Telescopic chopsticks with in-place feedback function
By adopting the in-place feedback mechanism and tight fit section design in telescopic chopsticks, the chopstick thickness problem caused by the limit structure is solved, and a thinner design and higher usage stability are achieved, meeting portable and environmentally friendly needs.
Patent Information
- Application Number
- CN202420581154.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-25
AI Technical Summary
Due to the limitation structure of the existing telescopic chopsticks, the upper structure has to be thicker, which violates the portability and environmental protection needs of disposable chopsticks.
Adopt the in-place feedback mechanism that does not rely on the limit structure, through the tight matching section design of the plastic sleeve and wooden or bamboo chopstick body, the longitudinal fixation of the chopstick body is achieved under the elastic action of the in-place feedback convex and grooves to avoid the chopstick body. Take it out and connect and tighten the connection and tight fixation through elastic deformation of plastic and bamboo and wood materials.
The finer design of chopsticks is achieved to meet portability and environmental protection needs. At the same time, the stability of use and connection strength are improved through an obvious force feedback mechanism, reducing the possibility of chopstick retraction.
Smart Images
Figure CN222217615U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chopsticks, and specifically relates to disposable chopsticks, and in particular to disposable chopsticks used for storing bucket instant noodles or similar application scenarios where conventional disposable chopsticks cannot be placed in the storage space. Background Art
[0002] Portability and environmental protection (using as little material as possible to reduce resource waste) are two important requirements for disposable chopsticks, so disposable chopsticks are made thinner and shorter than ordinary household chopsticks. However, in order to be able to use it normally, the length generally needs to be about 20cm.
[0003] At present, the tableware included in the barrel of instant noodles is a fork. For people who are used to using chopsticks, eating noodles with a fork is not a good experience. However, the diameter of the barrel of instant noodles is generally only 11-13cm, which cannot accommodate disposable chopsticks of about 20cm. Making chopsticks into two-section splicing structure or two-section telescopic structure is a feasible solution.
[0004] The two-stage telescopic chopsticks include an upper and lower structure, wherein the upper structure is hollow, and the lower structure is inserted into the cavity of the upper structure. In the storage state, the lower structure, except for the exposed tip, is retracted and hidden in one structure. When it is needed, the exposed tip is held to pull the lower structure outward, so that most of it hidden in the upper structure extends outward, leaving a small part to maintain the connection with the upper structure. In order to prevent the lower structure from escaping from the upper structure during the pulling process, a limiting structure is generally provided in the prior art. For example, a straw sleeve bamboo telescopic chopstick disclosed in the Chinese utility model patent with publication number CN216569450U includes a straw sleeve, bamboo chopsticks, and a limiting clamping column structure, wherein the bamboo chopsticks are arranged inside the straw sleeve; the limiting clamping column structure is fixedly installed at the bottom of the straw sleeve, and the limiting clamping column structure includes a conical hollow limiting column, wherein a conical block is arranged inside the conical hollow limiting column, and the bottom of the conical block is fixedly connected to the top of the bamboo chopsticks. For another example, a Chinese utility model patent with publication number CN207733990U discloses a retractable chopstick, which includes an upper chopstick component and a lower chopstick component that can be connected to the upper chopstick component as an integral whole, the upper chopstick component has a hollow structure inside to form a accommodating cavity, a latching point is arranged on the inner wall of the lower end of the accommodating cavity, an axial slide groove is recessed on the upper outer surface of the lower chopstick component, a latching groove that is perpendicular to and communicates with the slide groove is formed at the upper end of the slide groove, the upper part of the lower chopstick component is received in the accommodating cavity of the upper chopstick component, and when the latching point moves along the slide groove to the latching groove, the latching point is clamped by the two walls of the latching groove.
[0005] The disadvantage of the above-mentioned prior art solution is that the setting of the limiting structure causes the upper structure to be thicker, which is contrary to two important requirements of disposable chopsticks. Summary of the invention
[0006] The purpose of the utility model is to solve the problem that the existing telescopic chopsticks use a limiting structure to prevent the lower structure from falling out, and to propose a solution that does not rely on the limiting structure, so that the upper structure can be made thinner, thereby meeting the portability and environmental protection requirements of disposable chopsticks.
[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a telescopic chopsticks with in-position feedback, comprising an upper and lower structural body, wherein the upper structural body is a sleeve, and the lower structural body is a chopstick body, the chopstick body is telescopically assembled in the sleeve, and the lower end of the chopstick body extends out from the lower end of the sleeve, and is characterized in that the chopstick body is made of wood or bamboo material, the sleeve is thermoplastically molded by plastic material, the upper end of the chopstick body includes a chopstick body tight-fitting section that is tightly fitted with the inner wall of the lower end of the sleeve, the inner wall of the lower end of the sleeve is provided with an in-position feedback ridge, and the chopstick body tight-fitting section is provided with an in-position feedback groove that can accommodate the in-position feedback ridge.
[0008] In the above-mentioned telescopic chopsticks, in the storage state, the chopstick body is retracted and hidden in the sleeve except for the lower end that is exposed. When using, the lower end of the chopstick body that is exposed is held to pull the chopstick body downward. When the in-place feedback groove reaches the position of the in-place feedback ridge, the in-place feedback ridge enters the in-place feedback groove under the elastic action of the plastic material. The user will clearly feel the change in the pulling resistance and know that it has been pulled into place. This method is used to prevent the chopstick body from falling out of the sleeve, and the sleeve does not need a larger radial dimension to accommodate the limiting structure. On this basis, the utility model further adopts a method of tight fit between the chopstick body and the inner cavity of the sleeve to achieve longitudinal fixation between the chopstick body and the sleeve in the use state, so that the maximum diameter of the telescopic chopsticks of the utility model is only more than that of ordinary disposable chopsticks by the thickness of the sleeve wall, which is very portable and environmentally friendly.
[0009] Furthermore, the chopstick body is a single body structure made of wood or bamboo material, and the sleeve is a single body structure formed by thermoplastic molding of plastic material.
[0010] Furthermore, the radial dimension of the tight-fit section of the chopstick body is larger than the inner cavity dimension of the sleeve, and the sleeve tightens and fixes the tight-fit section of the chopstick body based on elastic deformation and elastic deformation of the tight-fit section of the chopstick body. When the chopstick body extends out of the sleeve, the sleeve and the chopstick body are connected and tightened based on the elastic deformation of the plastic material supplemented by the elastic deformation of the wood material or bamboo material. The tight-fit structure of the sleeve and the tight-fit section of the chopstick body is both a connecting structure of the sleeve and the chopstick body and a fixing structure for achieving longitudinal fixation between the two. The tightening effect of achieving longitudinal fixation between the two simultaneously strengthens the connection strength of the connection between the two in the extended state. Thus, the technical effect of achieving multiple functions with a single tubular structure is achieved.
[0011] The sleeve is made of PP material, and the ratio of the sleeve wall thickness to the outer diameter is preferably 0.08-0.12.
[0012] Furthermore, the sleeve is a round tube, and the tight-fitting section of the chopstick body is a cylindrical structure matching the inner cavity of the sleeve.
[0013] Optionally, the sleeve is a square tube, and the tight-fitting section of the chopstick body is a square column structure that matches the inner cavity of the sleeve.
[0014] Furthermore, the tail end of the sleeve is provided with a conical-shaped shrinking opening formed by thermoplasticity, and the inner diameter of the shrinking opening gradually shrinks from bottom to top. The minimum inner diameter of the shrinking opening is smaller than the diameter of the upper end of the chopstick body. The shrinking opening is formed by thermoplastic processing after the chopstick body is inserted into the sleeve from the upper end, and this structure is used to prevent the chopstick body from slipping out of the sleeve from the upper end of the sleeve.
[0015] Furthermore, the lower end of the chopstick body is a chopstick tip with a nearly conical structure that gradually shrinks from top to bottom.
[0016] Furthermore, the inner diameter of the sleeve body is greater than or equal to the diameter of the tight-fit section of the chopstick body, and the tight-fit section of the chopstick body extends from the upper end of the chopstick body to the chopstick tip exposed in the storage state.
[0017] As another option, the chopstick body tight fitting section is a section of the chopstick body located at the upper end of the chopstick body, and the diameter of the chopstick body below the chopstick body tight fitting section is smaller than the diameter of the chopstick body tight fitting section. The diameter of the sleeve is equal except for the shrinkage opening at the upper end. The advantage of this structure is that the sleeve can be made thinner.
[0018] The beneficial effects of the utility model are as follows: 1. It uses in-place feedback to remind the user to avoid the chopstick body from falling out of the sleeve during use. The sleeve does not need a larger radial dimension, which is conducive to making the telescopic chopsticks more slender as a whole, thereby meeting the portability and environmental protection requirements of disposable chopsticks. 2. The structure is simple. The entire chopstick consists of only two components, the upper sleeve and the lower chopstick body, but it fully realizes all the functions of the telescopic chopsticks. 3. Based on the elastic deformation of plastic supplemented by the elastic deformation of bamboo and wood materials, the connection and tightening fixation between the sleeve and the chopstick body are achieved through the fastening cooperation of a single tubular structure and a columnar structure. 4. The sleeve is made of a plastic material with good strength and shrinkage, and the thin-wall structure is combined with the bamboo chopstick body. The chopsticks are made more slender and suitable for disposable use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the disposable telescopic chopsticks of the utility model in use state.
[0020] Figure 2 It is a sectional view of the disposable telescopic chopsticks of the utility model in use state.
[0021] Figure 3 It is a schematic structural diagram of the disposable telescopic chopsticks of the utility model in a storage state.
[0022] Figure 4 It is a cross-sectional view of the disposable telescopic chopsticks of the utility model in a storage state.
[0023] Figure 5 It is a cross-sectional view of the casing structure.
[0024] Figure 6 It is a schematic diagram of the structure of chopsticks.
[0025] Figure 7 yes Figure 2 Enlarged schematic diagram of the structure at circle A.
[0026] Figure 8 This is another structural diagram of the tight fit section of the chopstick body DETAILED DESCRIPTION
[0027] Reference Figure 1-7 The disposable telescopic chopsticks of the utility model include an upper sleeve 1 and a lower chopstick body 2. The chopstick body 2 is assembled in the sleeve 1. The lower end of the chopstick body 2 extends out from the lower end of the sleeve. The chopstick body and the sleeve are both single-body structures. A shrinking opening 11 is provided at the upper end of the sleeve 1. The inner diameter of the shrinking opening 11 gradually shrinks from bottom to top. The upper end diameter D1 of the shrinking opening 11 is smaller than the upper end diameter D3 of the chopstick body 2. The shrinking opening is formed by a thermoplastic process after the chopstick body is inserted into the sleeve from the rear end. This structure is used to prevent the chopstick body from slipping out of the sleeve from the rear end of the sleeve.
[0028] The portion below the contraction opening 11 of the sleeve 1 is a straight tube of equal diameter. The lower end of the sleeve is provided with a contraction groove 12 contracting radially inwards, and the contraction groove 12 forms a feedback ridge on the inner wall of the sleeve.
[0029] The upper end of the chopstick body is a chopstick body tight fitting section 21, the diameter D3 of the chopstick body tight fitting section 21 is slightly larger than the inner diameter D2 of the lower end of the sleeve, and the chopstick body tight fitting section 21 is tightly fitted with the lower end of the sleeve.
[0030] The diameter of the chopstick body below the chopstick body tight-fitting section 21 is smaller than the diameter D3 of the chopstick body tight-fitting section 21 .
[0031] The chopstick body tight-fitting section 21 is provided with a radially inwardly contracted in-position feedback groove 23 , and the contraction groove 12 of the in-position feedback groove 23 matches the contraction groove 12 formed on the inner wall of the sleeve.
[0032] The cross-section shape of any part of the sleeve and the chopstick body is circular.
[0033] The lower end of the chopstick body is a chopstick tip 23 of a cone-shaped structure that gradually contracts from top to bottom.
[0034] Reference Figure 8 The inner diameter of the sleeve body is greater than or equal to the diameter of the chopstick body tight fit section, and the chopstick body tight fit section 21 extends from the upper end of the chopstick body to the chopstick tip exposed in the storage state.
[0035] The utility model telescopic chopsticks show their unique design advantages during use. When stretched to the position where the in-place feedback groove and the in-place feedback ridge cooperate, it will give obvious force feedback to prompt the user that the chopsticks have been stretched into place. This feedback mechanism not only makes the assembly process simple and intuitive, but also effectively avoids structural loosening or deformation caused by over-stretching or under-stretching. After the stretching is completed, the matching structure between the in-place feedback groove and the in-place feedback ridge also plays an auxiliary role in fixing the chopstick body in the sleeve. It is not only beneficial to the stability of the chopsticks during use, but also greatly reduces the possibility of the chopstick body shrinking back into the tube due to external force.
Claims
1. A telescopic chopstick with in-position feedback, comprising an upper and lower structure, wherein the upper structure is a sleeve, and the lower structure is a chopstick body, the chopstick body is telescopically assembled in the sleeve, and the lower end of the chopstick body extends from the lower end of the sleeve, characterized in that: The chopstick body is made of wood or bamboo material, the sleeve is thermoformed by plastic material, the upper end of the chopstick body includes a chopstick body tight-fitting section that is tightly fitted with the inner wall of the lower end of the sleeve, the inner wall of the lower end of the sleeve is provided with an in-place feedback ridge, and the chopstick body tight-fitting section is provided with an in-place feedback groove that can accommodate the in-place feedback ridge.
2. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The chopstick body is a single body structure made of wood or bamboo material, and the sleeve is a single body structure formed by thermoplastic molding of plastic material.
3. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The radial dimension of the chopstick body tight fitting section is larger than the inner cavity dimension of the sleeve, and the sleeve tightens and fixes the chopstick body tight fitting section based on elastic deformation and elastic deformation of the chopstick body tight fitting section.
4. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The sleeve is made of PP material, and the ratio of the sleeve wall thickness to the outer diameter is preferably 0.08-0.
12.
5. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The sleeve is a round tube, and the tight-fitting section of the chopstick body is a cylindrical structure matching the inner cavity of the sleeve.
6. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The sleeve is a square tube, and the tight-fitting section of the chopstick body is a square column structure matching the inner cavity of the sleeve.
7. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The tail end of the sleeve is provided with a shrinking opening of a nearly conical structure formed based on thermoplasticity, the inner diameter of the shrinking opening gradually shrinks from bottom to top, and the minimum inner diameter of the shrinking opening is smaller than the diameter of the upper end of the chopstick body.
8. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The lower end of the chopstick body is a chopstick tip with an approximately cone-shaped structure which gradually contracts from top to bottom.
9. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The inner diameter of the sleeve body is greater than or equal to the diameter of the chopstick body tight fitting section, and the chopstick body tight fitting section extends from the upper end of the chopstick body to the chopstick tip exposed in the storage state.
10. The telescopic chopsticks with position feedback according to claim 1, characterized in that: The chopstick body tight fitting section is a section of the chopstick body located at the upper end of the chopstick body, the diameter of the chopstick body below the chopstick body tight fitting section is smaller than the diameter of the chopstick body tight fitting section, and the remaining diameters of the sleeve are equal except for the shrinkage opening at the upper end.