CN202945996U - Multifunctional combination extension ladder - Google Patents
Multifunctional combination extension ladder Download PDFInfo
- Publication number
- CN202945996U CN202945996U CN 201220526472 CN201220526472U CN202945996U CN 202945996 U CN202945996 U CN 202945996U CN 201220526472 CN201220526472 CN 201220526472 CN 201220526472 U CN201220526472 U CN 201220526472U CN 202945996 U CN202945996 U CN 202945996U
- Authority
- CN
- China
- Prior art keywords
- ladder
- unit
- retaining
- ladder unit
- block piece
- 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 belongs to the technical field of ladders, and in particular discloses a multifunctional combination extension ladder. The multifunctional combination extension ladder comprises a first ladder unit, a second ladder unit and a third ladder unit which are sequentially arranged, wherein retaining pieces are arranged outside the ladder rods of the second ladder unit and the third ladder unit; and each retaining piece comprises a retaining rod and a retaining rod sleeve which is sleeved on the retaining rod. Because the retaining pieces with the structures are adopted, the extension ladder can be used for effectively solving the influenced attractiveness problem which is easily caused by scratches generated on the corresponding ladder parts after the currently adopted metal retaining pieces scratch a ladder surface, and the problem that the metal retaining pieces scratch users can also be effectively avoided.
Description
Technical field
The utility model relates to a kind of ladder, specifically a kind of multi-functional combination extension ladder.
Background technology
Present multi-functional combination extension ladder all can be equipped with block piece usually on the terraced bar of extendible second, third ladder unit, generally, these block pieces use metals to make, and are particularly made by steel.Use the metal block piece easily to cause by the metal block piece and scratch the ladder surface, make ladder corresponding position the cut mark occur, affect attractive in appearance; Simultaneously, owing to adopting the metal block piece, user such as no small words are easy to scratch the user, and the user is caused damage.
The utility model content
The purpose of this utility model is to provide a kind of multi-functional combination extension ladder, being intended to solve present use metal block piece easily causes by metal block piece scuffing ladder surface, make ladder corresponding position the cut mark occur, affect problem attractive in appearance, simultaneously, can prevent effectively that also the metal block piece from scratching user's problem.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is as follows:
A kind of multi-functional combination extension ladder comprises successively the first ladder unit of connecting, the second ladder unit and the 3rd ladder unit, in described the second ladder unit and the terraced bar outside of the 3rd ladder unit be provided with block piece; Described block piece comprises a pin and is set in pin cover on described pin.
The circumferential surface of described pin has external screw thread, and described pin cover has internal thread, and described pin cover is screwed on described pin by described internal and external screw thread.
Described pin cover is made of plastics.
The utility model is due to the block piece that adopts said structure, thereby, in use, can effectively prevent from using at present the metal block piece easily to cause by metal block piece scuffing ladder surface, make ladder corresponding position the cut mark occur, affect problem attractive in appearance, simultaneously, can prevent effectively that also the metal block piece from scratching user's problem.
Description of drawings
Figure 1 shows that the structural representation of the multi-functional combination extension ladder that the utility model embodiment provides;
Figure 2 shows that the sectional structure schematic diagram of the block piece that the utility model embodiment provides;
In figure: 1, the first ladder unit, the 2, second ladder unit, the 3, the 3rd ladder unit, 4, block piece, 40, pin, 41, the pin cover.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
Referring to Fig. 1, the figure shows the structure of the multi-functional combination extension ladder that the utility model embodiment provides.For convenience of explanation, only show the part relevant with the utility model embodiment.
A kind of multi-functional combination extension ladder comprises successively the first ladder unit 1 of connecting, the second ladder unit 2 and the 3rd ladder unit 3, in described the second ladder unit 2 and the terraced bar outside of the 3rd ladder unit 3 be provided with block piece 4; Described block piece 4 comprises a pin 40 and is set in pin cover 41 on described pin 40.
The circumferential surface of described pin 40 has external screw thread, and described pin cover 41 has internal thread, and described pin cover 41 is screwed on described pin 40 by described internal and external screw thread.
Described pin cover 41 is made of plastics.
The utility model is due to the block piece that adopts said structure, thereby, in use, can effectively prevent from using at present the metal block piece easily to cause by metal block piece scuffing ladder surface, make ladder corresponding position the cut mark occur, affect problem attractive in appearance, simultaneously, can prevent effectively that also the metal block piece from scratching user's problem.
The above is only preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. multi-functional combination extension ladder comprises the first ladder unit of connecting successively, the second ladder unit and the 3rd ladder unit, in described the second ladder unit and the terraced bar outside of the 3rd ladder unit be provided with block piece; It is characterized in that, described block piece comprises a pin and is set in pin cover on described pin.
2. multi-functional combination extension ladder according to claim 1, is characterized in that, the circumferential surface of described pin has external screw thread, and described pin cover has internal thread, and described pin cover is screwed on described pin by described internal and external screw thread.
3. multi-functional combination extension ladder according to claim 1 and 2, is characterized in that, described pin cover is made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526472 CN202945996U (en) | 2012-10-15 | 2012-10-15 | Multifunctional combination extension ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526472 CN202945996U (en) | 2012-10-15 | 2012-10-15 | Multifunctional combination extension ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945996U true CN202945996U (en) | 2013-05-22 |
Family
ID=48421703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526472 Expired - Fee Related CN202945996U (en) | 2012-10-15 | 2012-10-15 | Multifunctional combination extension ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202945996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033098A (en) * | 2014-06-30 | 2014-09-10 | 广西大学 | Dual-purpose herringbone ladder |
-
2012
- 2012-10-15 CN CN 201220526472 patent/CN202945996U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033098A (en) * | 2014-06-30 | 2014-09-10 | 广西大学 | Dual-purpose herringbone ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20131015 |