Emergency unlocking device for rail vehicle door

Abstract

The utility model provides an emergency unlocking device for a rail vehicle door, and belongs to the technical field of rail vehicle door unlocking devices. The unlocking mechanism comprises an unlocking support and a rotating shaft connected to the unlocking support, the rotating shaft is sequentially sleeved with an upper swing rod, an unlocking reset rod used for driving a locking mechanism and a lower swing rod which are rotationally connected, one side of the unlocking reset rod is connected with a reset spring, and the other end of the reset spring is fixed to the unlocking support. A travel switch matched with the unlocking reset rod is arranged on the unlocking support, steel wire ropes are fixed to the tail of the upper swing rod and the tail of the lower swing rod, when the two steel wire ropes are tensioned, the upper swing rod or the lower swing rod rotates along the rotating shaft and drives the unlocking reset rod to rotate along the rotating shaft, and the unlocking reset rod rotates to trigger the travel switch. The device has the advantages of convenience in installation, high safety logicality, convenience in maintenance and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of unlocking devices for rail vehicle doors, and particularly refers to an emergency unlocking device for rail vehicle doors. Background Art

[0002] At present, due to the different types and product differences of rail transit vehicle doors, there are various forms of emergency unlocking styles. Combining the characteristics of the locking structure, a suitable emergency unlocking composition is matched. At the same time, safety logic and operation requirements also need to be met.

[0003] For the existing emergency unlocking device, a single steel wire rope is used in a tensioned form, and it is relatively difficult to adjust the length of the steel wire rope in terms of structure, and it is rather cumbersome during maintenance. Summary of the Invention

[0004] The purpose of the utility model is to provide an emergency unlocking device for rail vehicle doors, which is convenient to adjust, easy to install, safe and reliable, and convenient for maintenance.

[0005] The purpose of the utility model is realized as follows:

[0006] An emergency unlocking device for rail vehicle doors includes an unlocking bracket and a rotating shaft connected to the unlocking bracket. An upper swing rod, an unlocking reset rod for driving a locking mechanism, and a lower swing rod are sequentially sleeved on the rotating shaft in a rotatable connection. A reset spring is connected to one side of the unlocking reset rod, and the other end of the reset spring is fixed to the unlocking bracket. A travel switch matching the unlocking reset rod is arranged on the unlocking bracket. Steel wire ropes are fixed to the tails of the upper swing rod and the lower swing rod. When the two groups of steel wire ropes are tensioned, the upper swing rod or the lower swing rod rotates along the rotating shaft, and drives the unlocking reset rod to rotate along the rotating shaft, and the rotation of the unlocking reset rod triggers the travel switch.

[0007] The utility model is further arranged such that through holes for the steel wire ropes to penetrate are formed at the tails of the upper swing rod and the lower swing rod, and a steel wire rope clamp is arranged on the part of the steel wire rope extending out of the through hole, and a steel wire rope fixing column is arranged at the other end of the steel wire rope.

[0008] The utility model is further arranged such that arc-shaped notches corresponding to each other up and down are formed on the lower end surface of the upper swing rod and the upper end surface of the lower swing rod, and corresponding linkage protrusions are arranged at the upper and lower ends of the unlocking reset rod, and the linkage protrusions at the upper and lower ends can slide in the arc-shaped notches on the upper and lower sides.

[0009] The utility model is further arranged such that two groups of arc-shaped notches that are centrosymmetric are formed on the lower end surface of the upper swing rod and the upper end surface of the lower swing rod, and two groups of centrosymmetric linkage protrusions are arranged at the upper and lower ends of the unlocking reset rod.

[0010] The utility model is further configured such that the travel switch includes a contact rod, a contact rod groove is formed on one side of the unlocking and resetting rod, and the end of the contact rod abuts against the contact rod groove. When the unlocking and resetting rod is rotated, the end of the contact rod no longer abuts against the contact rod groove.

