CN203769488U - School bus emergency door and door lock externally-opening protection cover thereof - Google Patents
School bus emergency door and door lock externally-opening protection cover thereof Download PDFInfo
- Publication number
- CN203769488U CN203769488U CN201420080572.0U CN201420080572U CN203769488U CN 203769488 U CN203769488 U CN 203769488U CN 201420080572 U CN201420080572 U CN 201420080572U CN 203769488 U CN203769488 U CN 203769488U
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- school bus
- weakening
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- door
- door lock
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Abstract
The utility model discloses a school bus emergency door and a door lock externally-opening protection cover thereof. The door lock externally-opening protection cover comprises a cover body, wherein annular weakening grooves are formed in end surfaces of the cover body; the cover body part on the outer side of each weakening groove forms an annular fixing part used for being fixedly connected with the body of the school bus, and the cover body part on the inner side of each weakening groove forms a weakening part; the cover body parts between the fixing parts and the weakening parts form annular weakening ribs which enable the weakening parts to be separated from the fixing parts when the weakening parts are stressed. The weakening ribs between the fixing parts and the weakening pars reduce the connecting strength between the fixing parts and the weakening parts, so that on one hand, under the normal condition, breakage cannot occur at the parts between the fixing parts and the weakening parts, and the protection cover has the effects of dust prevention and water proofing; on the other hand, under the condition about positioning of the fixing parts, as small force is applied to the weakening parts, the weakening parts can be separated from the fixing parts easily to enable a door lock on the emergency door to be exposed out, so that the operation is convenient.
Description
Technical field
The utility model relates to a kind of school bus escape door and door lock is opened over cap outward.
Background technology
School bus, as child and the important vehicles of students in middle and primary schools, not only plays the effect of picking student, and it is important to ensure student's personal safety.To the requirement of school bus, the design standard of school bus is also more and more subject to concern and the attention of country, bus industry and social each side, and country not only puts into effect the various policies relevant to school bus again and again, has also formulated multiple strict statutory standards together with industry.
School bus escape door is most important as school bus, the assembly assembly of most critical, when urgent, meet occupant and withdraw the outlet of succouring with car outward, promote the speed of in emergency circumstances escaping, multiple regulations explicitly call for school bus escape door to need can from car, not facilitate unlatching by instrument.The outer unlatching of existing school bus escape door door lock car is all continued to use glass plate before as its over cap; and in fact; the over cap that adopts glass to make; owing to affected by glass material and the restriction of physical dimension causes the outer personnel of car cannot not break glass into pieces by instrument opening escape door; troublesome poeration and wasting time, and the glass fragment of breaking into pieces very easily hurts staff.
Utility model content
The purpose of this utility model is to provide a kind of school bus escape door door lock and opens over cap outward, has the problem wasting time and energy that need cause by TO in order to solve existing over cap; The utility model also provides a kind of escape door that uses this over cap simultaneously.
School bus escape door door lock of the present utility model is opened over cap outward and is adopted following technical scheme: a kind of school bus escape door door lock is opened over cap outward; comprise lid; the end face of described lid is provided with annular and weakens groove; weaken annular fixed part, the inside cover body that the outboard cover body of groove is divided into for being connected with school bus car body and be divided into weakenings, the cap portion between fixed part and weakenings is formed on the annular that weakenings can depart from fixed part when stressed and weakens muscle.
Described reduction groove has two, and two are weakened groove and are arranged at respectively on two end faces of lid and corresponding setting.
Described reduction groove is V-type groove.
The annular black pad pasting that has been sticked on one end face of described fixed part, is sticked on an end face of described weakenings and is useful on the red operation mark of mark door lock opening direction.
Described lid is ellipsoidal structure.
School bus escape door of the present utility model adopts following technical scheme: a kind of school bus escape door; comprise a body; the outer open position of door lock of door body is provided with over cap; the end face of described over cap lid is provided with annular and weakens groove; weaken annular fixed part, the inside cover body that the outboard cover body of groove is divided into for being connected with school bus car body and be divided into weakenings, the cap portion between fixed part and weakenings is formed on the annular that weakenings can depart from fixed part when stressed and weakens muscle.
Described reduction groove has two, and two are weakened groove and are arranged at respectively on two end faces of lid and corresponding setting.
Described reduction groove is V-type groove.
The annular black pad pasting that has been sticked on one end face of described fixed part, is sticked on an end face of described weakenings and is useful on the red operation mark of mark door lock opening direction.
Described lid is ellipsoidal structure.
