Sleeve and fixing assembly

Abstract

The utility model discloses a sleeve and a fixing assembly, and the sleeve comprises an accommodation cavity which is used for placing an external cable; the metal plate containing part comprises a first opening and a first bottom wall, the first bottom wall and the first opening are oppositely arranged, and the first opening is used for allowing external automobile body metal plates to enter the metal plate containing part; the limiting structure is arranged on the first bottom wall, the limiting structure comprises a first convex part, the first convex part and the first bottom wall define a first concave part, and the first concave part is used for being matched with an external automobile body metal plate in a concave-convex mode so that the external automobile body metal plate can be limited in the metal plate containing part. According to the utility model, through the concave-convex matching of the first concave part and the metal plate of the vehicle body, the cable can be stably connected with the metal plate of the vehicle body all the time in the face of complex and changeable actual working conditions, and the cable is prevented from being twisted due to the stability of the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of sensors, and in particular to a sleeve and fixing assembly. Background Technology

[0002] As a component of the sensor, the sleeve serves two main purposes: firstly, it secures the sensor cable, ensuring its correct position and routing and preventing connection problems caused by cable movement or displacement; secondly, it also helps to fix the sensor to the vehicle's sheet metal.

[0003] However, in the current sleeve design, the mating surface with the vehicle body sheet metal has a circular structure. When the vehicle encounters bumpy road conditions, such as driving on rough mountain roads, the vehicle will experience severe vibration and shaking; or in other special situations, such as a side impact or emergency braking generating significant inertial forces, the sleeve will rotate relative to the vehicle body sheet metal due to the characteristics of its circular mating surface. When the sleeve begins to rotate, the cable closely connected to it will inevitably twist as well. Cables are typically composed of multiple thin conductors, and their inherent structural characteristics make them unable to withstand frequent and excessive torsional stress. With the increase in the number of twists and the accumulation of torsional angles, the conductors inside the cable will gradually deform and break, eventually leading to cable damage and rendering the sensor malfunctioning. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing sleeves rotate relative to the vehicle body sheet metal. This invention provides a sleeve and fixing component that, through a first recessed part that engages with the concave and convex parts of the vehicle body sheet metal, can maintain a stable connection with the vehicle body sheet metal even under complex and ever-changing actual working conditions. The cable is also freed from the problem of torsion due to the stability of the sleeve.

[0005] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a sleeve, wherein the sleeve has a hollow structure and comprises:

[0006] A receiving cavity for housing external cables;

[0007] A sheet metal receiving part, the sheet metal receiving part including a first opening and a first bottom wall, the first bottom wall being disposed opposite to the first opening, the first opening being used to allow external body sheet metal to enter the sheet metal receiving part;

[0008] A limiting structure is provided on the first bottom wall. The limiting structure includes a first protrusion, which, together with the first bottom wall, defines a first recess. The first recess is used to engage with external body sheet metal to confine the external body sheet metal within the sheet metal receiving portion.

[0009] Using the above technical solution, in actual operation, when the operator begins to fix the sleeve to the body sheet metal, the body sheet metal will enter the sheet metal receiving part through the first opening. Subsequently, the first recess of the limiting structure and the body sheet metal form a concave-convex fitting mechanism, through which the sleeve is firmly fixed to the body sheet metal.

[0010] Compared to existing sleeves that use a circular structure to engage with the vehicle body sheet metal, the sleeve in this technical solution uses a first recess to engage with the body sheet metal, maintaining a stable connection even under complex and changing operating conditions. The cable placed within the receiving cavity is also protected from torsion due to the sleeve's stability. The cable no longer needs to withstand torsional stress caused by sleeve rotation, ensuring its internal conductor structure remains intact. This effectively extends the cable's lifespan, reduces sensor malfunctions caused by cable damage, and improves the stability and reliability of the vehicle system.

[0011] According to another specific embodiment of the present invention, along the first direction, the sheet metal receiving portion includes a first sidewall and a second sidewall spaced apart to form the first opening, and along the first direction, the two ends of the first bottom wall are respectively connected to the first sidewall and the second sidewall to form the sheet metal receiving portion.

[0012] According to another specific embodiment of the present invention, the sheet metal receiving part includes a third side wall. Along the second direction, the third side wall is connected to one end of the first bottom wall, and the first protrusion is connected to the other end of the first bottom wall. Along the second direction, the third side wall and the first protrusion are spaced apart. The third side wall is used to contact the external body sheet metal. The second direction is perpendicular to the first direction.

