RU2124106C1 - Locking device of turnstile - Google Patents

Abstract

FIELD: mechanical engineering. SUBSTANCE: this relates to devices intended for blocking rotors of turnstiles used for preventing unauthorized access into buildings, premises and other guarded objects. Locking device of turnstile has controlled blocking members in the form of pins which can prevent movement of blockable members in direction which is perpendicular to axes of pins. Blockable members are made in the form of spring-biased turning levers which interact with rotor of turnstile over its periphery. Pins are mounted on ends of spring-biased rocker. Turning levers can have recesses in their ends which form socket configurated as semicircle. Component of turnstile rotor which interact with spring-biased turning levers can be made in the form of semicircle. Device can be provided with protective-supporting shackles. Turnstile with aforesaid embodiment of locking device is simple in service, very reliable in prescribed function and highly efficient. EFFECT: higher efficiency. 2 cl, 1 dwg

Description

 The invention relates to the field of construction, and in particular to devices for blocking turnstiles of turntables designed to prevent unauthorized access to buildings, premises and other protected objects.

 Known adjustable turnstile according to US patent N 3795075, class. E 06 B 11/08, published in 1974. The rotating part of the turnstile can rotate in one of two directions. A ratchet wheel is mounted on the shaft of the turntable, controlled by two dogs with separate drives. One of the dogs facilitates rotation in the direction that the other dog does not allow to rotate, which allows rotation in the other direction. Rotating the turntable in one direction or another is carried out at a given angle. Ratchet dogs, performing not only the function of elements that control the direction of the passage, but also the function of the latches when the rotary part of the device stops in a certain position, have to extinguish the energy developed by the turntable. The resulting shock loads on the mating parts are exacerbated by the fact that the forces are perceived by the dogs on a much smaller shoulder than the shoulder, to which the forces exerting loads are applied. The destructive effects of shock loads on the parts of the ratchet mechanism significantly reduce its service life.

 Closest to the alleged invention is a turnstile with a lock in one direction, forming a passage in the fence, according to the application of France N 2396863, cl. E 06 B 11/08, published in 1979. The locking members of the device are located between the fixed frame and the turnstile turntable. Automatically moving to the locked position, they are unlocked by electrical or mechanical control. The blocked bodies have a disk equipped with locking grooves, which is mounted directly on the shaft of the turntable. Rotating, the disk through the grooves interacts with two blocking bodies made in the form of fingers. The grooves are located around the perimeter of the disk. These bodies provide the ability to lock in opposite directions of rotation. One of them is optionally set to the unlock position.

 The disadvantage of the prototype is the need for a sufficiently large force action of the locking bodies on the rotary part in its locked position, since the locked disk is mounted directly on the shaft of the turntable, and the shoulder of the application of external force is located on the periphery. The design does not exclude the possibility of jamming the turntable with a permitted passage.

 The objective of the invention is the creation of a locking device that can withstand large force influences from the outside without significant force counteraction to the turntable and excluding hard shock loads, which increases the reliability of the device and reduces the wear of interacting parts.

 The problem is solved as follows.

 In the turnstile locking device located between the fixed frame and the pinwheel of the latter and containing controlled locking bodies in the form of fingers having the ability to interfere with the movement of blocked bodies in the direction perpendicular to the axes of the fingers, the locked bodies are made in the form of spring-loaded swing arms interacting with ends located one against the other , with a turntable on its periphery, and a rocker with spring-loaded ends on which fingers are planted is introduced into the device. The spring-loaded pivoting levers have recesses at the ends that form a nest in the form of a semicircle, and the pinwheel element interacting with the levers has the shape of this semicircle. In addition, the device is characterized in that it is equipped with protective support brackets in the places of interaction of the blocking and blocked organs.

 Unlike analogs, the pinwheel is locked by the proposed locking device at its point farthest from the axis of rotation, at which the force transmitted from the outside via the pinwheel arm to the elements of the locking device is the smallest. Due to this, no requirements are imposed on the elements of the locking device as to those bearing a large power load, and the newly introduced ones are of the same type of flat parts such as levers and rocker. Despite the fact that these parts have long shoulders, due to the opposite direction of the ends of the levers interacting with the turntable at one point, the device is represented by a rather compact design. Due to the fact that the pinwheel is locked at the point farthest from its axis of rotation, and the interlocking and locking bodies with their hinged fasteners and return springs are interlocked, easy control of both the locking mechanism and the pinwheel is ensured, and its retention from unauthorized rotation is guaranteed , increases the durability of the interacting parts. A socket of the simplest configuration formed by the opposite ends of the levers, covering the turntable element of a corresponding shape, provides a clear fixation of the turntable with a locking device and contributes to the reliability of its locking. Protective support brackets are used to block access to unauthorized persons at the place of interaction between the locking and blocked organs, restrict the movement of these organs in mutually perpendicular directions, and prevent leverage from sagging if they are quite long.

 Comparison of the proposed technical solution not only with the prototype, but also with other technical solutions in this area and related areas did not reveal a device containing three pivotally mounted spring-loaded movable objects, one of which has the ability to rotate reverse movement in a plane perpendicular to the plane of the rotary reverse moving two other objects, while the first moving object has the ability to prevent the movement of one or another of a pair of other objects , each of which can, in turn, allow or prohibit the movement in their plane of movement of any fourth reversibly moving object that is able to interact with this pair compactly at one point.

 The invention is illustrated in the drawing.

 The turnstile locking device is placed between the fixed frame 1 of the latter and its turntable 2 / in the drawing, a blade or one of the blades of the turntable with a shaft in the support is highlighted /. The device contains controlled locking bodies in the form of fingers 3 installed in the holes of the frame 1 and pivotally connected to the spring-loaded ends of the beam 4 mounted on the axis 5. The locking bodies are made in the form of spring-loaded levers 6 installed on the axles 7 and interacting in the initial position with the ends located one against the other, with a spinner at one point on its periphery. The opposite ends of the levers 6 have recesses at the ends and form a semicircular nest in the form of a semicircle, covering the round tube of the turntable 2, i.e. the pinwheel element interacting with levers 6 has the shape of this semicircle. The fingers 3 of the rocker arm 4 under the fixed frame 1 / which is the ceiling for full height turnstiles / are covered with brackets 8 that do not allow access to them, which, in addition, can serve as supports for long-arm levers and restrict the movement of fingers and levers in their work.

 The device operates as follows.

 With permitted rotation in both directions of the turntable 2, the levers 6 are pressed by the ends to the turntable by means of springs 9, and the beam 4 is held in equilibrium by the springs 10. The turntable can be easily turned in one direction or another from the direction A depending on which of levers 6 will be diverted from it at the point of interaction by pulling force B / for example, by means of an electromagnet / to the stop in one of the protective support brackets 3. After releasing force B, the corresponding lever under the action of spring 9 will return to its original position the position and the next blade / or the same, if it is only one / turntables tangentially to the spring-loaded pivoting levers 6 softly / the springs at the same time serve as a damper / leads into the socket formed by the ends of the levers.

 With unauthorized rotation of the turntable 2 in any of the directions A, one of the arms of the rocker arm 4 is lowered by the force B / for example, by the force of the electromagnet / to the stop with the corresponding finger 3 into the bracket 8, blocking the desired lever 6 together with the turntable. The beam will return to its original position under the action of the springs 10 after removing the force.

 From the description of the design of the proposed locking device, it follows that it is assembled from typical spring-loaded elements with axles and does not require a large force action by blocking means on the blockable part, it is simple to manufacture and reliable in operation. The turnstile with such a locking mechanism is easy to use, increases the reliability of preventing unauthorized access to the guarded object, and facilitates the service conditions of the personnel of the checkpoint. The considered technical solution of the locking device can be used not only in relation to turnstiles, but also in other devices and mechanisms with a system rotating in start-stop mode.

Claims (3)

 1. The turnstile locking device located between the fixed frame and the pinwheel of the latter and containing controlled locking bodies in the form of fingers having the ability to prevent the locking bodies from moving in a direction perpendicular to the axes of the fingers, characterized in that the locking bodies are made in the form of spring-loaded swing arms interacting with the ends , located one opposite the other, with a spinner on its periphery, and a rocker with spring-loaded ends on which fingers are planted is introduced into the device.  2. The device according to claim 1, characterized in that the spring-loaded pivoting levers have recesses at the ends that form a nest in the form of a semicircle, and the pinwheel element interacting with the levers has the shape of this semicircle.  3. The device according to claim 1, characterized in that it is equipped with protective support brackets in the places of interaction of the blocking and blocked organs.