CN211573019U - Anti-drop one-way self-locking power supply door lock - Google Patents
Anti-drop one-way self-locking power supply door lock Download PDFInfo
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- CN211573019U CN211573019U CN201922224278.8U CN201922224278U CN211573019U CN 211573019 U CN211573019 U CN 211573019U CN 201922224278 U CN201922224278 U CN 201922224278U CN 211573019 U CN211573019 U CN 211573019U
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Abstract
The utility model discloses an anti-drop one-way self-locking power supply door lock, be equipped with the dead lever on power supply unit's lateral wall, be equipped with the separation blade perpendicular to the dead lever on the relevant position of power supply door, be equipped with the through-hole on the separation blade, when power supply unit closed, the tip of dead lever passes the through-hole, power supply door lock still includes the locking plate, and the width of locking plate is not more than the through-hole internal diameter, and length is greater than the through-hole internal diameter, and the locking plate articulates in the; after the end part of the fixed rod penetrates through the through hole, the locking plate rotates around the hinge shaft along the plane vertical to the horizontal plane and the blocking piece under the action of gravity, and the blocking plate is arranged outside the blocking piece to prevent the fixed rod from being separated from the through hole. The utility model discloses a power door lock of one-way auto-lock of anti-drop has simple structure, can realize one-way auto-lock, security performance height and locking advantage such as effectual.
Description
Technical Field
The utility model relates to a traffic safety field especially relates to a power door lock of one-way auto-lock of anti-drop.
Background
At present, the bottom of an existing rail transit vehicle can be hoisted with power supply equipment, and a power supply door plate is arranged outside the power supply equipment. The existing power supply door plate basically only uses a lock for fixing the door plate, the condition of lock leakage is not considered, if the door plate lock leakage occurs when the rail transit vehicle runs, the door plate is opened if the door plate lock leakage occurs, rainwater flows into power supply equipment to damage electrical components, the door plate falls off on a rail during the high-speed running of the rail transit vehicle if the door plate lock leakage occurs, and the loss and the consequence caused by the fact that the door plate falls off the rail are immeasurable.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a simple structure, can realize one-way auto-lock, security performance height and the effectual power door lock of the one-way auto-lock of anti-drop of locking.
In order to solve the technical problem, the utility model provides a technical scheme does:
a power supply door lock capable of preventing one-way self-locking from falling is characterized in that a fixing rod is arranged on the side wall of power supply equipment, a separation blade perpendicular to the fixing rod is arranged at the corresponding position of the power supply door, a through hole is formed in the separation blade, when the power supply door is closed on the power supply equipment, the end part of the fixing rod penetrates through the through hole, the power supply door lock further comprises a locking plate, the width of the locking plate is not more than the inner diameter of the through hole, the length of the locking; after the end part of the fixed rod penetrates through the through hole, the locking plate rotates around the hinge shaft along the plane vertical to the horizontal plane and the blocking piece under the action of gravity, and the blocking plate is arranged outside the blocking piece to prevent the fixed rod from being separated from the through hole.
As a further improvement of the above technical solution:
one end of the locking plate along the length direction is a light end, the other end of the locking plate is a heavy end, and the center of gravity of the locking plate leans against one side of the heavy end.
The end part of the fixed rod is provided with a groove, the locking plate is provided with a strip-shaped hole along the length direction, and the hinge shaft penetrates through the strip-shaped hole to fix the locking plate in the groove; the distance L from the center of the hinge shaft to the bottom wall of the groove is half of the width of the locking plate, an avoiding arc for avoiding the bottom wall of the groove during rotation is arranged at one corner of the heavy end of the locking plate, and the rest of the triangles are right angles; when the heavy end is closer to the fixed rod than the light end, the avoiding arc is positioned above the right angle of the heavy end.
And a heavy block is fixedly connected to the right angle of the heavy end of the locking plate.
The distance from the end edge of the light end to the inner wall of the strip-shaped hole is larger than the distance from the end edge of the heavy end to the inner wall of the strip-shaped hole.
The fixed rod, the blocking piece, the locking plate and the hinge shaft are all made of stainless steel.
The fixing rod is obliquely arranged relative to the horizontal plane, so that the end part of the fixing rod is higher than a rod body fixed on the power supply equipment.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a power lock of one-way auto-lock of anti-drop sets up the dead lever on power supply unit, sets up the separation blade on the power door, and when the power door was closed, the dead lever just can pass the through-hole formation plug-in connection on the separation blade. The tip of dead lever articulates there is the locking plate, the width of this locking plate is not more than the through-hole internal diameter, length is greater than the through-hole internal diameter, when the tip of dead lever passed the through-hole, the major axis of locking plate should be parallel so that the dead lever can pass the through-hole smoothly with the dead lever, pass the back, the locking plate can be followed and received the automatic state of rotating to the major axis is vertical of action of gravity under the parallel state of major axis and dead lever, because the length of locking plate is greater than the internal diameter of through-hole this moment, consequently make the. The utility model discloses a power door lock need not the manual operation locking, and its locking process relies on the action of gravity completely, locks in the initiative, and the security performance is higher, has not only saved drive energy or operation manpower, can also avoid forgetting a series of problems that the locking brought because of operating personnel's negligence, prevents to move in-process power door and opens, leads to the rainwater to damage electrical components and door plant and drops to the first class consequence on the rail.
Drawings
FIG. 1 is a schematic view showing an installation position of an anti-drop one-way self-locking power supply door lock in embodiment 1;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic structural view of the anti-drop one-way self-locking power supply door lock in embodiment 1;
fig. 4 is a schematic perspective view of the anti-drop one-way self-locking power supply door lock according to embodiment 2;
fig. 5 is a schematic front view of the anti-drop one-way self-locking power supply door lock in embodiment 2;
fig. 6 is a schematic top view of the anti-falling one-way self-locking power supply door lock in embodiment 2;
fig. 7 is a schematic view of an installation position of the anti-drop one-way self-locking power supply door lock in embodiment 3.
Illustration of the drawings: 1. a power supply device; 2. fixing the rod; 21. a groove; 3. a power supply gate; 4. a baffle plate; 41. a through hole; 5. a locking plate; 51. a light end; 52. heavy end; 521. avoiding arcs; 522. a weight block; 53. and (4) strip-shaped holes.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example 1:
as shown in fig. 1 and fig. 2, the power door lock of one-way auto-lock of anti-drop of this embodiment, be equipped with dead lever 2 on power supply unit 1's lateral wall, be equipped with on power door 3's relevant position with dead lever 2 vertically separation blade 4, be equipped with through-hole 41 on the separation blade 4, power door 3 is closed when power supply unit 1, the tip of dead lever 2 passes through-hole 41 and forms plug-in connection, power door lock still includes locking plate 5, the width of locking plate 5 is not more than the through-hole 41 internal diameter, length is greater than the through-hole 41 internal diameter, locking plate 5 articulates.
When the power door 3 is closed, the long axis of the locking plate 5 should be placed in a position parallel to the fixing rod 2, so that the fixing rod 2 can smoothly pass through the through hole 41, and the power door 3 can be closed onto the power device 1. After the end of the fixing rod 2 passes through the through hole 41, the locking plate 5 can automatically rotate to the state that the long axis is vertical under the action of gravity from the state that the long axis is parallel to the fixing rod 2, as shown in fig. 3, at this time, because the length of the locking plate 5 is greater than the inner diameter of the through hole 41, the fixing rod 2 cannot be pulled out of the through hole 41. The power door lock of this embodiment need not manual operation locking, and its locking process relies on the action of gravity completely, locks voluntarily, and the security performance is higher, has not only saved drive energy or operating manpower, can also avoid forgetting a series of problems that the locking brought because of operating personnel's negligence, prevents that power door 3 from opening in the operation process, leads to rainwater damage electrical components and door plant to drop to the rail etc. consequence.
In this embodiment, one end of the locking piece 5 in the length direction is a light end 51, and the other end is a heavy end 52, and the center of gravity of the locking piece 5 is close to the heavy end 52 side. The arrangement mode of gravity center eccentricity can make the locking plate 5 easier to rotate around the hinge shaft under the action of gravity, and further improves the self-locking safety of the power supply door lock.
Example 2:
the embodiment is substantially the same as embodiment 1, except that, as shown in fig. 4 to 6, in the embodiment, a groove 21 is formed at the end of the fixing rod 2, a strip-shaped hole 53 is formed in the locking piece 5 along the length direction, and a hinge shaft penetrates through the strip-shaped hole 53 to fix the locking piece 5 in the groove 21; the distance L from the center of the hinge shaft to the bottom wall of the groove 21 is half of the width of the locking plate 5, an avoiding arc 521 for avoiding the bottom wall of the groove 21 during rotation is arranged at one corner of the heavy end 52 of the locking plate 5, and the rest of the triangles are right angles; when the heavy end 52 is closer to the fixation rod 2 than the light end 51, the avoidance curve 521 is located above the right angle of the heavy end 52.
When the power door 3 is closed, an operator manually adjusts to enable the long axis of the locking plate 5 to be parallel to the fixed rod 2, at this time, the light end 51 is farther from the end part of the fixed rod 2 than the heavy end 52, the fixed rod 2 passes through the through hole 41, then the light end 51 can interfere with the bottom wall of the groove 21 because the lower part of the heavy end 52 is a right angle, so that the light end 51 can not move downwards to enable the locking plate 5 to rotate around the hinge shaft, the upper part of the heavy end 52 is an avoidance arc 521 which can not interfere with the bottom wall of the groove 21, and the weight at the lower right angle is larger than that at the avoidance arc, so that the light end 521 moves upwards to enable the locking plate 5 to rotate around the hinge shaft, then, because the hinge shaft passes through the strip-shaped hole 53, the locking plate 5 vertically moves downwards, so that the heavy end 52 is below, the light end 51 is above, and because both sides of the light end 51 are right, and the reverse unlocking is not performed. The embodiment realizes the one-way self-locking of the power supply door 3 through a simple structure, and has the advantages of low cost, convenient maintenance and better locking effect.
