CN1072604C - High capacity self-propelled safety ladder - Google Patents

Abstract

A high capacity self-propelled safety ladder comprising: a track device; the annular chain ladder is annularly arranged on the track device; a fixing device for fixing the annular chain ladder and the track device so that the annular chain ladder can circularly move between the track devices; and a speed reducer fixed on the fixing device to make the annular chain ladder slowly descend when carrying the weight.

Description

High capacity self-propelled safety ladder

The present invention relates to a safety ladder, and more specifically relates to a safety ladder with high transport capacity and self-propelled performance that can be used on all floors without electronics.

There are many types of commonly used escape safety devices, but they are mostly used individually by each household or floor, and they cannot be used by multiple people at the same time, otherwise it will cause safety problems; moreover, many of these escape safety devices are temporary. When there is a problem with the installation, the consequences will be unimaginable if the installation is not good or the escape safety device cannot be found temporarily; in addition, when the escape safety device is used by many people at the same time, it will be pushed and stamped. , poor physical strength or a little care, it is easy to cause the danger of falling, and even this type of danger is caused by pushing and colliding due to the speed of each person's movements, and this safety ladder can improve its shortcomings.

The main purpose of the present invention is to provide a high-capacity self-propelled safety ladder that does not require electricity and can be used simultaneously on all floors.

In order to achieve the above object, the high-capacity self-propelled safety ladder of the present invention includes: a track device; an annular chain ladder, which is located on the track device; Circular movement among the devices; and a deceleration device fixed on the fixed device, so that the circular chain ladder can slowly descend when the load is loaded.

The above-mentioned high-capacity self-propelled safety ladder, wherein the track device is divided into two sets of tracks, each set of tracks is composed of a -shaped section track without gaps, the upper and lower ends are arc-shaped, and the turning point of the -shaped section track The  shape is wider to allow smooth operation of the circular chain ladder. But the two groups of tracks can also be integrated by metal strips or plates. In addition, in the track device, each group of tracks can also be composed of two small groups of tracks, and each small group of tracks is composed of several  -shaped cross-section rails, so as to adjust the expansion deformation of the  -shaped cross-section rails when the length is longer.

Yet above-mentioned high-capacity self-propelled safety ladder, wherein ring-shaped chain ladder comprises: several axle rods, its length is slightly shorter than the horizontal distance of this two groups of -shaped cross-section rails, has screw thread above; Both ends of the flat block have a shaft hole to be inserted into the shaft; and several nuts can be locked on the thread of the shaft so that the long flat block on the shaft position. The middle part of several shaft rods is thicker, and the shaft hole on the flat block with a longer diameter is larger to prevent the long flat block from moving in the middle, and the part extending to the two sides is thinner, slightly smaller than the The shaft hole on the long flat block has a slightly thicker width than the two (twice) thicknesses of the long flat block, so that it will not get stuck after the combination, and then there are threads extending to the two sides for the screw The cap is locked, and there is no thread extending to the two sides behind it, and it is thinner than the threaded part, so that the nut can be inserted from the two ends of the shaft.

When assembling, first use two shaft rods (called the first group) to insert the two ends of each of the long flat blocks, and then use the two shaft rods (called the second group) to insert the two ends of each into the flat block. One of the long flat blocks, and then the two ends of the two shafts are respectively inserted into one of the long flat blocks by the lower shafts of the first group and the upper shafts of the second group, and then the first The two ends of the lower shaft rod of the second group and the upper shaft rod of the second group are respectively inserted into a nut to lock and position them; Position together until the last group of lower shafts and the first group of upper shafts are combined to form a ring-shaped chain ladder, and the ring-shaped chain ladder can be lengthened as required to be suitable for high buildings.

Of course, the two ends of the above-mentioned shaft further include a pulley or bearing, which are located in the  -shaped section track to make the movement more smooth.

Certainly, wherein the axle rod of the ring-shaped chain ladder also includes a stepping frame at an appropriate distance, and the stepping frame is also made up of two long flat blocks and at least one cross bar, and the at least one cross bar is mounted on the two long flat blocks. On the flat block, one end of the two long flat blocks has a hole, which is worn on the shaft of the circular chain ladder, and on the inner (or outer) side of the two long flat blocks on the original circular chain ladder. , but there is a protrusion in the middle of the two long flat holes of the stepping frame. The two long flat blocks on the ladder are at right angles so that people can stand.

In addition, in the above-mentioned high-capacity self-propelled safety ladder, the shaft of the circular chain ladder includes a stepping frame at an appropriate distance, and the stepping frame is also composed of two long flat blocks and at least one horizontal bar , at least one cross bar is framed on two long flat blocks, and one end of the two long flat blocks is provided with a hole, which is sheathed on the two long flat blocks of the ring-shaped chain ladder, but on the original ring-shaped chain ladder The two long flat blocks are L-shaped, but there is a hole on the L shape and a protrusion slightly below one side, and the hole can be connected with the holes on the two long flat blocks forming the stepping frame with bolts and screws. The cap is engaged, but the protrusion can block the two long flat blocks of the step frame when the step frame falls due to gravity, so that the step frame and the L-shaped two long flat blocks on the ring chain ladder are at right angles, so that standing people.

The above-mentioned high-capacity self-propelled safety ladder, wherein the two long flat blocks of the step frame can also be formed by joining together in sections.

In the high-capacity self-propelled safety ladder mentioned above, a board or a net is also included on the stepping frame, so that it is easier for people to stand on it.

Furthermore, in the above-mentioned high-capacity self-propelled safety ladder, the shaft of the ring-shaped chain ladder is provided with a hammer at an appropriate distance, and one side of the track device has a bell, which will ring when the hammer passes the bell. Ring the bell to show the altitude you have descended.

Discuss the above-mentioned high-capacity self-propelled safety ladder again, wherein the deceleration device is composed of several shafts and gears, fixed on the fixing device, but there is at least one power conversion wheel in the middle of one of the gear shafts, the power conversion wheel Also fixed on the gear shaft, each toothed plate on the conversion wheel can just enter the middle of the two axle bars of the circular chain ladder, so that the circular chain ladder can run stably on the large gear and in the -shaped section track.

Generally speaking, when the number of people is large or the weight is heavy, the descending speed of the high-capacity self-setting safety ladder will be faster, so the reduction device of the present invention also includes at least one fan blade, which is placed on the group of reduction gears On a gear shaft, the descending speed of the circular chain ladder is adjusted due to wind resistance when rotating.

In addition, at least one fan blade also includes a pair of fan blades, the auxiliary fan blades are buckled on the fan blades by springs, when the rotation is fast, due to centrifugal force and or wind resistance, the auxiliary fan blades are opened to increase the wind resistance , to adjust the descending speed of the circular chain ladder.

For ease of description, the present invention is better understood through the following preferred embodiments and illustrations.

Fig. 1 is a perspective view of a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of a preferred embodiment of the present invention - shaped cross-section track, shaft rod and strip flat block;

Fig. 3 is a schematic diagram of a shaft rod in a preferred embodiment of the present invention;

Fig. 4 is the combination schematic diagram of the preferred embodiment of the present invention endless chain ladder;

Fig. 5 is a schematic diagram of the composition of the stepping frame in a preferred embodiment of the present invention;

Fig. 6 is a schematic diagram of a bell and a hammer in a preferred embodiment of the present invention;

Fig. 7 A and Fig. 7 B are the schematic diagrams of the deceleration device in the preferred embodiment of this case;

Fig. 8 is a schematic diagram of a fan blade in a preferred embodiment of the present invention;

Fig. 9 is a schematic diagram of the use of the present invention.

The present invention is a high-capacity self-propelled safety ladder, please refer to Figure 1, which includes: a track device 1; a ring-shaped chain ladder 2, which is set on the track device 1; a fixing device 3, which fixes the ring-shaped chain ladder 2 and the track device 1, so that the endless chain ladder 2 can move circularly between the track devices 1;

The above-mentioned high-capacity self-propelled safety ladder, wherein the track device is divided into two sets of tracks, please refer to Figure 2, each set of tracks is composed of a -shaped section track 5 without gaps, only the upper and lower ends are arc-shaped, And the  shape of the  shape section track 5 turns is wider, so that the ring chain ladder runs smoothly.

According to the above-mentioned high-capacity self-propelled safety ladder, please refer to Fig. 1, Fig. 3 and Fig. 4, wherein the circular chain ladder 2 includes: several shaft rods 6, the length of which is slightly shorter than the horizontal distance of two sets of -shaped section rails, There are threads 7 on it; several long flat blocks 8, and both ends of the long flat blocks 8 have a shaft hole 9 to be inserted into the shaft 6; and several nuts 10 are locked on the shaft Thread 7 of rod 6, so that the elongated flat piece 8 on this axle rod 6 is positioned.

Several shaft rods 6 are thicker in the middle, and the shaft holes 9 on the flat block 8 with a longer diameter are larger, so as to prevent the long flat block 8 from moving in the middle, while the extensions 11 to the two sides are thinner , slightly smaller than the shaft hole 9 on the long flat block 8, and the extended width 11 is slightly thicker than the two thicknesses of the long flat block 8, so that it will not be stuck after the combination, and then there are threads extending to the two sides 7, for the nut 10 to be locked, and then extend 12 to the side without thread, and it is slightly thinner than the thread 7, so that the nut 10 can be inserted from the two ends of the shaft 6.

When assembling, please refer to Fig. 4, earlier with two shaft rods 6 (claiming the first group a), its two ends are respectively inserted into a strip flat block 8, then with two shaft rods (claiming the second group b), Each of its two ends is also inserted into one of the long flat blocks 8, and then the two ends of the two shafts are also respectively inserted into one by the lower shaft c of the first group and the upper shaft d of the second group. The long flat block 8 (the flat block 8 on the left of the figure), and then the two ends of the lower shaft c of the first group and the upper shaft d of the second group are respectively inserted into a nut 10 and locked and positioned; In the same way, the lower shaft rods of the second group and the upper shaft rods of the third group are pinned and positioned; until the lower shaft rods of the last group and the upper shaft rods of the first group are combined to form an endless chain ladder 2 , and the circular chain ladder 2 can be lengthened as needed, so as to be suitable for tall buildings.

Of course, please refer to FIG. 2 , the ends 12a of the extensions 12 on both sides of the above-mentioned shaft 6 can be incorporated into a pulley or bearing 13, and fastened and positioned by a c-shaped ring 12a. This pulley or bearing 13 is located in the -shaped section track 5 to make the movement smoother.

Of course, the above-mentioned high-capacity self-propelled safety ladder, please refer to Fig. 5, wherein the shaft bar 6 of the circular chain ladder 2 is provided with a stepping frame 14 at an appropriate distance, and the stepping frame 14 is also made of two long flat blocks 15 and at least one cross bar 16, the cross bar is erected on the two long flat blocks 15, and one end of the two long flat blocks 15 has a hole 17, which is the two long flat blocks that go through the ring chain ladder On 8 shaft rods, yet, two elongated flat blocks 8 on the original circular chain ladder are L-shaped, but there is a hole 18 and a protrusion 19 slightly below the side thereof on the L-shape, and this hole 18 can be connected with this The holes 17 on the two long flat blocks 15 forming the foot frame 14 are engaged with bolts and nuts. When the foot frame 14 falls due to gravity, the protrusion 19 blocks the two long flat blocks 15 of the foot frame 14, Make stepping frame 14 and the L-shaped two long strip flat pieces 8 on the ring chain ladder 2 to be at right angles, so that stand people. Certainly, a board or a net (not shown) can also be included on the foot frame 14, so that it is easier for people to stand on. It is worth noting that this safety ladder can be used for personnel who step on the shaft rod 6 on the chain ladder 2 at will. The main purpose of stepping frame 14 is except that the personnel on it can save more effort, and can prevent personnel from falling to the lower floor concurrently.

According to the aforementioned chain ladder 2 and track device 1, it can be clearly known that because each element of the chain ladder 2 is mutually squeezed with the track device 1, even if the chain ladder 2 is damaged, if the long flat block 8 is broken At the same time, each segment of the chain ladder 2 will also push each other under the restriction of the track device 1, and still can circulate continuously, so the personnel carried by this safety ladder can ensure safety without danger.

Furthermore, the above-mentioned high-capacity self-propelled safety ladder, please refer to Figure 6, wherein the shaft 6 of the circular chain ladder 2 is also provided with a hammer 20 at an appropriate distance, and one side of the track device 1 has a Bell 21, when the hammer 20 passes by the bell 21, the bell 21 will be sounded to indicate that it has descended, for example, the height of a floor.

In addition, the above-mentioned high-capacity self-propelled safety ladder, please refer to Figure 7A and Figure 7B, wherein the reduction device 4 is composed of several shafts 22 and gears 23, and is fixed on the fixing device 3, but one of the gear shafts 22 There are also two power conversion wheels 24 in the middle of the center, and the conversion wheels 24 are also fixed on the gear shaft 22. Each tooth plate on the change wheel 24 just can enter the middle of the two axle bars 6 of the ring chain ladder 2, so that the ring The chain ladder 2 runs stably on the conversion wheel 24 and in the -shaped section track 5.

Generally speaking, security facilities are very afraid of thieves taking advantage of the opportunity to enter. As far as this safety ladder is concerned, as soon as the personnel go up the chain ladder 2, they will start this safety ladder to promote their descent. And the running of chain ladder 2 will make the sound of bell 21, to produce warning effect, so this safety ladder should not be used for some villains to carry out illegal behavior.

Generally speaking, when the number of people is large or the weight is heavy, please refer to Fig. 8, the descending speed of this high capacity self-propelled safety ladder will be faster, so the reduction device 4 of the present invention includes at least one fan blade 25, the fan blade 25 Be placed on the gear shaft 22 of this group of reduction gears 23, when rotating because of the resistance of wind to regulate the descending speed of this endless chain ladder 2. Again, the fan blade 25 also includes a secondary fan blade 26, the secondary fan blade 26 is buckled on the body of the fan blade with a spring 27, and when the rotation is fast, the secondary fan blade 26 is driven by centrifugal force and or wind resistance. Open to increase the resistance of the wind to regulate the descending speed of the circular chain ladder 2.

According to the foregoing structure, the high-capacity self-propelled safety ladder of the present invention can be used in buildings with extremely high floors, and can be built together when the building is constructed. Of course, it is also feasible to attach it to the building. Fig. 9 promptly shows that the personnel can hold the shaft rod 6 by hand on the 10th floor, and step on the footrest 14 and get down.

Claims (15)

1. A high-capacity self-propelled safety ladder is characterized by comprising: a track installation; A circular chain ladder, the ring is set on the track device; A fixing device, fixing the circular chain ladder and the track device, so that the circular chain ladder can circulate between the track devices; and A deceleration device is fixed on the fixing device, so that the circular chain ladder can slowly descend when it is loaded. The deceleration device includes at least one fan blade, which can adjust the descending speed of the circular chain ladder due to wind resistance when rotating. 2. The high-capacity self-propelled safety ladder as claimed in claim 1, characterized in that there are two sets of tracks, each set of tracks is composed of a track with a -shaped cross-section without gaps, the upper and lower ends are arc-shaped, and the -shaped cross-section The  shape at the turn of the track is wider to allow the loop chain ladder to run smoothly. 3. The high-capacity self-propelled safety ladder according to claim 1, wherein the track device is composed of two sets of tracks, which are connected as a whole by metal strips or plates. 4. The high-capacity self-propelled safety ladder as claimed in claim 2 or 3, characterized in that in the track device, each set of tracks is composed of two small groups of tracks, and each group of tracks is composed of several -shaped cross-section tracks to adjust  Shaped cross-section rails are deformed due to expansion at longer lengths. 5. The high-capacity self-propelled safety ladder as claimed in claim 1, characterized in that the ring-shaped chain ladder comprises: Several shafts, the length of which is slightly shorter than the horizontal distance of the two sets of -shaped section rails, have threads on them; a plurality of elongated flat blocks, each of which has a shaft hole at both ends to be inserted into the shaft; and Several nuts are locked on the threads of the shaft to position the long flat block on the shaft. 6. The high-capacity self-propelled safety ladder as claimed in claim 5, wherein the intermediate parts of several shaft rods are thicker, and the shaft holes on the longer flat block are larger, so as to prevent the long flat block from Move in the middle, and the extension to the two sides is thinner, slightly smaller than the shaft hole on the long flat block, and the extended width is longer. The thickness of the two flat blocks is slightly thicker, so that it will not get stuck after combination, Extending to the two sides, there are threads for the nut to lock, and then extending to the two sides, there is no thread, and the thread is thinner, so that the nut can be inserted from the two ends of the shaft. 7. The high-capacity self-propelled safety ladder according to claim 5, characterized in that, the two ends of the shaft further include a pulley or a bearing located in the  -shaped section track to make the movement more smooth. 8. The high-capacity self-propelled safety ladder as claimed in any one of claims 5, 6 or 7, is characterized in that the shaft of the ring-shaped chain ladder also has a stepping frame at an appropriate distance, and the stepping frame is also composed of two lengths. One flat block and at least one cross bar, the at least one bar is erected on the two long flat blocks, one end of the two long flat blocks has a hole, which can be worn on the shaft of the circular chain ladder , on the inner (or outer) side of the two long flat blocks on the original circular chain ladder, but there is a protrusion in the middle of the two long flat block holes of the stepping frame, and the protrusion is stuck when falling by gravity On the two long flat blocks on the original circular chain ladder, make stepping frame and the two long flat blocks on the original circular chain ladder at right angles, so that stand people. 9. The high-capacity self-propelled safety ladder as claimed in claim 8, wherein the shaft of the ring-shaped chain ladder also has a stepping frame at an appropriate distance, and the stepping frame is also composed of two long flat blocks and at least one cross bar Composition, the bar is framed on two long flat blocks, one end of the two long flat blocks has a hole, which can be worn on the shaft of the circular chain ladder, but the two long flat blocks on the original circular chain ladder The block is L-shaped, but there is a hole on the L-shape and a protrusion slightly below the side. When this stepping frame fell because of gravity, the two long flat pieces of the stepping frame could be blocked by this protrusion, so that two long strips of an L shape on the stepping frame and the ring chain ladder were at right angles, so as to stand people. 10. The high-capacity self-propelled safety ladder according to claim 9, characterized in that the two long flat blocks of the stepping frame can also be joined together in sections. 11. The high-capacity self-propelled safety ladder according to claim 10, characterized in that the foot frame also includes a plate or a net to make it easier for people to stand on. 12. The high-capacity self-propelled safety ladder according to claim 11, wherein the shaft of the circular chain ladder also has a hammer at an appropriate distance, and one side of the track device has a bell, When the hammer passes the bell, it will ring the bell, which can indicate the height that has fallen. 13. The high-capacity self-propelled safety ladder according to claim 1, wherein the deceleration device is composed of several shafts and gears, and is fixed on the fixed device, but at least one power is provided in the middle of one of the gear shafts. The conversion wheel, which is also fixed on the gear shaft, and each tooth plate on the conversion wheel can just enter the middle of the two shafts of the circular chain ladder, so that the circular chain ladder can run stably on the conversion wheel and in the shape of within the section track. 14. The high-capacity self-propelled safety ladder according to claim 1, wherein the at least one fan blade is placed on the gear shaft of one of the set of reduction gears. 15. The high-capacity self-propelled safety ladder as claimed in claim 14, characterized in that the at least one fan blade also includes a pair of fan blades, and the auxiliary fan blade is buckled on the fan blade by a spring. And or the effect of wind resistance, make this auxiliary fan blade open, further increase the resistance of wind, to regulate the descending speed of this endless chain ladder.

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