CN112814297A - Screw tube muff-coupling type suspended landscape staircase - Google Patents

Abstract

A screwed pipe muff-coupling type suspended landscape stair belongs to the technical field of fabricated buildings and comprises a floor slab, a floor, a suspended component and a step plate, wherein the suspended component comprises a double-suspender, a double-pull rod and a screwed pipe; the double-suspension rod comprises a double-rod basket type reverse spiral suspension rod consisting of a lower suspension rod, a lower supporting rod, a supporting rod, an upper supporting rod and an upper suspension rod in sequence and a double-rod zigzag reverse spiral suspension rod consisting of a left suspension rod, a bottom supporting rod and a right suspension rod in sequence, and the double-pull rod is a double-rod basket type reverse spiral pull rod consisting of a left pull rod, a top beam rod and a right pull rod in sequence; external threads in opposite directions are arranged on the double-suspension rod and the double-pull rod, internal threads matched with the external threads are arranged in the screw pipe, and two screw rod through holes are drilled at two ends of the step plate; the ladder has the advantages that the step plates are integrally connected end to end in a special structure formed by the double hanging rods and the double pull rods to directly form a whole, so that the suspended landscape stairway has strong safety and earthquake-resistant performance.

Description

Screw tube muff-coupling type suspended landscape staircase

Technical Field

The invention relates to the technical field of assembly type buildings, in particular to a solenoid sleeving type suspended landscape stair.

Background

The stairs are building components for connecting spaces with different elevations in the building and are used for traffic connection between floors and when the height difference is large. Functionally, as a vertical transportation tool, the stairs closely link the floors together and are necessary components of the building, and whether the design of the stairs is reasonable or not has direct influence on the using effect of the building.

The design of stairs is needed to meet the requirements of traffic and evacuation on one hand, and on the other hand, abundant and variable building space is created by the aid of the stairs, and the stairs are designed as an artwork. In modern houses, in the design of stairs of duplex buildings, split floors, villas and multi-storey buildings, the home decoration style is more and more emphasized by people, the stairs are no longer simple vehicles for going up and down, and become a bright scenic spot in home decoration and a smart artwork in home. Therefore, many modern residences are provided with suspended landscape stairs, but most of the modern residences only address the appreciation and do not pay attention to the safety. In fact, the construction of stairs is closely related to the life safety of the user, and even if the decoration function is required, the safety of the stairs is ensured at first.

For example, patent document CN103628638B discloses a detachable hanging landscape staircase structure, which is composed of a hanging member, a stair step member, a platform member and a decorative guardrail member. The stair step component consists of a steel structure pedal, a mounting groove, a connecting steel plate and a damping sound insulation structure; the platform member consists of a steel structure platform, a mounting groove, a connecting member and a damping sound insulation structure; the suspension member is used as a force bearing connecting piece among the building structure beam, the stair step member and the platform member and consists of a chemical bolt, a fastening connecting piece, a screw rod, a fastening nut, a decorative cover and a stainless steel decorative sleeve; the decorative guardrail member is disposed between the stainless steel decorative sleeves. The scheme has the advantages of simple structure, clear and quick modeling, capability of being prefabricated outside the site and assembled on the site, short construction period, low setting cost and detachability; various decorative elements can be added, the decorative style can be changed along with the adjustment of the home decorative style, and the like, but the decorative elements are fixed on the upper floor by adopting chemical bolts, if the transverse drilling is used for fixing, the vertical suspension type holding is carried out, the holding force is inevitably easy to loosen in long-term use, and serious potential safety hazard exists; in addition, the common fastening nut is adopted for connection and fixation, so that the split pin is prevented from being unscrewed due to vibration, the split pin has two defects, namely, a hole for inserting the split pin is very small, the split pin is complex in actual construction, and the nut cannot be exactly positioned at the split pin under most conditions of locking positions, so that holes are required to be additionally formed in a screw rod on a construction site, and the construction is complex.

Disclosure of Invention

The invention aims to solve the technical problem of providing a connecting device which does not need to hold a wall body for fixing, does not need a fastening connecting structure of a common nut, avoids the falling of a suspension component and the loosening of a connecting component, and improves the safety and the construction convenience of a landscape stair.

In order to solve the technical problem, the invention adopts the technical scheme that the coil sleeving type suspended landscape staircase comprises a floor slab, a floor, a suspension component and a step plate, and is characterized in that the suspension component comprises double suspension rods, double pull rods and a coil; the double-suspension rod comprises a head and a tail double-rod frame-shaped reverse spiral suspension rod respectively and a plurality of double-rod zigzag reverse spiral suspension rods in the middle, and the double-pull rods are a plurality of double-rod frame-shaped reverse spiral pull rods; the double-rod zigzag reverse spiral suspender is a planar frame rod consisting of a lower suspender, a lower supporting rod, a supporting rod, an upper supporting rod and an upper suspender which are sequentially and directly connected in a right-angle bent shape, wherein the lower suspender and the upper suspender are parallel to each other, the end heads of the lower suspender and the upper suspender face to the same direction but do not need to be flush, external threads are respectively arranged at the upper parts, namely the end edge parts, of the lower suspender and the upper suspender, and the spiral direction of the external threads on the lower suspender is opposite to that of the external threads on the upper suspender; the double-rod basket type reverse spiral suspender is a planar hack lever formed by a left suspender, a bottom supporting rod and a right suspender which are sequentially and directly connected in a right-angle bent shape, wherein the left suspender and the right suspender are parallel to each other, the end heads of the left suspender and the right suspender face to the same direction but are not required to be flush, external threads are respectively arranged at the upper parts, namely the end edge parts, of the left suspender and the right suspender, and the spiral directions of the external threads on the left suspender and the external threads on the right suspender are opposite; the grid-shaped reverse spiral pull rod is a planar frame rod formed by a left pull rod, a top beam rod and a right pull rod which are sequentially and directly connected in a right-angle bent shape, wherein the left pull rod and the right pull rod are parallel to each other, the end heads of the left pull rod and the right pull rod face to the same direction but do not need to be flush, external threads are respectively arranged at the lower parts, namely the end edge parts, of the left pull rod and the right pull rod, and the spiral directions of the external threads on the left pull rod and the external threads on the right pull rod are opposite; namely, the double-rod basket type reverse spiral suspender has the same structure as the double-rod basket type reverse spiral pull rod, and only the directions of the pull rod and the suspender are opposite; the screw pipe is internally provided with internal threads, the internal threads of the screw pipe are matched with the external threads, and the screw pipe can be screwed on any external thread; the step plate is in a rectangular block shape, and two screw rod through holes are drilled in the edge parts of two ends of the step plate respectively.

In each set of screwed pipe sleeve joint type suspended landscape stairs, n step plates are arranged, n +1 groups of double-rod frame-shaped reverse spiral pull rods are arranged, two of each group are arranged, and one is arranged at each end of two ends of each step plate when the steps are installed; the double-rod zigzag reverse spiral hanger rods are provided with n-1 groups, each group comprises two double-rod zigzag reverse spiral hanger rods, and the double-rod zigzag reverse spiral hanger rods are respectively arranged at two ends of the step plate when being installed, and one is arranged at each end; wherein the length of the supporting rod is equal to the height of each stair; the double-rod frame-shaped reverse spiral hanger rods are provided with two groups, each group comprises two hanger rods, one hanger rod is arranged at each end of two ends of the step plate when the step plate is installed, and the first step plate and the nth step plate are respectively provided with one group.

Preferably, the length of the pull rod is three times that of the hanging rod, namely the length of the left pull rod is three times that of the lower hanging rod or the left hanging rod, and the length of the right pull rod is three times that of the upper hanging rod or the right hanging rod; the length of the screw pipe is half of the sum of the length of the pull rod and the length of the hanging rod which are fixedly connected, namely the length of the screw pipe is two thirds of the length of the pull rod which is fixedly connected with the screw pipe and is twice of the length of the hanging rod which is fixedly connected with the screw pipe; at least the upper half part of the upper outer surface of the suspender is provided with external threads, and the lower half part of the outer surface of the suspender is provided with a smooth rod without the external threads; at most one third of the outer surface of the upper pull rod is provided with an external thread which is arranged at the lower part of the pull rod, and the other two thirds of the outer surface of the upper pull rod is provided with a smooth rod without the external thread; the outer diameter of the smooth rod is smaller than the root diameter of the external thread; therefore, the screw tube can move on the smooth sliding rod without screwing, and the screw thread is not exposed outside the screw tube after the screw tube is installed.

The combination length of each group of suspension rods and pull rods connected with the step plate is sequentially reduced according to the step height of the step plate; the length of each step reduction is equal to the height of the support bar.

It is further preferred that the smooth rod has an outer diameter equal to 98% of the root diameter of the external thread.

It is further preferred that the upper outer surface of the hanger rod is provided with external threads.

The installation method of the coil pipe sleeved type suspended landscape staircase comprises the following steps:

drilling a screw hole on a floor slab according to design requirements; the names of all parts in the construction are set as follows:

the tread closest to the floor in the staircase is called the first tread and is subsequently called the second tread, the third tread … … in that order, and the tread closest to the floor is called the nth tread.

The double-rod basket-shaped reverse spiral suspender arranged on the left side of the first step plate is called a first double suspender, and each section of the double-rod basket-shaped reverse spiral suspender is called a first left suspender, a first bottom bracket rod and a first right suspender respectively; the double-rod zigzag reverse spiral suspenders installed on the right side of the first tread and the left side of the second tread are called second double suspenders, each section of which is called second lower suspenders, second lower supporters, second support rods, second upper supporters and second upper suspenders respectively, each section of which is called third double suspenders, fourth double suspenders … … in turn, and the double-rod zigzag reverse spiral suspenders installed on the right side of the n-1 tread and the left side of the n tread are called nth double suspenders, each section of which is called nth lower suspenders, nth lower supporters, nth support rods, nth upper supporters and nth upper suspenders respectively; the double-rod basket-shaped reverse spiral suspender arranged on the right side of the nth step plate is called an n +1 th double suspender, and each section of the double-rod basket-shaped reverse spiral suspender is called an n +1 th left suspender, an n +1 th bottom supporting rod and an n +1 th right suspender respectively.

The double-rod basket-shaped reverse spiral pull rod arranged on the floor above the left side of the first step plate is called a first double pull rod, and each section of the double-rod basket-shaped reverse spiral pull rod is called a first left pull rod, a first top beam rod and a first right pull rod respectively; the double-rod basket type counter-spiral pull rods arranged on the floor slabs above the right side of the first tread plate and the left side of the second tread plate are called second double pull rods, and the double-rod basket type counter-spiral pull rods arranged on the floor slabs above the right side of the nth-1 tread plate and the left side of the nth tread plate are called third double pull rods and fourth double pull rods … … in sequence and are called nth double pull rods; the double-rod basket-shaped reverse spiral pull rod arranged on the floor above the right side of the nth step plate is called an n +1 th double pull rod, and each section of the double-rod basket-shaped reverse spiral pull rod is called an n +1 th left pull rod, an n +1 th top beam rod and an n +1 th right pull rod respectively.

The screw pipes installed on the first left boom and the first left tie rod become a first left screw pipe, the screw pipes installed on the first right boom and the first right tie rod become a first right screw pipe, and hereinafter, the screw pipes are sequentially called as a second left screw pipe, a second right screw pipe … … installed on the (n + 1) th left boom and the (n + 1) th left tie rod become an n +1 th left screw pipe, and the screw pipes installed on the (n + 1) th right boom and the (n + 1) th right tie rod become an n +1 th right screw pipe.

The best method is that the installation is from bottom to top, and the installation of all the step boards is carried out at the same time at both ends; firstly, a first double pull rod, a second double pull rod … … and a left pull rod and a right pull rod on an n +1 th double pull rod are respectively inserted from left to right downwards in sequence and penetrate through each screw rod hole on a floor slab; and each top beam rod is tightly attached to the upper surface of the floor slab, and then each equipped screwed pipe is completely screwed into each corresponding left pull rod or right pull rod until the threads on the left pull rod or right pull rod are exposed.

Thirdly, a first step plate is installed, a first right suspender in a first double suspender, namely the double-bar basket type reverse spiral suspender, is upwards inserted into and penetrates through a screw through hole on the left side of the edge of the first step plate, the first bottom supporter extends leftwards and tightly abuts against the lower surface of the first step plate, the first bottom supporter is upwards wound around the left edge of the first step plate, then the first left suspender is continuously upwards abutted against the first left pull rod, and the direction of the screw of the external screw on the first left suspender and the first left pull rod after the abutting joint is the same; meanwhile, the first right suspension rod is butted and abutted with the first right pull rod, and the screw direction of the external screw thread on the butted first right suspension rod is the same as that of the external screw thread on the butted first right suspension rod; then, a first left screw pipe on the first left pull rod is rotated downwards, the first left screw pipe is rotated to the first left suspension rod until the left edge of the first stepping board is tightly abutted, and meanwhile, a first right screw pipe on the first right pull rod is rotated downwards, the first right screw pipe is rotated to the first right suspension rod until the left side of the first stepping board is tightly abutted; therefore, the butt joint and the connection fixation of the first double pull rod and the first double suspension rod are well assembled; at the moment, the spiral tube supports against the step plate, the contact position of the suspender and the pull rod is positioned in the middle of the interior of the spiral tube, the suspender and the pull rod are both fixed by the spiral tube in a spiral way, the stair can be loosened under the vibration of long-term use, the double suspender and the double pull rod are both connected together, the double suspender and the double pull rod cannot rotate, the spiral tube only can rotate and loosen, but the suspender and the pull rod are spirally wrapped by the long spiral tube, even if the spiral tube rotates, the close connection relationship between the suspender and the pull rod cannot be changed, unless the spiral tube completely upwards rotates until the spiral tube is separated from the suspender, the suspender has a certain length and cannot be separated at a moment, and the spiral tube can descend after rising due to the action of gravity, so the spiral tube cannot be separated from the suspender basically; particularly, the screw direction of the external screw threads on the first left suspension rod and the pull rod is opposite to that of the external screw threads on the first right suspension rod and the pull rod, when the first left screw pipe and the first right screw pipe are vibrated, the acting force direction of the first left screw pipe and the acting force direction of the first right screw pipe are necessarily the same, and at the moment, if the first left screw pipe tends to be unscrewed upwards, the first right screw pipe tends to be screwed downwards; the combination of these two fastening routes makes the connection between jib and pull rod never to loosen and fall off.

Fourthly, inserting a second double-suspension rod, namely a second lower suspension rod in the double-rod zigzag reverse spiral suspension rod into and penetrating through a screw rod through hole on the right side of the edge of the first tread board, extending the second lower supporting rod rightwards and abutting against the lower surface of the first tread board, enabling the second supporting rod to wind the right edge of the first tread board upwards, then inserting the second upper suspension rod upwards and penetrating through a screw rod through hole on the left side of the edge of the second tread board, and extending the second upper supporting rod leftwards and abutting against the lower surface of the second tread board; then continuing to upwards butt and tightly abut the second lower suspender and the second left pull rod, and enabling the screw direction of the external threads on the butted second lower suspender and the second left pull rod to be the same; meanwhile, the second upper suspender is butted and abutted against the second right pull rod, and the screw direction of the external screw thread on the butted second upper suspender is the same as that of the external screw thread on the second right pull rod; and then, a second left screw pipe on the second left pull rod is rotated downwards and is screwed to the second lower suspender until the second left screw pipe abuts against the right side of the first step plate, and simultaneously, a second right screw pipe on the second right pull rod is rotated downwards and is screwed to the second upper suspender until the second right screw pipe abuts against the left side of the second step plate.

Fifthly, inserting a third double-suspender, namely a third lower suspender in the double-rod zigzag reverse-spiral suspender into the screw through hole on the right side of the edge of the second step plate, extending the third lower supporting rod rightwards and abutting against the lower surface of the second step plate, enabling the third supporting rod to wrap the right edge of the second step plate upwards, then inserting the third upper suspender upwards and penetrating through the screw through hole on the left side of the edge of the third step plate, and extending the third upper supporting rod leftwards and abutting against the lower surface of the third step plate; then, the third lower suspender and the third left pull rod are continuously upwards butted and tightly abutted, and the screw direction of the external screw thread on the butted third lower suspender and the third left pull rod is the same; meanwhile, the third upper suspender is butted and abutted against the third right pull rod, and the screw direction of the external screw thread on the butted third upper suspender is the same as that of the external screw thread on the third right pull rod; and then, a third left screw pipe on the third left pull rod is rotated downwards, the third left screw pipe is rotated to the third lower suspender until the third left screw pipe abuts against the right side of the second step plate, and simultaneously, a third right screw pipe on the third right pull rod is rotated downwards, the third right screw pipe is rotated downwards, and the third right screw pipe is rotated to the third upper suspender until the third right screw pipe abuts against the left side of the third step plate.

Sixthly, sequentially installing the double-rod zigzag reverse spiral hanging rods and the step plate until the nth double hanging rod, namely the nth lower hanging rod in the last double-rod zigzag reverse spiral hanging rod, is inserted into and penetrates through the screw rod through hole in the right side of the edge of the nth-1 step plate, enabling the nth lower supporting rod to extend rightwards and abut against the lower surface of the nth-1 step plate, enabling the nth supporting rod to wind the edge of the right side of the nth-1 step plate upwards, then inserting the nth upper hanging rod upwards and penetrating through the screw rod through hole in the left side of the edge of the nth step plate, and enabling the nth upper supporting rod to extend leftwards and abut against the lower surface of the nth step plate; then continuing to upwards butt and tightly abut the nth lower suspender and the nth left pull rod, and enabling the screw direction of the external threads on the butted nth lower suspender and the nth left pull rod to be the same; meanwhile, the nth upper suspender is butted and abutted with the nth right pull rod, and the screw direction of the external screw thread on the butted nth upper suspender and the nth right pull rod is the same; and then the nth left solenoid on the nth left pull rod is rotated downwards and is rotated to the nth lower suspender until the nth left solenoid abuts against the right side of the nth-1 step plate, and the nth right solenoid on the nth right pull rod is rotated downwards and is rotated to the nth upper suspender until the nth right solenoid abuts against the left side of the nth step plate.

Finally, inserting the (n + 1) th double-suspender, namely the (n + 1) th left suspender in the other double-rod basket-shaped reverse spiral suspender upwards into the screw through hole on the right side of the edge of the (n + 1) th stepping plate, extending the (n + 1) th bottom supporter rod rightwards and tightly abutting against the lower surface of the (n + 1) th stepping plate, enabling the (n + 1) th bottom supporter rod to wind the right edge of the (n + 1) th stepping plate upwards, then continuing to upwards butt the (n + 1) th left suspender with the (n + 1) th left pull rod and enabling the butted (n + 1) th left suspender and the (n + 1) th left pull rod to have the same spiral direction of the external thread; meanwhile, the (n + 1) th right suspension rod is butted and abutted with the (n + 1) th right pull rod, and the screw directions of the external threads on the (n + 1) th right suspension rod and the (n + 1) th right pull rod after butt joint are the same; then, the (n + 1) th left screw pipe on the (n + 1) th left pull rod is rotated downwards, the (n + 1) th left screw pipe is connected to the (n + 1) th left suspender in a rotating manner until the left side of the nth step plate is tightly propped, and meanwhile, the (n + 1) th right screw pipe on the (n + 1) th right pull rod is rotated downwards, the (n + 1) th right screw pipe is rotated downwards, and the (n + 1) th right screw pipe is connected to the (n + 1) th right suspender in a rotating manner until the right edge of the nth step plate is tightly propped; therefore, the n +1 th double pull rod and the n +1 th double suspension rod are butted, connected and fixed, and all the step boards are installed. The n-1 groups of double-rod zigzag reverse spiral suspenders connect the n step plates end to end in sequence, so that each step plate becomes a whole in the whole stair, and the firmness and the safety are improved.

In the above description, the step plates are mounted from the lower side and all the step plates are mounted at the same time at both ends, but it is needless to say that the step plates may be mounted from the upper side to the lower side, or from the middle, or both ends may be mounted at different times.

Furthermore, the step plate can be widened, a side groove is dug on the right side extension line of the connecting line of the screw rod through hole on the right side of the step plate, and the support rod penetrates through the side groove to be upward when the step plate is installed.

Further, the pedal device further comprises a pedal pad, and the pedal pad is used when each pedal is installed.

An undercarriage member may be additionally provided, the first double hanger bar and the first double pull bar being removed and replaced with an undercarriage member, the undercarriage member being installed between the floor and the first step plate for supporting the first step plate.

The step plate is a metal pedal or a wood pedal made of metal materials or wood materials.

Compared with the prior art, the invention has the following beneficial effects:

the butt joint structure has the advantages that the double-rod basket-shaped reverse spiral pull rod is combined with the double-rod zigzag reverse spiral hanger rod, so that the external threads on the lower hanger rod and the left pull rod after butt joint are opposite to the spiral directions of the external threads on the upper hanger rod and the right pull rod, when the butt joint structure is vibrated, the acting force directions of the left solenoid and the right solenoid are inevitably the same, and at the moment, if the left solenoid tends to be unscrewed upwards, the right solenoid tends to be screwed downwards, so that the joint structure with the double hanger rods and the double pull rod cannot be loosened and fall off practically.

The useful thing is with each jib of complete spiro union of screwed pipe and parcel to the contact position that makes jib and pull rod is located the inside middle part position of screwed pipe, make jib and pull rod all fixed by the screwed pipe spiral, stair are probably lax under long-term use vibrations, because two jibs and two pull rods all are that two end bars link together, two jibs and two pull rods are impossible the rotating, only probably the screwed pipe that the rotating is lax, nevertheless because the screwed pipe is longer and spiral parcel jib and pull rod simultaneously, even the screwed pipe rotating, hugging closely between jib and the pull rod and being connected the relation and can not change, unless the screwed pipe is upwards the rotating completely until breaking away from the jib, because the jib has certain length, can not break away from at a moment, because there is the effect of gravity again, the screwed pipe rises after will under the effect of gravity, therefore the screwed pipe can not break away from the jib basically.

The double-rod zigzag reverse spiral hanging rod is designed into a component with a lower supporting rod, a supporting rod and an upper supporting rod, two adjacent step boards can be continuously installed on the same double-rod zigzag reverse spiral hanging rod, wherein the lower supporting rod bears one step board, the upper supporting rod bears the other step board, the supporting rod directly supports the two step boards to the height of the steps, and the double-rod zigzag reverse spiral hanging rods are connected with the step boards to form a whole body which is connected with each other.

And fourthly, the solenoid is abutted against the tread plate, so that the tread plate is locked at the bottoms of the suspenders, and the stability of the tread plate can be further improved.

No welding is carried out in the whole process, and no chemical permeation is adopted to be fastened in the floor slab or the floor, so that the installation and the disassembly are convenient.

Sixthly, integrally connecting the step plates end to end in a special structure formed by the double-rod zigzag reverse spiral hanging rod and the double-rod basket reverse spiral pull rod to directly form a whole, wherein the hanging rod and the pull rod cannot be loosened and fall off in spiral wrapping of a spiral pipe due to the double-rod reverse spiral external threads of the same body, and the suspended landscape stairs have strong safety and anti-seismic performance integrally.

Drawings

Fig. 1 is a schematic view of the overall structure of a coil sleeving type suspended landscape staircase according to the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic structural view of a double-rod zigzag reverse-spiral suspender, a double-rod basket reverse-spiral pull rod and a matched spiral pipe adopted in the invention.

Fig. 4 is a schematic perspective view of the coil.

FIG. 5 is a schematic view showing the structure of the step plate used in the present invention, and the right side view is a structural view of the step plate with a widened side groove.

Fig. 6 is a schematic structural view of the staircase with the long strip double-bar basket-shaped reverse spiral pull rod removed in embodiment 3.

In the figure: 11. floor slab, 12 floor, 13 suspension member, 2 step plate, 3 double suspension rod, 4 double pull rod, 5 spiral tube, 6 double zigzag reverse spiral suspension rod, 7 double basculate reverse spiral suspension rod, 8 double basculate reverse spiral pull rod, 61 lower suspension rod, 62 lower support rod, 63 support rod, 64 upper support rod, 65 upper suspension rod, 71 left suspension rod, 72 bottom support rod, 73 right suspension rod, 81 left suspension rod, 82 top beam rod, 83 right pull rod, 53 internal thread, 21 first step plate, 22 second step plate, 23 screw through hole, 66 light slide rod, 31 first double suspension rod, 311 first left suspension rod, 312 first bottom support rod, 313 first right suspension rod, 32 second double suspension rod, 321 second lower support rod, 322 second lower support rod, 323 second support rod, second upper support rod, 325 first double suspension rod, 41 first double suspension rod, 411. The pedal comprises a first left pull rod, a first right pull rod, a second double pull rod, a 421 second left pull rod, a 423, a second right pull rod, a 511, a first left screw pipe, a 512, a first right screw pipe, a 521, a second left screw pipe, a 522, a second right screw pipe, a 24, an edge groove, a 25, a pedal pad and a 9, an underframe component.

Detailed Description

The present invention is further illustrated by the following examples, which are intended to illustrate the invention and not to limit the scope of the invention in any way.

Example 1.

As shown in the figures, the invention provides a solenoid muff-coupling type suspended landscape staircase, which comprises a floor slab 11, a floor 12, a suspension member 13 and a tread plate 2, wherein the suspension member 13 in the scheme comprises a double-suspender 3, a double-pull rod 4 and a solenoid 5; the double-suspender 3 comprises a double-rod frame-shaped reverse spiral suspender 7 at the head and the tail respectively and a plurality of double-rod zigzag reverse spiral suspenders 6 in the middle, and the double-pull rod 4 is a plurality of double-rod frame-shaped reverse spiral pull rods 8; the double-rod zigzag reverse spiral suspender 6 is a planar suspender composed of a lower suspender 61, a lower supporting rod 62, a supporting rod 63, an upper supporting rod 64 and an upper suspender 65 which are sequentially and directly connected in a right-angle bent shape, wherein the lower suspender 61 and the upper suspender 65 are parallel to each other, the end heads of the lower suspender and the upper suspender 65 face to the same direction but are not required to be flush, the upper parts, namely the end edge parts, of the lower suspender 61 and the upper suspender 65 are respectively provided with an external thread, and the external thread on the lower suspender 61 is opposite to the spiral direction of the external thread on the upper suspender 65; the double-rod basket-shaped reverse spiral suspender 7 is a planar suspender composed of a left suspender 71, a bottom supporter 72 and a right suspender 73 which are sequentially and directly connected in a right-angle bent shape, wherein the left suspender 71 and the right suspender 73 are parallel to each other, the end heads of the left suspender 71 and the right suspender 73 face to the same direction but do not need to be flush, the upper parts, namely the end edge parts, of the left suspender 71 and the right suspender 73 are respectively provided with an external thread, and the spiral direction of the external thread on the left suspender 71 is opposite to that of the external thread on the right suspender 73; the basket-shaped reverse spiral pull rod 8 is a planar frame rod formed by a left pull rod 81, a top beam rod 82 and a right pull rod 83 which are sequentially and directly connected in a right-angle bent shape, wherein the left pull rod 81 and the right pull rod 83 are parallel to each other, the end heads of the left pull rod 81 and the right pull rod 83 face to the same direction but are not required to be flush, external threads are respectively arranged at the lower parts, namely the end edge parts, of the left pull rod 81 and the right pull rod 83, and the spiral directions of the external threads on the left pull rod 81 and the external threads on the right pull rod 83 are opposite; namely, the double-rod basket type reverse spiral suspender 7 and the double-rod basket type reverse spiral pull rod 8 have the same structure, and the directions of the left pull rod and the right pull rod formed after installation are opposite to the directions of the left suspender and the right suspender; the screw pipe 5 is internally provided with an internal thread 53, the internal thread 53 of the screw pipe 5 is matched with each external thread, and the screw pipe 5 can be screwed on any external thread; the step plate 2 is in a rectangular block shape, and two screw rod through holes 23 are drilled at the edge parts of two ends of the step plate 2 respectively.

In each set of screwed pipe sleeve joint type suspended landscape stairs, n stepping plates 2 are arranged, n +1 groups of double-rod frame-shaped reverse spiral pull rods 8 are arranged, two groups are arranged, and one is arranged at each end of two ends of each stepping plate 2 when the steps are installed; the double-rod zigzag reverse spiral hanger rods 6 are provided with n-1 groups, each group comprises two double-rod zigzag reverse spiral hanger rods, and the double-rod zigzag reverse spiral hanger rods are respectively arranged at two ends of the step plate 2 when being installed, and one double-rod zigzag reverse spiral hanger rod is arranged at each end; wherein the length of the support bar 63 is equal to the height of each stair step; two groups of double-rod basket-shaped reverse spiral suspenders 7 are arranged, each group comprises two suspenders, one suspender is arranged at each end of two ends of the step plate 2 when the step plate is installed, one suspender is a longer double-rod basket-shaped reverse spiral suspender 7, the other suspender is a shorter double-rod basket-shaped reverse spiral suspender 7, the longer double-rod basket-shaped reverse spiral suspender 7 is installed on the first step plate, and the shorter double-rod basket-shaped reverse spiral suspender 7 is installed on the nth step plate.

In this embodiment, the length of the pull rod is three times that of the hanger rods, the pull rods are a left pull rod 81 and a right pull rod 83, and the hanger rods are a left hanger rod 71, a right hanger rod 73, a lower hanger rod 61 and an upper hanger rod 65; the length of the screw pipe 5 is half of the sum of the length of the pull rod and the length of the hanging rod which are connected and fixed, namely the length of the screw pipe 5 is two thirds of the length of the pull rod which is fixed by the screw pipe 5 and is also twice of the length of the hanging rod which is fixed by the screw pipe; at least the upper half part of the upper outer surface of the hanger rod is provided with external threads, and the lower half part of the outer surface of the hanger rod is provided with a smooth rod 66 without external threads; at most one third of the upper outer surface of the pull rod is provided with an external thread which is arranged at the lower part of the pull rod, and the other two thirds of the outer surface of the pull rod is a smooth rod 66 without the external thread; the outer diameter of the smooth rod 66 is smaller than the root diameter of the external thread; in this way the coil 5 can be moved on the smooth rod 66 without screwing and any external thread is not exposed outside the coil 5 when mounted.

The combination length of each group of the suspension rods and the pull rods connected with the step plate 2 is reduced in turn according to the step height of the step plate 2; the length of each step reduction is equal to the height of the support bar 63.

The smooth rod 66 of this embodiment has an outer diameter equal to 98% of the root diameter of the external threads.

Preferably, the outer surface of the hanger rod is provided with external threads.

Example 2.

As shown in the figure, each component in embodiment 1 is mounted, and the mounting method comprises the following steps:

drilling a screw hole in a floor slab 11 according to design requirements; the names of all parts in the construction are set as follows:

the tread 2 closest to the floor 12 in the staircase is called the first tread 21 and thereafter in turn the second 22 and third … … tread and the tread 2 closest to the floor 11 is called the nth tread.

The longer double-bar basket-shaped counter-spiral boom 7 installed on the left side of the first tread plate 21 is referred to as a first double boom 31, and each section thereof is referred to as a first left boom 311, a first bottom bracket 312, and a first right boom 313, respectively; the double-bar zigzag reverse-spiral hanger rods 6 installed on the right side of the first tread plate 21 and the left side of the second tread plate 22 are referred to as second double hanger rods 32, the respective sections of which are referred to as second lower hanger rods 321, second lower bracket rods 322, second support rods 323, second upper bracket rods 324 and second upper hanger rods 325, respectively, and the double-bar zigzag reverse-spiral hanger rods 6 installed on the right side of the n-1 th tread plate and the left side of the n-1 th tread plate, which are referred to as third double hanger rods and fourth double hanger rods … …, respectively, are referred to as nth double hanger rods, the respective sections of which are referred to as nth lower hanger rods, nth lower bracket rods, nth support rods, nth upper bracket rods and nth upper hanger rods, respectively; the shorter double-rod basket-shaped counter-spiral suspender 7 installed on the right side of the nth step plate is called an n +1 th double suspender, and each section of the shorter double-rod basket-shaped counter-spiral suspender is called an n +1 th left suspender, an n +1 th bottom supporting rod and an n +1 th right suspender respectively.

The double-bar basket-shaped reverse spiral pull rod 8 installed on the floor slab 11 above the left side of the first tread plate 21 is called a first double pull rod 41, and each section of the double-bar basket-shaped reverse spiral pull rod is called a first left pull rod 411, a first top beam rod 412 and a first right pull rod 413 respectively; the double-rod basket type counter-spiral pull rod 8 arranged on the floor slab 11 above the right side of the first tread plate 21 and the left side of the second tread plate 22 is called a second double pull rod 42, and is sequentially called a third double pull rod and a fourth double pull rod … … which are arranged on the floor slab 11 above the right side of the nth-1 tread plate and the left side of the nth tread plate, and is called an nth double pull rod; the double-rod basket-shaped reverse spiral pull rod arranged on the floor slab 11 above the right side of the nth step plate is called an n +1 th double pull rod, and each section of the double-rod basket-shaped reverse spiral pull rod is called an n +1 th left pull rod, an n +1 th top beam rod and an n +1 th right pull rod respectively.

The screw pipes attached to the first left boom 311 and the first left rod 411 are a first left screw pipe 511, the screw pipes attached to the first right boom 313 and the first right rod 413 are a first right screw pipe 512, the screw pipes attached to the n +1 th left boom and the n +1 th left rod are sequentially referred to as a second left screw pipe 521 and a second right screw pipe 522 … …, and the screw pipes attached to the n +1 th right boom and the n +1 th right rod are an n +1 th right screw pipe.

The best method is that the installation is carried out from bottom to top, and in the embodiment, the installation of all the stepping plates 2 is carried out at the same time at two ends; firstly, a first double pull rod 41, a second double pull rod 42 … … and a left pull rod 81 and a right pull rod 83 on an n +1 double pull rod are respectively and sequentially inserted from left to right downwards and penetrate through each screw hole on the floor slab 11; and each top beam rod 82 is tightly attached to the upper surface of the floor slab 11, and then the screw pipes 5 provided for each suspension rod and tie rod are completely screwed into the corresponding left tie rod 81 or right tie rod 83 until the external threads on the left tie rod 81 or right tie rod 83 are exposed.

Thirdly, the first step plate 21 is installed, the first double hanger rod 31, namely the first right hanger rod 311 in the longer double-rod basket-shaped reverse spiral hanger rod 7, is inserted upwards and penetrates through the screw rod through hole 23 on the left side of the edge of the first step plate 21, the first bottom bracket rod 312 extends leftwards and abuts against the lower surface of the first step plate 21, the first bottom bracket rod 312 bypasses the left edge of the first step plate 21 and upwards, then the first left hanger rod 311 and the first left pull rod 411 are abutted upwards continuously, and the direction of the screw thread on the external thread of the first left hanger rod 311 and the first left pull rod 411 after abutting is the same; meanwhile, the first right suspension rod 313 is abutted against the first right pull rod 413, and the screw direction of the external screw thread on the abutted first right suspension rod 313 and the first right pull rod 413 is the same; then, the first left solenoid 511 on the first left pull rod 411 is rotated downwards and the first left solenoid 511 is screwed on the first left suspension rod 311 until the left edge of the first step board 21 is abutted, and at the same time, the first right solenoid 512 on the first right pull rod 413 is rotated downwards and the first right solenoid 512 is screwed on the first right suspension rod 313 until the left edge of the first step board 21 is abutted; thus, the butt joint and the connection fixation of the first double pull rod 41 and the first double suspension rod 31 are well installed; at this time the spiral tube 5 supports the tread board 2, the contact position of the suspender and the pull rod is positioned in the middle of the inside of the spiral tube 5, the suspender and the pull rod are both fixed by the spiral tube 5 in a spiral way, the stair may loosen under the vibration of long-term use, because the double suspender 3 and the double pull rod 4 are both connected together, the double suspender 3 and the double pull rod 4 cannot rotate, the rotation is loose and only the spiral tube 5 is possible, but because the spiral tube 5 is longer and the suspender and the pull rod are wrapped in a spiral way, even if the spiral tube rotates, the close connection relation between the suspender and the pull rod cannot be changed, unless the spiral tube 5 rotates upwards completely until the suspender is separated, because the suspender has a certain length, the suspender cannot be separated in a moment, and because of the action of gravity, the spiral tube 5 can descend under the action of gravity after rising, so the spiral tube 5 can not be separated from the suspender basically; in particular, the external threads on the first left suspension rod 311 and the first left pull rod 411 are opposite to the screwing direction of the external threads on the first right suspension rod 313 and the first right pull rod 413, and when the shock is applied, the acting force direction of the first left screw tube 511 and the acting force direction of the first right screw tube 512 are necessarily the same, and at this time, if the first left screw tube 511 tends to be unscrewed upwards, the first right screw tube 512 tends to be screwed downwards; the combination of the left and right fastening lines makes the connection between the suspension rod and the pull rod never loosen and fall off.

Fourthly, inserting a second double suspension rod 32, namely a second lower suspension rod 321 in the double-rod zigzag reverse-spiral suspension rod 6 into and through the screw through hole 23 on the right side of the side portion of the first tread plate 21, extending a second lower supporting rod 322 rightward and abutting against the lower surface of the first tread plate 21, passing a second supporting rod 323 upward around the right side edge of the first tread plate 21, then inserting a second upper suspension rod 325 upward and penetrating through the screw through hole 23 on the left side of the side portion of the second tread plate 22, and extending a second upper supporting rod 324 leftward and abutting against the lower surface of the second tread plate 22; then, the second lower suspension rod 321 is continuously upwards abutted with the second left pull rod 421, and the screw direction of the external screw thread on the abutted second lower suspension rod 321 and the second left pull rod 421 is the same; meanwhile, the second upper suspension rod 325 is butted and abutted against the second right pull rod 423, and the screw direction of the external screw thread on the butted second upper suspension rod 325 and the second right pull rod 423 is the same; then the second left screw 521 on the second left pull rod 421 is rotated downwards and the second left screw 521 is rotated onto the second lower suspension rod 321 until abutting against the right side of the first step board 21, and at the same time, the second right screw 512 on the second right pull rod 423 is rotated downwards and the second right screw 512 is rotated onto the second upper suspension rod 325 until abutting against the left side of the second step board 22.

Fifthly, inserting a third double-suspender, namely a third lower suspender in the double-rod zigzag reverse-spiral suspender into the screw through hole 23 on the right side of the edge of the second step plate, extending the third lower supporting rod rightwards and abutting against the lower surface of the second step plate, enabling the third supporting rod to extend upwards around the edge of the right side of the second step plate, then inserting a third upper suspender upwards and penetrating through the screw through hole 23 on the left side of the edge of the third step plate, and extending the third upper supporting rod leftwards and abutting against the lower surface of the third step plate; then, the third lower suspender and the third left pull rod are continuously upwards butted and tightly abutted, and the screw direction of the external screw thread on the butted third lower suspender and the third left pull rod is the same; meanwhile, the third upper suspender is butted and abutted against the third right pull rod, and the screw direction of the external screw thread on the butted third upper suspender is the same as that of the external screw thread on the third right pull rod; and then, a third left screw pipe on the third left pull rod is rotated downwards, the third left screw pipe is rotated to the third lower suspender until the third left screw pipe abuts against the right side of the second step plate, and simultaneously, a third right screw pipe on the third right pull rod is rotated downwards, the third right screw pipe is rotated downwards, and the third right screw pipe is rotated to the third upper suspender until the third right screw pipe abuts against the left side of the third step plate.

Sixthly, sequentially installing the double-rod zigzag reverse spiral hanger rods 6 and the step plate 2 until the nth double hanger rod, namely the nth lower hanger rod in the last double-rod zigzag reverse spiral hanger rod 6, is inserted into and penetrates through the screw through hole 23 on the right side of the edge of the nth-1 step plate, enabling the nth lower support rod to extend rightwards and abut against the lower surface of the nth-1 step plate, enabling the nth support rod to wind the edge of the right side of the nth-1 step plate upwards, then inserting the nth upper hanger rod upwards and penetrating through the screw through hole 23 on the left side of the edge of the nth step plate, and enabling the nth upper support rod to extend leftwards and abut against the lower surface of the nth step plate; then continuing to upwards butt and tightly abut the nth lower suspender and the nth left pull rod, and enabling the screw direction of the external threads on the butted nth lower suspender and the nth left pull rod to be the same; meanwhile, the nth upper suspender is butted and abutted with the nth right pull rod, and the screw direction of the external screw thread on the butted nth upper suspender and the nth right pull rod is the same; and then the nth left solenoid on the nth left pull rod is rotated downwards and is rotated to the nth lower suspender until the nth left solenoid abuts against the right side of the nth-1 step plate, and the nth right solenoid on the nth right pull rod is rotated downwards and is rotated to the nth upper suspender until the nth right solenoid abuts against the left side of the nth step plate.

Finally, inserting the (n + 1) th left suspension rod in the (n + 1) th double suspension rod, namely the shorter double-rod basket-shaped reverse spiral suspension rod 7 upwards into and through the screw rod through hole 23 on the right side of the edge of the (n + 1) th stepping plate, extending the (n + 1) th bottom support rod rightwards and abutting against the lower surface of the (n + 1) th stepping plate, enabling the (n + 1) th bottom support rod to wind the right edge of the (n + 1) th stepping plate upwards, continuing to upwards abutting the (n + 1) th left suspension rod and the (n + 1) th left pull rod, and enabling the abutting direction of the external threads on the (n + 1) th left suspension rod and the (n + 1) th left pull rod to be the same; meanwhile, the (n + 1) th right suspension rod is butted and abutted with the (n + 1) th right pull rod, and the screw directions of the external threads on the (n + 1) th right suspension rod and the (n + 1) th right pull rod after butt joint are the same; then, the (n + 1) th left screw pipe on the (n + 1) th left pull rod is rotated downwards, the (n + 1) th left screw pipe is connected to the (n + 1) th left suspender in a rotating manner until the left side of the nth step plate is tightly propped, and meanwhile, the (n + 1) th right screw pipe on the (n + 1) th right pull rod is rotated downwards, the (n + 1) th right screw pipe is rotated downwards, and the (n + 1) th right screw pipe is connected to the (n + 1) th right suspender in a rotating manner until the right edge of the nth step plate is tightly propped; therefore, the n +1 th double pull rod and the n +1 th double suspension rod are butted, connected and fixed, and all the step boards are installed. The n-1 groups of double-rod zigzag reverse spiral suspenders connect the n step plates end to end in sequence, so that each step plate becomes a whole in the whole stair, and the firmness and the safety are improved.

Example 3.

As shown in the drawings, the base frame member 9 may be additionally provided on the basis of embodiment 2, the first double hanger bar 31 and the first double pull rod 41 are removed, and the base frame member 9 is installed between the floor 12 and the first step plate 21 instead of the base frame member 9 for supporting the first step plate 21.

The step plate 2 is widened, a side groove 24 is dug on a right side extension line of a connecting line of the screw through hole 23 on the right side of the step plate 2, and the support rod 63 passes through the side groove 24 to be upward when the step plate is installed.

A step pad 25 is additionally provided, and the step pad 25 is used between the step board and each of the support rods when each step board 2 is installed.

Claims (10)

1. A screwed pipe muff-coupling type suspended landscape stair comprises a floor slab, a floor, a suspended component and a step plate, and is characterized in that the suspended component comprises a double-suspender, a double-pull rod and a screwed pipe; the double-suspension rod comprises a double-rod frame-shaped reverse-spiral suspension rod at the head and the tail and a plurality of double-rod zigzag reverse-spiral suspension rods in the middle, and the double-pull rods are double-rod frame-shaped reverse-spiral pull rods; the double-rod zigzag reverse spiral suspender is a planar frame rod consisting of a lower suspender, a lower supporting rod, a supporting rod, an upper supporting rod and an upper suspender which are sequentially and directly connected in a right-angle bent shape, wherein the lower suspender and the upper suspender are parallel to each other, the ends of the lower suspender and the upper suspender face to the same direction, external threads are respectively arranged at the upper parts of the lower suspender and the upper suspender, and the spiral directions of the external threads on the lower suspender and the external threads on the upper suspender are opposite; the double-rod basket type reverse spiral suspender is a planar hack lever formed by a left suspender, a bottom supporting rod and a right suspender which are sequentially and directly connected in a right-angle bent shape, wherein the left suspender and the right suspender are parallel to each other, the end heads of the left suspender and the right suspender face to the same direction, external threads are respectively arranged at the upper parts of the left suspender and the right suspender, and the spiral directions of the external threads on the left suspender and the external threads on the right suspender are opposite; the grid-shaped reverse spiral pull rod is a planar frame rod formed by a left pull rod, a top beam rod and a right pull rod which are sequentially and directly connected in a right-angle bent shape, wherein the left pull rod and the right pull rod are parallel to each other, the end heads of the left pull rod and the right pull rod face to the same direction, external threads are respectively arranged at the lower parts of the left pull rod and the right pull rod, and the spiral directions of the external threads on the left pull rod and the external threads on the right pull rod are opposite; namely, the double-rod basket type reverse spiral suspender has the same structure as the double-rod basket type reverse spiral pull rod, and only the directions of the pull rod and the suspender are opposite; the screw pipe is internally provided with internal threads, and the internal threads of the screw pipe are matched with the external threads; the pedal is in a rectangular block shape, and two stud through holes are drilled in the edge parts of two ends of the pedal plate respectively.

2. The coil-in-tube hanging landscape staircase of claim 1, wherein in each coil-in-tube hanging landscape staircase, there are n step plates; the double-rod basket type reverse spiral pull rod is provided with n +1 groups, each group comprises two groups, and one group is arranged at each end of two ends of the step plate when the step plate is installed; the double-rod zigzag reverse spiral hanger rods are provided with n-1 groups, each group comprises two double-rod zigzag reverse spiral hanger rods, and the double-rod zigzag reverse spiral hanger rods are respectively arranged at two ends of the step plate when being installed, and one is arranged at each end; the double-rod basket type reverse spiral hanger rods are provided with two groups, each group comprises two, and one hanger rod is arranged at each end of two ends of the step plate during installation.

3. The coil-socketed suspended landscape staircase according to claim 2, wherein the length of the pull rod is three times of the length of the hanging rod, the length of the coil is half of the sum of the length of the pull rod and the length of the hanging rod to be connected and fixed, namely the length of the coil is two thirds of the length of the pull rod fixed by the coil and is two times of the length of the hanging rod fixed by the coil; at least the upper half part of the upper outer surface of the suspender is provided with external threads, and the lower half part of the outer surface of the suspender is provided with a smooth rod without the external threads; at most one third of the outer surface of the upper pull rod is provided with an external thread which is arranged at the lower part of the pull rod, and the other two thirds of the outer surface of the upper pull rod is provided with a smooth rod without the external thread; the outer diameter of the smooth rod is smaller than the root diameter of the external thread.

4. The coil-socketed suspended landscape staircase according to claim 3, wherein the smooth rod has an outer diameter equal to 98% of the root diameter of the external thread.

5. The coil-socketed suspended landscape staircase of claim 4, wherein the exterior surface of the hanger bar is provided with external threads throughout.

6. The coil-socketed suspended landscape staircase according to claims 1-5, characterized in that the installation method comprises the following steps:

drilling a screw hole on a floor slab according to design requirements;

firstly, inserting a left pull rod and a right pull rod on a first double pull rod, a second double pull rod … … and an n +1 double pull rod from left to right and downwards in sequence and penetrating through each screw rod hole on the floor slab; enabling each top beam rod to be tightly attached to the upper surface of the floor slab, and then completely screwing each equipped screwed pipe into each corresponding left pull rod or right pull rod until threads on the left pull rod or right pull rod are exposed;

thirdly, inserting a first double-suspension rod, namely a first right suspension rod in the double-rod basket type reverse spiral suspension rod, upwards into the screw through hole in the left side of the edge of the first step plate, extending the first bottom support rod leftwards and tightly abutting against the lower surface of the first step plate, enabling the first bottom support rod to upwards surround the left edge of the first step plate, then continuing upwards enabling the first left suspension rod to be abutted against the first left pull rod, and enabling the screw direction of the external screw thread on the first left suspension rod and the screw direction of the external screw thread on the first left pull rod after the abutting against to be the same; meanwhile, the first right suspension rod is butted and abutted with the first right pull rod, and the screw direction of the external screw thread on the butted first right suspension rod is the same as that of the external screw thread on the butted first right suspension rod; then, a first left screw pipe on the first left pull rod is rotated downwards, the first left screw pipe is rotated to the first left suspension rod until the left edge of the first stepping board is tightly abutted, and meanwhile, a first right screw pipe on the first right pull rod is rotated downwards, the first right screw pipe is rotated to the first right suspension rod until the left side of the first stepping board is tightly abutted;

fourthly, inserting a second double-suspension rod, namely a second lower suspension rod in the double-rod zigzag reverse spiral suspension rod into and penetrating through a screw rod through hole on the right side of the edge of the first tread board, extending the second lower supporting rod rightwards and abutting against the lower surface of the first tread board, enabling the second supporting rod to wind the right edge of the first tread board upwards, then inserting the second upper suspension rod upwards and penetrating through a screw rod through hole on the left side of the edge of the second tread board, and extending the second upper supporting rod leftwards and abutting against the lower surface of the second tread board; then continuing to upwards butt and tightly abut the second lower suspender and the second left pull rod, and enabling the screw direction of the external threads on the butted second lower suspender and the second left pull rod to be the same; meanwhile, the second upper suspender is butted and abutted against the second right pull rod, and the screw direction of the external screw thread on the butted second upper suspender is the same as that of the external screw thread on the second right pull rod; then a second left screw pipe on a second left pull rod is rotated downwards and is screwed on a second upper suspender until the second left screw pipe abuts against the right side of the first step plate, and simultaneously a second right screw pipe on a second right pull rod is rotated downwards and is screwed on the second upper suspender until the second right screw pipe abuts against the left side of the second step plate;

fifthly, inserting a third double-suspender, namely a third lower suspender in the double-rod zigzag reverse-spiral suspender into the screw through hole on the right side of the edge of the second step plate, extending the third lower supporting rod rightwards and abutting against the lower surface of the second step plate, enabling the third supporting rod to wrap the right edge of the second step plate upwards, then inserting the third upper suspender upwards and penetrating through the screw through hole on the left side of the edge of the third step plate, and extending the third upper supporting rod leftwards and abutting against the lower surface of the third step plate; then, the third lower suspender and the third left pull rod are continuously upwards butted and tightly abutted, and the screw direction of the external screw thread on the butted third lower suspender and the third left pull rod is the same; meanwhile, the third upper suspender is butted and abutted against the third right pull rod, and the screw direction of the external screw thread on the butted third upper suspender is the same as that of the external screw thread on the third right pull rod; then, a third left solenoid on a third left pull rod is rotated downwards and is screwed on a third upper suspender until the third left solenoid abuts against the right side of the second step plate, and simultaneously, a third right solenoid on a third right pull rod is rotated downwards and is screwed on the third upper suspender until the third right solenoid abuts against the left side of the third step plate;

sixthly, sequentially installing the double-rod zigzag reverse spiral hanging rods and the step plate until the nth double hanging rod, namely the nth lower hanging rod in the last double-rod zigzag reverse spiral hanging rod, is inserted into and penetrates through the screw rod through hole in the right side of the edge of the nth-1 step plate, enabling the nth lower supporting rod to extend rightwards and abut against the lower surface of the nth-1 step plate, enabling the nth supporting rod to wind the edge of the right side of the nth-1 step plate upwards, then inserting the nth upper hanging rod upwards and penetrating through the screw rod through hole in the left side of the edge of the nth step plate, and enabling the nth upper supporting rod to extend leftwards and abut against the lower surface of the nth step plate; then continuing to upwards butt and tightly abut the nth lower suspender and the nth left pull rod, and enabling the screw direction of the external threads on the butted nth lower suspender and the nth left pull rod to be the same; meanwhile, the nth upper suspender is butted and abutted with the nth right pull rod, and the screw direction of the external screw thread on the butted nth upper suspender and the nth right pull rod is the same; then, the nth left solenoid on the nth left pull rod is rotated downwards and is rotated to the nth upper suspender until the nth left solenoid abuts against the right side of the nth-1 step plate, and the nth right solenoid on the nth right pull rod is rotated downwards and is rotated to the nth upper suspender until the nth right solenoid abuts against the left side of the nth step plate;

finally, inserting the (n + 1) th double-suspender, namely the (n + 1) th left suspender in the other double-rod basket-shaped reverse spiral suspender upwards into the screw through hole on the right side of the edge of the (n + 1) th stepping plate, extending the (n + 1) th bottom supporter rod rightwards and tightly abutting against the lower surface of the (n + 1) th stepping plate, enabling the (n + 1) th bottom supporter rod to wind the right edge of the (n + 1) th stepping plate upwards, then continuing to upwards butt the (n + 1) th left suspender with the (n + 1) th left pull rod and enabling the butted (n + 1) th left suspender and the (n + 1) th left pull rod to have the same spiral direction of the external thread; meanwhile, the (n + 1) th right suspension rod is butted and abutted with the (n + 1) th right pull rod, and the screw directions of the external threads on the (n + 1) th right suspension rod and the (n + 1) th right pull rod after butt joint are the same; then, the (n + 1) th left screw pipe on the (n + 1) th left pull rod is rotated downwards, the (n + 1) th left screw pipe is connected to the (n + 1) th left suspender in a rotating manner until the left side of the nth step plate is tightly propped, and meanwhile, the (n + 1) th right screw pipe on the (n + 1) th right pull rod is rotated downwards, the (n + 1) th right screw pipe is rotated downwards, and the (n + 1) th right screw pipe is connected to the (n + 1) th right suspender in a rotating manner until the right edge of the nth step plate is tightly propped; therefore, the n +1 th double pull rod and the n +1 th double suspension rod are butted, connected and fixed, and all the step boards are installed.

7. The screwed pipe sleeved type suspended landscape staircase according to claim 6, wherein the step plate is widened, a side groove is dug on the right side extension line of the connection line of the screw through hole on the right side of the step plate, and the support rod passes through the side groove upwards when being installed.

8. The coil-in-tube suspended landscape staircase of claim 7, further comprising a tread pad, the tread pad being used when each tread plate is installed.

9. The screw-in suspended landscape staircase of claim 8, wherein a base frame member is additionally provided, the first double hanger bar and the first double pull bar are removed and replaced with a base frame member installed between the floor panel and the first step panel for supporting the first step panel.

10. The coil-socketed suspended landscape staircase of claim 9, wherein the tread plate is a metal tread or a wood tread made of a metal material or a wood material.

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