CN212247974U - Adjustable manual lifting simple portal frame - Google Patents

Abstract

The utility model relates to the technical field of portal frames, in particular to an adjustable manual lifting simple portal frame, which comprises two upright posts and a cross rod, wherein through holes are arranged at two ends of the cross rod, the lower surfaces of the two upright posts are provided with installation reserved holes, one side of the two upright posts is provided with a rectangular opening, the inner walls of the upright posts in the rectangular opening are fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotatably connected with an adjusting mechanism, and the adjusting mechanism is provided with a limit bolt and an adjusting mechanism, so that when the height is adjusted, the limit bolt and the limit nut are only needed to be removed, then the adjusting mechanism is slowly adjusted from the vertical direction to the horizontal direction, so that the cross rod moves downwards to the height which can be adjusted by workers, then after the height is adjusted according to the requirement according to a scale mark, the cross rod is fixed through a fastening device, thereby facilitating use.

Description

Adjustable manual lifting simple portal frame

Technical Field

The utility model relates to a portal frame technical field, in particular to simple and easy portal frame of adjustable manual lifting.

Background

The height limiting frame is a door-shaped framework used for a bridge, a culvert, a tunnel entrance and an urban road entrance, is generally formed by welding steel structures, and plays a role in protecting the bridge, the culvert, the tunnel and the urban road. "height limiting" as the name implies acts to limit the height through the vehicle.

With the development of the society, height-limiting frames are increasingly used in various occasions, for example, under the conditions that temporary traffic control is carried out on parking lots or narrow roads, simple gantries need to be used, most of the existing simple gantries are simple in structure, manual adjustment cannot be achieved, and although some simple gantries can be manually adjusted, tools such as escalators need to be used during adjustment, so that the adjustment is troublesome and inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple and easy portal frame of adjustable manual promotion to solve the current simple and easy portal frame simple structure who provides among the above-mentioned background art, manual regulation gets up comparatively trouble, the problem of not being convenient for use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a simple and easy portal frame of adjustable manual promotion, includes two stands and horizontal pole, the through-hole has been seted up at the both ends of horizontal pole, two the lower surface of stand is provided with the installation preformed hole, two the rectangle opening has all been seted up to one side of stand, in the rectangle opening equal fixedly connected with pivot on the inner wall of stand, the surface of pivot is rotated and is connected with adjustment mechanism, the pivot below first screw hole has been seted up in the outside of stand, the downthehole activity of first screw is provided with spacing bolt, one side of spacing bolt is provided with stop nut.

Preferably, the mounting prepared holes of the two upright columns are fixedly connected with the ground through expansion bolts.

Preferably, the first threaded hole penetrates through the rectangular opening and is communicated with the rectangular opening.

Preferably, adjustment mechanism includes the regulating plate, one side of regulating plate is provided with the recess, and passes through the recess rotates to be connected the pivot, the upper end of regulating plate is provided with the regulation hole with array, be provided with the spacer pin in the regulation hole, the lower extreme of regulating plate is provided with the second screw hole.

Preferably, one side of the adjusting hole is correspondingly provided with scale marks.

Preferably, a bearing is arranged in the groove and is rotatably connected to the outer surface of the rotating shaft through the bearing.

Preferably, the first threaded hole of the upright is the same size as the second threaded hole of the adjustment plate.

Preferably, the aperture of the through hole of the cross rod is slightly larger than the diameter of the limit pin.

The utility model discloses a technological effect and advantage:

1. the limiting bolt and the limiting nut are only required to be removed when the height is adjusted by arranging the limiting bolt and the adjusting mechanism, then the adjusting mechanism is slowly adjusted from the vertical direction to the horizontal direction, so that the cross rod moves downwards to the height which can be adjusted by workers, then the cross rod is fixed by the fastening device after the height is adjusted according to the scale marks as required, and the height can be manually adjusted without the help of an escalator, so that the height-adjustable horizontal bar is convenient to use;

2. the upright post is provided with the rectangular opening, so that the use material of the upright post is saved to a certain extent, the production cost is reduced, and the mass is lightened; and owing to set up the rectangle opening to can reduce the windage to a certain extent, improve the utility model discloses a security.

Drawings

Fig. 1 is a schematic structural diagram of the structure of the present invention.

Fig. 2 is a cross-sectional view of the column of the present invention.

Fig. 3 is a schematic structural diagram of the adjusting plate of the present invention.

Fig. 4 is a schematic structural view of the cross bar of the present invention.

In the figure: 1. a column; 2. a cross bar; 3. a through hole; 4. mounting a preformed hole; 5. a rectangular opening; 6. a rotating shaft; 7. a first threaded hole; 8. a limit bolt; 9. a limit nut; 10. an adjusting plate; 11. an adjustment hole; 12. a spacing pin; 13. a second threaded hole; 14. scale lines; 15. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a as shown in fig. 1-4 simple and easy portal frame of adjustable manual promotion, including two stands 1 and horizontal pole 2, through-hole 3 has been seted up at the both ends of horizontal pole 2, the lower surface of two stands 1 is provided with installation preformed hole 4, rectangle opening 5 has all been seted up to one side of two stands 1, equal fixedly connected with pivot 6 on the inner wall of stand 1 in the rectangle opening 5, the surface of pivot 6 rotates and is connected with adjustment mechanism, first screw hole 7 has been seted up in the outside of stand 1 of pivot 6 below, the activity is provided with stop bolt 8 in the first screw hole 7, one side of stop bolt 8 is provided with stop nut 9.

As shown in FIG. 2, the mounting prepared holes 4 of the two columns 1 are fixedly connected with the ground through expansion bolts, and the first threaded holes 7 penetrate through the rectangular opening 5 and are communicated with the rectangular opening 5.

Referring to fig. 2 and 3, the adjusting mechanism includes an adjusting plate 10, a groove is disposed on one side of the adjusting plate 10, and the rotating shaft 6 is connected through the groove in a rotating manner, adjusting holes 11 are disposed in an array manner on the upper end of the adjusting plate 10, a limit pin 12 is disposed in the adjusting holes 11, a second threaded hole 13 is disposed at the lower end of the adjusting plate 10, a scale mark 14 is correspondingly disposed on one side of the adjusting hole 11, a bearing 15 is disposed in the groove, and the adjusting hole is rotatably connected to the outer surface of the rotating shaft 6 through the bearing 15, the first threaded hole 7 of the upright post 1 is the same as the second threaded hole 13 of the adjusting plate 10 in size, so that the upright post is fixed through a limit bolt 8 and a limit nut 9, the aperture of the through hole 3 of the cross rod 2 is slightly.

This practical theory of operation: during installation, the installation preformed holes 4 of the two upright columns 1 are connected through expansion bolts, so that the two upright columns 1 are fixed on two sides of a road, when the road is used for the first time, the through holes 3 at two ends of the cross rod 2 are aligned with one of the adjusting holes 11 on the two adjusting plates 10, the limiting pin 12 is inserted, then the adjusting plates 10 are rotated by 180 degrees, so that the cross rod 2 is rotated to the upper end of the rotating shaft 6, then the second threaded holes 13 at the lower ends of the adjusting plates 10 are aligned with the first threaded holes 7 on the outer sides of the upright columns 1, and then the adjusting plates are fixed through the matching of the limiting bolts 8 and the limiting nuts 9;

when the adjustment is needed, two workers remove the limit bolt 8 and the limit nut 9 below the upright post 1 at the same time, then the two workers respectively hold the adjusting plate 10 to enable the adjusting plate 10 to slowly rotate to the horizontal position under the action of the rotating shaft 6, then remove the limit pin 12, so that the cross rod 2 can be taken down, then according to the method when in primary use, according to the height to be adjusted, the through holes 3 at the two ends of the cross rod 2 are aligned to the adjusting holes 11 aligned with the corresponding scale values on the adjusting plate 10 according to the scale marks 14, then the through holes are respectively fixed with the two adjusting plates 10 through the limit pins 12, finally the adjusting plate 10 is rotated 180 degrees, the cross rod 2 rotates to the upper end of the rotating shaft 6, then the second threaded hole 13 at the lower end of the adjusting plate 10 is aligned with the first threaded hole 7 at the outer side of the upright post 1, and then the limiting bolt 8 is fixed with the limit, the height can be manually adjusted without the help of an escalator, so that the height adjusting device is convenient to use, the stand column 1 is provided with the rectangular opening 5, the used materials of the stand column 1 are saved to a certain extent, the production cost is reduced, and the quality is lightened; and owing to set up rectangle opening 5 to can reduce the windage to a certain extent, improve the utility model discloses a security.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims (8)

1. The utility model provides a simple and easy portal frame of adjustable manual lift, includes two stands (1) and horizontal pole (2), its characterized in that: through-hole (3) have been seted up at the both ends of horizontal pole (2), two the lower surface of stand (1) is provided with installation preformed hole (4), two rectangle opening (5) have all been seted up to one side of stand (1), in rectangle opening (5) equal fixedly connected with pivot (6) on the inner wall of stand (1), the surface of pivot rotates and is connected with adjustment mechanism, pivot (6) below first screw hole (7) have been seted up in the outside of stand (1), first screw hole (7) internalization is provided with stop bolt (8), one side of stop bolt (8) is provided with stop nut (9).

2. The adjustable manual lifting simple portal frame of claim 1, wherein: the mounting preformed holes (4) of the two upright columns (1) are fixedly connected with the ground through expansion bolts.

3. The adjustable manual lifting simple portal frame of claim 1, wherein: the first threaded hole (7) penetrates through the rectangular opening (5) and is communicated with the rectangular opening (5).

4. The adjustable manual lifting simple portal frame of claim 1, wherein: adjustment mechanism includes regulating plate (10), one side of regulating plate (10) is provided with the recess, and passes through the recess rotates to be connected pivot (6), the upper end of regulating plate (10) is provided with regulation hole (11) with array, be provided with spacer pin (12) in regulation hole (11), the lower extreme of regulating plate (10) is provided with second screw hole (13).

5. The adjustable manual lifting simple portal frame of claim 4, wherein: and one side of the adjusting hole (11) is correspondingly provided with scale marks (14).

6. The adjustable manual lifting simple portal frame of claim 4, wherein: a bearing (15) is arranged in the groove, and the groove is rotatably connected to the outer surface of the rotating shaft (6) through the bearing (15).

7. The adjustable manual lifting simple portal frame of claim 4, wherein: the first threaded hole (7) of the upright (1) is the same size as the second threaded hole (13) of the adjusting plate (10).

8. The adjustable manual lifting simple portal frame of claim 7, wherein: the aperture of the through hole (3) of the cross rod (2) is slightly larger than the diameter of the limiting pin (12).

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