In this embodiment, the weight 522 is fixedly connected to the right angle of the heavy end 52 of the locking plate 5, so as to further increase the weight at the right angle, and ensure the turning direction of the locking plate 5, thereby further improving the performance of one-way self-locking.
In this embodiment, the distance from the end edge of the light end 51 to the inner wall of the strip-shaped hole 53 is greater than the distance from the end edge of the heavy end 52 to the inner wall of the strip-shaped hole 53, that is, the arrangement mode of the strip-shaped hole 53 on the locking plate 5 is the eccentric arrangement closer to the heavy end 52, and this arrangement mode increases the interference degree between the light end 51 and the bottom wall of the groove 21 after the locking plate 5 is turned over by gravity, thereby further optimizing the effect of preventing the locking plate 5 from turning over.
In this embodiment, the fixing rod 2, the blocking piece 4, the locking plate 5 and the hinge shaft are all made of stainless steel. When the vehicle runs, the working conditions such as wind, rain, different temperature environments and the like need to be faced, the stainless steel material has the effects of rust resistance and corrosion resistance while the strength and the rigidity are ensured, and the smoothness of the stainless steel material ensures the safety and the reliability of the structure, so that the long-term use of the power supply door lock is ensured. The hinge shaft is an elastic pin and adopts a national standard GB/T879.14 multiplied by 15-304-A2-70 to ensure interchangeability and matching precision.
Example 3:
this embodiment is substantially the same as embodiment 1 and embodiment 2, except that, as shown in fig. 7, in this embodiment, the fixing lever 2 is obliquely arranged with respect to the horizontal plane, so that the end of the fixing lever 2 is higher than the shaft fixed on the power supply device 1, and this arrangement makes it easier for the locking piece 5 to be turned over and locked with the power supply door 3 by the action of gravity.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a power lock of one-way auto-lock of anti-drop is equipped with dead lever (2) on the lateral wall of electrical power unit (1), be equipped with on the relevant position of electrical power door (3) with dead lever (2) vertically separation blade (4), be equipped with through-hole (41) on separation blade (4), when electrical power door (3) are closed in electrical power unit (1), through-hole (41), its characterized in that are passed to the tip of dead lever (2): the power supply door lock further comprises a locking plate (5), the width of the locking plate (5) is not more than the inner diameter of the through hole (41), the length of the locking plate is more than the inner diameter of the through hole (41), and the locking plate (5) is hinged to the end part of the fixing rod (2); after the end part of the fixing rod (2) penetrates through the through hole (41), the locking plate (5) rotates around the hinge shaft along the plane vertical to the horizontal plane and the blocking piece (4) under the action of gravity and is blocked outside the blocking piece (4) to prevent the fixing rod (2) from being separated from the through hole (41).
2. The anti-drop one-way self-locking power supply door lock according to claim 1, characterized in that: one end of the locking plate (5) along the length direction is a light end (51), the other end of the locking plate is a heavy end (52), and the center of gravity of the locking plate (5) leans against one side of the heavy end (52).
3. The anti-drop one-way self-locking power supply door lock according to claim 2, characterized in that: a groove (21) is formed in the end of the fixing rod (2), a strip-shaped hole (53) is formed in the locking plate (5) along the length direction, and the hinge shaft penetrates through the strip-shaped hole (53) to fix the locking plate (5) in the groove (21); the distance L from the center of the hinge shaft to the bottom wall of the groove (21) is half of the width of the locking plate (5), an avoiding arc (521) for avoiding the bottom wall of the groove (21) during rotation is arranged at one corner of the heavy end (52) of the locking plate (5), and the rest of the triangles are right angles; when the heavy end (52) is closer to the fixed rod (2) than the light end (51), the avoidance arc (521) is positioned above the right angle of the heavy end (52).
4. The anti-drop one-way self-locking power supply door lock according to claim 3, characterized in that: and a weight (522) is fixedly connected to the right angle of the heavy end (52) of the locking plate (5).
5. The anti-drop one-way self-locking power supply door lock according to claim 3, characterized in that: the distance from the end edge of the light end (51) to the inner wall of the strip-shaped hole (53) is larger than the distance from the end edge of the heavy end (52) to the inner wall of the strip-shaped hole (53).
6. The anti-drop one-way self-locking power supply door lock according to claim 1, characterized in that: the fixing rod (2), the blocking piece (4), the locking plate (5) and the hinge shaft are all made of stainless steel.
7. The anti-drop one-way self-locking power supply door lock according to claim 1, characterized in that: the fixing rod (2) is obliquely arranged relative to the horizontal plane, so that the end part of the fixing rod (2) is higher than a rod body fixed on the power supply equipment (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224278.8U CN211573019U (en) | 2019-12-12 | 2019-12-12 | Anti-drop one-way self-locking power supply door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224278.8U CN211573019U (en) | 2019-12-12 | 2019-12-12 | Anti-drop one-way self-locking power supply door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211573019U true CN211573019U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922224278.8U Active CN211573019U (en) | 2019-12-12 | 2019-12-12 | Anti-drop one-way self-locking power supply door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211573019U (en) |
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2019
- 2019-12-12 CN CN201922224278.8U patent/CN211573019U/en active Active
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