CN221032390U

CN221032390U - Press type buckle for telescopic ladder and telescopic ladder

Info

Publication number: CN221032390U
Application number: CN202321713447.4U
Authority: CN
Inventors: 张钊
Original assignee: Guangdong Qunwang Technology Co ltd
Current assignee: Guangdong Qunwang Technology Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-05-28
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a pressing type buckle for an extension ladder and the extension ladder, which comprise a main body, wherein one end of the main body is provided with a pivoting part, one end of the main body, which is far away from the pivoting part, is pivoted with a roller, and the central axis of the roller is parallel to the central axis of the pivoting part. The utility model can prevent the pressing type buckle from scraping the surface of the lower pedal or damaging the surface of the lower pedal when the upper pedal and the lower pedal are contracted and attached, and can avoid noise.

Description

Press type buckle for telescopic ladder and telescopic ladder

Technical Field

The utility model relates to a ladder, in particular to a pressing type buckle for an extension ladder and the extension ladder.

Background

The prior telescopic ladder structure generally comprises a plurality of sections of ladder sections which are sleeved with each other, wherein each ladder section comprises a ladder column, a pedal, a locking rod and a pressing type buckle, the locking rod is arranged between the pedal and the ladder column in a sliding manner, and the pressing type buckle is arranged below the pedal and can drive the locking rod to enter or exit the ladder column. The folding principle is that when the ladder is folded, the upper ladder column is folded into the lower adjacent ladder column, the upper pedal is close to and attached to the lower adjacent pedal, at the moment, the two pedals can be propped against the pressing type buckle, the locking rod in the pedal can be folded back through the rotation of the pressing type buckle, the third section of ladder column above the pressing type buckle is unlocked, the third section of ladder column can be folded into the lower ladder column adjacent to the third section of ladder column continuously, and therefore all ladder sections can be folded in sequence.

However, when the surface of the lower pedal of the existing telescopic ladder touches the pressing type buckle of the upper pedal, the lower pedal is in sliding friction contact with the bottom end of the pressing type buckle, so that the bottom end of the pressing type buckle is extremely easy to scratch or crush the surface of the lower pedal, and in addition, harsh noise is generated during friction, so that the use feeling is affected.

Disclosure of utility model

The utility model aims to provide a pressing type buckle for an extension ladder, which can prevent scraping or pressing the surface of a lower pedal and avoid noise when an upper pedal and a lower pedal are contracted and attached.

Another object of the present utility model is to provide an extension ladder that can prevent scratching or crushing of the surface of the lower tread when the upper and lower treads are contracted and attached.

In order to achieve the above purpose, the pressing type buckle for the telescopic ladder provided by the utility model comprises a main body, wherein one end of the main body is provided with a pivoting part, one end of the main body, which is far away from the pivoting part, is pivoted with a roller, and the central axis of the roller is parallel to the central axis of the pivoting part.

According to the utility model, the roller is pivoted at one end of the main body of the pressing type buckle away from the pivoting part, so that when the pressing type buckle is propped against the pedal, the roller on the pressing type buckle can be in rolling contact with the surface of the pedal, so that the pressing type buckle can rotate, the plate surface of the pedal can be prevented from being scratched or crushed by the pressing type buckle through the rolling contact of the roller and the pedal, sliding friction noise can not be generated due to the rolling contact, and the use experience is better.

Preferably, a groove body is formed at one end of the main body, which is far away from the pivoting part, the roller is arranged on the groove body, and the periphery of the roller protrudes out of the main body. Through setting up the cell body, can make the main body have more accommodation space accommodation gyro wheel, both make the structure compacter reasonable, reducible volume again.

Specifically, two opposite sides of one end of the main body far away from the pivoting part are extended with pivoting lugs, and the groove body is formed between the two pivoting lugs. By arranging the pivot lugs, the roller can be more easily mounted on the main body, and the convenience of assembly is improved.

Preferably, the main body is provided with a clamping part, and the clamping part is positioned at the opposite side of the same end of the pivoting part. The clamping part is arranged, so that the pressing type buckle can be conveniently clamped and connected with the locking rod, and the convenience of assembly is improved.

The telescopic ladder comprises a plurality of ladder sections which are arranged in a telescopic sleeving manner, wherein each ladder section comprises a pedal, ladder columns connected to two ends of the pedal, a locking rod and a pressing type buckle, and the locking rod is slidably arranged in the pedal and can extend into the ladder columns to lock the ladder columns of the previous ladder section; the pressing type buckle is pivoted to the lower side of the pedal and is connected with the locking rod, and when the pedal of the next ladder section abuts against the roller, the main body can drive the locking rod to withdraw from the ladder column of the previous ladder section so as to unlock the ladder column of the previous ladder section.

Preferably, the ladder section further comprises an elastic piece, wherein the elastic piece is arranged between the pedal and the pressing type buckle or between the pedal and the locking rod, so as to drive the pressing type buckle to reset.

Drawings

Fig. 1 is a perspective view of the telescopic ladder of the present utility model.

Fig. 2 is a sectional view of the telescopic ladder of the present utility model when contracted.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a structural view of the press button of the telescopic ladder of the present utility model engaged with the locking lever.

Fig. 5 is a perspective view of the press button of the telescopic ladder of the present utility model.

Detailed Description

In order to describe the technical content, the constructional features and the effects achieved by the present utility model in detail, the following description is made with reference to the embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 to 5, the telescopic ladder 100 of the present utility model comprises a plurality of ladder sections 101 arranged in telescopic sleeve connection, wherein the ladder sections 101 comprise a pedal 1, ladder columns 2 connected to two ends of the pedal 1, a locking rod 3 and a pressing type buckle 4; the upper end of the ladder column 2 is provided with a first through hole 21, and the lower end is provided with a second through hole 22; the locking rod 3 is slidably disposed in the pedal 1 and can extend into the ladder post 2 through the first through hole 21 to be inserted into the second through hole 22 of the ladder post 2 of the previous ladder section 101, so as to lock the ladder post 2 of the previous ladder section 101. The pressing type buckle 4 is pivoted to the lower side of the pedal 1 and is connected with the locking rod 3. The pressing type buckle 4 comprises a main body 41, one end of the main body 41 is provided with a pivoting portion 42, the pivoting portion 42 is pivoted to the lower side of the pedal 1, and the pivoting portion 42 is a rotating shaft extending to two sides of the main body 41. The pivoted central shaft is vertical to the length extending direction of the pedal 1; the main body 41 is pivoted with a roller 43 at one end far away from the pivoting portion 42, and a central axis of the roller 43 is parallel to a central axis of the pivoting portion 42. When the telescopic ladder 100 is contracted, the upper ladder section 101 approaches to the lower ladder section 101, and when the pedal 1 of the lower ladder section 101 presses the pressing buckle 4 of the pedal 1 of the upper ladder section 101, the roller 43 on the pressing buckle 4 is in rolling contact with the surface of the pedal 1 of the lower ladder section 101, so that the main body 41 of the pressing buckle 4 of the upper ladder section 101 rotates around the central axis of the pivot part 42, and the locking rod 3 can be driven to withdraw from the first through hole 21 of the ladder post 2 of the upper ladder section 101, so as to unlock the ladder post 2 of the upper ladder section 101.

Referring to fig. 5, a groove 41a is formed at an end of the main body 41 away from the pivot portion 42, the roller 43 is disposed on the groove 41a, and an outer periphery of the roller 43 protrudes outside the main body 41. By providing the groove 41a, the main body 41 can have more accommodating spaces for accommodating the rollers 43, so that the structure is more compact and reasonable, and the volume can be reduced. Specifically, pivot lugs 44 extend from opposite sides of one end of the main body 41 away from the pivot portion 42, and the slot 41a is formed between the pivot lugs 44. By providing the pivot lugs 44, the roller 43 can be more easily attached to the main body 41, and convenience in assembly can be improved.

Referring to fig. 4 and 5 again, the main body 41 is provided with a holding portion 45, the holding portion 45 is located at the opposite side of the same end of the pivot portion 42, and the holding portion 45 can swing around the central axis of the pivot portion 42. The locking rod 3 has a recess 31 on two opposite sides, the clamping portions 45 are in a sheet structure, and the two clamping portions 45 are respectively and correspondingly clamped in the recess 31 on the same side to clamp the locking rod 3. The clamping part 45 can enable the pressing type buckle 4 to be conveniently clamped and connected with the locking rod 3, so that the convenience of assembly is improved.

As shown in fig. 3, the ladder section 101 further includes an elastic member 5, where the elastic member 5 is disposed between the pedal 1 and the pressing buckle 4 or between the pedal 1 and the locking rod 3, so as to drive the pressing buckle 4 to return. According to the utility model, the elastic piece 5 is arranged between the pedal 1 and the locking rod 3, and the elastic piece 5 is a compression spring.

According to the utility model, the roller 43 is pivoted at one end of the main body 41 of the pressing type buckle 4 far away from the pivoting part 42, so that when the pressing type buckle 4 is abutted against the pedal 1, the roller 43 on the pressing type buckle 4 can be in rolling contact with the surface of the pedal 1, so that the pressing type buckle 4 can rotate, the plate surface of the pedal 1 can be prevented from being scratched or crushed by the pressing type buckle 4 through the rolling contact between the roller 43 and the pedal 1, sliding friction noise can not be generated due to the rolling contact, and the use experience is better.

The foregoing disclosure is merely illustrative of the principles of the present utility model, and thus, it is intended that the scope of the utility model be limited thereto and not by this disclosure, but by the claims appended hereto.

Claims

1. A press formula buckle for extension ladder, its characterized in that: the device comprises a main body, wherein one end of the main body is provided with a pivoting part, one end of the main body, which is far away from the pivoting part, is pivoted with a roller, and the central axis of the roller is parallel to the central axis of the pivoting part; the main body is far away from one end of the pivoting part and is provided with a groove body, the roller is arranged on the groove body, and the periphery of the roller protrudes out of the main body.

2. A press button for an extension ladder as defined in claim 1, wherein: the main body is far away from two opposite sides of one end of the pivoting part, and the pivoting lugs are extended to form the groove body between the two pivoting lugs.

3. A press button for an extension ladder as defined in claim 1, wherein: the main body is provided with a clamping part which is positioned on the opposite side of the same end of the pivoting part.

4. An extension ladder, characterized in that: the telescopic ladder comprises a plurality of ladder sections which are arranged in a telescopic sleeving manner, wherein each ladder section comprises a pedal, ladder columns connected to two ends of the pedal, a locking rod and the pressing type buckle hand according to any one of claims 1 to 3, and the locking rod is slidably arranged in the pedal and can extend into the ladder columns to lock the ladder columns of the previous ladder section; the pressing type buckle is pivoted to the lower side of the pedal and is connected with the locking rod, and when the pedal of the next ladder section abuts against the roller, the main body can drive the locking rod to withdraw from the ladder column of the previous ladder section so as to unlock the ladder column of the previous ladder section.

5. An extension ladder according to claim 4, wherein: the ladder section further comprises an elastic piece, wherein the elastic piece is arranged between the pedal and the pressing type buckle hand or between the pedal and the locking rod so as to drive the pressing type buckle hand to reset.