CN209742769U - A double ladder for construction - Google Patents
A double ladder for construction Download PDFInfo
- Publication number
- CN209742769U CN209742769U CN201920246869.2U CN201920246869U CN209742769U CN 209742769 U CN209742769 U CN 209742769U CN 201920246869 U CN201920246869 U CN 201920246869U CN 209742769 U CN209742769 U CN 209742769U
- Authority
- CN
- China
- Prior art keywords
- ladder
- transmission rod
- transmission
- ladder beam
- building construction
- 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.)
- Expired - Fee Related
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- Ladders (AREA)
Abstract
The utility model relates to a herringbone ladder for building construction, which comprises two side ladders which are arranged in a crossed way and are hinged at the tops, wherein each side ladder comprises a first ladder beam and a second ladder beam, rollers are arranged at the bottoms of the first ladder beam and the second ladder beam, and the first ladder beam is fixedly connected with the second ladder beam through a plurality of pedals; the first ladder beam is provided with a transmission mechanism, and the transmission mechanism is connected with the triangular idler wheels at the bottoms of the first ladder beam and the second ladder beam through a transmission shaft. The utility model discloses simple structure, stability is good, portable.
Description
Technical Field
The utility model belongs to the construction field, in particular to a double ladder for construction.
Background
A herringbone ladder: the ladder is also called as a folding ladder and is used for a type of climbing tool working in the space above a plane, and when the ladder is used, the front ladder rod, the rear ladder rod and the ground form an isosceles triangle which looks like a herringbone, so that the ladder is called as a herringbone ladder. The double ladder is divided into a fixed double ladder and a movable double ladder. The fixed herringbone ladder is a temporary building tool for people; the movable herringbone ladder connects the tops of the two ladders together by hinges, and can be combined when moving, so that the movable herringbone ladder is widely applied to temporary climbing operation. In the prior art, the herringbone ladder can only be at a fixed position, and when the herringbone ladder needs to be moved, the herringbone ladder needs to be moved down from the ladder; the movable herringbone ladder can be moved only by being driven by a motor, and has poor stability, low safety performance and complex structure.
SUMMERY OF THE UTILITY MODEL
The utility model is provided for solving the problems in the prior art, and aims to solve the problem that the herringbone ladder can not move in the using process,
Solution to the problem: a double ladder for building construction comprises two side ladders which are arranged in a crossed mode and hinged to each other at the tops, wherein each side ladder comprises a first ladder beam and a second ladder beam, rollers are arranged at the bottoms of the first ladder beam and the second ladder beam, and the first ladder beam is fixedly connected with the second ladder beam through a plurality of pedals; and the transmission mechanism is connected with the rollers at the bottoms of the first ladder beam and the second ladder beam through transmission shafts.
It is preferable that: the transmission mechanism comprises a transmission assembly and a power wheel, and the bottom of the transmission assembly is matched with a protruding part on the power wheel.
it is preferable that: the transmission assembly comprises a first transmission rod, a second transmission rod and a third transmission rod, the first transmission rod, the second transmission rod and the third transmission rod penetrate through the first ladder beam, the first transmission rod, the second transmission rod and the third transmission rod are sequentially connected end to end, a hook-shaped piece is arranged at the bottom of the third transmission rod, and the hook-shaped piece is fixed at the bottom of the first ladder beam through a spring.
It is preferable that: and the first ladder beam is provided with a groove for mounting the first transmission rod.
It is preferable that: the side ladder is a cuboid with a hollow interior.
It is preferable that: the roller is a triangular roller.
It is preferable that: and the middle part of the side ladder is provided with a telescopic bracket.
The utility model has the advantages that: the utility model has simple structure, convenient industrial production, good stability and high safety performance; the movable type electric heating cooker can be directly moved in the using process, so that the operation is convenient, and the working efficiency is improved; the device is driven by pure machinery without electric power, thereby reducing the cost and dead weight and being convenient to carry; the triangular roller is arranged, so that the system is more stable; the transmission mechanism is placed inside the hollow side ladder, the appearance is not influenced, the telescopic support is arranged between the side ladders, the occupied area of the herringbone ladder is small, and the herringbone ladder is convenient to take.
Drawings
FIG. 1 is a perspective view of the present invention
FIG. 2 is a front view of the present invention
FIG. 3 is a side view of the present invention
FIG. 4 is a schematic view of the structure of the transmission mechanism
Description of the reference numerals
The ladder comprises a side ladder 1, a first ladder beam 2, a pedal 3, a transmission mechanism 4, a transmission shaft 5, a roller 6, a power wheel 7, a boss 8, a first transmission rod 9, a second transmission rod 10, a third transmission rod 11, a hook-shaped piece 12, a spring 13, a telescopic bracket 14 and a second ladder beam 15.
Detailed Description
Example 1: a double ladder for building construction comprises two side ladders 1 which are arranged in a crossed mode and are hinged to each other at the tops, wherein each side ladder 1 comprises a first ladder beam 2 and a second ladder beam 15, rollers 6 are arranged at the bottoms of the first ladder beam 2 and the second ladder beam 15, and the first ladder beam 2 is fixedly connected with the second ladder beams 15 through a plurality of pedals 3; the first ladder beam 2 is provided with a transmission mechanism 4, and the transmission mechanism 4 is connected with rollers 6 at the bottom of the first ladder beam 2 and the second ladder beam 15 through a transmission shaft 5.
Further, the method comprises the following steps: the transmission mechanism 4 comprises a transmission assembly and a power wheel 7, and the bottom of the transmission assembly is matched with a convex part 8 on the power wheel 7; the transmission assembly comprises a first transmission rod 9, a second transmission rod 10 and a third transmission rod 11 which penetrate through the first ladder beam 2, the first transmission rod 9, the second transmission rod 10 and the third transmission rod 11 are sequentially connected end to end, a hook-shaped piece 12 is arranged at the bottom of the third transmission rod 11, and the hook-shaped piece 12 is fixed at the bottom of the first ladder beam 2 through a spring 13; the first ladder beam 2 is provided with a groove for mounting a first transmission rod 9; the side ladder 1 is a cuboid with a hollow interior; the roller 6 is a triangular roller; the middle part of the side ladder 1 is provided with a telescopic bracket 14.
The working principle is as follows: when a worker presses one end of the first transmission rod 9 downwards, the other end of the first transmission rod 9 moves upwards, the second transmission rod 10 moves upwards due to the fact that the second transmission rod 10 is hinged to the first transmission rod 9, the third transmission rod 11 also moves upwards, and the hook-shaped piece 12 at the bottom of the third transmission rod 11 is in contact with the protruding portion 8 of the power wheel 7, and when the third transmission rod 11 moves upwards, the hook-shaped piece 12 at the bottom can drive the protruding portion 8 of the power wheel 7, and the power wheel 7 rotates; because the power wheel 7 and the triangular roller 6 rotate coaxially, when the power wheel 7 rotates, the triangular roller 6 must move forwards along with the power wheel; when the worker loosens the first transmission rod 9, the second transmission rod 10 moves downwards and returns to the original position together with the bottom of the third transmission rod 11 under the action of the spring 13; the staff repeatedly carries out two steps of pressing down and loosening, and the double ladder can move all the time.
Example 2: when the work staff moves the herringbone ladder to a specified position and adjusts the herringbone ladder to a specified height through the telescopic support 14 in the middle, the work staff climbs to a certain height and carries out construction, and when the work staff needs to move to the left in the construction process, hands or feet are placed on the first transmission rod 9 of the left side ladder 1 and are pressed downwards, and the herringbone ladder can move to the left; the left side ladder and the right side ladder are consistent in structure, when the left side ladder and the right side ladder need to move to the right in the construction process, hands or feet are placed on the first transmission rod 9 of the right side ladder 1 and pressed downwards, and the herringbone ladder can move rightwards.
Claims (7)
1. A double ladder for building construction comprises two side ladders (1) which are arranged in a crossed mode and hinged to each other at the tops, wherein each side ladder (1) comprises a first ladder beam (2) and a second ladder beam (15), rollers (6) are arranged at the bottoms of the first ladder beam (2) and the second ladder beam (15), and the first ladder beam (2) is fixedly connected with the second ladder beam (15) through a plurality of pedals (3); the method is characterized in that: be equipped with drive mechanism (4) on first ladder roof beam (2), drive mechanism (4) are connected through gyro wheel (6) of transmission shaft (5) and first ladder roof beam (2), second ladder roof beam (15) bottom.
2. A trestle ladder for building construction according to claim 1, characterised in that the transmission mechanism (4) comprises a transmission assembly and a power wheel (7), the bottom of the transmission assembly cooperating with a projection (8) on the power wheel (7).
3. A trestle ladder for building construction according to claim 2, characterized in that the transmission assembly comprises a first transmission rod (9), a second transmission rod (10) and a third transmission rod (11) which pass through the first ladder beam (2), the first transmission rod (9), the second transmission rod (10) and the third transmission rod (11) are connected end to end in sequence, the first transmission rod (9) is rotatably connected to the first ladder beam (2) through a support shaft, the bottom of the third transmission rod (11) is provided with a hook (12), and the hook (12) is fixed at the bottom of the first ladder beam (2) through a spring (13).
4. A trestle ladder for building construction according to claim 1, characterised in that the first ladder beam (2) is provided with a groove for mounting the first driving bar (9).
5. A trestle ladder for building construction according to claim 1, characterised in that the side ladder (1) is a cuboid with a hollow interior.
6. A trestle ladder for building construction according to claim 1, characterised in that the rollers (6) are triangular rollers.
7. A trestle ladder for building construction according to claim 1, characterised in that the side ladder (1) is provided with telescopic supports (14) in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920246869.2U CN209742769U (en) | 2019-02-27 | 2019-02-27 | A double ladder for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920246869.2U CN209742769U (en) | 2019-02-27 | 2019-02-27 | A double ladder for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209742769U true CN209742769U (en) | 2019-12-06 |
Family
ID=68707549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920246869.2U Expired - Fee Related CN209742769U (en) | 2019-02-27 | 2019-02-27 | A double ladder for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209742769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647833A (en) * | 2020-12-21 | 2021-04-13 | 唐冬冬 | Aluminum alloy section bar |
-
2019
- 2019-02-27 CN CN201920246869.2U patent/CN209742769U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647833A (en) * | 2020-12-21 | 2021-04-13 | 唐冬冬 | Aluminum alloy section bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20210227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |