Waterproof seal tail assembly

Abstract

The application provides a waterproof sealing tail part assembly, which comprises a sealing line body pressing ring, a sleeve-shaped structure with open ends, an outer threaded section arranged at one end of the sealing line body pressing ring, a sealing line body coaxially arranged inside the sealing line body pressing ring, a radially outward skirt arranged on the sealing line body, the skirt capable of abutting against the one end of the sealing line body pressing ring, a tail clamp pressing plate, a sleeve-shaped structure with open ends, an inner threaded section arranged at one end of the tail clamp pressing plate and matched with the outer threaded section, the one end of the tail clamp pressing plate being threadedly connected with the one end of the sealing line body pressing ring, the one end of the tail clamp pressing plate capable of abutting against the skirt, and the inner diameter of the tail clamp pressing plate being smaller than the outer diameter of the sealing line body in a normal state. The sealing line body hole cavity and the conductor are in a clearance fit in an initial state, so that they are detachable, the sealing line body is extruded by the tail clamp pressing plate, so that the hole cavity of the sealing line body is shrunk to be in an interference fit with the conductor, and the sealing of each conductor is realized.

Description

Technical Field

[0001] This specification relates to the field of cable protection technology, specifically to a waterproof sealing tail assembly. Background Technology

[0002] Waterproof sealing tail accessories are widely used in harsh environments such as rain, splashing waves, and high humidity to protect multiple conductors. In these situations, using a molded sleeve to fully enclose the conductors would result in excessive weight increase. This tail accessory structure achieves sealing for a single conductor, resulting in significant weight reduction. Existing sealing tail accessories achieve their seal by interfering with the conductor through a sealing body cavity, but this structure lacks disassembly capability, failing to meet maintenance and inspection needs. Summary of the Invention

[0003] In view of this, the present invention provides a waterproof sealing tail assembly to meet maintenance and inspection requirements.

[0004] This specification provides the following technical solution in its embodiments: A waterproof sealing tail assembly, comprising: a sealing body pressure ring, which is a sleeve-shaped structure with open ends, one end of the sealing body pressure ring having an external thread section; a sealing body, coaxially disposed inside the sealing body pressure ring, the sealing body having a radially extending skirt, the skirt being able to abut against one end of the sealing body pressure ring; and a tail clamp pressure plate, which is a sleeve-shaped structure with open ends, one end of the tail clamp pressure plate having an internal thread section that mates with the external thread section, one end of the tail clamp pressure plate being threadedly connected to one end of the sealing body pressure ring, one end of the tail clamp pressure plate being able to abut against the skirt, and the inner diameter of the tail clamp pressure plate being smaller than the outer diameter of the sealing body under normal conditions.

[0005] Furthermore, the waterproof sealing tail assembly also includes a pressure plate with a receiving through hole for accommodating the sealing body. The pressure plate can clamp one end of the sealing body through the receiving through hole, and the pressure plate can clamp one end of the sealing body radially inward.

[0006] Furthermore, the pressure plate includes an upper clamping plate and a lower clamping plate, both of which have a semi-circular structure. The upper and lower clamping plates are joined together to form a through hole, and the upper and lower clamping plates are connected by screws and can be tightened radially inward.

[0007] Furthermore, the through hole and the sealing ring are coaxially arranged.

[0008] Furthermore, a friction washer is provided between the skirt edge and the tail clamp pressure plate.

[0009] Furthermore, the waterproof sealing tail assembly also includes a tail nut, which is threaded to the other end of the sealing body pressure ring.

[0010] Furthermore, a first receiving space is provided between the tail nut and the sealing body pressure ring, and a spring retainer is provided in the first receiving space.

[0011] Furthermore, a second receiving space is provided between the tail nut and the sealing body pressure ring, and a star-shaped ring is provided in the second receiving space.

[0012] Furthermore, a stop tooth is provided at the other end of the sealing body pressure ring, and a first protrusion and a second protrusion are provided on the inner surface of the star-shaped ring. Along the axial direction of the sealing body pressure ring, the first protrusion and the second protrusion are respectively placed on both sides of the stop tooth.

[0013] Compared with the prior art, the beneficial effects that can be achieved by the above-mentioned at least one technical solution adopted in the embodiments of this specification include: the initial state of the sealing body cavity and the wire is a clearance fit, which makes it detachable; the sealing body is squeezed by the tail clamp pressure plate, thereby shrinking the cavity of the sealing body to make it an interference fit with the wire, thus achieving a seal for each wire; the sealing body is provided with a raised skirt, which can prevent the sealing performance from being compromised due to the gap between the sealing body and the sealing body pressure ring caused by the force on the wire. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the assembly structure according to an embodiment of the present invention;

[0017] Figure 3 This is an embodiment of the present invention. Figure 2 Side view.

[0018] The attached diagram is labeled as follows: 1. Tail nut; 2. Star ring; 3. Spring retainer ring; 4. Sealing body pressure ring; 5. Tail clip; 6. Sealing body; 7. Friction washer; 8. Screw; 9. Tail clip pressure plate; 10. Pressure plate; 11. Drain hole. Detailed Implementation

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0024] like Figures 1 to 3As shown, this embodiment of the invention provides a waterproof sealing tail assembly, including a sealing ring 4, a sealing body 6, and a tail clamping plate 9. The sealing ring 4 has a sleeve-shaped structure with open ends, and one end of the sealing ring 4 is provided with an external thread section. The sealing body 6 is coaxially disposed inside the sealing ring 4, and the sealing body 6 is provided with a radially extending skirt that can abut against one end of the sealing ring 4. The tail clamping plate 9 has a sleeve-shaped structure with open ends, and one end of the tail clamping plate 9 is provided with an internal thread section that mates with the external thread section. One end of the tail clamping plate 9 is threadedly connected to one end of the sealing ring 4, and one end of the tail clamping plate 9 can abut against the skirt. The inner diameter of the tail clamping plate 9 is smaller than the outer diameter of the sealing body 6 under normal conditions.

[0025] The sealing body 6 has a clearance fit with the wire in its initial state, making it detachable. The sealing body 6 is squeezed by the tail clamp 9, which shrinks the cavity of the sealing body 6 to make it press-fit with the wire, thus achieving a seal for each wire. The sealing body 6 has a raised skirt on the outside, which can prevent the sealing body 6 from having a gap between it and the sealing body pressure ring 4 due to the force on the wire, thus preventing damage to its sealing performance.

[0026] It should be noted that in this embodiment of the invention, the tail clamp pressure plate 9 is disposed on the tail clamp 5, and the tail clamp pressure plate 9 is a part of the tail clamp 5. The tail clamp 5 can be assembled from symmetrical semi-circular structures and connected by screws 8. Furthermore, a drainage hole 11 is provided on the tail clamp 5.

[0027] Preferably, a friction washer 7 is provided between the skirt edge and the tail clamping plate 9. Adding the friction washer 7 can reduce the rotational friction between the sealing body 6 and the tail clamping plate 9 during rotation.

[0028] like Figure 3 As shown, in this embodiment, the inner circle φB of the tail clamp pressure plate 9 is smaller than the outer circle φA of the sealing body 6. The tail clamp pressure plate 9 squeezes the outer circle of the sealing body 6, thereby shrinking the cavity of the sealing body 6 so that it is interference-fitted with the wire to achieve the set sealing effect.

[0029] Preferably, the waterproof sealing tail assembly further includes a pressure plate 10, which is provided with a receiving through hole for accommodating the sealing body 6. The pressure plate 10 can be clamped at one end of the sealing body 6 through the receiving through hole, and the pressure plate 10 can clamp one end of the sealing body 6 radially inward.

[0030] The pressure plate 10 is provided, and the radial tightening of the pressure plate 10 can achieve a seal at one end of the sealing body 6, thereby improving the sealing performance of this embodiment of the invention and achieving the purpose of improving the sealing effect. At the same time, the pressure plate 10 is a detachable structure, which facilitates disassembly during subsequent maintenance.

[0031] Specifically, the pressure plate 10 includes an upper clamping plate and a lower clamping plate. Both the upper and lower clamping plates have a semi-circular structure. The upper and lower clamping plates are joined together to form a through hole. The upper and lower clamping plates are connected by screws and can be tightened radially inward.

[0032] In this embodiment, both ends of the upper and lower clamping plates are provided with the aforementioned screws. During assembly, the upper and lower clamping plates can be synchronously contracted by simultaneously tightening the aforementioned screws, thereby achieving uniform radial clamping.

[0033] It should be noted that the aforementioned receiving through hole is coaxially arranged with the sealing body pressure ring 4. Furthermore, the tail clamp pressure plate 9 and pressure plate 10 can use other extrusion methods to compress the sealing body 6, but the inner circle formed by the tail clamp pressure plate 9 and pressure plate 10 should be concentric with the outer circle of the sealing body 6.

[0034] The waterproof sealing tail assembly also includes a tail nut 1, which is threadedly connected to the other end of the sealing body pressure ring 4. A first receiving space is provided between the tail nut 1 and the sealing body pressure ring 4, and a spring retainer 3 is provided in the first receiving space.

[0035] The spring retainer ring 3 can increase the sealing performance between the tail nut 1 and the sealing body pressure ring 4, thereby improving the overall sealing performance of the device.

[0036] A second receiving space is provided between the tail nut 1 and the sealing body pressure ring 4, and a star-shaped ring 2 is provided in the second receiving space. A stop tooth is provided at the other end of the sealing body pressure ring 4, and a first protrusion and a second protrusion are provided on the inner surface of the star-shaped ring 2. Along the axial direction of the sealing body pressure ring 4, the first protrusion and the second protrusion are respectively located on both sides of the stop tooth.

[0037] A star-shaped ring 2, spanning the stop teeth, is press-fitted with the tail nut 1 and the sealing ring 4 to achieve a sealing function at the connection. The outer ring of the star-shaped ring 2 also has a first protrusion and a second protrusion, both of which abut against the tail nut 1. The second protrusion on the inner ring of the star-shaped ring 2 abuts against the sealing ring 4, while the first protrusion is suspended outside the stop teeth.

[0038] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the method embodiments described later are relatively simple in description because they correspond to the system; relevant parts can be referred to the descriptions in the system embodiments.

[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A waterproof sealed tail assembly characterized by, The waterproof sealing tail assembly comprises: a sealing body pressing ring (4) in a sleeve structure with both ends open, one end of the sealing body pressing ring (4) being provided with an external thread section; a sealing body (6) coaxially arranged inside the sealing body pressing ring (4), the sealing body (6) being provided with a radially outward extending skirt, the skirt being capable of abutting against one end of the sealing body pressing ring (4); a tail clamp pressing plate (9) in a sleeve structure with both ends open, one end of the tail clamp pressing plate (9) being provided with an internal thread section matched with the external thread section, one end of the tail clamp pressing plate (9) being threadedly connected with one end of the sealing body pressing ring (4), one end of the tail clamp pressing plate (9) being capable of abutting against the skirt, and the internal diameter of the tail clamp pressing plate (9) being smaller than the external diameter of the sealing body (6) in a normal state. The waterproof sealing tail assembly further comprises a pressing plate (10) provided with an accommodating through hole for accommodating the sealing body (6), the pressing plate (10) being capable of being clamped at one end of the sealing body (6) through the accommodating through hole, and the pressing plate (10) being capable of clamping one end of the sealing body (6) radially inward.

2. The waterproof sealed tail assembly of claim 1, wherein, The pressing plate (10) comprises an upper clamping plate and a lower clamping plate, both of which are in a semicircular structure, the upper clamping plate and the lower clamping plate being butted to form the accommodating through hole, and the upper clamping plate and the lower clamping plate being connected by screws and capable of being tightened radially inward.

3. The waterproof sealed tail assembly of claim 1, wherein, The accommodating through hole is coaxially arranged with the sealing body pressing ring (4).

4. The waterproof sealed tail assembly of claim 1, wherein, A friction washer (7) is arranged between the skirt and the tail clamp pressing plate (9).

5. The waterproof sealed tail assembly of claim 1, wherein, The waterproof sealing tail assembly further comprises a tail screw cap (1) threadedly connected with the other end of the sealing body pressing ring (4).

6. The waterproof sealed tail assembly of claim 5, wherein, A first accommodating space is arranged between the tail screw cap (1) and the sealing body pressing ring (4), and a spring collar (3) is arranged in the first accommodating space.

7. The waterproof sealed tail assembly of claim 6, wherein, A second accommodating space is arranged between the tail screw cap (1) and the sealing body pressing ring (4), and a star washer (2) is arranged in the second accommodating space.

8. The waterproof sealed tail assembly of claim 7, wherein, The other end of the sealing body pressing ring (4) is provided with a stop tooth, the inner surface of the star washer (2) is provided with a first protrusion and a second protrusion, and the first protrusion and the second protrusion are respectively arranged on the two sides of the stop tooth in the axial direction of the sealing body pressing ring (4).

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