CN103643845B - Engine shroud door opens position-limit mechanism - Google Patents
Engine shroud door opens position-limit mechanism Download PDFInfo
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- CN103643845B CN103643845B CN201310579988.7A CN201310579988A CN103643845B CN 103643845 B CN103643845 B CN 103643845B CN 201310579988 A CN201310579988 A CN 201310579988A CN 103643845 B CN103643845 B CN 103643845B
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- lock body
- fairlead
- spring
- protecting hood
- door
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Abstract
The present invention discloses a kind of engine shroud door and opens position-limit mechanism, relates to technical field of engineering machinery.It comprises lock body, lock body fixed head and with lock body with the use of the hood door being provided with lockhole; Lock body comprises handle, fairlead, spring, plain cushion, bullet pad and hold-down nut; Fairlead is fixed on lock body fixed head; Fairlead is inserted from the little internal diameter one end of fairlead in the threaded one end of handle; Spring housing is on guide rod and be positioned at the large diameter of fairlead; Hold-down nut is arranged on the guide rod end of thread; Plain cushion and bullet pad are contained between spring and hold-down nut; In a free state, spring is subject to a little pressure, and spring one end props up the little internal diameter of fairlead, the other end props up plain cushion.The safety of this locking position-limit mechanism is high, reliably spacing; Easy for installation, only need fairlead be welded on fixed head; Easy and simple to handle, limiting locking operation can be carried out easily; Structure is simple, and manufacturing process is easy, and cost is low, has very large promotional value.
Description
Technical field
The present invention relates to technical field of engineering machinery, refer in particular to a kind of engine shroud door and open position-limit mechanism.
Background technology
At present in engineering machinery field, upwards or the engine shroud door opened of front and back often to adopt traditional pull bar to fix spacing, its poor reliability, door opening angle is little, at closing time easily maloperation, damage pull bar or protecting hood door by pressure, spacing not firm, potential safety hazard is large, when door is in closed condition, pull bar is in free state, and vibration is large.
Summary of the invention
For solving the problem, the invention provides a kind of manufacturing process easy, cost is low, and easy-operating engine shroud door opens position-limit mechanism.
The technical solution used in the present invention is: a kind of engine shroud door opens position-limit mechanism, it comprise lock body, lock body fixed head and with lock body with the use of the protecting hood door being provided with lockhole; It is characterized in that: described lock body comprises handle, fairlead, spring, plain cushion, bullet pad and hold-down nut; Described fairlead is the little hollow circular cylinder in large one end, internal diameter one end and is fixed on lock body fixed head; Described handle comprises bar-shaped guide rod and a baffle plate; Described guide rod fixed dam, the guide rod other end are provided with screw thread, and fairlead is inserted from the little internal diameter one end of fairlead in the threaded one end of guide rod; Described spring housing is on guide rod and be positioned at the large diameter of fairlead; Hold-down nut is arranged on the guide rod end of thread; Described plain cushion and bullet pad are contained between spring and hold-down nut; In a free state, described spring is subject to a little pressure, and spring one end props up the little internal diameter of fairlead, the other end props up plain cushion.
It is further: described handle one end is fixed with strip limiting plate; Described limiting plate is fixed with draw ring.
Described lock body and lock body fixed head are arranged on one end of protecting hood door hinge; Described lockhole is arranged on protecting hood door, and when protecting hood door is opened, limiting plate is through lockhole.
Described lock body fixed head is fixed on inside protecting hood door rotating shaft, lock body and protecting hood door shaft parallel; Be fixed with the portable plate coordinated with lock body inside described protecting hood door, portable plate is around protecting hood door axis of rotation; Described lockhole is arranged on portable plate; Hold-down nut one end of described lock body props up portable plate, and when portable plate is opened with protecting hood door, hold-down nut end embeds lockhole under the pressure of the spring.
Beneficial effect of the present invention is:
1, the safety of this locking position-limit mechanism is high, reliably spacing;
2, this locking position-limit mechanism is easy for installation, only need be welded on fixed head by fairlead;
3, this locking position-limit mechanism is easy and simple to handle, can carry out limiting locking operation easily;
4, this locking position-limit mechanism structure is simple, and manufacturing process is easy, and cost is low, easy to operate, has very large promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is arranged on outside engine shroud;
Fig. 2 is the structural representation of the present invention under the outer using state of engine shroud;
Fig. 3 is lock body structure schematic diagram of the present invention;
Fig. 4 is handle arrangement schematic diagram of the present invention;
Fig. 5 is the structural representation that the present invention is arranged in engine shroud;
Fig. 6 is the enlarged drawing at A place in Fig. 5;
Fig. 7 is the structural representation in engine shroud of the present invention under using state.
In figure: 1, protecting hood door; 2, lock body; 21, handle; 211, draw ring; 212, limiting plate; 213, baffle plate; 214, guide rod; 22, fairlead; 23, spring; 24, plain cushion; 25, bullet pad; 26, hold-down nut; 3, lock body fixed head.
Detailed description of the invention
Be below specific embodiments of the invention, existing the present invention will be further described by reference to the accompanying drawings.
Embodiment 1
As shown in Figures 1 to 4, a kind of engine shroud door opens position-limit mechanism, it comprise lock body 2, lock body fixed head 3 and with lock with the use of the protecting hood door 1 being provided with lockhole; Wherein lock body 2 and lock body fixed head 3 are arranged on one end of protecting hood door 1 hinge; Protecting hood door 1 is arranged on the other end of hinge; Lock body 2 comprises handle 21, fairlead 22, spring 23, plain cushion 24, bullet pad 25 and hold-down nut 26; Fairlead 22 is the little hollow circular cylinder in large one end, internal diameter one end and is fixed on lock body fixed head 3; Handle 21 comprises bar-shaped guide rod 214 and a baffle plate 213; Guide rod 214 one end fixed dam 213, guide rod 214 other end are provided with screw thread, and fairlead 22 is inserted from the little internal diameter one end of fairlead 22 in the threaded one end of guide rod 214; Spring 23 to be enclosed within guide rod 214 and to be positioned at the large diameter of fairlead 22; Hold-down nut 26 is arranged on guide rod 214 end of thread; Plain cushion 24 and bullet pad 25 are contained between spring 23 and hold-down nut 26; In a free state, described spring 23 is subject to a little pressure, and spring 23 one end props up the little internal diameter of fairlead 22, the other end props up plain cushion 24.
Handle 21 one end welding strip limiting plate 212; Limiting plate 212 welds draw ring 211.
When protecting hood door 1 is in closed condition, the spring 23 in lock body 2 is in half compressive state under the effect of plain cushion 24, bullet pad 25 and hold-down nut 26, ensures that whole each element of lock body 2 is in Pre strained state, prevents vibration; When opening protecting hood door 1, protecting hood door 1 is after upset 180 °, the draw ring 211 of lock body 2 passes completely through the lockhole of protecting hood door 1, and now limiting plate 212 is also in lockhole, pulls handle 21 vertically upward until limiting plate 212 exposes lockhole completely with finger through draw ring 211, in this process, spring 23 compresses further, produces elastic force, then by handle 21 half-twist, now limiting plate 212 is perpendicular to lockhole, and such protecting hood door 1 is limited plate 212 limiting locking under the active force of spring 23.
Embodiment 2
As shown in Fig. 3 to Fig. 7, a kind of engine shroud door opens position-limit mechanism, it comprise lock body 2, lock body fixed head 3 and with lock with the use of the portable plate 11 being provided with lockhole; Wherein the structure of lock body 2 is the same with the lock body in embodiment 1; Lock body fixed head 3 is fixed on inside protecting hood door 1 rotating shaft, lock body 2 and protecting hood door 1 shaft parallel; Be fixed with the portable plate 11 coordinated with lock body 2 inside protecting hood door 1, portable plate 11 is around protecting hood door 1 axis of rotation; Hold-down nut 26 one end of lock body 2 props up portable plate 11, and when portable plate 11 is opened with protecting hood door 1, hold-down nut 26 end embeds lockhole 4 under the pressure of spring 23.
When protecting hood door 1 is in closed condition, on protecting hood door 1 welding the portable plate 11 of band lockhole make spring 23 be in compressive state, now the threaded one end of guide peg 214 returns in fairlead 22 completely.Open in protecting hood door 1 process, once the lockhole of portable plate 11 is slipped in guide peg 214 termination, the oppressive force of its end disappears, and under spring 23 acts on, guide peg 214 stretches out fairlead 22 again, thus reaches the object of limiting locking.When again closing protecting hood door 1, only need pull out handle 21, make the threaded termination of guide peg 214 leave portable plate 11 lockhole completely, protecting hood door 1 is in movable state again, thus reaches object of closing the door.
Claims (4)
1. engine shroud door open a position-limit mechanism, it comprise lock body (2), lock body fixed head (3) and with lock body (2) with the use of the protecting hood door (1) being provided with lockhole (4); It is characterized in that: described lock body (2) comprises handle (21), fairlead (22), spring (23), plain cushion (24), bullet pad (25) and hold-down nut (26); Described fairlead (22) is for the little hollow circular cylinder in large one end, internal diameter one end and be fixed on lock body fixed head (3); Described handle (21) comprises a bar-shaped guide rod (214) and baffle plate (213); Described guide rod (214) one end fixed dam (213), guide rod (214) other end are provided with screw thread, and fairlead (22) is inserted from the little internal diameter one end of fairlead (22) in guide rod (214) threaded one end; Described spring (23) is enclosed within guide rod (214) and goes up and be positioned at the large diameter of fairlead (22); Described hold-down nut (26) is arranged on guide rod (214) end of thread; Described plain cushion (24) and bullet pad (25) are contained between spring (23) and hold-down nut (26); In a free state, described spring (23) is subject to a little pressure, and spring (23) one end props up fairlead (22) little internal diameter, the other end props up plain cushion (24).
