the included angle of the bent section is 45 degrees.

[0016] Preferably, the steel plate of the inner wall clamp of the fixed wall is provided with threaded holes. By using an adjusting knob in a matching manner, the friction with the wall is increased, and it can be ensured that when the inner wall clamp of the fixed wall is loose, the adjusting knob can be adjusted at any time for fastening.

[0017] Preferably, reinforcing bars are arranged on the steel plates of the outer clamp of the fixed protective railing and the inner clamp of the fixed protective railing in a relatively staggered manner. The reinforcing bars on the inner and outer protective railing clamps are arranged in a staggered manner, so that the space surrounded by the reinforcing bars is closed, preventing the protective net railing from slipping out of the clamp.

[0018] Preferably, the steel plate of the outer clamp of the fixed protective railing is provided with threaded holes. By using an adjusting knob in a matching manner, the square steel pipe on the protective net railing is fixed to prevent the protective net railing from displacing in the Y direction and the X direction.

[0019] Preferably, plug holes are respectively arranged at both ends of the square steel pipe, and plugs are inserted into the plug holes. In the present invention, plugs are inserted into the plug holes to prevent the sleeve from falling off or being lost from the square steel pipe during transportation and use of the fixing device.

[0020] The beneficial effects of the present utility model are at least as follows:

[0021] 1) The fixing device for a standardized protective net railing provided by the present utility model avoids the construction difficulties caused by erecting safety protective railings at reserved holes, reduces material consumption, does not damage the wall, and solves the technical problems of high cost and slow progress;

[0022] 2) The fixing device of the standardized protective net railing provided by the utility model reduces the labor intensity of workers, improves work efficiency, is easy to install components and can be reused. On the premise of ensuring safety, it is convenient for installation and disassembly, realizes quick installation and disassembly, and forms good economic benefits;

[0023] 3) The fixing device of the standardized protective net railing provided by the utility model realizes standardization and customization, precisely controls the processing size, is applicable to reserved openings with various different cross-sectional sizes, and has remarkable popularization;

[0024] 4) For the fixing device of the standardized protective net railing provided by the utility model, all components are movable. If a certain component is damaged, only this component needs to be replaced, and the durability, economy and flexibility are significantly improved compared with traditional fixing devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the fixing device of the standardized protective net railing provided for Embodiment 1. In the figure, 1 - square steel pipe; 2 - fixture on the outer side of the fixed wall; 3 - fixture on the inner side of the fixed wall; 4 - fixture on the outer side of the fixed protective railing; 5 - fixture on the inner side of the fixed protective railing; 6 - pin hole.

[0026] Figure 2 It is a schematic structural diagram of the fixture on the outer side of the fixed wall and the fixture on the inner side of the fixed wall in Embodiment 1. In the figure, the left side is the fixture on the outer side of the fixed wall, and the right side is the fixture on the inner side of the fixed wall, 7 - steel sleeve; 8 - steel plate; 9 - steel rectangular backing plate; 10 - adjusting knob; 11 - fixing nut.

[0027] Figure 3 It is a schematic structural diagram of the fixture on the outer side of the fixed protective railing and the fixture on the inner side of the fixed protective railing in Embodiment 1. In the figure, the left side is the fixture on the outer side of the fixed protective railing, and the right side is the fixture on the inner side of the fixed protective railing, 12 - steel sleeve; 13 - steel plate; 14 - short steel bar; 15 - adjusting knob; 16 - fixing nut.

[0028] Figure 4 It is a schematic structural diagram of the pin and the buckle in Embodiment 1. In the figure, the left side is the pin, and the right side is the buckle.

[0029] Figure 5 It is a front view effect diagram of applying the fixing device provided in Embodiment 1 to fix the standardized protective net railing. In the figure, 17 - reserved opening, 18 - protective net railing.

[0030] Figure 6 For Figure 5 Partial enlarged view.

[0031] Figure 7 The side view effect diagram of applying the fixing device provided in Embodiment 1 to fix the standardized protective net railing.

[0032] Figure 8 For Figure 7 Partial enlarged view. In the figure, 19 is the square steel pipe on the protective net railing.

[0033] Figure 9 The top view effect diagram of applying the fixing device provided in Embodiment 1 to fix the standardized protective net railing. Specific implementation manners

[0034] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. The following embodiments are used to illustrate the present utility model, but not to limit the scope of the present utility model. For those without specific technical or conditions noted in the embodiments, they shall be carried out according to the techniques or conditions described in the literature in the field or according to the product specifications.

[0035] Embodiment 1

[0036] Embodiment 1 provides a fixing device for a standardized protective net railing, as Figure 1 shown, including a square steel pipe 1, an outer fixture 2 for fixing the wall body, an inner fixture 3 for fixing the wall body, an outer fixture 4 for fixing the protective railing, an inner fixture 5 for fixing the protective railing, and a pin hole 6.

[0037] Among them, the wall thickness of the square steel pipe 1 is 3 mm, the cross-sectional dimension is 3 * 3 cm, and the total length is 45 cm. It is the carrier of various fixtures and also a force transmission member. Each fixture is connected in series through the square steel pipe to ensure that the wall fixtures and the protective net railing fixtures firmly fix the standardized protective net railing on the wall bodies on both sides of the opening through the square steel pipe. At the same time, pin holes are processed at both ends of the square steel pipe 1 for installing pins to prevent the components from being lost.

[0038] Such as Figure 2As shown in the figure, the fixture 2 on the outer side of the fixed wall and the fixture 3 on the inner side of the fixed wall are composed of a steel sleeve 7, a steel plate 8, a steel rectangular backing plate 9, an adjusting knob 10 and a supporting fixing nut 11. The wall thickness of the steel sleeve 7 is 3 mm, which is made of a square steel pipe with a size of 4 * 4 cm and a length of 4 cm. After the sleeve is manufactured, a single-side hole is drilled on the sleeve and the fixing nut 11 matching the adjusting knob 10 is welded at the same time. The steel plate 8 is connected to the square steel pipe 1 through the steel sleeve 7, and it can be moved and fixed on the square steel pipe 1 by tightening and loosening the adjusting knob 10 on the steel sleeve 7, so as to achieve the purpose of fixing the protective railing in walls with different thicknesses. The adjusting knob 10 is an adjustable fastening bolt. The steel plate 8 used for fixing on the walls on both sides of the hole is made of a 4-mm-thick steel plate, which is the main stress-bearing component of the wall fixture. The quality of its processing directly affects the firmness of the connection between the fixture and the wall. First, the steel plate 8 is processed into a rectangular steel plate with a width of 3 cm and a length of 15 cm. One end of it is welded to the steel sleeve 7, and the surface of the steel plate 8 is perpendicular to the moving direction of the steel sleeve 7. Among them, the steel plate on the fixture 2 on the outer side of the fixed wall is processed into a folded line shape with a bending angle of 45 degrees, and a steel rectangular backing plate 9 with a size of 3 * 5 cm is welded at the end of the steel plate 8 to increase the contact area with the wall and improve the firmness; for the fixture 3 on the inner side of the fixed wall, a hole is drilled at a position 5 cm away from the end of the steel plate 8, and the size of the hole corresponds to the adjusting knob for supporting use, ensuring that the adjusting knob can be adjusted at any time for fastening when the fixture loosens during the use of the fixing device.

[0039] As Figure 3 shown in the figure, the fixture 5 on the outer side of the fixed protective railing and the fixture 6 on the inner side of the fixed protective railing are composed of a steel sleeve 12, a steel plate 13, a short steel bar 14, an adjusting knob 15 and a supporting fixing nut 16. The steel plate 13 for fixing the railing is also made of the steel plate 13 with the same specification and model as that of the fixed wall. One end of it is welded to the steel sleeve 12, and the surface of the steel plate 13 is perpendicular to the moving direction of the steel sleeve 12. Among them, the length of the steel plate 13 of the fixture 5 on the outer side of the fixed protective railing is 12 cm, and the length of the steel plate 13 of the fixture 6 on the inner side of the fixed protective railing is 15 cm. Short steel bars 14 with a length of 4 cm and a diameter of 12 mm are welded on the steel plate 13. Note that the short steel bars 14 on the inner and outer steel plates 13 need to be staggered so that the space enclosed by the short steel bars 14 is closed to prevent the protective net railing from slipping out of the fixture. The width of the steel plate 13 for fixing the protective net railing is 3 cm. A hole is drilled on the steel plate 13 of the fixture 5 on the outer side of the fixed protective railing, and the drilling position is 2 cm above the short steel bar 14. Single-side holes are drilled at the top of all the steel sleeves 12 of the steel plates 13 welded for the fixture 5 on the outer side of the fixed protective railing and the fixture 6 on the inner side of the fixed protective railing. The drilling size needs to be processed in combination with the size of the adjusting knob 15, and matching fixing nuts 16 are welded at all the drilling positions and the adjusting knob 15 is installed.

[0040] After the above-mentioned movable fixtures are processed, install the fixtures on the square steel pipe in sequence. The fixtures on the outer sides of both ends of the square steel pipe are for fixing the wall, and the fixtures on the inner sides are for fixing the protective net railing, and the two types of fixtures are perpendicular to each other. At the same time, it must be noted whether the fixing device is on the left or right side of the reserved hole, and adjust the positional relationship of the movable fixtures to ensure the accuracy of the fixture positional relationship, which is convenient for the later installation and reinforcement of the protective net railing. After all components are installed, install a pin on the pin hole 6 on the square steel pipe 1 and lock it with a buckle, which can be referred to Figure 4 , to prevent the components of the fixing device from falling off or being lost during handling, use, and hoisting.

[0041] Pre-adjust the fixing device to an appropriate position according to the thickness of the walls on both sides of the reserved hole and the height of the protective net railing, and make the steel rectangular backing plate 9 on the fixture 2 on the outer side of the fixed wall and the steel plate 8 on the fixture 3 on the inner side of the fixed wall close to the wall, and slightly fix it through the adjusting knob 10 on the steel sleeve 7.

[0042] Adjust the fixture 5 on the outer side of the fixed protective railing and the fixture 6 on the inner side of the fixed protective railing according to the position of the protective net railing, so that the short reinforcing bars 14 on the fixture pass through the mesh holes on the protective railing to form a closed structure to prevent the protective net railing from falling off the fixture, and make the steel plate 13 on the fixture close to the square steel pipe on the protective net railing. At the same time, make the adjusting knob on the steel plate 13 of the fixture 5 on the outer side of the fixed protective railing correspond to the square steel pipe on the protective net railing, so that the adjusting knob applies a squeezing force to the square steel pipe to prevent the protective railing from displacing in any direction.

[0043] After installing the fixing device for one side of the protective net railing, install the fixing device on the other side. After all installations are completed, fine-tune the fixing device according to the installation quality and tighten the adjusting knob for the second time to ensure that the protective net railing is firmly fixed on the walls on both sides of the hole through the fixing device.

[0044] Figure 5 Figure 15 is the front view effect diagram of applying the fixing device provided in Embodiment 1 to fix the standardized protective net railing. Figure 6 is Figure 5 partial enlarged view of.

[0045] Figure 7 Figure 23 is the side view effect diagram of applying the fixing device provided in Embodiment 1 to fix the standardized protective net railing. Figure 8 is Figure 7 partial enlarged view of.

[0046] Figure 9 Figure 31 is the top view effect diagram of applying the fixing device provided in Embodiment 1 to fix the standardized protective net railing.

[0047] Regularly check the tightness of the nuts of the fixing device to ensure the reliable use of the protective net railing.

[0048] After the construction is completed, remove the fixing device. First, loosen the adjusting nut on the steel casing so that its fixture can move freely on the square steel pipe. Finally, take out the fixing device from the shaped protective steel grid for turnover use.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixing device for a standardized protective net railing, characterized in that: include: A square steel pipe and a clamp for fixing the outer side of the wall, a clamp for fixing the outer side of the guardrail, a clamp for fixing the inner side of the guardrail, and a clamp for fixing the inner side of the wall, which are sequentially arranged on the square steel pipe; The fixture for fixing the outer side of the wall, the fixture for fixing the outer side of the guardrail, the fixture for fixing the inner side of the guardrail, and the fixture for fixing the inner side of the wall each independently include a sleeve, a steel plate, a fixing nut and an adjusting knob; The sleeve is sleeved on the square steel pipe; The steel plate is vertically welded to the sleeve, and the surface of the steel plate is perpendicular to the moving direction of the sleeve; A through hole is reserved on one side of the sleeve and the fixing nut is welded thereto; the adjusting knob is threadedly connected to the fixing nut, and the position of the sleeve on the square steel pipe can be adjusted by turning the adjusting knob.

2. The fixing device for the standardized protective net railing according to claim 1 is characterized in that: The steel plate for fixing the clamp on the outer side of the wall is provided with a bending section at one end away from the sleeve, and a rectangular pad is welded to the end of the bending section.

3. The fixing device for the standardized protective net railing according to claim 2 is characterized in that: The included angle of the bending section is 45 degrees.

4. The fixing device for the standardized protective net railing according to any one of claims 1 to 3, characterized in that: The steel plate for fixing the inner wall fixture is provided with threaded holes.

5. The fixing device for the standardized protective net railing according to any one of claims 1 to 3, characterized in that: Steel bars are arranged on the steel plates of the outer clamp of the fixed guardrail and the inner clamp of the fixed guardrail in a relatively staggered manner.

6. The fixing device for the standardized protective net railing according to any one of claims 1 to 3, characterized in that: The steel plate for fixing the outer side clamp of the guardrail is provided with threaded holes.

7. The fixing device for the standardized protective net railing according to any one of claims 1 to 3, characterized in that: Both ends of the square steel tube are respectively provided with latch holes, and latch pins are inserted into the latch holes.

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