Environment-friendly anti-theft nut with degradable built-in sleeve
By using a biodegradable built-in sleeve and an arc-shaped limiting groove design in the anti-theft nut, the environmental pollution and inconvenience of operation of traditional anti-theft nuts are solved, achieving an environmentally friendly and convenient anti-theft effect.
Patent Information
- Application Number
- CN202520285369.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Traditional ball-type anti-theft nuts have non-biodegradable inner sleeves, causing environmental pollution and are inconvenient to install.
It adopts a biodegradable inner sleeve, and is designed with arc-shaped limiting grooves and clearance grooves to secure the anti-theft beads. Combined with the degradation groove, it accelerates decomposition and simplifies the operation process.
It effectively reduces environmental pollution, improves installation convenience and anti-theft performance, reduces production costs, and meets environmental protection requirements.
Smart Images
Figure CN223635097U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fastener technical field, specifically, relate to a kind of environment-friendly theftproof nut with degradable built-in sleeve. BACKGROUND
[0002] Early nut structure is simple, lack effective theftproof measure, easily be easily disassembled by wrongdoer, lead to the security of relevant facilities cannot be guaranteed. With the development of technology, there is ball type theftproof nut, which realizes theftproof function by setting theftproof ball and built-in sleeve in nut interior. The built-in sleeve of conventional ball type theftproof nut is mostly made of non-degradable material. In the process of nut installation, built-in sleeve is ejected by screw rod, and then becomes waste article. Since these built-in sleeves are non-degradable, they exist in natural environment for a long time, causing long-term pollution to soil, water source and the like, which is contrary to the increasingly strict environmental protection requirements. Especially in some environmentally sensitive areas, such as nature reserves, water source areas and the like, the use of such non-degradable built-in sleeves is greatly limited.
[0003] In addition, conventional theftproof nut also has the problem of inconvenient operation in the process of installation and use. The complex theftproof structure increases the difficulty of nut assembly, and requires professional tools and high operation skill, which not only consumes time and labor cost, but also is easy to make mistakes in the process of installation, affecting the normal use and theftproof performance of nut. SUMMARY
[0004] The utility model provides a kind of environment-friendly theftproof nut with degradable built-in sleeve, solve the problem of big environmental impact of ball theftproof nut theftproof sleeve in relevant technology.
[0005] The technical scheme of the utility model is as follows:
[0006] A kind of environment-friendly theftproof nut with degradable built-in sleeve, comprising:
[0007] Nut, the nut has threaded hole, the inner wall of threaded hole has limit slot, the limit slot is arc-shaped;
[0008] Theftproof ball, the theftproof ball is arranged in the limit slot;
[0009] Degradable built-in sleeve, the degradable built-in sleeve is arranged in the threaded hole, the theftproof ball and the outer wall of degradable built-in sleeve abut.
[0010] As a further technical scheme, the degradable built-in sleeve has a let-out slot, which is located on one side of the limit slot and is used to accommodate the theftproof ball.
[0011] As a further technical scheme, the let-out slot is semicircular, and the radius of the let-out slot is smaller than the radius of the theftproof ball.
[0012] As a further technical solution, the let go slot and the limiting slot are arranged in a plurality of circles, and the number of the let go slots is the same as that of the limiting slots and the positions are one-to-one corresponding.
[0013] As a further technical solution, the nut has a convex ring, and the degradable built-in sleeve further has an abutting portion, and the convex ring is arranged in abutment with the abutting portion.
[0014] As a further technical solution, the degradable built-in sleeve further has a degradation slot, and the degradation slot is located at the bottom of the degradable built-in sleeve and at one side of the let go slot.
[0015] As a further technical solution, the anti-theft bead is used to abut with the thread of the screw rod.
[0016] As a further technical solution, the degradable built-in sleeve has a cavity, and the degradation slot leads to the cavity.
[0017] The working principle and beneficial effects of the utility model are as follows:
[0018] In the utility model, the arc-shaped limiting slot is arranged on the inner wall of the threaded hole to place the anti-theft bead, when installing, the degradable built-in sleeve is pushed out by the screw rod, the anti-theft bead is effective, and rolls in the arc-shaped limiting slot, when the screw rod is retreated from the thread, the anti-theft bead rolls in the arc-shaped limiting slot, enters the small slot end of the arc-shaped limiting slot, increases the resistance, and realizes anti-theft.
