CN203729853U

CN203729853U - Extending ladder

Info

Publication number: CN203729853U
Application number: CN201320793677.6U
Authority: CN
Inventors: 王锦宝; 王荷芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-30
Filing date: 2013-11-30
Publication date: 2014-07-23
Anticipated expiration: 2023-11-30

Abstract

The utility model relates to an extending ladder with an extending state and a compressed state. The extending ladder is characterized by consisting of a horizontal seat body, insertion rods, fixed rods, step rods and connection rods. During use of the extending ladder, all the fixed rods are rotated around corresponding connection bodies to form a straight line, then the insertion rods in lower slots of the fixed rods are pushed into upper slots of the lower fixed rods, and the corresponding connection rods of two step rods on the same level are hinged together in order to realize the extending state of the extending ladder; otherwise, the extending ladder can be in the compressed state, so that the space can be saved. The extending ladder has the effects that due to the design, the ladder is convenient to carry; when the extending ladder is not used, the storage space is small.

Description

Extension ladder

Technical field

The utility model is a kind of ladder, especially can be in the ladder of extended configuration and compressive state.

Background technology

Ladder is widely used in life and work various aspects, and current terraced kind is various, the most general with yi shaped ladder and double ladder, and purposes is also very extensive, but they also exist take up room large, carry the deficiencies such as inconvenient.

Summary of the invention

In view of this, main purpose of the present utility model is to provide a kind of safe, dexterous and extension ladder easy to carry.

For achieving the above object, the utility model provides a kind of extension ladder that can stretch and compress, and it comprises horizontal pedestal, inserted link, fixed bar, terraced bar and connecting rod.

Described horizontal pedestal is at extension ladder during in extended configuration, on can supply people or seat or station, below it, be for good and all fixed together with top fixed bar and form an entirety, there is lower groove fixed bar lower end, top, be built-in with little inserted link, inboard has side mouth one, so that the physical efficiency that exposes of little inserted link moves along it.

Described fixed bar, there are four kinds of long fixed bar first, long fixed bar second, short fixed bar and bottom fixed bars, except bottom fixed bar only has upper groove, other fixed bar has upper groove and lower groove, lay respectively at the top and bottom of fixed bar, wherein go up groove and be at extension ladder during in extended configuration, after being exposed by the inserted link part in their the lower grain of that root fixed bar lower end, top, enter in it, to reach fixed effect.And all built-in inserted links of the lower groove of each fixed bar lower end, when extension ladder is during in compressive state, inserted link is placed in lower groove inside completely; When extension ladder is during in extended configuration, inserted link part expose and the upper groove that enters that root fixed bar of below to reach fixing effect.In addition, under each fixed bar, groove outside all has side mouth one, so that the physical efficiency that exposes of inserted link moves along it, thereby drives the movement of inserted link.

Described long fixed bar first is only the different of two connector relative positions from the difference of long fixed bar second, two connectors of long fixed bar first are heteropleurals, and its top can only be connected with the top fixed bar below horizontal pedestal, two connectors of long fixed bar second are homonymies, and its top can only be connected with terraced bar, the length difference of long fixed bar and short fixed bar is the poor half of terraced pole length of two successive stages, between two adjacent terraced bars all long fixed bar above short fixed bar.

Described inserted link is to be connect and formed by two different cuboids of floor space.One side has outer expose to be attached thereto by screw, so that move up and down under inserted link expose drive outside.When extension ladder is during in extended configuration, inserted link each several part is placed in respectively in the top lower groove of that root fixed bar and the upper groove of that root fixed bar of below, and meanwhile, many dots of inserted link one side can increase the friction between inserted link and upper groove, make extension ladder more stable; When extension ladder is during in compressive state, inserted link is placed under fixed bar in groove completely.The difference of large inserted link and little inserted link is only the difference of length, and little inserted link can only with horizontal pedestal below top fixed bar match.

All there are connector first and connector second in the described horizontal two ends of terraced bar, and they are connected with the connector second of short fixed bar and the connector first of long fixed bar second respectively, and each terraced pole length not at the same level is all not identical, but the length difference of the terraced bar of adjacent level equates.

Described connecting rod is to be connected with terraced bar by connector third and can to rotate around connector third, and connecting rod first and connecting rod second are interlocked during in extended configuration mutually at extension ladder, to play the effect of fixing extension ladder.

By the utility model, principle is simple, it is succinct, easy to carry to operate.

Brief description of the drawings

Fig. 1 is the schematic perspective view of the utility model in the time of extended configuration

Fig. 2 is the schematic perspective view of the utility model when compressive state (revolving the outer expose of inserted link)

Fig. 3 is the utility model stretching the schematic perspective view in change procedure between compression two states

Fig. 4 is the schematic perspective view of the horizontal pedestal of the utility model

Fig. 5 is the schematic perspective view of the little inserted link of the utility model

Fig. 6 is the schematic perspective view of the large inserted link of the utility model

Fig. 7 is the schematic perspective view of the long fixed bar first of the utility model (comprising large inserted link)

Fig. 8 is the schematic perspective view of the long fixed bar first of the utility model

Fig. 9 is the schematic perspective view of the long fixed bar second of the utility model

Figure 10 is the schematic perspective view of the short fixed bar of the utility model

Figure 11 is the schematic perspective view of the utility model bottom fixed bar

Figure 12 is the schematic perspective view of the utility model ladder bar

Figure 13 is the schematic perspective view of the utility model connecting rod first

Figure 14 is the schematic perspective view of the utility model connecting rod second

Specific embodiments

For ease of 26S Proteasome Structure and Function of the present utility model is had to further understanding, now lift by reference to the accompanying drawings preferred embodiment and be described in detail as follows:

Extension ladder is (as Fig. 2) in the time of compressive state, the outer expose of little inserted link 2 and large inserted link 5 also all screws out, and all inserted links are all placed in the lower groove 14 of each fixed bar, and connecting rod first 9 and connecting rod second 10 are also all near terraced bar 7, now the shared space minimum of extension ladder, is easy to carry.In the time that needs trail extension ladder, all outer exposes are distinguished in the little inserted link 2 of precession and large inserted link 5 by screw, simultaneously, long fixed bar first 3, short fixed bar 4, long fixed bar second 6 and bottom fixed bar 8 are slowly rotated to (as Fig. 3) around the connector first 12 being interlocked and connector second 16, make each solid rod be straight line, then all outer exposes are moved down along side mouth 15 separately, the end portion of little inserted link 2 and large inserted link 5 is all entered in the upper groove 13 of below fixed bar, so that each fixed bar is fixed.Finally, make their engaged respectively around connector the third 17 rotations the connecting rod first 9 on two terraced bars 7 of peer and connecting rod second 10, so that fixing whole extension ladder, now, extension ladder is in extended configuration (as Fig. 1), and people just can or sit or stand on horizontal pedestal 1 and carry out work.

If extension ladder will be become to compressive state from extended configuration, the connecting rod first 9 of two terraced bars 7 of peer and connecting rod second 10 can be separated in advance, then all outer exposes are up moved along side mouth 15 separately, little inserted link 2 and large inserted link 5 are all entered in the lower groove 14 of fixed bar separately completely, each fixed bar is slowly rotated to (as Fig. 3) around the connector first 12 being interlocked and connector second 16, finally all outer exposes are screwed out, can return to the compressive state (as Fig. 2) of extension ladder.

By the utility model extension ladder, can realize its conversion between compressive state, extended configuration and two states, and the utility model is easy to carry, principle is simple.

The above, be only preferred embodiment of the present utility model, is not intended to limit protection domain of the present utility model.

Claims

1. the extension ladder that can realize stretching, extension, compression, comprises horizontal pedestal, inserted link, fixed bar, terraced bar and connecting rod, between each parts, is connected respectively by connector first, connector second separately with connector second, the connector first of adjacent component.

2. extension ladder according to claim 1, it is characterized in that: each fixed bar moves down all inserted links and makes it to be placed in upper groove and lower groove simultaneously after corresponding connector rotation is a straight line, then by the engaged corresponding connecting rod extended configuration of realizing extension ladder.

3. extension ladder according to claim 1, is characterized in that: by the compressive state that inserted link is placed in completely under each fixed bar in groove, each fixed bar is all realized extension ladder near terraced bar around corresponding connector rotation and each connecting rod.