CN218150682U - Trackless folding screen door - Google Patents

Abstract

The utility model discloses a folding screen door of trolley-bus relates to screen door technical field, including door frame and screen door, the screen door includes first stand and second stand, the top of first stand is equipped with first tow chain, the bottom of first stand is equipped with the second tow chain, be equipped with the spout that can supply first tow chain and second tow chain slip business turn over on the second stand, detachable is connected with folding gauze between first stand and the second stand, still including being used for pulling first tow chain, the rope traction assembly of synchronous business turn over of second tow chain in the spout that corresponds, the rope traction assembly includes two first leading wheels and connects the closed loop rope between two first leading wheels, still include first haulage rope, the one end rigid coupling of first haulage rope is in first stand, the other end of first haulage rope is connected to first tow chain or second tow chain after the diversion of second leading wheel, make first tow chain and second tow chain pass through the synchronous business turn over of same root haulage rope in corresponding spout.

Description

Trackless folding screen door

Technical Field

The utility model relates to a screen door technical field, in particular to folding screen door of trolley-bus.

Background

The effect of screen door is under the circumstances of guaranteeing indoor outer circulation of air, it is indoor to prevent insects such as mosquito and fly to get into, at present, the rail screen door that has is used mostly in the family, rail has great height at the bottom of this kind of screen door, during the use, very easily trip old man and child, current trackless screen door, the motion of the chain group of upper and lower two parts uses two traction structure to pull, this kind of traction mode causes easily that the motion of the chain group of upper and lower two departments is asynchronous, very easily take place the screen door and block when opening, the problem of slope, consequently need a synchronous trackless screen door of the motion of the chain group of upper and lower two departments urgent.

Disclosure of Invention

To above defect, the utility model aims at providing a folding screen door of trolley-bus aims at solving among the prior art screen door and easily blocks when opening and pause, the problem of easy slope.

In order to solve the technical problem, the technical scheme of the utility model is that:

a trackless folding screen door comprises a door frame and a screen door arranged on the door frame, wherein the screen door comprises a first upright post and a second upright post, a first drag chain is arranged at the top end of the first upright post, a second drag chain is arranged at the bottom end of the first upright post, a sliding groove for the first drag chain and the second drag chain to slide in and out is formed in the second upright post, and a folding screen net is detachably connected between the first upright post and the second upright post;

the rope traction assembly is used for dragging the first drag chain and the second drag chain to synchronously enter and exit in the corresponding sliding grooves, and comprises two first guide wheels and a closed-loop rope connected between the two first guide wheels;

the device is characterized by further comprising a first traction rope, one end of the first traction rope is fixedly connected to the first upright post, and the other end of the first traction rope is connected to the first drag chain or the second drag chain after being turned by the second guide wheel.

Preferably, first tow chain, second tow chain are formed by connecting a plurality of chain, and the chain includes inner link plate, outer link plate, is equipped with the arc wall on the outer link plate, is equipped with the first arch that can swing in the arc wall on the inner link plate.

Preferably, the top end of the second upright post is provided with a first guide block for guiding the first drag chain to move towards the chute, and the bottom end of the second upright post is provided with a second guide block for guiding the second drag chain to move towards the chute.

Preferably, a clamping block is arranged on the door frame, a second protrusion is arranged on the clamping block, and a clamping groove matched with the second protrusion is arranged on the first upright post.

Preferably, the second upright post is provided with a tensioning wheel with adjustable position.

Preferably, the bottom end of the second guide block is provided with a roller.

Preferably, wool tops are arranged on the side portions of the first guide block and the second guide block.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

because the trackless folding screen door of the utility model comprises a door frame and a screen door arranged on the door frame, the screen door comprises a first upright post and a second upright post, a first drag chain is arranged at the top end of the first upright post, a second drag chain is arranged at the bottom end of the first upright post, a chute for the first drag chain and the second drag chain to slide in and out is arranged on the second upright post, and a folding screen net is detachably connected between the first upright post and the second upright post;

the rope traction assembly is used for dragging the first drag chain and the second drag chain to synchronously enter and exit from the corresponding sliding grooves and comprises two first guide wheels and a closed-loop rope connected between the two first guide wheels;

still include first haulage rope, the one end rigid coupling of first haulage rope is connected to first stand, and the other end of first haulage rope is connected to first tow chain or second tow chain after the diversion of second leading wheel for first tow chain and second tow chain pass through the synchronous business turn over of same haulage rope in the spout that corresponds, avoid the motion of first tow chain and second tow chain asynchronous, and the card when avoiding the screen door to open is pause, the slope, improves the life of screen door.

Because first tow chain, second tow chain are formed by connecting a plurality of chain, and the chain includes inner link plate, outer link plate, is equipped with the arc wall on the outer link plate, is equipped with on the inner link plate to swing first arch in the arc wall for the swing of chain obtains spacingly, avoids the chain swing excessive, makes the removal of screen door more stable.

Because the door frame is provided with the clamping block, the clamping block is provided with the second bulge, and the first upright post is provided with the clamping groove matched with the second bulge, the screen door can be clamped on the door frame.

Because be equipped with the take-up pulley of position adjustable on the second stand for when the closed loop rope is not hard up, can carry out the tensioning to the closed loop rope through the position of adjusting the take-up pulley, reduce manpower and materials, improve the life of screen door, practice thrift the cost.

Because the bottom of second guide block is equipped with the gyro wheel for the removal of screen door is simple and convenient, reduces the manpower, prevents colliding with of guide block.

Because the lateral part of first guide block, second guide block all is equipped with the wool top for the laminating of screen door and door frame is inseparabler, and plays the cushioning effect, improves the life of screen door.

To sum up, the utility model provides an easily block when the screen door is opened among the prior art and pause, the technical problem of easy slope, the utility model discloses make first tow chain and second tow chain through the same root haulage rope along the equidirectional motion, avoid the motion of first tow chain and second tow chain asynchronous, card when avoiding the screen door to open pause, slope for the swing of chain obtains spacingly, avoids the chain swing excessive, makes the removal of screen door more stable, improves the life of screen door.

Drawings

FIG. 1 is a schematic structural view of the trackless folding screen door of the present invention;

FIG. 2 is a schematic view of the construction of the screen door of FIG. 1;

FIG. 3 is a schematic illustration of the connection of a first pull-cord, a second pull-cord, a closed loop rope;

FIG. 4 is a schematic structural view of the second tow chain of FIG. 2;

fig. 5 is a structural view of the cartridge of fig. 1;

fig. 6 is a structural sectional view of the latch of fig. 1;

fig. 7 is a structural sectional view of the tension pulley of fig. 2.

In the figure, 1-door frame, 10-clamping block, 100-second protrusion, 2-screen door, 20-first upright post, 200-clamping groove, 21-second upright post, 210-sliding groove, 211-first guide wheel, 212-second guide wheel, 213-tensioning wheel, 214-rotating shaft, 215-locking nut, 216-roller, 217-wool top, 22-first drag chain, 23-second drag chain, 230-chain, 231-inner chain plate, 232-outer chain plate, 233-arc groove, 234-first protrusion, 24-folding screen net, 240-first drag rope, 241-first sliding block, 242-second drag rope, 243-closed loop rope, 25-first guide block and 26-second guide block.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The position that involves in this specification all uses the utility model relates to a position of folding screen door of trolley-bus when normal work is the standard, does not restrict the position when its storage and transportation, only represents relative position relation, does not represent absolute position relation.

As shown in fig. 1, fig. 2 and fig. 3 together, the trackless folding screen door comprises a door frame 1 and a screen door 2 installed on the door frame 1, the screen door 2 comprises a first upright post 20 and a second upright post 21, a first drag chain 22 is arranged at the top end of the first upright post 20, a second drag chain 23 is arranged at the bottom end of the first upright post 20, a sliding groove 210 for the first drag chain 22 and the second drag chain 23 to slide in and out is arranged on the second upright post 21, a folding screen 24 is detachably connected between the first upright post 20 and the second upright post 21, the trackless folding screen door further comprises a rope traction assembly for pulling the first drag chain 22 and the second drag chain 23 to synchronously move in and out in the corresponding sliding groove 210, the rope traction assembly comprises two first guide wheels 211 and a closed loop rope 243 connected between the two first guide wheels 211, and a first traction rope 240, one end of the first traction rope traction 240 is fixedly connected to the first upright post 20, the other end of the first hauling rope 240 is turned by the second guiding wheel 212 and then connected to the first towing chain 22 or the second towing chain 23, specifically, a plurality of first hauling ropes 240 which can be tightened to fold the folded gauze 24 are arranged on the folded gauze 24, one end of the first hauling rope 240 is connected with a first sliding block 241, the first sliding block 241 is connected to the second upright post 21 in a sliding manner, a second hauling rope 242 is arranged on the first sliding block 241, the second hauling rope 242 is fixedly connected with the first towing chain 22 through the second guiding wheel 212, two ends of a closed loop rope 243 are fixedly connected with the first towing chain 22, the closed loop rope 243 is divided into a working section and a pulling section, the middle part of the working section is fixedly connected with the first towing chain 22, and the middle part of the pulling section is fixedly connected with the second towing chain 23, when the folding device is used, the first upright post 20 is pushed towards the second upright post 21, the first towing chain 22 and the second towing chain 23 move towards the second upright post 21, the first towing chain 22 moves downwards in the chute 210, and the working section of the closed loop rope 243 moves downwards, the pulling section of the closed loop rope 243 moves upwards, the second pulling rope 242 moves upwards, the first pulling rope 240 moves upwards along with the sliding block under the action of the second pulling rope 242, the first pulling rope 240 is gradually tightened to fold the screen net 24, the screen door 2 is opened, in use, the first pulling chain 22 and the second pulling chain 23 are prevented from moving asynchronously, the screen door 2 is prevented from being jammed and inclined when being opened, and the service life of the screen door 2 is prolonged.

Wherein, the top end of the second upright post 21 is provided with a first guide block 25 for guiding the first drag chain 22 to move towards the slide slot 210, and the bottom end of the second upright post 21 is provided with a second guide block 26 for guiding the second drag chain 23 to move towards the slide slot 210.

As shown in fig. 4, as the utility model discloses a further improvement, first tow chain 22, second tow chain 23 are formed by connecting a plurality of chain 230, only show the schematic structure of second tow chain 23 in the figure, chain 230 includes inner plate 231, outer plate 232, be equipped with arc wall 233 on the outer plate 232, be equipped with the first arch 234 that can swing in arc wall 233 on the inner plate 231, when two liang of adjacent chains 230 are in parallel position, first arch 234 is located the upper end of arc wall 233, first tow chain 22 lies in with second tow chain 23's difference, when two liang of adjacent chains 230 are in parallel position, the first arch 234 position of first tow chain 22 is located the lower extreme of arc wall 233, during the use, the swing of chain 230 obtains spacingly, avoid chain 230 to swing excessively.

As shown in fig. 1, 5 and 6 together, as the utility model discloses a further improvement, be equipped with fixture block 10 on the door frame 1, be equipped with the protruding 100 of second on the fixture block 10, be equipped with on the first stand 20 and match suitable draw-in groove 200 with the protruding 100 of second, during the use, screen door 2 can be chucking on door frame 1.

As shown in fig. 2 and fig. 7 jointly, as the utility model discloses a further improvement, be equipped with the position adjustable take-up pulley 213 on the second stand 21, it is specific, the U-shaped opening has been seted up on the second stand 21, install pivot 214 in the U-shaped opening, the cover is equipped with take-up pulley 213 on the pivot 214, the both ends spiro union of pivot 214 has lock nut 215, when closed loop rope 243 is not hard up, can be through adjusting the position of take-up pulley 213 to take-up loop rope 243 and take up, reduce manpower and materials, improve the life of screen door 2, and the cost is saved.

As shown in fig. 2, as a further improvement of the present invention, the bottom end of the second guide block 26 is provided with a roller 216, so that the screen door 2 can be moved easily and conveniently during use, thereby reducing manpower and preventing the second guide block 26 from colliding with each other.

As shown in fig. 1, as a further improvement of the present invention, the lateral parts of the first guide block 25 and the second guide block 26 are all provided with wool tops 217, so that the screen door 2 and the door frame 1 are more tightly attached to each other during use, and play a role of buffering, thereby prolonging the service life of the screen door 2.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims (7)

1. A trackless folding screen door comprises a door frame and a screen door arranged on the door frame, and is characterized in that the screen door comprises a first upright post and a second upright post, a first drag chain is arranged at the top end of the first upright post, a second drag chain is arranged at the bottom end of the first upright post, a sliding groove for the first drag chain and the second drag chain to slide in and out is formed in the second upright post, and a folding screen net is detachably connected between the first upright post and the second upright post;

the rope traction assembly is used for dragging the first drag chain and the second drag chain to synchronously enter and exit in the corresponding sliding grooves and comprises two first guide wheels and a closed-loop rope connected between the two first guide wheels;

the first traction rope is fixedly connected to the first upright column, and the other end of the first traction rope is connected to the first drag chain or the second drag chain after being turned by the second guide wheel.

2. A trackless folding screen door according to claim 1, wherein the first and second drag chains are each formed by a plurality of chains, each chain comprising an inner link plate and an outer link plate, the outer link plate having an arcuate slot, the inner link plate having a first protrusion adapted to swing within the arcuate slot.

3. A trackless folding screen as claimed in claim 1, wherein the top end of the second upright has a first guide block for guiding the first drag chain toward the chute and the bottom end of the second upright has a second guide block for guiding the second drag chain toward the chute.

4. A trackless folding screen door as claimed in claim 1, wherein the door frame is provided with a latch, the latch is provided with a second protrusion, and the first upright is provided with a slot adapted to fit the second protrusion.

5. A trackless folding screen as claimed in claim 1, wherein the second upright is provided with an adjustable tensioning wheel.

6. A trackless folding screen as claimed in claim 3 wherein the bottom end of the second guide block is provided with rollers.

7. A trackless folding screen as claimed in claim 3 wherein the first and second guide blocks are provided with wool tops on their sides.

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