CN204677554U - Fixing device - Google Patents
Fixing device Download PDFInfo
- Publication number
- CN204677554U CN204677554U CN201520201858.4U CN201520201858U CN204677554U CN 204677554 U CN204677554 U CN 204677554U CN 201520201858 U CN201520201858 U CN 201520201858U CN 204677554 U CN204677554 U CN 204677554U
- Authority
- CN
- China
- Prior art keywords
- hole
- fixing device
- bolt
- nut
- fixed base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of fixing device, described fixing device includes fixed base, flexible rubber ring and the bolt that can be fixed in advance on one first object, described fixed base inside is provided with step hole, the second through hole that this step hole comprises the first through hole and is communicated with this first through hole, the aperture of described first through hole is less than the aperture of described second through hole, and the external diameter of the nut of described bolt is greater than the internal diameter of described first through hole; Described flexible rubber ring is placed in described second through hole and its internal diameter is less than the external diameter of described screw rod; The screw rod of described bolt runs through the first through hole and second through hole of described step hole successively, described flexible rubber ring be placed on described screw rod with described screw rod interference fit.Quick mounting and the dismounting of product can be realized by fixing device of the present utility model in small space, greatly enhance productivity, and be conducive to the Miniaturization Design of product.
Description
Technical field
The utility model relates to mechanical structure technical field, relates more specifically to a kind of fixing device so that assembly and disassembly between two objects.
Background technique
In the product such as machinery, electronic equipment between each parts/circuit module or parts/connection between circuit module and the casing of equipment and fixing be all by fastening piece usually, such as adopt the mode of bolt attaching nut to realize.In existing Placement, screw bolt and nut is all the link independent of parts/circuit module each in product, and when mounting and dismounting, bolt easily comes off from mounted parts/circuit module and affects the manufacturing efficiency of product.In addition, when adopting above-mentioned conventional fastener to connect, also require that interiors of products reserves abundant space to realize this installation process at corresponding installed position, be unfavorable for the Miniaturization Design of product structure.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of fixing device bolt can being fixed in advance to prevent it from coming off so that assembly and disassembly between two objects.
In order to solve the problems of the technologies described above, the utility model provides a kind of fixing device, described fixing device includes fixed base, flexible rubber ring and the bolt that can be fixed in advance on one first object, described fixed base inside is provided with step hole, the second through hole that this step hole comprises the first through hole and is communicated with this first through hole, the aperture of described first through hole is less than the aperture of described second through hole, and the external diameter of the nut of described bolt is greater than the internal diameter of described first through hole; Described flexible rubber ring is placed in described second through hole and its internal diameter is less than the external diameter of described screw rod; The screw rod of described bolt runs through the first through hole and second through hole of described step hole successively, described flexible rubber ring be placed on described screw rod with described screw rod interference fit.
Its further technological scheme is: described fixing device also comprises the nut with described bolt matching, when described fixing device is for being fixed to described first object on one second object, the screw rod of described bolt is screwed together on described nut after running through the first through hole of described step hole and the second through hole and one second object successively.
Its further technological scheme is: described nut can be fixed on described second object in advance for installing the position of the first object.
Its further technological scheme is: described nut is welded nut or Insert Nut.
Its further technological scheme is: described fixing device also comprises the first packing ring, described step hole also comprises third through-hole, described second through hole is between described first through hole and third through-hole, described first packing ring to be placed on described bolt and to be placed in described third through-hole, and the internal diameter of described first packing ring is less than the aperture of the corresponding mounting hole on described first object and matches with described bolt.
Its further technological scheme is: described fixing device also comprises the second packing ring, and described second packing ring to be placed on described bolt and to be placed between the nut of described fixed base and described bolt.
Its further technological scheme is: described fixed base is fixed on described first object by fastening piece.
Its further technological scheme is: described fixed base is formed with two depressed areas, is provided with a fastening piece in each described depressed area, and described fixed base is fixed on described first object by fastening piece described in two.
Its further technological scheme is: cornerwise two corners on described fixed base are located in described depressed area.
Its further technological scheme is: described first object is IGBT power cell, and described second object is the casing of current transformer.
Compared with prior art, fixing device of the present utility model is provided with fixed base and flexible rubber ring, fixed base can be fixed on the first object in advance, under the effect of flexible rubber ring, bolt is also pre-arranged on the first object can not accidental be out from it, based on this, can by the nut with bolt matching, the first object be fixed on one second object again.Be no matter the installation process between the first object and the second object or unloading process, bolt all can move relative to flexible rubber ring but can not come off from it, can be screwed with nut easily or be separated.Therefore, in small space, the installation and removal of product can be realized by fixing device of the present utility model fast, greatly enhance productivity, and be conducive to the Miniaturization Design of product.
By following description also by reference to the accompanying drawings, the utility model will become more clear, and these accompanying drawings are for explaining embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the utility model fixing device one embodiment;
Fig. 2 is that fixing device shown in Fig. 1 is for three-dimensional exploded view during current transformer;
Fig. 3 and Fig. 4 illustrates the different using states of the utility model fixing device.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in embodiment, reference numerals similar in accompanying drawing represents similar assembly.Obviously, be only the utility model part embodiment below by the embodiment of description, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Bolt can be fixed on an object by fixing device of the present utility model in advance, this object can be fixed on another object by the nut cooperatively interacted with bolt by this structure again, such as, be fixed on the second object by the first object.Be described for current transformer below, wherein the first object is the IGBT power cell of current transformer, and the second object is the casing of current transformer, utilizes this fixing device can facilitate and be fixed on the casing of current transformer by IGBT power cell rapidly.
Referring to figs. 1 through Fig. 4, in the present embodiment, described fixing device 20 includes fixed base 21, flexible rubber ring 22 and bolt 23, wherein fixed base 21 is fixed on described IGBT power cell 11 in advance, preferably, described fixed base 21 is fixed on the heat spreader module of described IGBT power cell 11 in advance.Particularly, the inside of described fixed base 21 is provided with a step hole 25, the second through hole 252 that this step hole 25 comprises the first through hole 251 and is communicated with this first through hole 251, wherein the aperture of the second through hole 252 is greater than the aperture of the first through hole 251, the external diameter of the nut 232 of described bolt 23 is greater than the internal diameter of described first through hole 251, and described flexible rubber ring 22 is placed in described second through hole 252 and the internal diameter of described flexible rubber ring 22 is slightly less than the external diameter of described screw rod 231.The screw rod 231 of described bolt 23 runs through the first through hole 251 and the second through hole 252 of described step hole 25 successively, described flexible rubber ring 22 is placed on described screw rod 231 and comes off from described fixed base 21 to prevent described bolt 23 with described screw rod 231 interference fit, thus bolt 23 is pre-arranged on described IGBT power cell 11 and can not comes off.
In order to be fixed on converter box 30 by described IGBT power cell 11, described fixing device 20 also includes the nut 24 supporting with bolt 23.During installation, promote the bolt 23 be fixed in advance on IGBT power cell 11 and make it run through converter box 30 and screw togather with described nut 24.
In some embodiment, such as, in the present embodiment, on described fixed base 21, cornerwise two corners are formed with depressed area 211a and 211b respectively, arrange fastening piece 212a (212b) such as a bolt or screw accordingly in each described depressed area 211a (211b).Described fixed base 21 is fixed on described IGBT power cell 11 by two fastening piece 212a (212b).In other embodiment of the present utility model, described fixed base 21 is also fixed on described IGBT power cell 11 in advance by modes such as splicing, welding or riveted joints.
In some embodiment, such as, in the present embodiment, described fixing device 20 also comprises the first packing ring 26, described step hole 25 also comprises third through-hole 253, described second through hole 252 is between described first through hole 251 and third through-hole 253, and described first packing ring 26 to be placed on described bolt 23 and to be placed in described third through-hole 253.The internal diameter of described first packing ring 26 is less than the aperture of the mounting hole corresponding with bolt 23 on IGBT power cell 11 and matches with described bolt 23, the external diameter of the first packing ring 26 is greater than the aperture of described corresponding mounting hole on IGBT power cell 11, the benefit done like this is exactly can avoid causing flexible rubber ring 22 to snap in this hole because of the excesssive gap of mounting hole on bolt 23 and power cell 11 even from then on to come off in hole, thus causes failure mechanisms.
In some embodiment; such as, in the present embodiment; described fixing device 20 also comprises the second packing ring 27 and the 3rd packing ring 28; described second packing ring 27 to be placed on described bolt 23 and to be placed in protect the surface of fixed base 21 not frayed between described fixed base 21 and the nut 232 of described bolt 23, and described 3rd packing ring 28 to be placed on described bolt 23 and to be placed between described casing 30 and nut 24 to protect the surface of converter box 30 not frayed.
One as the present embodiment is out of shape, and described nut 24 can be fixed on described casing 30 in advance for installing the position of IGBT power cell 11.Such as, described 3rd packing ring 28 can be simplified to a welded nut or Insert Nut with nut 24, it is directly fixed on the casing 30 of current transformer by welding or rivet, and is difficult to be particularly useful when implementing installation or removal to this nut 24 because of spatial constraints at the casing 30 of current transformer.
Based on said structure design, IGBT power cell 11 makes bolt 23 be pre-arranged on described IGBT power cell 11 by fixed base 21 is fixed in advance and can not comes off.The embodiment of casing 30 is fixed in advance based on nut 24, its concrete attaching/detaching mode is as follows: when needing the IGBT power cell 11 that fixed base 21 and bolt 23 are housed in advance to be installed in the casing 30 of current transformer, making it pass casing 30 and be screwed into the nut 24 on converter box 30 by rotating bolt 23; And when IGBT power cell 11 disassembles from casing 30 by needs, rotating backward bolt 23 makes it deviate from from nut 24, now flexible rubber ring 22 is because elastic reaction banding is on bolt 23, and flexible rubber ring 22 itself is stuck in the second through hole 252, bolt 23 can move relative to flexible rubber ring 22 but can not unexpectedly come off from fixed base 21 under the effect of external force.And be not fixed on the embodiment of casing 30 in advance based on nut 24, its concrete attaching/detaching mode is as follows: when needing the IGBT power cell 11 that fixed base 21 and bolt 23 are housed in advance to be installed in the casing 30 of current transformer, directly can promote bolt 23 makes it pass casing 30, is then tightened on bolt 23 by nut 24 again; And when IGBT power cell 11 disassembles from casing 30 by needs, rotating backward nut 24 makes it deviate from from bolt 23, now flexible rubber ring 22 is because elastic reaction banding is on bolt 23, and flexible rubber ring 22 itself is stuck in the second through hole 252, bolt 23 can move relative to flexible rubber ring 22 but can not unexpectedly come off from fixed base 21 under the effect of external force.Visible, no matter be which kind of embodiment above-mentioned, quick mounting and the dismounting of IGBT power cell 11 all can be realized by fixing device 20, greatly enhance productivity, and due to the installation without the need to carrying out bolt 23 in the casing 30 of current transformer, this fixing device 20 is especially applicable to two parts be used for fixing in small space, is conducive to the Miniaturization Design realizing product.
As mentioned above, fixing device of the present utility model is provided with fixed base and flexible rubber ring, fixed base can be fixed on the first object in advance, under the effect of flexible rubber ring, bolt is also pre-arranged on the first object can not accidental be out from it, based on this, can by the nut with bolt matching, the first object be fixed on one second object again.Be no matter the installation process between the first object and the second object or unloading process, bolt all can move relative to flexible rubber ring but can not come off from it, can be screwed with nut easily or be separated.Therefore, in small space, the installation and removal of product can be realized by fixing device of the present utility model fast, greatly enhance productivity, and be conducive to the Miniaturization Design of product.
More than in conjunction with preferred embodiment, the utility model is described, but the utility model is not limited to the embodiment of above announcement, and the various amendment carried out according to essence of the present utility model should be contained.
Claims (10)
1. a fixing device, it is characterized in that: described fixing device includes fixed base, flexible rubber ring and the bolt that can be fixed in advance on one first object, described fixed base inside is provided with step hole, the second through hole that this step hole comprises the first through hole and is communicated with this first through hole, the aperture of described first through hole is less than the aperture of described second through hole, and the external diameter of the nut of described bolt is greater than the internal diameter of described first through hole; Described flexible rubber ring is placed in described second through hole and its internal diameter is less than the external diameter of the screw rod of described bolt; The screw rod of described bolt runs through the first through hole and second through hole of described step hole successively, described flexible rubber ring be placed on described screw rod with described screw rod interference fit.
2. fixing device according to claim 1, it is characterized in that: described fixing device also comprises the nut with described bolt matching, described fixing device for described first object is fixed on one second object time, the screw rod of described bolt is screwed together on described nut after running through the first through hole of described step hole and the second through hole and one second object successively.
3. fixing device according to claim 2, is characterized in that: described nut can be fixed on described second object in advance for installing the position of the first object.
4. fixing device according to claim 3, is characterized in that: described nut is welded nut or Insert Nut.
5. fixing device according to claim 1, it is characterized in that: described fixing device also comprises the first packing ring, described step hole also comprises third through-hole, described second through hole is between described first through hole and third through-hole, described first packing ring to be placed on described bolt and to be placed in described third through-hole, and the internal diameter of described first packing ring is less than the aperture of the corresponding mounting hole on described first object and matches with described bolt.
6. fixing device according to claim 1, is characterized in that: described fixing device also comprises the second packing ring, and described second packing ring to be placed on described bolt and to be placed between the nut of described fixed base and described bolt.
7. fixing device according to claim 1, is characterized in that: described fixed base is fixed on described first object by fastening piece.
8. fixing device according to claim 1, is characterized in that: described fixed base is formed with two depressed areas, is provided with a fastening piece in each described depressed area, and described fixed base is fixed on described first object by fastening piece described in two.
9. fixing device according to claim 8, is characterized in that: cornerwise two corners on described fixed base are located in described depressed area.
10. the fixing device according to any one of claim 2-4, is characterized in that: described first object is IGBT power cell, and described second object is the casing of current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201858.4U CN204677554U (en) | 2015-04-03 | 2015-04-03 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201858.4U CN204677554U (en) | 2015-04-03 | 2015-04-03 | Fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677554U true CN204677554U (en) | 2015-09-30 |
Family
ID=54177250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520201858.4U Active CN204677554U (en) | 2015-04-03 | 2015-04-03 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677554U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216076A (en) * | 2016-08-27 | 2016-12-14 | 广东绿黄金节能环保技术有限公司 | A kind of fixed mechanism of disintegrator sieving net straight flange |
| CN110067460A (en) * | 2019-03-15 | 2019-07-30 | 北京长城华冠汽车科技股份有限公司 | Hinge of Trunk Lid and vehicle |
| WO2020143276A1 (en) * | 2019-01-11 | 2020-07-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Loose-proof screw assembly and fastened structure comprising the same |
-
2015
- 2015-04-03 CN CN201520201858.4U patent/CN204677554U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216076A (en) * | 2016-08-27 | 2016-12-14 | 广东绿黄金节能环保技术有限公司 | A kind of fixed mechanism of disintegrator sieving net straight flange |
| WO2020143276A1 (en) * | 2019-01-11 | 2020-07-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Loose-proof screw assembly and fastened structure comprising the same |
| CN110067460A (en) * | 2019-03-15 | 2019-07-30 | 北京长城华冠汽车科技股份有限公司 | Hinge of Trunk Lid and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2473017B1 (en) | Mounting component and assembly of mounting component | |
| CN204677554U (en) | Fixing device | |
| CN102480185B (en) | Motor mounting support | |
| CN212544220U (en) | Electronic box and cable switching assembly thereof | |
| US20130170895A1 (en) | Floating fastener with expanded application flexibility | |
| CN104162880A (en) | Hand tool head assembly and housing apparatus | |
| CN203942236U (en) | Electric circuit connection container | |
| KR200483105Y1 (en) | Coupling Device For Joint Connector And Earth Terminal | |
| KR20170002134U (en) | Earthing lug structure for earthing bolt and ship having the same | |
| KR101539014B1 (en) | Signal tower lamp supporter | |
| KR200451959Y1 (en) | Assembling Structure of Junction Box | |
| CN205062169U (en) | Panel installation tool | |
| CN219181905U (en) | Circuit board box and integrated kitchen | |
| US20130128444A1 (en) | Backplane, Backlight Module and LCD Device | |
| CN212407240U (en) | Battery module fixing mechanism of energy storage system | |
| CN219833989U (en) | Photovoltaic inverter structure suitable for frame installation | |
| CN207890404U (en) | A kind of container and its mounting assembly | |
| CN205454259U (en) | Product shell and electronic product | |
| CN203455379U (en) | Ammeter disk cabinet installation adapter | |
| CN210004325U (en) | kinds of mounting structure | |
| JP5709823B2 (en) | Mounting bracket | |
| CN203499403U (en) | Stamping hinge and automobile | |
| CN103286191B (en) | Rapid adjusting structure of male die coping cutting edge fixing press blocks | |
| CN210668806U (en) | Disjunctor frame for switch | |
| KR101203957B1 (en) | Antenna holder for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |