RU220579U1 - VERTICAL LIFT GATES - Google Patents

Abstract

The utility model relates to devices for closing openings in fences. Vertical lift gates contain a leaf, a frame with side vertical posts in which guides for rollers are made, and counterweights connected to the gate leaf through a cable block system, as well as a mechanism for lowering and raising the gate leaf with limit switches for automatically controlling the raising and lowering of the gate leaf when remote activation of the control system, in which the mechanism for lowering and raising the gate leaf is enclosed in an underground chamber located under the gate leaf, which is in a position covering the opening in the fence; the door leaf is rigidly mounted on a monolithic metal base, which is an I-beam with smooth surfaces up and down; side vertical posts, in which guides for the rollers are made, are fixedly mounted at the ends of the monolithic metal base; the drive mechanism for lowering and raising the door leaf is rigidly mounted on a monolithic metal base, and the final gear of the drive gear is engaged with a vertical rack connected at its ends to the floor and ceiling of the underground chamber; two counterweights hung in front of the gate leaf, and two counterweights hung on the back side of the gate leaf, through blocks installed on the ceiling of the underground chamber, are connected with cables to a monolithic metal base, and each counterweight is made in the form of a profiled pipe of rectangular section, the ends of which connected by a cable to one of the blocks installed on the ceiling of the underground chamber, and the gate leaf consists of pickets made in the form of a profiled pipe of rectangular cross-section, the lower ends of which are rigidly mounted on a monolithic metal base; to one of the side surfaces of the I-beam, which is a monolithic metal base, brackets are welded at its ends and in the middle, through which a shaft is passed, supported by bearings mounted in the brackets; At the ends of the shaft, gears are installed, which mesh with vertical gear racks, attached at their ends to the floor and ceiling of the underground chamber; the fence pickets are passed through rectangular holes in the ceiling of the underground chamber, corresponding in shape to the outer contour of the cross-section of the pickets, and at the top of the ceiling of the underground chamber, on four sides of each picket, rollers are installed on racks with the ability to rotate around the axis of the rack, touching with their outer surface the side surface of the pickets; the space above the ceiling of the underground chamber, in which the racks with rollers are installed, is limited by the side walls that form the box, and is closed on top by a lid located at ground level, in which holes are also cut for the pickets; The underground chamber, bounded by the floor, ceiling and side walls, is a metal box to which an upper box with a lid is welded, enclosing racks with rollers. The device is reliable in operation, thanks to the use of a rack and pinion mechanism in the mechanism for raising and lowering the door leaf. Many parts can be made of profiled metal.

Description

The utility model relates to devices for closing openings in fences. Typically, swing or sliding gates, sometimes with remote control, are used to close openings in fences. Lifting gates are used to close openings in buildings, most often in garages. Various designs of overhead gates are known, the main elements of which are a frame, sometimes with side vertical posts in which guides are made, a gate leaf, sometimes with guide rollers, an automatic control unit for raising and lowering the gate leaf when the control system is turned on remotely, a limit switch for limiting the rise and lowering the door leaf, counterweights for smooth movement of the door leaf [1, 2, 3, 4] In all these devices there is a problem of reliability of protection against self-lowering of the door leaf.

A useful model of a vertical lift gate is known [5], containing a gate leaf, a frame with side vertical posts containing guides for rollers, and counterweights connected to the gate leaf through a cable block system, as well as a mechanism for lowering and raising the gate leaf with limit switches automatic control of raising and lowering the door leaf when the control system is turned on remotely, in which

the mechanism for lowering and raising the gate leaf is enclosed in an underground chamber located under the gate leaf, which is in a position covering the opening in the fence;

the door leaf is rigidly mounted on a monolithic metal base, on which a horizontal guide for rollers, the carriages of which are hinged on the rods, is rigidly fixed on the reverse side;

the reverse end of the rods is fixedly fixed on the lower horizontal guide, mounted in the floor of the underground chamber in such a way that they form a crosshair, in the center of which there is an axis mounted, on which ball bearings are installed for ease of rotation of the rods;

