CN216841403U

CN216841403U - Pull rod device of ladder opening and closing device

Info

Publication number: CN216841403U
Application number: CN202220316365.5U
Authority: CN
Inventors: 刘忠伟; 李涛; 丁尚贵; 何心立
Original assignee: Qingdao Fuyou Tools Co ltd
Current assignee: Qingdao Fuyou Tools Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-06-28
Anticipated expiration: 2032-02-16

Abstract

The utility model belongs to the technical field of the ladder technique and specifically relates to a ladder opening and closing device draw bar device, including the ladder body, the ladder body includes two articulated first escalators and second staircase of each other, be provided with two subassemblies that open and shut between first escalator and the second staircase, the subassembly that opens and shuts includes head rod and second connecting rod, the head rod bottom is provided with coupling assembling, coupling assembling includes U type piece, the connecting plate, engaging lug board and solid rivet, the inside adjusting part that is provided with of U type piece, adjusting part includes the installation piece, the lead screw, threaded block and swiveling wheel, through setting up coupling assembling, can the person of facilitating the use prop open and shut the subassembly around two, reduce tedious work, thereby improve work efficiency, simultaneously through setting up coupling assembling, can increase the stability of the subassembly that opens and shuts.

Description

Pull rod device of ladder opening and closing device

Technical Field

The utility model relates to a ladder technical field specifically is ladder opener draw bar device.

Background

Ladder, daily life apparatus, this instrument are done the limit by two long thick poles, and the horizontal pole that is fit for the climbing is crossed in the middle of for climb, the ladder divide into lift single ladder and lift double ladder, and the ladder expandes the in-process, expandes and folds the ladder by the ware that opens and shuts of both sides.

In the unfolding use process of the ladder, due to the fact that the opening and closing devices on the two sides cannot be unfolded and closed at the same time, operation is heavy, and the use efficiency is reduced.

Therefore, there is a need for a ladder closer pull rod arrangement that ameliorates the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ladder ware pull rod device that opens and shuts to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

ladder opening and closing device draw bar device, including the ladder body, the ladder body includes two articulated first escalators and second staircase of each other, be provided with two subassemblies that open and shut between first escalator and the second staircase, the subassembly that opens and shuts includes head rod and second connecting rod, the head rod bottom is provided with coupling assembling, coupling assembling includes U type piece, connecting plate, engaging lug board and solid rivet, the inside adjusting part that is provided with of U type piece, adjusting part is including installation piece, lead screw, thread block and swiveling wheel.

As the utility model discloses preferred scheme, head rod movable mounting is both sides around the first staircase, both sides around the second staircase of second connecting rod movable mounting, head rod and second connecting rod swing joint.

As the utility model discloses preferred scheme, connect the otic placode through solid rivet fixed mounting both sides around the head rod, connecting plate movable mounting is in the inside both sides of U type piece, the connecting plate extends to the outside one side of U type piece and connects otic placode fixed connection.

As the utility model discloses preferred scheme, two spouts have all been seted up to U type piece inner wall both sides, the equal fixed mounting in connecting plate both sides has the slider with spout sliding connection.

As the utility model discloses preferred scheme, the installation piece is located the inside both ends of U type piece and rather than both sides fixed connection around the inner wall, the lead screw passes through the bearing and rotates to be installed between two installation pieces, screw thread piece fixed mounting in connecting plate top one side and with lead screw threaded connection, swiveling wheel fixed mounting in lead screw outside intermediate part.

As the utility model discloses preferred scheme, two sections length equal screw thread opposite direction's screw thread is seted up in the lead screw outside.

As the utility model discloses preferred scheme, the auxiliary tank has all been seted up to U type piece top both sides, the level of auxiliary tank inner wall bottom is less than the level on swiveling wheel top.

As the utility model discloses preferred scheme, U type piece outside cover is equipped with two anti-skidding rubber sleeves, a plurality of anti-skidding recesses have all been seted up to anti-skidding rubber sleeve both sides.

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

1. the utility model discloses in, through setting up coupling assembling, can the person of facilitating the use strut two front and back subassemblies that open and shut, reduce tedious work to improve work efficiency, simultaneously through setting up coupling assembling, can increase the stability of the subassembly that opens and shuts.

2. The utility model discloses in, through setting up adjusting part, can conveniently adjust coupling assembling's length, improve the suitability to the not unidimensional ladder of adaptation enlarges application range.

3. The utility model discloses in, through setting up the anti-skidding rubber sleeve, can increase the user and grip coupling assembling's stability and comfort level.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the inside of the U-shaped block of the present invention;

fig. 3 is a schematic view of the connection between the anti-slip rubber sleeve and the U-shaped block of the present invention.

In the figure: 1. a ladder body; 11. a first escalator; 12. a second escalator; 13. an opening and closing assembly; 131. a first connecting rod; 132. a second connecting rod; 14. a connecting assembly; 141. a U-shaped block; 1411. a chute; 1412. a slider; 142. a connecting plate; 143. connecting the ear plates; 144. a solid rivet; 2. an adjustment assembly; 21. mounting blocks; 22. a screw rod; 23. a thread block; 24. a rotating wheel; 3. an auxiliary groove; 31. an anti-slip rubber sleeve; 32. and (4) an anti-slip groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the present invention are presented. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the present invention provides a technical solution:

ladder opener draw bar device, including ladder body 1, ladder body 1 includes two articulated first escalators 11 and second escalator 12 of each other, be provided with two subassembly 13 that opens and shuts between first escalator 11 and the second escalator 12, subassembly 13 that opens and shuts includes head rod 131 and second connecting rod 132, head rod 131 bottom is provided with coupling assembling 14, coupling assembling 14 includes U type piece 141, connecting plate 142, connect otic placode 143 and solid rivet 144, U type piece 141 is inside to be provided with adjusting part 2, adjusting part 2 includes installation piece 21, lead screw 22, screw piece 23 and swiveling wheel 24, through setting up coupling assembling 14, can two front and back subassembly 13 that opens and shuts struts of convenience of customers, reduce tedious work, thereby improve work efficiency, simultaneously through setting up coupling assembling 14, can increase the stability of subassembly 13 that opens and shuts.

In the embodiment, referring to fig. 1 and 2, the first connecting rods 131 are movably installed at the front and rear sides of the first staircase 11, the second connecting rods 132 are movably installed at the front and rear sides of the second staircase 12, the first connecting rods 131 are movably connected with the second connecting rods 132, the connecting ear plates 143 are fixedly installed at the front and rear sides of the first connecting rods 131 by the solid rivets 144, the connecting plates 142 are movably installed at the inner sides of the U-shaped blocks 141, the connecting plates 142 extend to the outer side of the U-shaped blocks 141 and are fixedly connected with the connecting ear plates 143, the connecting assembly 14 is arranged to facilitate a user to prop the front and rear opening and closing assemblies 13 apart, so as to reduce heavy work, in actual use, the user moves the U-shaped blocks 141 downward to move the connecting plates 142 and the connecting ear plates 143 downward, and props the first connecting rods 131 and the second connecting rods 132 apart by the solid rivets 144 to open the ladder, thereby improving work efficiency, and replacing the mode that the conventional opener can not be opened at the same time, meanwhile, the stability of the opening and closing assembly 13 can be improved by arranging the connecting assembly 14.

In the embodiment, referring to fig. 2, two sliding grooves 1411 are formed on two sides of an inner wall of a U-shaped block 141, two sliding blocks 1412 slidably connected with the sliding grooves 1411 are fixedly mounted on two sides of a connecting plate 142, mounting blocks 21 are positioned at two ends of the inside of the U-shaped block 141 and fixedly connected with the front and rear sides of the inner wall, a screw rod 22 is rotatably mounted between the two mounting blocks 21 through bearings, a screw block 23 is fixedly mounted on one side of the top end of the connecting plate 142 and is in threaded connection with the screw rod 22, a rotating wheel 24 is fixedly mounted at the middle part of the outer side of the screw rod 22, two sections of threads with equal length and opposite thread directions are formed on the outer side of the screw rod 22, auxiliary grooves 3 are formed on two sides of the top end of the U-shaped block 141, the horizontal height of the bottom end of the inner wall of the auxiliary groove 3 is lower than the horizontal height of the top end of the rotating wheel 24, the length of a connecting assembly 14 can be conveniently adjusted by arranging an adjusting assembly 2, the adaptability is improved, in practical use, a user rotates the rotating wheel 24 through the auxiliary grooves 3, and further, the screw rod 22 rotates to drive the screw blocks 23 on the two sides to move, and the screw blocks 23 drive the connecting plate 142 to stably and synchronously move under the support of the slide block 1412 and the slide groove 1411, so that the distance between the connecting lug plates 143 on the two sides is changed, and the ladder is adapted to ladders with different sizes, and the application range is expanded.

In an embodiment, referring to fig. 3, two anti-slip rubber sleeves 31 are sleeved outside the U-shaped block 141, a plurality of anti-slip grooves 32 are formed in both sides of each anti-slip rubber sleeve 31, and by arranging the anti-slip rubber sleeves 31, the stability and comfort level of a user holding the connecting assembly 14 can be improved.

The working principle is as follows: when the ladder is used, the ladder is placed on the ground, a user moves the U-shaped block 141 downwards to enable the connecting plate 142 and the connecting lug plate 143 to move downwards, the anti-skid rubber sleeve 31 is arranged, the stability and the comfort level of the user for holding the connecting component 14 can be improved, the first connecting rod 131 and the second connecting rod 132 are enabled to be opened through the solid rivet 144, the user can conveniently open the front opening and closing component 13 and the rear opening and closing component 13 to reduce heavy work, the working efficiency is improved, the mode that a traditional opener can not be opened simultaneously is replaced, meanwhile, the stability of the opening and closing component 13 can be improved through the connecting component 14, after the ladder is used, the U-shaped block 141 is moved upwards to fold the ladder conveniently, when the ladders with different sizes need to be matched, the user rotates the rotating wheel 24 through the auxiliary groove 3 to further enable the screw rod 22 to rotate to drive the thread blocks 23 on two sides to move, the screw block 23 drives the connecting plate 142 to move stably and synchronously under the support of the slide block 1412 and the slide groove 1411, so as to change the distance between the connecting lug plates 143 at the two sides, thereby adapting to ladders with different sizes and expanding the application range.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Ladder opening and shutting device pull rod device, including ladder body (1), its characterized in that: ladder body (1) includes two articulated first escalators (11) and second escalator (12) each other, be provided with two subassembly (13) that open and shut between first escalator (11) and second escalator (12), subassembly (13) that open and shut includes head rod (131) and second connecting rod (132), head rod (131) bottom is provided with coupling assembling (14), coupling assembling (14) include U type piece (141), connecting plate (142), connection otic placode (143) and solid rivet (144), U type piece (141) inside is provided with adjusting part (2), adjusting part (2) are including installation piece (21), lead screw (22), thread piece (23) and swiveling wheel (24).

2. A ladder opener tie device as set forth in claim 1 in which: the first connecting rods (131) are movably arranged on the front side and the rear side of the first escalator (11), the second connecting rods (132) are movably arranged on the front side and the rear side of the second escalator (12), and the first connecting rods (131) are movably connected with the second connecting rods (132).

3. A ladder opener tie device as set forth in claim 1 in which: the connecting lug plates (143) are fixedly arranged on the front side and the rear side of the first connecting rod (131) through solid rivets (144), the connecting plates (142) are movably arranged on two sides of the inside of the U-shaped block (141), and the connecting plates (142) extend to one side of the outside of the U-shaped block (141) and are fixedly connected with the connecting lug plates (143).

4. A ladder opener tie device as set forth in claim 1 in which: two sliding grooves (1411) are formed in two sides of the inner wall of the U-shaped block (141), and sliding blocks (1412) which are connected with the sliding grooves (1411) in a sliding mode are fixedly mounted on two sides of the connecting plate (142).

5. A ladder opener tie device as set forth in claim 1 in which: the mounting blocks (21) are located at two ends inside the U-shaped block (141) and fixedly connected with the front side and the rear side of the inner wall of the U-shaped block, the screw rod (22) is rotatably mounted between the two mounting blocks (21) through a bearing, the thread block (23) is fixedly mounted on one side of the top end of the connecting plate (142) and is in threaded connection with the screw rod (22), and the rotating wheel (24) is fixedly mounted at the middle part of the outer side of the screw rod (22).

6. A ladder opener tie device as set forth in claim 1 in which: two sections of threads with equal length and opposite thread directions are arranged on the outer side of the screw rod (22).

7. A ladder opener tie device as set forth in claim 1 in which: auxiliary groove (3) have all been seted up to U type piece (141) top both sides, the level at auxiliary groove (3) inner wall bottom is less than the level on swiveling wheel (24) top.

8. A ladder opener tie device as set forth in claim 1 in which: u type piece (141) outside cover is equipped with two anti-skidding rubber sleeves (31), a plurality of anti-skidding recesses (32) have all been seted up to anti-skidding rubber sleeve (31) both sides.