A multi-specification adaptable plastic core tube end fitting assembly
By designing the plastic core tube end fitting assembly with multiple specifications and adopting a detachable fixed structure and limiting groove body, the problem of difficult to adapt multiple times between the core tubes and bases in the prior art is solved, and the effects of cost reduction, replacement capacity improvement and fixed strength enhancement are achieved.
Patent Information
- Application Number
- CN202421328196.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-12
AI Technical Summary
In the prior art, it is difficult to adapt multiple times after being formed by hot melt, resulting in high production costs and difficult to disassemble and replace after forming, resulting in waste of resources.
A multi-specified adaptable plastic core tube end fitting assembly is designed, adopting a detachable fixed structure and multiple limiting grooves. By fixing components such as rotating discs, fixed telescopic rods and elastic limiting parts, the multi-specified adaptability and removability of the core tube and the base are achieved.
It realizes firm fixation and multi-specification adaptation between the core tube and the base, reduces production costs, improves the replacement capacity of the core tube, and increases the fixing strength through elastic limit parts, avoiding waste of resources.
Smart Images
Figure CN222699606U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic core tube manufacturing, in particular to a multi-specification adaptive plastic core tube end matching component. Background Art
[0002] The plastic core tube is a new type of material, a tubular part made of plastic, with good sealing and waterproof properties and stable chemical properties.
[0003] During the processing of the core tube, plastic bases need to be installed on both sides of the core tube to facilitate the force and width limitation of the core tube when rolling film products. Therefore, the core tube bases need to be installed at both ends of the core tube by hot melting. The core tube and the core tube base are integrated by utilizing the characteristics of plastic, thereby producing an integrated core tube with bases at both ends.
[0004] Although the installation of the base by hot melting is firm, in actual production needs, the base of the same specification may have core tubes of multiple specifications that need to be adapted, and the base fixed by hot melting cannot be separated from the core tube and can only be paired by hot melting again, which greatly increases the production cost. The integrated core tube after molding cannot be disassembled when replacement is needed and can only be replaced as a whole, resulting in a waste of resources. Therefore, the core tube and base in the prior art have the problem of being difficult to adapt to multiple specifications after integrated hot melting molding. Utility Model Content
[0005] The purpose of the utility model is to realize the fixation and limiting between the core tube and the base by setting a detachable connection, and there are multiple adaptable grooves on the base, so as to achieve the effect of being able to be disassembled and adapting to various specifications of different core tubes of root canals.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-specification adaptive plastic core tube end fitting assembly, comprising a core tube body and an end body, a fixed structure is arranged on one side of the end body, the fixed structure comprises a fixed rotating disk and a fixed telescopic rod slidably arranged on the fixed rotating disk, a fixing piece is fixedly arranged on the surface of the end body, a fixing opening is opened on the end body, a fixed fitting piece passing through the fixed opening is fixedly arranged on the bottom surface of the core tube body, and the fixed telescopic rod passes through the fixed fitting piece.
[0007] Preferably, a rotating matching piece matching the fixing piece is fixedly provided on the fixed telescopic rod, and the rotating matching piece includes a rotating base and a rotating handle fixedly connected to the rotating base, and the rotating base is fixedly connected to the surface of the fixed telescopic rod.
[0008] Preferably, a fixed limiting groove is provided on the rotating handle, and the fixed limiting groove and the fixing member match in shape.
[0009] Preferably, an elastic limiting member is disposed around the outer side of the surface of the fixing member, the elastic limiting member has elastic deformation performance, and the cross-sectional area of the upper surface of the fixing member is larger than the cross-sectional area of the fixing limiting groove.
[0010] Preferably, one side of the end body is provided with a plurality of placement engagement grooves arranged in an array, and the fixing openings are all provided at the bottom of the groove body of the placement engagement grooves.
[0011] Preferably, a fixed fitting opening is provided on the fixed fitting piece, and the cross-sectional area of the fixed fitting opening is equal to the cross-sectional area of the end portion of the fixed telescopic rod.
[0012] The beneficial effects of the utility model are:
[0013] 1. A detachable fixing structure is provided to firmly fix the core tube and the base, thereby ensuring a fixed relationship between the core tube and the base.
[0014] 2. Multiple limiting slots are provided so that one base can be adapted to core tubes of various specifications, thus ensuring the ability to replace the core tubes.
[0015] 3. The elastic limiter is provided to further enhance the fixing firmness of the fixing structure, so that the fixing strength of the detachable fixing structure is not lower than that of the thermoplastic fixing, thereby achieving the effect of strengthening the fixing ability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a multi-specification plastic core tube end fitting assembly of the utility model. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the structure of a multi-specification plastic core tube end fitting assembly of the utility model. Figure 2 ;
[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the structure of a multi-specification plastic core tube end fitting assembly of the utility model. Figure 3 ;
[0020] In the figure:
[0021] 1. Core tube body; 11. Fixed fitting; 12. Fixed fitting opening;
[0022] 2. End body; 21. Fixed structure; 211. Fixed rotating disk; 212. Fixed telescopic rod; 213. Rotating matching piece; 214. Rotating base; 215. Rotating handle; 216. Fixed limiting groove; 22. Fixed piece; 221. Elastic limiting piece; 23. Fixed mouth; 24. Placement engagement groove. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0024] refer to Figure 1 The main body is a core tube body 1 and an end body 2. The core tube body 1 will be installed on the end body 2 to achieve an integrated effect. A fixed structure 21 is fixedly arranged on one side of the end body 2. The fixed structure 21 can fix the core tube body 1 and the end body 2.
[0025] refer to Figure 2-4 The fixed structure 21 includes a fixed rotating disk 211 and a fixed telescopic rod 212 slidably arranged on the fixed rotating disk 211. The fixed telescopic rod 212 can slide along the groove body opened on the fixed rotating disk 211, and the fixed rotating disk 211 can rotate to realize the switching between fixed and non-fixed modes. A rotating matching piece 213 matching the fixed piece 22 is fixedly arranged on the fixed telescopic rod 212. The rotating matching piece 213 includes a rotating base 214 and a rotating handle 215 fixedly connected to the rotating base 214. By applying a force to the rotating handle 215, the fixed telescopic rod 212 can be driven to rotate. The rotating base 214 is fixedly connected to the surface of the fixed telescopic rod 212, thereby realizing the operability of the fixed telescopic rod 212.
[0026] refer to Figure 2-4 A fixing opening 23 is provided on the end body 2, and a plurality of engagement grooves 24 are arranged in an array on one side of the end body 2. The fixing openings 23 are all provided at the bottom of the groove body for placing the engagement grooves 24. Engaging grooves 24 of different sizes can be adapted to different core tube bodies 1, thereby achieving a multi-specification adaptation effect. Core tube bodies 1 of different specifications can be fixed corresponding to different fixing openings 23. A fixing fitting 11 passing through the fixing opening 23 is fixedly provided on the bottom surface of the core tube body 1. A fixing fitting opening 12 is provided on the fixing fitting 11. The cross-sectional area of the fixing fitting opening 12 is equal to the cross-sectional area of the end of the fixed telescopic rod 212. When the fixed telescopic rod 212 is driven to move, the fixing fitting 11 passes through the corresponding fixing opening 23, and the fixed telescopic rod 212 will be inserted into the fixing fitting opening 12 to achieve a fixing effect.
[0027] refer to Figure 2-4 A fixing part 22 is fixedly arranged on the surface of the end body 2. The fixing part 22 is on the back side of the end body 2, next to the fixing port 23. A fixing limit groove 216 is opened on the rotating handle 215. The shape of the fixing limit groove 216 and the fixing part 22 match. When the rotating handle 215 is rotated to a certain angle, the fixing limit groove 216 and the fixing part 22 can match and engage. An elastic limit part 221 is wound around the outer side of the surface of the fixing part 22. The elastic limit part 221 has elastic deformation performance. The cross-sectional area of the upper surface of the fixing part 22 is larger than the cross-sectional area of the fixing limit groove 216. When the top end of the fixing part 22 is inserted into the fixing limit groove 216, the elastic limit part 221 will elastically contract and resist the inner wall of the fixing limit groove 216, thereby increasing the fixing pressing force and improving the fixing strength.
[0028] The working principle of this mechanism is as follows: when the core tube body 1 and the end body 2 are fixed, the core tube body 1 and the placement engagement groove 24 are engaged and snapped together according to the specifications, so that the fixed fitting 11 at the bottom of the core tube body 1 extends out of the fixed opening 23 and reaches the back of the end body 2, and at this time, the fixed rotating disk 211 is rotated so that the four fixed telescopic rods 212 are all aligned with the position of the extended fixed fitting 11, and the fixed telescopic rod 212 is pulled out by rotating the handle 215, so that the front end of the fixed telescopic rod 212 passes through the fixed matching opening 12, and then the rotating handle 215 is rotated so that the fixed limiting groove 216 on the rotating handle 215 and the top of the fixing piece 22 are engaged and fixed, thereby completing the fixing operation. When replacement is required, the core tube body 1 can be disassembled and replaced by contacting the connection relationship between the fixing piece 22 and the fixed limiting groove 216.
[0029] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific implementations. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.
Claims
1. A multi-specification compatible plastic core tube end fitting assembly, comprising a core tube body (1) and an end body (2), characterized in that: A fixed structure (21) is provided on one side of the end head body (2), the fixed structure (21) comprising a fixed rotating disk (211) and a fixed telescopic rod (212) slidably arranged on the fixed rotating disk (211); a fixing piece (22) is fixedly arranged on the surface of the end head body (2); a fixing opening (23) is provided on the end head body (2); a fixed fitting piece (11) passing through the fixing opening (23) is fixedly arranged on the bottom surface of the core tube body (1); and the fixed telescopic rod (212) passes through the fixed fitting piece (11).
2. The multi-specification adaptable plastic core tube end fitting assembly according to claim 1, characterized in that: A rotating matching piece (213) matching the fixed piece (22) is fixedly arranged on the fixed telescopic rod (212); the rotating matching piece (213) comprises a rotating base (214) and a rotating handle (215) fixedly connected to the rotating base (214); the rotating base (214) and the surface of the fixed telescopic rod (212) are fixedly connected.
3. The multi-specification adaptable plastic core tube end fitting assembly according to claim 2, characterized in that: The rotating handle (215) is provided with a fixed limiting groove (216), and the shapes of the fixed limiting groove (216) and the fixing member (22) match each other.
4. The multi-specification adaptable plastic core tube end fitting assembly according to claim 3, characterized in that: An elastic limiting member (221) is disposed around the outer side of the surface of the fixing member (22), the elastic limiting member (221) having elastic deformation performance, and the cross-sectional area of the upper surface of the fixing member (22) is larger than the cross-sectional area of the fixing limiting groove (216).
5. The multi-specification adaptable plastic core tube end fitting assembly according to claim 1, characterized in that: One side of the end head body (2) is provided with a plurality of placement engagement grooves (24) arranged in an array, and the fixing openings (23) are all provided at the bottom of the groove body of the placement engagement grooves (24).
6. The multi-specification adaptable plastic core tube end fitting assembly according to claim 1, characterized in that: The fixed fitting piece (11) is provided with a fixed fitting opening (12), and the cross-sectional area of the fixed fitting opening (12) is equal to the cross-sectional area of the end of the fixed telescopic rod (212).