An adjustable bag mouth opening prop

By designing an adjustable bag opening support, and utilizing a combination of a telescopic adjustment rod and an L-shaped opening frame with an empty tube, the problem of inconvenient adjustment in existing devices is solved, enabling flexible adaptation and stable opening of the bag opening, thereby improving bagging efficiency and ease of operation.

CN224491785UActive Publication Date: 2026-07-14徐晓燕

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
徐晓燕
Filing Date
2025-09-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing bag opening devices suffer from problems such as inconvenient adjustment, limited applicability to a single bag type, and lack of convenient mobility, resulting in low bagging efficiency and high labor intensity.

Method used

An adjustable bag opening support was designed, which uses a telescopic adjustment rod and an L-shaped opening frame that slides with the empty tube. Combined with a threaded knob and a self-locking universal wheel, it can flexibly adjust and fix the height and width of the bag opening.

Benefits of technology

It achieves flexible opening to adapt to different bag opening sizes, improves bagging efficiency, reduces labor intensity, and has a stable and reliable structure.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224491785U_ABST
    Figure CN224491785U_ABST
Patent Text Reader

Abstract

An adjustable bag mouth opening support, including, the first telescopic adjusting rod is fixedly connected with both sides of the upper end face of the bottom frame, the second telescopic adjusting rod is fixedly connected to the front side of the upper end face of the bottom frame, both the L-shaped opening supports are fixedly connected to the upper end of the first telescopic adjusting rod, the hollow pipe is fixedly connected to the upper end of the second telescopic adjusting rod, both the L-shaped opening supports are slidably connected to both ends of the hollow pipe, the screw knobs two are threadedly connected to both ends of the upper side of the hollow pipe, the four legs of the lower end face of the bottom frame are fixedly connected with self-locking universal wheels, the first telescopic adjusting rod and the second telescopic adjusting rod are slidably connected with the L-shaped opening supports and the hollow pipe, the L-shaped opening supports are slidably connected with the hollow pipe, the screw knobs two are threadedly connected to both ends of the upper side of the hollow pipe, and the four legs of the lower end face of the bottom frame are fixedly connected with self-locking universal wheels.
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Description

Technical Field

[0001] This utility model relates to the field of packaging auxiliary equipment technology, specifically to an adjustable bag opening support. Background Technology

[0002] In agricultural production, industrial packaging, and logistics, it is often necessary to pack granular or powdery materials into woven bags, burlap sacks, or other flexible packaging bags. Traditional manual bag-packing not only requires multiple people and is inefficient, but is also labor-intensive. Furthermore, the varying sizes and heights of the bag openings further complicate the process.

[0003] While some bag opening devices exist in the existing technology, such as fixed bag opening supports or opening devices for specific fruit bags, they usually suffer from problems such as inconvenient adjustment, limited applicability to a single bag type, or lack of convenient mobility. Some support frame structures are relatively simple and do not have the ability to adjust their width according to the size of the woven bag, thus reducing the scope of application of the support frame. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide an adjustable bag opening support.

[0005] To solve the above problems, the technical solution of this utility model is: an adjustable bag opening support, comprising:

[0006] The bottom frame has first telescopic adjustment rods fixedly connected to both sides of its upper end face;

[0007] The second telescopic adjustment rod is fixedly connected to the front side of the upper end of the bottom frame;

[0008] L-shaped support frame, both of the L-shaped support frames are fixedly connected to the upper end of the first telescopic adjustment rod;

[0009] An empty tube is fixedly connected to the upper end of the second telescopic adjusting rod, and the two L-shaped support frames are slidably connected to both ends of the empty tube at their close proximity ends.

[0010] Furthermore, a threaded knob is threadedly connected at the telescopic connection between the first telescopic adjusting rod and the second telescopic adjusting rod.

[0011] Furthermore, threaded knobs are threadedly connected to both ends of the upper side of the empty tube.

[0012] Furthermore, each of the four feet on the lower end face of the base frame is fixedly connected with a self-locking universal wheel.

[0013] The advantages of this invention compared to existing technologies are as follows:

[0014] This utility model, through the sliding connection design of the first and second telescopic adjustment rods and the L-shaped support frame with the empty tube, can flexibly adapt to bags of different heights and opening sizes, and has strong versatility. At the same time, it uses a threaded knob for locking and fixing, and the adjustment method is simple and intuitive. After locking, the structure is stable and can reliably open the bag opening for filling. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention. Figure 1 .

[0016] Figure 2 This is a three-dimensional schematic diagram of the present invention. Figure 2 .

[0017] As shown in the figure: 1. Base frame; 2. First telescopic adjustment rod; 3. Second telescopic adjustment rod; 4. L-shaped support frame; 5. Empty tube; 6. Threaded knob one; 7. Threaded knob two; 8. Self-locking caster wheel. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0019] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0020] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] like Figures 1 to 2 As shown, the technical solution of this utility model is: an adjustable bag opening support, mainly composed of a base frame 1, a first telescopic adjustment rod 2, a second telescopic adjustment rod 3, an L-shaped opening frame 4, an empty tube 5, a threaded knob 1 6, a threaded knob 2 7, and a self-locking universal wheel 8.

[0022] The base frame 1 is welded from metal tubing, forming a stable rectangular frame foundation. Its size can be designed as needed. At the four corners of the lower end face of the base frame 1, four self-locking casters 8 are fixedly connected by welding. The self-locking casters 8 can turn flexibly when moving and lock in position during operation to prevent the support from sliding.

[0023] Two first telescopic adjustment rods 2 are fixedly connected to the left and right sides of the upper end face of the base frame 1 by direct welding. A second telescopic adjustment rod 3 is also fixedly connected to the front middle of the upper end face of the base frame 1. Both the first telescopic adjustment rods 2 and the second telescopic adjustment rod 3 adopt a sleeve-type telescopic structure. The threaded knob 6 is threaded to its telescopic connection. Loosening the threaded knob 6 allows the adjustment rod to be pulled out to change the height. Tightening the threaded knob 6 locks the height.

[0024] At the upper ends of the two first telescopic adjustment rods 2, L-shaped support frames 4 are fixedly connected. The vertical side of the L-shaped support frame 4 is connected to the first telescopic adjustment rod 2, and the horizontal side extends backward to support the bag opening.

[0025] At the upper end of the second telescopic adjustment rod 3, a hollow tube 5 is fixedly connected. The hollow tube 5 is a straight metal tube. The ends of the two L-shaped support brackets 4 that are close to each other can be inserted into the thin rod-shaped part of the hollow tube 5 and slidably sleeved on both ends of the hollow tube 5. At the upper ends of the hollow tube 5, threaded knobs 7 are threadedly connected. Loosening the threaded knobs 7 allows the two L-shaped support brackets 4 to slide along the hollow tube 5 to adjust the width of the support opening. After adjusting to the appropriate position, tightening the threaded knobs 7 will lock the width.

[0026] In practical use, first, according to the height of the bag, loosen the threaded knob 6, adjust the first telescopic adjustment rod 2 and the second telescopic adjustment rod 3 to a suitable height, and then lock them. Then, according to the width of the bag opening, loosen the threaded knob 7, slide the two L-shaped support frames 4 to adjust the width to be slightly smaller than the bag opening, and then lock them. Place the bag on the support frame composed of the two L-shaped support frames 4 and the empty tube 5, and let the bag opening open naturally. Single-person bagging can then be carried out. After bagging is completed, unlock the brake of the self-locking universal wheels 8, and the full bag can be easily pushed to the designated location.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An adjustable bag opening support, characterized in that, include: The bottom frame (1) has a first telescopic adjustment rod (2) fixedly connected to both sides of the upper end face of the bottom frame (1). The second telescopic adjustment rod (3) is fixedly connected to the front side of the upper end of the bottom frame (1); L-shaped support frame (4), both of the L-shaped support frames (4) are fixedly connected to the upper end of the first telescopic adjustment rod (2); Empty tube (5), the empty tube (5) is fixedly connected to the upper end of the second telescopic adjustment rod (3), and the two L-shaped support frames (4) are slidably connected to the two ends of the empty tube (5) at their close proximity.

2. The adjustable bag opening support according to claim 1, characterized in that: The first telescopic adjustment rod (2) and the second telescopic adjustment rod (3) are connected by a threaded knob (6) at the telescopic connection.

3. The adjustable bag opening support according to claim 1, characterized in that: The upper two ends of the empty tube (5) are threaded with threaded knobs (7).

4. The adjustable bag opening support according to claim 1, characterized in that: The bottom frame (1) has four self-locking casters (8) fixedly connected to its lower end face.