Ladder with foldable handrails

Abstract

The utility model discloses a ladder with foldable handrails. The ladder comprises a ladder body, the handrails and connecting pieces, the connecting piece comprises a rod body; one end of the rod body is rotationally connected with the ladder body, and the other end of the rod body is rotationally connected with a handrail; a locking piece is further arranged on the rod body, and through rotation of the locking piece on the rod body, one end of the locking piece abuts against the handrail to prevent the handrail from rotating on the connecting piece or abuts against the ladder body to prevent the connecting piece from rotating on the ladder body. The locking piece rotates on the rod body until one end of the locking piece abuts against the handrail or the ladder body, so that the handrail can be prevented from rotating on the rod body or the connecting piece can be prevented from rotating on the ladder body. On the basis, through the single rotating action, locking after the armrest is unfolded or locking after the armrest is folded can be easily, conveniently and rapidly completed, and therefore the equipment has the advantages of being easy to operate and convenient and rapid to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to daily necessities technical field, concretely is a handrail foldable ladder. BACKGROUND

[0002] Through the retrieval, found the prior art of application No. 201721927987.7, although it can also realize the folding of the handrail on the ladder body, however through its working principle, namely: folding: the lock catch pull ring is pulled outward, is unlocked, arrives in place, the handrail pipe is pushed upward, when pushing in place, it is the folding state. Unfold: directly push the handrail pipe downward, when the lock catch is popped into the plastic elastic catch's elastic hole, it is the opening state, at this moment, it must be unlocked to fold.

[0003] Therefore, it is not difficult to see that it completely depends on the lock catch structure when realizing the handrail locking, and more operation steps are needed when using the lock catch structure, resulting in that the unfolding and folding of the handrail are more troublesome. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a handrail foldable ladder to solve the problems in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a handrail foldable ladder, which comprises a ladder body, a handrail installed on the ladder body, and a connecting piece installed between the handrail and the ladder body; the connecting piece comprises a rod body; one end of the rod body is rotatably connected with the ladder body, and the other end of the rod body is rotatably connected with the handrail; a locking piece is further arranged on the rod body and rotates on the rod body through the locking piece to allow one end of the locking piece to abut against the handrail, prevent the handrail from rotating on the connecting piece or abutting against the ladder body, and prevent the connecting piece from rotating on the ladder body.

[0006] As a preferred technical scheme of the utility model, the number of the locking pieces is two; one of the locking pieces is located on one side of the handrail, and the other locking piece is located on one side of the ladder body.

[0007] As a preferred technical scheme of the utility model, the rod body is connected with the inner thread of the inner wall surface of the locking piece through the outer thread.

[0008] As a preferred technical scheme of the utility model, the handrail is further provided with a shaft pin seat; the shaft pin seat is connected with the upper end of the rod body through a shaft pin, and the surface of the shaft pin seat facing the locking piece is a plane.

[0009] As a preferred technical solution of this utility model: the side of the ladder body is also provided with a connecting seat; wherein, the connecting seat passes through the rod body via a provided shaft pin, and rotatably installs the connecting member on the ladder body.

[0010] As a preferred technical solution of this utility model: the side of the connecting seat facing the locking member is a plane.

[0011] As a preferred technical solution of this utility model: the connecting seat is movably connected to the ladder body, and the shaft pin is movably connected to the connecting seat.

[0012] The beneficial effects of this utility model using the above technical solution are as follows: by rotating the locking member on the rod until one end of the locking member abuts against the handrail or the ladder body, the rotation of the handrail on the rod or the rotation of the connecting member on the ladder body can be prevented. Therefore, by a single rotational action, locking the handrail after it is unfolded or after it is folded can be easily and conveniently achieved; thus, compared with the prior art, this device has the advantages of simple operation and convenient use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the handrail of this utility model when it is in the unfolded state;

[0014] Figure 2 This is a schematic diagram of the handrail of this utility model in its stowed state;

[0015] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0016] Figure 4 This is a schematic diagram of the main structure of the connector of this utility model;

[0017] Figure 5 for Figure 4 A magnified view of a portion of point B in the middle;

[0018] Figure 6 This is a cross-sectional structural diagram of the connector of this utility model.

[0019] In the diagram: 1. Ladder body; 2. Handrail; 3. Connector; 30. Rod; 31. Locking element; 4. Connecting seat; 5. Axle pin seat; 6. Axle pin rod. Detailed Implementation

[0020] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the present application, and are not to be understood as a limitation of the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "upper surface" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and are not to be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be understood as a limitation of the present application.

[0021] Referring to Figures 1-6 The present application provides an embodiment: a folding ladder with a handrail, comprising a ladder body 1, a handrail 2 mounted on the ladder body 1, and a connecting piece 3 mounted between the handrail 2 and the ladder body 1; the connecting piece 3 comprises a rod body 30; wherein one end of the rod body 30 is rotatably connected to the ladder body 1, and the other end of the rod body 30 is rotatably connected to the handrail 2; the rod body 30 is further provided with a locking piece 31, and the locking piece 31 is rotated on the rod body 30 to allow one end of the locking piece 31 to abut against the handrail 2 to prevent the handrail 2 from rotating on the connecting piece 3 or to abut against the ladder body 1 to prevent the connecting piece 3 from rotating on the ladder body 1.

[0022] In summary, by rotating the locking piece 31 on the rod body 30, until one end of the locking piece 31 abuts against the handrail 2 or the ladder body 1, the handrail 2 can be prevented from rotating on the rod body 30 or the connecting piece 3 can be prevented from rotating on the ladder body 1. Therefore, by a single rotating action, the locking of the handrail after unfolding or the locking after folding can be conveniently and conveniently completed. Therefore, compared with the prior art, the device has the advantages of simple operation and convenient use.

[0023] Further, in order to improve the stability of the handrail after unfolding, the number of the locking members 31 is two; one of the locking members 31 is located on one side of the handrail 2, and the other locking member 31 is located on one side of the ladder body 1. Therefore, the device is installed with the locking members 31 on both ends of the rod body 30, so that when the handrail 2 is unfolded, the locking member 31 close to the handrail 2 side is abutted against the handrail 2 to complete the abutting and locking of the handrail 2 and the connecting member 3; at the same time, the locking member 31 close to the ladder body 1 side is rotated until the locking member 31 is abutted against the ladder body 1 to lock the connecting member 3 on the ladder body 1; therefore, the two locking members 31 can lock the rotating parts at the same time, which can effectively improve the stability of the handrail 2 after unfolding, and vice versa, the locking members 31 can reliably fix the folded handrail 2 on the ladder body 1.

[0024] Further, since the two ends of the rod body 30 are connected with the inner threads of the inner wall surface of the locking member 31 through the outer threads, when the locking member 31 is abutted against the handrail 2 or the ladder body 1, the locking member 31 threaded with the rod body 30 will not loosen without external force, so that the locking member 31 can realize the automatic locking action; in addition, the threaded connection can simplify the processing steps of the locking member 31 and the rod body 30 and reduce the processing cost. In addition, the locking member 31 is threaded with the rod body 30, so that clockwise rotation or counterclockwise rotation of the locking member 31 can realize the locking or unlocking of the device, so that the unlocking and locking actions are more simple and convenient.

[0025] On the basis of the above scheme, the handrail 2 is also provided with an axle pin seat 5; the axle pin seat 5 is connected with the upper end of the rod body 30, and the surface of the axle pin seat 5 facing the locking member 31 is a plane, so that when the upper end surface of the locking member 31 abuts against the lower end surface of the axle pin seat 5, the lower end surface of the axle pin seat 5 is a plane, which can increase the contact area and the stability after the contact, so that the locking member 31 can reliably abut against the rod body 30 when it is not unlocked, and the rotation of the handrail 2 can be avoided, thereby further improving the locking ability of the locking member 31 to the handrail 2.

[0026] At the same time, the side surface of the ladder body 1 is also provided with a connecting seat 4; the connecting member 3 is rotatably installed on the ladder body 1 through the axle pin rod 6 penetrating the other end of the rod body 30, so that the handrail 2 can be installed on the side surface of the ladder body 1 through the connecting seat 4.

[0027] Further, the surface of the connecting seat 4 facing the locking member 31 is a plane, so the contact area of the two can be increased, and the stability after contact can be increased, so that the phenomenon that the connecting member 3 rotates on the ladder body 1 when the locking member 31 is not unlocked can be completely avoided.

[0028] In addition, in order to facilitate the assembly of the connecting member 3, the connecting seat 4 is movably connected with the ladder body 1, and the shaft pin rod 6 is movably connected with the connecting seat 4.

[0029] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A ladder with foldable handrails, characterized in that: The utility model relates to a ladder, which comprises a ladder body (1), a handrail (2) installed on the ladder body (1), and a connecting piece (3) installed between the handrail (2) and the ladder body (1). The connecting piece (3) comprises a rod body (30), wherein one end of the rod body (30) is rotationally connected to the ladder body (1), and the other end of the rod body (30) is rotationally connected to the handrail (2). The rod body (30) is further provided with a locking piece (31), and the locking piece (31) rotates on the rod body (30) to abut against one end of the handrail (2) to prevent the handrail (2) from rotating on the connecting piece (3) or abutting against the ladder body (1) to prevent the connecting piece (3) from rotating on the ladder body (1).

2. A ladder according to claim 1 wherein: The number of the locking pieces (31) is two, one of which is located on one side of the handrail (2), and the other of which is located on one side of the ladder body (1).

3. A ladder according to claim 2 wherein: The rod body (30) is connected to the inner thread of the inner wall surface of the locking piece (31) through the outer thread.

4. A ladder according to claim 1 or 2 or 3 wherein: The handrail (2) is further provided with an axle pin seat (5), wherein the axle pin seat (5) is axially connected to the upper end of the rod body (30), and the surface of the axle pin seat (5) facing the locking piece (31) is a plane.

5. A ladder according to claim 4 wherein: The side surface of the ladder body (1) is further provided with a connecting seat (4), wherein the connecting seat (4) is rotationally installed on the ladder body (1) through the axle pin rod (6) penetrating through the rod body (30).

6. A ladder according to claim 5 wherein: The surface of the connecting seat (4) facing the locking piece (31) is a plane.

7. A ladder according to claim 6 wherein: The connecting seat (4) is movably connected to the ladder body (1), and the axle pin rod (6) is movably connected to the connecting seat (4).

Images