A telescopic jib with an easy adjustment of the elevation angle

Abstract

The utility model discloses a telescopic boom convenient to adjust elevation, including electric telescopic boom body, electric telescopic boom body one end both sides all fixed mounting has L type side load plate, the hook one end rotation is installed in long screw rod one end, L type side load plate other end is inserted together with the one pin hole of being located on rear end pipe base through the pin rod. The utility model has beneficial effect at: through with L type side load plate and the rotation connecting point between front end pipe base as the center of circle will at least three pin holes distribute and open in rear end pipe base, rotate long screw rod to the electric telescopic boom body one end connected through hook, ring upward or downward side push, the hole structure of L type side load plate other end is removed to every pin hole and carries out the plug -in connection of pin rod, and can adjust to L type side load plate other end side, can respond telescopic boom's elevation adjustment, so as to complete the end height after the maximum extension of the hook hanging spreader.

Description

Technical Field

[0001] This utility model relates to the field of electric telescopic lifting devices, specifically a telescopic boom that is easy to adjust the elevation angle. Background Technology

[0002] An electric telescopic boom is a specialized lifting device that is electrically driven and can automatically adjust its length to accommodate containers of different sizes. Once the electric telescopic boom is fixed at its height, its telescopic angle remains constant, resulting in limited adjustment of the maximum extended height and hindering convenient and flexible height adjustment via the telescopic angle. Therefore, this paper proposes a telescopic boom with an adjustable telescopic angle to address the aforementioned problem. Utility Model Content

[0003] The purpose of this invention is to provide a telescopic boom that is easy to adjust the elevation angle in order to solve the above problems.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a telescopic boom that facilitates adjustment of elevation angle, comprising an electric telescopic boom body, wherein L-shaped side plates are fixedly installed on both sides of one end of the electric telescopic boom body, and one end of the L-shaped side plate is rotatably connected to the front tube seat located in the middle of the front end of the rectangular frame via a rotating shaft; a ring is welded to the bottom of one end of the electric telescopic boom body, and a hook is hooked on the ring; one end of the hook is rotatably installed on one end of a long screw, and the long screw is threadedly connected to the inside of a threaded short tube located in the middle of the rectangular frame; the other end of the L-shaped side plate is inserted into one of the pin holes on the rear tube seat via a pin rod.

[0005] In a further technical solution, the pin holes are in groups of at least three, and the three pin holes are located on the same arc.

[0006] In a further technical solution, the bottom of the rear tube seat is welded and fixed to the middle of the rear end of the rectangular carrier.

[0007] In a further technical solution, connecting rods are rotatably mounted on both sides of the threaded short pipe, and one end of the connecting rod is fixedly connected to the middle of the rectangular carrier.

[0008] In a further technical solution, a hook lifting device is installed at the other end of the electric telescopic boom body.

[0009] Compared with the prior art, the advantages of this utility model are as follows: by distributing at least three pin holes on the rear tube seat with the rotation connection point between the L-shaped side plate and the front tube seat as the center, and simultaneously rotating the long screw to push one end of the electric telescopic boom body connected by the hook and the ring upward or downward, it is convenient for the hole structure at the other end of the L-shaped side plate to move to each pin hole and implement the pin insertion connection. It can also adjust the side rotation of the other end of the L-shaped side plate to accommodate the elevation angle adjustment of the telescopic boom, so as to complete the end height after the hook and lifting device is fully extended. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a side view of the overall structure of this utility model; Figure 2 This is a side view of the overall partial structure of this utility model; Figure 3 for Figure 2 Top view of the connecting structure.

[0012] In the diagram: 1. Electric telescopic boom body; 2. Hook lifting device; 3. L-shaped side plate; 4. Ring; 5. Long screw; 510. Hook; 6. Threaded short pipe; 7. Front end pipe seat; 8. Rectangular frame; 9. Rear end pipe seat; 910. Pin hole; 10. Pin rod. Detailed Implementation

[0013] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Please see Figure 1-3 As shown, a telescopic boom that facilitates adjustment of elevation angle includes an electric telescopic boom body 1. L-shaped side plates 3 are fixedly installed on both sides of one end of the electric telescopic boom body 1. One end of the L-shaped side plates 3 is rotatably connected to a front tube seat 7 located at the center of the front end of a rectangular frame 8 via a pivot. A ring 4 is welded to the bottom of one end of the electric telescopic boom body 1, and a hook 510 is hooked onto the ring 4. One end of the hook 510 is rotatably installed on one end of a long screw 5, and the long screw 5 is internally threadedly connected to a threaded short tube 6 located in the center of the rectangular frame 8. The other end of the L-shaped side plates 3 is inserted into one of the pin holes 910 located on the rear tube seat 9 via a pin 10. The pin holes 910 are at least three in a group, and the three pin holes 910 are located on the same arc, which facilitates changing the connection and fixing position.

[0017] The bottom of the rear tube seat 9 is welded and fixed to the middle of the rear end of the rectangular carrier 8.

[0018] Both sides of the threaded short pipe 6 are rotatably mounted with connecting rods, and one end of the connecting rod is fixedly connected to the middle of the rectangular carrier 8.

[0019] The other end of the electric telescopic boom body 1 is equipped with a hook lifting device 2.

[0020] Compared with the prior art, the advantages of this utility model are as follows: by taking the rotation connection point between the L-shaped side plate 3 and the front tube seat 7 as the center, at least three pin holes 910 are distributed on the rear tube seat 9. At the same time, by rotating the long screw 5, one end of the electric telescopic boom body 1 connected by the hook 510 and the ring 4 is pushed upward or downward, which makes it easy for the hole structure at the other end of the L-shaped side plate 3 to move to each pin hole 910 and implement the insertion connection of the pin 10. It can also adjust the side rotation of the other end of the L-shaped side plate 3 to cope with the elevation angle adjustment of the telescopic boom so as to complete the end height after the hook and lifting device 2 is fully extended.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions 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 this utility model.

Claims

1. A telescopic boom that is easy to adjust the elevation angle, characterized in that: The device includes an electric telescopic boom body (1), with L-shaped side plates (3) fixedly installed on both sides of one end of the electric telescopic boom body (1). One end of the L-shaped side plate (3) is rotatably connected to the front tube seat (7) located in the middle of the front end of the rectangular frame (8) via a rotating shaft. A ring (4) is welded to the bottom of one end of the electric telescopic boom body (1), and a hook (510) is hooked on the ring (4). One end of the hook (510) is rotatably installed on one end of a long screw (5), and the long screw (5) is threadedly connected to the inside of the threaded short tube (6) located in the middle of the rectangular frame (8). The other end of the L-shaped side plate (3) is inserted into one of the pin holes (910) on the rear tube seat (9) via a pin (10).

2. The telescopic boom with adjustable elevation angle according to claim 1, characterized in that: The pin holes (910) are in groups of at least three, and the three pin holes (910) are located on the same arc.

3. A telescopic boom with adjustable elevation angle according to claim 1, characterized in that: The bottom of the rear tube seat (9) is welded and fixed to the middle of the rear end of the rectangular carrier (8).

4. A telescopic boom with adjustable elevation angle according to claim 1, characterized in that: Both sides of the threaded short pipe (6) are rotatably mounted with connecting rods, and one end of the connecting rod is fixedly connected to the middle of the rectangular frame (8).

5. A telescopic boom with adjustable elevation angle according to claim 1, characterized in that: The other end of the electric telescopic boom body (1) is equipped with a hook lifting device (2).

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