CN213330873U - Novel ladder hinge joint - Google Patents

Abstract

The utility model discloses a novel ladder hinge joint, which comprises a joint body which can be rotationally adjusted and can be positioned and fixed after adjustment, wherein the outer wall of the joint body is provided with a seat body which does not influence the adjustment activity of the joint body, the seat body is provided with a mounting hole and can be provided with a table top above the joint body through the mounting hole, the seat body can be directly welded on the outer wall of the joint body in a welding way, and the top end of the seat body can be lower than, flush with or protrude out of the top point of the joint body; the base body is arranged on the outer wall of the joint body, so that when the ladder is applied to a four-section ladder frame folding ladder, a table top can be arranged above the joint body through the mounting hole in the base body when the ladder is not used after being folded, so that the ladder can be used as a table, and is more convenient particularly in exhibition activities; the handle of the hinged joint is provided with a screw hole or a nut is welded after the hole is formed in the handle, and the screw rod can be screwed into the screw hole or the nut to jack the tail end of the handle so that the positioning key retracts to leave the positioning notch.

Description

Novel ladder hinge joint

Technical Field

The utility model belongs to the technical field of folding ladder, concretely relates to hinge joint of folding ladder.

Background

A folding ladder in the existing market is like the four-section ladder frame folding ladder disclosed by the Chinese utility model patent (publication number CN 2869275Y), and the ladder frames in each section are hinged and connected through a hinged connecting piece disclosed by the Chinese utility model patent (publication number CN 201087692Y). This kind of four sections ladder frame folding ladder can be used as a word ladder, double ladder and work platform ladder through folding regulation, and the utility model patent on the existing market (notice No. CN 2869275Y) discloses four sections ladder frame folding ladder, its articulated joint have weak point in the design, and when the folding ladder used as the double ladder, the removal of the unable control folding ladder of people on the double ladder brought inconvenience for work. When the ladder is not used in daily life, the ladder is folded, folded and folded to be idle, and the joint of the folding ladder with the defects is improved, so that the ladder can have the function of a table, and convenience is brought to the daily life of people.

Disclosure of Invention

The utility model aims at providing a be provided with the pedestal that can install mesa on the ladder articulated joint, can make the folding ladder can regard as the desk to use when folding not using, add screw or nut on the handle of ladder articulated joint, the people can control the novel ladder articulated joint that the ladder removed at will on the ladder when the ladder uses as the double ladder.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel ladder articulated joint, is including can rotating the regulation and can be adjusting the fixed joint body in back location, is provided with the pedestal that does not influence joint body regulation activity on the outer wall of joint body, and the pedestal has the mounting hole and can sets up the mesa through the mounting hole installation in the top of joint body. The concrete structure of the joint body preferably comprises a first arm left cover, a first arm right cover, a second arm left cover, a second arm right cover, a jacking piece, a central shaft, a rivet, a positioning key, a handle, a tension spring, a long shaft, a key seat piece, a small shaft, a spring and a support, wherein the first arm left cover, the second arm left cover, the jacking piece, the second arm right cover and the first arm right cover are sequentially arranged and movably connected through the central shaft in a rotating way, the first arm left cover and the first arm right cover are connected through the rivet, the first arm left cover and the first arm right cover are correspondingly provided with sliding holes, the second arm left cover and the second arm right cover are correspondingly provided with positioning notches, the upper end of the jacking piece is connected with the second arm left cover and the second arm right cover through the jacking spring, the lower end of the jacking piece is arranged on the positioning key in an inserting way, the positioning key is connected with the positioning notches and the sliding holes, the first arm left cover, the first arm right cover, the handle and the tension spring are movably connected through the long shaft in a rotating way, the small shaft is provided with a key seat sheet and a spring in a penetrating way, the small shaft is connected with the positioning key and the spring in a jacking way with the support, the support is fastened and connected with the inner side of the handle by a fastener, and the seat body is arranged on the outer wall of the first arm left cover or the first arm right cover of the joint body in the structural form.

Preferably, the mounting hole is a screw hole, and the seat body is a sleeve body with the screw hole; the seat body can be directly welded on the outer wall of the joint body in a welding mode; and the top end of the seat body can be lower than, flush with or protrude out of the top point of the joint body.

Furthermore, the handle is provided with a screw hole or an opening, a nut is welded on the screw hole to be in threaded connection with an installation screw rod, when the screw rod is screwed, the tail end of the handle can be jacked up to enable the positioning key to retract and leave the positioning notch, the hinged joint is in an unlocking state, the joint arm cover can freely rotate for 180 degrees around the central shaft, and the double-head ladder is suitable for two sections of ladder frames, namely double-pointed ladders, people standing on the ladders can control ladder feet to move back and forth, and is particularly suitable for decoration operation.

The utility model discloses following beneficial effect has:

the novel ladder hinge joint has the advantages that the base body is arranged on the outer wall of the joint body, so that when the novel ladder hinge joint is applied to a four-section ladder frame folding ladder, a table top can be installed above the joint body through the installation hole in the base body when the ladder is not used in a folding mode, the ladder can be used as a table, and particularly in exhibition activities, the novel ladder hinge joint is more convenient; meanwhile, the tail end of the handle can be jacked up when the handle is screwed in a threaded connection mode, the positioning key retracts to leave the screw rod of the positioning notch, the hinged joint is in an unlocking state, the joint arm cover can freely rotate 180 degrees around the central shaft, and the double-arm ladder is suitable for two sections of ladder frames, namely a herringbone ladder, people standing on the ladder can control ladder legs to move back and forth, and is particularly suitable for decoration operation.

Drawings

Fig. 1 is a schematic structural view of a novel ladder hinge joint of the present invention;

fig. 2 is an explosion structure diagram of a novel ladder hinge joint of the utility model;

fig. 3 is a schematic structural view of the novel ladder hinge joint in a folded state when the novel ladder hinge joint is applied to a four-section ladder frame folding ladder;

fig. 4 is a structural schematic diagram of a handle state structure of a novel ladder hinge joint in an unlocking state when the novel ladder hinge joint is applied to a herringbone ladder;

fig. 5 shows the state of the novel articulated joint of the ladder when the person works on the ladder when the novel articulated joint of the ladder is suitable for the herringbone ladder.

In the figure: 1. a joint body; 2. a base body; 3. mounting holes; 4. a screw hole; 5. a screw shaft; 11. a first arm left cover; 12. a first arm right cover; 13. a second arm left cover; 14. a second arm right cover; 15. a jacking member; 16. a central shaft; 17. riveting; 18. a slide hole; 19. a positioning key; 110. a handle; 111. a tension spring; 112. a long axis; 113. a key pad sheet; 114. a small shaft; 115. a spring; 116. a support; 117. a positioning notch; 151. and (4) a spring is supported.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the invention.

As shown in fig. 1-3, the novel ladder hinge joint of the present invention comprises a joint body 1 capable of being adjusted in a rotating manner and fixed in a positioning manner after adjustment, wherein a base body 2 which does not affect the adjustment of the joint body 1 is arranged on the outer wall of the joint body 1, the base body 2 is provided with a mounting hole 3, and a table top can be installed above the joint body 1 through the mounting hole 3; the specific structure of the joint body 1 preferably adopts the hinge connection piece disclosed in the prior art chinese utility model patent (publication No. CN 201087692Y), which comprises a first arm left cover 11, a first arm right cover 12, a second arm left cover 13, a second arm right cover 14, a pressing piece 15, a central shaft 16, a rivet 17, a positioning key 19, a handle 110, a tension spring 111, a long shaft 112, a key seat sheet 113, a small shaft 114, a spring 115 and a support 116, wherein the first arm left cover 11, the second arm left cover 13, the pressing piece 15, the second arm right cover 14 and the first arm right cover 12 are sequentially arranged and rotatably and movably connected through the central shaft 16, the first arm left cover 11 and the first arm right cover 12 are connected through the rivet 17, the first arm left cover 11 and the first arm right cover 12 are correspondingly provided with a sliding hole 18, the second arm left cover 13 and the second arm right cover 14 are correspondingly provided with a positioning notch 117, the upper end of the pressing piece 15 is connected with the second arm right cover 13 through a pressing spring 151, The second arm right cover 14 is connected, the lower end of the jacking member 15 is placed on the positioning key 19, the positioning key 19 is connected with the positioning notch 117 and the sliding hole 18 in a plug-in manner, the first arm left cover 11, the first arm right cover 12, the handle 110 and the tension spring 111 are movably connected through the long shaft 112 in a rotating manner, the key seat sheet 113 and the spring 115 are arranged on the small shaft 114 in a penetrating manner, the small shaft 114 is connected with the positioning key 19, the spring 115 and the support 116 in a jacking manner, the support 116 is fixedly connected with the inner side of the handle 110 through a fastener, and the seat body 2 is arranged on the outer wall of the first arm left cover 11 or the first arm right cover 12. The joint body 1 may have other structures as long as it is suitable for use in, for example, a four-step ladder folding ladder. The utility model discloses a set up pedestal 2 on the outer wall of joint body 1, when being applied to four sections ladder frame folding ladder, can install the mesa in 1 top of joint body through mounting hole 3 on this pedestal 2 when the ladder is folding not to use for the ladder can regard as the desk to use, especially in the exhibition activity, can be more convenient.

The specific form of the seat body 2 can be that the mounting holes 3 are set to be screw holes, the seat body 2 is a sleeve body with screw holes, so that the table top can be directly mounted through the connection of bolts and the seat body 2, and the screw holes of the seat body 2 can also be provided with suckers, and the table top such as a glass table top can be fixed through the suckers. Of course, the seat body 2 can also directly adopt the mode of a conventional nut. The connection between the seat body 2 and the outer wall of the joint body 1 can be welded to the outer wall of the joint body 1 in a simple welding mode, and the top end of the seat body 2 can be lower than, flush with or protrude out of the top point of the joint body 1.

In addition, as shown in fig. 1-5, the handle 110 may further be provided with a screw hole 4 or an opening, and a nut is welded on the screw hole to screw the mounting screw rod 5, when the screw rod 5 is screwed, the tail end of the handle 110 can be jacked up to retract the positioning key 19 away from the positioning notch 117, so that the articulated joint is in an unlocked state, the articulated arm cover can freely rotate 180 degrees around the central shaft 16, and when the two-section ladder frame is suitable for a herringbone ladder, a person standing on the ladder can control the ladder legs to move back and forth, and the two-section ladder frame is particularly suitable for decoration operation.

Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.

Claims (7)

1. The utility model provides a novel ladder hinge joint, is including can rotating the regulation and can be adjusting fixed joint body (1) in back location, its characterized in that: the outer wall of the joint body (1) is provided with a seat body (2) which does not affect the adjustment and the movement of the joint body (1), and the seat body (2) is provided with a mounting hole (3) and can be provided with a table board above the joint body (1) through the mounting hole (3).

2. The novel ladder hinge joint of claim 1, characterized in that: the mounting hole (3) is a screw hole, and the seat body (2) is a sleeve body with a screw hole.

3. The new ladder articulation joint as set forth in claim 1 or 2, characterized in that: the seat body (2) is welded on the outer wall of the joint body (1).

4. The new ladder articulation joint as set forth in claim 1 or 2, characterized in that: the top end of the seat body (2) is lower than, flush with or protrudes out of the top point of the joint body (1).

5. The novel ladder hinge joint of claim 1, characterized in that: the joint body (1) comprises a first arm left cover (11), a first arm right cover (12), a second arm left cover (13), a second arm right cover (14), a jacking piece (15), a central shaft (16), a rivet (17), a positioning key (19), a handle (110), a tension spring (111), a long shaft (112), a key seat sheet (113), a small shaft (114), a spring (115) and a support (116), wherein the first arm left cover (11), the second arm left cover (13), the jacking piece (15), the second arm right cover (14) and the first arm right cover (12) are sequentially arranged and are movably connected through the central shaft (16) in a rotating manner, the first arm left cover (11) and the first arm right cover (12) are connected through the rivet (17), sliding holes (18) are correspondingly arranged on the first arm left cover (11) and the first arm right cover (12), and positioning notches (117) are correspondingly arranged on the second arm left cover (13) and the second arm right cover (14), the upper end of the jacking part (15) is connected with the second arm left cover (13) and the second arm right cover (14) through jacking springs (151), the lower end of the jacking part (15) is placed on a positioning key (19), the positioning key (19) is connected with a positioning notch (117) and a sliding hole (18) in a plugging mode, the first arm left cover (11), the first arm right cover (12), a handle (110) and a tension spring (111) are movably connected in a rotating mode through a long shaft (112), a key seat sheet (113) and a spring (115) are arranged on a small shaft (114) in a penetrating mode, the small shaft (114) is connected with the positioning key (19) and the spring (115) in a jacking mode, the support (116) is fixedly connected with the inner side of the handle (110) through fasteners, and the seat body (2) is arranged on the outer wall of the first arm left cover (11) or the first arm right cover (12).

6. The novel ladder hinge joint of claim 5, characterized in that: the handle (110) is provided with a screw rod (5) which can jack the tail end of the handle (110) when being screwed so as to retract the positioning key (19) away from the positioning notch (117).

7. The novel ladder hinge joint of claim 6, characterized in that: the handle (110) is provided with a screw hole (4) or an opening and a nut is welded on the screw hole to be connected with the screw rod (5) in a threaded manner.

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