Waterproof structure, connector socket and connector assembly

Abstract

The utility model discloses a waterproof structure, a connector socket and a connector assembly, and the waterproof structure comprises a waterproof pad which is provided with a central hole and at least one pair of screw holes which are oppositely arranged, and the inner side wall of each screw hole is provided with a screw sealing ring which protrudes inwards; the screws are assembled in the screw holes respectively, each screw is divided into a cylindrical section with a smooth surface and a thread section with threads, and the cylindrical sections are in interference fit with the screw sealing rings. According to the waterproof screw, a section of thread below the head of the screw is removed, the thread at the position is changed into the cylindrical face, the arranged screw sealing ring can be in interference fit with the cylindrical section of the screw, then the screw part is effectively sealed through the screw sealing ring, and the waterproof function of the screw hole position is achieved. The first end face and / or the second end face of the waterproof pad are / is provided with multiple waterproof convex ribs, and each waterproof convex rib can be in interference contact with the connector socket and / or the equipment installation panel, so that a greater protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and in particular to a waterproof structure, a connector socket and a connector assembly. Background Art

[0002] This section merely provides background information related to the present disclosure and may not constitute prior art.

[0003] The connector includes a connector plug and a connector socket. The connector plug and the connector socket are commonly used connection parts in the field of electrical technology. By plugging / unplugging the connector plug and the socket, the circuit can be turned on and off. Currently, the waterproofing between industrial connector sockets and equipment on the market is mainly achieved through flat rubber pads, which are waterproofed by matching the flat rubber pads with the connector and the equipment installation panel.

[0004] The flat rubber pad needs to be connected to the device mounting panel by screws so that the connector socket is tightly connected to the device mounting panel. However, there is no protective measure for the fixing position of the screw, that is, the screw hole position has no waterproof function. If the user wants to achieve the waterproof function during use, he needs to fill it with waterproof glue or design the screw hole as a blind hole, which may not be possible in actual use. Even if it can be achieved, it will cost a lot of extra money. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the screw hole position on the current plane rubber pad has no waterproof function, thereby providing a waterproof structure, a connector socket and a connector assembly.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A waterproof structure, comprising:

[0008] A waterproof pad, wherein the waterproof pad is provided with a central hole and at least one pair of screw holes arranged opposite to each other, and a screw sealing ring is provided on the inner side wall of the screw hole protruding inwardly;

[0009] At least one pair of screws, each of which is assembled into the inside of the screw hole, and the screw is divided into a cylindrical section with a smooth surface and a threaded thread section, the cylindrical section is interference fit with the screw sealing ring, and the threaded thread section passes through the screw hole and is suitable for connection with the equipment installation panel.

[0010] To further optimize the technical solution, the waterproof pad has a first end face in contact with the equipment installation panel and a second end face in contact with the connector socket; multiple waterproof ribs are arranged on the first end face and / or the second end face.

[0011] To further optimize the technical solution, the multiple waterproof ribs include:

[0012] a first annular convex rib, wherein the first annular convex rib is disposed on an end surface of the waterproof pad and arranged along an edge of the waterproof pad;

[0013] a second annular convex rib, the second annular convex rib being arranged on the end surface of the waterproof pad and located at the inner ring of the first annular convex rib;

[0014] At least one pair of third annular convex ribs, wherein the third annular convex ribs are arranged on the end surface of the waterproof pad and are located at the periphery of the screw hole, and the third annular convex ribs are located between the first annular convex ribs and the second annular convex ribs;

[0015] A plurality of connecting ribs, wherein the connecting ribs are connected between the first annular rib and the second annular rib and / or between the second annular rib and the third annular rib.

[0016] Connector socket, comprising:

[0017] A socket positioning housing, the socket positioning housing having a first socket positioning cylinder, a second socket positioning cylinder and a positioning plate, the positioning plate being located between the first socket positioning cylinder and the second socket positioning cylinder;

[0018] A first terminal positioning member, the first terminal positioning member is positioned inside the socket positioning housing;

[0019] A plurality of first terminals, each of which is arranged inside a first terminal positioning member;

[0020] The waterproof structure is arranged on the end surface of the positioning plate.

[0021] Connector assembly, comprising:

[0022] The connector socket;

[0023] A connector plug is plugged into a connector socket and locked by a locking assembly.

[0024] Further optimizing the technical solution, the connector plug includes:

[0025] Plug positioning housing;

[0026] An inner cylinder, wherein the inner cylinder is clamped and positioned inside the plug positioning housing, and a first gap and a second gap are respectively provided on two sides of the inner cylinder and the plug positioning housing;

[0027] A second terminal positioning member, the second terminal positioning member is clamped and positioned inside the inner cylinder;

[0028] A plurality of second terminals are arranged inside the second terminal positioning member and can be plugged and matched with the first terminals.

[0029] Further optimizing the technical solution, the second terminal positioning member includes a stepped cylinder clamped with the inner cylinder, the stepped cylinder is divided into a first cavity and a second cavity, the first cavity is provided with a second terminal positioning cylinder for positioning the second terminal, and the second cavity is used to hold the second terminal extending out of the second terminal positioning cylinder and to be plugged and matched with the first terminal positioning member;

[0030] The second terminal positioning cylinder is an insulating terminal positioning cylinder, and the second terminal positioning cylinder extends from the stepped cylinder;

[0031] A plurality of second terminal positioning holes are provided on the second terminal positioning tube, and the second terminal positioning holes are arranged in a stepped hole shape; when the second terminal is inserted into the second terminal positioning hole, the metal column end of the second terminal extends out from the second terminal positioning hole, and there is a distance between the hollow column end of the second terminal and the end surface of the second terminal positioning tube.

[0032] To further optimize the technical solution, the second terminal is provided with a plurality of claws which are engaged with the second terminal positioning holes;

[0033] and / or

[0034] An annular groove is formed on the inner cylinder, and a corrugated sealing ring capable of tightly sealing with the first positioning cylinder of the socket and the inner cylinder is arranged in the annular groove.

[0035] To further optimize the technical solution, the locking assembly includes:

[0036] A snap-button positioning frame, the snap-button positioning frame being arranged on an outer side wall of the connector plug;

[0037] A snap button, wherein the middle part of the snap button is rotatably arranged inside the snap button positioning frame through a rotating shaft, and the snap button comprises a pressing part and a clamping part which are integrally arranged, and the pressing part and the clamping part are located on both sides of the rotating shaft; and an opening is provided on the snap button positioning frame, which is suitable for exposing the pressing part;

[0038] A torsion spring, wherein the torsion spring comprises a winding section and a supporting section, wherein the winding section is wound around the rotating shaft, and the supporting section abuts against the bottom wall of the pressing portion;

[0039] A clamping block is arranged on the first positioning cylinder of the socket and is clamped with the clamping portion.

[0040] To further optimize the technical solution, the end of the connector socket is detachably and sealedly connected with a socket extension cylinder assembly, and a first accommodating cavity is provided inside the socket extension cylinder assembly;

[0041] and / or

[0042] The end of the connector plug is detachably and sealedly connected with a plug extension cylinder assembly, and a second accommodating cavity is arranged inside the plug extension cylinder assembly.

[0043] To further optimize the technical solution, a socket end cover is connected to the end of the connector socket, and the socket end cover is suitable for being opened when the connector socket is in use and being sealed at the end of the connector socket when the connector socket is not in use.

[0044] The technical solution of the utility model has the following advantages:

[0045] 1. The utility model provides a waterproof structure, which removes a section of the thread below the screw head and changes the thread therein to a cylindrical surface. The screw sealing ring provided can be interference fit with the cylindrical section of the screw, and then the screw portion is effectively sealed by the screw sealing ring, thereby achieving the waterproof function of the screw hole. When the waterproof structure is connected to the equipment installation panel, the waterproof pad can be connected to the equipment installation panel through screws with waterproof function, so that the sealing performance between the connector socket and the equipment installation panel is better, even if the equipment installation panel is located outdoors. When the screw is locked, the original screw hole is not waterproof, and the waterproof level after improvement reaches IP67 or above.

[0046] 2. The utility model provides a waterproof structure, in which multiple waterproof ribs are arranged on the first end face and / or the second end face of the waterproof pad. Each layer of waterproof ribs can make interference contact with the connector socket and / or the equipment installation panel. The ribs can increase the pressure on the basis of the same sealing pressure to achieve a greater protective effect.

[0047] 3. The utility model provides a waterproof structure, with convex ribs around the four sides, the center hole and the screw hole, forming multiple waterproofing. Even if the surface of the waterproof pad is not completely flat, the sealing performance of the waterproof structure as a whole can be enhanced by the multiple waterproof ribs, and the waterproof function will not fail, and the production accuracy of the waterproof pad will not be reduced. When the screws are tightened, under the same or slightly smaller tightening force, the waterproofness of the bottom of the connector socket is significantly better than the original flat pad, and the waterproof level can reach IP68.

[0048] 4. The utility model provides a connector assembly, in which the second terminal positioning cylinder is an insulating terminal positioning cylinder, and the second terminal positioning cylinder extends from the step cylinder. When the cable is connected, the cable can first contact the insulating second terminal positioning cylinder, and then the cable can be positioned to the hollow column end of the second terminal. Therefore, the setting form of the second terminal positioning cylinder in the utility model can prevent the cable from contacting metal materials such as the plug positioning shell and the inner cylinder, thereby increasing safety performance.

[0049] 5. The utility model provides a connector assembly, in which the second terminal positioning hole is arranged in a stepped hole shape relative to the existing structure, and there is a spacing between the hollow column end of the second terminal and the end face of the second terminal positioning tube, so that when the cable is inserted into the hollow column end of the second terminal, the exposed part of the cable will be inside the second terminal positioning hole, thereby preventing the conductor from being exposed outside the second terminal positioning tube, further increasing the safety performance.

[0050] Furthermore, the small diameter portion of the stepped hole on the second terminal positioning hole can reduce the movable range of the second terminal, reduce the deflection of the second terminal, and further improve the stability of the second terminal positioning.

