Small portal frame

Abstract

The utility model belongs to the technical field of portal frames, and particularly relates to a small portal frame which comprises two bottom frames. During use, the extension blocks are drawn out from the bottom frame, the universal wheels are arranged downwards and are convenient to move when the ground is smooth and hard, the threaded rods are screwed into the appropriate extension holes, the length of the bottom frame can be increased according to needs, and therefore the supporting stability is improved, and the universal wheels are difficult to move when the ground is bumpy or loose and soft. The position of a supporting rod in a sleeve is adjusted according to needs, a pin rod is inserted, the height of a cross beam is increased or decreased, a B-type pin is inserted into a pin hole for locking, the cross beam is inserted into a clamping rail, the cross beam is limited front and back, and an inserting rod is inserted into an inserting hole at the same time; and flexible adjustment can be carried out according to different construction conditions, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry frames, in particular to a small gantry frame. Background Art

[0002] A gantry crane is a portal crane, which is mainly composed of a load-bearing main beam (i.e., crossbeam) and two legs (i.e., columns) installed at the lower part of the two ends of the load-bearing main beam to form a portal frame structure. It is mainly used for loading and unloading lifting operations in outdoor cargo yards, material yards, and bulk cargo. The outdoor gantry structure is large and occupies a large space, and is basically not suitable for indoor lifting operations. For indoor lifting operations, it is common to install a smaller gantry in a larger space or in a production workshop.

[0003] When some existing gantries are used, it is difficult to flexibly adjust them at different construction sites due to different construction conditions, resulting in poor practicality; therefore, a small gantry is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a small gantry to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small gantry, including a base frame, the number of the base frames is two, the inner side wall of the base frame is slidably connected with a pair of extension blocks, the inner side wall of the extension block is provided with evenly distributed extension holes, the inner side wall of one of the extension holes is threadedly connected with a threaded rod, the lower surface of the extension block is installed with a universal wheel, the upper surface of the extension block is fixedly connected with an anti-slip pad, the upper surface of the base frame is fixedly connected with a pair of supporting oblique frames, the adjacent sides of the two supporting oblique frames are fixedly connected with sleeves, the inner side wall of the sleeve is slidably connected with a support rod, the inner side wall of the support rod is provided with evenly distributed adjustment holes, the inner side wall of one of the adjustment holes is inserted with a pin rod, and the upper surface of the support rod is provided with a crossbeam.

[0006] As a further preferred embodiment of the technical solution: a pin hole is formed on the inner side wall of the pin rod, and a B-type pin is inserted into the inner side wall of the pin hole.

[0007] As a further preferred embodiment of the technical solution: a rail is fixedly connected to the upper surface of the support rod, and an outer side wall of the crossbeam is slidably connected to an inner side wall of the rail.

[0008] As a further preferred embodiment of the technical solution: an insertion hole is provided on the inner side wall of the rail, an insertion rod is inserted into the inner side wall of the insertion hole, and the upper end of the insertion rod is fixedly connected to the lower surface of the beam.

[0009] As a further preferred embodiment of the technical solution: both the left and right side walls of the crossbeam are fixedly connected with hook plates.

[0010] As a further preferred embodiment of the technical solution: the inner side wall of the crossbeam is slidably connected with a hanger.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the utility model is used, the extension block is pulled out from the base frame. When the ground is smooth and hard, the universal wheel is set downward for easy movement. The threaded rod is screwed into a suitable extension hole, and the length of the base frame can be extended as needed, thereby increasing the stability of the support. When the ground is bumpy or soft, the universal wheel is difficult to move. The extension block is pulled out and turned over to set the anti-skid pad downward, so that the bottom support is not easy to shake. The position of the support rod in the sleeve is adjusted as needed and the pin rod is inserted to raise or lower the height of the beam, the B-type pin is inserted into the pin hole for locking, the beam is inserted into the rail, and it is limited front and rear. The insertion rod is simultaneously inserted into the insertion hole to limit it left and right, and the installation of the small gantry is completed. It can be flexibly adjusted according to different construction conditions, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the extension block, universal wheel and anti-skid pad in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the pin rod, the clamping rail and the plug hole in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the cross beam, the insert rod and the hook plate in the utility model.

[0017] In the figure: 1. base frame; 2. extension block; 3. extension hole; 4. threaded rod; 5. universal wheel; 6. anti-skid pad; 7. supporting diagonal frame; 8. sleeve; 9. support rod; 10. adjustment hole; 11. pin rod; 12. cross beam; 13. pin hole; 14. B-type pin; 15. rail; 16. socket; 17. plug rod; 18. hook plate; 19. sling. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] See also Figure 1-4 The utility model provides a technical solution: a small gantry, including a base frame 1, the number of base frames 1 is two, the inner side wall of the base frame 1 is slidably connected with a pair of extension blocks 2, the inner side wall of the extension block 2 is provided with evenly distributed extension holes 3, the inner side wall of one extension hole 3 is threadedly connected with a threaded rod 4, the lower surface of the extension block 2 is installed with a universal wheel 5, the upper surface of the extension block 2 is fixedly connected with an anti-slip pad 6, the upper surface of the base frame 1 is fixedly connected with a pair of supporting oblique frames 7, the adjacent sides of the two supporting oblique frames 7 are fixedly connected with a sleeve 8, the inner side wall of the sleeve 8 is slidably connected with a support rod 9, the inner side wall of the support rod 9 is provided with evenly distributed adjustment holes 10, a pin rod 11 is inserted into the inner side wall of an adjustment hole 10, and the upper surface of the support rod 9 is provided with a crossbeam 12; when in use, according to construction requirements , assemble the gantry, pull the anti-skid pad 6, and pull the extension block 2 out of the base frame 1 to a suitable position. When the ground is smooth and hard, the universal wheel 5 is set downward to facilitate the movement of the gantry. Screw the threaded rod 4 into the appropriate extension hole 3, and the length of the base frame 1 can be extended as needed, thereby increasing the stability of the support. When the ground is bumpy or soft, the universal wheel 5 is difficult to move. Pull out the extension block 2 and turn it over, so that the anti-skid pad 6 is set downward, so that the bottom support is not easy to shake. Adjust the position of the support rod 9 in the sleeve 8 as needed to raise or lower the height of the beam 12, and insert the pin rod 11 into the appropriate adjustment hole 10 to complete the installation of the small gantry. It can be flexibly adjusted according to different construction conditions, thereby improving practicality.

[0021] In this embodiment, specifically: a pin hole 13 is opened on the inner side wall of the pin rod 11, and a B-type pin 14 is inserted into the inner side wall of the pin hole 13; the B-type pin 14 is elastic, and inserting the B-type pin 14 into the pin hole 13 can prevent the pin rod 11 from slipping out of the adjustment hole 10.

[0022] In this embodiment, specifically: the upper surface of the support rod 9 is fixedly connected with the rail 15, and the outer wall of the crossbeam 12 is slidably connected to the inner wall of the rail 15; the crossbeam 12 is inserted into the rail 15 and limited in front and rear positions.

[0023] In this embodiment, specifically: a hole 16 is opened on the inner side wall of the rail 15, and a rod 17 is inserted into the inner side wall of the hole 16, and the upper end of the rod 17 is fixedly connected to the lower surface of the beam 12; when the beam 12 is inserted into the rail 15, the rod 17 is simultaneously inserted into the hole 16 to limit its left and right positions.

[0024] In this embodiment, specifically: the left and right side walls of the cross beam 12 are both fixedly connected with hook plates 18 ; when the two support rods 9 are separated from each other, the hook plates 18 can reduce the pulling force on the insertion rod 17 .

[0025] In this embodiment, specifically: the inner side wall of the cross beam 12 is slidably connected with a sling 19; the sling 19 can be used to load and unload cargo.

[0026] The working principle of the utility model is as follows: when in use, the gantry is assembled according to construction requirements, the anti-skid pad 6 is pulled, and the extension block 2 is pulled out of the base frame 1 to a suitable position. When the ground is smooth and hard, the universal wheel 5 is set downward to facilitate the movement of the gantry, and the threaded rod 4 is screwed into the appropriate extension hole 3, so that the length of the base frame 1 can be extended as needed, thereby increasing the stability of the support. When the ground is bumpy or soft, the universal wheel 5 is difficult to move, and the extension block 2 is pulled out and turned over, so that the anti-skid pad 6 is set downward, so that the bottom support is not easy to shake, according to the needs. To adjust the position of the support rod 9 in the sleeve 8, thereby raising or lowering the height of the beam 12, insert the pin rod 11 into the appropriate adjustment hole 10, insert the B-type pin 14 into the pin hole 13, which can prevent the pin rod 11 from slipping out of the adjustment hole 10, insert the beam 12 into the rail 15, limit its front and rear positions, and insert the insertion rod 17 into the insertion hole 16 at the same time to limit its left and right positions. Under the action of the gravity of the beam 12, the sling 19 and the cargo, the beam 12 is not easy to separate from the rail 15 from the upper side, and the installation of the small gantry is completed. It can be flexibly adjusted according to different construction conditions, thereby improving practicality.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small gantry, comprising a base frame (1), characterized in that: The number of the base frames (1) is two, the inner side wall of the base frame (1) is slidably connected to a pair of extension blocks (2), the inner side wall of the extension block (2) is provided with evenly distributed extension holes (3), the inner side wall of one of the extension holes (3) is threadedly connected to a threaded rod (4), the lower surface of the extension block (2) is installed with a universal wheel (5), the upper surface of the extension block (2) is fixedly connected to an anti-slip pad (6), the upper surface of the base frame (1) is fixedly connected to a pair of supporting oblique frames (7), the adjacent sides of the two supporting oblique frames (7) are fixedly connected to a sleeve (8), the inner side wall of the sleeve (8) is slidably connected to a support rod (9), the inner side wall of the support rod (9) is provided with evenly distributed adjustment holes (10), the inner side wall of one of the adjustment holes (10) is inserted with a pin rod (11), and the upper surface of the support rod (9) is provided with a crossbeam (12).

2. The small gantry according to claim 1, characterized in that: The inner side wall of the pin rod (11) is provided with a pin hole (13), and the inner side wall of the pin hole (13) is inserted with a B-shaped pin (14).

3. The small gantry according to claim 1, characterized in that: The upper surface of the support rod (9) is fixedly connected to a rail (15), and the outer side wall of the cross beam (12) is slidably connected to the inner side wall of the rail (15).

4. The small gantry according to claim 3, characterized in that: The inner side wall of the clamping rail (15) is provided with an insertion hole (16), the inner side wall of the insertion hole (16) is provided with an insertion rod (17), and the upper end of the insertion rod (17) is fixedly connected to the lower surface of the crossbeam (12).

5. The small gantry according to claim 1, characterized in that: The left and right side walls of the cross beam (12) are both fixedly connected with hook plates (18).

6. The small gantry according to claim 1, characterized in that: The inner side wall of the cross beam (12) is slidably connected with a hanger (19).

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