CN210530716U

CN210530716U - Foldable herringbone ladder

Info

Publication number: CN210530716U
Application number: CN201921059557.7U
Authority: CN
Inventors: 黄子麟
Original assignee: Guangdong Hongjun Construction Engineering Co Ltd
Current assignee: Guangdong Hongjun Construction Engineering Co Ltd
Priority date: 2019-07-06
Filing date: 2019-07-06
Publication date: 2020-05-15
Anticipated expiration: 2029-07-06

Abstract

The utility model relates to a ladder field, more specifically says, it relates to a folding double ladder. The key points of the technical scheme are as follows: including the mutual articulated ladder body in two tops, the ladder body includes two parallel arrangement's stand and sets up in two a plurality of horizontal poles between the stand, the stand includes first stand and second stand, the top of first stand articulates in the bottom of second stand, the cover is equipped with the sleeve on the first stand, the sleeve can be followed first stand sliding to the articulated department between first stand and the second stand, telescopic one end is provided with and is used for fixing the sleeve at the first mounting of first stand, and the other end is provided with and is used for fixing the sleeve at the second mounting of second stand. According to the technology, the first stand column is hinged to the second stand column, so that the first stand column can be turned over to the second stand column around a hinged point in the process of carrying the herringbone ladder, the length of the herringbone ladder is shortened, and the herringbone ladder is convenient to carry.

Description

Foldable herringbone ladder

Technical Field

The utility model relates to a ladder field, more specifically says, it relates to a folding double ladder.

Background

A herringbone ladder: a climbing tool for finishing work and the like in a space above a plane, such as a roof. When the ladder is used, the front ladder rod, the rear ladder rod and the ground form an isosceles triangle which looks like a Chinese character 'ren', so that the ladder is called as a herringbone ladder. The double ladder generally comprises two relative pivoted ladder framves, can fold, takes up an area of for a short time, is convenient for accomodate, and light in weight removes conveniently, during the use, expandes two ladder framves and is the chevron shape, need not to lean on just can use on other objects, in addition, when can't satisfy the condition that the double ladder expanded and place to partial bottom surface, can fold the double ladder into a word ladder and use.

A herringbone ladder in the prior art comprises a fixed herringbone ladder and a movable herringbone ladder. The fixed herringbone ladder is a temporary building tool for people; the movable herringbone ladder connects the tops of two ladders together by hinges, can be combined when moving, and is widely applied to electrician operation due to the flexibility of the movable herringbone ladder. The early herringbone ladder is generally made of wood, and along with the development of the metal industry, aluminum alloy materials are mostly utilized at present; the aluminum alloy herringbone ladder has the characteristics of lightness, attractiveness, durability and low manufacturing cost, and is widely used.

In the prior art, the herringbone ladders used by people in daily life are generally provided with the herringbone ladders with different heights according to requirements, but in practical application, the herringbone ladders have certain lengths, so that the herringbone ladders are inconvenient to carry, and therefore the herringbone ladders need to be improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a folding double ladder to solve the inconvenient problem of double ladder in handling among the prior art.

The utility model discloses a technical scheme realize like this: a foldable herringbone ladder comprises two ladder bodies with top ends hinged to each other, wherein each ladder body comprises two parallel upright columns and a plurality of cross rods arranged between the two upright columns, each upright column comprises a first upright column and a second upright column, the top end of each first upright column is hinged to the bottom end of the corresponding second upright column, a sleeve is sleeved on each first upright column, when the central axes of the first upright column and the second upright column are overlapped, each sleeve can slide to the hinged position between the first upright column and the corresponding second upright column along the corresponding first upright column, a first fixing piece used for fixing the sleeve on the first upright column is arranged at one end of each sleeve, and a second fixing piece used for fixing the sleeve on the corresponding second upright column is arranged at the other end of each sleeve.

By adopting the technical scheme, when the herringbone ladder is required to be used, the first upright post can be turned to enable the central axes of the first upright post and the second upright post to coincide, the sleeve is driven to slide to a hinge point between the first upright post and the second upright post along the length direction of the first upright post, one end of the sleeve is fixed on the first upright post through the first fixing piece, the other end of the sleeve is fixed on the second upright post through the second fixing piece, and therefore the first upright post and the second upright post are spliced into the long-strip-shaped upright post; on the contrary, when the double ladder needs to be carried, the first fixing piece and the second fixing piece can be unlocked respectively, then the sleeve is slid onto the first upright post or the second upright post, and the first upright post can be turned over to enable the first upright post and the second upright post to be in a folded state, so that the double ladder is convenient for operators to carry.

As a further improvement of the present invention, the first fixing member includes a first slot disposed on a side wall of the first upright and a first insertion rod inserted into the first slot, a first through hole corresponding to the first slot is disposed on a side wall of the sleeve, and the first insertion rod can pass through the first through hole;

the second fixing piece comprises a second slot arranged on the side wall of the second upright column and a second inserted bar in inserting fit with the second slot, a second through hole corresponding to the second slot is formed in the side wall of the sleeve, and the second inserted bar can pass through the second through hole.

Through adopting foretell technical scheme, when using the double ladder, can overturn first stand and make the axis coincidence of first stand and second stand, then the driving sleeve slides to the pin joint between first stand and the second stand along the length direction of first stand, make first perforation and second perforation correspond respectively and align with first slot and second slot, can pass first perforation and insert the first slot with first inserted bar this moment, the second inserted bar passes the second perforation and inserts in the second slot, and then realize the fixed of first stand and second stand.

As a further improvement of the present invention, the ends of the first insertion rod and the second insertion rod are respectively provided with a first pull ring and a second pull ring.

Through adopting foretell technical scheme, add first pull ring and second pull ring operating personnel and stimulate first inserted bar and second inserted bar and then unlock the sleeve to the transport of the further double ladder of being convenient for is folded to the ladder body to the convenience.

As a further improvement, the telescopic inner wall is seted up the spout that one end is the opening setting, it is provided with the slider to slide in the spout, the locked groove has been seted up to the lateral wall of first stand, the slider can insert the access the locked groove, be provided with the spring between the blind end of spout and the slider, the spring is used for providing the slider and removes to inserting along the spout the power of locked groove, the axis coincidence of first stand and second stand, just the slider is pegged graft and is cooperated when the locked groove, first slot aligns with first perforation, the second slot aligns with the second perforation.

Through adopting foretell technical scheme, when using the double ladder, the first stand that can overturn makes the axis coincidence of first stand and second stand, then the length direction of drive sleeve along first stand slides to the pin joint between first stand and the second stand, when the locked groove of spout on the sleeve and first stand lateral wall aligns, the cooperation of pegging graft of spring drive slider and locked groove, make the sleeve fix on first stand, make first slot and first perforation align, the second slot aligns with the second perforation, and then make things convenient for operating personnel to fix first stand and second stand.

As a further improvement, the side wall of the slider is provided with a shifting block, and the side wall of the sleeve is provided with a strip-shaped groove for sliding the shifting block.

Through adopting foretell technical scheme, the operating personnel of being convenient for stir the shifting block and make the slider move along the blind end of spout, and then make the slider withdraw from the locked groove.

As a further improvement, a pair of mutually attracted magnets is correspondingly arranged between the bottoms of the first insertion rod and the first slot and between the bottoms of the second insertion rod and the second slot.

By adopting the technical scheme, the first inserting rod can be stably kept in the first inserting groove, and the second inserting rod can be stably kept in the second inserting groove, so that the firmness of the herringbone ladder is improved.

As a further improvement, the side wall of the second stand is provided with a clamping groove, when the first stand is turned over and attached to the second stand, the sleeve joint is matched with the clamping groove.

Through adopting foretell technical scheme, the draw-in groove is seted up to the lateral wall of second stand and is made first stand and second stand be in fold condition, and the sleeve can the joint in the draw-in groove, and then makes things convenient for operating personnel's transport.

As a further improvement of the utility model, the bottom of first stand is provided with the slipmat.

Through adopting foretell technical scheme, add the frictional force between the multiplicable first stand of slipmat and ground, and then make when using the double ladder, the double ladder is difficult to take place to skid and then causes the incident.

To sum up, the utility model discloses following beneficial effect has:

1. when the herringbone ladder is used, the first upright post can be turned to enable the central axes of the first upright post and the second upright post to coincide, then the sleeve is driven to slide to a hinge point between the first upright post and the second upright post along the length direction of the first upright post, so that the first through hole and the second through hole are respectively aligned with the first slot and the second slot correspondingly, at the moment, the first inserted link can penetrate through the first through hole and be inserted into the first slot, the second inserted link penetrates through the second through hole and is inserted into the second slot, and the first upright post and the second upright post are further fixed;

2. the lateral wall of second stand is seted up the draw-in groove and is made first stand and second stand be in fold condition, and the sleeve can the joint in the draw-in groove, and then makes things convenient for operating personnel's transport.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view showing the fitting relationship between the sleeve and the first column and between the sleeve and the second column in the present embodiment;

FIG. 3 is an enlarged view of a portion of the first post of FIG. 2;

FIG. 4 is a schematic view of the inner structure of the column of the present embodiment after being cut;

fig. 5 is an enlarged view of a portion of the second post of fig. 4.

In the figure: 1. a ladder body; 2. a column; 21. a first upright post; 22. a second upright post; 3. a cross bar; 4. a sleeve; 5. a first slot; 6. a first plunger; 61. a first pull ring; 7. a first perforation; 8. a second slot; 9. a second plunger; 91. a second tab; 10. a second perforation; 11. a chute; 12. a slider; 13. locking the groove; 14. a spring; 15. shifting blocks; 16. a strip-shaped groove; 17. a card slot; 18. a non-slip mat; 19. a connecting plate.

Detailed description of the preferred embodiments

The present invention will be described in further detail with reference to the accompanying drawings.

A foldable herringbone ladder is shown in figures 1 and 2 and comprises two ladder bodies 1, connecting plates 19 are mounted at the top ends of the two ladder bodies 1, and the two connecting plates 19 are hinged to each other. Specifically, the ladder body 1 comprises two parallel upright posts 2 and four cross rods 3 fixedly arranged between the two upright posts 2. Wherein, stand 2 is including being the first stand 21 that rectangular shape set up and being the second stand 22 that rectangular shape set up, and the bottom of first stand 21 installs slipmat 18, and the top of first stand 21 is articulated mutually with the bottom of second stand 22. The first upright post 21 is also sleeved with a sleeve 4, and the sleeve 4 can slide along the length direction of the first upright post 21. When the central axes of the first upright column 21 and the second upright column 22 coincide, that is, the first upright column 21 and the second upright column 22 are connected end to form the elongated upright column 2, the sleeve 4 can slide along the first upright column 21 to the hinge joint between the first upright column 21 and the second upright column 22.

Simultaneously, the lateral wall of second stand 22 seted up with sleeve 4's lateral wall joint complex draw-in groove 17, when first stand 21 around the pin joint upset, can be with sleeve 4's lateral wall joint in draw-in groove 17, and then make first stand 21 can paste and fix on second stand 22 for when carrying the double ladder, relative rotation can not take place for first stand 21 and second stand 22, further make things convenient for operating personnel to carry.

Further, as shown in fig. 2, one end of the sleeve 4 is provided with a first fixing member for fixing the sleeve 4 to the first column 21, and the other end is provided with a second fixing member for fixing the sleeve 4 to the second column 22. When the central axes of the first upright column 21 and the second upright column 22 coincide, the sleeve 4 can be fixed at the hinged position between the first upright column 21 and the second upright column 22 through the first fixing piece and the second fixing piece, so that the sleeve 4 limits the top end of the first upright column 21 and the bottom end of the second upright column 22, and the first upright column 21 and the second upright column 22 cannot turn around the hinged point.

Specifically, as shown in fig. 2 and 3, the first fixing member includes a first slot 5 formed in a side wall of the first column 21 and a first insertion rod 6 inserted into the first slot 5, a first through hole 7 corresponding to the first slot 5 is formed in a side wall of the sleeve 4, and the first insertion rod 6 can pass through the first through hole 7. The first inserting rod 6 passes through the first through hole 7 and is inserted into the first inserting groove 5, so that one end of the sleeve 4 is fixed on the first upright post 21. In order to stably hold the first inserting rod 6 in the first slot 5, a pair of magnets (not shown) attracted to each other is additionally arranged between the first inserting rod 6 and the bottom of the first slot 5, wherein one magnet is arranged at the end of the first inserting rod 6, and the other magnet is arranged at the bottom of the first slot 5.

The second fixing member includes a second slot 8 formed in a side wall of the second column 22 and a second insertion rod 9 inserted into the second slot 8, a second through hole 10 corresponding to the second slot 8 is formed in a side wall of one end of the sleeve 4, which is far away from the first through hole 7, and the second insertion rod 9 can pass through the second through hole 10. The second inserting rod 9 passes through the second through hole 10 and is inserted into the second inserting groove 8, so that the other end of the sleeve 4 is fixed on the second upright column 22. In order to stably hold the second inserting rod 9 in the second slot 8, a pair of magnets (not shown in the figure) attracted to each other is additionally arranged between the second inserting rod 9 and the bottom of the second slot 8, wherein one magnet is arranged at the end of the second inserting rod 9, and the other magnet is arranged at the bottom of the second slot 8.

In addition, in order to facilitate the operator to pull the first insertion rod 6 and the second insertion rod 9 to unlock the first fixing element and the second fixing element, a first pull ring 61 and a second pull ring 91 are correspondingly disposed at the end portions of the first insertion rod 6 and the second insertion rod 9, respectively.

Meanwhile, as shown in fig. 4 and 5, the inner wall of the sleeve 4 is provided with a sliding groove 11 with an opening at one end, a sliding block 12 is slidably arranged in the sliding groove 11, a locking groove 13 is formed in the side wall of the first upright post 21, and the end of the sliding block 12 can be inserted into the locking groove 13. A spring 14 is further installed between the closed end of the sliding chute 11 and the sliding block 12, and the spring 14 is used for providing force for the sliding block 12 to move along the sliding chute 11 to be inserted into the locking groove 13; one end of the spring 14 is connected to the closed end of the slide groove 11, and the other end is connected to the slider 12. Referring to fig. 3, when the central axes of the first upright column 21 and the second upright column 22 coincide and the sliding block 12 is in inserting engagement with the locking groove 13, the first slot 5 is aligned with the first through hole 7, and the second slot 8 is aligned with the second through hole 10, so that the operator can insert the first inserting rod 6 and the second inserting rod 9 into the first slot 5 and the second slot 8 respectively, and further fix the first upright column 21 and the second upright column 22.

In addition, as shown in fig. 4 and 5, a shifting block 15 for driving the sliding block 12 to slide along the sliding slot 11 is further fixedly disposed on the side wall of the sliding block 12, and a strip-shaped groove 16 for the shifting block 15 to slide is opened on the side wall of the sleeve 4. The shifting block 15 is additionally arranged, so that an operator can conveniently shift the shifting block 15 to enable the sliding block 12 to move along the closed end of the sliding groove 11, and the sliding block 12 can exit from the locking groove 13.

The overall working process is as follows: when the herringbone ladder is needed to be used, the first upright post 21 can be turned to enable the central axes of the first upright post 21 and the second upright post 22 to coincide, the sleeve 4 is driven to slide to a hinge point between the first upright post 21 and the second upright post 22 along the length direction of the first upright post 21, when the sliding groove 11 in the inner wall of the sleeve 4 slides to be aligned with the locking groove 13 in the side wall of the first upright post 21, the spring 14 drives the sliding block 12 to be in inserted fit with the locking groove 13, then one end of the sleeve 4 is fixed on the first upright post 21 through the first fixing piece, the other end of the sleeve 4 is fixed on the second upright post 22 through the second fixing piece, the first upright post 21 and the second upright post 22 are spliced into the long strip-shaped upright post 2, meanwhile, the sleeve 4 limits the first upright post 21 and the second upright post 22 and is fixed through the first fixing piece and the second fixing piece, so that the first upright post 21 and the second upright post 22 cannot turn, thereby affecting the use; on the contrary, when the double ladder needs to be carried, the first fixing piece and the second fixing piece can be unlocked respectively, then the sleeve 4 is slid onto the first upright post 21 or the second upright post 22, and the first upright post 21 can be turned over to enable the first upright post 21 and the second upright post 22 to be in a folded state, so that the double ladder is convenient for operators to carry.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and the skilled person in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims of the present invention.

Claims

1. A foldable herringbone ladder comprises two ladder bodies (1) with top ends hinged with each other, and is characterized in that: the ladder body (1) includes two parallel arrangement's stand (2) and sets up in two a plurality of horizontal poles (3) between stand (2), stand (2) are including first stand (21) and second stand (22), the top of first stand (21) articulates in the bottom of second stand (22), the cover is equipped with sleeve (4) on first stand (21), when first stand (21) coincide with the axis of second stand (22), sleeve (4) can be followed first stand (21) and slided to the articulated department between first stand (21) and second stand (22), the one end of sleeve (4) is provided with and is used for fixing sleeve (4) at the first mounting of first stand (21), and the other end is provided with and is used for fixing sleeve (4) at the second stand (22) second fixing department.

2. A foldable herringbone ladder as claimed in claim 1, wherein: the first fixing piece comprises a first slot (5) arranged on the side wall of the first upright post (21) and a first inserted bar (6) in inserting fit with the first slot (5), a first through hole (7) corresponding to the first slot (5) is formed in the side wall of the sleeve (4), and the first inserted bar (6) can pass through the first through hole (7);

the second fixing piece comprises a second slot (8) arranged on the side wall of the second upright post (22) and a second inserted bar (9) in inserting fit with the second slot (8), a second through hole (10) corresponding to the second slot (8) is formed in the side wall of the sleeve (4), and the second inserted bar (9) can pass through the second through hole (10).

3. A foldable herringbone ladder as claimed in claim 2, wherein: the end parts of the first insert rod (6) and the second insert rod (9) are respectively provided with a first pull ring (61) and a second pull ring (91) correspondingly.

4. A foldable herringbone ladder as claimed in claim 3, wherein: the utility model discloses a lock sleeve, including sleeve (4), spout (11), slider (12), spring (14), slider (12) are used for providing slider (12), and the power of pegging graft income along spout (11), first stand (12) can insert into lock groove (13), be provided with between the blind end of spout (11) and slider (12), spring (14) are used for providing slider (12) and move to pegging graft along spout (11) and go into lock groove (13), the axis coincidence of first stand (21) and second stand (22), just slider (12) are pegged graft and are cooperated when lock groove (13), first slot (5) align with first perforation (7), second slot (8) align with second perforation (10).

5. A foldable herringbone ladder as claimed in claim 4, wherein: the side wall of the sliding block (12) is provided with a shifting block (15), and the side wall of the sleeve (4) is provided with a strip-shaped groove (16) for the shifting block (15) to slide.

6. A foldable herringbone ladder as claimed in claim 2, wherein: a pair of magnets which attract each other are correspondingly arranged between the first inserting rod (6) and the bottom of the first slot (5) and between the second inserting rod (9) and the bottom of the second slot (8).

7. A foldable herringbone ladder as claimed in claim 1, wherein: draw-in groove (17) have been seted up to the lateral wall of second stand (22), when first stand (21) upset is laminated in second stand (22), sleeve (4) joint cooperate in draw-in groove (17).

8. A foldable herringbone ladder as claimed in claim 1, wherein: the bottom end of the first upright post (21) is provided with a non-slip mat (18).