Wireless location device protection apparatus

Abstract

The utility model discloses a wireless positioning equipment protection device, this wireless positioning equipment protection device includes: protection element, including: first protection element, including first body, internal space and opening part, the first body is enclosed to define the internal space for accommodating wireless positioning equipment, the first body axial one side is airtight, the other side of first body axial forms the opening part for the wireless positioning equipment and is put into, the opening part along the axial direction of first body with internal space is through, second protection element is used to close opening part to close internal space, wherein, the outer periphery between second protection element and the inner periphery of opening part forms the clamping fixed. The utility model discloses through clamping fixed mode replaces traditional screw rotation locking structure, has simplified wireless positioning equipment's installation and dismounting operation, has shortened operation time, has promoted the use convenience.

Description

Technical Field

[0001] This utility model relates to the field of tracking and positioning equipment technology, and in particular to a protective device for wireless positioning equipment. Background Technology

[0002] With the widespread use of smart tracking devices, AirTags, as commonly used item tracking tools, have seen their accompanying protective cases become indispensable accessories for users' daily use. These cases primarily protect AirTags from drops and scratches, and facilitate portability. Currently, most AirTag protective cases on the market use a screw-on, rotating method to secure the AirTag. This installation structure presents significant operational inconveniences in actual use. Specifically, when installing the AirTag, users need to place the AirTag inside the lower case, align the upper case with the lower case, and rotate it multiple times until the upper and lower cases are fully locked together by the threads. The entire installation process is time-consuming and cumbersome, resulting in a poor overall user experience. Therefore, there is an urgent need for an AirTag protective case structure that is easy to install and operate, addressing the shortcomings of existing technology. Utility Model Content

[0003] The present invention provides a wireless positioning device protection device, which aims to solve the problem of cumbersome and inconvenient installation and operation of existing AirTag protective cases.

[0004] In a first aspect, this utility model provides a wireless positioning device protection device, comprising:

[0005] The first protective element includes a first body, an internal space, and an opening. The first body is enclosed to define the internal space for accommodating a wireless positioning device. One side of the first body is closed along its axial direction, and the other side of the first body forms the opening for inserting the wireless positioning device. The opening communicates with the internal space along the axial direction of the first body.

[0006] The second protective element is used to close the opening to seal the internal space;

[0007] The outer periphery of the second protective element is locked and fixed to the inner periphery of the opening.

[0008] Furthermore, one of the outer periphery of the second protective element and the inner periphery of the opening is provided with at least a first engaging portion, and the other is provided with a second engaging portion, wherein the first engaging portion and the second engaging portion are engaged and fixed.

[0009] Furthermore, the first engaging portion is an engaging groove formed by recessing outward from the inner periphery of the opening along the radial direction of the first protective element, and the second engaging portion is an engaging boss formed by protruding outward from the outer periphery of the second protective element along the radial direction of the second protective element, the engaging boss being embedded in the engaging groove.

[0010] Furthermore, the engaging groove is an annular groove surrounding the inner periphery of the opening, and the engaging boss is an annular boss surrounding the outer periphery of the second protective element, the annular boss being embedded in the annular groove;

[0011] The radial width of the annular boss is L1, and the width of the opening is L2, wherein 15% ≤ L1 / L2 ≤ 85%.

[0012] Furthermore, the engaging groove is an arc-shaped groove extending circumferentially along the inner periphery of the opening, and the engaging boss is an arc-shaped boss extending circumferentially along the outer periphery of the second protective element, the arc-shaped boss being embedded in the arc-shaped groove.

[0013] Furthermore, the second engaging portion is an annular step surrounding the outer periphery of the second protective element. The annular step includes a first step surface and a second step surface. The first step surface is arranged along the axial direction of the second protective element, and the second step surface is arranged along the radial direction of the second protective element. The second step surface is perpendicularly connected to the side of the first step surface near the internal space. The first step surface is in close contact with the inner periphery of the opening, and the second step surface is located in the internal space and in close contact with the top inner wall of the first protective element.

[0014] When the wireless positioning device is housed in the internal space, the upper surface of the wireless positioning device abuts against the lower surface of the second protective element to press the second stepped surface against the top inner wall of the first protective element.

[0015] Furthermore, both the first and second engaging portions are provided in at least one pair. The pair of first engaging portions are radially symmetrically distributed along one of the outer periphery of the second protective element and the inner periphery of the opening. Similarly, the pair of second engaging portions are radially symmetrically distributed along the other of the outer periphery of the second protective element and the inner periphery of the opening. Each pair of first engaging portions is respectively engaged and fixed with one pair of second engaging portions; or...

[0016] Both the first engaging portion and the second engaging portion are provided in multiple ways. The multiple first engaging portions are evenly distributed circumferentially along one of the outer periphery of the second protective element and the inner periphery of the opening. The multiple second engaging portions are evenly distributed circumferentially along the other of the outer periphery of the second protective element and the inner periphery of the opening. The multiple first engaging portions are respectively engaged and fixed with the multiple second engaging portions one by one.

[0017] Furthermore, the periphery of the first body converges towards its center to form the opening; or,

[0018] The opening includes a skirt and an opening. The skirt is arranged around the periphery of the first body. The diameter of the skirt is slightly larger than the diameter of the first body. The open area surrounded by the skirt is the opening.

[0019] Furthermore, the first protective element and / or the second protective element are provided with attachment elements;

[0020] The first protective element further includes a first attachment portion, which is disposed radially along the edge of the first body and has a first hanging hole. The second protective element includes a second body and a second attachment portion, which is disposed radially along the edge of the second body and has a second hanging hole. The first attachment portion and the second attachment portion are axially aligned so that the first hanging hole and the second hanging hole coincide.

[0021] The first attachment portion is recessed along the axial direction of the first protective element to form a positioning receiving groove, the positioning receiving groove communicating with the internal space along the radial direction of the first protective element, and the second attachment portion is received in the positioning receiving groove.

[0022] A first arc-shaped connecting wall is formed at the transition connection between the inner periphery of the opening and the positioning receiving groove, and a second arc-shaped connecting wall is formed at the transition connection between the outer periphery of the second body and the second attachment. The arc curvature of the first arc-shaped connecting wall matches the arc curvature of the second arc-shaped connecting wall so that the first arc-shaped connecting wall and the second arc-shaped connecting wall are in close contact.

[0023] Furthermore, the curvature of the arcuate connecting wall and the second arcuate connecting wall is 5%-80%; and / or,

[0024] The center of the first hanging hole and the center of the first body define a first axis; the outer edge of the first attachment portion and the outer edge of the first body define a common tangent; the point of tangency of the first body on the common tangent is defined as a reference point; and the line connecting the reference point and any point on the outer edge of the first attachment portion is defined as a first connecting line; wherein the included angle between the first connecting line and the first axis ranges from 18° to 72°; and / or,

[0025] The first body and the second body have their central axes coincident and are both radially symmetrical about the central axis; and / or,

[0026] The first protective element and / or the second protective element are flexible structures.

[0027] This utility model provides a protective device for a wireless positioning device, comprising a first protective element and a second protective element. The first protective element has a first body, an internal space, and an opening. The first body encloses the internal space for accommodating the wireless positioning device, with one axial side being a sealed structure and the other axial side forming an opening for inserting the wireless positioning device. The opening communicates with the internal space along the axial direction of the first body. The second protective element closes the opening to seal the internal space, and a locking mechanism is formed between the outer periphery of the second protective element and the inner periphery of the opening. This utility model replaces the traditional threaded rotation locking structure with a locking mechanism, simplifying the installation and disassembly of the wireless positioning device, shortening the operation time, and improving ease of use. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 An exploded view of the wireless positioning device protection device according to an embodiment of this utility model is shown.

[0030] Figure 2 A schematic diagram of the wireless positioning device protection device according to an embodiment of this utility model is shown;

[0031] Figure 3 A schematic diagram of the second protective element of the wireless positioning device protection device according to an embodiment of the present invention is shown;

[0032] Figure 4 A schematic diagram of the first protective element of the wireless positioning device protection device according to an embodiment of the present invention is shown;

[0033] Figure 5 A cross-sectional schematic diagram of the wireless positioning device protection device according to an embodiment of the present invention is shown;

[0034] Figure 6a and 6b Showing Figure 5 Enlarged view of part A;

[0035] Figure 7 This invention presents a front view schematic diagram of a wireless positioning device protection device according to an embodiment of the present invention;

[0036] Figure 8 An exploded view of another embodiment of the wireless positioning device protection device of this utility model is shown;

[0037] Figure 9 A schematic diagram of another embodiment of the wireless positioning device protection device of this utility model is shown;

[0038] Figure 10 A cross-sectional schematic diagram of a wireless positioning device protection device according to another embodiment of the present invention is shown;

[0039] Figure 11 Showing Figure 10 Enlarged view of part B;

[0040] Figure label:

[0041] 1. First protective element; 11. First body; 12. Internal space; 13. Opening; 131. Skirt; 132. Opening; 133. Inner periphery; 134. Annular groove; 14. First attachment part; 141. First hanging hole; 142. Positioning receiving groove; 143. First arc-shaped connecting wall; 2. Second protective element; 21. Second body; 22. Second attachment part; 221. Second hanging hole; 222. Second arc-shaped connecting wall; 23. Outer periphery; 231. Annular boss; 232. Annular step; 2321. First step surface; 2322. Second step surface; 3. Wireless positioning device. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0043] The directional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for explanation and understanding of this invention, and not for limiting it. Furthermore, in the accompanying drawings, structures that are similar or identical are indicated by the same reference numerals.

[0044] As a widely used wireless positioning device, the AirTag's protective case is a crucial accessory for ensuring the device's integrity and portability. Currently, most AirTag protective cases on the market use a screw-on locking design for the upper and lower shells. Users must precisely align the upper and lower shells during installation and then rotate them multiple times to lock them in place. Similarly, removing the AirTag requires rotating it in the opposite direction multiple times to unlock it. This entire process is cumbersome and time-consuming, causing significant inconvenience for users in daily use. There is an urgent need to improve the installation method to enhance ease of operation.

[0045] Therefore, this utility model provides a protective device for wireless positioning equipment, which replaces the traditional threaded rotation locking structure with a clamping and fixing method, simplifying the installation and disassembly of wireless positioning equipment, shortening the operation time, and improving the ease of use.

[0046] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0047] Please see Figures 1-11 This utility model embodiment illustrates a protective device for a wireless positioning device 3, comprising: a first protective element 1 and a second protective element 2. The first protective element 1 includes a first body 11, an internal space 12, and an opening 13. The first body 11 encloses and defines the internal space 12 for accommodating the wireless positioning device 3. One axial side of the first body 11 is sealed, and the other axial side of the first body 11 forms the opening 13 for the wireless positioning device 3 to be inserted. The opening 13 communicates with the internal space 12 along the axial direction of the first body 11. The second protective element 2 is used to close the opening 13 to seal the internal space 12. The outer periphery 23 of the second protective element 2 is locked and fixed to the inner periphery 133 of the opening 13.

[0048] Specifically, the first protective element 1, serving as the main load-bearing and protective structure of the wireless positioning device 3, includes a first body 11, an internal space 12, and an opening 13. The first body 11 encloses and defines the internal space 12 for accommodating the wireless positioning device 3. Specifically, the structural form of the first body 11 can be flexibly configured according to the shape of the wireless positioning device 3. For example, when the wireless positioning device 3 is circular, the first body 11 can be cylindrical to form a cylindrical or elliptical internal space 12. When the wireless positioning device 3 is square, the first body 11 can be square cylindrical to form a rectangular internal space 12. Furthermore, the inner wall contour of the first body 11 matches the outer periphery contour of the wireless positioning device 3 to ensure stability after placement. One axial side of the first body 11 is sealed. This sealed side can be integrally formed with the first body 11 to form a complete protective surface. Its specific form can be planar, arc-shaped, or a shape that fits the corresponding end face of the wireless positioning device 3. An opening 13 is formed on the other side of the first body 11 along its axial direction for inserting the wireless positioning device 3. The opening 13 communicates with the internal space 12 along the axial direction of the first body 11. The cross-sectional shape of the opening 13 is consistent with the cross-sectional shape of the internal space 12, and its size can be slightly larger than the corresponding size of the wireless positioning device 3 to facilitate the insertion of the wireless positioning device 3. Alternatively, it can be slightly smaller than the corresponding size of the wireless positioning device 3, and the wireless positioning device 3 can also be inserted smoothly by utilizing the deformation of the flexible first protective element 1. Secondly, the second protective element 2 is used to close the opening 13 to seal the internal space 12. The overall shape of the second protective element 2 matches the shape of the opening 13. For example, when the opening 13 is circular, the second protective element 2 can be a circular sheet structure; when the opening 13 is square, the second protective element 2 can be a square sheet structure. The thickness of the second protective element 2 can be set according to the protection requirements to ensure the sealing effect on the internal space 12 and the structural strength of the element itself. The first protective element 1 and the second protective element 2 are connected by a clamping and fixing method, that is, the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13 are clamped and fixed. The specific implementation of the clamping and fixing can be listed in various ways. For example, an annular protrusion is provided on the outer periphery 23 of the second protective element 2, and an annular groove 134 is provided on the inner periphery 133 of the opening 13. The annular protrusion and the annular groove 134 are fitted together to form a clamping and fixing. Alternatively, the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13 are interference-fitted to form a clamping and fixing. Alternatively, an elastic claw is provided on the inner periphery 133 of the opening 13, and a corresponding slot is provided on the outer periphery 23 of the second protective element 2. The elastic claw is inserted into the slot to form a clamping and fixing. Alternatively, multiple spaced protrusions are provided on the outer periphery 23 of the second protective element 2, and a corresponding pit is provided on the inner periphery 133 of the opening 13. The protrusions are embedded in the pits to form a clamping and fixing.

[0049] Therefore, through the above structural design, the protective device for the wireless positioning device 3 in this embodiment can solve the technical problem of cumbersome and inconvenient operation caused by the threaded rotation locking installation method of the protective sleeve of the wireless positioning device 3 in the prior art. Because this device uses the locking and fixing cooperation between the second protective element 2 and the opening 13 of the first protective element 1, there is no need for multi-turn rotation. Simply align the second protective element 2 with the opening 13 and apply a certain pressure to complete the closure and fixing. Disassembly only requires applying a reverse force to separate, making the operation simple and quick. In this way, the installation and disassembly process of the wireless positioning device 3 is simplified, improving the user's convenience. At the same time, the locking and fixing method can quickly seal the internal space 12, ensuring stable protection of the wireless positioning device 3 and avoiding the problem of poor user experience caused by complicated operation.

[0050] In one embodiment, one of the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13 is provided with at least one first engaging portion, and the other is provided with a second engaging portion. The first engaging portion and the second engaging portion engage and fix. Specifically, the first engaging portion and the second engaging portion are key structures for achieving a tight fixation. The first engaging portion can be provided on the outer periphery 23 of the second protective element 2 or the inner periphery 133 of the opening 13, and the second engaging portion is correspondingly provided on the other. The number of first engaging portions and second engaging portions is at least one set. Specifically, the structural form of the first engaging portion can be listed as a protrusion, a bump, a claw, a groove, or a recess, etc., and the second engaging portion is a structure adapted to the first engaging portion. For example, when the first engaging portion is a protrusion, the second engaging portion can be a corresponding groove; when the first engaging portion is an elastic claw, the second engaging portion can be a corresponding hole. First, if the first engaging portion is located on the outer periphery 23 of the second protective element 2, it can extend circumferentially along the outer periphery 23 or be spaced out to engage with the second engaging portion on the inner periphery 133 of the opening 13. If the first engaging portion is located on the inner periphery 133 of the opening 13, it can be arranged axially or circumferentially along the inner periphery 133 to match the second engaging portion on the outer periphery 23 of the second protective element 2. Second, the first engaging portion and the second engaging portion achieve the connection between the second protective element 2 and the opening 13 through engaging and fixing. During installation, the second protective element 2 is aligned with the opening 13, and the first engaging portion and the second engaging portion are brought into contact and pressure is applied to complete the engagement. During disassembly, a reverse force is applied to separate them. In this way, by clarifying the setting method and engagement relationship of the engaging portions, the problem of insufficient engagement stability caused by unclear clamping and fixing structures is solved, ensuring the reliability and convenience of the engagement operation. At the same time, the diverse forms of engaging portions can adapt to different usage scenarios and processing requirements.

[0051] In one embodiment, both the first engaging portion and the second engaging portion are provided in at least one pair. The pair of first engaging portions are radially symmetrically distributed along one of the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13. Similarly, the pair of second engaging portions are radially symmetrically distributed along the other of the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13. Each pair of first engaging portions is respectively engaged and fixed to the pair of second engaging portions. Specifically, the pair of first engaging portions and the pair of second engaging portions are radially symmetrically distributed. The pair of first engaging portions may be disposed on the outer periphery 23 of the second protective element 2, arranged opposite each other along its diameter, or disposed on the inner periphery 133 of the opening 13, also arranged opposite each other along its diameter. The pair of second engaging portions are correspondingly disposed on the other, and their positions correspond one-to-one with the first engaging portions. Specifically, the structure of the first and second engaging parts can be a combination of protrusions and grooves. For example, two cylindrical protrusions can be set radially symmetrically on the outer periphery 23 of the second protective element 2, and two cylindrical grooves can be set at corresponding positions on the inner periphery 133 of the opening 13. Alternatively, a combination of claws and slots can be used, with two elastic claws radially symmetrically set on the inner periphery 133 of the opening 13, and two slots correspondingly set on the outer periphery 23 of the second protective element 2. First, the radially symmetrical distribution ensures that the engaging force is evenly distributed in the circumferential direction, avoiding misalignment caused by unilateral force. Second, during installation, simply aligning a pair of first engaging parts of the second protective element 2 with a pair of second engaging parts of the opening 13 and applying pressure completes the engagement. No deliberate alignment is required during operation, improving installation efficiency. Thus, the symmetrically distributed engaging part design solves the problem of unstable fixation caused by uneven engagement part distribution, enhances the connection stability between the second protective element 2 and the opening 13, simplifies the alignment operation during installation, and improves ease of use.

[0052] In one embodiment, multiple first and second engaging portions are provided. The multiple first engaging portions are evenly distributed circumferentially along one of the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13. The multiple second engaging portions are evenly distributed circumferentially along the other of the outer periphery 23 of the second protective element 2 and the inner periphery 133 of the opening 13. Each of the multiple first engaging portions engages and is fixed to one of the multiple second engaging portions in a one-to-one correspondence. Specifically, the multiple first engaging portions and the multiple second engaging portions are evenly distributed circumferentially. The number of the multiple first engaging portions can be set to 3, 4, or more as needed, and they are distributed at equal angular intervals along the outer periphery 23 of the second protective element 2 or the inner periphery 133 of the opening 13. The multiple second engaging portions are of the same number and are positioned one-to-one on the other. Specifically, the structures of the first and second engaging parts can take various forms. For example, multiple first engaging parts can be wedge-shaped protrusions evenly distributed circumferentially along the outer periphery 23 of the second protective element 2, and multiple second engaging parts can be wedge-shaped grooves at corresponding positions on the inner periphery 133 of the opening 13. The wedge structure can enhance the anti-detachment effect after engagement. Alternatively, a combination of multiple hemispherical protrusions and hemispherical recesses can be used, evenly distributed circumferentially to achieve multi-point engagement. First, the evenly distributed circumferential engaging parts make the force distribution between the second protective element 2 and the opening 13 more balanced, avoiding local stress concentration. Second, during installation, multiple engaging parts contact and engage simultaneously, improving the overall connection strength; during disassembly, the evenly distributed force points make separation easier. Furthermore, a larger number of engaging points can enhance the impact resistance of the structure and prevent accidental detachment. This design solves the problem of insufficient connection strength caused by insufficient number or uneven distribution of locking parts, improves the overall stability of the protection device, and makes the operation smoother by making the multi-point uniform locking more comfortable and enhancing the user experience.

[0053] Reference Figures 1-7In one embodiment, the first engaging portion is an engaging groove formed radially outward from the inner periphery 133 of the opening 13 of the first protective element 1, and the second engaging portion is an engaging boss formed radially outward from the outer periphery 23 of the second protective element 2, the engaging boss being embedded in the engaging groove. Specifically, the first engaging portion is an engaging groove formed radially outward from the inner periphery 133 of the opening 13 of the first protective element 1, and the cross-sectional shape of the groove can be rectangular, trapezoidal, arc-shaped, or other suitable shapes to provide accommodating space for the second engaging portion; the second engaging portion is an engaging boss formed radially outward from the outer periphery of the second protective element 2, the shape of the boss matching the groove to ensure stable embedding within the groove. Specifically, the depth of the engaging groove and the height of the engaging boss can be set according to connection requirements to balance connection strength and ease of operation. First, the engaging groove is integrally formed with the inner periphery 133 of the opening 13, and can be continuously or intermittently distributed along the circumference of the inner periphery 133. The engaging boss is integrally formed with the outer periphery 23 of the second protective element 2, and its position corresponds one-to-one with the engaging groove. Second, when installing the second protective element 2, the engaging boss is aligned with the engaging groove and axial pressure is applied, and the boss can be embedded in the groove to form a fixed position. When disassembling, a reverse force is applied to disengage the boss from the groove. In this way, the specific form of engaging fixation is clarified through the engagement structure of the boss and the groove, solving the problem of fit stability caused by the unclear engagement structure, ensuring reliable connection and simple operation. At the same time, the convex-concave fit structure is easy to process and manufacture, and adapts to the needs of mass production.

[0054] Referring to 6a and 6b, in this embodiment, the engaging groove is an annular groove 134 surrounding the inner periphery 133 of the opening 13, and the engaging boss is an annular boss 231 surrounding the outer periphery 23 of the second protective element 2. The annular boss 231 is embedded in the annular groove 134. Specifically, the engaging groove is an annular groove 134, which surrounds the inner periphery 133 of the opening 13 and extends continuously along the circumferential direction of the inner periphery 133 to form a closed ring. The cross-section of the groove can be U-shaped, V-shaped, or rectangular, etc.; the engaging boss is an annular boss 231, which surrounds the outer periphery 23 of the second protective element 2 and also extends continuously along the circumferential direction of the outer periphery 23 to form a closed ring. The cross-sectional shape of the boss is adapted to the annular groove 134. Specifically, the annular groove 134 and the inner periphery 133 of the opening 13 are coaxially arranged, and the annular boss 231 and the second protective element 2 are coaxially arranged, ensuring that the two can be quickly aligned during installation. First, the width and depth of the annular groove 134 can be adjusted according to the thickness of the second protective element 2 and the required connection strength, while the width and height of the annular boss 231 match the groove. Second, during installation, simply align the annular boss 231 of the second protective element 2 with the annular groove 134 of the opening 13 and press axially to achieve a uniform engagement around the entire circumference; during disassembly, applying axial tension will disengage the boss from the groove. Thus, the annular convex-concave fit creates a fully enclosed engagement structure between the second protective element 2 and the opening 13, solving the problem of uneven force caused by partial engagement, enhancing the overall sealing and stability of the connection, and the full-circumference engagement design eliminates the need for deliberate alignment during installation, further improving ease of operation.

[0055] Reference Figure 6aFurthermore, the radial width of the annular boss 231 is L1, and the width of the opening 13 is L2, wherein 15% ≤ L1 / L2 ≤ 85%. Specifically, the radial width of the annular boss 231 is L1, and the width of the opening 13 is L2, wherein the ratio of L1 to L2 is between 15% and 85%. Specifically, this ratio range can be adjusted according to the overall size, material, and usage scenario of the protective device. For example, when the device size is small, a relatively small ratio can be selected to ensure a lightweight structure; when the connection strength requirement is high, a relatively large ratio can be selected to increase the contact area. First, if L1 is too small, the structural strength of the annular boss 231 may be insufficient, making it prone to deformation during repeated disassembly and assembly; if L1 is too large, it may lead to a decrease in the structural strength of the opening 13 or increase the difficulty of disassembly. Second, the annular boss 231 and the opening 13 within this ratio range can ensure that the boss has sufficient structural strength to achieve stable engagement, while avoiding operational difficulties caused by an excessively wide boss. This proportional design solves the problem of insufficient structural strength or inconvenient operation caused by improper width ratio between the annular boss 231 and the opening 13, ensuring good disassembly and assembly feel while guaranteeing connection reliability, and adapting to different usage needs.

[0056] Reference Figure 4In this embodiment, the opening 13 includes a skirt 131 and an opening 132. The skirt 131 is arranged around the periphery of the first body 11, and the diameter of the skirt 131 is slightly larger than the diameter of the first body 11. The open area surrounded by the skirt 131 is the opening 132. Specifically, the opening 13 includes a skirt 131 and an opening 132. The skirt 131 is arranged around the periphery of the first body 11 and is integrally formed with the first body 11 or fixed by a connecting structure. The diameter of the skirt 131 is slightly larger than the diameter of the first body 11, forming an outwardly expanding edge structure. Its function is to enhance the structural strength of the opening 13 and provide positioning and guidance for the installation of the second protective element 2. The open area surrounded by the skirt 131 is the opening 132. The shape of the opening 132 is consistent with the shape of the internal space 12 enclosed by the first body 11, and it is used for the wireless positioning device 3 to be inserted or removed. Specifically, the axial length of the skirt 131 can be set as needed, and its inner wall can remain smooth or have a structure that mates with the second protective element 2; the size of the opening 132 is slightly larger than the maximum size of the wireless positioning device 3 to ensure that the device can pass through smoothly. First, the connection between the skirt 131 and the first body 11 can be rounded to reduce stress concentration; second, when the second protective element 2 is installed, the inner wall of the skirt 131 can guide the second protective element 2 to be precisely aligned, so that the outer periphery 23 of the second protective element 2 can smoothly mate with the inner periphery 133 of the opening 13. Thus, through the design of the skirt 131, the problems of insufficient edge strength of the opening 13 or difficulty in aligning the second protective element 2 are solved, the overall structural stability of the opening 13 is enhanced, and the installation operation of the second protective element 2 is simplified, improving assembly efficiency.

[0057] In another embodiment, the engaging groove is an arc-shaped groove extending circumferentially along the inner periphery 133 of the opening 13, and the engaging boss is an arc-shaped boss extending circumferentially along the outer periphery 23 of the second protective element 2. The arc-shaped boss is embedded in the arc-shaped groove. Specifically, the engaging groove is an arc-shaped groove that extends circumferentially along the inner periphery 133 of the opening 13. The extension angle can be set according to requirements, such as 30 degrees, 60 degrees, 90 degrees, 180 degrees, or other angles. The cross-sectional shape of the groove can be arc-shaped, trapezoidal, etc.; the engaging boss is an arc-shaped boss that extends circumferentially along the outer periphery 23 of the second protective element 2. The extension angle is consistent with the arc-shaped groove, and the shape is adapted to the groove. Specifically, the arc-shaped groove and the arc-shaped boss can be set as one or more sets. When there are multiple sets, each set is distributed circumferentially at intervals. First, the length and depth of the arc-shaped groove can be adjusted according to the required engaging strength, and the length and height of the arc-shaped boss are matched with the groove. Secondly, during installation, the arc-shaped boss is aligned with the arc-shaped groove and pressure is applied. Once the boss is embedded in the groove, a partial locking mechanism is formed. During disassembly, a reverse force is applied to separate the two. Furthermore, the arc-shaped structure can disperse stress under load, reducing localized wear. This design solves the problems of complex processing or excessive material consumption in full-circumference locking structures. While ensuring sufficient connection strength, it simplifies the processing technology, reduces production costs, and the partial locking mechanism allows for more concentrated force during assembly and disassembly, making operation easier.

[0058] Reference Figures 8-11In one embodiment, the second engaging portion is an annular step 232 surrounding the outer periphery 23 of the second protective element 2. The annular step 232 includes a first step surface 2321 and a second step surface 2322. The first step surface 2321 is arranged along the axial direction of the second protective element 2, and the second step surface 2322 is arranged along the radial direction of the second protective element 2. The second step surface 2322 is perpendicularly connected to the side of the first step surface 2321 near the internal space 12. The first step surface 2321 is in close contact with the inner periphery 133 of the opening 13, and the second step surface 2322 is located in the internal space 12 and is in close contact with the top inner sidewall of the first protective element 1. Specifically, the second engaging portion is an annular step 232, which is arranged around the outer periphery 23 of the second protective element 2 and is integrally formed with the second protective element 2, forming a closed ring structure. The annular step 232 includes a first step surface 2321 and a second step surface 2322. The first step surface 2321 is arranged along the axial direction of the second protective element 2, serving as the outer wall of the annular step 232, and its height can be adjusted according to the thickness of the second protective element 2 and the fitting requirements. The second step surface 2322 is arranged along the radial direction of the second protective element 2, and is vertically connected to the side of the first step surface 2321 near the internal space 12, forming the inner support surface of the annular step 232. Specifically, when the second protective element 2 closes the opening 13, the first step surface 2321 is in close contact with the inner periphery 133 of the opening 13, and the two can form a surface contact fit to ensure radial positioning. The second step surface 2322 is located in the internal space 12 and is in close contact with the top inner wall of the first protective element 1, achieving axial positioning. First, the outer periphery of the first step surface 2321 matches the inner periphery of the opening 13, ensuring a tight fit. Second, the radial width of the second step surface 2322 can be adjusted according to the structure of the inner sidewall of the top of the first protective element 1 to achieve stable support. Thus, through the double-step design of the annular step 232, the multi-directional fit between the second protective element 2 and the opening 13 is clearly defined, solving the problem of insufficient positioning with a single engaging surface. This allows the second protective element 2 to be effectively fixed both radially and axially, improving the overall stability of the connection. Simultaneously, the surface contact fit reduces local stress concentration and extends the service life of the structure.

[0059] In this embodiment, when the wireless positioning device 3 is housed in the internal space 12, the upper surface of the wireless positioning device 3 abuts against the lower surface of the second protective element 2 to press the second step surface 2322 against the inner top wall of the first protective element 1. Specifically, when the wireless positioning device 3 is housed in the internal space 12, its position corresponds to the lower surface of the second protective element 2, and the upper surface of the wireless positioning device 3 abuts against the lower surface of the second protective element 2. Specifically, after the wireless positioning device 3 is placed into the internal space 12 of the first protective element 1, its axial height is adapted to the height of the internal space 12, so that the top of the wireless positioning device 3 can make contact with the lower surface of the second protective element 2. First, when the second protective element 2 closes the opening 13 and engages with the opening 13 through the annular step 232, the wireless positioning device 3 generates an upward pushing force on the second protective element 2; second, this pushing force presses the second step surface 2322 against the inner top wall of the first protective element 1, further enhancing the tightness of the fit between the two and preventing loosening caused by gaps. Therefore, by utilizing the structure of the wireless positioning device 3 itself to form an auxiliary clamping effect, the problem of loose fit that may exist if only the locking structure is relied upon is solved, making the connection between the second protective element 2 and the first protective element 1 more reliable. At the same time, no additional clamping components are required, simplifying the overall structural design and improving the integration and stability of the device.

[0060] Reference Figure 8 In this embodiment, the opening 13 is a window formed by the periphery of the first body 11 converging towards its center. Specifically, the opening 13 is formed by the periphery of the first body 11 converging towards its center. This convergence structure is achieved through a specific construction method of the periphery of the first body 11, such as a curved transition convergence, using a smooth curved contour to allow the periphery to naturally converge towards the center. Specifically, the opening 13 formed by this convergence has adaptive guiding characteristics, and its convergence angle varies within a certain range to adapt to wireless positioning devices 3 of different sizes. When the device is placed, the convergence periphery structure can automatically guide the device to slide into the center position of the internal space 12. At the same time, this structure makes the edge of the opening 13 form a reinforced annular support area. After the device is placed, the convergence structure of the periphery fits tightly against the outer periphery of the device, achieving a stable enclosure and significantly improving the structural strength of the first body 11 at the opening 13 position. Thus, the technical problems of the opening 13 of traditional protective devices lacking self-centering function and insufficient edge strength can be solved. The special construction of the periphery convergence simultaneously realizes the guiding function of device installation and structural reinforcement. This embodiment makes the installation process of the wireless positioning device 3 more convenient and accurate, effectively preventing assembly difficulties caused by device misalignment. At the same time, the convergence structure enhances the deformation resistance of the opening 13 edge, extends the service life of the protective device, and optimizes the overall aesthetic appearance of the product through the streamlined convergence contour.

[0061] In one embodiment, the first protective element 1 and / or the second protective element 2 are provided with attachment elements. Specifically, the attachment elements are disposed on the first protective element 1 and / or the second protective element 2, and their function is to provide additional carrying or fixing methods for the protective device, making it convenient for users to associate the device with other items. Specifically, the attachment elements can take various forms, such as hanging holes, hooks, buckles, magnetic structures, adhesive layers, etc. If disposed on the first protective element 1, it can be located on the outer surface, outer perimeter 23, or other suitable positions of its sealed side; if disposed on the second protective element 2, it can be located on its outer surface or edge away from the internal space 12. First, when only the first protective element 1 is provided with attachment elements, the entire device can be suspended through this element; when only the second protective element 2 is provided with attachment elements, the carrying function can also be achieved; when both are provided with attachment elements, the connection reliability can be enhanced or multi-functional carrying can be achieved through cooperation. Second, the attachment elements can be integrally formed with the protective elements or connected in a detachable manner to adapt to different usage scenarios. By adding attachment elements, the problem of limited carrying options for the protective device is solved, improving its portability and applicability and meeting diverse carrying needs of users.

[0062] Reference Figure 3 and Figure 4In this embodiment, the first protective element 1 further includes a first attachment portion 14, which is radially disposed on the edge of the first body 11. The first attachment portion 14 has a first hanging hole 141. The second protective element 2 includes a second body 21 and a second attachment portion 22, which is radially disposed on the edge of the second body 21. The second attachment portion 22 has a second hanging hole 221. The first attachment portion 14 and the second attachment portion 22 are axially aligned so that the first hanging hole 141 coincides with the second hanging hole 221. Specifically, the first attachment portion 14 of the first protective element 1 is radially disposed on the edge of the first body 11 and can be integrally formed or fixedly connected to the first body 11. The first attachment portion 14 has a first hanging hole 141, which can be circular, elliptical, or other regular shapes, for threading a lanyard, key chain, or other connecting component. The second protective element 2 includes a second body 21 and a second attachment portion 22. The second attachment portion 22 is radially disposed on the edge of the second body 21 and can be integrally formed or fixedly connected to the second body 21. The second attachment portion 22 has a second hanging hole 221, the shape of which is adapted to the first hanging hole 141. Specifically, when the second protective element 2 closes the opening 13, the first attachment portion 14 and the second attachment portion 22 are axially aligned, that is, they overlap in the axial direction, so that the first hanging hole 141 and the second hanging hole 221 coincide to form a through channel. The shapes of the first attachment portion 14 and the second attachment portion 22 can both be sheet-like, block-like, or other adaptable structures to ensure a close fit during alignment. The overlapping hanging hole design allows the connector to pass through both hanging holes simultaneously, keeping the first protective element 1 and the second protective element 2 relatively fixed during carrying. Therefore, by aligning the attachment part with the hanging hole, the problem of unstable connection that may have been caused by setting the hanging hole alone is solved, the overall structural coherence of the protective device is enhanced, and a more stable connection point is provided for carrying, thereby improving the reliability during carrying.

[0063] Reference Figures 2-4In this embodiment, the first attachment portion 14 is recessed along the axial direction of the first protective element 1 to form a positioning receiving groove 142. The positioning receiving groove 142 communicates with the internal space 12 along the radial direction of the first protective element 1, and the second attachment portion 22 is accommodated in the positioning receiving groove 142. Specifically, the first attachment portion 14 is recessed along the axial direction of the first protective element 1 to form a positioning receiving groove 142. The shape of the receiving groove is adapted to the shape of the second attachment portion 22, and its depth can be set according to the thickness of the second attachment portion 22. It communicates with the internal space 12 along the radial direction of the first protective element 1, providing space for the insertion of the second attachment portion 22. Specifically, when the second protective element 2 closes the opening portion 13, the second attachment portion 22 is precisely accommodated in the positioning receiving groove 142, forming a tight nested fit between the two, avoiding misalignment or gaps; at the same time, this nested structure can also make the overall appearance of the protective device flatter and reduce the inconvenience of carrying caused by protrusions. First, the inner wall of the positioning receiving groove 142 can be made into a smooth surface, or it can be provided with small protrusions and grooves to enhance the stability of the fit. Second, since the first protective element 1 is a flexible structure, when the second protective element 2 needs to be disassembled, the first attachment part 14 can be bent downwards by hand, and the flexible deformation can be used to disengage the second attachment part 22 from the positioning receiving groove 142. At this time, the first attachment part 14 and the second attachment part 22 will form an open V-shaped opening. This V-shaped structure allows the user to more easily pinch the second attachment part 22. By simply pinching the second attachment part 22 with a little force and bending it upwards, the second protective element 2 can be quickly removed from the opening 13. Through the design of the positioning receiving groove 142, not only is the problem of misalignment between the first attachment part 14 and the second attachment part 22 solved, ensuring that the hanging holes are accurately aligned and enhancing the connection stability, but also the combination of flexible structure and nested fit optimizes the disassembly operation process and greatly improves the ease of disassembly and assembly of the device.

[0064] Continue to refer to Figure 3 and Figure 4In a specific implementation, a first arc-shaped connecting wall 143 is formed at the transition connection between the inner periphery 133 of the opening 13 and the positioning receiving groove 142, and a second arc-shaped connecting wall 222 is formed at the transition connection between the outer periphery 23 of the second body 21 and the second attachment 22. The curvature of the arc surface of the first arc-shaped connecting wall 143 matches the curvature of the arc surface of the second arc-shaped connecting wall 222 so that the first arc-shaped connecting wall 143 and the second arc-shaped connecting wall 222 are in close contact. Specifically, the first arc-shaped connecting wall 143 is formed at the transition connection between the inner periphery 133 of the opening 13 and the positioning receiving groove 142. This arc-shaped wall is smoothly curved along the transition, and its arc surface is continuous and smooth; the second arc-shaped connecting wall 222 is formed at the transition connection between the outer periphery 23 of the second body 21 and the second attachment 22, and it is also smoothly curved. Specifically, the curvature of the first arc-shaped connecting wall 143 matches that of the second arc-shaped connecting wall 222. When the second attachment portion 22 is accommodated in the positioning groove 142, the two arc-shaped connecting walls can fit tightly together, forming a continuous and smooth transition surface. First, the arc-shaped connecting walls prevent right angles or sharp angles at the transition point, reducing stress concentration. Second, the curvature matching design ensures a natural transition between the two components during connection, without obvious protrusions or depressions. Furthermore, the tightly fitting arc-shaped walls also enhance the sealing of the connection between the first protective element 1 and the second protective element 2, preventing dust, moisture, etc., from entering the internal space 12 from the transition point. Through this arc-shaped connecting wall design, the stress concentration or gap problems caused by structural mismatch at the transition point are solved, improving the structural strength and appearance integrity of the device, while also enhancing the protection effect on the internal equipment.

[0065] Furthermore, the curvature of the first arc-shaped connecting wall 143 and the second arc-shaped connecting wall 222 is 5%-80%. Specifically, the first arc-shaped connecting wall 143 is formed at the transition connection between the inner periphery 133 of the opening 13 and the positioning receiving groove 142, and its curvature is designed to be adjustable within the range of 5%-80%. This arc-shaped connecting wall can adopt a continuously smooth transition curved surface structure. The second arc-shaped connecting wall 222 is correspondingly formed at the transition connection between the outer periphery 23 of the second body 21 and the second attachment portion 22. Its curvature matches that of the first arc-shaped connecting wall 143, also adopting a curvature range of 5%-80%. The curvature matching relationship between the two can be that they have exactly the same radius of curvature, or that there is a preset difference in the radius of curvature but a close fit can be achieved. Specifically, the curvature range design allows the first arc-shaped connecting wall 143 and the second arc-shaped connecting wall 222 to achieve various degrees of tightness. A smaller curvature (e.g., 5%-20%) results in a smoother transition connection, suitable for applications with low requirements for assembly clearance. A medium curvature (e.g., 20%-50%) achieves moderate tightness, balancing assembly convenience and connection stability. A larger curvature (e.g., 50%-80%) results in a tighter curved surface fit, suitable for environments with high requirements for sealing and connection strength. This solves the technical problem of assembly gaps or stress concentration at the connection points of the protective device. By optimizing the curvature matching relationship of the arc-shaped connecting walls, it ensures smooth assembly while improving the bonding strength and sealing performance of the connection points. This embodiment provides an adjustable curved surface connection scheme, which allows the protective device to flexibly select the curvature parameters of the connecting wall according to different usage requirements. While ensuring assembly accuracy, it effectively disperses the stress at the connection part, extends the service life of the product, and enhances the integrity and aesthetics of the protective device through the tight fit of the curved surface.

[0066] Reference Figure 7In this embodiment, the center of the first hanging hole 141 and the center of the first body 11 define a first axis P; the outer edge of the first attachment portion 14 and the outer edge of the first body 11 define a common tangent G; the point of tangency of the first body 11 on the common tangent G is defined as a reference point M; and the line connecting the reference point and any point on the outer edge of the first attachment portion 14 is defined as a first connecting line O. The included angle α between the first connecting line and the first axis is in the range of 18°-72°. Specifically, the center of the first hanging hole 141 and the center of the first body 11 define a first axis, which is the line connecting the hanging hole and the center of the body; the outer edge of the first attachment portion 14 and the outer edge of the first body 11 define a common tangent G, which is a straight line tangent to both outer edges simultaneously; the point of tangency of the first body 11 on the common tangent G is defined as a reference point; and the line connecting the reference point and any point on the outer edge of the first attachment portion 14 is defined as the first connecting line. Specifically, the angle formed between the first connecting line and the first axis ranges from 18° to 72°. The core function of this angle range is to limit the size of the first attachment part 14, ensuring that the attachment part is neither too large nor too small. First, if the angle is too small, it means that the radial extension dimension of the first attachment part 14 is too large, causing the attachment part to protrude excessively from the first body 11, which not only affects the overall compactness and portability of the device, but may also cause it to snag on other items during carrying. If the angle is too large, it indicates that the radial extension dimension of the first attachment part 14 is too small, which will make the structural strength of the attachment part insufficient, making it difficult to withstand the tension during suspension, and prone to breakage or damage. It will also limit the space for setting the first hanging hole 141, affecting the insertion and use of the connector. Second, the design within this angle range allows the first attachment part 14 to maintain a suitable size, which has sufficient structural strength to stably withstand the suspension tension, without excessively protruding and affecting portability, while also providing sufficient space for setting the first hanging hole 141, ensuring that the carrying function is reliably realized. By limiting the angle, the structural defects or inconvenience caused by unreasonable attachment size are solved, and the device's compactness and practicality are maintained while ensuring structural reliability and portability.

[0067] In this embodiment, the central axes of the first body 11 and the second body 21 coincide and are both radially symmetrical about the central axis. Specifically, the central axes of the first body 11 and the second body 21 coincide, meaning they are coaxially arranged in the axial direction; and both are radially symmetrical about the central axis, meaning that after rotating around the central axis by any angle, their shapes coincide with themselves. Specifically, the radially symmetrical structure of the first body 11 can be represented by a circle, a regular polygon, etc., and the shape of the second body 21 is adapted to the first body 11, also having radial symmetry. First, the coaxial arrangement ensures that when the second protective element 2 closes the opening 13, it can be precisely aligned with the first body 11, avoiding poor fit caused by eccentricity; second, the radially symmetrical structure makes the force on the device uniform in all directions, enhancing the overall structural stability, while also facilitating processing and manufacturing, reducing production difficulty. Furthermore, the symmetrical structure can also improve the aesthetic appearance of the device, meeting the user's aesthetic needs. This symmetrical design solves the problems of misalignment or uneven force between the first body 11 and the second body 21, ensuring fitting accuracy and structural stability, while simplifying the production process and improving product consistency.

[0068] In one embodiment, the first protective element 1 and / or the second protective element 2 adopt a flexible structure. The material can be silicone, rubber, flexible plastic, or other materials with elastic deformation capabilities, allowing it to deform under external force and return to its original shape after the force is removed. Specifically, if only the first protective element 1 is a flexible structure, its deformation facilitates the insertion and removal of the wireless positioning device 3 and enhances the buffer protection of the device. If only the second protective element 2 is a flexible structure, its deformation allows for a tighter engagement with the opening 13, improving connection reliability. If both are flexible structures, the advantages of both can be combined. First, the deformation capability of the flexible structure makes installation and disassembly easier, eliminating the need for precise alignment. Second, the flexible material itself has good buffering properties, absorbing external impacts and better protecting the internal wireless positioning device 3. Furthermore, the flexible structure can adapt to devices of different sizes, improving the device's versatility. By adopting a flexible structure, the problems of inconvenient operation or limited protective effect of rigid structures are solved, improving the ease of use and protective performance of the device, while also enhancing the adaptability and durability of the structure.

[0069] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A protective device for a wireless positioning equipment, characterized in that, include: The first protective element includes a first body, an internal space, and an opening. The first body is enclosed to define the internal space for accommodating a wireless positioning device. One side of the first body is closed along its axial direction, and the other side of the first body forms the opening for inserting the wireless positioning device. The opening communicates with the internal space along the axial direction of the first body. The second protective element is used to close the opening to seal the internal space; Wherein, the outer periphery of the second protective element and the inner periphery of the opening are locked together; The first protective element further includes a first attachment portion, which is disposed radially along the edge of the first body and has a first hanging hole. The second protective element includes a second body and a second attachment portion, which is disposed radially along the edge of the second body and has a second hanging hole. The first attachment portion and the second attachment portion are axially aligned so that the first hanging hole and the second hanging hole coincide. The first attachment portion is recessed along the axial direction of the first protective element to form a positioning receiving groove, the positioning receiving groove communicating with the internal space along the radial direction of the first protective element, and the second attachment portion is received in the positioning receiving groove. The first protective element and / or the second protective element are flexible structures.

2. The wireless positioning device protection device according to claim 1, characterized in that, The outer periphery of the second protective element and the inner periphery of the opening are provided with at least one first engaging portion, and the other is provided with a second engaging portion, wherein the first engaging portion and the second engaging portion are engaged and fixed.

3. The wireless positioning device protection device according to claim 2, characterized in that, The first engaging portion is an engaging groove formed by recessing outward from the inner periphery of the opening along the radial direction of the first protective element, and the second engaging portion is an engaging boss formed by protruding outward from the outer periphery of the second protective element along the radial direction of the second protective element, and the engaging boss is embedded in the engaging groove.

4. The wireless positioning device protection device according to claim 3, characterized in that, The engaging groove is an annular groove surrounding the inner periphery of the opening, and the engaging boss is an annular boss surrounding the outer periphery of the second protective element, with the annular boss embedded in the annular groove. The radial width of the annular boss is L1, and the width of the opening is L2, wherein 15% ≤ L1 / L2 ≤ 85%.

5. The wireless positioning device protection device according to claim 3, characterized in that, The engaging groove is an arc-shaped groove extending circumferentially along the inner periphery of the opening, and the engaging boss is an arc-shaped boss extending circumferentially along the outer periphery of the second protective element. The arc-shaped boss is embedded in the arc-shaped groove.

6. The wireless positioning device protection device according to claim 2, characterized in that, The second engaging portion is an annular step surrounding the outer periphery of the second protective element. The annular step includes a first step surface and a second step surface. The first step surface is arranged along the axial direction of the second protective element, and the second step surface is arranged along the radial direction of the second protective element. The second step surface is perpendicularly connected to the side of the first step surface near the internal space. The first step surface is in close contact with the inner periphery of the opening, and the second step surface is located in the internal space and in close contact with the top inner wall of the first protective element. When the wireless positioning device is housed in the internal space, the upper surface of the wireless positioning device abuts against the lower surface of the second protective element to press the second stepped surface against the top inner wall of the first protective element.

7. The wireless positioning device protection device according to claim 2, characterized in that, Both the first and second engaging portions have at least one pair. The pair of first engaging portions are radially symmetrically distributed along one of the outer periphery of the second protective element and the inner periphery of the opening. Similarly, the pair of second engaging portions are radially symmetrically distributed along the other of the outer periphery of the second protective element and the inner periphery of the opening. Each pair of first engaging portions is respectively engaged and fixed with one pair of second engaging portions. Alternatively... Both the first engaging portion and the second engaging portion are provided in multiple ways. The multiple first engaging portions are evenly distributed circumferentially along one of the outer periphery of the second protective element and the inner periphery of the opening. The multiple second engaging portions are evenly distributed circumferentially along the other of the outer periphery of the second protective element and the inner periphery of the opening. The multiple first engaging portions are respectively engaged and fixed with the multiple second engaging portions one by one.

8. The wireless positioning device protection device according to claim 1, characterized in that, The periphery of the first body converges towards its center to form the opening; or, The opening includes a skirt and an opening. The skirt is arranged around the periphery of the first body. The diameter of the skirt is slightly larger than the diameter of the first body. The open area surrounded by the skirt is the opening.

9. The wireless positioning device protection device according to claim 1, characterized in that, A first arc-shaped connecting wall is formed at the transition connection between the inner periphery of the opening and the positioning receiving groove, and a second arc-shaped connecting wall is formed at the transition connection between the outer periphery of the second body and the second attachment. The arc curvature of the first arc-shaped connecting wall matches the arc curvature of the second arc-shaped connecting wall so that the first arc-shaped connecting wall and the second arc-shaped connecting wall are in close contact.

10. The wireless positioning device protection device according to claim 9, characterized in that, The curvature of the arc-shaped connecting wall and the second arc-shaped connecting wall is 5%-80%; and / or, The center of the first hanging hole and the center of the first body define a first axis; the outer edge of the first attachment portion and the outer edge of the first body define a common tangent; the point of tangency of the first body on the common tangent is defined as a reference point; and the line connecting the reference point and any point on the outer edge of the first attachment portion is defined as a first connecting line; wherein the included angle between the first connecting line and the first axis ranges from 18° to 72°; and / or, The first body and the second body have their central axes coincide and are both radially symmetrical about the central axis.

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