CN204778469U - Novel manhole cover davit structure that has safety lock - Google Patents
Novel manhole cover davit structure that has safety lock Download PDFInfo
- Publication number
- CN204778469U CN204778469U CN201520339654.7U CN201520339654U CN204778469U CN 204778469 U CN204778469 U CN 204778469U CN 201520339654 U CN201520339654 U CN 201520339654U CN 204778469 U CN204778469 U CN 204778469U
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- manhole cover
- locking
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Abstract
The utility model relates to a novel manhole cover davit structure that has safety lock, include: be equipped with the manhole the jar body and with manhole complex manhole cover, jar sinistron side rigid coupling has annular locking dish, a plurality of locking hole and the locking dish of arranging on the locking dish hits exactly to join in marriage through the bearing and connects the type of the falling L davit that is used for hanging the manhole cover, davit lower extreme rigid coupling has to be accepted the dish and accepts the hole of accepting that is equipped with on the dish with locking hole one -to -one, cup joint still on the davit that can run through that the locking of accepting hole and locking hole is tied and the locking is tied and can be followed the davit and reciprocate. Consequently the utility model discloses both can realize utilizing the safety lock to prevent that the manhole cover from rocking under the state of opening to it is more stable to make us the handhole door open mode, makes things convenient for the workman to operate, and the workman that just can not damage still can make the manhole cover rotate to more angles, and the suitability is stronger.
Description
Technical field
The utility model belongs to pressure container technical field of auxiliary equipment, particularly relates to a kind of novel manhole cover boom structure with safety lock.
Background technology
Manhole is a kind of often with the duct of lid, people can thus hole turnover row road, boiler, Lower hose, comprise telecommunications in addition, light current well that wire television uses, the inner passage etc. of large bridge maintenance.In prior art, the mounting structure of the port lid of manhole is: be provided with sleeve pipe in the side of manhole, the axis vertical of sleeve pipe is arranged, sleeve pipe is set with L shape arm, L shape arm lifts manhole cover, manhole cover utilizes fastener to be fixed on manhole, and when manhole unloads time, manhole cover is removed by the mode rotated by manually pulling pivoted arm.There is following technical matters in the manhole cover of said structure: state that manhole cover is opened in use, manhole cover is without fixed sturcture, and manhole cover is the accidental movement by external force easily, and the manhole cover of heavier-weight moves can affect workman's work, use inconvenience, also can damage staff.For solving the problems of the technologies described above, patent ZL201420028474.2 discloses a kind of manhole cover boom structure with safety lock, comprise the sleeve pipe of the axis vertical being fixed on manhole side, L shape arm is fitted with in described sleeve pipe, described L shape arm has mounted manhole cover, described sleeve pipe is provided with upper mounting plate and lower installation board, described upper mounting plate and lower installation board are fitted with the latch of axis vertical, described latch is provided with limiting section, described limiting section is located between described upper mounting plate and lower installation board, described latch is set with spring, described spring is located between described limiting section and lower installation board, described L shape arm is provided with jam plate near described sleeve pipe, described jam plate is provided with the lockhole that described latch can be made to insert.Although above technical scheme can prevent manhole cover from rocking in the open state to a certain extent, thus it is more stable to make us port lid open mode, facilitate operative, but, can find in the use procedure of reality, be limited by the problems such as the service life of spring, above-mentioned technical scheme poor effect.
Summary of the invention
The utility model provides one compared to existing technologies for solving in known technology the technical matters that exists, structure is more simple, be more convenient for operating and the stronger novel manhole cover boom structure with safety lock of applicability, the utility model both can realize utilizing safety lock to prevent manhole cover from rocking in the open state, thus it is more stable to make us port lid open mode, facilitates operative, and the workman that can not damage, manhole cover also can be made to rotate to more angle, and applicability is stronger.
The technical scheme that the utility model is taked for the technical matters existed in solution known technology is:
A kind of novel manhole cover boom structure with safety lock, comprise: the tank body being provided with manhole and the manhole cover coordinated with manhole, annular lock plate is connected with on the left of described tank body, described lock plate is placed with several locking holes and lock plate center connects inverted L shape arm for hanging manhole cover by bearing, described arm lower end is connected with tray and tray is provided with and locking hole receiving hole one to one, described arm is also socketed with the locking bolt that can run through receiving hole and locking hole and locking bolt can move up and down along arm.
The advantage that the utility model has and good effect are:
For solving technical matters of the prior art, the utility model spy provide technique scheme.
In technique scheme, the utility model design tank body is connected with annular lock plate, this design is convenient to connect arm in the center of lock plate by bearing, unlike the prior art, the utility model latch design dish is placed with several locking holes, locking hole be used for matching with locking bolt the position limitation of arm lived and in view of locking hole quantity be multiple, therefore operator can rotate and rotates arm to more position, makes the utility model effect in actual job better.The utility model can also adopt following technical measures: described locking hole annular array on lock plate.This design is the arrangement mode of the utility model preferably locking hole, and certainly, the arrangement mode of locking hole can change with the operating habit of oneself by operator completely according to the actual needs accordingly.
In addition, also design described arm lower end in the utility model and be connected with tray and connect dish and be provided with and locking hole receiving hole one to one, tray can strengthen the loading strength of locking bolt, makes longer service life of the present utility model.
Further, the utility model can also adopt following technical measures: described locking bolt is provided with card convex and described arm is also connected with the draw-in groove fastened with card convex.When operator is at swinging boom, this design can prevent locking bolt from can cause obstacle to the rotation of arm.
The utility model can also adopt following technical measures: described arm hangs described manhole cover by screw rod.This is the connecting mode of the utility model preferably arm and manhole cover, simply, facilitates easy to operate.
The utility model can also adopt following technical measures: described arm is provided with stroke groove, and described screw rod runs through described stroke groove and can move along stroke groove.This design makes manhole cover can have displacement to a certain extent along stroke groove, enhances applicability of the present utility model.
In sum, the utility model improves the connection mode of fixing arm, simplifies the operating process of operator, and utilizes rigid element to instead of spring, enhances service life of the present utility model.
Accompanying drawing explanation
Fig. 1 is front view structural representation of the present utility model;
Fig. 2 is the birds-eye view structural representation of tank body in the utility model.
In figure: 1, tank body; 2, manhole cover; 3, lock plate; 4, locking hole; 5, arm; 6, tray; 7, receiving hole; 8, locking bolt; 9, card convex; 10, draw-in groove; 11, screw rod; 12, stroke groove.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, a kind of novel manhole cover boom structure with safety lock, comprise: the tank body 1 being provided with manhole and the manhole cover 2 coordinated with manhole, annular lock plate 3 is connected with on the left of described tank body 1, described lock plate 3 is placed with several locking holes 4 and lock plate 3 hits exactly and connects inverted L shape arm 5 for hanging manhole cover 2 by bearing, described arm 5 lower end is connected with tray 6 and tray 6 is provided with and locking hole 4 receiving hole 7 one to one, described arm 5 is also socketed with the locking bolt 8 that can run through receiving hole 7 and locking hole 4 and locking bolt 8 can move up and down along arm 5.
In technique scheme, the utility model design tank body is connected with annular lock plate, this design is convenient to connect arm in the center of lock plate by bearing, unlike the prior art, the utility model latch design dish is placed with several locking holes, locking hole be used for matching with locking bolt the position limitation of arm lived and in view of locking hole quantity be multiple, therefore operator can rotate and rotates arm to more position, makes the utility model effect in actual job better.The utility model can also be set to further, described locking hole annular array on lock plate.This design is the arrangement mode of the utility model preferably locking hole, and certainly, the arrangement mode of locking hole can change with the operating habit of oneself by operator completely according to the actual needs accordingly.
In addition, also design described arm lower end in the utility model and be connected with tray and connect dish and be provided with and locking hole receiving hole one to one, tray can strengthen the loading strength of locking bolt, makes longer service life of the present utility model.
Further, the utility model can also be set to further, and described locking bolt is provided with card convex and described arm is also connected with the draw-in groove fastened with card convex.When operator is at swinging boom, obstacle can be caused to the rotation of arm to prevent locking bolt, the utility model spy provides above-mentioned design, namely utilizes coordinating of the card convex on locking bolt and draw-in groove on arm the locking bolt not for using state to be moved upward to card convex and draw-in groove fastens to be limited the position of locking bolt.
The utility model can also be set to further, and described arm hangs described manhole cover by screw rod.This is the connecting mode of the utility model preferably arm and manhole cover, simply, facilitates easy to operate.
The utility model can also be set to further, and described arm is provided with stroke groove, and described screw rod runs through described stroke groove and can move along stroke groove.This design makes manhole cover can have displacement to a certain extent along stroke groove, enhances applicability of the present utility model.
Specific implementation process;
In actual use, the arm being hung with manhole cover can rotate to the position facilitating it to operate by operator, then, moves down locking bolt, runs through described receiving hole and locking hole to locking bolt, fixed the position of arm.
When operator needs swinging boom, its position that the pull-up of locking bolt can be fastened to card convex and draw-in groove, fixes the position of locking bolt, with the rotation preventing locking bolt from can affect arm.
In sum, the utility model improves the connection mode of fixing arm, simplifies the operating process of operator, and utilizes rigid element to instead of spring, enhances service life of the present utility model.
These are only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a novel manhole cover boom structure with safety lock, it is characterized in that: comprising: the tank body (1) being provided with manhole and the manhole cover (2) coordinated with manhole, described tank body (1) left side is connected with annular lock plate (3), described lock plate (3) is placed with several locking holes (4) and lock plate (3) center connects inverted L shape arm (5) for hanging manhole cover (2) by bearing, described arm (5) lower end is connected with tray (6) and tray (6) is provided with and locking hole (4) receiving hole (7) one to one, described arm (5) is also socketed with the locking bolt (8) that can run through receiving hole (7) and locking hole (4) and locking bolt (8) can move up and down along arm (5).
2. the novel manhole cover boom structure with safety lock according to claim 1, is characterized in that: described locking hole (4) is at the upper annular array of lock plate (3).
3. the novel manhole cover boom structure with safety lock according to claim 1, is characterized in that: described locking bolt (8) is provided with card convex (9) and described arm (5) is also connected with the draw-in groove (10) fastened with card convex (9).
4. the novel manhole cover boom structure with safety lock according to claim 1 or 3, is characterized in that: described arm (5) hangs described manhole cover (2) by screw rod (11).
5. the novel manhole cover boom structure with safety lock according to claim 4, it is characterized in that: described arm (5) is provided with stroke groove (12), described screw rod (11) runs through described stroke groove (12) and can be mobile along stroke groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339654.7U CN204778469U (en) | 2015-05-25 | 2015-05-25 | Novel manhole cover davit structure that has safety lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339654.7U CN204778469U (en) | 2015-05-25 | 2015-05-25 | Novel manhole cover davit structure that has safety lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778469U true CN204778469U (en) | 2015-11-18 |
Family
ID=54518561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520339654.7U Expired - Fee Related CN204778469U (en) | 2015-05-25 | 2015-05-25 | Novel manhole cover davit structure that has safety lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778469U (en) |
-
2015
- 2015-05-25 CN CN201520339654.7U patent/CN204778469U/en not_active Expired - Fee Related
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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: 20151118 Termination date: 20160525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |