Inlet wire joint sealing structure of display power box

Abstract

The utility model relates to the technical field of display power supplies, in particular to an inlet wire joint sealing structure of a display power box, which comprises an inlet wire seat, one end of the inlet wire seat extends outwards to form a screw, the inside of the screw is of an axial columnar hollow structure, the columnar hollow structure penetrates through the inlet wire seat, the columnar hollow structure is used for wire inlet, and the inlet wire joint sealing structure is used for sealing the inlet wire. A locking nut is arranged on the screw rod, a sealing ring is sleeved on the screw rod at the joint of the wire inlet seat and the screw rod, a limiting ring is sleeved outside the sealing ring, the thickness of the limiting ring is smaller than that of the sealing ring, and the inner diameter of the limiting ring is smaller than the outer diameter of the wire inlet seat at the joint of the limiting ring and the screw rod. The inlet wire joint sealing structure of the display power box can ensure that the sealing performance of the sealing ring between the inlet wire seat and the power box cannot be influenced even if the nut is excessively locked in the installation and matching process of the inlet wire seat and the power box, so as to improve the sealing stability and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of display power supply, in particular to an incoming line connector sealing structure of a display power supply box. Background Art

[0002] In the prior art, for outdoor displays, its sealing is particularly important. The incoming line structure on the power box of the display is currently connected by an incoming line seat, a screw and a nut. The screw on the incoming line seat passes through the incoming line hole on the power box, and a sealing ring is sleeved on the screw, and then the nut is used to lock the connection and seal between the incoming line seat and the power box. However, due to the relatively small overall size of the incoming line seat, the step width formed between the incoming line seat and the screw is small, the blocking of the sealing ring is limited, and the nuts are manually locked in actual assembly, and the locking force cannot be accurately controlled. Therefore, when the nut is over-tightened, the sealing ring will be over-extruded, the sealing ring will deform and expand outward, and partially squeezed out from the outer wall of the incoming line seat, thereby making the sealing effect between the incoming line seat and the power box worse, and even partially no sealing. Moreover, this situation is difficult to occur during the assembly process, so that water seepage occurs during the use of the display and affects normal use. Utility Model Content

[0003] In order to solve the above technical deficiencies, the utility model provides a sealing structure for an incoming line connector of a display power box, which can improve the sealing stability and reliability between the incoming line socket and the power box.

[0004] The utility model discloses a sealing structure for an incoming line connector of a display power box, comprising an incoming line seat, one end of the incoming line seat extending outwardly with a screw rod, the interior of the screw rod is an axial columnar hollow structure, and the columnar hollow passes through the incoming line seat, the columnar hollow structure is used for incoming lines, a locking nut is arranged on the screw rod, a sealing ring is sleeved on the screw rod at the connection between the incoming line seat and the screw rod, a limiting ring is sleeved on the outside of the sealing ring, the thickness of the limiting ring is less than the thickness of the sealing ring, and the inner diameter of the limiting ring is less than the outer diameter of the incoming line seat at the connection with the screw rod.

[0005] The inlet seat includes a connecting part and a hand-holding part. The outer wall of the radial cross-section of the connecting part is a regular hexagon. The outer wall of the hand-holding part is provided with a plurality of axial anti-slip textures. An annular groove is provided between the hand-holding part and the connecting part. The connecting part is connected to the screw rod, and the maximum outer diameter of the connecting part is greater than the inner diameter of the limit ring.

[0006] The outer wall of the radial cross section of the handheld portion also presents a regular hexagonal structure.

[0007] The limiting ring is made of hard metal.

[0008] The utility model provides a sealing structure for the incoming line connector of a display power box, which can ensure that even if the nut is over-tightened during the installation and matching process of the incoming line socket and the power box, it will not affect the sealing performance of the sealing ring between the incoming line socket and the power box, thereby improving the stability and reliability of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the structural front view of the utility model;

[0010] Figure 2 It is a structural sectional view of the utility model;

[0011] Figure 3 It is a structural stereogram of the utility model;

[0012] Figure 4 It is a schematic diagram of the structural explosion of the utility model. DETAILED DESCRIPTION

[0013] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0014] Embodiment 1:

[0015] like Figure 1-Figure 4 As shown, the utility model discloses a sealing structure of an incoming line connector of a display power box, including an incoming line seat 1, a screw rod 2 extending outward from one end of the incoming line seat 1, an axial columnar hollow structure 9 is inside the screw rod 2, and the columnar hollow passes through the incoming line seat 1, the columnar hollow structure 9 is used for incoming lines, a locking nut 3 is arranged on the screw rod 2, a sealing ring 4 is sleeved on the screw rod 2 at the connection between the incoming line seat 1 and the screw rod 2, a limiting ring 5 is sleeved on the outside of the sealing ring 4, the thickness of the limiting ring 5 is less than the thickness of the sealing ring 4, and the inner diameter of the limiting ring 5 is smaller than the outer diameter of the incoming line seat 1 at the connection with the screw rod 2.

[0016] The inlet seat 1 and the screw 2 are an integrated structure. The screw 2 is used to connect with the power box. A through hole is correspondingly provided on the power box. The diameter of the through hole is slightly larger than that of the screw 2. The screw 2 is inserted into the through hole. A sealing ring 4 is sleeved on the screw 2. The sealing ring 4 is located between the power box and the inlet seat 1. At the same time, a limiting ring 5 is sleeved on the outside of the sealing ring 4. When the screw 2 is locked by the locking nut 3, the power box and the inlet seat 1 will squeeze the sealing ring 4. Since the inner side of the sealing ring 4 is supported by the screw 2 and the two sides are supported by the power box and the inlet seat 1, the sealing ring 4 will change shape during the extrusion process, and may even be squeezed out of the inlet seat 1. The design of the limiting ring 5 in this solution can effectively limit the deformation of the sealing ring 4, thereby effectively ensuring the sealing performance between the inlet seat 1 and the power box. When the locking nut 3 locks the screw 2, the sealing performance is more reliable and stable. The thickness of the limiting ring 5 needs to be smaller than the thickness of the sealing ring 4, and the thickness difference between the sealing ring 4 and the limiting ring 5 can be determined according to the actual sealing performance requirements. When the locking nut 3 is locked by the screw 2, the power box and the incoming cable seat 1 will squeeze the sealing ring 4, and the limiting ring 5 is used to limit the deformation of the sealing ring 4 outward, while supporting the power box and the incoming cable seat 1 and controlling the minimum distance between the two. Therefore, it can ensure the sealing performance of the sealing ring 4 while avoiding excessive deformation of the sealing ring 4 caused by excessive extrusion and damage to the sealing performance.

[0017] The columnar hollow structure 9 in the screw rod 2 and the wire inlet seat 1 is used for passing the wire, and the columnar hollow structure 9 and the wire can be sealed by glue potting or the like.

[0018] The inlet seat 1 includes a connecting portion 6 and a handheld portion 7. The outer wall of the radial cross section of the connecting portion 6 is a regular hexagon. The outer wall of the handheld portion 7 is provided with a plurality of axial anti-skid textures. An annular groove 8 is provided between the handheld portion 7 and the connecting portion 6. The connecting portion 6 is connected to the screw rod 2, and the maximum outer diameter of the connecting portion 6 is greater than the inner diameter of the limiting ring 5. In the process of normal installation of the inlet seat 1, in the process of rotation of the locking nut 3, in order to prevent the inlet seat 1 from not rotating, the connecting portion 6 is provided on the inlet seat 1. The connecting portion 6 adopts a regular hexagonal structure, so that the inlet seat 1 can be kept fixed by tools such as a wrench. The anti-skid texture on the handheld portion 7 can make it more comfortable and anti-skid when holding the inlet seat 1, especially when the screw rod 2 on the inlet seat 1 passes through the through hole and initially cooperates with the locking nut 3, the inlet seat 1 can be manually rotated, or the handheld portion 7 can be pinched to keep the inlet seat 1 fixed, and the operation is more convenient. The design of the annular groove 8 can give the connecting portion 6 more operating space for easy operation of a wrench.

[0019] The outer wall of the radial cross section of the hand-held portion 7 is also in a regular hexagonal structure. When the display is used outdoors, if the cable inlet seat 1 needs to be disassembled and the connection portion 6 on the cable inlet seat 1 cannot be connected to the wrench due to other space factors, the wrench can be connected to the hand-held portion 7 in an emergency to ensure that the cable inlet seat 1 can be smoothly disassembled and assembled.

[0020] The limiting ring 5 is made of hard metal material, such as stainless steel, etc., and has high strength and good stability.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be an interactive relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The above description 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 technical personnel in this field 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 simplified 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 still fall within the scope of the technical solution of the present invention.

Claims

1. A sealing structure for an incoming line connector of a display power box, comprising an incoming line seat, characterized in that: A screw rod extends outward from one end of the wire inlet seat, and the interior of the screw rod is an axial cylindrical hollow structure, and the cylindrical hollow structure passes through the wire inlet seat. The cylindrical hollow structure is used for wire inlet, and a locking nut is provided on the screw rod. A sealing ring is provided on the screw rod at the connection between the wire inlet seat and the screw rod, and a limiting ring is provided on the outside of the sealing ring. The thickness of the limiting ring is smaller than the thickness of the sealing ring, and the inner diameter of the limiting ring is smaller than the outer diameter of the wire inlet seat at the connection with the screw rod.

2. The sealing structure for the incoming line connector of a display power supply box according to claim 1 is characterized in that: The inlet seat includes a connecting part and a hand-holding part. The outer wall of the radial cross-section of the connecting part is a regular hexagon. The outer wall of the hand-holding part is provided with a plurality of axial anti-slip textures. An annular groove is provided between the hand-holding part and the connecting part. The connecting part is connected to the screw rod, and the maximum outer diameter of the connecting part is greater than the inner diameter of the limit ring.

3. The sealing structure for the incoming line connector of a display power supply box according to claim 2 is characterized in that: The outer wall of the radial cross section of the handheld portion also presents a regular hexagonal structure.

4. The sealing structure for the incoming line connector of a display power supply box according to claim 1 is characterized in that: The limiting ring is made of hard metal.

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