Paper tube core reinforcing assembly

Abstract

The utility model discloses a paper tube core reinforcing assembly which comprises a tube core body and tube sleeves located at the two ends of the tube core body, circular grooves are formed in the edges of the two tube sleeves, limiting rings are connected to the inner walls of the two circular grooves in a sliding mode, and a plurality of first springs distributed around the circle center in an array mode are fixedly connected between the circular grooves and the limiting rings. Limiting cylinders are fixedly connected to the upper and lower surfaces of the two pipe sleeves, threaded rods are rotatably connected to the middles of the pipe sleeves located at the upper ends in a penetrating mode, sliding blocks are connected to the outer surfaces of the threaded rods in a threaded mode, first connecting rods are rotatably connected to the two ends of each sliding block, and second connecting rods are slidably connected to the interiors of the two first connecting rods; according to the paper tube core, the edges of the two ends of the tube core body can be covered, collapse is avoided, meanwhile, the expansion plates at the two ends can be driven to expand outwards, and therefore the stability of the paper tube core is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper tubes, in particular to a paper tube core reinforcement component. Background Art

[0002] A paper tube core is a cylindrical object used to wrap and support thin, soft materials such as paper, film, and metal foil. It is the core of the paper tube, strengthening its structure and maintaining its shape.

[0003] The paper tube cores currently on the market are relatively soft, so in the process of rolling up the paper outside the paper tube core, the tube core will inevitably collapse, resulting in a high scrap rate and reduced production efficiency. For this reason, we propose a paper tube core reinforcement component. Utility Model Content

[0004] The purpose of the present invention is to provide a paper tube core reinforcement assembly to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a paper tube core reinforcement assembly, comprising a tube core body and tube sleeves arranged at both ends of the tube core body, circular grooves are provided on the edges of the two tube sleeves, the upper and lower surfaces of the two tube sleeves are fixedly connected to limiting cylinders, a threaded rod is passed through the middle of the tube sleeve at the upper end and is rotatably connected, and the threaded rod is threadedly connected to the two limiting cylinders, a slider is threadedly connected to the outer surface of the threaded rod, both ends of the slider are rotatably connected to a first connecting rod, the inside of the two first connecting rods are slidably connected to a second connecting rod, the top of one end of the two second connecting rods are rotatably connected to a connecting seat, and one side of the two connecting seats is fixedly connected to an expansion plate arranged in an arc shape.

[0006] Preferably, the inner walls of the two circular grooves are slidably connected to limit rings, and a plurality of first springs distributed in a circle-centered array are fixedly connected between the circular grooves and the limit rings.

[0007] Preferably, both side walls of the limiting cylinder at the upper end are penetrated by sliding grooves, and the sliding blocks are clamped in the sliding grooves.

[0008] Preferably, a handle is fixedly connected to the top of the threaded rod, and the threads on the outer surface of the threaded rod are bidirectionally arranged.

[0009] Preferably, a limiting groove is provided inside the first connecting rod, and a second spring is fixedly connected between the limiting groove and the second connecting rod.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: first, the handle is rotated to drive the threaded rod to rotate, and then the setting of the limit cylinder, the first spring, and the limit ring can be used to drive the tube sleeve to move in the corresponding direction, so that the edges of both ends of the tube core body can be covered to avoid collapse, and then the slider is driven to move by the threaded rod, and the setting of the first connecting rod, the second connecting rod, the spring, the connecting seat, and the expansion plate can drive the expansion plates at both ends to expand outward, thereby improving the stability of the paper tube core. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the pipe sleeve structure of the present utility model;

[0014] Figure 4 This is a schematic cross-sectional view of the limiting cylinder of the present utility model;

[0015] Figure 5 This is a schematic cross-sectional structural diagram of the first connecting rod of the present invention.

[0016] In the figure: 1. Tube core body; 2. Tube sleeve; 201. Circular groove; 21. Limiting ring; 22. First spring; 3. Limiting cylinder; 301. Slide groove; 31. Threaded rod; 32. Handle; 4. Slider; 41. First connecting rod; 42. Second spring; 401. Limiting groove; 5. Second connecting rod; 51. Connecting seat; 52. Expansion plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-5The utility model provides a technical solution: a paper tube core reinforcement component, including a tube core body 1 and tube sleeves 2 arranged at both ends of the tube core body 1, the edges of the two tube sleeves 2 are provided with circular grooves 201, the upper and lower surfaces of the two tube sleeves 2 are fixedly connected to the limiting cylinders 3, the middle of the upper end tube sleeves 2 is penetrated and rotatably connected with a threaded rod 31, and the threaded rod 31 is threadedly connected to the two limiting cylinders 3, the outer surface of the threaded rod 31 is threadedly connected with a slider 4, both ends of the slider 4 are rotatably connected to a first connecting rod 41, the inside of the two first connecting rods 41 are slidably connected to a second connecting rod 5, the top of one end of the two second connecting rods 5 are rotatably connected to a connecting seat 51, and one side of the two connecting seats 51 is fixedly connected to an expansion plate 52 arranged in an arc shape.

[0019] Furthermore, the inner walls of the two circular grooves 201 are slidably connected to the limit rings 21, and a plurality of first springs 22 distributed in a circle array are fixedly connected between the circular grooves 201 and the limit rings 21. The movement of the sleeve 2 will compress the first springs 22 through the limit rings 21.

[0020] Furthermore, both side walls of the upper end limiting cylinder 3 are penetrated by sliding grooves 301 , and the sliders 4 are stuck in the sliding grooves 301 . The sliders 4 will slide up and down along the sliding grooves 301 , and the sliding grooves 301 can limit the sliders 4 .

[0021] Furthermore, a handle 32 is fixedly connected to the top of the threaded rod 31 , and the threads on the outer surface of the threaded rod 31 are bidirectionally arranged. The threaded rod 31 with bidirectional threads can move the limiting cylinder 3 in corresponding directions.

[0022] Furthermore, a limiting groove 401 is provided inside the first connecting rod 41 , and a second spring 42 is fixedly connected between the limiting groove 401 and the second connecting rod 5 , so that the second spring 42 can buffer the second connecting rod 5 .

[0023] Specifically, when using the present invention, first, the threaded rod 31 is rotated by rotating the handle 32, and the threaded rod 31 drives the two limiting cylinders 3 to move in corresponding directions, so that the limiting cylinder 3 will drive the two tube sleeves 2 to move, and the movement of the tube sleeves 2 will compress the first spring 22 through the limiting ring 21, so that the edges of both ends of the tube core body 1 can be covered to prevent the edges of both ends of the tube core body 1 from collapsing. At the same time, the rotation of the threaded rod 31 will drive the slider 4 to move downward, and then the slider 4 will drive the first connecting rods 41 at both ends to move downward, and the first connecting rod 41 rotates along the slider 4. At this time, the first connecting rod 41 will slide along the second connecting rod 5, thereby compressing the second spring 42. When the second connecting rod 5 is subjected to force, it will drive the expansion plates 52 to expand outward respectively through the connecting seat 51, thereby improving the stability of the paper tube core.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper tube core reinforcement assembly, comprising a tube core body (1) and tube sleeves (2) disposed at both ends of the tube core body (1), characterized in that: The edges of the two pipe sleeves (2) are provided with circular grooves (201), the upper and lower surfaces of the two pipe sleeves (2) are fixedly connected to the limiting cylinders (3), the middle part of the upper pipe sleeve (2) is penetrated by a threaded rod (31) and is rotatably connected, and the threaded rod (31) is threadedly connected to the two limiting cylinders (3), the outer surface of the threaded rod (31) is threadedly connected to a slider (4), both ends of the slider (4) are rotatably connected to a first connecting rod (41), the interior of the two first connecting rods (41) is slidably connected to a second connecting rod (5), the top of one end of the two second connecting rods (5) is rotatably connected to a connecting seat (51), and one side of the two connecting seats (51) is fixedly connected to an expansion plate (52) arranged in an arc shape.

2. The paper tube core reinforcement assembly according to claim 1, characterized in that: The inner walls of the two circular grooves (201) are both slidably connected to a limiting ring (21), and a plurality of first springs (22) distributed in a circle-centered array are fixedly connected between the circular grooves (201) and the limiting rings (21).

3. The paper tube core reinforcement assembly according to claim 1, characterized in that: Both side walls of the limiting cylinder (3) at the upper end are penetrated by sliding grooves (301), and the sliding blocks (4) are clamped in the sliding grooves (301).

4. The paper tube core reinforcement assembly according to claim 1, characterized in that: A handle (32) is fixedly connected to the top of the threaded rod (31), and the threads on the outer surface of the threaded rod (31) are bidirectionally arranged.

5. The paper tube core reinforcement assembly according to claim 1, characterized in that: A limiting groove (401) is provided inside the first connecting rod (41), and a second spring (42) is fixedly connected between the limiting groove (401) and the second connecting rod (5).

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