[0051] 6. The utility model provides a connector assembly, wherein the second terminal is provided with a plurality of claws that fit into the second terminal positioning hole. If the second terminal is damaged after being used for a period of time, the second terminal can be directly replaced, thereby reducing the replacement cost.

[0052] 7. The utility model provides a connector assembly, in which an annular groove is formed on the inner cylinder, and a corrugated sealing ring is arranged in the annular groove. The corrugated sealing ring can increase the contact area with the first positioning cylinder and the inner cylinder of the socket, increase the friction force, and make it difficult to move. The corrugated sealing ring can fill the annular groove. When the first positioning cylinder and the inner cylinder are in contact, they can be in close contact with the entire corrugated sealing ring. The provided corrugated sealing ring improves the waterproof and dustproof performance, reaching the IP67 waterproof level.

[0053] 8. In a connector assembly provided by the utility model, the force direction of the torsion spring is consistent with the pressing direction, so that the force on the pressing part is more uniform, and during use, the middle of the snap will not bulge, thereby increasing the service life.

[0054] The snaps are exposed, so if any foreign matter gets into the snaps, it can be easily taken out, and there will be no situation where the snaps cannot be used due to the accumulation of foreign matter.

[0055] 9. The utility model provides a connector assembly, in which the end of the connector socket is connected with a socket end cover. When the connector socket is connected to the device installation panel, it can be directly connected by screws. When the connected connector socket is not in use, the end of the connector plug to be inserted can be sealed with the socket end cover, thereby achieving dustproof and waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0057] Figure 1 This is a schematic structural diagram of a waterproof pad in the waterproof structure of the utility model from a first perspective;

[0058] Figure 2 It is a schematic structural diagram of the waterproof pad in the waterproof structure of the utility model from a second viewing angle;

[0059] Figure 3 It is a structural schematic diagram of the waterproof structure of the utility model;

[0060] Figure 4 It is a structural schematic diagram of the screws in the waterproof structure of the utility model;

[0061] Figure 5 A schematic diagram of the structure of the connector socket of the utility model;

[0062] Figure 6 This is another structural schematic diagram of the connector assembly of the utility model;

[0063] Figure 7 A schematic diagram of the structure of the connector assembly of the utility model;

[0064] Figure 8 For this utility model Figure 7 Exploded diagram of

[0065] Fig. 9 For this utility model Figure 7 A cross-sectional view of

[0066] Fig.10 For this utility model Figure 7 sectional view of

[0067] Fig.11 This is another structural schematic diagram of the connector assembly of the utility model;

[0068] Fig.12 For this utility model Fig.11 A cross-sectional view of

[0069] Fig.13 For this utility model Fig.11 The cutaway diagram of .

[0070] Reference numerals:

[0071] 1. waterproof pad, 11. first annular convex rib, 12. second annular convex rib, 13. connecting convex rib, 14. third annular convex rib, 15. screw hole, 16. screw sealing ring, 17. center hole, 18. screw, 181. cylindrical section, 182. screw thread section, 19. waterproof pad extension section;

[0072] 2. Connector socket, 21. Socket positioning housing, 211. Socket first positioning cylinder, 212. Socket second positioning cylinder, 213. Positioning plate, 22. First terminal positioning member, 221. First positioning tube, 222. First positioning hole, 23. First terminal;

[0073] 3. socket extension tube assembly, 31. first socket extension tube, 311. first accommodating cavity, 32. second socket extension tube, 321. first threading hole, 33. first sealing ring;

[0074] 4. Connector plug, 41. Plug positioning housing, 42. Second terminal positioning member, 421. Second terminal positioning cylinder, 423. Step cylinder, 424. Second terminal positioning hole, 43. Second terminal, 431. Claw, 44. Inner cylinder, 45. Corrugated sealing ring;

[0075] 5. Plug extension tube assembly, 51. first plug extension tube, 511. second accommodating chamber, 52. second plug extension tube, 521. second threading hole, 53. second sealing ring;

[0076] 6. Socket end cover;

[0077] 7. Locking assembly, 71. Snap button, 711. Pressing portion, 712. Clamping portion, 72. Torsion spring, 73. Snap button positioning frame, 74. Rotating shaft, 75. Block. DETAILED DESCRIPTION

[0078] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the waterproof structure of the present invention described in the present invention by providing a screw sealing ring on the waterproof pad is only a preferred embodiment and does not limit the protection scope of the connector.

[0079] 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. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "" as used herein may also be meant to include the plural forms. The terms "comprise", "include", and "have" are inclusive and therefore specify the presence of stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0080] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. In addition, in the description of the utility model, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0081] For ease of description, spatial relative terms can be used in the text to describe the relationship of an element or feature relative to another element or feature as shown in the figure, and these relative terms are, for example, "front", "rear", "middle", "inside", "longitudinal", "lateral", "side", "vertical", "outside", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation depicted in the figure. For example, if the mechanism in the figure flips, the element described as "below other elements or features" or "below other elements or features" will be subsequently oriented to "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include the orientation on and below. The mechanism can be oriented in addition (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0082] The connector includes a connector plug and a connector socket. The connector plug and the connector socket are commonly used connection parts in the field of electrical technology. By plugging / unplugging the connector plug and the socket, the circuit can be turned on and off. Currently, the waterproofing between industrial connector sockets and equipment on the market is mainly achieved through flat rubber pads, which are waterproofed by matching the flat rubber pads with the connector and the equipment installation panel.

[0083] The flat rubber pad needs to be connected to the device mounting panel by screws so that the connector socket is tightly connected to the device mounting panel. However, there is no protective measure for the fixing position of the screw, that is, the screw hole position has no waterproof function. If the user wants to achieve the waterproof function during use, he needs to fill it with waterproof glue or design the screw hole as a blind hole, which may not be possible in actual use, and even if it can be achieved, it will require a lot of additional costs. Therefore, the existing connectors actually have no waterproof function at all or only have limited waterproof function.

[0084] In view of the above technical problems, the utility model adds a waterproof function to the screws to meet the waterproof performance when the connector is connected.

[0085] The specific embodiments of the present invention are described in detail below in conjunction with the waterproof structure of the first aspect of the present invention, the connector socket of the second aspect of the present invention, and the connector assembly of the third aspect of the present invention.

[0086] Example 1

[0087] It should be noted that the waterproof structure of the first aspect of the utility model is only a preferred embodiment of the utility model. The waterproof structure of the utility model can adopt the waterproof structure of the first aspect of the utility model or other structures. For the convenience of explanation, the waterproof structure of the first aspect of the utility model is explained below.

[0088] like Figures 1 to 4 As shown, this embodiment discloses a waterproof structure, including a waterproof pad 1 and a screw 18. The waterproof pad 1 is provided with a central hole 17 and at least one pair of screw holes 15 arranged opposite to each other, and a screw sealing ring 16 is provided on the inner side wall of the screw hole 15 protruding inward. The screw 18 is suitable for connecting the connector socket 2, the waterproof pad 1 and the equipment installation panel. At least one pair of screws 18 is provided, and each screw 18 is respectively assembled into the inside of the screw hole 15. The screw 18 is divided into a cylindrical section 181 with a smooth surface and a threaded thread section 182. The cylindrical section 181 is interference fit with the screw sealing ring 16, and the threaded thread section 182 passes through the screw hole 15 and is suitable for connecting with the equipment installation panel.

[0089] In this embodiment, a section of the thread below the screw head is removed, and the thread therein is changed to a cylindrical surface. The screw sealing ring 16 provided can be interference fit with the cylindrical section 181 of the screw 18, and then the screw portion is effectively sealed by the screw sealing ring 16, thereby realizing the waterproof function of the screw hole. Then, when the waterproof structure is connected to the device installation panel, the waterproof pad 1 can be connected to the device installation panel through a screw with a waterproof function, so that the sealing performance between the connector socket 2 and the device installation panel is better, even if the device installation panel is located outdoors. When the screw is locked, the original screw hole is not waterproof, and the waterproof level after improvement reaches IP67 or above.

[0090] It should be noted that the waterproof pad 1 in this embodiment is a rubber pad, and waterproof pads made of other materials may also be used, and the specific material is not limited here.

[0091] like Figure 5 As shown, a pair of screws 18 are provided and are arranged diagonally to each other; Figure 6 As shown, the screws 18 are provided in two pairs.

[0092] Since the waterproof pad is designed to be flat, it cannot be completely flat during actual production, and it may be easy to cause uneven contact surfaces and gaps during use due to pressure imbalance or improper placement of the waterproof pad, and the existence of gaps will cause the waterproof function to fail. In order to solve this technical problem, in some embodiments, the waterproof pad 1 has a first end face in contact with the device mounting panel and a second end face in contact with the connector socket 2; multiple waterproof ribs are arranged on the first end face and / or the second end face.

[0093] In this embodiment, because multiple waterproof convex ribs are arranged on the first end face and / or the second end face of the waterproof pad, each waterproof convex rib can be in interference contact with the connector socket 2 and / or the device installation panel, and the convex ribs can increase the pressure on the basis of the same sealing pressure to achieve a greater protection effect. Among them, "same sealing pressure" specifically refers to the same pressure applied to the sealing pad.

[0094] Taking the example of multiple waterproof ribs on both the first end face and the second end face, when the screw 18 is tightened, the bottom plane of the connector socket 2 presses the waterproof pad onto the equipment installation panel, and the waterproof pad ribs and part of the waterproof pad plane are in interference contact with the bottom of the connector and the equipment installation panel, effectively ensuring the waterproof performance.

[0095] In some embodiments, the multiple waterproof ribs include a first annular rib 11, a second annular rib 12, a third annular rib 14 and a connecting rib 13. The first annular rib 11 is provided on the end surface of the waterproof pad 1 and arranged along the edge of the waterproof pad 1. The second annular rib 12 is provided on the end surface of the waterproof pad 1 and is located at the inner ring of the first annular rib 11. At least one pair of the third annular rib 14 is provided, the third annular rib 14 is provided on the end surface of the waterproof pad 1 and is located at the periphery of the screw hole 15, and the third annular rib 14 is located between the first annular rib 11 and the second annular rib 12. There are a plurality of connecting ribs 13, and the connecting ribs 13 are connected between the first annular rib 11 and the second annular rib 12 and / or between the second annular rib 12 and the third annular rib 14.

[0096] In this embodiment, the waterproof pad 1 is set to a rectangle, and the first annular rib 11 is correspondingly set to a rectangle. When the shape of the waterproof pad changes, the shape of the first annular rib 11 will also change accordingly. The second annular rib 12 is arranged along the periphery of the center hole 17 and changes with the shape of the center hole. The connecting rib 13 plays a role in strengthening the connection on the one hand, and plays a role in waterproofing on the other hand. The ribs in this embodiment are respectively arranged around the four sides, the center hole and the screw hole to form multiple waterproofing. Even if the surface of the waterproof pad is not completely flat, the sealing performance of the overall waterproof structure can be enhanced by multiple waterproof ribs, and the problem of waterproof function failure will not occur, and the production accuracy of the waterproof pad is reduced. When tightening the screws, under the same or slightly smaller tightening force, the waterproofness of the bottom of the connector socket is significantly better than the original flat pad, and the waterproof level can reach IP68.

[0097] Example 2

[0098] It should be noted that the connector socket of the second aspect of the utility model is only a preferred embodiment of the utility model. The connector socket of the utility model can adopt the connector socket of the second aspect of the utility model or other structures. For the convenience of explanation, the connector socket of the second aspect of the utility model is explained below.

[0099] like Figure 5 to Figure 6 As shown, this embodiment discloses a connector socket, including a socket positioning housing 21, a first terminal positioning member 22, a first terminal 23 and the waterproof structure of embodiment 1. The socket positioning housing 21 has a socket first positioning cylinder 211, a socket second positioning cylinder 212 and a positioning plate 213, and the positioning plate 213 is located between the socket first positioning cylinder 211 and the socket second positioning cylinder 212. The first terminal positioning member 22 is positioned inside the socket positioning housing 21. A plurality of first terminals 23 are provided, and each first terminal 23 is arranged inside the first terminal positioning member 22. The waterproof structure is arranged on the end surface of the positioning plate 213.

[0100] In this embodiment, the waterproof structure of Embodiment 1 can be positioned by screws 18. When the connector socket is not connected to the device installation panel, nuts and screws 18 can be used to lock and position the waterproof structure on the socket positioning housing 21. The connector socket in this embodiment has a waterproof structure, so that the connector socket can be connected to the device installation panel located in the external environment, and can be used for a long time in the external environment, and has a good sealing and waterproof effect.

[0101] More specifically, a plurality of first positioning tubes 221 are disposed on the first terminal positioning member 22 . First positioning holes 222 are formed inside the first positioning tubes 221 . The first terminals 23 are clamped and disposed in the first positioning holes 222 .

[0102] Example 3

[0103] It should be noted that the connector assembly of the third aspect of the utility model is only a preferred embodiment of the utility model. The connector assembly of the utility model can adopt the connector assembly of the third aspect of the utility model or other structures. For the convenience of explanation, the connector assembly of the third aspect of the utility model is explained below.

[0104] like Figures 7 to 10 As shown, this embodiment discloses a connector assembly, including a connector plug 4 and a connector socket 2 of embodiment 2. The connector plug 4 is plugged into the connector socket and locked by a locking assembly 7.

[0105] In some embodiments, the connector plug 4 includes a plug positioning housing 41, an inner cylinder 44, a second terminal positioning member 42, and a second terminal 43. The inner cylinder 44 is snap-fitted and positioned inside the plug positioning housing 41, and a first gap and a second gap are provided between the inner cylinder 44 and the plug positioning housing 41, respectively, on both sides. The second terminal positioning member 42 is snap-fitted and positioned inside the inner cylinder 44. A plurality of second terminals 43 are provided, and the second terminals 43 are provided inside the second terminal positioning member 42 and can be plugged and matched with the first terminal 23. The second terminal 43 has a hollow column end and a metal column end, which are respectively located on both sides and are integrally provided.

[0106] In this embodiment, the inner cylinder 44 is configured as a stepped cylinder. The first gap between the inner cylinder 44 and the plug positioning housing 41 is used to position the socket first positioning cylinder of the socket positioning housing, and the second gap is used to position the plug extension cylinder assembly 5 .

[0107] In some embodiments, the second terminal positioning member 42 includes a stepped cylinder 423 that is clamped with the inner cylinder 44. The stepped cylinder 423 is divided into a first cavity and a second cavity. The first cavity is provided with a second terminal positioning cylinder 421 for positioning the second terminal. The second cavity is used to hold the second terminal extending out of the second terminal positioning cylinder 421 and to be inserted and matched with the first terminal positioning member 22.

[0108] In some embodiments, the second terminal positioning cylinder 421 is an insulating terminal positioning cylinder, and the second terminal positioning cylinder 421 extends from the stepped cylinder 423. In this embodiment, the second terminal positioning cylinder 421 is made of plastic material and has good insulation performance. The second terminal positioning cylinder 421 extends from the stepped cylinder 423, that is, the second terminal positioning cylinder 421 protrudes from the stepped cylinder 423, and then when the cable is connected, the cable can first contact the insulating second terminal positioning cylinder 421, and then the cable can be positioned to the hollow column end of the second terminal. Therefore, the setting form of the second terminal positioning cylinder 421 in this embodiment can prevent the cable from contacting metal materials such as the plug positioning housing 41 and the inner cylinder 44, thereby increasing safety performance.

[0109] In some embodiments, a plurality of second terminal positioning holes 424 are provided on the second terminal positioning cylinder 421, and the second terminal positioning holes 424 are arranged in a stepped hole shape. When the second terminal 43 is inserted into the second terminal positioning hole 424, the metal column end of the second terminal extends out from the second terminal positioning hole 424, and there is a spacing between the hollow column end of the second terminal and the end face of the second terminal positioning cylinder 421. In this embodiment, the second terminal positioning hole 424 is arranged in a stepped hole shape relative to the existing structure, and there is a spacing between the hollow column end of the second terminal and the end face of the second terminal positioning cylinder 421, and then when the cable is inserted into the hollow column end of the second terminal, the exposed part of the cable will be inside the second terminal positioning hole 424, and then the conductor can be prevented from being exposed outside the second terminal positioning cylinder 421, further increasing the safety performance.

[0110] Furthermore, the small diameter portion of the stepped hole on the second terminal positioning hole can reduce the movable range of the second terminal, reduce the deflection of the second terminal, and further improve the stability of the second terminal positioning.

[0111] The current terminal and plastic part are usually an integrated structure. If damaged, the entire connector needs to be replaced, which increases the replacement cost. In some embodiments, the second terminal 43 is provided with a plurality of claws 431 that are engaged with the second terminal positioning hole 424. In this embodiment, after the second terminal 43 has been used for a period of time, if the second terminal 43 is damaged, the second terminal 43 can be directly replaced, thereby reducing the replacement cost.

[0112] More specifically, in this embodiment, when installing the second terminal 43, the second terminal 43 with the claw 431 can be directly installed into the second terminal positioning hole 424, and the claw 431 will press against the stepped hole of the second terminal positioning hole 424, and the claw 431 will be limited by the step of the stepped hole. When removing the second terminal 43, the claw 431 can be pressed and then the second terminal 43 can be pulled out.

[0113] At present, the seal between the connector socket 2 and the connector plug 4 is usually sealed by an O-ring, which is arranged inside the groove. However, there are few contact points between the O-ring and the connector socket 2 and the connector plug 4. When the connector socket 2 and the connector plug 4 squeeze the O-ring, the O-ring will be offset and separated from the original position, affecting the sealing effect. In order to solve this technical problem, in some embodiments, an annular groove is opened on the inner cylinder 44, and a corrugated sealing ring 45 that can be tightly sealed with the first positioning cylinder 211 of the socket and the inner cylinder 44 is arranged in the annular groove.

[0114] In this embodiment, the corrugated sealing ring 45 can increase the contact area with the first positioning cylinder 211 of the socket and the inner cylinder 44, increase the friction force, and make it difficult to move, and the corrugated sealing ring 45 can fill the annular groove, and when the first positioning cylinder 211 of the socket and the inner cylinder 44 are in contact, they can be in close contact with the entire corrugated sealing ring 45. The provided corrugated sealing ring 45 improves the waterproof and dustproof performance, reaching the IP67 waterproof level.

[0115] In some embodiments, the locking assembly 7 includes a snap-on positioning frame 73, a snap 71, a torsion spring 72 and a clamping block 75. The snap-on positioning frame 73 is arranged on the outer side wall of the connector plug 4. The middle part of the snap 71 is rotatably arranged inside the snap-on positioning frame 73 through the rotating shaft 74. The snap 71 includes a pressing portion 711 and a clamping portion 712 which are arranged integrally. The pressing portion 711 and the clamping portion 712 are located on both sides of the rotating shaft 74. The torsion spring 72 has a winding section and a supporting section. The winding section is wound on the rotating shaft 74, and the supporting section abuts against the bottom wall of the pressing portion 711. The clamping block 75 is arranged on the first positioning cylinder 211 of the socket and is clamped with the clamping portion 712. In this embodiment, the force direction of the torsion spring 72 is consistent with the pressing direction, so that the force of the pressing portion 711 is more uniform, and during use, the snap 71 will not be arched in the middle, thereby increasing the service life.

[0116] At present, snaps are usually set to be buried. If a foreign object enters the position of the snap, it is not easy to remove the foreign object, resulting in the accumulation of foreign objects. After a long time, the pressing of the snap will produce resistance, and even cause the snap to lose its pressing function. In order to solve this technical problem, in some embodiments, the snap positioning frame 73 is provided with a first opening suitable for exposing the pressing portion 711, and the snap positioning frame 73 is also provided with a second opening suitable for passing the clamping portion 712. In this embodiment, the snap 71 is exposed, and if a foreign object enters the snap, the foreign object can be easily removed, and there will be no situation where the snap cannot be used due to the accumulation of foreign objects at the snap.

[0117] In some embodiments, the end of the connector plug 4 is detachably and sealedly connected to a plug extension tube assembly 5 , and a second accommodating cavity 511 is disposed inside the plug extension tube assembly 5 .

[0118] More specifically, the plug extension tube assembly 5 includes a first plug extension tube 51 and a second plug extension tube 52. The interior of the first plug extension tube 51 is provided with a second accommodating chamber 511, the first plug extension tube 51 is threadedly fitted with the inner tube, and a second sealing ring 53 is provided between the first plug extension tube 51 and the inner tube. The second plug extension tube 52 is threadedly fitted on the first plug extension tube 51, and a second threading hole 521 is provided on the second plug extension tube 52, the inner diameter of the second threading hole 521 is smaller than the inner diameter of the second accommodating chamber 511, and the cable can be inserted into the second accommodating chamber 511 through the second threading hole 521 and inserted into the second terminal.

[0119] In some embodiments, the end of the connector socket 2 of the connector assembly is connected with a socket end cover 6. In this embodiment, the socket end cover 6 is suitable for opening when the connector socket 2 is in use, and is sealed at the end of the connector socket 2 when the connector socket 2 is not in use. The waterproof pad 1 is provided with a waterproof pad extension section 19, and the waterproof pad extension section 19 is connected to the socket end cover 6. When the connector socket 2 is connected to the device installation panel, it can be directly connected by screws. When the connected connector socket 2 is not in use, the socket end cover 6 can be used to seal the end of the connector plug to be inserted, thereby achieving dustproof and waterproof performance.

[0120] Example 4

[0121] like Figures 11 to 13 As shown, based on Example 3, this embodiment discloses a connector assembly, which is different from Example 3 in that the connector assembly in this embodiment is provided with extension tube assemblies at the end of the connector plug 4 and the end of the connector socket 2 respectively.

[0122] In some embodiments, the end of the connector socket 2 is detachably sealed and connected with a socket extension tube assembly 3, and a first accommodating chamber 311 is arranged inside the socket extension tube assembly 3. More specifically, the socket extension tube assembly 3 includes a first socket extension tube 31 and a second socket extension tube 32. The interior of the first socket extension tube 31 is arranged as the first accommodating chamber 311, and the first socket extension tube 31 is threadedly fitted with the second socket positioning tube 212, and the first socket extension tube 31 and the second socket positioning tube 212 are provided with a first sealing ring 33. The second socket extension tube 32 is threadedly fitted on the first socket extension tube 31, and a first threading hole 321 is arranged on the second socket extension tube 32, and the inner diameter of the first threading hole 321 is smaller than the inner diameter of the first accommodating chamber 311, and the cable can be inserted into the first accommodating chamber 311 through the first threading hole 321 and inserted into the first terminal. In this embodiment, the socket extension tube assembly 3 can be replaced according to the diameter of the cable to improve the stability of the cable connection.

[0123] The end of the connector plug 4 is detachably and sealedly connected with a plug extension cylinder assembly 5, and a second accommodating chamber 511 is arranged inside the plug extension cylinder assembly 5. More specifically, the plug extension cylinder assembly 5 includes a first plug extension cylinder 51 and a second plug extension cylinder 52. The interior of the first plug extension cylinder 51 is arranged as the second accommodating chamber 511, the first plug extension cylinder 51 is threadedly fitted with the inner cylinder, and a second sealing ring 53 is arranged between the first plug extension cylinder 51 and the inner cylinder. The second plug extension cylinder 52 is threadedly fitted on the first plug extension cylinder 51, and a second threading hole 521 is arranged on the second plug extension cylinder 52, the inner diameter of the second threading hole 521 is smaller than the inner diameter of the second accommodating chamber 511, and the cable can be inserted into the second accommodating chamber 511 through the second threading hole 521 and inserted into the second terminal. In this embodiment, the provided plug extension cylinder assembly 5 can be replaced according to the diameter of the cable, so as to improve the stability of the cable connection.

[0124] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A waterproof structure, characterized in that: include: A waterproof pad (1), wherein the waterproof pad (1) is provided with a central hole (17) and at least one pair of screw holes (15) arranged opposite to each other, and a screw sealing ring (16) is provided on the inner side wall of the screw hole (15) protruding inwardly; At least one pair of screws (18), each of the screws (18) is respectively assembled into the inside of the screw hole (15), the screw (18) is divided into a cylindrical section (181) with a smooth surface and a threaded thread section (182), the cylindrical section (181) is interference fit with the screw sealing ring (16), and the threaded thread section (182) passes through the screw hole (15) and is suitable for connecting with the equipment installation panel.

2. The waterproof structure according to claim 1, characterized in that: The waterproof pad (1) has a first end surface in contact with the equipment installation panel and a second end surface in contact with the connector socket (2); the first end surface and / or the second end surface are provided with multiple waterproof ribs.

3. The waterproof structure according to claim 2, characterized in that: The multiple waterproof convex ribs include: A first annular convex rib (11), the first annular convex rib (11) being arranged on the end surface of the waterproof pad (1) and arranged along the edge of the waterproof pad (1); A second annular convex rib (12), the second annular convex rib (12) being arranged on the end surface of the waterproof pad (1) and located at the inner ring of the first annular convex rib (11); at least one pair of third annular convex ribs (14), the third annular convex ribs (14) being arranged on the end surface of the waterproof pad (1) and located at the periphery of the screw hole (15), and the third annular convex ribs (14) being located between the first annular convex rib (11) and the second annular convex rib (12); A plurality of connecting ribs (13), wherein the connecting ribs (13) are connected between the first annular rib (11) and the second annular rib (12) and / or between the second annular rib (12) and the third annular rib (14).

4. A connector socket, characterized in that: include: A socket positioning housing (21), the socket positioning housing (21) comprising a first socket positioning cylinder (211), a second socket positioning cylinder (212) and a positioning plate (213), wherein the positioning plate (213) is located between the first socket positioning cylinder (211) and the second socket positioning cylinder (212); A first terminal positioning member (22), the first terminal positioning member (22) being positioned inside the socket positioning housing (21); A plurality of first terminals (23), each of the first terminals (23) being arranged inside a first terminal positioning member (22); The waterproof structure according to any one of claims 1 to 3 is arranged on the end surface of the positioning plate (213).

5. A connector assembly, characterized in that: include: The connector socket (2) as claimed in claim 4; A connector plug (4), the connector plug (4) being plugged into the connector socket and locked by a locking assembly (7); The connector plug (4) comprises a plug positioning shell (41), an inner cylinder (44), a second terminal positioning member (42) and a plurality of second terminals (43); the inner cylinder (44) is snap-fitted and positioned inside the plug positioning shell (41), and a first gap and a second gap are provided between the inner cylinder (44) and the plug positioning shell (41) on both sides respectively; the second terminal positioning member (42) is snap-fitted and positioned inside the inner cylinder (44); the second terminal (43) is provided inside the second terminal positioning member (42) and can be plug-fitted and matched with the first terminal (23).

6. The connector assembly according to claim 5, characterized in that: The second terminal positioning member (42) comprises a stepped cylinder (423) clamped with the inner cylinder (44); the stepped cylinder (423) is divided into a first cavity and a second cavity; the first cavity is provided with a second terminal positioning cylinder (421) for positioning the second terminal; the second cavity is used to hold the second terminal extending out of the second terminal positioning cylinder (421) and to be plugged and matched with the first terminal positioning member (22); The second terminal positioning cylinder (421) is an insulating terminal positioning cylinder, and the second terminal positioning cylinder (421) extends from the stepped cylinder (423); A plurality of second terminal positioning holes (424) are provided on the second terminal positioning cylinder (421), and the second terminal positioning holes (424) are arranged in a stepped hole shape; when the second terminal (43) is inserted into the second terminal positioning hole (424), the metal column end of the second terminal extends out from the second terminal positioning hole (424), and there is a distance between the hollow column end of the second terminal and the end surface of the second terminal positioning cylinder (421).

7. The connector assembly according to claim 6, characterized in that: The second terminal (43) is provided with a plurality of claws (431) that are engaged with the second terminal positioning hole (424); and / or The inner cylinder (44) is provided with an annular groove, and a corrugated sealing ring (45) capable of tightly sealing with the first positioning cylinder (211) of the socket and the inner cylinder (44) is arranged in the annular groove.

8. The connector assembly according to claim 5, characterized in that: The locking assembly (7) comprises: A snap-button positioning frame (73), wherein the snap-button positioning frame (73) is arranged on an outer side wall of the connector plug (4); A snap button (71), wherein the middle portion of the snap button (71) is rotatably arranged inside a snap button positioning frame (73) via a rotating shaft (74), the snap button (71) comprises a pressing portion (711) and a clamping portion (712) which are integrally arranged, the pressing portion (711) and the clamping portion (712) being located on both sides of the rotating shaft (74); and an opening is provided on the snap button positioning frame (73) for exposing the pressing portion (711); A torsion spring (72), the torsion spring (72) comprising a winding section and a supporting section, the winding section being wound on the rotating shaft (74), and the supporting section being in contact with the bottom wall of the pressing portion (711); A clamping block (75) is arranged on the first positioning cylinder (211) of the socket and is clamped with the clamping portion (712).

9. The connector assembly according to any one of claims 5 to 8, characterized in that: The end of the connector socket (2) is detachably and hermetically connected to a socket extension cylinder assembly (3), and a first accommodating cavity (311) is provided inside the socket extension cylinder assembly (3); and / or The end of the connector plug (4) is detachably and hermetically connected to a plug extension cylinder assembly (5), and a second accommodating chamber (511) is provided inside the plug extension cylinder assembly (5).

10. The connector assembly according to any one of claims 5 to 8, characterized in that: The end of the connector socket (2) is connected to a socket end cover (6), and the socket end cover (6) is suitable for being opened when the connector socket (2) is in use and being sealed at the end of the connector socket (2) when the connector socket (2) is not in use.

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