CN207033926U - A kind of terminal box and fixing device - Google Patents
A kind of terminal box and fixing device Download PDFInfo
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- CN207033926U CN207033926U CN201720961194.0U CN201720961194U CN207033926U CN 207033926 U CN207033926 U CN 207033926U CN 201720961194 U CN201720961194 U CN 201720961194U CN 207033926 U CN207033926 U CN 207033926U
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- screw
- expansion tube
- box
- fixing device
- fixed
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Abstract
This application discloses a kind of fixing device, including：Expansion tube, expansion tube is along the circumferential direction enclosed to put by more valve expanding blocks to be formed, and has the screwed hole surrounded by more valve expanding blocks inside expansion tube, and the aperture of screwed hole is gradually reduced from precession end to unscrewing end, and the precession end of more valve expanding blocks is fixed on annular pipe cap；Screw, it is connected with screwed hole, with the precession of screw, screw radially struts the unscrewing end of expanding block.During work, expansion tube is passed through in member mounting holes to be fixed, in screw precession screwed hole, screw outwards struts the unscrewing end of expansion tube, so as to which part to be fixed is fixed in swelling, completes installation and fixes.And realized and fixed by tension force, it is not easy to loosen, it is fixed.During dismounting, screw is directly screwed out, expansion tube, easy disassembly are taken out in the unscrewing end of expansion tube to contract from mounting hole.Disclosed herein as well is a kind of terminal box of the application fixing device.
Description
Technical field
Fixed disassembly technical field is the utility model is related to, more particularly to a kind of fixing device.Further relating to a kind of application should
The terminal box of fixing device.
Background technology
Terminal box is the part commonly used in electrical equipment, for inside installation and protection circuit plate and electric elements.Terminal box master
To include lid, box, circuit board and fixed seat, circuit board is generally fixed on box by screw, and box passes through screw again
It is fixed in fixed seat.Terminal box uses this fixed form, and dismounting is inconvenient, and directly fixed by screw, exists easily
The problem of departing from is loosened, fixation is insecure.
In summary, how to realize fast assembling-disassembling and be firmly fixed, it is urgently to be resolved hurrily to become those skilled in the art
Problem.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of fixing device, to realize fast assembling-disassembling and firm
It is fixed.
Another purpose of the present utility model is to provide a kind of terminal box of the application fixing device, to realize terminal box
Fast assembling-disassembling and be firmly fixed.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of fixing device, including：
Expansion tube, the expansion tube is along the circumferential direction enclosed to put by more valve expanding blocks to be formed, have inside the expansion tube by
The screwed hole that more valve expanding blocks surround, the aperture of the screwed hole are gradually reduced from precession end to unscrewing end, more valves
The precession end of expanding block is fixed on annular pipe cap；
Screw, it is connected with the screwed hole, with the precession of the screw, the screw is by the rotation of the expanding block
Go out end radially to strut.
Preferably, in above-mentioned fixing device, the unscrewing end of the expansion tube is arc roof construction.
Preferably, in above-mentioned fixing device, there is spacing gap between the two neighboring expanding block.
Preferably, in above-mentioned fixing device, the expansion tube is plastic insulating tube.
Preferably, in above-mentioned fixing device, the screw is insulating screw.
Preferably, in above-mentioned fixing device, the insulating screw is nylon screw.
The utility model additionally provides a kind of terminal box, including lid, box, fixed seat and wiring board, the wiring board
In the box, the lid is fastened on the box, and the wiring board, the box and the fixed seat pass through such as
Fixing device described in any of the above item one-time fixes connection.
Preferably, in above-mentioned terminal box, the expansion tube of the fixing device is through the bottom plate of the box and described
Fixed seat, for the annular pipe cap of the expansion tube between the wiring board and the bottom plate of the box, the screw passes through institute
Wiring board is stated to be threadedly coupled with the expansion tube, the unscrewing end of the expansion tube is radially outward opened, fixed seat described in swelling and
The box.
Preferably, in above-mentioned terminal box, the installation coordinated with the expansion tube is offered on the bottom plate of the box
Hole, the limited block with the circumferentially spacing cooperation in the spacing gap of the expansion tube is provided with the inwall of the mounting hole.
Preferably, in above-mentioned terminal box, the lid and the box are plastic material, and the fixed seat is gold
Belong to material or plastic material.
Compared with prior art, the beneficial effects of the utility model are：
In fixing device provided by the utility model, expansion tube is along the circumferential direction enclosed to put by more valve expanding blocks to be formed, expansion
There is the screwed hole surrounded by these expanding blocks inside pipe, the aperture of screwed hole is gradually reduced from precession end to unscrewing end, these
The precession end of expanding block is fixed on annular pipe cap；The screwed hole of screw and expansion tube is connected, with the precession of screw, spiral shell
Silk radially struts the unscrewing end of expanding block.During work, expansion tube is passed through in member mounting holes to be fixed, screw
In precession screwed hole, screw outwards struts the unscrewing end of expansion tube, and so as to which part to be fixed is fixed in swelling, it is solid to complete installation
It is fixed.And realized and fixed by tension force, it is not easy to loosen, it is fixed.During dismounting, screw is directly screwed out, expansion tube
Expansion tube, easy disassembly are taken out from mounting hole to contract in unscrewing end.
Terminal box in the utility model uses the fixing device in the application, so as to disposable by fixing device
The box of terminal box, fixed seat, wiring board are fixed together, facilitate the installation and removal of terminal box.And fixed by tension force
Terminal box, compared than in general screw, it is not easy to which loose or dislocation, fixation are more firm.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of structural representation for fixing device that the utility model embodiment provides；
Fig. 2 is operating diagram when a kind of fixing device that the utility model embodiment provides is in unlocked state；
Fig. 3 is operating diagram when a kind of fixing device that the utility model embodiment provides is in stationary state；
Fig. 4 is Fig. 3 half-section diagram；
A kind of decomposing schematic representation for terminal box that Fig. 5 the utility model embodiments provide；
Fig. 6 is the close-up schematic view of a-quadrant in Fig. 5；
Fig. 7 is a kind of structural representation for terminal box that utility model embodiment provides.
Wherein, 1 it is screw, 2 be expansion tube, 21 be annular pipe cap, 22 be screwed hole, 23 be expanding block, 24 is limited interdigit
Gap, 3 be wiring board, 4 be box, 5 be fixed seat, 6 be lid.
Embodiment
Core of the present utility model there is provided a kind of fixing device, realizes fast assembling-disassembling and is firmly fixed.
The utility model additionally provides a kind of terminal box of the application fixing device, realize terminal box fast assembling-disassembling and
It is firmly fixed.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
It refer to shown in Fig. 1-Fig. 4, the utility model embodiment provides a kind of fixing device, and it includes the He of expansion tube 2
Screw 1.Wherein, expansion tube 2 is along the circumferential direction enclosed to put and formed by more valve expanding blocks 23, and the inside of expansion tube 2 has to be expanded by more valves
The screwed hole 22 that block 23 surrounds, i.e. expansion tube 2 are formed a circle by multiple expanding blocks 23 of split, formation interior bone, on through hole
It is provided with screw thread；The quantity of expanding block 23 can be two, three, four, five or more；The aperture of screwed hole 22 by
Precession end is gradually reduced to unscrewing end, and the precession end of these expanding blocks 23 is each attached on annular pipe cap 21, and annular pipe cap 21 is in
Cyclic structure, the via of annular pipe cap 21 connect with screwed hole 22, it is preferable that the external diameter of annular pipe cap 21 is more than expanding block 23
External diameter, form positioning step；Screw 1 is connected with screwed hole 22, and with the precession of screw 1, screw 1 is by the rotation of expanding block 23
Go out end radially to strut.
During work, expansion tube 2 is passed through in member mounting holes to be fixed, screw 1 is along the direction of arrow precession spiral shell in Fig. 1
In pit 22, because the aperture of screwed hole 22 is gradually reduced from precession end to unscrewing end, therefore, with the continuous precession of screw 1,
Screw 1 outwards struts the unscrewing end of expansion tube 2, so as to which part to be fixed is fixed in swelling, completes installation and fixes.And by swollen
Clamp force, which is realized, fixes, it is not easy to loosen, it is fixed.During dismounting, screw 1 is directly screwed out, the unscrewing end of expansion tube 2 is certainly
Radially-inwardly shunk under the effect of body restoring force, expansion tube 2 can be taken out from mounting hole, easy disassembly.
As shown in figure 1, further, in the present embodiment, the unscrewing end of expansion tube 2 is arc roof construction.That is expansion tube 2
Unscrewing end is in the state of non-swelling, and end is in arc dome-shaped, so, facilitates expansion tube 2 to be put into mounting hole, and the horizontal stroke of unscrewing end
Cross-sectional outer diameter is gradually reduced from precession end to unscrewing end, is made the wall thickness of unscrewing end will not be too thick, is facilitated screw that unscrewing end is outside
Strut.Certainly, the unscrewing end of expansion tube 2 can also be flat-tope structure or cone structure etc..
As shown in figures 1 to 6, in the present embodiment, there is spacing gap 24 between two neighboring expanding block 23, limit is set
Interdigit gap 24 can coordinate with being provided with the mounting hole 41 of limited block 411, realize the circumferential limit between expansion tube 2 and mounting hole 41
Position, prevent that expansion tube 2 is mounted opposite hole 41 and slided screw 1, so as to jail easier for installation during precession and screwing out
Gu.Certainly, it can also be become placed against between two neighboring expanding block 23, be not provided with spacing gap 24, but in expanding block 23
Surface sets stopper slot.Or directly realized by the frictional force of expanding block 23 and mounting hole 41 circumferential spacing.
In order to realize the insulation of fixing device, expansion tube 2 is plastic insulating tube.
Further, the screw 1 in the present embodiment is insulating screw, further improves insulation effect.It is highly preferred that insulation
Screw is nylon screw.Certainly, insulating screw can also be rigid insulation plastics screw, wood screws etc..Will for insulating properties
Not high product is sought, screw 1 can use metal screws.
Based on the fixing device described by any of the above embodiment, the utility model embodiment additionally provides a kind of wiring
Box, as shown in Fig. 2-Fig. 7, terminal box includes lid 6, box 4, fixed seat 5 and wiring board 3；Wherein, wiring board 3 is located at box 4
Interior, lid 6 is fastened on box 4, and wiring board 3, box 4 and fixed seat 5 pass through the fixation as described by any of the above embodiment
Device one-time fixes connection.
Terminal box offers corresponding installation when assembling fixed in wiring board 3, the bottom plate of box 4 and fixed seat 5
Hole, disposably the box 4 of terminal box, fixed seat 5, wiring board 3 can together be fixed by fixing device, that is, realize terminal box
Multiple parts the installation and removal for one-time fixing connection, facilitating terminal box.And fixed by the tension force of fixing device
Terminal box, compared than in general screw, fixing device is not easy loose or dislocation, and fixation is more firm.
As shown in figs 2-4, the present embodiment optimizes to the fixed form of fixing device, the expansion tube 2 of fixing device
Through the bottom plate and fixed seat 5 of box 4, the annular pipe cap 21 of expansion tube 2 is located between wiring board 3 and the bottom plate of box 4, annular
The both ends of pipe cap 21 are connected on the bottom plate and wiring board 3 of box 4 respectively, screw 1 through wiring board 3 and with the screw thread of expansion tube 2
Connection, the nut of screw 1 is pressed on wiring board 3, with the precession of screw 1, screw 1 by the unscrewing end of expansion tube 2 radially outward
Strut, wiring board 3 is pressed on annular pipe cap 21 by the swelling fixed seat 5 of expansion tube 2 and box 4, screw 1, it is achieved thereby that line
Road plate 3, the bottom plate of box 4 and fixed seat 5 one-time fix installation.During dismounting, screw 1 is screwed out, takes out expansion tube 2.
Certainly, fixing device can also use other fixed forms, for example, expansion tube 2 is sequentially passed through into wiring board 3, box
The bottom plate and fixed seat 5 of son 4, by the direct precession screwed hole 22 of screw 1, expansion tube 2 are strutted, wiring board 3, the bottom of box 4
Plate and fixed plate 5 are fixed by the swelling of expansion tube 2.As long as fixing together for multiple parts can be realized.
Fixing device in the application is not only used in terminal box, can be applied in other equipment for needing fixation
On.
In the present embodiment, the screw 1 and expansion tube 2 of the fixing device used due to terminal box are insulating materials, because
This, improves the insulation effect of terminal box, safer, prevents electric leakage and the short circuit of wiring board 3, improves the inside of terminal box
The service life of electronic component.
Further, in the present embodiment, the mounting hole 41 coordinated with expansion tube 2, installation are offered on the bottom plate of box 4
The limited block 411 with the circumferential spacing cooperation in the spacing gap of expansion tube 2 24 is provided with the inwall in hole 41.Pass through limited block 411
It is spacing with spacing gap 24, it is therefore prevented that the precession of screw 1 and during screwing out, expansion tube 2 is mounted opposite hole 41 and skidded, and installation is more
It is convenient and firm to add.
In the present embodiment, lid 6 and box 4 are plastic material, further increase the insulating properties of terminal box.Gu
Reservation 5 can use plastic material or metal material.Certainly, the material for changing terminal box according to being actually needed, in the application
Terminal box can extensive use, for example applied to wall, machine casing, casing etc., metal or wood materials etc. can be used.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
- A kind of 1. fixing device, it is characterised in that including：Expansion tube (2), the expansion tube (2) is along the circumferential direction enclosed to put by more valve expanding blocks (23) to be formed, in the expansion tube (2) Portion has the screwed hole (22) that is surrounded by more valve expanding blocks (23), and the aperture of the screwed hole (22) is from precession end to back-out End is gradually reduced, and the precession end of more valve expanding blocks (23) is fixed on annular pipe cap (21)；Screw (1), it is connected with the screwed hole (22), with the precession of the screw (1), the screw (1) is by described in The unscrewing end of expanding block (23) radially struts.
- 2. fixing device according to claim 1, it is characterised in that the unscrewing end of the expansion tube (2) is arc roof construction.
- 3. fixing device according to claim 1, it is characterised in that there is limit between the two neighboring expanding block (23) Interdigit gap (24).
- 4. fixing device according to claim 1, it is characterised in that the expansion tube (2) is plastic insulating tube.
- 5. according to the fixing device described in claim any one of 1-4, it is characterised in that the screw (1) is insulating screw.
- 6. fixing device according to claim 5, it is characterised in that the insulating screw is nylon screw.
- 7. a kind of terminal box, including lid (6), box (4), fixed seat (5) and wiring board (3), the wiring board (3) are located at institute State in box (4), the lid (6) is fastened on the box (4), it is characterised in that the wiring board (3), the box (4) and the fixed seat (5) one-time fixes connection by the fixing device as described in claim any one of 1-6.
- 8. terminal box according to claim 7, it is characterised in that the expansion tube (2) of the fixing device passes through the box The bottom plate and the fixed seat (5) of sub (4), the annular pipe cap (21) of the expansion tube (2) are located at the wiring board (3) and described Between the bottom plate of box (4), the screw (1) is threadedly coupled through the wiring board (3) with the expansion tube (2), described swollen The unscrewing end of tube expansion (2) is radially outward opened, fixed seat described in swelling (5) and the box (4).
- 9. terminal box according to claim 7, it is characterised in that offered on the bottom plate of the box (4) with it is described swollen The mounting hole (41) that tube expansion (2) coordinates, the spacing gap with the expansion tube (2) is provided with the inwall of the mounting hole (41) (24) limited block (411) of circumferential spacing cooperation.
- 10. terminal box according to claim 7, it is characterised in that the lid (6) and the box (4) are plastics Material, the fixed seat (5) are metal material or plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961194.0U CN207033926U (en) | 2017-08-02 | 2017-08-02 | A kind of terminal box and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961194.0U CN207033926U (en) | 2017-08-02 | 2017-08-02 | A kind of terminal box and fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033926U true CN207033926U (en) | 2018-02-23 |
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ID=61474397
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961194.0U Active CN207033926U (en) | 2017-08-02 | 2017-08-02 | A kind of terminal box and fixing device |
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| Country | Link |
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| CN (1) | CN207033926U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290250A (en) * | 2019-08-05 | 2019-09-27 | 江苏天隆富信息技术有限公司 | A kind of cell phone mainboard being easily installed |
| CN110316494A (en) * | 2019-07-31 | 2019-10-11 | 安徽理工大学 | A kind of intelligent classification dustbin |
| CN112086913A (en) * | 2020-09-08 | 2020-12-15 | 余春仙 | Leakage cable fixing device |
| CN113991540A (en) * | 2021-11-25 | 2022-01-28 | 中国南方电网有限责任公司超高压输电公司柳州局 | Strain drainage yoke plate installation device |
-
2017
- 2017-08-02 CN CN201720961194.0U patent/CN207033926U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316494A (en) * | 2019-07-31 | 2019-10-11 | 安徽理工大学 | A kind of intelligent classification dustbin |
| CN110290250A (en) * | 2019-08-05 | 2019-09-27 | 江苏天隆富信息技术有限公司 | A kind of cell phone mainboard being easily installed |
| CN112086913A (en) * | 2020-09-08 | 2020-12-15 | 余春仙 | Leakage cable fixing device |
| CN112086913B (en) * | 2020-09-08 | 2021-10-26 | 国网福建省电力有限公司漳州供电公司 | Leakage cable fixing device |
| CN113991540A (en) * | 2021-11-25 | 2022-01-28 | 中国南方电网有限责任公司超高压输电公司柳州局 | Strain drainage yoke plate installation device |
| CN113991540B (en) * | 2021-11-25 | 2024-05-24 | 中国南方电网有限责任公司超高压输电公司柳州局 | Strain drainage yoke plate installation device |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190814 Address after: 312400 Zhongyuan 22, Shengzhou Economic Development Zone, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Europe and Ni kitchen utensils Co., Ltd. Address before: 101100 No. 1421, 14th floor, No. 2 Building, No. 58 Xinhua West Street, Tongzhou District, Beijing Patentee before: Ounuoni (Beijing) kitchen electrical appliance Co. |