[0019] Under the background of increasingly strict environmental protection requirements, the traditional ball type anti-theft nut adopts the built-in sleeve made of non-degradable material, after the built-in sleeve is pushed out, it will cause long-term pollution to the environment. The degradable built-in sleeve is adopted, after completing the use mission, the degradable built-in sleeve will gradually decompose in the natural environment, effectively reducing the negative impact on the environment. DRAWINGS
[0020] The above characteristics, technical features, advantages and implementation modes of the utility model will be further described in the following in a clear and understandable manner, combined with the preferred embodiments and the drawings.
[0021] Figure 1 It is a structural schematic diagram of the utility model;
[0022] Figure 2 It is a nut structure schematic diagram of the utility model;
[0023] Figure 3 It is Figure 1 It is a sectional structure schematic diagram of C-C;
[0024] Figure 4 It is a degradable built-in sleeve structure schematic diagram of the utility model;
[0025] In the figure: nut-1, threaded hole-101, limiting groove-102, convex ring-103, anti-theft bead-2, degradable built-in sleeve-3, give-way groove-301, abutting portion-302, degradation groove-303. DETAILED DESCRIPTION
[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.
[0027] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0028] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0029] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.
[0030] Reference Figures 1-4 For the first embodiment of the present application, an environment-friendly anti-theft nut with a degradable built-in sleeve is proposed, which comprises a nut 1, the nut 1 has a threaded hole 101, the inner wall of the threaded hole 101 has a limiting groove 102, the limiting groove 102 is arc-shaped, an anti-theft bead 2 is arranged in the limiting groove 102, a degradable built-in sleeve 3 is arranged in the threaded hole 101, and the outer wall of the anti-theft bead 2 abuts against the degradable built-in sleeve 3.
[0031] In this embodiment, the arc-shaped limiting groove 102 is arranged on the inner wall of the threaded hole 101 to place the anti-theft bead 2. When installed, the degradable built-in sleeve 3 is pushed out by the screw rod, and the anti-theft bead 3 takes effect and rolls in the arc-shaped limiting groove 102. When the screw rod is retracted, the anti-theft bead 2 rolls in the arc-shaped limiting groove 102 and enters the small groove end of the arc-shaped limiting groove 102, thereby increasing the resistance and achieving anti-theft.
[0032] Under the current increasingly stringent environmental protection requirements, the traditional ball-type anti-theft nut usually uses a built-in sleeve made of non-degradable material. After the built-in sleeve is pushed out, it will cause long-term pollution to the environment. The use of a degradable built-in sleeve 3 can gradually decompose in the natural environment after completing its mission, effectively reducing the negative impact on the environment.
[0033] Further, the degradable built-in sleeve 3 has a yielding groove 301, which is located on one side of the limiting groove 102 and is used to accommodate the anti-theft bead 2.
[0034] In this embodiment, the yielding groove 301 greatly optimizes its cooperation with the anti-theft bead 2. From the perspective of functional implementation, the yielding groove 301 is arranged on one side of the limiting groove 102, which can accurately provide accommodation space for the anti-theft bead 2. The degradable built-in sleeve 3 can stably position the anti-theft bead 2 through the yielding groove 301, avoiding its rolling and collision inside the package, thereby preventing potential damage to the product caused by the displacement of the anti-theft bead 2 and ensuring the integrity of the product.
[0035] The yielding groove 301 enables the operator to easily shake the nut 1 through this through groove. This operation greatly facilitates the observation of the state of the anti-theft bead 2. Before the production line or installation, the worker can quickly check whether the anti-theft bead 2 is missing, damaged, or can normally move in the limiting groove 102. If the anti-theft bead 2 has a problem, the nut can be replaced or adjusted in time, avoiding rework caused by discovering the problem in the subsequent installation process, thereby saving time and labor costs.
[0036] Further, the yielding groove 301 is semicircular, and the radius of the yielding groove 301 is smaller than the radius of the anti-theft bead 2.
[0037] In this embodiment, since the radius of the accommodation groove 301 is smaller than that of the anti-theft bead 2, when the anti-theft bead 2 is placed therein, a semi-enclosed limiting effect is formed. When the nut 1 is used daily or subjected to slight vibration, this limiting effect can effectively prevent the anti-theft bead 2 from excessive shaking or even falling out of the limiting groove 102. The semicircular shape fits the contour of the anti-theft bead 2, and compared with other shapes, it can more evenly disperse the external force, further enhancing the stability of the anti-theft bead 2 during transportation. The semicircular through groove design retains the convenience of observing the state of the anti-theft bead 2. The operator can still easily shake the nut 1 through the accommodation groove 301, thereby clearly observing the integrity and activity of the anti-theft bead 2. Moreover, this shape is more convenient to operate, and workers are more likely to control the shaking force and angle when checking before installation, thereby improving the checking efficiency. The smaller radius of the accommodation groove 301 can also ensure that the anti-theft bead 2 can be smoothly clamped into the threads of the bolt during the installation of the nut 1 and the bolt, thereby avoiding the shaking of the anti-theft bead 2 during installation or transportation, which may cause the anti-theft bead 2 to fall off and fail.
[0038] Further, the accommodation groove 301 and the limiting groove 102 are arranged in a plurality of circumferential rows, and the number of the accommodation groove 301 and the limiting groove 102 is the same and one-to-one corresponding.
[0039] In this embodiment, the plurality of circumferentially arranged accommodation grooves 301 and limiting grooves 102 cooperate to make the anti-theft beads 2 more evenly distributed. When the nut 1 is subjected to external force and attempts to rotate, the anti-theft beads 2 at various positions can all play a role, forming multi-directional resistance. The one-to-one corresponding design ensures that each anti-theft bead 2 can be accurately positioned in the corresponding limiting groove 102, and when necessary, the state can be checked and operated through the corresponding accommodation groove 301, further improving the reliability of the anti-theft system.
[0040] The circumferential arrangement of the plurality of accommodation grooves 301 and limiting grooves 102 enables the force to be more evenly distributed to each part when the nut 1 is subjected to external force. Compared with a single or a few accommodation grooves and limiting grooves, this circumferential distribution structure can better withstand torque and pressure, enhancing the stability of the overall structure of the nut 1 and the degradable built-in sleeve 3, and ensuring that the product can be used normally under various complex working conditions.
[0041] The evenly distributed accommodation grooves 301 and limiting grooves 102 also help to balance the stress of the degradable built-in sleeve 3 in the circumferential direction, avoiding damage to the material during transportation due to excessive local stress, ensuring the use effect of the built-in sleeve 3, and also meeting the characteristic requirements of degradable materials, thereby minimizing material loss while ensuring functionality.
[0042] Further, the nut 1 has a convex ring 103, and the degradable built-in sleeve 3 also has an abutting portion 302, and the convex ring 103 is arranged in abutment with the abutting portion 302.
[0043] In this embodiment, the abutment of the convex ring 103 and the abutting portion 302 plays a role in accurate positioning during the installation of the degradable built-in sleeve 3 to the nut 1. It ensures the correct assembly of the nut 1 and the built-in sleeve 3, and can effectively prevent the nut 1 from loosening due to factors such as vibration during transportation.
[0044] Further, the degradable built-in sleeve 3 also has a degradation groove 303, which is located at the bottom of the degradable built-in sleeve 3 and on one side of the accommodation groove 301.
[0045] In this embodiment, the design of the degradation groove 303 improves the degradation performance of the degradable built-in sleeve 3. By increasing the degradation area, the degradable built-in sleeve 3 is more fully in contact with the degradation substance in the natural environment. For example, in degradation scenarios such as soil burial or natural weathering, more surfaces of the degradable material are exposed, accelerating the degradation reaction. After a certain period of time, the built-in sleeve 3 will crack itself due to the gradual decomposition of the material at the degradation groove 303, greatly shortening the time required for overall degradation and improving the degradation efficiency.
[0046] Faster degradation speed means that the degradable built-in sleeve 3 has a significantly reduced residual time in the environment, effectively reducing the potential impact on the ecological environment. In some environmentally stringent application fields, such as food packaging, agricultural mulch, etc., the degradable built-in sleeve 3 can better meet the needs of sustainable development with the design of the degradation groove 303.
[0047] In the production link, the processing technology of the degradation groove 303 is simple, and it can be realized by die stamping or cutting at the bottom of the degradable built-in sleeve 3 and on one side of the accommodation groove 301, or by making corresponding molds, which can also be integrally formed, facilitating production and processing.
[0048] Further, the anti-theft bead 2 is used to abut with the threads of the screw rod.
[0049] In this embodiment, when the nut is connected with the screw rod, it may be subjected to various external forces such as vibration and impact during the operation of the equipment. At this time, the abutment of the anti-theft bead 2 and the threads of the screw rod plays a role similar to a "wedge". It can effectively prevent the nut from loosening due to vibration, even in a long-time, high-intensity vibration environment, such as vibrating equipment in industrial production, transportation tools, etc., it can maintain the close connection between the nut and the screw rod, ensure the normal operation of the equipment, reduce the risk of failure caused by loose connection, and prolong the service life of the equipment.
[0050] Further, the degradable inner sleeve 3 has a cavity 304, and the degradation groove 303 is connected to the cavity 304.
[0051] In the embodiment, the degradation groove 303 is connected to the cavity 304, which greatly expands the contact path of the degradable material with the external degradation medium. When the degradable inner sleeve 3 is in the natural environment, whether it is the microorganisms in the soil, moisture, or oxygen in the air, and other degradation factors can more smoothly enter the inside of the cavity 304 through the degradation groove 303. This means that the internal material of the inner sleeve 3 can also fully participate in the degradation process, and compared with similar products without the cavity connection design, the degradation area of the degradable inner sleeve 3 is greatly increased, and the degradation speed is significantly accelerated.
[0052] The communication design of the cavity 304 and the degradation groove 303 does not significantly increase the production difficulty. When manufacturing the degradable inner sleeve 3, through common molding processes such as injection molding and blow molding, the integrated manufacturing of the cavity 304 and the degradation groove 303 can be relatively convenient. This design not only does not need complex secondary processing or special process, but also can save materials to a certain extent. Because the degradation speed is accelerated, under the premise of meeting the same service life requirement, the amount of degradable material can be appropriately reduced, thereby reducing the production cost.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application. It should be included in the scope of the claims of the present application.
Claims
1. An environment-friendly anti-theft nut with a degradable built-in sleeve, characterized in that, Include: Nut (1), the nut (1) has a threaded hole (101), the inner wall of the threaded hole (101) has a limiting slot (102), the limiting slot (102) is arc-shaped; Anti-theft beads (2), the anti-theft beads (2) are arranged in the limiting slot (102); Degradable built-in sleeve (3), the degradable built-in sleeve (3) is arranged in the threaded hole (101), and the anti-theft beads (2) and the outer wall of the degradable built-in sleeve (3) are in abutment.
2. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 1, characterized in that, The degradable built-in sleeve (3) has a let go slot, which is located on one side of the limiting slot (102) and used for accommodating the anti-theft beads (2).
3. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 2, characterized in that, The let go slot is semicircular, and the radius of the let go slot is smaller than the radius of the anti-theft beads (2).
4. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 3, characterized in that, The let go slot and the limiting slot (102) are arranged in several circumferences, and the number of the let go slot and the limiting slot (102) is the same and one-to-one corresponding.
5. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 1, characterized in that, The nut (1) has a convex ring, and the degradable built-in sleeve (3) also has an abutment part, and the convex ring and the abutment part are in abutment.
6. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 2, characterized in that, The degradable built-in sleeve (3) also has a degradation slot, which is located at the bottom of the degradable built-in sleeve (3) and on one side of the let go slot.
7. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 1, characterized in that, The anti-theft beads (2) are used for abutting with the threads of the screw rod.
8. The environment-friendly anti-theft nut with a degradable inner sleeve according to claim 6, characterized in that, The degradable built-in sleeve (3) has a cavity, and the degradation slot leads to the cavity.