the gate frame consists of two vertical guides for rollers, fixed on the sides of the gate leaf in the walls of the underground chamber, and the roller carriages are fixedly mounted on vertical side posts, rigidly connected to the ends of the monolithic metal base;

the drive mechanism for lowering and raising the door leaf is rigidly mounted on a monolithic metal base, and the final gear of the drive gearbox is meshed with a vertical rack connected at its ends through damper springs to the floor and ceiling of the underground chamber;

two counterweights hung in front of the gate leaf, and two counterweights hung on the back side of the gate leaf, through blocks installed on the ceiling of the underground chamber, are connected with cables to a monolithic metal base, and each counterweight is made in the form of a profiled pipe of rectangular section, the ends of which connected by a cable to one of the blocks installed on the ceiling of the underground chamber.

The objective of the utility model was to increase the reliability of the mechanism for raising and lowering the door leaf and simplify the design of this mechanism by eliminating the rollers located on the upper and lower horizontal guides and the associated rods forming movable crosshairs, and replacing this mechanism with a rack and pinion one. Unreliable operation of the rollers in the device [5] occurs due to their clogging and flooding with water penetrating through the gaps in the upper part of the device.

The problem is solved by the fact that in a utility model containing a gate leaf, a frame with side vertical posts in which guides for rollers are made, and counterweights connected to the gate leaf through a cable block system, as well as a mechanism for lowering and raising the gate leaf with automatic control limit switches raising and lowering the gate leaf when remotely switching on the control system, in which the mechanism for lowering and raising the gate leaf is enclosed in an underground chamber located under the gate leaf, which is in a position covering the opening in the fence; the gate leaf is rigidly mounted on a monolithic metal base, which is an I-beam, located with smooth surfaces up and down, the drive of the mechanism for lowering and raising the gate leaf is rigidly connected to the monolithic metal base, and the final gear of the drive gear is meshed with a vertical toothed rack attached by its ends to the floor and ceiling of the underground chamber; two counterweights hung in front of the gate leaf, and two counterweights hung on the back side of the gate leaf, through blocks installed on the ceiling of the underground chamber, are connected with cables to a monolithic metal base, and each counterweight is made in the form of a profiled pipe of rectangular section, the ends of which connected by a cable to one of the blocks installed on the ceiling of the underground chamber.

The door leaf consists of pickets made in the form of a profiled pipe of rectangular cross-section, the lower ends of which are rigidly mounted on a monolithic metal base;

to one of the side surfaces of the I-beam, which is a monolithic metal base, brackets are welded at its ends and in the middle, through which a shaft is passed, supported by bearings mounted in the brackets;

At the ends of the shaft, gears are installed, which mesh with vertical gear racks, attached at their ends to the floor and ceiling of the underground chamber;

the fence pickets are passed through rectangular holes in the ceiling of the underground chamber, corresponding in shape to the outer contour of the cross-section of the pickets, and at the top of the ceiling of the underground chamber, on four sides of each picket, rollers are installed on racks with the ability to rotate around the axis of the rack, touching with their outer surface the side surface of the pickets;

the space above the ceiling of the underground chamber, in which the racks with rollers are installed, is limited by the side walls that form the box, and is closed on top by a lid located at ground level, in which holes are also cut for the pickets;

The underground chamber, bounded by the floor, ceiling and side walls, is a metal box to which an upper box with a lid is welded, enclosing racks with rollers.

The proposed design is presented in the drawings, where:

Fig. 1 is a front view of the device, with the gate shown in the raised state when it covers the opening in the fence;

Figure 2 is a plan view of the device, section along A-A of Figure 1;

Fig. 3 - side view of the device, section along BB of Fig. 1;

Fig. 4 - view according to B-B of Fig. 1;

Fig. 5 - view according to GG of Fig. 4 (enlarged);

Fig. 6 - section along D-D of Fig. 2 (enlarged);

Fig. 7 - view E of Fig.6 (enlarged);

Fig. 8 - view G of Fig.1 (enlarged).

The door leaf, consisting of pickets 1, is mounted rigidly on a monolithic metal base 2, which is a T-beam steel beam with smooth surfaces up and down. The mechanism for lowering and raising the gate leaf is contained in an underground chamber located under the gate leaf, which is in a position covering the opening in the fence, between the ceiling 3 and the floor 4, and limited by the side walls 5, 6, 7, 8.

To one of the side surfaces of the I-beam, which is a monolithic metal base 2, brackets 9 are welded at its ends and in the middle, through which a shaft 10 is passed, supported by bearings mounted in the brackets 9. Toothed gears 11 are installed at both ends of the shaft 10, being in engagement with vertical gear racks 12, attached at their ends to the floor 4 and ceiling 3 of the underground chamber;

Electric drive 13, containing a motor with a gearbox and an electronic control unit 14, is rigidly connected to a monolithic metal base 2 by means of a bracket 15 and an angle 16. The final gear 17 of the gearbox is meshed with one of the vertical racks 12, the ends of which are attached to the ceiling 3 and the floor 4 underground chambers.

Both gear racks 12 on the side opposite to the one equipped with gear cutting are designed as guides for rollers 18, the carriages 19 of which are connected through corresponding brackets 15 and 20 and an angle 16 with the ends of the monolithic metal base 2. The rollers 18 have a design similar to the rollers for vertical movement of the monolithic metal base along vertical guides in the design described in the source [5].

To ensure uniform movement of the gate leaf, counterweights 21 are installed: two in front of the gate leaf and two on the back side of the gate leaf. The counterweights are secured to cables 22, which are thrown over blocks 23 and secured at their second ends to a monolithic base 2. Each counterweight is made in the form of a profiled pipe of rectangular cross-section.

The pickets 1 are welded to rectangular metal platforms 24, each equipped with four holes through which studs 25 are passed, welded to the upper surface of the monolithic metal base 2 (Fig. 8). The platforms 24 are fixed to the studs 25 using washers 26 and nuts 27 and thus allow some adjusting the installation of picket fences 1.

Pickets 1 are passed through rectangular holes in the ceiling 3 of the underground chamber, corresponding in shape to the outer contour of the cross-section of the pickets, and through holes of the same shape in the cover 28. At the top of the ceiling of the underground chamber, on four sides of each picket, rubber rollers 30 are mounted on racks 29 with the possibility of rotation around the axis 31 of the rack, and the rollers touch their outer surface to the side surface of the pickets (Fig. 4, 5). The racks 29 are reinforced with the bases at the top of the ceiling of the underground chamber using screws 32. The space above the ceiling of the underground chamber, in which the racks 29 with rollers 30 are installed, is limited side walls 33 forming a box, and closed on top by a lid 28 located at ground level. The underground chamber, limited by the floor 4, ceiling 3 and side walls 5, 6, 7, 8, is a metal box to which walls 33 are welded, forming a box with a lid 28 enclosing racks 29 with rollers 30.

The device works as follows.

The electronic control unit 14 is turned on using the remote control. The electric drive 13 and the gearbox begin to operate, the final gear 17 of which, meshed with the vertical rack 12, begins to roll down along the rack 12, resulting in a monolithic metal base 2 rigidly connected to the electric drive 13 , also begins to move down. Together with the base 2, the shaft 10 moves down, rigidly connected to it using brackets 9 welded to it. The gears 11 also begin to roll along the racks 12, which contributes to a more stable and uniform movement of the base 2 in the vertical direction. Together with the base 2, the associated brackets 15 and 20 and the angle 16 move, with which the carriages 19 of the rollers 18 are connected, as a result of which the rollers 18 move along the guides made on the rear surface of the gear racks 12. The movement of the rollers 18 along the vertical guides facilitates smooth lowering gate leaves. Counterweights 21, suspended on cables 22, thrown over blocks 23 and fixed to the base 2, rise upward and also contribute to the smooth and stable movement of the gate leaf.

The door leaf, mounted on a monolithic metal base 2, goes down with it until the limit switches operate. In the current model of vertical lifting gates, the gate leaf consisted of 30 pickets made of a profiled pipe having a rectangular cross-section. To raise the gate leaf, the electronic control unit 14 is turned on again using the remote control, and the gate leaf lifting program begins to operate. The electric drive 13 rotates in the opposite direction, the final gear 17 rolls upward along the vertical rack 12, the guides for the rollers 18 rise upward along with the monolithic metal base 2 until the limit switches operate. The counterweights 21 are lowered down. Rubber rollers 30, mounted on racks 29 above the ceiling of the underground chamber, when the pickets 1 move vertically down and up, rotate on the axes 31 of the racks and are pressed with the outer surface against the edges of the pickets, which contributes to a stable vertical position of the pickets as they move.

Many mechanical parts of the device can be made of profiled metal: the base 2 - from a steel I-beam, the counterweights 21 - from a profiled pipe of square or rectangular cross-section, the gate leaf - from a metal picket fence. For rollers 30, you can use wheels from a trolley bag.

The device operates reliably. Due to the fact that the entire device is enclosed in an underground chamber, the possibility of the door leaf self-lowering on people and objects located on the surface in the area where the gate is located is eliminated.

Analogues:

1. 24492 U1, RU, 2002

2. 8725 U1, RU, 1998

3. 2034125 C1, RU, 1992

4. 2001224 C1, RU, 1992

5. 12154 U1, BY, 2019

Claims (1)

Vertical lift gates containing a gate leaf, a frame with vertical side posts containing guides for rollers, and counterweights connected to the gate leaf through a cable block system, as well as a mechanism for lowering and raising the gate leaf with limit switches for automatic control of raising and lowering the leaf gates with remote activation of the control system, in which the mechanism for lowering and raising the gate leaf is enclosed in an underground chamber located under the gate leaf, which is in a position covering the opening in the fence; the door leaf is rigidly mounted on a monolithic metal base, which is an I-beam with smooth surfaces up and down; side vertical posts, in which guides for the rollers are made, are fixedly mounted at the ends of the monolithic metal base; the drive mechanism for lowering and raising the door leaf is rigidly mounted on a monolithic metal base, and the final gear of the drive gear is engaged with a vertical rack connected at its ends to the floor and ceiling of the underground chamber; two counterweights hung in front of the gate leaf, and two counterweights hung on the back side of the gate leaf, through blocks installed on the ceiling of the underground chamber, are connected with cables to a monolithic metal base, and each counterweight is made in the form of a profiled pipe of rectangular section, the ends of which connected by a cable to one of the blocks installed on the ceiling of the underground chamber, characterized in that the gate leaf consists of pickets made in the form of a profiled pipe of rectangular cross-section, the lower ends of which are rigidly mounted on a monolithic metal base; to one of the side surfaces of the I-beam, which is a monolithic metal base, brackets are welded at its ends and in the middle, through which a shaft is passed, supported by bearings mounted in the brackets; At the ends of the shaft, gears are installed, which mesh with vertical gear racks, attached at their ends to the floor and ceiling of the underground chamber; the fence pickets are passed through rectangular holes in the ceiling of the underground chamber, corresponding in shape to the outer contour of the cross-section of the pickets, and at the top of the ceiling of the underground chamber, on four sides of each picket, rollers are installed on racks with the ability to rotate around the axis of the rack, touching with their outer surface the side surface of the pickets; the space above the ceiling of the underground chamber, in which the racks with rollers are installed, is limited by the side walls that form the box, and is closed on top by a lid located at ground level, in which holes are also cut for the pickets; The underground chamber, bounded by the floor, ceiling and side walls, is a metal box to which an upper box with a lid is welded, enclosing racks with rollers.