[0013] According to another specific embodiment of the present invention, the first protrusion includes two parts, the first concave part includes two parts, and along a third direction, the two first protrusions are symmetrically arranged and the two first concave parts are symmetrically arranged.

[0014] The first bottom wall comprises two, which are symmetrically arranged along the third direction, and the third direction is perpendicular to the first direction.

[0015] According to another specific embodiment of the present invention, the first opening extends circumferentially and is arranged in an open loop.

[0016] According to another specific embodiment of the present invention, the limiting structure includes a first outer wall and a second outer wall connected together to form the first protrusion, and the first bottom wall, the first outer wall and the second outer wall are connected in sequence.

[0017] The limiting structure also includes a third outer wall, and the first outer wall, the second outer wall and the third outer wall are connected in sequence to form a second recess, which is used to prevent contact with the external body sheet metal.

[0018] According to another specific embodiment of the present invention, the first outer wall includes an arc surface.

[0019] In existing technology, the sleeve is connected to the body sheet metal via a circular structure. This means that during installation, the entire outer surface of the circular structure makes full contact with the body sheet metal. This large-area contact results in significant frictional resistance during installation, requiring operators to exert more physical effort and making the process more strenuous.

[0020] By employing the above technical solution, the second recess does not contact the body sheet metal, effectively reducing the contact area between the limiting structure and the body sheet metal. As the contact area decreases, the frictional resistance generated during installation also decreases. This makes the installation process smoother and more efficient, reducing the labor intensity of operators.

[0021] According to another specific embodiment of the present invention, the sleeve includes a pressing part, the pressing part is connected to the sheet metal receiving part, and along the second direction, the pressing part and the sheet metal receiving part are located on opposite sides. Along the third direction, the two ends of the pressing part respectively extend beyond the two ends of the limiting structure. The pressing part includes a first arc surface, which is used for external operators to press.

[0022] By adopting the above technical solution, the operator can press the first arc surface to make the limiting structure fit with the concave and convex parts of the body sheet metal, which can reduce the impact on the operator's fingers during the installation process and improve the comfort of operation.

[0023] According to another specific embodiment of the present invention, the sleeve includes a tapered section, one end of which is connected to the sheet metal receiving portion, and the cross-sectional area of ​​the tapered section gradually decreases along the direction away from the sheet metal receiving portion.

[0024] By adopting the above technical solution, as the cross-sectional area of ​​the tapered section gradually decreases, compared with the traditional sleeve design with constant cross-section or other non-optimized structures, the amount of raw materials required to manufacture sleeves with the same function and specifications is reduced accordingly, thereby reducing the production cost of the sleeve.

[0025] In addition, the tapered section can effectively fix the extension direction of the cable, providing a stable and clear guide for the cable, ensuring that the cable can be arranged and extended in an orderly manner according to the design requirements.

[0026] Without a tapered section, the cable will extend directly from one end of the sheet metal housing. If the vehicle is traveling on bumpy roads, the unevenness of the road surface will cause the vehicle to vibrate and shake. In this situation, without the guidance and cushioning of the tapered section, the cable will be in an unstable state at the limiting structure, making it highly susceptible to external pulling forces. Over time, the internal structure of the cable will gradually be damaged, the conductors may break, leading to cable failure and reducing its lifespan.

[0027] According to another specific embodiment of the present invention, the sleeve includes a thickened section, and the other end of the tapered section is connected to the thickened section, wherein the cross-sectional area of ​​the thickened section is larger than the cross-sectional area of ​​the other end of the tapered section.

[0028] Using the above technical solution, if the sleeve is used in a low-temperature environment, the thickened section can ensure the integrity of the overall sleeve structure due to its thickness, preventing cracking. If the thickness here is too thin, the sleeve is very likely to crack at the weak point when affected by factors such as internal stress caused by thermal expansion and contraction, thereby compromising the structural stability of the sleeve itself and preventing it from continuing to perform its basic functions of fixing sensor cables and securing sensors to the vehicle body sheet metal.

[0029] According to another specific embodiment of this utility model, the sleeve is an elastic element.

[0030] Using the above technical solution, the sleeve is an elastic component, meaning that the sleeve can undergo elastic deformation. Therefore, the operator can press the sleeve into the body sheet metal to achieve a fixed fit with the body sheet metal.

[0031] According to another specific embodiment of the present invention, the sleeve is made of PDM material (PolyDimethyl Terephthalate).

[0032] The present invention also discloses a fixing component, the fixing component comprising:

[0033] The sleeve described in any of the preceding items;

[0034] The body sheet metal includes a second protrusion, which enters the sheet metal receiving portion through the first opening. The second protrusion engages with the first recess of the limiting structure, and the second protrusion fits against the first bottom wall of the limiting structure to confine the body sheet metal within the sheet metal receiving portion.

[0035] A cable is disposed in the receiving cavity of the sleeve, and both ends of the cable extend out of the sleeve.

[0036] According to another specific embodiment of the present invention, the body sheet metal includes a first wall, a second wall, and a third wall connected to form the second protrusion; wherein,

[0037] The first wall contacts the third side wall of the sheet metal receiving portion;

[0038] The second wall is attached to the first bottom wall;

[0039] The third wall includes an arc, and the third wall is in contact with the first outer wall of the limiting structure. The second and third outer walls of the limiting structure are not in contact with the third wall.

[0040] According to another specific embodiment of the present invention, the first wall includes two parts, and the second wall includes two parts, with the two first walls and the two second walls symmetrically arranged along a third direction. Attached Figure Description

[0041] Figure 1 A perspective view of the fixing component according to an embodiment of the present invention is shown.

[0042] Figure 2 This is a perspective view of the sleeve according to an embodiment of the present invention.

[0043] Figure 3 This is a perspective view of the body sheet metal of an embodiment of the present invention.

[0044] Figure 4 A cross-sectional view of the fixing component according to an embodiment of the present invention is shown.

[0045] Figure 5 A cross-sectional view of the sleeve according to an embodiment of the present invention is shown.

[0046] Explanation of reference numerals in the attached figures

[0047] Sleeve 10;

[0048] Receiving cavity 11;

[0049] Sheet metal accommodating part 12;

[0050] First opening 121; First bottom wall 122; First side wall 123; Second side wall 124; Third side wall 125;

[0051] Limiting structure 13;

[0052] First convex part 131; first recessed part 132; first outer wall 133; second outer wall 134; third outer wall 135; second recessed part 136;

[0053] Pressing part 14; First arc surface 141;

[0054] Conical segment 15;

[0055] Thickened section 16;

[0056] Body panel repair 20;

[0057] The second protrusion 21; the first wall 22; the second wall 23; the third wall 24. Detailed Implementation

[0058] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0059] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0061] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0062] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0063] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0064] refer to Figures 1 to 3 This application provides a fixing component, which includes a sleeve 10, a body sheet metal 20, and a cable (not shown in the figure).

[0065] The sleeve 10 has a hollow structure and includes a receiving cavity 11, a sheet metal receiving portion 12, and a limiting structure 13. The receiving cavity 11 has a circular cross-section and is used to hold the cable, with both ends of the cable extending out of the sleeve 10. Figure 5 The sheet metal receiving part 12 has an axisymmetric structure, and the axis of symmetry is as follows: Figure 5 As shown by the dashed line, the axis of symmetry extends along the second direction Y. The sheet metal receiving part 12 includes a first opening 121 and two first bottom walls 122 symmetrically arranged along the third direction Z. The first bottom walls 122 are vertical planes. The first opening 121 and the two first bottom walls 122 are respectively arranged opposite to each other. The second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the first direction X.

[0066] Combination Figure 4 The limiting structure 13 is an axisymmetric structure, and the axis of symmetry is as follows: Figure 4 As shown by the dashed line, the axis of symmetry passes through the center of the receiving cavity and extends along the second direction Y. The limiting structure 13 is provided on the first bottom wall 122. The limiting structure 13 includes two first protrusions 131 symmetrically arranged along the third direction Z. Each first protrusion 131 and the corresponding first bottom wall 122 define a first recess 132. Therefore, the limiting structure 13 includes two first recesses 132 symmetrically arranged along the third direction Z.

[0067] The body sheet metal 20 has an axisymmetric structure, with the axis of symmetry as follows: Figure 3As shown by the dashed line, the axis of symmetry extends along the second direction Y. The body sheet metal 20 includes two second protrusions 21 symmetrically arranged along the third direction Z. The body sheet metal 20 enters the sheet metal receiving part 12 through the first opening 121. Each second protrusion 21 is in concave-convex fit with a corresponding first recess 132, and each second protrusion 21 is in contact with a corresponding first bottom wall 122 to confine the body sheet metal 20 within the sheet metal receiving part 12.

[0068] Using the above technical solution, in the actual operation process, when the operator begins to fix the sleeve 10 to the body sheet metal 20, the body sheet metal 20 will enter the sheet metal receiving part 12 through the first opening 121. Subsequently, the first concave part 132 of the limiting structure 13 and the second convex part 21 of the body sheet metal 20 form a concave-convex fitting mechanism. Through this fitting method, the sleeve 10 is firmly fixed to the body sheet metal 20.

[0069] Compared to existing sleeves that use a circular structure to engage with the vehicle body sheet metal, the sleeve 10 in this technical solution uses a first recess 132 and a second protrusion 21 in a convex-concave fit. This ensures a stable connection with the vehicle body sheet metal 20 even under complex and changing operating conditions. The cable placed within the receiving cavity 11 is also protected from torsion due to the stability of the sleeve 10. The cable no longer needs to withstand the torsional stress caused by the rotation of the sleeve 10, and its internal conductor structure remains intact. This effectively guarantees the cable's lifespan, reduces sensor malfunctions caused by cable damage, and improves the stability and reliability of the vehicle system.

[0070] It should be noted that the shape of the first bottom wall 122 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the first bottom wall 122 can be a slope, an arc, etc.

[0071] In some possible implementations, refer to Figures 2 to 5 The body sheet metal 20 includes a first wall 22, a second wall 23, a third wall 24, and a second wall 23 connected sequentially. Along the third direction Z, the two first walls 22 are symmetrically arranged, and the two second walls 23 are symmetrically arranged to form two second protrusions 21 symmetrically arranged along the third direction Z. The first wall 22 is an inclined surface, the second wall 23 is a vertical plane, each second wall 23 is fitted with a corresponding first bottom wall 122, and the third wall 24 is an arc.

[0072] It should be noted that the shape of the first wall 22 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the first wall 22 can be a vertical plane, an arc surface, etc. Similarly, the shape of the second wall 23 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the second wall 23 can be an inclined plane, an arc surface, etc. Likewise, the shape of the third wall 24 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the third wall 24 can be a square, an irregular shape, etc.

[0073] In some possible implementations, refer to Figures 2 to 5 Along the first direction X, the sheet metal receiving portion 12 includes a first sidewall 123 and a second sidewall 124 spaced apart to form a first opening 121. The first opening 121 extends circumferentially R and is arranged in an open loop. Along the first direction X, the two ends of each first bottom wall 122 are respectively connected to the first sidewall 123 and the second sidewall 124 to form the sheet metal receiving portion 12.

[0074] In some possible implementations, refer to Figures 2 to 5 The sheet metal receiving portion 12 includes two third sidewalls 125 symmetrically arranged along the third direction Z. The third sidewalls 125 are horizontal planes. Along the second direction Y, the third sidewalls 125 are spaced apart from the first protrusions 131. Along the second direction Y, each third sidewall 125 is connected to one end of the corresponding first bottom wall 122, and each first protrusion 131 is connected to the other end of the corresponding first bottom wall 122. The first wall 22 of the body sheet metal 20 contacts the third sidewalls 125.

[0075] It should be noted that the shape of the third sidewall 125 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the third sidewall 125 may be a slope, an arc, etc.

[0076] In some possible implementations, refer to Figures 2 to 5 On the left side of the axis of symmetry of the limiting structure 13, the limiting structure 13 includes a set of connected first outer walls 133 and second outer walls 134 to form a first protrusion 131. The first bottom wall 122, the first outer wall 133, and the second outer wall 134 on the left side of the axis of symmetry are connected in sequence. On the right side of the axis of symmetry of the limiting structure 13, the limiting structure 13 includes another set of connected first outer walls 133 and second outer walls 134 to form another first protrusion 131. The first bottom wall 122, the first outer wall 133, and the second outer wall 134 on the right side of the axis of symmetry are connected in sequence. The two first outer walls 133 are curved surfaces, and the two second outer walls 134 are inclined surfaces. Each first outer wall 133 fits against the third wall 24 of the corresponding body sheet metal 20, and each second outer wall 134 does not contact the corresponding third wall 24.

[0077] It should be noted that the shape of the first outer wall 133 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the first outer wall 133 can be an inclined plane, a horizontal plane, etc., as long as the first outer wall 133 can fit against the third wall 24. The shape of the second outer wall 134 is not specifically limited in this embodiment. For example, in other possible implementations, the shape of the second outer wall 134 can be a vertical plane, an irregular surface, etc., as long as the second outer wall 134 does not contact the third wall 24.

[0078] In some possible implementations, refer to Figures 2 to 5 The limiting structure 13 also includes two third outer walls 135 symmetrically arranged along a third direction Z. The third outer walls 135 are vertical planes. On the left side of the axis of symmetry of the limiting structure 13, a set of first outer walls 133, second outer walls 134, and third outer walls 135 are sequentially connected to form a second recess 136. On the right side of the axis of symmetry of the limiting structure 13, another set of first outer walls 133, second outer walls 134, and third outer walls 135 are sequentially connected to form another second recess 136. The two second recesses 136 do not contact the vehicle body sheet metal 20; that is, each third outer wall 135 does not contact the corresponding third wall 24.

[0079] In the prior art, the sleeve 10 is connected to the body sheet metal 20 through a circular structure. This means that during installation, the entire outer surface of the circular structure will be in full contact with the body sheet metal 20. This large-area contact pattern results in greater frictional resistance between the two during installation. Therefore, operators often need to exert more physical strength to perform the installation task, making the operation more strenuous.

[0080] By adopting the above technical solution, the second recess 136 does not contact the body sheet metal 20, effectively reducing the contact area between the limiting structure 13 and the body sheet metal 20. As the contact area decreases, the frictional resistance generated during installation also decreases. This makes the installation process smoother and more efficient, reducing the labor intensity of operators.

[0081] It should be noted that the shape of the third outer wall 135 is not specifically limited in this application embodiment. For example, in other possible implementations, the shape of the third outer wall 135 can be an inclined surface, a horizontal plane, an irregular surface, etc.

[0082] In some possible implementations, refer to Figure 2 and Figure 5The sleeve 10 includes a pressing part 14, which is connected to the sheet metal receiving part 12. Along the second direction Y, the pressing part 14 and the sheet metal receiving part 12 are located on opposite sides. Along the third direction Z, the two ends of the pressing part 14 extend beyond the two ends of the limiting structure 13. The pressing part 14 includes a first arc surface 141, which is used for external operators to press.

[0083] By adopting the above technical solution, the operator can press the first arc surface 141 to make the limiting structure 13 and the body sheet metal 20 fit together, which can reduce the impact on the operator's fingers during the installation process and improve the comfort of operation.

[0084] In some possible implementations, refer to Figure 1 and Figure 2 The sleeve 10 includes a tapered section 15, one end of which is connected to the sheet metal receiving portion 12. The cross-sectional area of ​​the tapered section 15 gradually decreases along the direction away from the sheet metal receiving portion 12.

[0085] By adopting the above technical solution, since the cross-sectional area of ​​the tapered section 15 gradually decreases, compared with the traditional sleeve design with equal cross-section or other non-optimized structures, the amount of raw materials required to manufacture the sleeve 10 with the same function and specifications is reduced accordingly, thereby reducing the production cost of the sleeve 10.

[0086] In addition, the tapered section 15 can effectively fix the extension direction of the cable, providing a stable and clear guide for the cable, ensuring that the cable can be arranged and extended in an orderly manner according to the design requirements.

[0087] Without the tapered section 15, the cable would extend directly from one end of the sheet metal receiving section 12. If the vehicle is traveling on a bumpy road, the unevenness of the road surface will cause the vehicle to vibrate and shake. At this time, due to the lack of guidance and cushioning from the tapered section 15, the cable will be in an unstable state at the limiting structure 13, making it extremely susceptible to being pulled by external forces. Over time, the internal structure of the cable will gradually be damaged, and the conductors may be pulled apart, resulting in cable damage and reducing the cable's service life.

[0088] In some possible implementations, refer to Figure 1 , Figure 2 and Figure 5 The sleeve 10 includes a thickened section 16, and the other end of the tapered section 15 is connected to the thickened section 16. The cross-sectional area of ​​the thickened section 16 is larger than the cross-sectional area of ​​the other end of the tapered section 15.

[0089] Using the above technical solution, if the sleeve 10 is used in a low-temperature environment, the thickened section 16 can ensure the integrity of the overall structure of the sleeve 10 by virtue of its thickness, preventing cracking. If the thickness here is designed to be too thin, when affected by factors such as internal stress caused by thermal expansion and contraction, the sleeve 10 is very likely to crack at the weak point, thereby compromising the structural stability of the sleeve 10 itself and preventing the sleeve 10 from continuing to perform its basic functions of fixing the sensor cable and fixing the sensor to the body sheet metal 20.

[0090] In some possible implementations, the sleeve 10 is an elastic element.

[0091] Using the above technical solution, the sleeve 10 is an elastic element, that is, the sleeve 10 can undergo elastic deformation, so the operator can press the sleeve 10 into the body sheet metal 20 to make it fit with the body sheet metal 20 to achieve fixation.

[0092] In some possible implementations, the sleeve 10 is made of PDM material.

[0093] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A sleeve, characterized in that, The sleeve has a hollow structure, and the sleeve includes: A receiving cavity for housing external cables; A sheet metal receiving part, the sheet metal receiving part including a first opening and a first bottom wall, the first bottom wall being disposed opposite to the first opening, the first opening being used to allow external body sheet metal to enter the sheet metal receiving part; A limiting structure is provided on the first bottom wall. The limiting structure includes a first protrusion, which, together with the first bottom wall, defines a first recess. The first recess is used to engage with external body sheet metal to confine the external body sheet metal within the sheet metal receiving portion.

2. The sleeve as described in claim 1, characterized in that, Along the first direction, the sheet metal receiving portion includes a first sidewall and a second sidewall spaced apart to form the first opening. Along the first direction, the two ends of the first bottom wall are respectively connected to the first sidewall and the second sidewall to form the sheet metal receiving portion.

3. The sleeve as described in claim 1, characterized in that, The sheet metal receiving portion includes a third sidewall. Along the second direction, the third sidewall is connected to one end of the first bottom wall, and the first protrusion is connected to the other end of the first bottom wall. Along the second direction, the third sidewall and the first protrusion are spaced apart. The third sidewall is used to contact the external body sheet metal. The second direction is perpendicular to the first direction.

4. The sleeve as described in claim 1, characterized in that, The limiting structure includes a first outer wall and a second outer wall connected to form the first protrusion, and the first bottom wall, the first outer wall and the second outer wall are connected in sequence. The limiting structure also includes a third outer wall, and the first outer wall, the second outer wall and the third outer wall are connected in sequence to form a second recess, which is used to prevent contact with the external body sheet metal.

5. The sleeve as described in claim 2, characterized in that, The sleeve includes a pressing part connected to the sheet metal receiving part. Along the second direction, the pressing part and the sheet metal receiving part are located on opposite sides. Along the third direction, the two ends of the pressing part extend beyond the two ends of the limiting structure. The pressing part includes a first arc surface for external operators to press. The third direction is perpendicular to the first direction.

6. The sleeve as described in claim 1, characterized in that, The sleeve includes a tapered section, one end of which is connected to the sheet metal receiving portion, and the cross-sectional area of ​​the tapered section gradually decreases in the direction away from the sheet metal receiving portion.

7. The sleeve as described in claim 6, characterized in that, The sleeve includes a thickened section, and the other end of the tapered section is connected to the thickened section. The cross-sectional area of ​​the thickened section is larger than the cross-sectional area of ​​the other end of the tapered section.

8. The sleeve as described in claim 1, characterized in that, The sleeve is an elastic element.

9. A fixing component, characterized in that, The fixing component includes: The sleeve as described in any one of claims 1 to 8; The body sheet metal includes a second protrusion, which enters the sheet metal receiving portion through the first opening. The second protrusion engages with the first recess of the limiting structure, and the second protrusion fits against the first bottom wall of the limiting structure to confine the body sheet metal within the sheet metal receiving portion. A cable is disposed in the receiving cavity of the sleeve, and both ends of the cable extend out of the sleeve.

10. The fixing component as claimed in claim 9, characterized in that, The body sheet metal includes a first wall, a second wall, and a third wall connected in sequence to form the second protrusion; wherein, The first wall contacts the third side wall of the sheet metal receiving portion; The second wall is attached to the first bottom wall; The third wall includes an arc, and the third wall is in contact with the first outer wall of the limiting structure. The second and third outer walls of the limiting structure are not in contact with the third wall.

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