Distribution box lead hole joint
A technology of lead hole and distribution box, which is applied in the field of lead hole joints of distribution box, which can solve the problems of leakage hazard, easy damage, component threat, etc., and achieve the effect of convenient and flexible use and good airtightness
Inactive Publication Date: 2018-03-23
苏州好六六智能科技有限公司
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AI Technical Summary
Problems solved by technology
In order to prevent the distribution box from being damaged and ensure its relatively firm structure, it is mostly made of iron sheet material wrapped outside the metal frame. Since the thickness of the iron sheet is relatively thin, the opening of the lead wire opened is relatively sharp. If it is used directly to wear If the wiring harness is installed, it will be easily damaged after being subjected to external forces such as wind or vibration for a long time.
Therefore, in the existing distribution box, there is a lead head made of rubber material at the lead port, which can prevent the friction between the wire harness and the lead port, but the seal between the lead head and the lead port of the distribution box is not enough, and it is also inconvenient. The position of the lead head is adjusted, and it is easy for dust or insects to enter the distribution box, posing a threat to the components in the distribution box
Method used
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Embodiment Construction
[0014] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
[0015] figure 1 and figure 2 A distribution box lead hole joint shown is composed of a joint matched with the distribution box lead hole and a lead head 1 installed on the joint. The lead head 1 is "L" shaped, and the joint is composed of an external joint 3 It is composed of an inner joint 4; the outer surface of the outer joint 3 is provided with a card interface 7 connected to the lead hole of the distribution box, and a bearing 9 is provided in the center, and a connection hole is provided in the center of the bearing 9. The inner joint 4 Installed in the connection hole of the bearing 9, the inner joint 4 and the outer joint 3 are movably connected together by the bearing 9, in order to ensure the sealing connection between the outer joint 3, the inner joint 4 and the bearing 9, and firm, the bearing 9 includes a set The outer ring on the outsid...
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The invention relates to a distribution box lead hole joint. The distribution box lead hole joint consists of a joint and a lead head arranged on the joint, wherein the joint consists of an outer joint and an inner joint; an outer side face of the outer joint is provided with a clamping port connected with a distribution box lead hole; a bearing is arranged in the center of the outer joint; the center of the bearing is provided with a connection hole; the inner joint is arranged in the connection hole of the bearing; the center of the inner joint is provided with an internal thread joint hole;an outer side which is close to an end part of the lead head is provided with an external thread adapter; and the external thread adapter is in threaded fit with the internal thread joint hole. The distribution box lead hole joint and the lead hole of the distribution box are connected hermetically, and the lead head can rotate freely by 360 degrees through the bearing, so that positioning can beperformed according to the specific wiring harness insertion direction. The distribution box lead hole joint is convenient and flexible to use, and has high airtightness. Dust and insects can be prevented from entering the distribution box, and internal components of the distribution box are prevented from being influenced.
Description
technical field [0001] The invention relates to the field of hydropower installation engineering, in particular to a lead hole joint of a distribution box. Background technique [0002] Power distribution box is assembled in closed or semiclosed metal safe by electrical wiring requirement by switchgear, measuring instrument, protective device and auxiliary equipment or on screen width, forms low-voltage distribution equipment. [0003] In order to facilitate the connection of the external wiring harness and the distribution box, the bottom or side of the distribution box is provided with lead holes for threading. In order to prevent the distribution box from being damaged and ensure its relatively firm structure, it is mostly made of iron sheet material wrapped outside the metal frame. Since the thickness of the iron sheet is relatively thin, the opening of the lead wire opened is relatively sharp. If it is used directly to wear If the wiring harness is installed, it will b...
Claims
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IPC IPC(8): H02G3/22H02B1/46
CPCH02G3/22H02B1/46
Inventor 洪梦静
Owner 苏州好六六智能科技有限公司