Paper tube with iron head at tube opening

Abstract

The utility model discloses a paper tube with a tube opening provided with an iron head, which relates to the technical field of paper tubes, and comprises a paper tube main body, an iron head mechanism is arranged at the port position of the paper tube main body, the iron head mechanism comprises an iron head ring, an expansion ring is fixedly arranged on the iron head ring, and the inner diameter of the expansion ring is gradually reduced along the direction close to the inner cavity of the paper tube main body. A plurality of linear slots are formed in the outer wall of the expansion ring at intervals; and the outer wall of the positioning block is disc-shaped. According to the utility model, the expansion ring of which the inner diameter is gradually reduced is arranged in the iron head mechanism, and a plurality of linear slots are formed in the expansion ring, so that the expansion ring can be deformed by expanding outwards, and the expansion ring can be expanded outwards to extrude the inner wall of a paper tube in cooperation with the extrusion effect of the positioning block on the inner wall of the expansion ring; therefore, the mounting stability of the iron head mechanism at the end opening of the paper tube is enhanced, meanwhile, the iron head mechanism at the end opening of the paper tube is convenient to disassemble, and the use quality of the iron head mechanism at the end opening of the paper tube is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper tube technical field, especially a paper tube with iron head of pipe mouth. BACKGROUND

[0002] At present, paper tubes are needed in many industries during packaging, and some of them are damaged easily during transportation and use because the end part is stressed more concentratedly, the winding material is heavy and the paper tube is turned around, so the iron head is generally installed at the end part of the paper tube to enhance the strength and the protection.

[0003] In the prior art, the iron head at the end part of the paper tube is mainly installed and fixed at the port of the paper tube by pressing, which leads to low connection firmness between the paper tube and the iron head, the iron head is easy to fall off during use of the paper tube, and the stability of the iron head installed at the port of the paper tube is reduced, therefore, the paper tube with the iron head of the pipe mouth is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a paper tube with iron head of pipe mouth to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a paper tube with iron head of pipe mouth, including paper tube main part, the port position of paper tube main part is installed with iron head mechanism, the iron head mechanism includes:

[0006] Iron head ring, the fixed of iron head ring is equipped with expansion ring, the inner diameter of expansion ring gradually reduces along the direction close to paper tube main part inner chamber, a plurality of straight line grooves are arranged at the interval of expansion ring outer wall;

[0007] Positioning block, the outer wall of positioning block is discoid, and the positioning block is fixedly arranged on the inner side of expansion ring, and the positioning block is used for extruding the inner chamber of positioning block.

[0008] Preferably, the annular positioning groove is arranged between the iron head ring and the expansion ring, the annular clamping groove is arranged at the port position of the paper tube main body, and the inner chamber of the annular positioning groove is movably inserted into the outer wall of the annular clamping groove.

[0009] Preferably, the thickness of the expansion ring gradually increases along the direction close to the inner chamber of the paper tube main body, and the width of the expansion ring is greater than the width of the iron head ring.

[0010] Preferably, the inner wall of the expansion ring is provided with an internal thread groove, the outer wall of the positioning block is provided with an external thread groove matched with the internal thread groove, and the positioning block is screw-connected with the internal thread groove of the inner wall of the expansion ring through the external thread groove.

[0011] Preferably, the middle part of the positioning block is provided with a polygonal through hole, and the inner wall of the polygonal through hole is polygonal.

[0012] Preferably, the linear slot is communicated with the end face of the expansion ring at one end close to the inner cavity of the paper tube body, and the length of the linear slot is less than the width of the expansion ring.

[0013] The technical effects and advantages of the present application are as follows:

[0014] The present application is characterized in that an expansion ring with gradually reduced inner diameter is arranged in the iron head mechanism, and a plurality of linear slots are arranged on the expansion ring to enable the expansion ring to expand outward, and the expansion ring is extruded by the positioning block to extrude the inner wall of the paper tube, thereby enhancing the stability of the iron head mechanism installed at the paper tube port position, facilitating the disassembly of the iron head mechanism at the paper tube port position, and improving the use quality of the iron head mechanism at the paper tube port position. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The present application is characterized in that an expansion ring with gradually reduced inner diameter is arranged in the iron head mechanism, and a plurality of linear slots are arranged on the expansion ring to enable the expansion ring to expand outward, and the expansion ring is extruded by the positioning block to extrude the inner wall of the paper tube, thereby enhancing the stability of the iron head mechanism installed at the paper tube port position, facilitating the disassembly of the iron head mechanism at the paper tube port position, and improving the use quality of the iron head mechanism at the paper tube port position.

[0016] Figure 2 The present application is characterized in that an expansion ring with gradually reduced inner diameter is arranged in the iron head mechanism, and a plurality of linear slots are arranged on the expansion ring to enable the expansion ring to expand outward, and the expansion ring is extruded by the positioning block to extrude the inner wall of the paper tube, thereby enhancing the stability of the iron head mechanism installed at the paper tube port position, facilitating the disassembly of the iron head mechanism at the paper tube port position, and improving the use quality of the iron head mechanism at the paper tube port position.

[0017] Figure 3 The present application is characterized in that an expansion ring with gradually reduced inner diameter is arranged in the iron head mechanism, and a plurality of linear slots are arranged on the expansion ring to enable the expansion ring to expand outward, and the expansion ring is extruded by the positioning block to extrude the inner wall of the paper tube, thereby enhancing the stability of the iron head mechanism installed at the paper tube port position, facilitating the disassembly of the iron head mechanism at the paper tube port position, and improving the use quality of the iron head mechanism at the paper tube port position.

[0018] Figure 4 The present application is characterized in that an expansion ring with gradually reduced inner diameter is arranged in the iron head mechanism, and a plurality of linear slots are arranged on the expansion ring to enable the expansion ring to expand outward, and the expansion ring is extruded by the positioning block to extrude the inner wall of the paper tube, thereby enhancing the stability of the iron head mechanism installed at the paper tube port position, facilitating the disassembly of the iron head mechanism at the paper tube port position, and improving the use quality of the iron head mechanism at the paper tube port position.

[0019] Figure 5 The present application is characterized in that an expansion ring with gradually reduced inner diameter is arranged in the iron head mechanism, and a plurality of linear slots are arranged on the expansion ring to enable the expansion ring to expand outward, and the expansion ring is extruded by the positioning block to extrude the inner wall of the paper tube, thereby enhancing the stability of the iron head mechanism installed at the paper tube port position, facilitating the disassembly of the iron head mechanism at the paper tube port position, and improving the use quality of the iron head mechanism at the paper tube port position.

[0020] In the drawings: 100, paper tube body; 101, annular clamping groove; 200, iron head mechanism; 201, iron head ring; 202, positioning block; 203, expansion ring; 204, linear slot; 205, inner thread groove; 206, annular positioning groove; 207, outer thread groove; 208, polygonal through hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] The present application provides a Figures 1-5The paper tube with a spout with a ferrule shown includes a paper tube body 100, and a ferrule mechanism 200 is installed at the port position of the paper tube body 100. The ferrule mechanism 200 can protect the port position of the paper tube body 100, so that the paper tube body 100 has higher port strength under the conditions of concentrated force at the end, heavy winding object and turnover winding, and the use requirement is better met, thereby improving the use quality of the paper tube body 100. The ferrule mechanism 200 includes a ferrule ring 201 and a positioning block 202. The ferrule ring 201 is fixedly provided with an expansion ring 203. An annular positioning groove 206 is arranged between the ferrule ring 201 and the expansion ring 203. The port position of the paper tube body 100 is provided with an annular clamping groove 101. The inner cavity of the annular positioning groove 206 is movably inserted with the outer wall of the annular clamping groove 101. The annular positioning groove 206 on the ferrule mechanism 200 cooperates with the annular clamping groove 101 at the port position of the paper tube body 100, so that the installation and positioning of the ferrule mechanism 200 at the port position of the paper tube body 100 are more convenient and accurate, thereby improving the installation efficiency of the ferrule mechanism 200 at the port position of the paper tube body 100, and the stability of the installation of the ferrule mechanism 200 is also improved.

[0023] Further, the inner diameter of the expansion ring 203 gradually decreases along the direction close to the inner cavity of the paper tube body 100, so that the inner cavity of the expansion ring 203 is in the shape of a truncated cone, the linear extrusion requirement is met, the thickness of the expansion ring 203 gradually increases along the direction close to the inner cavity of the paper tube body 100, the width of the expansion ring 203 is greater than the width of the ferrule ring 201, so that the outer wall of the expansion ring 203 can extrude the inner wall of the paper tube body 100 in the outward extrusion process after the inner part of the expansion ring 203 is subjected to the extrusion force, thereby improving the stability of the installation of the ferrule mechanism 200 at the port of the paper tube body 100. The outer wall of the expansion ring 203 is spaced apart and provided with a plurality of linear grooves 204. One end of the linear groove 204 close to the inner cavity of the paper tube body 100 is connected with the end face of the expansion ring 203. The length of the linear groove 204 is less than the width of the expansion ring 203. The plurality of linear grooves 204 are provided, so that the expansion ring 203 has a plurality of notches. When the inner wall of the expansion ring 203 is subjected to the outward extrusion force, the end of the expansion ring 203 close to the paper tube body 100 can expand outward, so that the outer wall of the expansion ring 203 is in contact with and extruded by the inner wall of the paper tube body 100. In cooperation with the limiting action of the inner wall of the ferrule ring 201, the inner cavity width of the annular positioning groove 206 between the ferrule ring 201 and the expansion ring 203 is reduced, the annular clamping groove 101 at the port position of the paper tube body 100 is clamped, and the stability of the installation of the ferrule mechanism 200 on the paper tube body 100 is improved.

[0024] Further, the inner wall of the expansion ring 203 is provided with an internal thread groove 205, the positioning block 202 is used to extrude the inner cavity of the positioning block 202, the outer wall of the positioning block 202 is disc-shaped, and the positioning block 202 is fixedly arranged on the inner side of the expansion ring 203, the outer wall of the positioning block 202 is provided with an external thread groove 207 matched with the internal thread groove 205, the positioning block 202 is threadedly connected with the internal thread groove 205 of the inner wall of the expansion ring 203 through the external thread groove 207, and the positioning block 202 and the expansion ring 203 are threadedly matched through the external thread groove 207 and the internal thread groove 205, so that the positioning block 202 can be moved to the direction of the inner cavity of the paper tube body 100 by rotating, and since the diameter of the positioning block 202 is unchanged and the inner diameter of the expansion ring 203 is gradually reduced, the end of the expansion ring 203 can be driven to elastically deform outwardly during the movement of the positioning block 202, so that the clamping force of the expansion ring 203 on the port position of the paper tube body 100 can be adjusted, the iron head mechanism 200 can be stably installed at the port position of the paper tube body 100, the positioning block 202 can be rotated in the opposite direction to exit from the expansion ring 203, the expansion ring 203 loses the extrusion force and automatically recovers, the extrusion of the iron head mechanism 200 on the port position of the paper tube body 100 is released, the iron head mechanism 200 can be conveniently disassembled at the port position of the paper tube body 100, and the iron head mechanism 200 can be conveniently recycled.

[0025] In the preferred embodiment, the middle part of the positioning block 202 is provided with a polygonal through hole 208, and the inner wall of the polygonal through hole 208 is polygonal. By providing the polygonal through hole 208 in the middle part of the positioning block 202, the user can drive the positioning block 202 to rotate in the expansion ring 203 by using a wrench or other auxiliary tools, so that the operation of rotating the positioning block 202 in the expansion ring 203 is more convenient and labor-saving, which helps to improve the convenience and efficiency of disassembling and assembling the iron head mechanism 200 at the port position of the paper tube body 100, and better meets the requirement of convenient use.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some technical features, and any modification, equivalent replacement or improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A paper tube having a ferrule, comprising a paper tube body (100), a ferrule mechanism (200) is installed at the port position of the paper tube body (100), characterized in that, The iron head mechanism (200) comprises: An iron head ring (201) is provided with an expansion ring (203) fixedly arranged, an inner diameter of the expansion ring (203) gradually decreases along a direction close to an inner cavity of a paper tube body (100), and a plurality of straight slits (204) are arranged at an outer wall of the expansion ring (203) at intervals; A positioning block (202) is disc-shaped at an outer wall thereof, and is fixedly arranged at an inner side of the expansion ring (203), and is used for extruding an inner cavity of the positioning block (202).

2. A paper tube having a mouth with a ferrule according to claim 1, characterized in that An annular positioning groove (206) is arranged between the iron head ring (201) and the expansion ring (203), a port of the paper tube body (100) is provided with an annular clamping groove (101), and an inner cavity of the annular positioning groove (206) is movably connected with an outer wall of the annular clamping groove (101).

3. A paper tube having a mouth with a ferrule according to claim 2, characterised in that, A thickness of the expansion ring (203) gradually increases along a direction close to the inner cavity of the paper tube body (100), and a width of the expansion ring (203) is greater than a width of the iron head ring (201).

4. A paper tube having a mouth with a ferrule according to claim 3, characterized in that An inner thread groove (205) is arranged at an inner wall of the expansion ring (203), an outer thread groove (207) matched with the inner thread groove (205) is arranged at an outer wall of the positioning block (202), and the positioning block (202) is threadedly connected with the inner thread groove (205) of the inner wall of the expansion ring (203) through the outer thread groove (207).

5. A paper tube having a mouth with a ferrule according to claim 4, characterised in that, A polygonal through hole (208) is arranged at a middle portion of the positioning block (202), and an inner wall of the polygonal through hole (208) is polygonal.

6. A paper tube having a mouth with a ferrule according to claim 5, characterised in that, An end of the straight slit (204) close to the inner cavity of the paper tube body (100) is connected with an end face of the expansion ring (203), and a length of the straight slit (204) is less than the width of the expansion ring (203).

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