CN212453958U

CN212453958U - Isolation lock device convenient to reliable operation

Info

Publication number: CN212453958U
Application number: CN202021510738.XU
Authority: CN
Inventors: 李昭帝; 潘铖凌; 班登芳; 姚青云; 张礼国
Original assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Current assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-02-02
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses an isolation lock device convenient to reliable operation, including the lock core of fixing between installing support and outer end cover, the lock core on be connected with the rocking arm, the other end swing joint of rocking arm has the connecting plate, the other end and the set bar swing joint of connecting plate, the cover has a fixed bolster on the set bar, the end of fixed bolster is installed on the installing support, the installing support on be fixed with the torsional spring, the other end of torsional spring inserts the junction of rocking arm and connecting plate, the lock core be equipped with the third packing ring with the contact terminal surface of outer end cover; and a first gasket and a second gasket are sequentially arranged between the lock cylinder and the outer end cover along the axis direction of the lock cylinder. The utility model discloses cooperation circular gasket realizes the leakproofness of lock core position, overlaps the axial play volume that the lock core can be eliminated in lock core step department with the rubber packing ring, and the frictional resistance that receives when the nylon packing ring then can reduce the lock core and rotate for the device has greatly improved the reliability and the stability of device when guaranteeing the leakproofness.

Description

Isolation lock device convenient to reliable operation

Technical Field

The utility model relates to an keep apart the locking device, especially relate to an keep apart locking device convenient to reliable operation.

Background

Along with the progress of the times, the traffic industry plays a key role in economic development, subways become an important measuring scale for measuring the urban economic level, along with the dependence of people on the subways, the stability and the reliability of parts of the subways are particularly important, and the locking device of the subway door needs stronger reliability and stability. The lock core of the isolation lock device of the metro door is exposed on the outer surface of the vehicle body, so that better sealing performance is extremely needed while reliable operation is guaranteed, and because the lock core needs to be rotated, a gap exists in the axial direction of the lock core, so that the lock core can axially move, and meanwhile, the sealing performance of the door system can also be reduced. The existing isolation lock device realizes the locking and opening maintaining states of the door through the torsion spring and the lock bolt, and the problems that the sealing performance and the axial movement of the structure cannot be guaranteed under the condition that the lock core switch is smooth are guaranteed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing an isolation lock device convenient to reliable operation when guaranteeing the device leakproofness, realizes the reliable and stable operation of mechanism.

The technical scheme is as follows: the utility model discloses a lock core of fixing between installing support and outer end cover, the lock core on be connected with the rocking arm, the other end swing joint of rocking arm has the connecting plate, the other end and the set bar swing joint of connecting plate, the set bar on overlap and have the fixed bolster, the end of fixed bolster is installed on the installing support, the installing support on be fixed with the torsional spring, the other end of torsional spring inserts the junction of rocking arm and connecting plate, the lock core be equipped with the third packing ring with the contact terminal surface of outer end cover; and a first gasket and a second gasket are sequentially arranged between the lock cylinder and the outer end cover along the axis direction of the lock cylinder.

The two sides of the rotating arm are respectively provided with a short shaft sleeve and a long shaft sleeve, and the short shaft sleeve and the long shaft sleeve are both connected with the lock cylinder and used for limiting the axial movement of the rotating arm.

The third gasket is a circular gasket, and the circular gasket is placed in a groove formed in the circumferential direction of the lock cylinder, so that the outer end cover and the lock cylinder are sealed.

The first gasket adopts a rubber gasket, and the rubber gasket is in contact with the lock cylinder, so that the rotating arm can be ensured to stably rotate, and the axial movement of the lock cylinder can be limited.

The second gasket adopts a nylon gasket, and the nylon gasket is contacted with the end face of the outer end cover, so that the friction force in the movement process of the lock cylinder is reduced.

The rotating arm is hinged with the connecting plate through a bolt with a hole, and the locking bolt can be stretched and retracted by rotating the rotating arm.

The end part of the torsion spring is inserted into the hole of the bolt with the hole.

The torsion spring is installed on the installation support through the fixing screw, and the tension of the torsion spring can realize the stretching of the lock bolt.

And a limit pin is also fixed on the mounting bracket.

The outer end cover is connected with the mounting bracket through a countersunk screw.

Has the advantages that: the utility model discloses a reliable lock of set bar targets in place and opens the position with torsional spring cooperation rocking arm and connecting plate, and the recess structure cooperation circular packing ring of lock core can realize the leakproofness of lock core position, overlaps the axial displacement that can eliminate the lock core with the rubber packing ring in lock core step department, and the frictional resistance that the nylon packing ring received when then can reduce the lock core and rotate for the device has greatly improved the reliability and the stability of device when guaranteeing the leakproofness.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an internal schematic view of the open state of the present invention;

fig. 3 is an internal schematic view of the locked state of the present invention;

FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 1;

fig. 5 is a partially enlarged view of fig. 4.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 5, the utility model discloses an outer end cover 1, outer end cover 1 is connected with installing support 13 through four countersunk screw 2, is equipped with lock core 4 between outer end cover 1 and the installing support 13, is connected with rocking arm 5 on the lock core 4, and rocking arm 5's the other end is articulated with connecting plate 6 through foraminiferous bolt 7, and connecting plate 6's the other end is articulated with set bar 8, can realize the flexible of set bar 8 through rotating rocking arm 5. The lock bolt 8 is sleeved with the fixing support 3, the fixing support 3 is of an L-shaped structure, and the tail end of the L-shaped structure is fixed on the mounting support 13 and used for limiting the lock bolt 8, as shown in fig. 2 and 3.

As shown in fig. 2 and 3, one end of the rotating arm 5 is inserted into the bolt with a hole 7, the end of the bolt with a hole 7 is provided with a deep hole, one end of the torsion spring 12 is inserted into the hole of the bolt with a hole 7, the other end of the torsion spring is sleeved on the fixing screw 9 and fixed on the mounting bracket 13 through the fixing screw 9, and the tension of the torsion spring 12 can ensure that the lock bolt 8 can stretch and retract in place. When the lock cylinder 4 rotates anticlockwise, the latch 8 is driven to extend through the rotating arm 5 and the connecting plate 6, when the rotating arm 5 is in contact with the inclined plane of the fixed support 3, the extension of the latch 8 reaches the maximum, the tension of the torsion spring 12 enables the latch 8 to keep the maximum extension state, and at the moment, the lock cylinder 4 is in an open state, as shown in fig. 2. When the lock core 4 rotates clockwise, the latch 8 is driven to contract by the rotating arm 5 and the connecting plate 6, when the rotating arm 5 contacts the positioning pin 10 fixed on the mounting bracket 13, the contraction amount of the latch 8 reaches the maximum, and the lock core 4 is in a locked state, and the tension of the torsion spring 12 keeps the latch 8 in the maximum contraction amount state, as shown in fig. 3.

As shown in fig. 4 and 5, a short sleeve 16 and a long sleeve 17 are respectively sleeved on two sides of the rotating arm 5, and the short sleeve 16 and the long sleeve 17 are both sleeved on the lock core 4 for limiting the axial movement of the rotating arm 5. A groove is formed in the end face, in contact with the outer end cover 1, of the lock cylinder 4 along the circumferential direction of the lock cylinder 4, and a circular gasket 11 is placed in the groove, so that the outer end cover 1 and the lock cylinder 4 are sealed. A rubber gasket 15 and a nylon gasket 14 are sequentially sleeved between the lock cylinder 4 and the outer end cover 1 along the axial direction of the lock cylinder, and the rubber gasket 15 is in step contact with the lock cylinder 4, so that the tumbler 5 can be ensured to stably rotate, and the axial movement of the lock cylinder 4 can be limited; the nylon gasket 14 is contacted with the end face of the outer end cover 1, so that the friction force in the movement process of the lock cylinder 4 is reduced.

Claims

1. An isolation lock device convenient for reliable operation comprises a lock cylinder (4) fixed between a mounting support (13) and an outer end cover (1), wherein a rotating arm (5) is connected to the lock cylinder (4), a connecting plate (6) is movably connected to the other end of the rotating arm (5), the other end of the connecting plate (6) is movably connected with a lock bolt (8), a fixing support (3) is sleeved on the lock bolt (8), the tail end of the fixing support (3) is mounted on the mounting support (13), a torsion spring (12) is fixed on the mounting support (13), and the other end of the torsion spring (12) is inserted into the joint of the rotating arm (5) and the connecting plate (6), and is characterized in that a third gasket is arranged on the contact end face of the lock cylinder (4) and the outer end cover (1); and a first gasket and a second gasket are sequentially arranged between the lock cylinder (4) and the outer end cover (1) along the axis direction of the lock cylinder.

2. An isolation lock device convenient for reliable operation according to claim 1, characterized in that the tumbler (5) is provided with a short shaft sleeve (16) and a long shaft sleeve (17) on both sides, respectively, and the short shaft sleeve (16) and the long shaft sleeve (17) are connected with the lock cylinder (4).

3. An isolation lock device with easy reliable operation according to claim 1, characterized in that the third washer is a circular washer (11), and the circular washer (11) is placed in a groove formed along the circumference of the lock cylinder (4).

4. An isolation lock device with easy reliable operation according to claim 1, characterized in that the first washer is a rubber washer (15), and the rubber washer (15) is in contact with the lock cylinder (4).

5. An isolation lock device convenient for reliable operation according to claim 1, characterized in that the second washer is a nylon washer (14), and the nylon washer (14) is in contact with the end face of the outer end cap (1).

6. An isolation lock device with easy reliable operation according to claim 1 or 2, characterized in that the pivoted arm (5) is hinged to the connecting plate (6) by means of a bolt (7) with holes.

7. An isolation lock device with easy reliable operation according to claim 1, characterized in that the end of the torsion spring (12) is inserted into the hole of the holed bolt (7).

8. An isolation lock device with easy reliable operation according to claim 1 or 7, characterized in that the torsion spring (12) is mounted on the mounting bracket (13) by means of a fixing screw (9).

9. An isolator lock assembly as claimed in claim 1, characterised in that a limit pin (10) is also secured to the mounting bracket (13).

10. An isolation lock device convenient for reliable operation according to claim 1, wherein the outer end cap (1) is connected to the mounting bracket (13) by means of a countersunk screw (2).