CN216477116U - Special curved extension ladder for arched roof - Google Patents
Special curved extension ladder for arched roof Download PDFInfo
- Publication number
- CN216477116U CN216477116U CN202121674872.8U CN202121674872U CN216477116U CN 216477116 U CN216477116 U CN 216477116U CN 202121674872 U CN202121674872 U CN 202121674872U CN 216477116 U CN216477116 U CN 216477116U
- Authority
- CN
- China
- Prior art keywords
- ladder
- curved
- straight
- arc
- arched roof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Ladders (AREA)
Abstract
The utility model discloses a special curved-arc extension ladder for an arched roof, which comprises a straight ladder part and a curved-arc ladder part, wherein the curved-arc ladder part is connected above the straight ladder part and supported by the straight ladder part, the straight ladder part at least has a straight ladder structure, and the curved-arc ladder part is arc-shaped and is arranged into an extension structure to adapt to the appearance of the arched roof. The ladder comprises a straight ladder part and a curved ladder part, wherein the straight ladder part is used for stably supporting the curved ladder part below the curved ladder part, the curved ladder part can adapt to an arched roof to facilitate construction of personnel, and the curved ladder part is of a telescopic structure to adapt to the widths or spans of different arched roofs, so that the problem that the conventional straight ladder is inconvenient for construction of the arched roofs is effectively solved.
Description
Technical Field
The utility model relates to the technical field of construction equipment, in particular to a special curved-arc extension ladder for an arched roof, which is convenient for constructing the arched roof of a building.
Background
The ladder is usually used in the building construction, and the shape of the unable adaptation building of conventional straight ladder, like arch portion, the constructor is under construction very inconveniently on straight ladder. Use pump house, station room and the big-arch shelter that has arch top or lateral part as the example, straight ladder is taken and is established the lateral part at the building, and the constructor carries out construction operations such as drilling, welding, dismouting bolt to the building on straight ladder, when being under construction to the arch position, the constructor can't reach the construction position, or need bow just enough reach the construction position, and the construction is very inconvenient, and is unsafe, consequently needs to design a special curved arc extension ladder of arch roofing urgently.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to address at least the above-mentioned deficiencies and to provide at least the advantages which will be described hereinafter.
The utility model also aims to provide the special curved-arc extension ladder for the arched roof, which consists of a straight ladder part and a curved-arc ladder part, wherein the straight ladder part is used for stably supporting the curved-arc ladder part below the curved-arc ladder part, the curved-arc ladder part can be suitable for the arched roof to facilitate the construction of personnel, and the curved-arc ladder part is of an extension structure to adapt to the widths or spans of different arched roofs, so that the problem that the conventional straight ladder is inconvenient for the construction of the arched roof is effectively solved.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, as embodied and broadly described herein, there is provided a curved extension ladder for an arched roof, comprising a straight ladder portion and a curved ladder portion, the curved ladder portion being connected to and supported by the straight ladder portion, the straight ladder portion having at least one straight ladder structure, and the curved ladder portion being curved and configured as an extension structure to conform to an outer shape of the arched roof.
Preferably, the special curved extension ladder for the arched roof, wherein the curved ladder portion comprises a plurality of curved ladder structural units, and the curved ladder structural units comprise: the pedal comprises a transverse component as a pedal platform and vertical supporting components positioned at two sides of the transverse component, wherein the transverse component is connected with the vertical supporting components. The arc-shaped special structure unit is simple in structure, stable and durable, and the telescopic structure design is convenient to carry out.
Preferably, in the special curved-arc extension ladder for the arched roof, the vertical supporting part is set to be arc-shaped, and the two ends of the vertical supporting part are provided with the sleeving parts, or the vertical supporting part is set to be a hollow sleeving structure; the plurality of arc ladder structure units are mutually sleeved to realize the extension of the curved ladder part. The sleeved structure is simple and stable, the expansion ratio is large, the occupied space is small when the expansion ratio is reduced, and the coverage area is large after the expansion ratio is extended; the curved vertical support members may be attached to the arched roof.
Preferably, in the special curved extension ladder for the arched roof, the vertical support component is of a scissor telescopic structure to realize the extension and retraction of the structural unit of the arc ladder.
