Auxiliary locking device for rail vehicle door system

Abstract

The present invention provides an auxiliary lock device for a rail vehicle door system, belonging to the field of rail transportation technology. It includes a first partition plate and a second partition plate formed in parallel on the front side of a base plate, a rotating shaft hole is provided on both partition plates, a rotating shaft is inserted in the rotating shaft hole, the rotating shaft extends out of the upper end of the rotating shaft hole of the first partition plate, and a swinging part is provided on the side wall, a driving member is provided on the upper end of the base plate, a lock tongue shaft is fixed between the two partition plates, a lock tongue with a lock tongue protrusion formed on one end is sleeved on the lock tongue shaft, a swing rod is sleeved on the side wall of the rotating shaft located between the two partition plates, a connecting rod is hinged at the end of the swing rod, and the other end of the connecting rod is hinged to the end of the lock tongue, a reset torsion spring is sleeved on the rotating shaft, a vibration-stopping hole is provided on one side of the connecting rod, a vibration-stopping shaft is fixed between the first partition plate and the second partition plate, and a vibration-stopping tension spring is provided between the vibration-stopping shaft and the vibration-stopping hole. The present invention has a simple structure, convenient installation, and greatly reduces the noise generated during operation.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transportation, and in particular relates to an auxiliary locking device for a rail vehicle door system. Background Art

[0002] With the rapid development of rail transit including subways, light rails, high-speed rails, etc., its operating speed continues to increase, and the requirements for air tightness and noise control are also gradually increasing.

[0003] The vehicle door system of traditional rail vehicles usually uses LS locks or full-range locking devices for door locks. In addition to the complex structure, there are disadvantages such as difficulty in maintenance. At the same time, during the locking and opening process, jamming is prone to occur, accompanied by loud lock noise and large occupied volume. Summary of the invention

[0004] The object of the present invention is to provide an auxiliary locking device for a rail vehicle door system, which can effectively reduce the occupied space and significantly reduce the noise during the locking and unlocking process.

[0005] The object of the present invention is achieved in that:

[0006] An auxiliary lock device for a rail vehicle door system comprises a base plate, a first partition plate and a second partition plate are formed on the front side of the base plate, and corresponding shaft holes are opened on the first partition plate and the second partition plate, and a shaft is passed through the shaft hole, and the shaft extends out of the upper end of the shaft hole of the first partition plate, and a swinging part is arranged on the side wall of the extended part, and a driving member for driving the swinging part and driving the shaft to rotate at the same time is arranged on the upper end of the base plate, and a lock tongue shaft is fixed between the first partition plate and the second partition plate, and a lock tongue protrusion is formed on one end of the lock tongue shaft A lock tongue, a rocker arm is sleeved on the side wall of the rotating shaft between the first partition and the second partition, a connecting rod is hinged at the end of the rocker arm, and the other end of the connecting rod is hinged to the end of the lock tongue, and a reset torsion spring is sleeved on the rotating shaft for driving the rocker arm to maintain a locked state. When the driving member drives the rotating shaft to rotate, the rocker arm overcomes the torsion force of the reset torsion spring and drives the connecting rod to link, and the connecting rod drives the lock tongue to rotate along the lock tongue shaft to achieve unlocking, a vibration-proof hole is opened on one side of the connecting rod, a vibration-proof shaft is fixed between the first partition and the second partition, and a vibration-proof tension spring is arranged between the vibration-proof shaft and the vibration-proof hole.

[0007] The present invention is further configured such that parallel contact sleeve plates are formed on the top of the rotating shaft, a contact sleeve shaft parallel to the axial direction of the rotating shaft is rotatably arranged between the contact sleeve plates, and a contact sleeve in contact with the action end of the driving member is sleeved on the contact sleeve shaft.

[0008] The present invention is further configured such that the driving member is a driving cylinder or a driving oil cylinder, and the output end of the driving member abuts against the side wall of the contact sleeve; and a fastener for locking the rotation of the contact sleeve shaft is provided on the contact sleeve plate.

[0009] The present invention is further configured such that a limiting shaft located between the lock tongue shaft and the rotating shaft is provided between the first partition plate and the second partition plate; when the driving member does not drive the rotating shaft to rotate, the reset torsion spring drives the rocker arm to abut against the side wall of the limiting shaft, and when one side of the rocker arm abuts against the side wall of the limiting shaft, the lock tongue protrusion of the lock tongue is in a locked state.

[0010] The present invention is further configured such that the number of the return torsion springs is two, the rocker arm is located between the two return torsion springs, one end of the two return torsion springs is fixedly connected to the upper and lower side walls of the rocker arm, and the other ends of the two return torsion springs are fixedly connected to the shaft wall of the limit shaft.

[0011] The present invention is further configured such that an embedding portion is formed on one side of the connecting rod away from the anti-vibration hole, and an embedding groove is provided on one side of the locking tongue. When the reset torsion spring drives the rocker arm to abut against the wall of the limiting shaft, the embedding portion on the side wall of the connecting rod is embedded in the embedding groove.

[0012] The present invention is further configured such that the engaging portion includes an outer groove of a lock tongue shaft and an outer groove of a connecting rod shaft, and an engaging protrusion is formed between the outer groove of the lock tongue shaft and the outer groove of the connecting rod shaft, and when the reset torsion spring drives the rocker arm to abut against the wall of the limiting shaft, the engaging protrusion is embedded in the engaging groove.

[0013] The present invention is further configured such that the connecting rod is a double-layer structure, and both ends of the connecting rod are hingedly connected to the end of the rocker arm and the end of the locking tongue through a pin.

[0014] The present invention is further configured such that a connecting rod shaft is passed through the vibration-stopping holes on the connecting rod, and two ends of the vibration-stopping tension spring are respectively fixed on the vibration-stopping shaft and the connecting rod shaft.

[0015] The present invention is further configured such that the rotating shaft, the locking tongue shaft and the anti-vibration shaft are all sleeved with anti-friction sleeves.

[0016] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0017] 1. The auxiliary lock device provided by the present invention utilizes a driving member to rotate the rotating shaft, and the rotating rotating shaft is linked to the connecting rod to drive the rotation of the lock tongue, thereby realizing the lock tongue protrusion from a locked state to an unlocked state. During the unlocking process, a vibration-proof tension spring is used to effectively reduce the noise generated during the movement. The device occupies a small space as a whole, has a simple structure, and also provides convenience for installation.

[0018] 2. The present invention further provides a contact sleeve at the top of the rotating shaft for contacting the working end of the driving member, which simply and efficiently drives the rotating shaft to rotate by linear motion, with a short stroke and more accurate driving; and the contact sleeve can reduce the friction of the contact sleeve shaft to ensure long-term use, and the use of fasteners also makes it difficult for the contact sleeve shaft to fall off.

[0019] 3. The present invention further provides a limit shaft. The use of the limit shaft can allow the reset torsion spring to drive the rocker arm to put the lock tongue protrusion on the lock tongue in a locked state, and it is also easy to fix the end of the reset torsion spring; the double reset torsion spring can provide better stability during driving.

[0020] 4. In the present invention, matching engaging portions and engaging grooves are provided on one side of the connecting rod and the locking tongue, so that they can fit together in the locked state, thereby making the locked state more stable.

[0021] 5. The connecting rod further provided by the present invention adopts a double-layer design, in which the rocker arm and the end of the lock tongue are clamped and further hinged in the form of a pin. The double-layer design can balance the upper and lower forces when the hinge rotates, making the opening more stable.

[0022] 6. The friction-reducing sleeve further provided in the present invention can reduce friction, reduce wear and reduce noise to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the substrate structure of the present invention;

[0024] Figure 2 is a structural schematic diagram of the assembly shaft body of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the present invention;

[0026] Figure 4 It is a side structural schematic diagram of the present invention;

[0027] Figure 5 is a cross-sectional schematic diagram of the present invention in an unlocked state;

[0028] Figure 6 is a cross-sectional schematic diagram of the present invention in a locked state;

[0029] Figure 7 It is a schematic diagram of the top view of the structure of the present invention;

[0030] Reference numerals:

[0031] 1-substrate; 10-first baffle; 100-rotating shaft hole; 11-second baffle;

[0032] 2-rotating shaft; 20-swinging part; 200-contact sleeve plate; 201-contact sleeve shaft; 202-contact sleeve; 203-fastener;

[0033] 3- driving member;

[0034] 4-Lock bolt shaft;

[0035] 5-lock tongue; 50-lock tongue protrusion; 51-embedded groove;

[0036] 6-rocker; 60-reset torsion spring;

[0037] 7-connecting rod; 70-vibration-stopping hole; 71-embedded portion; 710-external groove of the lock tongue shaft; 711-external groove of the connecting rod shaft; 712-embedded protrusion;

[0038] 8- anti-vibration shaft; 80- anti-vibration tension spring;

[0039] 9-Limiting axis. DETAILED DESCRIPTION

[0040] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1 — Figure 7 :

[0041] An auxiliary lock device for a rail vehicle door system includes a base plate 1, a first partition plate 10 and a second partition plate 11 are formed on the front side of the base plate, and corresponding shaft holes 100 are opened on the first partition plate 10 and the second partition plate 11. A shaft 2 is passed through the shaft hole 100, and the shaft 2 extends out of the upper end of the shaft hole 100 of the first partition plate 10, and a swinging part 20 is provided on the side wall of the extended part. A driving member 3 for driving the swinging part 20 and driving the shaft 2 to rotate at the same time is provided at the upper end of the base plate 1, and a lock tongue shaft 4 is fixed between the first partition plate 10 and the second partition plate 11, and a lock tongue protrusion 50 is formed on one end of the lock tongue shaft 4. The lock tongue 5 is provided with a rocker arm 6 on the side wall of the rotating shaft 2 between the first partition plate 10 and the second partition plate 11, and a connecting rod 7 is hinged at the end of the rocker arm 6, and the other end of the connecting rod 7 is hinged to the end of the lock tongue 5. A reset torsion spring 60 is provided on the rotating shaft 2 for driving the rocker arm 6 to maintain a locked state. When the driving member 3 drives the rotating shaft 2 to rotate, the rocker arm 6 overcomes the torsion of the reset torsion spring 60 and drives the connecting rod 7 to link, and the connecting rod 7 drives the lock tongue 5 to rotate along the lock tongue shaft 4 to achieve unlocking. A vibration-proof hole 70 is provided on one side of the connecting rod 7, and a vibration-proof shaft 8 is fixed between the first partition plate 10 and the second partition plate 11, and a vibration-proof tension spring 80 is arranged between the vibration-proof shaft 8 and the vibration-proof hole 70.

[0042] During the implementation process, Figure 5-Figure 6 As shown, the driving member 3 is usually used to drive the rotating shaft 2 to rotate, and the rotation of the rocker arm 6 drives the movement of the connecting rod 7, and the connecting rod 7 drives the lock tongue 5 to rotate along the lock tongue axis 4, so that the lock tongue protrusion 50 is changed from a locked state to an unlocked state. During the unlocking process, the vibration-proof tension spring 80 between the vibration-proof shaft 8 and the vibration-proof hole 70 provides a good shock-absorbing effect in the above movement, thereby reducing vibration noise.

[0043] The first partition plate and the second partition plate on the substrate are formed integrally with the substrate, thereby ensuring the uniformity and consistency of the substrate material, improving the product qualification rate, and ensuring various strength indicators of the substrate.

[0044] Preferably, the swinging part 20 includes contact sleeve plates 200 formed parallel to the top of the rotating shaft 2, and a contact sleeve shaft 201 axially parallel to the rotating shaft 2 is rotatably arranged between the contact sleeve plates 200, and a contact sleeve 202 in contact with the active end of the driving member 3 is sleeved on the contact sleeve shaft 201.

[0045] The contact sleeve 202 is rotatably sleeved on the contact sleeve shaft 201, and the contact sleeve 202 is made of anti-friction material. When the contact sleeve 202 abuts against the driving end of the driven part, it will rotate to a certain extent. The provision of the anti-friction material reduces the friction at this location.

[0046] Preferably, the driving member 3 is a driving cylinder or a driving oil cylinder, and the output end of the driving member 3 abuts against the side wall of the contact sleeve 202; the contact sleeve plate 200 is provided with a fastener 203 for locking the contact sleeve shaft 201 from rotating.

[0047] It is worth mentioning that the driving member can also be an electric element, which can realize the linear motion of the piston rod; since the rotation requirement of the contact sleeve shaft 201 is relatively low during the rotation of the contact sleeve 202, the fastener 203 is used to fix it, so that the contact sleeve shaft 201 at this location can be more secure and reduce noise to a certain extent.

[0048] Preferably, a limiting shaft 9 is provided between the first partition plate 10 and the second partition plate 11 and is located between the lock tongue shaft 4 and the rotating shaft 2. When the driving member 3 does not drive the rotating shaft 2 to rotate, the reset torsion spring 60 drives the rocker arm 6 to abut against the side wall of the limiting shaft 9, and when one side of the rocker arm 6 abuts against the side wall of the limiting shaft 9, the lock tongue protrusion 50 of the lock tongue 5 is in a locked state.

[0049] In the above structure, the limiting shaft 9 can put the swing rod 6 in a state of locking the lock tongue, effectively limit the swing rod, and prevent the swing rod from being excessively twisted and rotated by the return torsion spring.

[0050] Preferably, the number of the return torsion springs 60 is two, the swing rod 6 is located between the two return torsion springs 60, one end of the two return torsion springs 60 is fixedly connected to the upper and lower side walls of the swing rod 6, and the other ends of the two return torsion springs 60 are fixedly connected to the shaft wall of the limit shaft 9. The two return torsion springs 60 can be more stable up and down when driving the swing rod 6, and the swing rod return force is balanced, which is a redundant design.

[0051] Preferably, an embedding portion 71 is formed on the side of the connecting rod 7 away from the anti-vibration hole 70, and an embedding groove 51 is provided on one side of the locking tongue 5. When the reset torsion spring 60 drives the rocker arm 6 to abut against the wall of the limiting shaft 9, the embedding portion 71 on the side wall of the connecting rod 7 is embedded in the embedding groove 51.

[0052] Preferably, the interlocking portion 71 includes an outer groove 710 of the lock tongue shaft and an outer groove 711 of the connecting rod shaft, and an interlocking protrusion 712 is formed between the outer groove 710 of the lock tongue shaft and the outer groove 711 of the connecting rod shaft. When the reset torsion spring 60 drives the rocker arm 6 to abut against the shaft wall of the limiting shaft 9, the interlocking protrusion 712 is embedded in the interlocking groove 51.

[0053] The matching engaging groove 51 and its engaging portion 71 effectively realize the locking and unlocking limiting functions.

[0054] Preferably, the connecting rod 7 is a double-layer structure, and both ends of the connecting rod 7 are hingedly connected to the end of the swing rod 6 and the end of the lock tongue 5 through a pin. The connecting rod with a double-layer structure can provide better stability in the process of linking the swing rod, the lock tongue and the anti-vibration tension spring 80, prevent vibration in the up and down directions, and effectively reduce noise.

[0055] Preferably, a connecting rod shaft is provided between the vibration-proof holes 70 on the connecting rod 7, and two ends of the vibration-proof tension spring 80 are respectively fixed on the vibration-proof shaft 8 and the connecting rod shaft.

[0056] In the above structure, Figure 4 As shown, a shaft sleeve is provided on the vibration-proof shaft 8, and a socket for the end of the vibration-proof tension spring 80 is also provided on the shaft sleeve to prevent it from falling off.

[0057] Preferably, the rotating shaft 2, the locking tongue shaft 4 and the anti-vibration shaft 8 are all sleeved with anti-friction sleeves. The provision of the anti-friction sleeves can ensure the rotation accuracy and durability of the rotating shaft, the connecting rod and the locking tongue, and reduce the jamming caused by resistance or excessive wear.

[0058] The anti-vibration tension spring produces an oblique pulling force on the connecting rod, so that the above-mentioned components can be in close contact with the friction-reducing sleeve, thereby achieving the purpose of eliminating noise; and the anti-vibration tension spring is also a redundant design. If any two of the two reset torsion springs and the anti-vibration tension spring fail, the device can be reset normally and will not affect the normal operation of the train.

[0059] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary locking device for a rail vehicle door system, characterized in that: The invention comprises a base plate (1), wherein a first partition plate (10) and a second partition plate (11) are formed on the front side thereof and are parallel to each other; the first partition plate (10) and the second partition plate (11) are provided with corresponding rotation shaft holes (100); a rotation shaft (2) is passed through the rotation shaft hole (100); the rotation shaft (2) extends out of the upper end of the rotation shaft hole (100) of the first partition plate (10); a swinging portion (20) is provided on the side wall of the extended portion; a driving member (3) is provided on the upper end of the base plate (1) for driving the swinging portion (20) and driving the rotation shaft (2) to rotate at the same time ... A lock tongue shaft (4) is fixed between the first partition plate (10) and the second partition plate (11), a lock tongue (5) having a lock tongue protrusion (50) formed on one end is sleeved on the lock tongue shaft (4), a swing rod (6) is sleeved on the side wall of the rotating shaft (2) between the first partition plate (10) and the second partition plate (11), an end of the swing rod (6) is hingedly connected to a connecting rod (7), and the other end of the connecting rod (7) is hingedly connected to the end of the lock tongue (5), and a reset torsion spring (60) is sleeved on the rotating shaft (2) for driving the swing rod (6) to maintain a locked state. When the driving member (3) drives the rotating shaft (2) to rotate, the swing rod (6) overcomes the reset torsion spring (60) The torsion spring (60) generates torque and drives the connecting rod (7) to move in a linkage manner. The connecting rod (7) drives the lock tongue (5) to rotate along the lock tongue shaft (4) to achieve unlocking. A vibration-stopping hole (70) is provided on one side of the connecting rod (7). A vibration-stopping shaft (8) is fixed between the first partition plate (10) and the second partition plate (11). A vibration-stopping tension spring (80) is provided between the vibration-stopping shaft (8) and the vibration-stopping hole (70). A limiting shaft (9) located between the lock tongue shaft (4) and the rotating shaft (2) is provided between the first partition plate (10) and the second partition plate (11). When the driving member (3) does not drive the rotating shaft (2) to rotate, the locking member (5) is locked. When the reset torsion spring (60) drives the rocking rod (6) to abut against the side wall of the limiting shaft (9), and when one side of the rocking rod (6) abuts against the side wall of the limiting shaft (9), the lock tongue protrusion (50) of the lock tongue (5) is in a locked state, an embedding portion (71) is formed on the side of the connecting rod (7) away from the anti-vibration hole (70), and an embedding groove (51) is provided on one side of the lock tongue (5), and when the reset torsion spring (60) drives the rocking rod (6) to abut against the shaft wall of the limiting shaft (9), the embedding portion (71) on the side wall of the connecting rod (7) is embedded in the embedding groove (51).

2. The auxiliary locking device for a rail vehicle door system according to claim 1, characterized in that: The swinging part (20) comprises contact sleeve plates (200) formed parallel to each other at the top of the rotating shaft (2), a contact sleeve shaft (201) rotatably arranged between the contact sleeve plates (200) and parallel to the axial direction of the rotating shaft (2), and a contact sleeve (202) contacting the active end of the driving member (3) is sleeved on the contact sleeve shaft (201).

3. The auxiliary locking device for a rail vehicle door system according to claim 2, characterized in that: The driving member (3) is a driving cylinder or a driving oil cylinder or an electric driving member, and the output end of the driving member (3) abuts against the side wall of the contact sleeve (202); a fastener (203) for locking the rotation of the contact sleeve shaft (201) is provided on the contact sleeve plate (200).

4. The auxiliary locking device for a rail vehicle door system according to claim 1, characterized in that: The number of the return torsion springs (60) is two, the swing rod (6) is located between the two return torsion springs (60), one end of the two return torsion springs (60) is fixedly connected to the upper and lower side walls of the swing rod (6), and the other ends of the two return torsion springs (60) are fixedly connected to the shaft wall of the limit shaft (9).

5. The auxiliary locking device for a rail vehicle door system according to claim 1, characterized in that: The engaging portion (71) comprises a bolt shaft outer groove (710) and a connecting rod shaft outer groove (711), and an engaging protrusion (712) is formed between the bolt shaft outer groove (710) and the connecting rod shaft outer groove (711). When the return torsion spring (60) drives the swing rod (6) to abut against the shaft wall of the limit shaft (9), the engaging protrusion (712) is embedded in the engaging groove (51).

6. The auxiliary locking device for a rail vehicle door system according to claim 1, characterized in that: The connecting rod (7) is a double-layer structure, and both ends of the connecting rod (7) are hingedly connected to the end of the swing rod (6) and the end of the lock tongue (5) through a pin shaft.

7. The auxiliary locking device for a rail vehicle door system according to claim 6, characterized in that: A connecting rod shaft is inserted between the vibration-stopping holes (70) on the connecting rod (7), and two ends of the vibration-stopping tension spring (80) are respectively fixed to the vibration-stopping shaft (8) and the connecting rod shaft.

8. The auxiliary locking device for a rail vehicle door system according to claim 1, characterized in that: The rotating shaft (2), the locking tongue shaft (4) and the anti-vibration shaft (8) are all sleeved with anti-friction sleeves.

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