Temporary gate supporting and rotating device for construction site

Abstract

The utility model belongs to the field of constructional engineering, and particularly relates to a construction site temporary gate supporting and rotating device which comprises a spring universal wheel, the upper end of the spring universal wheel is fixed in a mounting box, the mounting box is welded to the lower middle portion of a U-shaped mounting plate, and the U-shaped mounting plate and a U-shaped fixing plate are fixed together. The U-shaped fixing plate is fixed to the supporting rod, and the supporting rod is fixed to the lower portion of the temporary gate. The spring is located in the mounting box and is not prone to rusting, the using smoothness and effectiveness are guaranteed, the mounting height position of the device can be adjusted according to the terrain condition on a construction site, the device is suitable for the construction sites of different terrains, the mounting position and number can be changed, welding is not needed, and mounting and dismounting are easy and fast.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building engineering, especially relates to a building site temporary gate support rotating device. BACKGROUND

[0002] The temporary gate of the building site mainly serves the temporary entrance of the building construction site or various engineering projects, and the purpose is to guarantee the safety and order of the engineering site. Since the temporary gate of the building site is a temporary facility, it will be removed after the completion of the project, therefore, the temporary gate is relatively simple, some temporary gates are simply welded with universal wheels at the bottom to support and rotate the door, and some directly use an iron column to support the door, and manual assistance is needed when rotating. Since the ground of the construction site is not flat, especially for short-term engineering projects, the ground near the temporary gate will not be constructed and leveled, and the uneven ground will cause the universal wheel to rotate poorly, and manual lifting is needed to assist the rotation. In view of this problem, some temporary gates currently use spring universal wheels, but the spring universal wheels are generally directly welded at the bottom of the gate, and cannot be reused after removal, causing waste, and in addition, the spring is exposed for a long time, which is prone to rust, resulting in poor or ineffective rotation. SUMMARY

[0003] The problem to be solved by the present application is to overcome the deficiencies of the background art and provide a temporary gate support rotating device for a building site.

[0004] The present application is achieved by the following technical solutions:

[0005] A temporary gate support rotating device for a building site, comprising a spring universal wheel, the upper end of the spring universal wheel is fixed to the upper wall inside a mounting box, the upper end of the mounting box is closed and the lower end is open, and the universal wheel of the spring universal wheel extends out of the mounting box downwardly; the mounting box is welded to the middle and lower part of a U-shaped mounting plate, a plurality of threaded holes A are arranged on the left and right side plates of the U-shaped mounting plate from top to bottom, the U-shaped mounting plate is located in a U-shaped fixed plate, a plurality of threaded holes B corresponding to the threaded holes A are arranged on the left and right side plates of the U-shaped fixed plate from top to bottom, and the U-shaped mounting plate and the U-shaped fixed plate are fixed together through bolts A passing through the threaded holes A and the threaded holes B; the U-shaped fixed plate is fixed to a vertical support rod, and the support rod is fixed to the lower part of the temporary gate.

[0006] Preferably, the upper end of the support rod is integrally provided with a U-shaped clamp A, the U-shaped clamp A is fixed to the transverse back bar of the lower part of the temporary gate, and the U-shaped clamp A is provided with a fastening bolt A; the lower end of the support rod is integrally provided with a U-shaped clamp B, the U-shaped clamp B is fixed to the bottom of the temporary gate, and the side surface of the U-shaped clamp B is provided with a fastening bolt B.

[0007] Preferably, the support rod is welded to the lower part of the temporary gate.

[0008] Preferably, the support rod is provided with a plurality of threaded holes C from top to bottom, the middle plate of the U-shaped fixing plate is provided with a plurality of threaded holes D from top to bottom, and the U-shaped fixing plate is fixed with the support rod through bolts C penetrating the threaded holes C and the threaded holes D.

[0009] Preferably, the spring universal wheel comprises a universal wheel and a bracket, a support column is fixed on the upper surface of the bracket, the upper part of the support column is sleeved in a guide column cylinder in a sliding mode, a spring is sleeved on the support column, the upper end of the spring is fixed on the lower surface of the guide column cylinder, and the lower end of the spring is fixed on the upper surface of the bracket.

[0010] The spring of the spring universal wheel of the device is located in the mounting box, is not prone to rust, and ensures smoothness and effectiveness of use of the spring universal wheel; the device can adjust the height position of installation according to the terrain on the construction site, is suitable for construction sites with different terrains; and the device can change the installation position and number, does not need to be welded, and is simple and fast in installation and disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of the back structure of the temporary door of the embodiment;

[0012] Figure 2 It is a schematic view of the front structure of the temporary door of the embodiment;

[0013] Figure 3 It is a schematic view of the overall structure of the embodiment;

[0014] Figure 4 It is a schematic view of the split structure of the embodiment;

[0015] Figure 5 It is a schematic view of the U-shaped fixing plate structure of the embodiment;

[0016] Figure 6 It is a schematic view of the support rod structure of the embodiment;

[0017] Figure 7 It is a schematic view of the spring universal wheel structure of the embodiment.

[0018] In the drawing, 1 is a temporary door, 2 is a spring universal wheel, 3 is a mounting box, 4 is a universal wheel, 5 is a U-shaped mounting plate, 6 is a threaded hole A, 7 is a U-shaped fixing plate, 8 is a threaded hole B, 9 is a bolt A, 10 is a support rod, 11 is a U-shaped clamp A, 12 is a back ridge, 13 is a fastening bolt A, 14 is a U-shaped clamp B, 15 is a fastening bolt B, 16 is a threaded hole C, 17 is a threaded hole D, 18 is a bolt C, 20 is a bracket, 21 is a support column, 22 is a guide column cylinder, and 23 is a spring. DETAILED DESCRIPTION

[0019] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application.

[0020] The spring universal wheel 2 in the embodiment can stretch up and down according to the terrain. The spring universal wheel 2 is a conventional caster, which can be selected without special limitation. In the embodiment, the spring universal wheel 2 includes a universal wheel 4 and a bracket 20. A support column 21 is fixed on the upper surface of the bracket 20. The upper part of the support column 21 is sleeved in a guide column cylinder 22 and can slide up and down in the guide column cylinder 22. A spring 23 is sleeved on the support column 21. The upper end of the spring 23 is fixed on the lower surface of the guide column cylinder 22, and the lower end of the spring 23 is fixed on the upper surface of the bracket 20. Due to the presence of the spring 23, when the universal wheel 4 encounters uneven ground, the support column 21 can slide up and down in the guide column cylinder 22, so that the universal wheel 4 can change with the ground height. The upper end of the guide column cylinder 22 of the spring universal wheel 2 in the embodiment is fixed on the inner upper wall of a mounting box 3. The mounting box 3 is hollow with a closed upper end and an open lower end. The universal wheel 4 of the spring universal wheel 2 extends out of the mounting box 3. The mounting box 3 can protect the spring 23 from being eroded by rain and rusted, so that the spring 23 is not easy to rust, and the smoothness and effectiveness of the spring universal wheel 2 are ensured.

[0021] The mounting box 3 is welded on the middle and lower part of a U-shaped mounting plate 5. A plurality of threaded holes A6 are arranged on the left and right side plates of the U-shaped mounting plate 5 from top to bottom. The U-shaped mounting plate 5 is located in a U-shaped fixing plate 7. A plurality of threaded holes B8 corresponding to the threaded holes A6 are arranged on the left and right side plates of the U-shaped fixing plate 7 from top to bottom. The side plates of the U-shaped mounting plate 5 and the U-shaped fixing plate 7 are fixed together by bolts A9 passing through the threaded holes A6 and the threaded holes B8. The height of the U-shaped mounting plate 5 can be adjusted through the threaded holes A6 and the threaded holes B8, so that the installation height of the spring universal wheel 2 can be adjusted according to the terrain.

[0022] The U-shaped fixing plate 7 is fixed on a vertical support rod 10, and the support rod 10 is fixed on the lower part of the temporary door 1. The support rod 10 can be directly welded on the back of the temporary door 1, or can be fixed on the lower part of the temporary door 1 by using other structures. In the present embodiment, the fixing structure can be preferably provided with a U-shaped clamp A11 on the upper end of the support rod 10, the U-shaped clamp A11 is fixed on the transverse U-shaped back ledge 12 on the lower part of the temporary door 1, and the U-shaped clamp A11 is provided with a vertical fastening bolt A13. By screwing the fastening bolt A13 downward, the clamping thickness of the U-shaped clamp A11 can be adjusted. By tightening the fastening bolt A13, the U-shaped clamp A11 can be fastened on the back ledge 12. The U-shaped clamp B14 is integrally provided on the lower end of the support rod 10, the U-shaped clamp B14 is clamped on the bottom of the temporary door 1, the U-shaped clamp B14 is provided with a fastening bolt B15 on the side surface, the fastening bolt B15 is in a horizontal state, the fastening bolt B15 is located on the front surface of the temporary door 1, and the U-shaped clamp B14 can adapt to different thicknesses of the bottom of the temporary door 1 by the fastening bolt B15. By tightening the fastening bolt B15, the U-shaped clamp B14 can be fastened on the bottom of the door.

[0023] A plurality of threaded holes C16 are provided on the support rod 10 from top to bottom, a plurality of threaded holes D17 corresponding to the threaded holes C16 are provided on the middle plate of the U-shaped fixing plate 7 from top to bottom, and the U-shaped fixing plate 7 is fixed together with the support rod 10 by the bolts C18 passing through the threaded holes C16 and the threaded holes D17. The height position of the mounting box 3 can also be adjusted by the threaded holes C16 and the threaded holes D17.

[0024] In use, a plurality of devices of the present application can be installed at appropriate positions on the back of the temporary door 1. In the present embodiment, two devices of the present application are installed on one side of the temporary door 1, and the other side of the temporary door 1 is provided with a plurality of mounting boxes 3. Figure 1 Only one of the temporary doors 1 is drawn in the figure. The number of devices and the installation positions of the mounting boxes 3 are selected according to the length of the temporary door 1, and the up-down position of the mounting box 3 is adjusted according to the terrain undulation of the construction site.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some technical features can be replaced by equivalents. These modifications or replacements do not change the essence of the corresponding technical solutions beyond the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A temporary gate support and rotation device for construction sites, comprising a spring-loaded caster wheel (2), characterized in that: The upper end of the spring universal wheel (2) is fixed to the upper wall inside the mounting box (3). The mounting box (3) is closed at the top and open at the bottom. The universal wheel (4) of the spring universal wheel (2) extends downward out of the mounting box (3). The mounting box (3) is welded to the lower middle part of a U-shaped mounting plate (5). The left and right side plates of the U-shaped mounting plate (5) are provided with several threaded holes A (6) from top to bottom. The U-shaped mounting plate (5) is located inside a U-shaped fixing plate (7). The left and right side plates of the U-shaped fixing plate (7) are provided with several threaded holes B (8) corresponding to the threaded holes A (6) from top to bottom. The U-shaped mounting plate (5) and the U-shaped fixing plate (7) are fixed together by bolts A (9) passing through the threaded holes A (6) and B (8). The U-shaped fixing plate (7) is fixed on a vertical support rod (10). The support rod (10) is fixed to the lower part of the temporary gate (1).

2. The temporary gate support and rotation device for construction sites according to claim 1, characterized in that: The upper end of the support rod (10) is integrally provided with a U-shaped clamp A (11), which is fixed on the lower horizontal back rib (12) of the temporary gate (1). The U-shaped clamp A (11) is provided with a fastening bolt A (13). The lower end of the support rod (10) is integrally provided with a U-shaped clamp B (14), which is fixed on the bottom of the temporary gate (1). The side of the U-shaped clamp B (14) is provided with a fastening bolt B (15).

3. The temporary gate support and rotation device for construction sites according to claim 1, characterized in that: The support rod (10) is welded to the lower part of the temporary gate (1).

4. The construction site temporary gate support and rotation device according to claim 2 or 3, characterized in that: The support rod (10) has several threaded holes C (16) from top to bottom, and the U-shaped fixing plate (7) has several threaded holes D (17) from top to bottom on the middle plate. The U-shaped fixing plate (7) is fixed to the support rod (10) by bolts C (18) passing through the threaded holes C (16) and D (17).

5. The construction site temporary gate support and rotation device according to claim 2 or 3, characterized in that: The spring caster (2) includes a caster (4) and a bracket (20). A support column (21) is fixed on the upper surface of the bracket (20). The upper part of the support column (21) is slidably sleeved in the guide column cylinder (22). A spring (23) is sleeved on the support column (21). The upper end of the spring (23) is fixed on the lower surface of the guide column cylinder (22), and the lower end of the spring (23) is fixed on the upper surface of the bracket (20).

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