Preferably, in the special curved telescopic ladder for the arched roof, the vertical supporting component is provided with a locking mechanism to realize telescopic locking.
Particularly, when using the structure that cup joints to realize flexible, set up the joint part on vertical support part, when cup jointing the motion to this position, the locking between two adjacent arc ladder constitutional units is realized in the cooperation of joint part, and when needs unblock, trigger switch makes the unblock of joint part can.
When using to cut fork extending structure and realizing flexible, can set up the joint part on cutting the fork extending structure equally, when cutting the fork extending structure extension, joint part joint locking, when needs shorten, through the switch with the joint part unblock can.
Preferably, in the special curved extension ladder for the arched roof, the vertical support component is provided with a sliding part or a rolling part, the sliding part or the rolling part is supported on the arched roof when the curved ladder part is adapted to the arched roof, and the sliding part or the rolling part slides or rolls along the arched roof to facilitate telescopic adjustment when the curved ladder part or the curved ladder structure unit is telescopic.
If the sliding part or the rolling part is not arranged, when the ladder is erected on a roof and constructors construct on the ladder, the ladder has large friction with the roof, and the telescopic operation of the ladder is not easy to perform; after the sliding part or the rolling part is arranged, the sliding part or the rolling part is in contact with the roof to serve as a support, friction is reduced, and therefore the extension of the ladder is convenient to adjust.
Preferably, in the curved telescopic ladder special for the arched roof, the surface of the rolling part is provided with an elastic layer. The elastic layer is used for buffering the contact between the ladder and the roof.
Preferably, in the special curved telescopic ladder for the arched roof, the straight ladder part is movably sleeved, fixedly connected or rotatably connected with the curved ladder part;
when the straight ladder part and the curved ladder part are movably sleeved, the straight ladder part and the curved ladder part are respectively provided with a sleeving structure to be matched with each other;
when the connecting mechanism is in rotating connection, the straight ladder part is connected with the bent arc ladder part through the bearing, an angle adjusting mechanism is arranged between the straight ladder part and the bent arc ladder part, one end of the angle adjusting mechanism is connected with the straight ladder part, and the other end of the angle adjusting mechanism is connected with the bent arc ladder part and used for adjusting the angle formed by the connection of the straight ladder part and the bent arc ladder part.
The straight ladder part and the bent ladder part are arranged into structures with adjustable angles, so that the ladder can be better matched with a roof.
Preferably, in the special curved extension ladder for the arched roof, the straight ladder structure comprises: a transverse pedal component and a straight vertical component; the straight vertical parts are positioned at two sides of the horizontal pedal part and support and fix the horizontal pedal part.
Preferably, the straight ladder structure is provided with a supporting hand, one end of the supporting hand is hinged on the straight ladder structure, and the other end of the supporting hand swings up and down to adjust the supporting position
The utility model at least comprises the following beneficial effects:
the special curved-arc extension ladder for the arched roof consists of the straight ladder part and the curved-arc ladder part, wherein the straight ladder part is used for stably supporting the curved-arc ladder part below the curved-arc ladder part, and the curved-arc ladder part can adapt to the arched roof to facilitate construction of personnel, so that the construction efficiency is improved, and the construction safety is ensured; and the curved arc ladder part is of a telescopic structure so as to adapt to the width or span of different arched roofs, and the problem that the conventional straight ladder is inconvenient for construction of the arched roofs is effectively solved.
The telescopic structure is simple in design and composition, stable and durable, small in occupied space when being reduced, large in coverage area after being extended, capable of being better attached to an arched roof and high in construction stability.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the curved telescopic ladder special for the arched roof, provided by the utility model;
FIG. 2 is a schematic view of the state of the curved telescopic ladder special for the arched roof of the utility model when being matched with the arched roof;
FIG. 3 is a view showing the use states of the curved extension ladder and the conventional straight ladder for the arched roof of the present invention;
FIG. 4 is a schematic view of the curved ladder section according to the present invention in a contracted state;
FIG. 5 is a schematic view of the elongated curved ladder portion of the present invention;
FIG. 6 is a schematic structural view illustrating a connection manner of the curved ladder portion and the straight ladder portion according to the present invention;
FIG. 7 is a schematic structural view illustrating another connection manner of the curved ladder section and the straight ladder section according to the present invention;
fig. 8 is a schematic structural view of a second embodiment of the curved telescopic ladder special for the arched roof, provided by the utility model;
fig. 9 is a schematic structural view of a second embodiment of the curved ladder section according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the utility model with reference to the description.
Fig. 1 to 3 show an embodiment of the curved extension ladder special for the arched roof, which comprises:
straight type ladder portion 201 and curved arc ladder portion 202, curved arc ladder portion 202 is connected in straight type ladder portion 201 top and is supported by straight type ladder portion 201, straight type ladder portion 201 has a straight type ladder structure at least, curved arc ladder portion sets up to the appearance that extending structure is used for adapting to the arch roofing.
In this embodiment, the straight ladder portion 201 can be erected on the side portion of the roof of the building like a conventional straight ladder, and the curved ladder portion is of an arc structure and can be extended and retracted so as to be adapted to a building having an arched roof, so that a constructor can use the arched roof more conveniently on the curved ladder portion.
Specifically, the following details are given in this embodiment for easy understanding and implementation, as shown in fig. 1 to 3, the pump station or the pump house 1 has an arched roof, and during the assembly process, a constructor needs to climb up the arched roof 101 to perform operations such as welding or bolting on the construction site 102. If the conventional straight ladder 3 is used, the straight ladder 3 is erected on the pump station 1, the range covered by a constructor on the straight ladder 3 is limited, and the constructor cannot conveniently operate the construction part 102. The special curved-arc extension ladder 2 for the arched roof is provided with the straight ladder portion 201 and the curved-arc ladder portion 202, the curved-arc ladder portion 202 can be matched with the arched roof 101, a constructor can conveniently operate the construction position 102 on the curved-arc ladder portion 202, and construction operation efficiency is effectively improved.
Further, in another embodiment, as shown in fig. 4 and 5, the curved ladder portion includes a plurality of curved ladder structural units, the curved ladder structural units including: a cross member 6 as a tread platform and vertical support members 5 located at both sides of the cross member 6, the cross member 6 and the vertical support members 5 being interconnected. The arc ladder structure unit is simple in structure, stable and durable, and the telescopic structure design is convenient to carry out.
Further, in another embodiment, as shown in fig. 4 and 5, the vertical supporting component 5 is set to be arc-shaped, and two ends of the vertical supporting component 5 are provided with a socket part 501, such as by thread socket fit, straight socket, and then welding or bolt fixing; or the vertical supporting part 5 is directly arranged into a hollow sleeving structure; the plurality of arc ladder structure units are mutually sleeved to realize the extension of the curved ladder part. The sleeved structure is simple and stable, the expansion ratio is large, the occupied space is small when the expansion ratio is reduced, and the coverage area is large after the expansion ratio is extended; the curved vertical support members may be attached to the arched roof. FIG. 4 shows the configuration in which the curved ladder section is shortened, in which the vertical support members 5 have been fitted into each other, in a very contracted state; fig. 5 shows the state of the curved part when it is extended, and the vertical supporting part 5 is still sleeved, but the sleeved state is small, and it is extended, and it is convenient to match with the arched roof.
Further, in another embodiment, referring to fig. 4 and 5, the vertical support member 5 is provided as a scissor telescopic structure to achieve the telescopic of the curved ladder structure unit. The whole telescopic structure of the shear fork should also be an arc-shaped structure to be matched with the arched roof.
Further, in another embodiment, as shown in fig. 4 and 5, the vertical support member 5 is provided with a locking mechanism to achieve telescopic locking.
Specifically, this embodiment gives following details in order to understand and implement, when using the structure of cup jointing to realize flexible, sets up joint part on vertical support part 5, when cup jointing when moving to this position, the locking between two adjacent arc ladder constitutional units is realized in the cooperation of joint part, and when needs unblock, trigger switch makes the unblock of joint part can. In the structure shown in fig. 5, the clamping component is an elastic protrusion 7 and a hole site arranged at a corresponding position, when the vertical supporting component is extended, the elastic protrusion is aligned with the hole site, the elastic protrusion is clamped in the hole site to form a locking of the vertical supporting component, and after the elastic protrusion 7 is pressed in, the vertical supporting component can be shortened.
When using to cut fork extending structure and realizing flexible, can set up the joint part on cutting the fork extending structure equally, when cutting the fork extending structure extension, joint part joint locking, when needs shorten, through the switch with the joint part unblock can. Can choose for use the bracing piece that has the joint interface as the joint part this moment, when cutting the fork extending structure and extending to certain length, use the bracing piece to support on cutting the fork extending structure through the joint interface, prevent to cut fork extending structure and lengthen or shorten again.
Further, in another embodiment, as shown in fig. 1 and 8, a sliding portion or a rolling portion 8 is provided on the vertical supporting member 5, in the structure shown in fig. 8, the rolling portion 8 is located on the inner side surface of the curved ladder portion, when the curved ladder portion is fitted to the arched roof, the sliding portion or the rolling portion 8 is supported on the arched roof, and when the curved ladder portion or the curved ladder structural unit is stretched, the sliding portion or the rolling portion 8 can slide or roll on the arched roof so as to facilitate a constructor to directly adjust the stretching of the curved ladder portion on the ladder, thereby facilitating the construction operation.
Specifically, the rolling part 8 can be a rolling ball, a roller or a roller, the rolling ball and the roller are small in size and suitable for ladders with high portability requirements, the rolling ball or the roller can be directly arranged at two ends of the transverse part 6, and when a constructor steps on the transverse part 6, stress can be dispersed to an arched roof through the roller or the rolling ball; the volume of cylinder is great, can increase with the area of contact of arch roofing, the dispersion atress guarantees firm and balanced, the cylinder can with 6 parallel mount or nonparallel installation of transverse component, also can every transverse component 6 correspond and set up a cylinder, or set up a plurality of cylinders, the both ends and the vertical braces part 5 of cylinder are connected respectively, or the cylinder directly sets up on transverse component 6 from not influencing vertical braces part's cup jointing flexible.
If the sliding part or the rolling part is not arranged, when the ladder is erected on a roof and a constructor constructs on the ladder, the friction between the ladder and the roof is large, and the constructor is not easy to perform the ladder extension operation on the ladder; in this embodiment, set up sliding part or rolling portion after, sliding part or rolling portion and roofing contact have reduced the friction, and the constructor only needs to remove the foot from current transverse component to other transverse component on, then loosens current vertical braces's locking structure, just can stretch out and draw back the regulation to current vertical braces, and is very convenient.
Further, in another embodiment, as shown in fig. 8, an elastic layer is provided on the surface of the rolling part 8. The elastic layer is used for buffering the contact between the ladder and the roof, so that the free shaking of the rolling part can be reduced.
Further, in another embodiment, as shown in fig. 6 and 7, the straight ladder section 201 is movably sleeved, fixedly connected or rotatably connected with the curved ladder section 202;
as shown in fig. 6, when the ladder sections are movably sleeved, the straight ladder section 201 and the curved ladder section 202 are respectively provided with a sleeved structure 203 to be matched with each other; the sleeve structure 203 can be a sleeve or a sleeve groove, and can be sleeved by a screw thread or reinforced by a bolt after the sleeve is sleeved to ensure the stability of the sleeve.
As shown in fig. 7, when the connection is a rotating connection, the straight ladder portion 201 is connected with the curved ladder portion 202 through the bearing mechanism 204, and the angle adjusting mechanism 4 is disposed between the straight ladder portion 201 and the curved ladder portion 202, one end of the angle adjusting mechanism 4 is connected with the straight ladder portion 201, and the other end is connected with the curved ladder portion 202, so as to adjust the angle formed by the connection of the straight ladder portion and the curved ladder portion, thereby facilitating the adaptation to the shape of the roof.
This embodiment sets up straight type ladder portion and curved arc ladder portion into the structure that can angle regulation, makes things convenient for better and the roofing cooperation of ladder.
Further, in another embodiment, as shown in fig. 1, generally, the straight ladder structure includes: a transverse pedal component and a straight vertical component; the straight vertical parts are positioned at two sides of the horizontal pedal part and support and fix the horizontal pedal part.
Further, in another kind of embodiment, for the steadiness that increases the ladder, set up a plurality of support hands in straight type ladder portion inboard, support hand one end and articulate on supporting ladder portion, the other end can the luffing motion in order to adjust the support position, the bottom of straight type ladder portion is provided with the supporting legs, when using the ladder, erect the ladder in one side of arch roofing buildings such as pump station pump house, the support frame inserts ground or the firm contact with ground, the swing supports the hand and makes the other end that supports the hand support on building or subaerial, thereby guarantee straight type ladder portion more firm, thereby give curved arc ladder portion outrigger, guarantee constructor safety, improve the efficiency of construction.
Further, in another embodiment, as shown in fig. 9, the front end of the curved step portion clamps or hangs the pad 9. The constructor often need lie prone on the arch face when the construction on the vault, takes off cushion 9 from curved arc ladder portion, and cushion health below can play the dispersion atress, improves the effect of comfort level. Cushion 9 can be cushion, bamboo pad, track or stereoplasm flat board etc. and cushion, bamboo pad, track can curl and tighten up, can regard as the cushion dispersion atress again, can roll up after using the completion, and the stereoplasm flat board can provide powerful support, makes things convenient for human body or apparatus to prevent above that.
Further, as shown in fig. 9, the side of the curved ladder portion is provided with a slide bar 11 which can be pulled out to the side, and a constructor can erect a hard flat plate on the slide bar 11 to form a placing platform which is extended to the side, so that the construction activity space is increased, and can place construction equipment on the hard flat plate, or the constructor steps on the extension ladder with feet, and the chest or the hand is pressed on the hard flat plate to perform construction operation in a larger area. For better setting of the sliding rod 11, the sliding slot 10 is provided on the transverse member 6, the sliding rod 11 is limited in the sliding slot 10 and can slide freely, when the sliding rod 11 is needed, the sliding rod 11 is directly pulled out from the side, when the sliding rod is not needed, the sliding rod 11 is pushed into the sliding slot 10, and the occupied space is reduced.
The following is one embodiment of the present invention:
move the extension ladder to the pump station of treating the construction, rely on the pump station roofing behind the extension of straight type ladder portion, set up and support hand increase stability, the constructor climbs the ladder, then extend curved arc ladder portion one section by one section according to the order on the ladder, make the top arc of curved arc ladder portion adaptation pump station, can construct one section extension one section, also can be under construction after extending curved arc ladder portion completely, the construction mainly includes the bolted connection fixed or welded fastening to the pump station top arcwall.
While embodiments of the utility model have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art.
Claims (10)
1. Special curved arc extension ladder of arch roofing, its characterized in that, including straight type ladder portion and curved arc ladder portion, curved arc ladder portion is connected in straight type ladder portion top and is supported by straight type ladder portion, straight type ladder portion has a straight type ladder structure at least, curved arc ladder portion sets up to the appearance that extending structure is used for adapting to the arch roofing.
2. The special curved extension ladder for arched roofs of claim 1, wherein said curved ladder portion includes a plurality of curved ladder structural units, said curved ladder structural units including: the pedal comprises a transverse component as a pedal platform and vertical supporting components positioned at two sides of the transverse component, wherein the transverse component is connected with the vertical supporting components.
3. The special curved extension ladder for the arched roof as claimed in claim 2, wherein the vertical support part is set to be arc-shaped, and both ends of the vertical support part are provided with socket joints, or the vertical support part is set to be a hollow socket structure; the plurality of arc ladder structure units are mutually sleeved to realize the extension of the curved ladder part.
4. The curved telescopic ladder special for arched roof of claim 2, wherein the vertical support component is arranged as a scissor telescopic structure to realize the extension and retraction of the curved ladder structure unit.
5. The curved telescopic ladder for arched roof as claimed in claim 3 or 4, wherein the vertical support members are provided with locking mechanisms to achieve telescopic locking.
6. The curved telescopic ladder special for the arched roof as claimed in claim 3 or 4, wherein the vertical support member is provided with a sliding part or a rolling part, the sliding part or the rolling part is supported on the arched roof when the curved ladder part is adapted to the arched roof, and the sliding part or the rolling part slides or rolls along the arched roof to facilitate telescopic adjustment when the curved ladder part or the curved ladder structure unit is telescopic.
7. The curved telescopic ladder for arched roof as claimed in claim 6, wherein the rolling part has an elastic layer on its surface.
8. The special curved extension ladder for the arched roof as claimed in claim 1, wherein the straight ladder portion is movably sleeved, fixedly connected or rotatably connected with the curved ladder portion;
when the straight ladder part and the curved ladder part are movably sleeved, the straight ladder part and the curved ladder part are respectively provided with a sleeving structure to be matched with each other;
when the connecting mechanism is in rotating connection, the straight ladder part is connected with the bent arc ladder part through the bearing, an angle adjusting mechanism is arranged between the straight ladder part and the bent arc ladder part, one end of the angle adjusting mechanism is connected with the straight ladder part, and the other end of the angle adjusting mechanism is connected with the bent arc ladder part and used for adjusting the angle formed by the connection of the straight ladder part and the bent arc ladder part.
9. The curved telescopic ladder special for arched roof as claimed in claim 1, wherein said straight ladder structure comprises: a transverse pedal component and a straight vertical component; the straight vertical parts are positioned at two sides of the horizontal pedal part and support and fix the horizontal pedal part.
10. The curved telescopic ladder for arched roof as claimed in claim 9, wherein the straight ladder structure is provided with a support arm, one end of the support arm is hinged to the straight ladder structure, and the other end of the support arm swings up and down to adjust the position of the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121674872.8U CN216477116U (en) | 2021-07-22 | 2021-07-22 | Special curved extension ladder for arched roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121674872.8U CN216477116U (en) | 2021-07-22 | 2021-07-22 | Special curved extension ladder for arched roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216477116U true CN216477116U (en) | 2022-05-10 |
Family
ID=81432374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121674872.8U Active CN216477116U (en) | 2021-07-22 | 2021-07-22 | Special curved extension ladder for arched roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216477116U (en) |
-
2021
- 2021-07-22 CN CN202121674872.8U patent/CN216477116U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4899849A (en) | Ladder stabilizer | |
| AU5726499A (en) | Anti-slip device for ladders | |
| CA2294460A1 (en) | Portable treatment table | |
| CN216477116U (en) | Special curved extension ladder for arched roof | |
| US2995094A (en) | Adjustable gantry with jacking device | |
| CN209832252U (en) | A folding work platform for cutting of big board ceramic tile | |
| KR20090033895A (en) | Corner brace | |
| WO2012168684A1 (en) | Support apparatus and improved height access apparatus | |
| CN211058695U (en) | Multifunctional ladder stand | |
| CN114748317B (en) | Orthopedics nursing helps capable device | |
| CN215519850U (en) | Construction frame | |
| CN211081252U (en) | Movable protective fence for building construction | |
| CN210858550U (en) | Can extend insulating companion ladder | |
| ES2307775T3 (en) | ERIGIBLE ROOF WITH A REINFORCED ROOF STRUCTURE. | |
| CN105640134A (en) | Portable fully-folded type folding bed | |
| WO2020169942A1 (en) | Improved step ladder and support structure | |
| CN210509010U (en) | Folding ladder for construction site | |
| CN215565649U (en) | Herringbone ladder with auxiliary supporting legs | |
| CN219529051U (en) | Safety protection canopy is used in construction of tunnel inside | |
| CN221168591U (en) | Assembled operation platform for indoor decoration construction | |
| CN219826032U (en) | Scaffold for mountain region photovoltaic construction | |
| JP3917005B2 (en) | Ladder vertical support method by vertical structure support device | |
| CN218668612U (en) | Be applied to auxiliary fixtures of prefab assembly of building site construction | |
| CN217548901U (en) | Dumbbell stool | |
| CN218492903U (en) | Movable ladder way device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |