Plug without gelling installation and connector assembly

Abstract

The utility model provides a non-gelling installation plug and a connector assembly, which comprise a plug shell and a rubber pad arranged on a plug opposite insertion surface, the plug opposite insertion surface is provided with a clamping groove, the rubber pad is provided with a bulge matched with the clamping groove, and the clamping groove is in interference fit with the bulge. According to the utility model, the protrusions and the clamping grooves are arranged to form interference fit, so that the rubber pad can be firmly fixed on the opposite insertion surface of the plug without gluing.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a plug and connector assembly for non-glue installation. Background Art

[0002] like Figure 1 As shown, when the socket and plug of most circular connectors on the market are assembled, the inner convex ring 104 in the connecting nut 101 of the plug presses down the outer edge of the plug housing 102, reduces the distance between the plug housing 102 and the socket, and then presses the rubber pad 103 between the socket and the plug surface to seal and ensure the protection level. In order to prevent the rubber pad 8 from falling off and losing during use, the rubber pad 103 needs to be fixed, but because the overall size of the connector is small, and a crystal head needs to be installed inside, the plug and socket surfaces only form a small annular plane, which makes it difficult to fix the rubber pad 103. Therefore, most connectors use adhesive to fix the rubber pad 103. The adhesive method has the physical properties of the glue, and its fixing reliability will change with temperature, and its fixing reliability will gradually decrease with the increase of time. Once the rubber pad 103 falls off during use, it is easy for the glue surface to be contaminated with dust or impurities, which greatly reduces the sealing function of the connector or even fails, and the product cannot be used. In addition, the rubber pad 108 needs to be positioned by tooling when being fixed to prevent it from being skewed during pasting, and it is difficult to align the center hole. Utility Model Content

[0003] The utility model aims to provide a plug and connector assembly for glue-free installation, which forms an interference fit by arranging protrusions and slots, and can firmly fix the rubber pad on the plug-in surface without gluing.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a plug for glue-free installation, including a plug housing and a rubber pad arranged on the plug-in surface, the plug-in surface is provided with a card slot, the rubber pad is provided with a protrusion matching the card slot, and the card slot and the protrusion form an interference fit.

[0005] Preferably, the protrusion includes a connecting column located on the surface of the rubber pad and a clamp located at the end of the connecting column.

[0006] Preferably, the diameter of the clamp head is larger than the diameter of the connecting column.

[0007] Preferably, the card slot includes a sunken platform on the plug shell that is spaced apart from the plug-in surface, and the sunken platform is used to cooperate with the clamping head; the card slot also includes a groove belly extending from the plug-in surface to the sunken platform, the radial dimension of the groove belly is consistent with the radial dimension of the connecting column, and the groove belly is used to cooperate with the connecting column.

[0008] Preferably, the groove belly extends toward the outside of the plug to form a groove neck and a groove opening in sequence, wherein the opening width of the groove opening is greater than the width of the connecting column, and the groove opening is used for the connecting column to enter the groove belly from the side of the slot; the width of the groove neck is narrower than the width of the connecting column, and is used to make the connecting column and the slot form an interference fit.

[0009] Preferably, the height of the sink is higher than the height of the chuck.

[0010] Preferably, a positioning column corresponding to the protrusion is provided on the rubber pad, and a positioning hole matching the positioning column is provided on the end surface of the plug housing.

[0011] Preferably, the height of the positioning column is lower than the height of the protrusion.

[0012] Preferably, the plug housing is provided with a buckle groove on the outer edge of the housing, for the buckle on the connecting nut to pass through.

[0013] A connector assembly for glue-free installation also includes a socket used in conjunction with the glue-free installation plug, including a socket-to-plug surface, the outer ring of the socket-to-plug surface is provided with three curved grooves, and the three curved grooves are screwed and connected with a connecting nut.

[0014] The beneficial effects of the utility model are:

[0015] The glue-free installation plug has a plurality of slots evenly arranged along the circumference of the outer edge of the plug housing, and the rubber pad is provided with protrusions matching the slots, the width of the slots is narrower than the width of the protrusions, and the slots and the protrusions form an interference fit. The rubber pad can be firmly fixed on the plug-in surface without gluing, avoiding the use of glue bonding, eliminating the various disadvantages of the existing use of glue mentioned in the background technology, and improving the fixing reliability of the rubber pad during the product life cycle.

[0016] The positioning column of the rubber pad of the non-adhesive installation plug is matched with the positioning hole on the end face of the plug shell for positioning, so that the installation direction of the rubber pad is unique, thereby avoiding the occurrence of wrong installation.

[0017] The cooperation between the positioning column of the rubber pad of the glue-free installation plug and the positioning hole on the end face of the plug shell can achieve precise positioning. Compared with the glue pasting method in the prior art, it is easier to align the center hole of the rubber pad with the center hole of the plug shell, thereby preventing interference between the crystal head and the rubber pad during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of an existing circular connector plug.

[0020] Figure 2 It is a structural schematic diagram of the glue-free installation plug of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the non-glue installation plug protrusion of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the glue-free installation plug slot of the utility model.

[0023] Figure 5 It is a schematic diagram of the position of the slot neck and the notch of the glue-free installation plug of the utility model.

[0024] Figure 6 This is a schematic diagram of the position of the positioning column of the glue-free installation plug of the utility model.

[0025] Figure 7 This is a schematic diagram of the position of the positioning hole of the glue-free installation plug of the utility model.

[0026] Figure 8 It is a schematic diagram of the position of the buckle slot of the glue-free installation plug of the utility model.

[0027] Fig. 9 This is a schematic diagram of the position of the plug buckle for glue-free installation of the utility model.

[0028] Fig.10 It is a structural schematic diagram of the plug housing of the utility model without glue installation.

[0029] Fig.11 It is a structural schematic diagram of the glue-free installation socket of the utility model.

[0030] Figure 1 In the figure, 101, a connecting nut, 102, a plug housing, 103, a rubber pad, and 104, an inner convex ring.

[0031] Figure 2-11In the figure, 1. three curved grooves, 2. socket to plug surface, 3. plug to plug surface, 4. connecting nut, 5. buckle, 6. wire pressing nut, 7. plug housing, 8. rubber pad, 9. inner convex ring, 10. buckle groove, 11. outer edge of housing, 12. slot, 13. protrusion, 14. positioning column, 15. connecting column, 16. clamp head, 17. sleeve, 18. sink, 19. positioning hole, 20. notch, 21. slot neck, 22. slot belly. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0034] At the same time, it should be noted that: unless otherwise defined, the technical terms or scientific terms used in this article should be the usual meanings understood by people with general skills in the technical field to which the utility model belongs. The meaning of "multiple" used in the patent application specification and claims of this utility model is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front end", "rear end", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the utility model without substantial changes in the technical content.

[0035] The present invention is further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0036] The utility model discloses a plug and connector assembly for glue-free installation, including a plug and a socket for glue-free installation. During the plugging and unplugging process, the socket and the plug end crystal head have relative displacement, and the risk of the rubber pad 8 being installed on the socket plug surface 2 falling off increases, so it is usually installed on the plug plug surface 3. Figure 2As shown, the glue-free installation plug includes a plug-to-insertion surface 3, a connecting nut 4 and a plug housing 7, wherein a rubber pad 8 is provided at the plug-to-insertion surface 3, and the plug housing 7 is provided with a plurality of grooves 12 evenly arranged along the circumference on the outer edge 11 of the housing, and a protrusion 13 matching the groove 12 is provided on the rubber pad 8, wherein the width of the groove 12 is narrower than that of the protrusion 13, and the groove 12 and the protrusion 13 form an interference fit, and the groove 12 and the protrusion 13 cooperate to fix the rubber pad 8.

[0037] like Figure 3 As shown, the protrusion 13 includes a connecting column 15 located on the surface of the rubber pad 8 and a clamping head 16 located at the end of the connecting column 15. The diameter of the clamping head 16 is larger than the diameter of the connecting column 15, preventing the protrusion 13 from escaping from the slot 12 along the axial direction, thereby ensuring the firmness of the fit between the protrusion 13 and the slot 12.

[0038] like Figure 4 As shown, the slot 12 includes a recessed platform 18 spaced apart from the plug-to-plug surface 3 on the plug housing 7, and the recessed platform 18 is used to cooperate with the clamping head 16. The slot 12 also includes a groove belly 22 extending from the plug-to-plug surface 3 to the recessed platform 18, and the radial dimension of the groove belly 22 is consistent with the radial dimension of the connecting column 15, and the groove belly 22 is used to cooperate with the connecting column 15. The height of the recessed platform 18 is higher than the height of the clamping head 16, that is, after the protrusion 13 is installed in the slot 12, the clamping head 16 does not expose the recessed platform 18, so as to prevent the inner convex ring 9 of the connecting nut 4 from pressing the clamping head 16 when locking.

[0039] like Figure 5 As shown, the slot 12 extends toward the outside of the plug to form a slot neck 21 and a notch 20 in sequence, the opening width of the notch 20 is greater than the width of the connecting column 15, and the notch 20 is used for the connecting column 15 to enter the slot belly 22 from the side of the slot 12. The width of the slot neck 21 is narrower than the width of the connecting column 15, and is used to form an interference fit between the connecting column 15 and the slot 12, so that the connecting column 15 is not easy to fall out after entering the slot belly 22.

[0040] like Figure 6 As shown, the rubber pad 8 is provided with a positioning column 14 corresponding to the protrusion 13, and the height of the positioning column 14 is lower than the height of the protrusion 13 to avoid interference when the protrusion 13 and the slot 12 are in interference fit. Figure 7 As shown, the end surface of the plug housing 7 is provided with a positioning hole 19 matching the positioning column 14. The rubber pad 8 and the end surface of the plug housing 7 are quickly positioned to prevent mis-assembly, and the rubber pad 8 is prevented from rotating around the protrusion 13 along the circumference and causing mis-assembly.

[0041] like Figure 8 As shown, the plug housing 7 is provided with buckle grooves 10 evenly along the circumference on the outer edge 11 of the housing. Fig. 9 As shown, the connecting nut 4 is provided with a buckle 5 matching the buckle groove 10. When the glue-free installation plug is assembled, the buckle groove 10 and the buckle 5 are matched and positioned.

[0042] like Fig.10 As shown, the plug housing 7 includes a sleeve 17 and a housing outer edge 11, wherein the sleeve 17 is used for assembling the connection nut 4 and installing the crystal plug and the wire, and the housing outer edge 11 is mainly used to bear the pressure applied by the inner convex ring 9 of the connection nut 4 when locking, and is also used to squeeze the rubber pad 8 with the plug surface 2 of the socket to achieve sealing. The inner convex ring 9 of the connection nut 4 presses down the housing outer edge 11 of the plug housing 7, thereby reducing the distance between the plug housing 7 and the socket, and compressing the rubber pad 8 at the plug surface 3, so that the sealing performance of the rubber pad 8 between the plug surfaces is improved.

[0043] like Fig.11 As shown, the glueless installation socket includes a socket-to-insert surface 2, and the outer ring of the socket-to-insert surface 2 is provided with a three-curved groove 1, and the three-curved groove 1 is screwed and connected with the connecting nut 4. The glueless installation socket and the glueless installation plug are locked and matched by rotating the three-curved groove 1.

[0044] It should be noted that the parts not described in detail in the above embodiments are all prior art.

[0045] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plug for glue-free installation, comprising a plug housing (7) and a rubber pad (8) arranged on a plug-to-plug surface (3), Features: A slot (12) is provided on the plug-to-insertion surface (3), and a protrusion (13) matching the slot (12) is provided on the rubber pad (8), so that the slot (12) and the protrusion (13) form an interference fit.

2. A plug for glue-free installation according to claim 1, Features: The protrusion (13) comprises a connecting column (15) located on the surface of the rubber pad (8) and a clamping head (16) located at the end of the connecting column (15).

3. A plug for glue-free installation according to claim 2, Features: The diameter of the clamp (16) is greater than the diameter of the connecting column (15).

4. A plug for glue-free installation according to claim 3, Features: The card slot (12) comprises a recessed platform (18) arranged on the plug housing (7) at a distance from the plug-to-plug surface (3), and the recessed platform (18) is used to cooperate with the clamping head (16); the card slot (12) further comprises a groove belly (22) extending from the plug-to-plug surface (3) to the recessed platform (18), the radial dimension of the groove belly (22) is consistent with the radial dimension of the connecting column (15), and the groove belly (22) is used to cooperate with the connecting column (15).

5. A plug for glue-free installation according to claim 4, Features: The groove belly (22) extends toward the outside of the plug to form a groove neck (21) and a groove opening (20) in sequence; the opening width of the groove opening (20) is greater than the width of the connecting column (15); the groove opening (20) is used for the connecting column (15) to enter the groove belly (22) from the side of the slot (12); the width of the groove neck (21) is narrower than the width of the connecting column (15) and is used for forming an interference fit between the connecting column (15) and the slot (12).

6. A plug for glue-free installation according to claim 4, Features: The height of the sink (18) is higher than the height of the clamping head (16).

7. A plug for glue-free installation according to claim 1, Features: The rubber pad (8) is provided with a positioning column (14) corresponding to the protrusion (13), and the end surface of the plug housing (7) is provided with a positioning hole (19) matching the positioning column (14).

8. A plug for glue-free installation according to claim 7, Features: The height of the positioning column (14) is lower than the height of the protrusion (13).

9. A plug for glue-free installation according to claim 1, Features: The plug housing (7) is provided with a buckle groove (10) on its housing outer edge (11), which is used for the buckle (5) on the connecting nut (4) to pass through.

10. A connector assembly for glue-free installation, comprising the glue-free installation plug according to any one of claims 1 to 9, and also comprising a socket used in conjunction with the glue-free installation plug, Features: It comprises a socket-to-insert surface (2), wherein the outer ring of the socket-to-insert surface (2) is provided with three curved grooves (1), and the three curved grooves (1) are screwed and connected to a connecting nut (4).

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