CN102444335B - Door locking system for single-shaft track traffic safety door - Google Patents

Abstract

The invention relates to a door locking system for a single-shaft track traffic safety door. The door locking system comprises a driving motor, a latch hook change gear, a limiting switch, a proximity switch, a door lock and a tension pulley, wherein the driving motor is arranged on a fixed door; the door lock and the tension pulley are arranged on the movable door; the driving motor, the door lock and the tension pulley are connected into a motion loop through a belt; the door lock is a single-shaft door lock, which comprises a lock body fixing seat, a main shaft, a butterfly-shaped limiting plate, a latch hook, a belt pulley, a belt joint buckling cover, an unlocking torsion spring, a locking torsion spring and a manual unlocking bracket; the main shaft is arranged on the lock body fixing seat; the butterfly-shaped limiting plate, the latch hook, the belt pulley and the belt joint buckling cover are sequentially connected to the main shaft; the unlocking torsion spring is arranged between the lock body fixing seat and the butterfly-shaped limiting plate; the locking torsion spring is arranged between the butterfly-shaped limiting plate and the latch hook; and the manual unlocking bracket is connected to the latch hook. The door lock is a single-shaft door lock, and a rotating component is connected by using a main shaft, so that the structure is simple, and the failure rate is lowered.

Description

The single-shaft variant door lock system for rail transit safety door

Technical field

The present invention relates to safety door lock, particularly a kind of single-shaft variant door lock system for rail transit safety door.

Background technology

Safety door lock is one of core component of rail transit safety door.The door lock of current track traffic safety door generally adopts electromagnetic lock and mechanical lock.

Electromagnetic lock utilizes magnet to drive the tapered end action, needs the signal of telecommunication to move.Shortcoming is that the magnet reception signal of telecommunication needs a period of time, and the magnet action also needs the time.Lock body action hysteresis for some time.Reliability requirement height to electromagnet.

The most complex structure of mechanical lock, bulky, and also drive disk assembly connection joint is many, and reliability is low.

Summary of the invention

Purpose of the present invention in order to overcome the defective that above-mentioned prior art exists, provides a kind of simple in structure, reliable single-shaft variant door lock system for rail transit safety door exactly.

To achieve these goals, the present invention has adopted following technical scheme: a kind of single-shaft variant door lock system for rail transit safety door, comprise the drive motors that is installed on the fixed gate, latch hook change gear, limit switch and near switch, and being installed in door lock and regulating wheel on the dodge gate, drive motors, door lock and regulating wheel connect into moving loop by belt;

Described door lock is the single-shaft variant door lock, comprises lock body holder, main shaft, butterfly type limiting plate, latch hook, belt pulley, belt lacings buckle closure, release torsion spring, torsion spring and manual unlocking support lock; The lock body holder is fixed on the dodge gate, and main shaft is installed on the lock body holder, and butterfly type limiting plate, latch hook, belt pulley and belt lacings buckle closure are linked in sequence on main shaft; The release torsion spring is arranged between lock body holder and the butterfly type limiting plate, and the one end is fixed on the lock body holder, and the other end is fixed on the butterfly type limiting plate; The torsion spring that locks is arranged between butterfly type limiting plate and the latch hook, and the one end is fixed on the butterfly type limiting plate, and the other end is fixed on the latch hook; The belt lacings buckle closure is connected on the belt pulley and with belt and is fixed on the belt pulley; The manual unlocking support is connected on the latch hook.

Described butterfly type limiting plate is fixedlyed connected with main shaft, and this butterfly type limiting plate comprises the butterfly type fin of two difference both sides stretching, extension to the left and right, forms upper limit groove and lower limit groove between two fins.

Described lock body holder is provided with a connecting ring, and connecting ring is provided with first positive stop lug boss, and the main body of described release torsion spring is sleeved on this connecting ring, and described main shaft is connected with connecting ring; First positive stop lug boss stretches in the upper limit groove of butterfly type limiting plate.

Described latch hook and main shaft flexibly connect, and the latch hook front end is provided with an inclined-plane, and the rear portion is connected with the manual unlocking support, and the centre is provided with second positive stop lug boss in the side towards butterfly type limiting plate, and second positive stop lug boss stretches in the lower limit groove of butterfly type limiting plate.

Described belt pulley is fixedlyed connected with main shaft.

The present invention makes it compared with prior art owing to adopted above technical scheme, has following advantage and characteristics:

1, simple in structure: as to integrate butterfly type limiting plate, latch hook, belt pulley, belt lacings buckle closure.Lock body is connected with a main shaft with butterfly type limiting plate, latch hook, belt pulley, belt lacings buckle closure.

2, reliability height: rotatable parts connect with a main shaft, and are simple in structure, and fault rate reduces.

Description of drawings

Fig. 1 is the overall structure schematic diagram of single-shaft variant door lock system for rail transit safety door of the present invention;

Fig. 2 is the structural representation of facing of the single-shaft variant door lock among the present invention;

Fig. 3 is the side-looking structural representation of the single-shaft variant door lock among the present invention;

Fig. 4, Fig. 5 are the decomposition texture schematic diagram of the single-shaft variant door lock among the present invention;

Fig. 6, Fig. 7, Fig. 8, Fig. 9 are the process of the closing the door schematic diagram of single-shaft variant door lock system for rail transit safety door of the present invention;

Figure 10, Figure 11, Figure 12, Figure 13 are the process of the opening the door schematic diagram of single-shaft variant door lock system for rail transit safety door of the present invention;

Figure 14, Figure 15 are the manual unlocking process schematic diagram of single-shaft variant door lock system for rail transit safety door of the present invention.

The specific embodiment

The present invention is described in detail below in conjunction with the drawings and specific embodiments.

Referring to Fig. 1, single-shaft variant door lock system for rail transit safety door of the present invention, comprise thedrive motors 1 that is installed on the fixed gate, latchhook change gear 2,limit switch 3 and nearswitch 4, and being installed in door lock 5 and regulatingwheel 6 on the dodge gate, drivemotors 1, door lock 5 and regulatingwheel 6 connect into moving loop by belt 7.

Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, door lock 5 among the present invention is the single-shaft variant door lock, compriseslock body holder 51,main shaft 52, butterflytype limiting plate 53,latch hook 54,belt pulley 55, beltlacings buckle closure 56,release torsion spring 57,torsion spring 58 andmanual unlocking support 59 lock.Lock body holder 51 is fixed on the dodge gate, andmain shaft 52 is installed on thelock body holder 51, and butterflytype limiting plate 53,latch hook 54,belt pulley 55 and beltlacings buckle closure 56 are linked in sequence onmain shaft 52;Release torsion spring 57 is arranged betweenlock body holder 51 and the butterflytype limiting plate 53, and the one end is fixed on thelock body holder 51, and the other end is fixed on the butterflytype limiting plate 53; Thetorsion spring 58 that locks is arranged between butterflytype limiting plate 53 and thelatch hook 54, and the one end is fixed on the butterflytype limiting plate 53, and the other end is fixed on thelatch hook 54; Beltlacings buckle closure 56 is connected on thebelt pulley 55 and with belt 7 and is fixed on the belt pulley;Manual unlocking support 59 is connected on thelatch hook 54.

Butterflytype limiting plate 53 among the present invention is fixedlyed connected withmain shaft 52, and this butterflytype limiting plate 53 comprises the butterfly type fin of two difference both sides stretching, extension to the left and right, formsupper limit groove 531 andlower limit groove 532 between two fins.

Lock body holder 51 among the present invention is provided with a connecting ring 511, and connecting ring is provided with first positivestop lug boss 512, and the main body ofrelease torsion spring 57 is sleeved on this connecting ring 511, andmain shaft 52 is connected with connecting ring; First positivestop lug boss 512 stretches in theupper limit groove 531 of butterflytype limiting plate 53.

Latchhook 54 among the present invention flexibly connects withmain shaft 52, the latch hook front end is provided with an inclined-plane 541, the rear portion is connected withmanual unlocking support 59, and the centre is provided with second positive stop lug boss, 542, the second positivestop lug boss 542 in the side towards butterfly type limiting plate and stretches in thelower limit groove 532 of butterfly type limiting plate.

Belt pulley 55 among the present invention is fixedlyed connected withmain shaft 52.

But the operating principle accompanying drawings of single-shaft variant door lock system for rail transit safety door of the present invention is as follows:

Door opening state such as Fig. 1, Fig. 2, shown in Figure 3.Main shaft 52 is under the effect ofrelease torsion spring 57, by first positive stop lug boss, 512 location on the lock body holder.Latchhook 54 keeps level undertorsion spring 58 effects that lock.

The process of closing the door such as Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, close gate signal and makemotor 1 action,driving belt pulley 55 by belt 7 moves, thereby driving dodge gate moves, when the inclined-plane 541 that moves tolatch hook 54 when latch hook changegear 2 on the fixed gate contacts, latchhook change gear 2 promoteslatch hook 54 and rotates 18 degree, as shown in Figure 7.After dodge gate put in place,latch hook 54 was under the effect of thetorsion spring 58 that locks, and backward rotation 18 degree are returned to level again, form locking with latchhook change gear 2, as Fig. 8, shown in Figure 9, after the latch hook locking, obtain locking signal nearswitch 4.

The process of opening the door such as Figure 10, Figure 11, Figure 12, shown in Figure 13, under the dodge gate lock-out state, enabling signal makesmotor 1 action.The driven by motor belt, makebelt pulley 55 rotate 18 degree, thereby the dish-shaped limiting plate that drivesmain shaft 52 and be connected withmain shaft 53 rotates 18 degree, second positivestop lug boss 542 thatdish limiting plate 53 drives again on thelatch hook 54 rotates 18 degree, latch hook is broken away from from latchhook change gear 2, realize release, as Figure 10, shown in Figure 11.Afterlatch hook 54 broke away from release with latchhook change gear 2, dodge gate was driven by belt and opens, and butterflytype limiting plate 53 resets under the effect ofrelease torsion spring 57, and latch hook rotates 18 degree, is returned to level, as shown in Figure 12 and Figure 13.

Manual unlocking process such as Figure 14, shown in Figure 15, manually handle pullingmanual unlocking support 59 rotates, and driveslatch hook 54 action releases, and signal is obtained inlimit switch 3 actions simultaneously.

Claims (5)

1. single-shaft variant door lock system for rail transit safety door, comprise the drive motors that is installed on the fixed gate, latch hook change gear, limit switch and near switch, and being installed in door lock and regulating wheel on the dodge gate, drive motors, door lock and regulating wheel connect into moving loop by belt; It is characterized in that:

Described door lock is the single-shaft variant door lock, comprises lock body holder, main shaft, butterfly type limiting plate, latch hook, belt pulley, belt lacings buckle closure, release torsion spring, torsion spring and manual unlocking support lock; The lock body holder is fixed on the dodge gate, and main shaft is installed on the lock body holder, and butterfly type limiting plate, latch hook, belt pulley and belt lacings buckle closure are linked in sequence on main shaft; The release torsion spring is arranged between lock body holder and the butterfly type limiting plate, and the one end is fixed on the lock body holder, and the other end is fixed on the butterfly type limiting plate; The torsion spring that locks is arranged between butterfly type limiting plate and the latch hook, and the one end is fixed on the butterfly type limiting plate, and the other end is fixed on the latch hook; The belt lacings buckle closure is connected on the belt pulley and with belt and is fixed on the belt pulley; The manual unlocking support is connected on the latch hook.

2. single-shaft variant door lock system for rail transit safety door as claimed in claim 1, it is characterized in that: described butterfly type limiting plate is fixedlyed connected with main shaft, this butterfly type limiting plate comprises the butterfly type fin of two difference both sides stretching, extension to the left and right, forms upper limit groove and lower limit groove between two fins.

3. single-shaft variant door lock system for rail transit safety door as claimed in claim 1 or 2, it is characterized in that: described lock body holder is provided with a connecting ring, connecting ring is provided with first positive stop lug boss, the main body of described release torsion spring is sleeved on this connecting ring, and described main shaft is connected with connecting ring; First positive stop lug boss stretches in the upper limit groove of butterfly type limiting plate.

4. single-shaft variant door lock system for rail transit safety door as claimed in claim 1 or 2, it is characterized in that, described latch hook and main shaft flexibly connect, the latch hook front end is provided with an inclined-plane, the rear portion is connected with the manual unlocking support, the centre is provided with second positive stop lug boss in the side towards butterfly type limiting plate, and second positive stop lug boss stretches in the lower limit groove of butterfly type limiting plate.

5. single-shaft variant door lock system for rail transit safety door according to claim 1 is characterized in that: described belt pulley is fixedlyed connected with main shaft.

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