Clamping structure

Abstract

The embodiment of the utility model relates to the technical field of mechanical connection, and discloses a clamping structure which is used for clamping a target object and an installation body, the installation body is provided with a hollow part, and the clamping structure is arranged in the hollow part in a penetrating mode. The clamping structure comprises a support, the support comprises a supporting seat and a supporting leg which is bent and extends from the supporting seat, the supporting seat protrudes out of the mounting body, and the supporting leg is connected to the mounting body; the clamping feet are bent and extend from the support, and the clamping feet and the supporting feet are bent in the same direction; the clamping feet penetrate through the hollow part in a suspended mode, and the multiple clamping feet and the multiple supporting feet are sequentially arranged at intervals. The clamping structure is directly arranged on the installation body, the installation process is simplified, the number of parts is reduced, clamping and fixing with the target object can be achieved only through the support and the clamping feet, the clamping structure is simplified, and the assembling efficiency of the installation body and the target object is effectively improved; in addition, the firmness of connection between the target object and the mounting body can be improved.

Description

Technical Field

[0001] This application relates to the field of mechanical connection technology, and in particular to a snap-fit ​​structure. Background Technology

[0002] In the field of existing mechanical connection technology, snap-fit ​​structures are widely used as an important means of rapid assembly for connecting components in various products. Snap-fit ​​structures are generally used as separate components. During use, they need to be connected not only to the mounting body but also to the target object for fixation. Thus, each snap-fit ​​structure requires separate production or procurement and separate assembly, reducing assembly efficiency. Utility Model Content

[0003] One object of this application is to provide a snap-fit ​​structure that at least solves the above-mentioned problems.

[0004] To achieve the above objectives, some embodiments of this application provide a snap-fit ​​structure for snapping a target object and a mounting body together. The mounting body has a hollow portion, and the snap-fit ​​structure passes through the hollow portion. The snap-fit ​​structure includes:

[0005] The bracket includes a support and a leg that bends and extends from the support, the support protruding from the mounting body and the leg being connected to the mounting body;

[0006] A locking foot, a locking foot that bends and extends from the support, and bends in the same direction as the support;

[0007] Among them, the locking feet are suspended through the hollow part, and multiple locking feet and multiple supporting feet are arranged in sequence at intervals.

[0008] Compared with related technologies, the solution provided in this application embodiment directly sets the snap-fit ​​structure on the mounting body, which not only simplifies the installation process and reduces the number of parts, but also enables snap-fit ​​fixing with the target object using only brackets and snap-fit ​​feet, simplifying the snap-fit ​​structure and effectively improving the assembly efficiency between the mounting body and the target object; in addition, it also helps to improve the firmness of the connection between the target object and the mounting body. Attached Figure Description

[0009] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0010] Figure 1 This is a schematic diagram of the snap-fit ​​structure provided in the embodiments of this disclosure;

[0011] Figure 2This is a schematic diagram of the snap-fit ​​structure provided in another embodiment of the present disclosure;

[0012] Figure 3 This is a schematic diagram of the snap-fit ​​structure provided in another embodiment of the present disclosure;

[0013] Figure 4 This is a schematic diagram of the snap-fit ​​structure provided in an embodiment of the present disclosure from another perspective.

[0014] Figure label:

[0015] 10: Bracket; 101: Support; 1011: Hollowed-out part; 1012: Annular part; 1013: Support beam; 102: Leg; 1021: First folded edge; 1022: Second folded edge; 103: Clamping foot; 1031: Elastic sheet; 1032: Clamping protrusion;

[0016] 20: Mounting body; 201: Hollow section; 202: Supporting structure. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0019] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0020] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0021] Unless otherwise stated, the term "multiple" means two or more.

[0022] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0023] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0025] Combination Figures 1 to 4 As shown in the illustration, this embodiment provides a snap-fit ​​structure for snapping a target object and a mounting body 20 together. The mounting body 20 has a hollow portion 201, and the snap-fit ​​structure passes through the hollow portion 201. In this embodiment, the snap-fit ​​structure is located on the mounting body 20 and can be considered as part of the mounting body 20. When snap-fit ​​is required, the mounting hole of the target object is fitted onto the snap-fit ​​structure, forming a limiting position with the snap-fit ​​structure, thereby achieving a fixed connection. The snap-fit ​​structure includes a bracket 10 and snap feet 103. In this embodiment, both the bracket 10 and the snap feet 103 of the snap-fit ​​structure are arranged in a direction perpendicular to the surface of the hollow portion 201.

[0026] The bracket 10 includes a support 101 and a leg 102 extending from the support 101. The support 101 protrudes from the mounting body 20, and the leg 102 is connected to the mounting body 20. The clamping foot 103 extends from the support 101 and bends in the same direction as the leg 102. The clamping foot 103 is suspended through the hollow part 201, and multiple clamping feet 103 and multiple legs 102 are arranged in sequence at intervals.

[0027] By adopting the snap-fit ​​structure provided in this embodiment, the snap-fit ​​structure is directly set on the mounting body 20, which not only simplifies the installation process and reduces the number of parts, but also enables snap-fit ​​fixation with the target object using only the bracket 10 and the snap-fit ​​foot 103. This simplifies the snap-fit ​​structure and effectively improves the assembly efficiency between the mounting body 20 and the target object. In addition, it also helps to improve the firmness of the connection between the target object and the mounting body 20.

[0028] The snap-fit ​​structure is fixed to the mounting body 20 by the bracket 10 and the locking foot 103 to limit and fix the target object, thereby achieving the connection and fixation between the target object and the mounting body 20.

[0029] In this embodiment, the unidirectional bending design and staggered arrangement of the support legs 102 and clamping feet 103 create staggered support and clamping force points, constructing a stable three-dimensional force balance system. This not only helps improve the structural stability of the snap-fit ​​structure itself but also enhances the firmness and stability of the connection between the target object and the mounting body 20. Furthermore, the bending design of the support legs 102 and clamping feet 103 facilitates intelligent operation, enabling self-locking during assembly and elastic release through reverse force application during disassembly.

[0030] In addition, the non-contact design of the suspended locking feet 103 and the hollow part 201 creates an elastic deformation space, which, together with the support feet 102, forms a gradient clamping force distribution, ensuring the locking effect between the target object and the mounting body 20.

[0031] In this embodiment, the snap-fit ​​structure works in concert with the rigid support system formed by the bracket 10 and the elastic clamping system formed by the snap-fit ​​foot 103 to ensure the overall structural rigidity and provide the necessary assembly tolerance.

[0032] This embodiment effectively solves the technical contradiction of balancing stability and detachability in existing snap-fit ​​devices through innovative spatial layout and mechanical structure design, and has significant application value in the fields of automotive parts, electronic equipment and home appliances.

[0033] Optionally, the locking foot 103 includes: an elastic piece 1031, one end of which is connected to the support 101 and the other end is suspended through the hollow portion 201; and a locking protrusion 1032, which is formed by protruding outward from the side wall of the elastic piece 1031, and the distance from the edge of the locking protrusion 1032 away from the support 101 to the elastic piece 1031 gradually increases along the direction from the support 101 to the mounting body 20.

[0034] In this way, a nonlinear elastic system is formed through the synergistic effect of the elastic sheet 1031 and the locking protrusion 1032. During the insertion of the target object, the gradually expanding contour of the edge of the locking protrusion 1032 (the dimensional gradient change from the elastic sheet 1031) generates progressive contact pressure, causing the clamping force to exhibit a certain dynamic growth curve during the insertion stroke of the target object, thus achieving flexible locking with load self-adaptation. In addition, the gradually expanding edge structure of the locking protrusion 1032 forms a spatial wedge-shaped guide surface, which automatically generates a radial component force when in contact with the target object, guiding the target object to be precisely positioned along the preset assembly trajectory, reducing the dependence of assembly on operational precision.

[0035] The edge of the locking protrusion 1032 that is far from the support 101 can be understood as the distal edge of the locking protrusion 1032. That is, the distal edge of the locking protrusion 1032 forms a reverse stop surface. When the target object is subjected to axial tensile force, the bending deformation of the elastic sheet 1031 increases the contact area between the locking protrusion 1032 and the target object, and inhibits loosening through the dual action of friction locking and mechanical limiting.

[0036] The suspension design of the free end of the elastic sheet 1031, combined with the continuously gradient contour of the edge of the latching protrusion 1032, effectively reduces the stress concentration factor compared to traditional right-angle latches. For example, the stress concentration factor is reduced from 2.3-3.5 for traditional right-angle latches to 1.2-1.8, significantly improving fatigue resistance and helping to extend the service life of the latching structure.

[0037] The sidewall of the 1032 protrusion and the body of the elastic sheet 1031 form a double contact area (line contact + surface contact). Under certain external impact, energy is absorbed through contact mode switching, and the displacement amplitude under vibration conditions can be effectively reduced.

[0038] Elastic sheet 1031 is generally sheet-like, but it is not limited to sheet-like structure; it can also be strip-like or columnar.

[0039] Optionally, the edge of the protrusion 1032 that is away from the support 101 is spaced at a preset distance from the mounting body 20 to install and fix the target object.

[0040] It should be noted that the preset distance is greater than or equal to the thickness of the target object, so that when the target object is fitted onto the snap-fit ​​structure, the distal end of the snap-fit ​​protrusion 1032 can abut against the target object to limit and fix the target object. That is, when the target object is completely within the preset distance, the change in the radius of curvature of the elastic sheet 1031 causes a jump in clamping force, forming a safety locking threshold. In addition, the interval distance serves as a physical limit marker. When the surface of the target object contacts the mounting body 20, the operator can quickly determine the assembly status through tactile feedback (sudden increase in resistance) or visual alignment (disappearance of gap), effectively reducing the assembly error rate.

[0041] Optionally, the edge of the protrusion 1032 is designed to be non-contact with the mounting body 20, which can eliminate stress concentration caused by lateral friction.

[0042] Optionally, the hollow part 201 is a ring structure and the support 101 is a ring structure; wherein, the locking feet 103 and the supporting feet 102 are arranged at intervals along the circumference of the support 101, and at least two locking feet 103 are symmetrically arranged.

[0043] The support 101 has a ring-shaped structure, with clamping feet 103 and support feet 102 arranged circumferentially around the support 101. This arrangement helps to ensure uniform force distribution on the support 101 during engagement with the target object. The hollow portion 201, also ring-shaped, complements the support 101. The coaxial structure of the ring-shaped support 101 and the hollow portion 201 forms a closed force transmission path. Combined with the circumferentially spaced clamping feet 103 and support feet 102, this helps reduce the fluctuation rate of the clamping force on the target object in the 360° direction, eliminating local stress concentration. Furthermore, the symmetrical arrangement of at least two clamping feet 103 forms a multi-mirror mechanical unit, automatically triggering reverse compensation deformation under any radial load.

[0044] Optionally, the support leg 102 includes: a first folded edge 1021, which is formed by bending and extending from the edge of the support 101 toward the direction of the mounting body 20; and a second folded edge 1022, which is formed by bending and extending from the edge of the first folded edge 1021 toward the edge away from the side of the support 101 (i.e., bending toward the hollow portion 201 of the mounting body 20), and is connected to the edge of the hollow portion 201 of the mounting body 20; wherein the second folded edge 1022 is located inside the hollow portion 201.

[0045] The continuous bending of the first fold 1021 and the second fold 1022 forms a three-level deformation gradient zone (support 101 - first fold 1021 - second fold 1022), decomposing the axial load into a dual-path transmission of bending stress and shear stress, effectively reducing the peak stress compared to a single-fold structure. The floating connection design of the second fold 1022 within the hollow part 201 forms a fine-tuning mechanism, allowing the support leg 102 to adaptively adjust within a certain deflection range, compensating for axial alignment deviations between the mounting body 20 and the target object.

[0046] In this embodiment, the first fold 1021 and the second fold 1022 are deformed in a coordinated manner. The first fold 1021 serves as the main deformation zone to achieve large stroke buffering, while the second fold 1022 serves as the limiting zone to precisely control the deformation.

[0047] Optionally, the support 101 is constructed with a hollow portion 1011 to reduce weight. This not only achieves weight reduction but also absorbs vibration energy through the hollow portion 1011, reducing vibration transmission rate. Furthermore, the hollow portion 1011 of the support 101 forms an airflow channel, which, in conjunction with forced convection, effectively dissipates heat from the support 101.

[0048] For example, the hollow portion 1011 of the support 101 can also be used as a wire channel, expanding its functionality.

[0049] Optionally, the support 101 includes: an annular portion 1012, which is a hollow structure (i.e., the hollow portion 1011 provided in the above embodiment), for connecting the support leg 102 and the locking leg 103; and a support beam 1013, which is disposed in the annular portion 1012 and connects at least two symmetrically arranged support legs 102 to support the support legs 102.

[0050] For example, the annular portion 1012 of the support 101 may have only one openwork portion 1011. For example, if the annular portion 1012 of the support 101 has multiple openwork portions 1011, the sidewalls between the openwork portions 1011 may be considered as support beams 1013. Alternatively, the annular portion 1012, which is an openwork structure, may be divided into multiple openwork portions 1011 by designing support beams 1013.

[0051] Two support legs 102 are positioned opposite each other on both sides of the support 101. When locked and fixed to the target object, this helps to improve the stability of the connection between the locking structure and the target object, and ensures that the force is evenly distributed between them.

[0052] Optionally, the bracket 10 and the foot 102 are integrally formed. Designing the snap-fit ​​structure as an integrally formed structure simplifies its production and facilitates installation. In this embodiment, the snap-fit ​​structure and the mounting body 20 can be fixed by welding, bonding, or detachable connection.

[0053] Optionally, the bracket 10, the foot 102, and the mounting body 20 are integrally formed. Designing the snap-fit ​​structure and the mounting body 20 as an integrally formed structure can further simplify the production of the snap-fit ​​structure, facilitate installation, solve the problem of snap-fit ​​in the prior art, and also reduce production costs and improve assembly efficiency.

[0054] Optionally, it also includes a support structure 202, which is disposed around the edge of the hollow portion 201 of the mounting body 20 and on the same side as the bracket 10. This helps to work in conjunction with the bracket 10 to increase the connection strength and stability between the mounting body 20 and the target object.

[0055] The support structure 202 and the bracket 10 are arranged on the same side to form a double-layer stress transmission network. Axial loads are decomposed through the parallel transmission path of the bracket 10's legs 102 and the support structure 202. This also avoids direct contact between the target object and the mounting body 20, improving the bending strength of the mounting body 20. In addition, the support structure 202 and the hollow part 201 are coaxially arranged, providing a positioning interface for the object and reducing assembly errors.

[0056] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims, and the foregoing embodiments should be considered exemplary and non-limiting.

Claims

1. A snap-fit ​​structure for snapping together a target object and a mounting body, characterized in that, The mounting body has a hollow section, through which a snap-fit ​​structure is inserted; the snap-fit ​​structure includes: The bracket includes a support and a leg that bends and extends from the support, the support protruding from the mounting body and the leg being connected to the mounting body; A locking foot, a locking foot that bends and extends from the support, and bends in the same direction as the support; Among them, the locking feet are suspended through the hollow part, and multiple locking feet and multiple supporting feet are arranged in sequence at intervals.

2. The snap-fit ​​structure according to claim 1, characterized in that, The pin includes: An elastic sheet is attached to a support at one end and suspended through the hollow part at the other end. The locking protrusion is formed by protruding outward from the side wall of the elastic sheet, and along the direction from the support to the mounting body, the distance from the edge of the locking protrusion away from the support to the elastic sheet gradually increases.

3. The snap-fit ​​structure according to claim 2, characterized in that, The edge of the card protrusion furthest from the support is spaced at a preset distance from the mounting body to install and fix the target object.

4. The snap-fit ​​structure according to claim 1, characterized in that, The hollow part has a ring structure, and the support has a ring structure; The clamps and supports are arranged at intervals along the circumference of the support, and at least two clamps are symmetrically arranged.

5. The snap-fit ​​structure according to claim 1, characterized in that, The legs include: The first fold is formed by bending and extending from the edge of the support. The second fold is formed by bending and extending from the edge of the first fold toward the edge away from the support, and is connected to the edge of the hollow part of the mounting body. The second fold is located inside the hollow section.

6. The snap-fit ​​structure according to claim 1, characterized in that, The support structure has openwork sections to reduce weight.

7. The snap-fit ​​structure according to claim 1, characterized in that the support... include: The ring-shaped part is a hollow structure used to connect the support legs and the locking legs; A support beam is located within the annular portion and connects to at least two symmetrically arranged legs to support the legs.

8. The snap-fit ​​structure according to claim 1, characterized in that, The bracket and legs are molded as one piece.

9. The snap-fit ​​structure according to claim 1, characterized in that, The bracket, legs, and mounting body are molded as a single unit.

10. The snap-fit ​​structure according to any one of claims 1 to 9, characterized in that, Also includes: The support structure is arranged around the edge of the hollow part of the mounting body and is located on the same side as the bracket.

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