CN215407021U - Straight spiral combined stair with adjustable assembly - Google Patents

Straight spiral combined stair with adjustable assembly Download PDF

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Publication number
CN215407021U
CN215407021U CN202120684226.3U CN202120684226U CN215407021U CN 215407021 U CN215407021 U CN 215407021U CN 202120684226 U CN202120684226 U CN 202120684226U CN 215407021 U CN215407021 U CN 215407021U
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CN
China
Prior art keywords
stair
rotary
vertical
assembled
main beam
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Expired - Fee Related
Application number
CN202120684226.3U
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Chinese (zh)
Inventor
陈昊基
陈钜英
袁锋华
韩永刚
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Guangzhou Jinjia Xiaoyue Steel Structure Engineering Co ltd
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Guangzhou Jinjia Xiaoyue Steel Structure Engineering Co ltd
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Priority to CN202120684226.3U priority Critical patent/CN215407021U/en
Application granted granted Critical
Publication of CN215407021U publication Critical patent/CN215407021U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the field of civil construction, in particular to an assembled and adjustable vertical rotation combined stair, which comprises a rotary stair, a vertical shaft and a vertical shaft, wherein the vertical shaft is arranged on the vertical shaft; the utility model discloses a straight ladder, which comprises a main stair beam, a connecting plate and a straight ladder step assembly, wherein the connecting plate is detachably arranged at each of two ends of the main stair beam, the straight ladder step assembly is detachably arranged on the main stair beam, and a spiral stair is positioned at one end of the straight ladder to form a straight spiral combined stair.

Description

Straight spiral combined stair with adjustable assembly
Technical Field
The utility model relates to the field of civil construction, in particular to an assembled and adjustable vertical-rotation combined stair.
Background
Because of the complex situation of job site, simple spiral staircase and vertical ladder can not satisfy all demands, often need use one section rotation and one section straight stair, but the current market vertical ladder is with the disjunctor welding of spiral ladder combination all, and the material is cut out on the spot mostly, the installation is accomplished in the welding, or according to the data that the guest provided in the mill, transport to the field installation again after whole product welding, the shortcoming of this kind of mode is that workman man-hour is more, can not go the height of nimble regulation marking time according to the scene, the angle of girder is fixed unchangeable, it is fixed that also not independent components of a whole that can function independently is installed to the collocation of the vertical spiral ladder, bulky inconvenient transportation, it is troublesome to dismantle when the vertical spiral staircase is not used or changes.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an assembled and adjustable vertical spiral combined stair and aims to solve the technical problems that the vertical spiral stair cannot be flexibly assembled and disassembled and is troublesome to transport and install in the prior art.
In order to achieve the purpose, the utility model provides an assembled and adjustable vertical-rotation combined stair, which comprises a rotary stair, a vertical shaft, a rotary stepping assembly and a vertical shaft, wherein the rotary stepping assembly is detachably arranged on the rotary vertical shaft;
the vertical ladder comprises a stair main beam, a connecting plate and a vertical ladder step assembly, wherein the two ends of the stair main beam are detachably mounted on the connecting plate, the vertical ladder step assembly is detachably mounted on the stair main beam, and the rotary ladder is located at one end of the vertical ladder to form a vertical rotary combined ladder. Simple structure reduces area.
Preferably, the rotary stepping assembly further comprises an installation sleeve, the installation sleeve is sleeved on the rotary upright post and is fixed by a first fixing piece, and the installation sleeve and the rotary upright post are detachably installed. The loading and unloading are convenient, the space utilization rate is improved, and the transportation cost is reduced.
Preferably, rotatory subassembly of marking time still includes rotatory support of marking time and rotatory flier, the one end of rotatory support of marking time is installed on the installation cover, rotatory flier detachably install rotatory flier is last. Convenient transportation, also can be changed into the flier of various materials according to particular case and satisfy the demand.
Preferably, the thickness of one end of the rotary stepping bracket close to the mounting sleeve is H1, and the thickness of one end of the rotary stepping bracket far away from the mounting sleeve is H2, H1> H2. The stability and the security of rotatory subassembly installation of marking time are improved.
Preferably, the width of one end of the rotary stepping bracket close to the mounting sleeve is W1, the width of one end of the rotary stepping bracket far away from the mounting sleeve is W2, and W1< W2. Provides the stepping width meeting the requirement, can effectively reduce the weight of the rotary stepping assembly and is convenient to transport.
Preferably, the two ends of the stair main beam are provided with main ladder joints, the connecting plate is provided with connecting parts, the main ladder joints are hinged to the connecting parts, so that the stair main beam and the connecting plate can be detachably mounted, and the stair main beam and the connecting plate can rotate mutually. The stair main beam can be adjusted according to the field condition, and is more humanized.
Preferably, a first mounting hole for a bolt to pass through is formed in the main ladder joint, a second mounting hole corresponding to the first mounting hole is formed in the connecting portion, and the bolt sequentially passes through the first mounting hole and the second mounting hole to detachably connect the main girder with the connecting plate. The bolt connection is a detachable fixed connection with simple structure, reliable connection and convenient assembly and disassembly.
Preferably, the vertical ladder step assembly comprises a step support, a bottom plate and a step plate, wherein the bottom plate is detachably installed on the step plate, the step support is installed on the bottom plate, and the step support is detachably installed on the main beam of the ladder. The step plate is detachably mounted, is convenient to transport, and can be replaced by step plates made of various materials according to specific conditions to meet requirements.
Preferably, the step support is provided with a connecting hole for the second fixing piece to pass through, so that the second fixing piece can fix the step support on the main beam of the stair. The threaded connection is a fixed connection with simple structure, reliable connection and convenient assembly and disassembly.
Preferably, the vertical ladder further comprises vertical ladder cuboids for supporting the main ladder beam. Providing support for the stair main beam.
The utility model relates to an assembled and adjustable vertical-rotation combined stair which has the following beneficial effects:
1. when the floors are higher or the floor area is limited, the combination of the straight ladder and the rotary ladder is used, the floor area can be saved, the angle of the straight ladder can be kept at a perfect angle, and people can walk comfortably and smoothly when going upstairs and downstairs.
2. The height and width of each step can be flexibly adjusted according to the requirements of customers and the change of field sizes during the installation process.
3. The bottom of the vertical ladder and the floor are installed in an independent upright column mode, so that the vertical ladder is solid and stable, and the high bottom of the upright column can be produced according to the field environment.
4. The vertical ladder and the rotary ladder are separately installed and fixed, and the firmness and the stability are ultra-strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an assembled and adjustable vertical-rotation assembled staircase according to the present invention;
FIG. 2 is a schematic structural view of a rotary column according to the present invention;
FIG. 3 is an exploded view of the rotary stepping assembly of the present invention;
FIG. 4 is a schematic structural view of the stair main beam of the present invention;
FIG. 5 is a schematic structural view of a connecting plate according to the present invention;
FIG. 6 is an exploded view of the vertical stair tread assembly of the present invention.
FIG. 7 is a front view of the rotary step support of the present invention;
FIG. 8 is a top view of the rotary stepping stand according to the present invention.
The reference numbers illustrate:
the stair comprises 1-rotating upright posts, 11-mounting holes, 2-rotating step components, 21-mounting sleeves, 22-rotating step supports, 23-rotating step plates, 3-stair main beams, 31-main stair joints, 311-first mounting holes, 4-connecting plates, 41-connecting parts, 411-second mounting holes, 412-positioning holes, 5-straight step components, 51-step supports, 511-fixing holes, 52-bottom plates, 521-connecting holes, 53-step plates and 6-straight step cubic columns.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 8, an assembled and adjustable vertical-rotation combined stair comprises:
the rotary stair comprises a rotary upright post 1 and a rotary stepping assembly 2, wherein the rotary stepping assembly 2 is detachably arranged on the rotary upright post 1;
the vertical ladder comprises a stair main beam 3, a connecting plate 4 and a vertical ladder stepping assembly 5, wherein the two ends of the stair main beam 3 are detachably mounted on the connecting plate 4, the vertical ladder stepping assembly 5 is detachably mounted on the stair main beam 3, and the spiral stair is located at one end of the vertical ladder to form a vertical spiral combined stair.
The rotary stair comprises a rotary upright post 1 and rotary stepping assemblies 2, wherein the rotary stepping assemblies 2 are installed on the rotary upright post 1, the rotary stepping assemblies 2 are used for providing a space for a person to stand, specifically, the rotary upright post 1 is a strip metal cylinder, the interior of the rotary upright post is hollow, cement can be poured in the inner space of the rotary upright post 1 when necessary, the strength and firmness of the rotary upright post 1 are enhanced, and a plurality of rotary stepping assemblies 2 are uniformly distributed on the rotary upright post 1;
the stair main beam 3 is a rectangular box beam in a long strip shape, the connecting plates 4 are detachably mounted at two ends of the stair main beam 3, and specifically, the two ends of the stair main beam 3 are respectively provided with one connecting plate 4; the vertical ladder stepping assemblies 5 are detachably arranged on the stair main beam 3, specifically, a plurality of vertical ladder stepping assemblies 5 are equidistantly arranged on the stair main beam 3, and the distance between the vertical ladder stepping assemblies 5 is adjusted according to specific conditions; when a pair of vertical ladders and a pair of spiral ladders are needed at a higher floor, the vertical ladders can be installed firstly and then the spiral ladders can be installed, and the spiral ladders can be installed firstly; when a pair of straight ladders and two pairs of spiral ladders or two pairs of straight ladders and a pair of spiral ladders are needed, the pair of spiral ladders can be installed firstly, then the pair of straight ladders is installed, and finally the spiral ladders are installed, or the pair of straight ladders is installed firstly, then the pair of spiral ladders is installed, and finally the pair of straight ladders is installed, and how many straight ladders and the spiral ladders need to be installed according to specific conditions.
Preferably, the assembled adjustable vertical-rotation combined stair can be made of steel or aluminum.
This technical scheme, rotatory stair are located the one end of vertical ladder and in order to form vertical rotation combination stair, specifically for rotatory stair installation subaerial, the one end of vertical ladder is located the highest rotatory subassembly 2 next door of marking time of rotatory stair, or the vertical ladder is installed subaerial, and rotatory stair bottommost rotatory subassembly 2 of marking time is located the highest subassembly 5 next door of marking time of vertical ladder. When the height between the floor is higher, only use the vertical ladder, or the angle of vertical ladder is very big, is not conform to human mechanics, or the vertical ladder is done very long, but can occupy very big area, rotatory stair are added to this scheme, when the height between the floor is higher like this, just can add one end rotatory stair at vertical ladder front end or tail end, just so can make the angle of vertical ladder keep one and let the people keep comfortable angle, also can not occupy too big area simultaneously.
Further, the rotary stepping assembly 2 further comprises an installation sleeve 21, the installation sleeve 21 is sleeved on the rotary upright post 1 and is fixed by a first fixing piece, and the installation sleeve 21 and the rotary upright post 1 are detachably installed.
The rotary stepping assembly 2 is provided with mounting sleeves 21 matched with the rotary upright post 1, specifically, a plurality of mounting sleeves 21 are equidistantly sleeved on the rotary upright post 1, the mounting sleeves 21 are fixed on the rotary upright post 1 by using first fixing pieces, the first fixing pieces are bolts, the threaded connection is detachable and fixed connection which is widely used, and the rotary stepping assembly has the advantages of simple structure, reliable connection, convenience in assembly and disassembly and the like.
Further, the rotary stepping assembly 2 further comprises a rotary stepping support 22 and a rotary stepping plate 23, one end of the rotary stepping support 22 is mounted on the mounting sleeve 21, and the rotary stepping plate 23 is detachably mounted on the rotary stepping support 22.
The rotary stepping assembly 2 comprises a rotary stepping support 22 and a rotary stepping plate 23, one end of the rotary stepping support 22 is installed on the installation sleeve 21, the whole shape of the rotary stepping support 22 is a vertical concave structure, the rotary stepping plate 23 is detachably installed on a groove opening of the rotary stepping support 22 through a fixing piece, and the rotary stepping plate 23 can cover a groove on the whole rotary stepping support 22. Rotatory support 22 of marking time provides a platform that supplies rotatory flier 23 to install, and rotatory flier 23 provides a platform that lets the people stand up, and when the transportation, can take apart rotatory support 22 of marking time and rotatory flier 23, and the transportation of part reduces and takes up an area of the space, improves conveying efficiency.
Further, the thickness of the end of the rotary stepping bracket 22 close to the mounting sleeve 21 is H1, and the thickness of the end of the rotary stepping bracket 22 far from the mounting sleeve 21 is H2, H1> H2.
One side of the rotary stepping support 22 close to the root of the mounting sleeve 21 is used as a main stress point of the rotary stepping assembly 2, and the form that one end close to the mounting sleeve 21 is thick and the other end far away from the mounting sleeve 21 is thin is selected, so that the rotary stepping support 22 has better rigidity and bearing capacity for resisting bending moment, and the stability and the safety of the rotary stepping assembly 2 mounted on the rotary upright post 1 are improved.
Further, the width of the end of the rotary stepping bracket 22 close to the mounting sleeve 21 is W1, the width of the end of the rotary stepping bracket 22 far away from the mounting sleeve 21 is W2, W1< W2.
The rotary stepping support 22 adopts the form that the rotary stepping support 22 is close to the width of one end of the mounting sleeve 21 is W1, the rotary stepping support 22 is far away from the width of one end of the mounting sleeve 21 is W2, W1< W2, so that the rotary stepping support 22 can adapt to the rotary radian of a rotary stair, the stepping width meeting the requirement is provided, meanwhile, the weight of the rotary stepping assembly 2 can be effectively reduced, and the transportation is convenient.
Further, the both ends of stair girder 3 are equipped with main ladder and connect 31, be equipped with connecting portion 41 on the connecting plate 4, main ladder connect 31 with connecting portion 41 is articulated, makes stair girder 3 with the installation of connecting plate 4 detachable, stair girder 3 with can rotate each other between the connecting plate 4.
The main ladder joints 31 are arranged at two ends of the stair main beam 3, the connecting plate 4 is provided with the connecting part 41, and the main ladder joints 31 are hinged to the connecting part 41, so that the stair main beam 3 and the connecting plate 4 are detachably mounted together.
More preferably, be equipped with two locating holes 412 on the connecting portion 41 on the connecting plate 4, two locating holes 412 all distribute around second mounting hole 411, connecting portion 41 of connecting plate 4 and the main ladder of stair girder 3 connect 31 combination portion can leave a bit clearance, the tight fit of possible accomplishing, the effect of leaving a bit clearance can be used for adjusting stair girder 3 and connecting plate 4 combination back stair girder 3 is parallel, be equipped with the third mounting in the locating hole 412, the effect of third mounting is used for spacingly, guarantee that the girder steel is parallel, the stair can not rock about when making someone walk on the stair, and is safer.
Further, a first mounting hole 311 for a bolt to pass through is formed in the main ladder joint 31, a second mounting hole 411 corresponding to the first mounting hole 311 is formed in the connecting portion 41, and the bolt sequentially passes through the first mounting hole 311 and the second mounting hole 411 to detachably connect the main girder 3 with the connecting plate 4.
Be equipped with main ladder on the stair girder 3 and connect 31, main ladder connects and is equipped with the first mounting hole 311 that supplies the bolt to pass on 31, be equipped with connecting portion 41 on the connecting plate 4, be equipped with on connecting portion 41 with the second mounting hole 411 that first mounting hole 311 corresponds, the bolt passes in proper order first mounting hole 311 with second mounting hole 411 makes stair girder 3 with the installation of connecting plate 4 detachable. Stair girder 3 and connecting plate 4 are bolted connection, and bolted connection is a widely used detachable fixed connection, simple structure, connect reliably, install and remove the convenience, when dismantling, only need screw down the nut just can dismantle, avoids large-scale screw hole by on the connecting piece to damage, is applicable to the building site erection joint.
Further, the vertical ladder step assembly 5 comprises a step support 51, a bottom plate 52 and a step plate 53, wherein the bottom plate 52 is detachably installed on the step plate 53, the step support 51 is installed on the bottom plate 52, and the step support 51 is detachably installed on the main stair beam 3.
The tread assembly 5 is designed to comprise a tread bracket 51, a bottom plate 52 and a tread plate 53, wherein the tread bracket 51 is detachably connected with the main beam 3, the bottom plate 52 is arranged at one end of the tread bracket 51 far away from the main beam 3, a space for installing the tread plate 53 is provided right above the tread bracket 51, and the tread plate 53 is detachably arranged on the bottom plate 52.
Preferably, the base plate 52 is welded to the step bracket 51. The welding is a connecting method widely adopted at present, has strong adaptability to geometric shapes, is economical in material consumption and does not weaken the section; the manufacturing and processing are convenient, and automatic operation can be realized; the connection has good tightness and large structural rigidity. The connection performance is good. The plate, the section or the forge piece can be conveniently combined and welded according to the requirements, and meanwhile, different shapes and sizes, even different materials can be connected through welding, so that the aims of reducing weight, saving materials, optimizing resources and the like are fulfilled. The welding structure has the advantages of high rigidity, good integrity, various welding methods and wide adaptability of the welding process. The welding production can adapt to different requirements and batch production.
Preferably, the bottom plate 52 is provided with a connecting hole 521 for a second fixing member to pass through so as to fix the step plate 53 on the bottom plate 52. The threaded connection is a detachable fixed connection which is widely used, and has the advantages of simple structure, reliable connection, convenient assembly and disassembly and the like.
Furthermore, the step support 51 is provided with a connection hole 521 for a second fixing member to pass through, so that the second fixing member can fix the step support 51 on the main beam 3.
The connecting holes 521 are equidistantly formed in the step support 51, when the stair is installed, the step support 51 is clamped on the stair main beam 3, the second fixing piece penetrates through the connecting holes 521, the step support 51 is fixed on the stair main beam 3, specifically, the connecting holes 521 are equidistantly formed in the step support 51, and the second fixing piece is flexibly selected to be in the corresponding connecting hole 521 according to the step pitch of a user in the installation process so as to meet the step pitch of the user.
Further, the vertical ladder also comprises vertical ladder cuboids 6 for supporting the main ladder beam 3.
The cube post 6 of straight ladder is the rectangle case roof beam of a rectangular shape form, because the straight ladder is installed in rotatory stair's high one end, when the floor is higher, the one end of straight ladder is connected on the wall body of higher floor, and the other end is unsettled, and cube post 6 of straight ladder is just for the straight ladder to be one to support fixedly, specifically is that the one end of cube post 6 of straight ladder is provided with connecting plate 4, and the other end is installed subaerial, and the main ladder of 3 one ends of stair girder connects 31 and is articulated with the connecting plate 4 of installing on cube post 6 of straight ladder. The vertical ladder cube 6 can be mounted at any position on the main beam 3 of the ladder.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides an equipment adjustable vertical rotation combination stair which characterized in that includes:
the rotary stair comprises a rotary upright post (1) and a rotary stepping assembly (2), wherein the rotary stepping assembly (2) is detachably mounted on the rotary upright post (1);
the vertical ladder comprises a stair main beam (3), a connecting plate (4) and a vertical ladder step assembly (5), wherein the connecting plate (4) is detachably mounted at the two ends of the stair main beam (3), the vertical ladder step assembly (5) is detachably mounted on the stair main beam (3), and the spiral stair is located at one end of the vertical ladder to form a vertical spiral combined stair.
2. The assembled and adjustable vertical-rotation combined stair as claimed in claim 1, wherein the rotary stepping assembly (2) further comprises a mounting sleeve (21), the mounting sleeve (21) is sleeved on the rotary upright post (1) and fixed by a first fixing member, and the mounting sleeve (21) and the rotary upright post (1) are detachably mounted.
3. An assembled and adjustable vertical spiral combination stair as claimed in claim 2, wherein the rotary step assembly (2) further comprises a rotary step support (22) and a rotary step plate (23), one end of the rotary step support (22) is mounted on the mounting sleeve (21), and the rotary step plate (23) is detachably mounted on the rotary step support (22).
4. The assembled and adjustable vertical-rotation assembled stair as claimed in claim 3, wherein the thickness of the end of the rotary step support (22) close to the mounting sleeve (21) is H1, and the thickness of the end of the rotary step support (22) far from the mounting sleeve (21) is H2, H1> H2.
5. The assembled and adjustable vertical-rotation assembled stair as claimed in claim 3, wherein the width of the end of the rotary step support (22) close to the mounting sleeve (21) is W1, the width of the end of the rotary step support (22) far from the mounting sleeve (21) is W2, and W1< W2.
6. An assembled and adjustable vertical-rotation combined stair according to claim 1, wherein main stair joints (31) are arranged at two ends of the stair main beam (3), connecting portions (41) are arranged on the connecting plates (4), the main stair joints (31) are hinged to the connecting portions (41), so that the stair main beam (3) and the connecting plates (4) can be detachably mounted, and the stair main beam (3) and the connecting plates (4) can rotate mutually.
7. An assembled and adjustable vertical-rotation combined stair according to claim 6, wherein the main stair joint (31) is provided with a first mounting hole (311) for a bolt to pass through, the connecting portion (41) is provided with a second mounting hole (411) corresponding to the first mounting hole (311), and the bolt passes through the first mounting hole (311) and the second mounting hole (411) in sequence to detachably connect the stair main beam (3) and the connecting plate (4).
8. An assembled and adjustable vertical spiral combination stair as claimed in claim 6, wherein the vertical step tread assembly (5) comprises a tread bracket (51), a bottom plate (52) and a tread plate (53), the bottom plate (52) is detachably mounted on the tread plate (53), the tread bracket (51) is mounted on the bottom plate (52), and the tread bracket (51) is detachably mounted on the main stair beam (3).
9. The assembled and adjustable vertical-rotation combined stair as claimed in claim 8, wherein the step support (51) is provided with a connecting hole (521) for a second fixing member to pass through so that the second fixing member can fix the step support (51) on the stair main beam (3).
10. An assembled and adjustable vertical spiral combination stair according to claim 1, further comprising vertical stair cuboids (6) for supporting the stair main beam (3).
CN202120684226.3U 2021-04-02 2021-04-02 Straight spiral combined stair with adjustable assembly Expired - Fee Related CN215407021U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120684226.3U CN215407021U (en) 2021-04-02 2021-04-02 Straight spiral combined stair with adjustable assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120684226.3U CN215407021U (en) 2021-04-02 2021-04-02 Straight spiral combined stair with adjustable assembly

Publications (1)

Publication Number Publication Date
CN215407021U true CN215407021U (en) 2022-01-04

Family

ID=79670206

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120684226.3U Expired - Fee Related CN215407021U (en) 2021-04-02 2021-04-02 Straight spiral combined stair with adjustable assembly

Country Status (1)

Country Link
CN (1) CN215407021U (en)

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Granted publication date: 20220104