[0011] The utility model is further configured such that trigger notches are formed on one side of the upper swing rod and the lower swing rod.

[0012] The utility model is further configured such that a resisting rod which abuts against the tails of the upper swing rod and the lower swing rod is formed on the unlocking bracket. When the two groups of steel wire ropes are tightened, the tails of the upper swing rod and the lower swing rod no longer abut against the side wall of the resisting rod.

[0013] The prominent and beneficial technical effects of the utility model compared with the prior art are as follows:

[0014] 1. The emergency unlocking device provided by the utility model drives the unlocking and resetting rod to rotate by pulling the upper and lower swing rods through two groups of steel wire ropes, thereby triggering the travel switch and realizing the output of the unlocking signal. Its overall structure is simple, the installation is convenient, and the internal maintenance is convenient. At the same time, the double-strand steel wire rope has diverse triggering signals and is more convenient to adjust.

[0015] 2. The utility model has strong integrity, is convenient to install, improves the reliability of the door system after being installed on the rail car door, and reduces the maintenance cost at the same time.

[0016] 3. In the utility model, wire rope grips and wire rope fixing columns are arranged at both ends of the steel wire rope, which can adjust the tension degree of the steel wire rope and facilitate the maintenance and adjustment function.

[0017] 4. The utility model further adopts a matching linkage protrusion and arc-shaped notch between the upper swing rod and the lower swing rod and the unlocking and resetting rod to realize the swing control of the unlocking and resetting rod when the upper swing rod or the lower swing rod rotates; and further adopts two groups of the above structures, which can make the rotation more stable.

[0018] 5. Trigger notches are formed on both the upper swing rod and the lower swing rod of the utility model, which can provide more trigger information for the travel switch, thereby generating more signals such as inner door locking signal or outer door locking signal, and further improving the reliability and safety of the door system.

[0019] 6. The utility model further sets a resisting rod on the unlocking bracket, which limits the reset stroke of the upper and lower swing rods, so that the unlocking device is within a reasonable reset range and ensures the reliability after installation. Description of the Drawings

[0020] Figure 1It is a schematic diagram of the structure of the present utility model in the unlocked state Figure 1 ;

[0021] Figure 2 It is a schematic diagram of the structure of the present utility model in the unlocked state;

[0022] Figure 3 It is a schematic diagram of the structure of the present utility model in the unlocked state Figure 2 ;

[0023] Figure 4 It is an exploded view of the upper and lower swing rods and the unlocking and resetting rod of the present utility model

[0024] Reference numerals:

[0025] 1 - unlocking bracket; 10 - abutting rod;

[0026] 2 - rotating shaft;

[0027] 3 - upper swing rod; 30 - arc-shaped notch; 31 - trigger notch; 4 - lower swing rod;

[0028] 5 - unlocking and resetting rod; 50 - linkage projection; 51 - contact rod groove;

[0029] 6 - reset spring; 7 - travel switch; 70 - contact rod;

[0030] 8 - steel wire rope; 80 - steel wire rope clamp; 81 - steel wire rope fixing post. Detailed implementation manners

[0031] The present utility model will be further described below with reference to the accompanying drawings in specific embodiments. See Figure 1 — Figure 4 :

[0032] An emergency unlocking device for a rail vehicle door includes an unlocking bracket 1 and a rotating shaft 2 connected to the unlocking bracket 1. An upper swing rod 3, an unlocking and resetting rod 5 for driving a locking mechanism, and a lower swing rod 4 are sequentially sleeved on the rotating shaft 2 in a rotatable connection. A reset spring 6 is connected to one side of the unlocking and resetting rod 5, and the other end of the reset spring 6 is fixed to the unlocking bracket 1. A travel switch 7 matching the unlocking and resetting rod 5 is arranged on the unlocking bracket 1. Steel wire ropes 8 are fixed to the tails of the upper swing rod 3 and the lower swing rod 4. When the two groups of steel wire ropes 8 are tightened, the upper swing rod 3 or the lower swing rod 4 rotates along the rotating shaft 2 and drives the unlocking and resetting rod to rotate along the rotating shaft 2, and the rotation of the unlocking and resetting rod 5 triggers the travel switch 7.

[0033] During the implementation, after the unlocking device is installed, during the emergency unlocking of the vehicle door, the two sets of steel wires correspond to the inner door and the outer door respectively. After the steel wires are tightened, the upper swing rod or the lower swing rod will rotate along the rotating shaft 2, and at the same time, the unlocking reset rod will rotate. The unlocking reset rod 5 will adapt to the lock mechanism, and the unlocking function will be brought about during its rotation. During the rotation of the unlocking reset rod 5, the travel switch will be triggered, thereby sending an emergency unlocking signal.

[0034] like Figure 2 As shown in FIG. 1 , during the emergency unlocking process of the vehicle door, the two sets of steel wire ropes corresponding to the inner and outer doors are no longer tightened, that is, they are in a loosened state, and the unlocking reset rod 5 in the middle is pulled by the reset spring lock, driving the upper swing rod and the lower swing rod to rotate, and return to the initial state and as shown in FIG. Figure 1 When restoring, the unlocking reset rod 5 will touch the travel switch at different positions, thereby releasing the output of the emergency unlocking signal. After completing the emergency unlocking function and sending the signal remotely, the safety of the door system is improved.

[0035] Furthermore, the installation of the device is an integrated installation module, which is installed by bolts, and the positions of the internal parts are relatively fixed, without the need for major adjustments, and the installation is convenient and quick, ensuring the safety and reliability of vehicle operation.

[0036] Preferably, the tails of the upper swing arm 3 and the lower swing arm 4 are both provided with through holes for the wire rope 8 to pass through, the portion of the wire rope 8 extending out of the through hole is provided with a wire rope clamp 80, and the other end of the wire rope 8 is provided with a wire rope fixing column 81.

[0037] In the above structure, the wire rope clamp and the wire rope fixing column can be adjusted to achieve length adjustment of both ends of the wire rope 8 in a convenient and quick manner.

[0038] Preferably, the lower end surface of the upper rocker arm 3 and the upper end surface of the lower rocker arm 4 are provided with upper and lower corresponding arc-shaped notches 30, and the upper and lower ends of the unlocking and resetting rod 5 are provided with corresponding linkage protrusions 50, and the linkage protrusions 50 at the upper and lower ends can slide along the arc-shaped notches 30 on the upper and lower sides.

[0039] In the above structure, the upper and lower swing rods rotate to drive the unlocking and resetting rod 5 to swing in a linked manner through the linkage protrusion 50 and the arc-shaped notch 30, and the actual linkage protrusion 50 and the arc-shaped notch can be interchanged to achieve the same linkage effect.

[0040] Preferably, the lower end surface of the upper swing rod 3 and the upper end surface of the lower swing rod 4 are both provided with two sets of centrosymmetrical arc-shaped notches 30 , and the upper and lower ends of the unlocking and resetting rod 5 are provided with two sets of centrosymmetrical linkage protrusions 50 .

[0041] Furthermore, by adopting two sets of the above structures, it can be more stable during the linkage process, and the bearing capacity of each linkage protrusion 50 will be lower.

[0042] Preferably, the travel switch 7 includes a contact rod 70. A contact rod groove 51 is formed on one side of the unlocking and resetting rod 5. The end of the contact rod 70 abuts against the contact rod groove 51. When the unlocking and resetting rod 5 is rotated, the end of the contact rod 70 no longer abuts against the contact rod groove 70.

[0043] Preferably, a triggering notch 31 is formed on one side of the upper swing rod 3 and the lower swing rod 4.

[0044] During the triggering process of the above travel switch, the triggering form uses signal judgment on the rotation of the unlocking and resetting rod 5; and the triggering notch 31 formed on one side of the upper swing rod 3 or the lower swing rod 4 is used for triggering, which can provide triggering conditions for different situations, such as the inner door locking state or the outer door locking state.

[0045] Preferably, a resisting rod 10 is formed on the unlocking bracket 1 and abuts against the tails of the upper swing rod 3 and the lower swing rod 4. When the two steel wire ropes 8 are tightened, the tails of the upper swing rod 3 and the lower swing rod 4 no longer abut against the side wall of the resisting rod 10.

[0046] In the above structure, the resisting rod 10 limits the resetting stroke of the upper and lower swing rods, so that the unlocking device is within a reasonable resetting range, ensuring the reliability after installation.

[0047] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An emergency unlocking device for an orbital car door, characterized in that, It includes an unlocking bracket (1) and a rotating shaft (2) connected to the unlocking bracket (1). A rotatably connected upper swing rod (3), an unlocking and resetting rod (5) for driving the locking mechanism, and a lower swing rod (4) are sequentially sleeved on the rotating shaft (2). A reset spring (6) is connected to one side of the unlocking and resetting rod (5), and the other end of the reset spring (6) is fixed to the unlocking bracket (1). A travel switch (7) matching the unlocking and resetting rod (5) is arranged on the unlocking bracket (1). Steel wires (8) are fixed to the tails of both the upper swing rod (3) and the lower swing rod (4). When the two groups of steel wires (8) are tightened, the upper swing rod (3) or the lower swing rod (4) rotates along the rotating shaft (2), and drives the unlocking and resetting rod to rotate along the rotating shaft (2). The rotation of the unlocking and resetting rod (5) triggers the travel switch (7).

2. The emergency unlocking device for a rail vehicle door according to claim 1, characterized in that, Through holes for the steel wires (8) to penetrate are formed at the tails of both the upper swing rod (3) and the lower swing rod (4). A wire rope clip (80) is arranged on the part of the steel wire (8) extending out of the through hole. The other end of the steel wire (8) is provided with a wire rope fixing post (81).

3. The emergency unlocking device for an orbital car door according to claim 1, characterized in that, Arc-shaped notches (30) corresponding to each other up and down are formed on the lower end surface of the upper swing rod (3) and the upper end surface of the lower swing rod (4). Corresponding linkage protrusions (50) are arranged at the upper and lower ends of the unlocking and resetting rod (5), and the linkage protrusions (50) at the upper and lower ends can slide in the arc-shaped notches (30) on the upper and lower sides.

4. An emergency unlocking device for a rail vehicle door according to claim 3, characterized in that, Two groups of centrally symmetric arc-shaped notches (30) are formed on the lower end surface of the upper swing rod (3) and the upper end surface of the lower swing rod (4). Two groups of centrally symmetric linkage protrusions (50) are arranged at the upper and lower ends of the unlocking and resetting rod (5).

5. An emergency unlocking device for a rail vehicle door according to claim 1, characterized in that, The travel switch (7) includes a contact rod (70). A contact rod groove (51) is formed on one side of the unlocking and resetting rod (5). The end of the contact rod (70) abuts against the contact rod groove (51). When the unlocking and resetting rod (5) rotates, the end of the contact rod (70) no longer abuts against the contact rod groove (70).

6. The emergency unlocking device for a rail vehicle door according to claim 1 or 5, characterized in that, Trigger notches (31) are formed on one side of both the upper swing rod (3) and the lower swing rod (4).

7. The emergency unlocking device for a rail vehicle door according to claim 1, wherein A stop rod (10) abutting against the tails of the upper swing rod (3) and the lower swing rod (4) is formed on the unlocking bracket (1). When the two groups of steel wires (8) are tightened, the tails of the upper swing rod (3) and the lower swing rod (4) no longer abut against the side wall of the stop rod (10).

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