CN215718398U

CN215718398U - Bamboo joint ladder with stable structure

Info

Publication number: CN215718398U
Application number: CN202022249707.XU
Authority: CN
Inventors: 董凯菠; 陈妙仁; 鲍朱平
Original assignee: Zhejiang Aopeng Industry And Trading Co ltd
Current assignee: Zhejiang Aopeng Industry And Trading Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2022-02-01
Anticipated expiration: 2030-10-10

Abstract

The utility model provides a bamboo joint ladder with stable structure, it is firm inadequately to aim at solving the ladder when using, the problem that rocks appears easily, including the bamboo joint ladder body, the bamboo joint ladder body includes the flexible ladder frame of herringbone, flexible footboard, fixed footboard and balanced bracing piece, the flexible ladder frame of herringbone is formed by two front arms and two back pole combinations, two front arms correspond with two back pole positions respectively, the front arm includes head tube and preceding bracing strut from top to bottom, the back pole includes back tube and back bracing strut from top to bottom, the holding tank has been seted up to one side that is close to back bracing strut on the front bracing strut, it is connected with the telescopic connection spare that is used for connecting front bracing strut and back bracing strut to rotate in the holding tank, one side that is close to the front bracing strut on the back bracing strut is provided with the fixed knot structure who is used for fixed telescopic connection spare. The utility model improves the stability of the bamboo joint ladder body in use and prevents the bamboo joint ladder body from shaking.

Description

Bamboo joint ladder with stable structure

Technical Field

The utility model relates to the technical field of ladders, in particular to a bamboo joint ladder with a stable structure.

Background

The extension ladder can be extended and shortened like a fishing rod, is very convenient to carry and store, and can be placed in a closet, a study room, a bed bottom or a trunk of an automobile.

The existing extension ladder is not reasonable in structural design, common in appearance, novel and unique in shape, large in size, relatively small in occupied space, single in function, not stable enough during use, easy to shake, extremely unsafe and difficult to meet the use requirements of people.

Chinese patent with publication number CN204754734U discloses a novel portable safe extension ladder, be provided with safety protection locking device between the both sides support frame of herringbone extension ladder frame, safety protection locking device's both ends respectively with the joint spare fixed connection on the telescopic connection spare of both sides support frame, all the cover is equipped with telescopic connection spare on the several telescopic connection spare, and telescopic connection spare's one end passes through screw fixed mounting on the bracing piece, the cover is equipped with the anticollision condom on the telescopic connection spare, and one side of anticollision condom is fixed with the telescopic connection spare joint, the another side of anticollision condom is provided with the anticollision circle, the lower extreme of herringbone extension ladder frame body is provided with balanced bracing piece, the joint has wheel carrier on the balanced bracing piece, be provided with the wheel on the wheel carrier. The utility model discloses a through increasing safety protection locking device and buffer stop, can make the ladder be difficult for appearing the phenomenon of rocking when using, better fixed ladder.

Meanwhile, the utility model also provides a technical scheme for solving the problems that the ladder is not stable enough and is easy to shake when in use.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to solve the problems that the ladder is not stable enough and easy to shake when in use, and provides the bamboo joint ladder with a stable structure.

The utility model provides a bamboo joint ladder with stable structure, includes bamboo joint ladder body, bamboo joint ladder body includes herringbone telescopic ladder frame, flexible footboard, fixed footboard and balanced bracing piece, herringbone telescopic ladder frame is formed by two front arms and two back pole combinations, two the front arms correspond with two back pole positions respectively, the front arm includes head tube and preceding supporting pillar from top to bottom, the back pole includes back tube and back supporting pillar from top to bottom, the holding tank has been seted up to one side that is close to the back supporting pillar on the preceding supporting pillar, it is connected with the expansion joint spare that is used for connecting preceding supporting pillar and back supporting pillar to rotate in the holding tank, one side that is close to the preceding supporting pillar on the back supporting pillar is provided with the fixed knot who is used for fixed expansion joint spare and constructs.

Through adopting above-mentioned technical scheme, after the expansion of herringbone extension ladder frame, contained angle between preceding pole and the back pole enlarges, distance side length between preceding supporting column and the back supporting column, at this moment, with the length of rotating out telescopic connection spare from the holding groove, and adjust telescopic connection spare's length according to the distance between preceding supporting column and the back supporting column, telescopic connection spare is connected with fixed knot structure, can get up preceding supporting column and back supporting column connection, thereby fix preceding pole and back pole, the preceding pole, back pole and telescopic connection spare constitute a triangle-shaped structure, the stability of bamboo joint ladder body when using has been promoted, prevent that the bamboo joint ladder body from appearing rocking.

The utility model further comprises the following steps: the telescopic connecting piece comprises a bottom block, a rotating block, an electric push rod and a connecting structure, the bottom end of the bottom block is fixedly connected with the groove wall of the accommodating groove, a rotating groove is formed in the top end of the bottom block, a rotating pin is arranged in the rotating groove, the bottom end of the rotating block is inserted into the rotating groove and sleeved outside the rotating pin, and the shell of the electric push rod is fixedly connected with the top end of the rotating block.

Through adopting above-mentioned technical scheme, the turning block rotates in rotating the groove round the rotating pin, and electric putter's shell and turning block fixed connection when needs rotate electric putter out from holding the groove, the staff hold and rotate electric putter can. When the electric push rod is started, the electric push rod extends to drive the connecting structure to move towards the fixing structure, so that the connecting structure can be fixed on the fixing structure quickly and conveniently.

The utility model further comprises the following steps: the connecting structure is a lobster buckle, and the fixing structure is a buckle ring.

Through adopting above-mentioned technical scheme, connection structure passes through the form of lobster buckle hasp on the buckle and is connected with fixed knot structure realization, and the process of connection is simple and convenient.

The utility model further comprises the following steps: the connecting block is connected between the push rod of the electric push rod and the connecting structure, the bottom end of the connecting block is fixedly connected with the push rod of the electric push rod, and the top end of the connecting block is rotatably connected with the connecting structure.

Through adopting above-mentioned technical scheme, connection structure can rotate to can adjust connection structure's direction, connection structure can follow and send each direction and be connected with fixed knot structure.

The utility model further comprises the following steps: a groove is formed in one side, close to the front support column, of the rear support column, and the fixing structure is located in the groove.

By adopting the technical scheme, the fixing structure is positioned in the groove, so that when the herringbone telescopic ladder frame is folded, the front support column is pressed on the fixing structure to crush the fixing structure.

The utility model further comprises the following steps: the cross section of the groove is in the shape of an arc which is sunken towards the rear supporting column.

Through adopting above-mentioned technical scheme, connection structure can get into in the recess more smoothly.

The utility model further comprises the following steps: still be provided with the plastics fastener in the holding tank, the plastics fastener is including being used for the card cover at the outside snap ring of electric putter and being used for the fixing base of fixed connection on the cell wall of holding tank, the one end and the fixing base fixed connection of snap ring, the opening has been seted up to the other end of snap ring.

Through adopting above-mentioned technical scheme, when electric putter rotated back the holding tank again, because the plastics fastener has elasticity, electric putter passes through in the opening gets into the snap ring, thereby the snap ring cramps electric putter and fixes electric putter in the holding tank, prevents that electric putter from rolling out automatically.

The utility model further comprises the following steps: and a reinforcing sheet which is obliquely arranged is connected between the balance supporting rod and the fixed pedal.

Through adopting above-mentioned technical scheme, the stability of bamboo joint ladder body has further been strengthened to the enhancement piece that the slope set up.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a bamboo joint ladder with stable structure, after the expansion of herringbone extension ladder frame, contained angle between preceding pole and the back pole enlarges, distance side length between preceding supporting column and the back supporting column, at this moment, with the extension joint spare roll out from accommodating the groove, and adjust the length of extension joint spare according to the distance between preceding supporting column and the back supporting column, extension joint spare is connected with fixed knot structure, can get up preceding supporting column and back supporting column connection, thereby fix preceding pole and back pole, preceding pole, back pole and extension joint spare constitute a triangle-shaped structure, the stability of bamboo joint ladder body when using has been promoted, prevent that the bamboo joint ladder body from appearing rocking.

Drawings

FIG. 1 is a schematic view of a bamboo ladder with a stable structure according to the present invention;

FIG. 2 is a side view of a bamboo ladder with stabilizing structure of the present invention;

FIG. 3 is an enlarged cross-sectional view taken at A in FIG. 2;

FIG. 4 is a schematic structural view of a telescopic connecting piece of the bamboo ladder with a stable structure;

fig. 5 is a schematic structural view of the plastic fastener of the bamboo joint ladder with a stable structure.

Reference numerals: 1. a retractable pedal; 2. fixing the pedal; 3. balancing the supporting rod; 4. a front bar; 5. a rear bar; 6. a head tube; 7. a front support column; 8. a rear tube; 9. a rear support column; 10. accommodating grooves; 11. a telescopic connecting piece; 12. a fixed structure; 13. a bottom block; 14. rotating the block; 15. an electric push rod; 16. a connecting structure; 17. connecting blocks; 18. a groove; 19. a plastic fastener; 20. a snap ring; 21. a fixed seat; 22. opening the gap; 23. a reinforcing sheet; 24. a rotating groove; 25. and rotating the pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A bamboo joint ladder with a stable structure is shown in figures 1-5 and comprises a bamboo joint ladder body, wherein the bamboo joint ladder body comprises a herringbone telescopic ladder frame, a telescopic pedal 1, a fixed pedal 2 and a balance supporting rod 3. The position relationship and the connection relationship among the herringbone telescopic ladder frame, the telescopic pedal 1, the fixed pedal 2 and the balance support rod 3 are mature prior art, and are not described herein, and a novel portable safety telescopic ladder is disclosed in the Chinese patent with the reference publication number of CN 204754734U. Herringbone telescopic ladder frame is formed by two front rods 4 and two rear rods 5 in a combined mode, two front rods 4 correspond to two rear rods 5 respectively, front rods 4 comprise front tubes 6 and front support columns 7 from top to bottom, rear rods 5 comprise rear tubes 8 and rear support columns 9 from top to bottom, an accommodating groove 10 is formed in one side, close to rear support columns 9, of front support columns 7, an expansion connecting piece 11 used for connecting front support columns 7 and rear support columns 9 is connected in a rotating mode in accommodating groove 10, a plastic clamping piece 19 used for fixing expansion connecting piece 11 is further arranged in accommodating groove 10, a groove 18 is formed in one side, close to front support columns 7, of rear support columns 9, the cross-sectional shape of groove 18 is an arc sunken in rear support columns 9, and fixing structures 12 used for fixing expansion connecting pieces 11 are fixed in groove 18.

The telescopic connection piece 11 comprises a bottom block 13, a rotating block 14, an electric push rod 15, a connection structure 16, the bottom end of the bottom block 13 is fixedly connected with the groove wall of the accommodating groove 10, a rotating groove 24 is formed in the top end of the bottom block 13, a rotating pin 25 is arranged in the rotating groove 24, the bottom end of the rotating block 14 is inserted into the rotating groove 24 and sleeved outside the rotating pin 25, the shell of the electric push rod 15 is fixedly connected with the top end of the rotating block 14, a connecting block 17 is fixed on the push rod of the electric push rod 15, the top end of the connecting block 17 is rotatably connected with the connection structure 16, the connection structure 16 is a lobster buckle, the fixing structure 12 is a buckle ring, the lobster buckle and the buckle ring are mature prior art, and specific description is not made herein.

The plastic clamping piece 19 comprises a clamping ring 20 used for clamping the outer part of the electric push rod 15 and a fixing seat 21 used for fixedly connecting the clamping ring 20 to the groove wall of the accommodating groove 10, one end of the clamping ring 20 is fixedly connected with the fixing seat 21, and the other end of the clamping ring 20 is provided with a notch 22.

Additionally, a reinforcing sheet 23 obliquely arranged is connected between the balance support rod 3 and the fixed pedal 2, and two ends of the reinforcing sheet 23 are respectively fixed on the balance support rod 3 and the fixed pedal 2 in a riveting manner. The reinforcing piece 23 that the slope set up has further strengthened the stability of bamboo joint ladder body.

The working principle is as follows: when the herringbone telescopic ladder frame is unfolded, the included angle between the front rod 4 and the rear rod 5 is enlarged, the distance between the front support column 7 and the rear support column 9 is long, at the moment, a worker firstly extends fingers into the accommodating groove 10 to hold and rotate the electric push rod 15, the rotating block 14 rotates in the rotating groove 24 around the rotating pin 25, the shell of the electric push rod 15 is fixedly connected with the rotating block 14, and the electric push rod 15 can smoothly rotate. Electric putter 15 rotates out from snap ring 20 through opening 22's expansion under the effect of power, and go out holding tank 10, rotate electric putter 15 to just the position to the buckle, start electric putter 15, electric putter 15 extension can drive lobster buckle to the buckle removal, lobster buckle can be connected preceding support post 7 and back support post 9 fast conveniently on the buckle, thereby fix preceding pole 4 and back pole 5, preceding pole 4, back pole 5 and telescopic connection 11 constitute a triangle-shaped structure, the stability of bamboo joint ladder body when using has been promoted, prevent that the appearance of bamboo joint ladder body from rocking. In a similar way, when needs receipts herringbone telescopic ladder, unbuckle down from the buckle with lobster buckle earlier, shrink electric putter 15 and with electric putter 15 turn back in holding tank 10 can, in electric putter 15 turns back in holding tank 10 in addition through opening 22 entering snap ring 20, thereby snap ring 20 cramps electric putter 15 and fixes electric putter 15 in holding tank 10, prevents that electric putter 15 from rotating out automatically.

The utility model improves the stability of the bamboo joint ladder body in use and prevents the bamboo joint ladder body from shaking.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a bamboo joint ladder with stable structure, includes bamboo joint ladder body, bamboo joint ladder body includes flexible ladder rack of herringbone, flexible footboard (1), fixed footboard (2) and balanced bracing piece (3), flexible ladder rack of herringbone is formed by two front arms (4) and two back pole (5) combinations, two front arms (4) correspond with two back pole (5) positions respectively, front arms (4) include head tube (6) and preceding support column (7) from top to bottom, back pole (5) include back tube (8) and back support column (9) from top to bottom, its characterized in that: holding tank (10) have been seted up to one side that is close to back supporting column (9) on preceding supporting column (7), swivelling joint has expansion joint spare (11) that are used for connecting preceding supporting column (7) and back supporting column (9) in holding tank (10), one side that is close to preceding supporting column (7) on back supporting column (9) is provided with fixed knot structure (12) that are used for fixed expansion joint spare (11).

2. The bamboo joint ladder with stable structure of claim 1, characterized in that: the telescopic connecting piece (11) comprises a bottom block (13), a rotating block (14), an electric push rod (15) and a connecting structure (16), the bottom end of the bottom block (13) is fixedly connected with the groove wall of the accommodating groove (10), a rotating groove (24) is formed in the top end of the bottom block (13), a rotating pin (25) is arranged in the rotating groove (24), the bottom end of the rotating block (14) is inserted into the rotating groove (24) and sleeved outside the rotating pin (25), and the shell of the electric push rod (15) is fixedly connected with the top end of the rotating block (14).

3. The bamboo joint ladder with stable structure of claim 2, characterized in that: the connecting structure (16) is a lobster buckle, and the fixing structure (12) is a buckle ring.

4. The bamboo joint ladder with stable structure of claim 3, characterized in that: connecting blocks (17) are connected between the push rods of the electric push rods (15) and the connecting structures (16), the bottom ends of the connecting blocks (17) are fixedly connected with the push rods of the electric push rods (15), and the top ends of the connecting blocks (17) are rotatably connected with the connecting structures (16).

5. The bamboo joint ladder with stable structure of claim 1, characterized in that: one side, close to the front support column (7), of the rear support column (9) is provided with a groove (18), and the fixing structure (12) is located in the groove (18).

6. The bamboo joint ladder with stable structure of claim 5, characterized in that: the cross section of the groove (18) is in the shape of an arc which is sunken towards the rear supporting column (9).

7. The bamboo joint ladder with stable structure of claim 2, characterized in that: still be provided with plastics fastener (19) in holding tank (10), plastics fastener (19) are including being used for card cover at outside snap ring (20) of electric putter (15) and being used for fixing connection fixing base (21) on the cell wall of holding tank (10), the one end and fixing base (21) fixed connection of snap ring (20), opening (22) have been seted up to the other end of snap ring (20).

8. The bamboo joint ladder with stable structure of claim 1, characterized in that: and a reinforcing sheet (23) which is obliquely arranged is connected between the balance supporting rod (3) and the fixed pedal (2).