2. engine shroud door according to claim 1 opens position-limit mechanism, it is characterized in that: described handle (21) one end is fixed with strip limiting plate (212); Described limiting plate (212) is fixed with draw ring (211).
3. engine shroud door according to claim 1 and 2 opens position-limit mechanism, it is characterized in that: described lock body (2) and lock body fixed head (3) are arranged on one end of protecting hood door (1) hinge; Described lockhole (4) is arranged on protecting hood door (1), and when protecting hood door (1) is opened, limiting plate (212) is through lockhole (4).
4. engine shroud door according to claim 1 opens position-limit mechanism, it is characterized in that: described lock body fixed head (3) is fixed on inside protecting hood door (1) rotating shaft, lock body (2) and protecting hood door (1) shaft parallel; Described protecting hood door (1) inner side is fixed with the portable plate (11) coordinated with lock body (2), and portable plate (11) is around protecting hood door (1) axis of rotation; Described lockhole (4) is arranged on portable plate (11); Hold-down nut (26) one end of described lock body (2) props up portable plate (11), and when portable plate (11) is opened with protecting hood door (1), hold-down nut (26) end embeds lockhole (4) under the pressure of spring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310579988.7A CN103643845B (en) | 2013-11-19 | 2013-11-19 | Engine shroud door opens position-limit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310579988.7A CN103643845B (en) | 2013-11-19 | 2013-11-19 | Engine shroud door opens position-limit mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103643845A CN103643845A (en) | 2014-03-19 |
| CN103643845B true CN103643845B (en) | 2016-03-09 |
Family
ID=50249120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310579988.7A Active CN103643845B (en) | 2013-11-19 | 2013-11-19 | Engine shroud door opens position-limit mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103643845B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858389A (en) * | 2005-05-03 | 2006-11-08 | 沃尔沃建造设备控股（瑞典）有限公司 | Locking and unlocking apparatus of engine hood |
| CN101446094A (en) * | 2007-11-28 | 2009-06-03 | 沃尔沃建造设备控股（瑞典）有限公司 | Hood stay apparatus for engine room in heavy construction equipment |
| CN202213637U (en) * | 2011-08-09 | 2012-05-09 | 柳工常州挖掘机有限公司 | Pressure spring type engine hood lock |
| CN202810402U (en) * | 2012-07-31 | 2013-03-20 | 长城汽车股份有限公司 | Pin type hood lock |
| CN203211395U (en) * | 2013-04-28 | 2013-09-25 | 徐州徐工挖掘机械有限公司 | Excavator engine cover |
| EP2644784A1 (en) * | 2012-03-28 | 2013-10-02 | Hitachi Construction Machinery Co., Ltd. | Construction machine with a rear-view camera |
| CN203613910U (en) * | 2013-11-19 | 2014-05-28 | 徐工集团工程机械股份有限公司科技分公司 | Position limiting mechanism for opening of engine shield door |
-
2013
- 2013-11-19 CN CN201310579988.7A patent/CN103643845B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858389A (en) * | 2005-05-03 | 2006-11-08 | 沃尔沃建造设备控股（瑞典）有限公司 | Locking and unlocking apparatus of engine hood |
| CN101446094A (en) * | 2007-11-28 | 2009-06-03 | 沃尔沃建造设备控股（瑞典）有限公司 | Hood stay apparatus for engine room in heavy construction equipment |
| CN202213637U (en) * | 2011-08-09 | 2012-05-09 | 柳工常州挖掘机有限公司 | Pressure spring type engine hood lock |
| EP2644784A1 (en) * | 2012-03-28 | 2013-10-02 | Hitachi Construction Machinery Co., Ltd. | Construction machine with a rear-view camera |
| CN202810402U (en) * | 2012-07-31 | 2013-03-20 | 长城汽车股份有限公司 | Pin type hood lock |
| CN203211395U (en) * | 2013-04-28 | 2013-09-25 | 徐州徐工挖掘机械有限公司 | Excavator engine cover |
| CN203613910U (en) * | 2013-11-19 | 2014-05-28 | 徐工集团工程机械股份有限公司科技分公司 | Position limiting mechanism for opening of engine shield door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103643845A (en) | 2014-03-19 |
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