Disc-shaped sleeve

Abstract

The utility model discloses a disc-shaped sleeve which comprises a containing disc, a positioning ferrule is fixedly arranged on the center side of the containing disc, a connecting piece is installed on the inner side of the positioning ferrule, two positioning holes are symmetrically formed in the connecting piece, and a plurality of sleeve bodies are arranged on the containing disc. The outer sides of the multiple sleeve bodies are provided with connecting belts, the outer sides of the multiple sleeve bodies are bonded with the connecting belts correspondingly, the multiple sleeve bodies are wound around the positioning ferrule through the connecting belts, one ends of the multiple sleeve bodies are attached to one side of the containing disc, inner holes are formed in the two ends of each sleeve body correspondingly, and the outer sides of the multiple sleeve bodies are bonded with the connecting belts correspondingly. Two inner holes are formed in the casing pipe body, a blocking block is formed between the two inner holes, an anti-skid ferrule is arranged in each inner hole, an anti-oxidation layer is arranged on the outer side of each casing pipe body, and the anti-skid casing pipe has the advantages of being reasonable in structure, convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of spring processing accessories, in particular to a disc-shaped sleeve. Background Art

[0002] The current double M-type butterfly spring is wound from a spring steel, and there is always a docking interface. The interfaces at the two ends of the double M-type butterfly spring are connected together by ordinary simple welding. The welding interface is often misaligned, resulting in a small welding section. When the double M-type butterfly spring is unevenly stressed on the left and right, the displacement deformation on both sides is different, resulting in shear force at the welding interface, causing the double M-type butterfly spring to break. In addition, the double M-type butterfly spring is an object that is repeatedly stressed and continuously deformed. Simple welding or welding interface misalignment results in a large number of double M-type butterfly springs having a short life span and needing to be replaced frequently. The maintenance cost is increased invisibly, and social resources are also wasted. At the same time, the traditional processing method requires placing the sleeves one by one between the two end interfaces of the double M-type butterfly spring, and using a night punch to stamp and deform the sleeves, making the sleeves inconvenient to use. This not only reduces work efficiency, but also poses a threat to the safety of users. In response to the above problems, a solution is proposed below. Utility Model Content

[0003] The utility model aims to provide a disc-shaped sleeve, which has the advantages of convenient use and high practicality.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A disc-shaped sleeve comprises a placement plate, a positioning ring is fixedly provided on the central side of the placement plate, a connecting piece is installed on the inner side of the positioning ring, two positioning holes are symmetrically provided on the connecting piece, a plurality of sleeve bodies are provided on the placement plate, connecting belts are provided on the outer sides of a plurality of the sleeve bodies, and the outer sides of a plurality of the sleeve bodies are respectively bonded to the connecting belts and are wound around the positioning ring through the connecting belts, one end of a plurality of the sleeve bodies is fitted with one side of the placement plate, an inner hole is provided at both ends of each of the sleeve bodies, a barrier block is formed between the two inner holes, an anti-slip ring is provided in each of the inner holes, and an anti-oxidation layer is provided on the outer side of each of the sleeve bodies.

[0006] Preferably, both ends of each sleeve body are arc-shaped.

[0007] Preferably, the anti-oxidation layer is an epoxy anti-rust coating.

[0008] Preferably, the connecting tape is a hot melt adhesive tape.

[0009] The beneficial effects of the utility model are:

[0010] 1. As the placement disc rotates, the sleeves wound on the placement disc can be transported one by one, and when the hydraulic punch press punches the sleeve, the connecting belt connecting the two adjacent sleeve bodies can be thermally broken, so that the sleeve can be connected to the double M-shaped butterfly spring. Compared with the traditional working method of transporting and punching a single sleeve, the disc-shaped sleeve is more convenient to use, so it can effectively improve work efficiency.

[0011] 2. When the double M-type butterfly spring to be processed is placed on the hydraulic punch, the sleeve body can be transported between the two interfaces of the double M-type butterfly spring, so that the two interfaces can enter the inner holes at both ends of the sleeve body respectively. Then the sleeve body can be stamped and deformed by the hydraulic punch, so as to firmly connect the two ends of the interface together. Compared with the traditional welding method, the sleeve connection is changed to avoid the welding dislocation phenomenon at the welding interface caused by welding. At the same time, the sleeve connection is adopted. Due to the different displacement deformations on both sides, the welding point at the welding interface is subjected to shear force, which is changed to the length of the hole on the rigid sleeve. The shear force is dispersed, which effectively avoids the double M-type butterfly spring from breaking and scrapping at the welding point, and improves the service life of the double M-type butterfly spring. In addition, since the double M-type butterfly spring is commonly used in sofas and spring mattresses, and since sofas and spring mattresses are flammable items, fires caused by welding can be avoided, so it is safer to use sleeve connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment;

[0013] Figure 2 It is a partial structural schematic diagram of an embodiment;

[0014] Figure 3 4 is a cross-sectional view of the sleeve body in the embodiment.

[0015] Figure numerals: 1. placement plate; 2. positioning ring; 3. connecting piece; 4. positioning hole; 5. sleeve body; 6. connecting belt; 7. inner hole; 8. barrier block; 9. anti-slip ring; 10. anti-oxidation layer. DETAILED DESCRIPTION

[0016] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] like Figures 1 to 3 As shown, a disc-shaped sleeve comprises a placing disc 1, a positioning ring 2 is fixedly provided on the central side of the placing disc 1, a connecting piece 3 is installed on the inner side of the positioning ring 2, and two positioning holes 4 are symmetrically opened on the connecting piece 3. The placing disc 1 can be installed in the feeding part of the hydraulic punch through the connecting piece 3 and the two positioning holes 4, so as to facilitate the transportation of the positioning ring 2. The hydraulic punch is a prior art, so the structure and working method are not described in detail.

[0018] A plurality of sleeve bodies 5 are arranged on the placement disk 1, and connecting belts 6 are arranged on the outer sides of the plurality of sleeve bodies 5, and the outer sides of the plurality of sleeve bodies 5 are respectively bonded to the connecting belts 6, and are wound on the positioning ring 2 through the connecting belts 6, and one end of the plurality of sleeve bodies 5 is in contact with one side of the placement disk 1, and the connecting belt 6 is a hot-melt adhesive tape. With the rotation of the placement disk 1, the sleeves wound on the placement disk 1 can be conveyed one by one, and when the hydraulic punch press punches the sleeve, the connecting belt 6 connected between two adjacent sleeve bodies 5 can be broken by heat, so that the sleeve can be connected to the double M-shaped butterfly spring. Compared with the traditional working method of conveying and punching a single sleeve, the disc-shaped sleeve is more convenient to use, and thus can effectively improve the work efficiency.

[0019] Each sleeve body 5 has an inner hole 7 at both ends, and a barrier block 8 is formed between the two inner holes 7. When the double M-shaped butterfly spring to be processed is placed on the hydraulic punch, the sleeve body 5 can be transported between the two interfaces of the double M-shaped butterfly spring, so that the two interfaces can enter the inner holes 7 at both ends of the sleeve body 5 respectively. Then, the sleeve body 5 can be stamped and deformed by the hydraulic punch, so as to firmly connect the two ends of the interface together. Compared with the traditional welding method, the sleeve connection is changed to avoid the welding caused by welding. The welding misalignment phenomenon at the joint interface is produced, and the sleeve connection is adopted at the same time. Due to the different displacement deformations on both sides, the shear force is changed from the welding point at the welding interface to the shear force being applied to the length of the hole on the rigid sleeve, and the stress points of the shear force are dispersed, which effectively avoids the double M-type butterfly spring from breaking and being scrapped at the welding point, and improves the service life of the double M-type butterfly spring. In addition, since the double M-type butterfly spring is commonly used in sofas and spring mattresses, and since sofas and spring mattresses are flammable items, fires caused by welding can be avoided, so it is safer to use sleeve connection.

[0020] Each inner hole 7 is provided with an anti-slip collar 9, and each sleeve body 5 is provided with an anti-oxidation layer 10 on its outer side. When the sleeve body 5 is connected to the double M-shaped butterfly spring, the anti-slip collar 9 can also prevent the two end interfaces from loosening and falling off, so as to ensure the connection firmness of the double M-shaped butterfly spring. The anti-oxidation layer 10 can effectively prevent the sleeve body 5 from oxidation and rusting. The anti-oxidation layer 10 is an epoxy anti-rust coating, thereby increasing the service life of the sleeve body 5. Since both ends of each sleeve body 5 are arc-shaped, the sleeve body 5 can be prevented from cutting the end interface of the double M-shaped butterfly spring during stamping deformation.

[0021] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disc-shaped sleeve, characterized in that: The invention comprises a placement plate (1), wherein a positioning ring (2) is fixedly arranged on the central side of the placement plate (1), a connecting plate (3) is installed on the inner side of the positioning ring (2), and two positioning holes (4) are symmetrically provided on the connecting plate (3); a plurality of sleeve bodies (5) are arranged on the placement plate (1), and a connecting belt (6) is arranged on the outer side of the plurality of sleeve bodies (5), and the outer sides of the plurality of sleeve bodies (5) are respectively bonded to the connecting belt (6) and are wound on the positioning ring (2) through the connecting belt (6); one end of the plurality of sleeve bodies (5) is in contact with one side of the placement plate (1), and an inner hole (7) is respectively opened at both ends of each sleeve body (5), and a barrier block (8) is formed between the two inner holes (7); an anti-slip ring (9) is respectively arranged in each inner hole (7), and an anti-oxidation layer (10) is respectively arranged on the outer side of each sleeve body (5).

2. A disc-shaped sleeve according to claim 1, characterized in that: Both ends of each sleeve body (5) are arc-shaped.

3. A disc-shaped sleeve according to claim 2, characterized in that: The anti-oxidation layer (10) is an epoxy anti-rust coating.

4. A disc-shaped sleeve according to claim 3, characterized in that: The connecting tape (6) is a hot-melt adhesive tape.

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