Connector

Abstract

The utility model relates to a connector, and the connector comprises a first housing part which is provided with a first cavity, the first housing part is provided with a first limiting part, and the first limiting part is provided with a first inclined plane; and the crystal head is provided with a second limiting part, the second limiting part is provided with a second inclined surface, and when the crystal head is installed in the first cavity, the second inclined surface abuts against the first inclined surface. The first limiting part and the second limiting part are simple in design structure and convenient to manufacture and produce, the cost is reduced, and the market competitiveness is improved. And the first inclined surface of the first limiting part and the second inclined surface of the second limiting part can effectively limit the retreating of the crystal head through the guiding and matching of the inclined surfaces when the crystal head is mounted to the first cavity, so that the stability and the waterproof performance during connection are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a connector. BACKGROUND

[0002] In today's increasingly diverse and functional electronic products, the demand for connector products is also increasing, and the performance and structure of the connector products are becoming increasingly strict. In particular, in the design field of registered jack (RJ) waterproof connectors, designers are constantly exploring and innovating to meet market demand for waterproof performance and stable connection.

[0003] In the traditional design of the plug of the RJ waterproof connector, the crystal head may retreat, resulting in unstable connection or reduced waterproof performance, affecting the overall performance of the connector. CONTENT OF THE INVENTION

[0004] The present application provides a connector that can prevent the crystal head from retreating and improve the overall performance of the connector.

[0005] The present application provides a connector, comprising:

[0006] a first shell portion having a first cavity, the first shell portion being provided with a first limiting portion, the first limiting portion having a first inclined surface; and

[0007] a crystal head provided with a second limiting portion, the second limiting portion having a second inclined surface, the second inclined surface and the first inclined surface being in abutment when the crystal head is installed in the first cavity.

[0008] In one possible implementation, the crystal head includes a crystal and a spring, the spring includes a first pressing portion and a second pressing portion, one end of the first pressing portion is connected to the crystal, and the other end of the first pressing portion is connected to the second pressing portion; under the action of an external force, the first pressing portion drives the second pressing portion to move relative to the crystal.

[0009] The second limiting portion is provided on both sides of the second pressing portion, and the second limiting portion is connected to the first pressing portion.

[0010] In one possible implementation, the first shell portion is provided with a third limiting portion, and the third limiting portion is connected to the inner wall of the first cavity.

[0011] When the crystal head is installed in the first cavity, the third limiting portion is in abutment with the second pressing portion.

[0012] In a possible implementation, the third limiting portion has a first guide inclined surface on a side facing away from the first limiting portion, and the first guide inclined surface is in abutment with the second pressing portion.

[0013] In a possible implementation, the first shell portion is provided with a first supporting limiting portion and a second supporting limiting portion.

[0014] The first supporting limiting portion and the second supporting limiting portion are arranged opposite to each other along a radial direction of the first cavity and are respectively connected to the first cavity.

[0015] The first supporting limiting portion and the second supporting limiting portion are respectively in abutment with the crystal, and the first supporting limiting portion is arranged close to a side of the elastic sheet.

[0016] The first supporting limiting portion has a dimension along an axial direction of the first cavity that is greater than a dimension of the second supporting limiting portion along the axial direction of the first cavity.

[0017] In a possible implementation, the first supporting limiting portion and / or the second supporting limiting portion is provided with a limiting rib in abutment with the crystal.

[0018] In a possible implementation, the second supporting limiting portion is wedge-shaped to form a second guide inclined surface.

[0019] In a possible implementation, the connector further includes a second shell portion, a waterproof plug, and a cover portion.

[0020] The second shell portion is connected to the first shell portion, and the second shell portion has a second cavity in communication with the first cavity to jointly accommodate the crystal head.

[0021] The cover portion is arranged on a side of the first shell portion facing away from the crystal head, and the cover portion is detachably connected to the first shell portion.

[0022] The waterproof plug is respectively connected to the first cavity and the cover portion.

[0023] In a possible implementation, the waterproof plug is annular, and the waterproof plug is provided with a breakage along an axial direction thereof.

[0024] In a possible implementation, the connector further includes a ring shell, and a radial side wall of the ring shell is provided with at least one first protrusion and at least one clamping hook.

[0025] A radial outer side wall of the second shell portion is provided with at least one clamping groove configured to accommodate the first protrusion, and a radial outer side wall of the first shell portion is provided with at least one second protrusion in clamping engagement with the clamping hook.

[0026] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the design structure of the first limiting part and the second limiting part is simple, facilitating manufacturing and production, reducing cost and improving market competitiveness. The first inclined surface of the first limiting part and the second inclined surface of the second limiting part can effectively limit the retreat of the crystal head through the guidance and cooperation of the inclined surfaces when the crystal head is installed into the first cavity, ensuring the stability and waterproof performance during connection. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings from these drawings without any creative effort.

[0029] One or more embodiments are illustrated by way of example in the drawings that are for illustrative purposes only, and are not construed to limit the embodiments, and elements having the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute a proportional limitation.

[0030] Figure 1 A structural schematic diagram of a connector provided by the embodiment of the present application is shown in the figure;

[0031] Figure 2 An exploded schematic diagram of the connector provided by the embodiment of the present application is shown in the figure;

[0032] Figure 3 A structural schematic diagram of a crystal head provided by the embodiment of the present application is shown in the figure;

[0033] Figure 4 A structural schematic diagram of a first shell part provided by the embodiment of the present application is shown in the figure;

[0034] Figure 5 A structural schematic diagram of a connector provided by the embodiment of the present application is shown in the figure;

[0035] Figure 6 A structural schematic diagram of a connector provided by the embodiment of the present application is shown in the figure; Figure 5 A cross-sectional schematic diagram of A-A shown in the figure;

[0036] Figure 7 A cross-sectional schematic diagram of B-B shown in the figure; Figure 5 A cross-sectional schematic diagram of B-B shown in the figure;

[0037] Figure 8A structure schematic view of the first shell part provided by the embodiment of the present application is shown in the figure.

[0038] Figure 9 A structure schematic view of the second shell part provided by the embodiment of the present application is shown in the figure. Figure 8 A cross-sectional schematic view of C-C shown in the figure.

[0039] Figure 10 A structure schematic view of the second shell part provided by the embodiment of the present application is shown in the figure.

[0040] Figure 11 A structure schematic view of the waterproof plug provided by the embodiment of the present application is shown in the figure.

[0041] Figure 12 A structure schematic view of the ring shell provided by the embodiment of the present application is shown in the figure.

[0042] Explanation of reference signs:

[0043] 1, first shell part; 11, first cavity; 12, first limiting part; 121, first inclined surface; 122, first part; 123, second part; 124, third part; 13, third limiting part; 131, first guide inclined surface; 14, first support limiting part; 141, first limiting rib; 15, second support limiting part; 151, second limiting rib; 152, second guide inclined surface; 16, second protrusion;

[0044] 2, crystal head; 21, second limiting part; 211, second inclined surface; 22, elastic sheet; 221, first pressing part; 222, second pressing part; 23, crystal;

[0045] 3, second shell part; 31, second cavity; 32, partition plate; 33, third cavity; 34, clamping groove; 4, waterproof plug; 41, break; 5, cover part; 51, inner cavity; 6, waterproof ring; 7, ring shell; 71, first protrusion; 72, clamping hook. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0047] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For purposes of simplicity of the present disclosure, the following description will refer to specific examples of the present application. It is understood that these are merely examples and are not intended to limit the present application in any manner. Furthermore, the present application can be implemented in a variety of environments and applications, not just those described in the following examples. In addition, the present application can be repeated with different examples and / or in different orders. Such repetition is intended to encompass its application to all applicable examples and applications.

[0048] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived from the figures are used for convenience only, and are not intended to be limiting as to the position or attitude of the various embodiments and / or configurations described herein. It is to be understood that the disclosed devices can assume different positions and orientations and, accordingly, such terms are intended to be interpreted as being spatially relative terms. For example, if the device in the figures is turned over or rotated 90 degrees or otherwise moved, then the exemplary term "below" or "beneath" would, of course, be interpreted as being "above" or "over". Accordingly, the exemplary term "below" or "beneath" can include both the above and below positions. The device can be otherwise oriented (rotated 90 degrees or otherwise) and the spatially relative descriptors used herein interpreted accordingly.

[0049] In some example embodiments, as shown in Figures 1-6 A connector is applied in a cable. The connector includes a first shell 1 and a crystal head 2. The first shell 1 is used to accommodate and fix the crystal head 2. The crystal head 2 is used to connect with the cable (not shown in the figure).

[0050] The first shell 1 is annular. The first shell 1 is hollow to form a first cavity 11. The first cavity 11 is used to accommodate part of the structure of the crystal head 2 to provide a stable support environment for the crystal head 2.

[0051] The first shell part 1 is provided with a first limiting part 12, and the first limiting part 12 has a first inclined surface 121. Exemplarily, the first limiting part 12 comprises a first part 122, a second part 123 and a third part 124 connected in sequence, the first inclined surface 121 is located at the first part 122, the first part 122 is located at the outer side of the first shell part 1, so as to extend the overall length of the first limiting part 12, and when the crystal head 2 is installed into the first cavity 11, the first inclined surface 121 of the first limiting part 12 can effectively abut against the crystal head 2. The second part 123 is fixedly connected with the axial wall surface of the first shell part 1, and plays a role of connecting and supporting the first part 122. The third part 124 is fixedly connected with the radial wall surface of the first shell part 1, so as to increase the connection area of the first limiting part 12 and the first shell part 1 and improve the stability during connection.

[0052] The crystal head 2 is provided with a second limiting part 21, and the second limiting part 21 has a second inclined surface 211. When the crystal head 2 is installed into the first cavity 11, the second inclined surface 211 abuts against the first inclined surface 121. The shape of the second inclined surface 211 is matched with the shape of the first inclined surface 121, so as to ensure that the second inclined surface 211 and the first inclined surface 121 can be closely arranged, so as to play a role of guiding and limiting.

[0053] The matched design of the first inclined surface 121 and the second inclined surface 211 can guide each other between the inclined surfaces during installation of the crystal head 2, so as to quickly and accurately complete the installation process. Once the crystal head 2 is completely installed in place, the close arrangement of the first inclined surface 121 and the second inclined surface 211 can effectively limit the retreat of the crystal head 2, and ensure the stability during connection. The close arrangement of the inclined surfaces can also form a certain sealing effect, which is helpful to improve the waterproof performance of the connector, especially when used in humid or harsh environments.

[0054] The connector in the embodiment has simple design structure of the first limiting part 12 and the second limiting part 21, which is convenient for manufacturing and production, reduces the cost and improves the market competitiveness. Through the inclined surface matching of the first limiting part 12 and the second limiting part 21, the stability and waterproof performance during connection are ensured, and the high standard requirement in cable connection is met.

[0055] In the embodiment, as shown in Figures 1-6 The crystal head 2 comprises a crystal 23 and a spring sheet 22, and the spring sheet 22 is responsible for deformation under external force, so as to realize stable connection or disassembly with a cable or other connecting parts.

[0056] The elastic sheet 22 comprises a first pressing part 221 and a second pressing part 222, the first pressing part 221 has sufficient elasticity and strength to withstand external force and produce corresponding deformation. One end of the first pressing part 221 is connected with the crystal 23, and the other end of the first pressing part 221 is connected with the second pressing part 222, which plays a supporting and fixing role for the second pressing part 222. Under the action of external force, the first pressing part 221 drives the second pressing part 222 to move relative to the crystal 23, so that the crystal head 2 can more flexibly adapt to different connection requirements when connected. For example, when disassembling the crystal head 2, the first pressing part 221 can be pressed to drive the second pressing part 222 to move relative to the crystal 23, so that the elastic sheet 22 is separated from the first cavity 11, and then the crystal head 2 is removed to the outside.

[0057] The first pressing part 221 and the second pressing part 222 are integrally formed, which ensures that they can move synchronously under stress.

[0058] Among them, the second pressing part 222 is provided with a second limiting part 21 on both sides, and the second limiting part 21 is connected with the first pressing part 221. The number of first limiting parts 12 is the same as the number of second limiting parts 21, so as to balance the resistance of the crystal head 2 during connection and improve the stability and reliability of the crystal head 2 during connection.

[0059] In this embodiment, as shown in Figures 2-7 , the first shell part 1 is provided with a third limiting part 13, and the third limiting part 13 is connected with the inner wall of the first cavity 11. When the crystal head 2 is installed in the first cavity 11, the third limiting part 13 abuts against the second pressing part 222. The third limiting part 13 can press the second pressing part 222 of the crystal head 2, further improving the stability of the crystal head 2 during installation.

[0060] Among them, the side of the third limiting part 13 away from the first limiting part 12 has a first guide slope 131, and the first guide slope 131 abuts against the second pressing part 222. The first guide slope 131 can play a guiding role, and when disassembling the crystal head 2, it can be more smoothly withdrawn from the first cavity 11 along the first guide slope 131.

[0061] In this embodiment, as shown in Figures 2-8 , the first shell part 1 is provided with a first supporting limiting part 14 and a second supporting limiting part 15, and the first supporting limiting part 14 and the second supporting limiting part 15 are oppositely arranged along the radial direction of the first cavity 11. The first supporting limiting part 14 and the second supporting limiting part 15 are respectively fixedly connected with the first cavity 11 to improve the reliability.

[0062] The first support limiting part 14 and the second support limiting part 15 respectively abut against the crystal 23, and the first support limiting part 14 is arranged close to one side of the elastic sheet 22, and the first support limiting part 14 is arranged staggered with the elastic sheet 22, avoiding physical interference and ensuring the normal function of the elastic sheet 22. This layout not only provides necessary support, but also maintains the independence of other components.

[0063] The size of the first support limiting part 14 along the axial direction of the first cavity 11 is greater than the size of the second support limiting part 15 along the axial direction of the first cavity 11. This design strategy of "long top and short bottom" optimizes the operation space, especially during assembly and disassembly, providing sufficient flexibility.

[0064] When disassembling the crystal plug 2, the user can release the lock by pressing the elastic sheet 22. At this time, the shorter second support limiting part 15 provides sufficient space for the end of the crystal plug 2 to be pressed down, so that the crystal plug 2 can smoothly exit from the first cavity 11, reducing resistance and improving disassembly efficiency.

[0065] The second support limiting part 15 is wedge-shaped, thereby forming a second guide slope 152. The second guide slope 152 gradually inclines downward from the side close to the crystal plug 2 to the side away from it, which not only does not hinder the installation of the crystal plug 2, but also plays a guiding role, so that the user can slightly tilt the force when pushing the crystal plug 2 into the first cavity 11, thereby more smoothly completing the assembly and significantly improving the assembly efficiency.

[0066] The first support limiting part 14 and the second support limiting part 15 in the embodiment not only enhance the stability and reliability of the structure, but also greatly optimize the assembly and disassembly process of the crystal plug 2, improving the overall user experience and work efficiency.

[0067] In the embodiment, as shown in Figures 2-8 The first shell part 1 can also be provided with a limiting rib, which ensures the accurate positioning and stability of the crystal 23 during installation through physical contact and limitation. Exemplarily, the limiting rib includes a plurality of first limiting ribs 141, which are arranged on the first support limiting part 14 in an interval to limit and fix the crystal 23. The limiting rib can also include a plurality of second limiting ribs 151, which are arranged on the second support limiting part 15 in an interval, and the second limiting rib 151 abuts against the crystal 23.

[0068] It can be understood that the above-mentioned setting mode of the limiting rib can be to set only the first limiting rib 141, or to set only the second limiting rib 151, or to set the first limiting rib 141 and the second limiting rib 151 at the same time, which are arranged on different support limiting parts respectively to realize multi-point limiting and fixing of the crystal 23.

[0069] The first limiting ribs 141 are a plurality of independent rib structures, which are spaced and firmly mounted on the first supporting limiting part 14. The first limiting ribs 141 are used to prevent the crystal 23 from being displaced or shaken during the installation process by forming a close abutment with the edges or specific parts of the crystal 23 through their physical form.

[0070] Similarly, in order to further enhance the stability of the installation, a plurality of second limiting ribs 151 are also arranged on the second supporting limiting part 15. The second limiting ribs 151 and the first limiting ribs 141 complement each other in layout and design, and together form a comprehensive limiting system for the crystal 23. The second limiting ribs 151 are also arranged in a spaced manner to ensure that they can form a good abutment with different parts of the crystal 23, thereby providing stable support and limiting in multiple directions.

[0071] The first shell part 1 in the embodiment achieves effective limiting and fixing of the crystal 23 during the installation process by arranging the limiting rib structures including the first limiting ribs 141 and the second limiting ribs 151 thereon. This not only improves the stability of the installation, but also provides convenience for subsequent maintenance and replacement work.

[0072] In the embodiment, as shown in Figures 2-12 The connector further includes a second shell part 3, a waterproof plug 4, and a cover part 5, which cooperate with the first shell part 1 and the crystal head 2 to form a connector with complete functions and compact structure.

[0073] The second shell part 3 is connected to the first shell part 1. A waterproof ring 6 can be arranged between the second shell part 3 to fill the gap between the second shell part 3 and the first shell part 1, thereby increasing the sealing between the second shell part 3 and the first shell part 1.

[0074] The second shell part 3 has a second cavity 31, which is in communication with the first cavity 11 to jointly accommodate the crystal head 2. The second shell part 3 further has a partition 32 to divide the second shell part 3 into a third cavity 33, which is used to accommodate a terminal module (not shown in the figure), thereby ensuring the compactness of the internal structure of the connector and the integrity of the functions.

[0075] The cover part 5 is arranged on the side of the first shell part 1 away from the crystal head 2, and the cover part 5 is detachably connected with the first shell part 1. For example, the cover part 5 is provided with an inner cavity 51, the inner cavity 51 is provided with a first thread, the radial outer side wall of the first shell part 1 is provided with a second thread, and the cover part 5 is screwed with the second thread of the first shell part 1 through the first thread. Not only the stability of the connector is enhanced, but also the user is provided with a convenient disassembly experience.

[0076] The waterproof plug 4 is, for example, waterproof rubber, has excellent waterproof performance, and is connected with the first cavity 11 and the cover part 5 respectively to realize the waterproof performance. The waterproof plug 4 is annular, which can ensure that the cable can pass through smoothly and will not affect the waterproof effect. The waterproof plug 4 is provided with a break 41 along the axial direction, which is convenient for installing the cable.

[0077] When the user needs to install the cable, the break 41 is simply opened, and the waterproof plug 4 is buckled on the cable, so that the break 41 is automatically closed and sealed, thereby realizing the waterproof function. This design not only improves the practicability of the connector, but also provides the user with a more convenient and safe cable installation method.

[0078] The connector provided in the embodiment has compact structure and complete functions, realizes excellent waterproof performance and convenient disassembly experience, and meets the use requirements of the user in various complex environments.

[0079] In the embodiment, as shown in Figures 2-12 The connector further comprises a ring shell 7 to facilitate positioning and locking of the first shell part 1 and the second shell part 3, and further improve the stability of the connector. The radial side wall of the ring shell 7 is provided with at least one first protrusion 71 and at least one clamping hook 72.

[0080] The radial outer side wall of the second shell part 3 is provided with at least one clamping groove 34, and the clamping groove 34 is arranged to accommodate the first protrusion 71. The clamping groove 34 can be, for example, a pit, and the first protrusion 71 can be, for example, a convex bump, and the surface thereof is smooth, which helps the first protrusion 71 to slide on the surface of the second shell part 3 when the ring shell 7 is slid onto the second shell part 3, until it accurately enters the clamping groove 34. This sliding installation method not only simplifies the assembly process, but also ensures the reliability of the connection.

[0081] Alternatively, the clamping groove 34 can be, for example, an arc-shaped groove, and the arc-shaped groove has an open end. The ring shell 7 can be first sleeved on the second shell part 3, and the first protrusion 71 enters through the open end of the arc-shaped groove, and then the ring shell 7 is rotated to make the first protrusion 71 slide along the path of the arc-shaped groove until it is completely entered and locked in the clamping groove 34. This design provides greater flexibility and allows precise assembly adjustment in limited space.

[0082] The radially outer wall of the first shell part 1 is provided with at least one second protrusion 16 which is clamped with the clamping hook 72. The second protrusion 16 is, for example, a convex ring, and the clamping hook 72 can abut against the convex ring, thereby achieving stable clamping between the ring shell 7 and the first shell part 1. This clamping method is not only simple and effective, but also can resist external force, ensuring that the connection between the components of the connector will not loosen due to vibration or impact.

[0083] The connector in the embodiment achieves an efficient and reliable connection mechanism through the ring shell 7 and the first protrusion 71 and the clamping hook 72 thereon, and the clamping groove 34 of the second shell part 3 and the second protrusion 16 of the first shell part 1 cooperating therewith. This design not only simplifies the assembly process, but also improves the overall stability and durability of the connector.

[0084] The connector provided in the application is provided with a first limiting part 12 and a second limiting part 21, and through the guidance and cooperation of the inclined surface between the first limiting part 12 and the second limiting part 21, the crystal head 2 can be effectively limited from retreating, ensuring the stability and waterproof performance of the connection. At the same time, this design is simple in structure, easy to manufacture and produce, reduces the cost, and improves the market competitiveness.

[0085] The waterproof plug 4 is cut open, which not only facilitates assembly, but also better meets the design requirements and ensures the stability and reliability of the waterproof performance.

[0086] The first support limiting part 14 and the second support limiting part 15 introduce a limiting design with a long top and a short bottom. The short bottom design facilitates operation during assembly, and the long top design is used for the position of the crystal head 2, ensuring its stability in the connector. The upper and lower positions are also designed with limiting ribs, which not only further facilitate the assembly process, but also strengthen the limiting effect and improve the overall performance and reliability of the connector.

[0087] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be interpreted as necessarily requiring their performance in the specific order described or illustrated, unless explicitly stated otherwise. It should also be understood that additional or alternative steps can be employed.

[0088] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example implementations.

[0089] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes can readily occur to those skilled in the art, which modifications and changes are intended to be within the scope of the application. Accordingly, the scope of the application is to be interpreted only as is fairly required by the patent laws.

Claims

1. A connector characterized by comprising: The connector comprises: a first shell portion having a first cavity, the first shell portion being provided with a first limiting portion having a first inclined surface; a crystal head provided with a second limiting portion having a second inclined surface, the second inclined surface and the first inclined surface being in abutment when the crystal head is installed in the first cavity. The crystal head comprises a crystal and a spring piece, the spring piece comprising a first pressing portion and a second pressing portion, one end of the first pressing portion being connected to the crystal, the other end of the first pressing portion being connected to the second pressing portion, the first pressing portion driving the second pressing portion to move relative to the crystal under external force; 2. The connector of claim 1, wherein wherein both sides of the second pressing portion are provided with one second limiting portion, and the second limiting portion is connected to the first pressing portion. The first shell portion is provided with a third limiting portion, and the third limiting portion is connected to the inner wall of the first cavity; 3. The connector of claim 2, wherein when the crystal head is installed in the first cavity, the third limiting portion is in abutment with the second pressing portion. The side of the third limiting portion away from the first limiting portion has a first guide inclined surface, and the first guide inclined surface is in abutment with the second pressing portion.

4. The connector of claim 3, wherein The first shell portion is provided with a first support limiting portion and a second support limiting portion; 5. The connector of claim 2, wherein the first support limiting portion and the second support limiting portion are oppositely arranged along the radial direction of the first cavity and are respectively connected to the first cavity; the first support limiting portion and the second support limiting portion are respectively in abutment with the crystal, and the first support limiting portion is arranged close to one side of the spring piece; wherein the size of the first support limiting portion along the axial direction of the first cavity is greater than the size of the second support limiting portion along the axial direction of the first cavity. The first support limiting portion and / or the second support limiting portion are provided with limiting ribs, and the limiting ribs are in abutment with the crystal.

6. The connector of claim 5, wherein, The second support limiting portion is wedge-shaped to form a second guide inclined surface.

7. The connector of claim 5, wherein The connector further comprises a second shell portion, a waterproof plug, and a cover portion; 8. The connector of claim 1, wherein the second shell portion is connected to the first shell portion, and the second shell portion has a second cavity, the second cavity and the first cavity being in communication to jointly accommodate the crystal head; the cover portion is arranged on the side of the first shell portion away from the crystal head, and the cover portion is detachably connected to the first shell portion; the waterproof plug is respectively connected to the first cavity and the cover portion. The waterproof plug is annular, and the waterproof plug is provided with a fracture along the axial direction thereof.

9. The connector of claim 8, wherein, The connector further comprises a ring shell, and the radial side wall of the ring shell is provided with at least one first protrusion and at least one hook; 10. The connector of claim 8, wherein, the radial outer side wall of the second shell portion is provided with at least one clamping groove, the clamping groove being arranged to accommodate the first protrusion; the radial outer side wall of the first shell portion is provided with at least one second protrusion, and the second protrusion is in engagement with the hook. ​

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