Adopt the over cap of said structure, because being provided with annular, lid weakens groove, weaken groove lid is divided into the annular fixed part in outside and the weakenings of inner side, and reduction muscle between fixed part and weakenings has reduced the bonding strength between fixed part and weakenings, on the one hand, under normal circumstances, between fixed part and weakenings, there will not be fracture, there is the effect of dustproof and waterproof, on the other hand, in the situation that fixed part is located, weakenings is applied to very little power, can easily weakenings be departed to expose the door lock on escape door from fixed part, easy to operate.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of over cap of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Detailed description of the invention
The utility model school bus escape door door lock is opened the embodiment of over cap outward: as shown in Figure 1 and Figure 2, comprise oval lid 4, lid adopts transparent ABS plastic plate to make, on the upper and lower end face of lid, be respectively equipped with an annular and weaken groove 2, two are weakened groove 2 is V-type groove and upper and lower corresponding setting, weaken so the fractal fixed part 1 that circularizes of outboard cover body of groove 2, and weaken the weakenings 3 of the fractal ovalisation of inside cover body of groove, and cap portion between fixed part 1 and weakenings 3 forms and weakens muscle; Weakening groove 2 adopts punch process mode to form, on the one hand, under normal circumstances, reduction muscle between fixed part 1 and weakenings 3 there will not be fracture, and have the effect of dustproof and waterproof, on the other hand, the bonding strength that weakens muscle is lower, can easily realize weakenings disengaging fixed part, i.e. lid fracture by weakenings 3 being applied to the active force of 10-20KG.
The black pad pasting 5 that has been sticked on the upper surface of fixed part 1, black pad pasting can effectively block the inner side object highlighting because over cap is transparent, has colour-fast, aging-resistant characteristic.The red operation mark that has been sticked on the lower surface of weakenings 3, for mark door lock opening direction.
When above-described embodiment assembles on escape door; lid lower surface is towards escape door; on the lower surface of fixed part, beat glass cement and be bonded in open position outside the door lock in school bus escape door outside; what effectively protection school bus escape door door lock can be inartificial when normal condition like this opens from car; in the time of emergency; weakenings in the middle of knocking open with hand or fist, operation door lock is opened escape door, improves escape speed and increases safe probability.
In other embodiments, weaken groove and also can be one, be arranged on wherein any one end face of lid, certainly weakening groove can be also U-shaped groove or other structures.
In other embodiments, red operation mark also can be sticked on the upper surface of weakenings.
The embodiment of school bus escape door of the present utility model: comprise a body, the outer open position of door lock of door body is provided with over cap, as shown in Figure 1 and Figure 2, consistent with the structure of the over cap of above-described embodiment, its content does not repeat them here the structure of over cap.
Claims (10)
1. a school bus escape door door lock is opened over cap outward; comprise lid; it is characterized in that: the end face of described lid is provided with annular and weakens groove; weaken annular fixed part, the inside cover body that the outboard cover body of groove is divided into for being connected with school bus car body and be divided into weakenings, the cap portion between fixed part and weakenings is formed on the annular that weakenings can depart from fixed part when stressed and weakens muscle.
2. school bus escape door door lock according to claim 1 is opened over cap outward, it is characterized in that: described reduction groove has two, and two are weakened groove and are arranged at respectively on two end faces of lid and corresponding setting.
3. school bus escape door door lock according to claim 1 and 2 is opened over cap outward, it is characterized in that: described reduction groove is V-type groove.
4. school bus escape door door lock according to claim 1 is opened over cap outward; it is characterized in that: the annular black pad pasting that has been sticked on an end face of described fixed part, is sticked on an end face of described weakenings and is useful on the red operation mark of mark door lock opening direction.
5. school bus escape door door lock according to claim 1 is opened over cap outward, it is characterized in that: described lid is ellipsoidal structure.
6. a school bus escape door; comprise a body; the outer open position of door lock of door body is provided with over cap; it is characterized in that: the end face of described over cap lid is provided with annular and weakens groove; weaken annular fixed part, the inside cover body that the outboard cover body of groove is divided into for being connected with school bus car body and be divided into weakenings, the cap portion between fixed part and weakenings is formed on the annular that weakenings can depart from fixed part when stressed and weakens muscle.
7. school bus escape door according to claim 6, is characterized in that: described reduction groove has two, and two are weakened groove and are arranged at respectively on two end faces of lid and corresponding setting.
8. according to the school bus escape door described in claim 6 or 7, it is characterized in that: described reduction groove is V-type groove.
9. school bus escape door according to claim 6, is characterized in that: the annular black pad pasting that has been sticked on an end face of described fixed part, is sticked on an end face of described weakenings and is useful on the red operation mark of mark door lock opening direction.
10. school bus escape door according to claim 6, is characterized in that: described lid is ellipsoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080572.0U CN203769488U (en) | 2014-02-25 | 2014-02-25 | School bus emergency door and door lock externally-opening protection cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080572.0U CN203769488U (en) | 2014-02-25 | 2014-02-25 | School bus emergency door and door lock externally-opening protection cover thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769488U true CN203769488U (en) | 2014-08-13 |
Family
ID=51286690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420080572.0U Expired - Fee Related CN203769488U (en) | 2014-02-25 | 2014-02-25 | School bus emergency door and door lock externally-opening protection cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952890A (en) * | 2016-06-29 | 2016-09-21 | 贵州航天天马机电科技有限公司 | Box-type fragile protective cover structure with large positive-negative pressure difference |
-
2014
- 2014-02-25 CN CN201420080572.0U patent/CN203769488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952890A (en) * | 2016-06-29 | 2016-09-21 | 贵州航天天马机电科技有限公司 | Box-type fragile protective cover structure with large positive-negative pressure difference |
| CN105952890B (en) * | 2016-06-29 | 2018-01-30 | 贵州航天天马机电科技有限公司 | A kind of frangible protection cap structure of the big positive and negative pressure of frame type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |