CN202945898U - Self-locking door and operation machine comprising same - Google Patents
Self-locking door and operation machine comprising same Download PDFInfo
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- CN202945898U CN202945898U CN 201220627756 CN201220627756U CN202945898U CN 202945898 U CN202945898 U CN 202945898U CN 201220627756 CN201220627756 CN 201220627756 CN 201220627756 U CN201220627756 U CN 201220627756U CN 202945898 U CN202945898 U CN 202945898U
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- self
- door
- groove
- locking door
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Abstract
The utility model relates to a self-locking door. The self-locking door comprises a doorframe, a door panel, a hinge, a rod, a groove and a limiting hole, wherein the first end of the rod is bent and is connected into a pivoting hole of the doorframe in a pivoting manner; the groove is formed in the inner side of the door panel, and the second end of the rod is matched in the groove in a sliding manner; the limiting hole is formed in a preset position at the bottom of the groove; and when the door panel rotates to an open position, the second end of the rod slides to the position above the limiting hole in the groove and falls into the limiting hole, so that the door panel is locked at the open position. When the self-locking door is opened, the door can be automatically locked at the open position to facilitate maintenance operation by operators. The utility model also relates to an operation machine comprising the self-locking door.
Description
Technical field
The utility model relates to mechanical field, relates in particular to a kind of self-locking door and the work machine that comprises this self-locking door.
Background technology
In prior art, in the work machine as wheel loader, hood generally includes at least one maintenance door in order to carry out necessary maintenance.Maintenance door of the prior art can't be automatically locked at open position after being opened, operating personnel need to remain on open position with maintenance door with hand or other instrument, and this has caused inconvenience to maintenance work.
The utility model content
In order to overcome the above problems, the utility model provides a kind of self-locking door and has comprised the work machine of this self-locking door.Self-locking door of the present utility model can be automatically locked at open position when being opened, thereby has facilitated operating personnel's attended operation.
In one embodiment, the utility model provides a kind of self-locking door, and described self-locking door comprises doorframe, door-plate and the hinge that is connected with described door-plate with described doorframe, and described self-locking door also comprises:
Bar, described bar has first end and the second end, and the first end bending of described bar also pivotally is connected to the pivoting hole on described doorframe;
Groove, described groove is arranged on the inboard of described door-plate, and the second end of described bar is engaged in described groove slidably;
Spacing hole, described spacing hole is arranged on the pre-position of the bottom of described groove;
When described door-plate rotates to open position, the second end of described bar slide in described groove described spacing hole above and drop in described spacing hole, thereby make described locking door at described open position.
In another embodiment, the utility model provides a kind of work machine, and this work machine has hood, and the self-locking door that provides in the above-described embodiments is provided this hood.
Description of drawings
Fig. 1 is the stereogram of self-locking door of the present utility model;
Fig. 2 is the local enlarged diagram of self-locking door of the present utility model;
Fig. 3 is the local enlarged diagram at the pivoting hole place of self-locking door of the present utility model.
The specific embodiment
Fig. 1-3 show the preferred embodiment of self-locking door of the present utility model.
According to the utility model, provide a kind of low cost and reliable mechanism that door-plate 20 is automatically locked at open position, this open position refers to that preferably door-plate 20 is opened to the positions apart from about 85 degree of fastening position to 90 degree.
As Figure 1-3, self-locking door of the present utility model comprises doorframe 10, door-plate 20 and the hinge 21 that is connected with door-plate 20 with doorframe 10.
This self-locking door also comprises bar 22, bar 22 has first end 28 and the second end 26, the first end 28 of bar 22 bends in the pivoting hole 25 that also pivotally is connected on doorframe 10, thereby the first end 28 that makes bar 22 can pass pivoting hole and move up and down, and the first end 28 of bar 22 can be in pivoting hole 25 pivotable.
Preferably, as shown in Figure 3, the first end 28 of bar 22 is engaged in pivoting hole 25 by means of spacer pin, thereby makes bar 22 in the vertical directions that certain freedom of motion be arranged.In one embodiment, be provided with elastic washer 27 between spacer pin and pivoting hole 25.The quantity of spacer pin is preferably two, lays respectively at the both sides up and down of pivoting hole 25.Correspondingly, the quantity of elastic washer 27 is preferably also two.In a further embodiment, also can not establish elastic washer.
Be provided with groove 23 in the inboard of door-plate 20, the second end 26 of bar 22 is engaged in groove 23 slidably.The pre-position of the bottom of this groove 23 is provided with spacing hole 24.Groove 23 can be arranged on the door-plate inboard by any known mode, includes but not limited to welding, riveted joint, bonding etc.The position of spacing hole 24 is arranged so that when door-plate 20 rotated to open position, the second end 26 of bar 22 just slided into the top of spacing hole 24.But the diameter dimension of spacing hole 24 is less than the width of groove 23 greater than the diameter dimension of the second end 26 of bar 22, thereby makes the second end 26 of bar 22 to drop in spacing hole 24 under action of gravitation.
In one embodiment, pivoting hole 25 is positioned at the hypomere of doorframe 10 near the position of hinge 21, and groove 23 is arranged on the lower edge of the inboard of described door-plate 20.In another embodiment, pivoting hole 25 is positioned at the epimere of doorframe 10 near the position of hinge 21, and groove 23 is arranged on the upper edge of the inboard of door-plate 20.It will be understood by those of skill in the art that pivoting hole 25 also can be positioned at the suitable positions such as stage casing of doorframe 10, correspondingly, groove 23 also can be arranged on the correct positions such as middle part of door-plate 20.
The utility model also provides a kind of work machine, and this work machine has hood, and this hood comprises self-locking door of the present utility model.It is pointed out that self-locking door of the present utility model is applicable to any work machine with maintenance door.
Industrial applicibility
In the time need to safeguarding the work machine that comprises self-locking door of the present utility model.When opening the self-locking door, door-plate 20 beginning pivotables, the second end 26 of bar 22 can be in the interior slip of groove 23.Towards the open position pivotable, the second end 26 of bar 22 slides and near spacing hole 24, makes door-plate 20 stop in spacing hole 24 until the second end 26 of bar 22 drops under action of gravitation, thereby make door-plate 20 be locked in open position along with door-plate 20.
Self-locking door of the present utility model can be automatically locked at open position when being opened, thereby has facilitated operating personnel's attended operation, has improved operating efficiency.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal within replacement, improvement etc. all should be included in protection domain of the present utility model.
Reference numeral
10 doorframes
20 door-plates
21 hinges
22 bars
23 grooves
24 spacing holes
25 pivoting holes
26 the second ends
27 elastic washers
28 first ends
Claims (9)
1. self-locking door, described self-locking door comprises doorframe (10), door-plate (20) and the hinge (21) that is connected with described door-plate (20) with described doorframe (10), it is characterized in that, described self-locking door also comprises:
Bar (22), described bar (22) have first end (28) and the second end (26), and first end (28) bending of described bar (22) also pivotally is connected to the pivoting hole (25) on described doorframe (10);
Groove (23), described groove (23) is arranged on the inboard of described door-plate (20), and the second end (26) of described bar (22) is engaged in described groove (23) slidably;
Spacing hole (24), described spacing hole (24) is arranged on the pre-position of the bottom of described groove (23);
When described door-plate (20) when rotating to open position, the second end (26) of described bar (22) slides into the top of described spacing hole (24) and drops in described spacing hole (24) in described groove (23), thereby makes described door-plate (20) be locked in described open position.
2. self-locking door according to claim 1, is characterized in that, described open position is that described door-plate (20) is opened to the position apart from fastening position 85 degree to 90 degree.
3. self-locking door according to claim 1, is characterized in that, the first end (28) of described bar (22) is engaged in described pivoting hole (25) by means of spacer pin.
4. self-locking door according to claim 3, is characterized in that, the quantity of described spacer pin is two, and these two spacer pins lay respectively at the both sides up and down of described pivoting hole (25).
5. self-locking door according to claim 3, is characterized in that, is provided with elastic washer (27) between described spacer pin and described pivoting hole (25).
6. self-locking door according to claim 1, is characterized in that, described pivoting hole (25) is positioned at the hypomere of described doorframe (10) near the position of described hinge (21), and described groove (23) is arranged on the lower edge of the inboard of described door-plate (20).
7. self-locking door according to claim 1, is characterized in that, described pivoting hole (25) is positioned at the epimere of described doorframe (10) near the position of described hinge (21), and described groove (23) is arranged on the upper edge of the inboard of described door-plate (20).
8. self-locking door according to claim 1, is characterized in that, the diameter dimension of described spacing hole (24) is less than the width of described groove (23) but greater than the diameter dimension of the second end (26) of described bar (22).
9. a work machine, is characterized in that, this work machine has hood, and described hood comprises the described self-locking door of any one according to claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627756 CN202945898U (en) | 2012-11-23 | 2012-11-23 | Self-locking door and operation machine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627756 CN202945898U (en) | 2012-11-23 | 2012-11-23 | Self-locking door and operation machine comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945898U true CN202945898U (en) | 2013-05-22 |
Family
ID=48421605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220627756 Expired - Lifetime CN202945898U (en) | 2012-11-23 | 2012-11-23 | Self-locking door and operation machine comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202945898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080795A (en) * | 2016-07-15 | 2016-11-09 | 青岛雷沃挖掘机有限公司 | A kind of excavator enging cabin and lateral open-close type front cover thereof |
| CN111425242A (en) * | 2020-05-19 | 2020-07-17 | 杜军亭 | Prevent abrupt reverse air door pnematic interlocking closing device |
-
2012
- 2012-11-23 CN CN 201220627756 patent/CN202945898U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080795A (en) * | 2016-07-15 | 2016-11-09 | 青岛雷沃挖掘机有限公司 | A kind of excavator enging cabin and lateral open-close type front cover thereof |
| CN111425242A (en) * | 2020-05-19 | 2020-07-17 | 杜军亭 | Prevent abrupt reverse air door pnematic interlocking closing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |