CN204706850U - A kind of Junction box assembly - Google Patents

A kind of Junction box assembly Download PDF

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Publication number
CN204706850U
CN204706850U CN201520497881.2U CN201520497881U CN204706850U CN 204706850 U CN204706850 U CN 204706850U CN 201520497881 U CN201520497881 U CN 201520497881U CN 204706850 U CN204706850 U CN 204706850U
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China
Prior art keywords
screw
cover plate
hole
junction box
box assembly
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Active
Application number
CN201520497881.2U
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Chinese (zh)
Inventor
阎阳
杨云峰
王国辉
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CRRC Zhuzhou Electric Co Ltd
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CSR Zhuzhou Electric Co Ltd
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Priority to CN201520497881.2U priority Critical patent/CN204706850U/en
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Publication of CN204706850U publication Critical patent/CN204706850U/en
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Abstract

The utility model discloses a kind of Junction box assembly, comprise cover plate, connecting plate and the screw for connecting described cover plate and connecting plate, described cover plate is provided with the through hole passed for screw, described connecting plate has stepped hole, one end that described stepped hole size is less be provided with can with the screw thread of described screw fit, described screw is socketed with the elastomeric element for preventing described screw from coming off in the through hole of described cover plate.Junction box assembly provided by the utility model by arranging described elastomeric element on described screw, utilize the frictional force between described elastomeric element and described screw, effectively avoid described screw to come off in the through hole of described cover plate, and then avoid the problem of the equipment operational reliability difference caused due to described toner screw, and effectively raise the operating efficiency of operating personnel, simple, convenient, be applicable to various containing in the equipment of terminal box.

Description

A kind of Junction box assembly
Technical field
The utility model relates to terminal box apparatus field, particularly relates to a kind of Junction box assembly.
Background technology
Some equipment are being carried out in the process of installation and maintenance, need often to dismantle the cover plate of the Junction box assembly of equipment, in the unloading process of butted line box device cover plate, screw is needed to take off, because the parts such as screw, pad volume is little, not easily place, cause the finding such as screw, pad to be very easy to lose.
When environmental condition is more severe, the equipment such as worked in the environment such as oil field, colliery, boats and ships, the degree of protection of operational environment butted line box device requires very high, part once lose to need on polishing Junction box assembly all screws can starting device again, bring inconvenience to site operation personnel, reduce operating efficiency, even affect equipment reliability of operation.
Therefore, how preventing the screw in Junction box assembly from falling, is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of Junction box assembly, and this Junction box assembly can effectively prevent screw from falling, simple, convenient, can effectively ensure equipment reliability of operation, improve operating efficiency.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of Junction box assembly, comprise cover plate, connecting plate and the screw for connecting described cover plate and connecting plate, described cover plate is provided with the through hole passed for screw, described connecting plate has stepped hole, one end that described stepped hole size is less be provided with can with the screw thread of described screw fit, described screw is socketed with the elastomeric element for preventing described screw from coming off in the through hole of described cover plate.
Preferably, sealing gasket is provided with between described cover plate and described connecting plate.
Preferably, described elastomeric element is specially O RunddichtringO, and the race diameter of described O RunddichtringO is greater than the through-hole diameter of described cover plate.
Preferably, described screw is specially soket head cap screw.
Preferably, described screw is provided with pad near one end of head of screw.
Preferably, described connecting plate is provided with at least two stepped holes, and described cover plate is provided with at least two through holes, and described through hole and described stepped hole one_to_one corresponding.
Junction box assembly provided by the utility model, comprise cover plate, connecting plate and the screw for connecting described cover plate and connecting plate, described cover plate is provided with the through hole passed for screw, described connecting plate has stepped hole, one end that described stepped hole size is less be provided with can with the screw thread of described screw fit, described screw is socketed with the elastomeric element for preventing described screw from coming off in the through hole of described cover plate.This Junction box assembly by arranging described elastomeric element on described screw, utilize the frictional force between described elastomeric element and described screw, effectively avoid described screw to come off in the through hole of described cover plate, and then avoid the problem of the equipment operational reliability difference caused due to described toner screw, and effectively raise the operating efficiency of operating personnel, simple, convenient, be applicable to various containing in the equipment of terminal box.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of embodiment of Junction box assembly provided by the utility model;
The structure for amplifying schematic diagram that Fig. 2 is part A shown in Fig. 1.
Embodiment
Core of the present utility model is to provide a kind of Junction box assembly, and this Junction box assembly can effectively prevent screw from falling, and improves the operating efficiency of operating personnel significantly, ensure that device security runs reliably.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of embodiment of Junction box assembly provided by the utility model, the structure for amplifying schematic diagram that Fig. 2 is part A shown in Fig. 1.
In this embodiment, Junction box assembly comprises cover plate 3, connecting plate 1 and the screw 4 for connecting cover plate 3 and connecting plate 1, cover plate 3 is provided with the through hole passed for screw 4, connecting plate 1 has stepped hole, one end that stepped hole size is less is provided with the screw thread that can coordinate with screw 4, screw 4 is socketed with the elastomeric element 5 for preventing screw 4 from coming off in the through hole of cover plate 3.Elastomeric element 5 is arranged in the space of the larger one end of stepped hole size, and the frictional force between elastomeric element 5 and screw 4 can prevent elastomeric element 5 from coming off in screw 4, and the size of elastomeric element 5 should be greater than the clear size of opening of cover plate 3.
When processing this Junction box assembly, first on connecting plate 1, machining needs the stepped hole of number, processing and stepped hole through hole one to one on cover plate 3, then screw 4 is inserted in the through hole of cover plate 3, before screw thread screw 4 being screwed into stepped hole, first elastomeric element 5 is inserted in screw 4, then screw 4 is tightened in the screwed hole of stepped hole, complete being fixedly connected with of cover plate 3 and connecting plate 1.Connecting plate 1 can be provided with at least two stepped holes, and cover plate 3 is provided with at least two through holes, and through hole and stepped hole one_to_one corresponding.The number of stepped hole and through hole, should set according to real needs, such as, for larger-size terminal box, multiple stepped hole and through hole are then set, when terminal box size is less, then can realizes the firm connection of cover plate 3 and connecting plate 1 without the need to too many stepped hole and through hole, not be further qualified herein.
When needs dismounting cover plate 3, back-outed from the screwed hole of stepped hole by screw 4, cover plate 3 is separated with connecting plate 1, and now, due to the restriction of elastomeric element 5, screw 4 cannot come off from through hole.Here it should be noted that, the size of elastomeric element 5 should be greater than the clear size of opening of cover plate 3, just can play the object preventing screw 4 from coming off.
Concrete, in stepped hole, the diameter of screwed hole can be M8, and in stepped hole, the pore diameter size of the larger one end of diameter can be Φ 13, and cover plate 3 has the through hole of Φ 8.5, the diameter of screw 4 is similarly M8.Through-hole diameter on cover plate 3 slightly larger than the diameter of screw 4, should facilitate the insertion of screw 4; The hole dimension of the larger one end of stepped hole diameter should be greater than the size of elastomeric element 5, so that elastomeric element 5 is put into.Certainly, the size of stepped hole and through hole can adjust as required, is not limited to the size given by the present embodiment.
More specifically, elastomeric element 5 can be O RunddichtringO, and the race diameter of O RunddichtringO is greater than the through-hole diameter of cover plate 3.O RunddichtringO and screw 4 can better be fitted, and frictional force between screw 4 is comparatively large, can better prevent screw 4 from coming off.Certainly, elastomeric element 5 also can be the elastomeric element of other shapes, such as oval or square, every can be socketed on screw 4 and and frictional force between screw 4 screw 4 can be stoped to come off, and size is greater than the elastomeric element of cover plate 3 clear size of opening, be not limited to shape and size given in the present embodiment.
In addition, in order to avoid etchant gas or other impurity enter junction box, cause the faults such as line short, sealing gasket 2 is also provided with between cover plate 3 and connecting plate 1, before cover plate 3 is fixedly connected with connecting plate 1, first sealing gasket 2 is placed between cover plate 3 and connecting plate 1, then cover plate 3 and connecting plate 1 is being fixed together.
Screw 4 is specifically as follows the soket head cap screw 4 of easy accessibility, and screw 4 can also be provided with pad near one end of head of screw, to increase the frictional force between screw 4 and cover plate 3, improves the useful life of screw 4.
This Junction box assembly by arranging elastomeric element 5 on screw 4, utilize the frictional force between elastomeric element 5 and screw 4, effectively avoid screw 4 to come off in the through hole of cover plate 3, and then avoid because screw 4 comes off on the impact of equipment operational feasibility, and effectively raise the operating efficiency of operator, this Junction box assembly is simple, convenient, is applicable to various containing in the equipment of terminal box.
Above Junction box assembly provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and execution mode, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection range of the utility model claim.

Claims (6)

1. a Junction box assembly, it is characterized in that, comprise cover plate (3), connecting plate (1) and the screw (4) for connecting described cover plate (3) and described connecting plate (1), described cover plate (3) is provided with the through hole passed for described screw (4), (1) has stepped hole to described connecting plate, one end that described stepped hole size is less is provided with the screw thread that can coordinate with described screw (4), described screw (4) is socketed with the elastomeric element (5) for preventing described screw (4) from coming off in the through hole of described cover plate (3).
2. Junction box assembly according to claim 1, is characterized in that, is provided with sealing gasket (2) between described cover plate (3) and described connecting plate (1).
3. Junction box assembly according to claim 1 and 2, is characterized in that, described elastomeric element (5) is specially O RunddichtringO, and the race diameter of described O RunddichtringO is greater than the through-hole diameter of described cover plate (3).
4. Junction box assembly according to claim 3, is characterized in that, described screw (4) is specially soket head cap screw.
5. Junction box assembly according to claim 4, is characterized in that, described screw (4) is provided with pad near one end of head of screw.
6. Junction box assembly according to claim 1, is characterized in that, described connecting plate (1) is provided with at least two stepped holes, and described cover plate (3) is provided with at least two through holes, and described through hole and described stepped hole one_to_one corresponding.
CN201520497881.2U 2015-07-10 2015-07-10 A kind of Junction box assembly Active CN204706850U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520497881.2U CN204706850U (en) 2015-07-10 2015-07-10 A kind of Junction box assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520497881.2U CN204706850U (en) 2015-07-10 2015-07-10 A kind of Junction box assembly

Publications (1)

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CN204706850U true CN204706850U (en) 2015-10-14

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CN201520497881.2U Active CN204706850U (en) 2015-07-10 2015-07-10 A kind of Junction box assembly

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105354904A (en) * 2015-11-20 2016-02-24 北京天诚盛业科技有限公司 Biological recognition entrance guard device, and working method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105354904A (en) * 2015-11-20 2016-02-24 北京天诚盛业科技有限公司 Biological recognition entrance guard device, and working method thereof

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