CN220415236U - Folding herringbone cat ladder - Google Patents

Abstract

The utility model provides a folding herringbone cat ladder, and belongs to the technical field of ladders. This cat ladder includes two sets of ladder frames that the structure is the same, the top of two ladder frames is rotated through articulated seat and is connected, the symmetry is provided with the piece of propping up between two sets of ladder frames, the ladder frame includes two first folding bars, two second folding bars and a plurality of footboard, the one end that articulated seat was kept away from to first folding bar is provided with the hinge, the other end and the end connection of second folding bar of hinge, the equidistant setting of footboard is between first folding bar and second folding bar, first folding bar and second folding bar meet department all is provided with the joint piece, this cat ladder adopts folding structure, change cat ladder size, conveniently carry when reducing design cost, use and turnover.

Description

Folding herringbone cat ladder

Technical Field

The utility model relates to the technical field of ladders, in particular to a folding herringbone cat ladder.

Background

When construction of indoor wall ceiling or high operation, normal construction operation personnel highly can't satisfy the construction of high operation face, need adopt the double ladder to carry out the operation of ascending a height, and traditional construction double ladder is generally fixed for both legs length, the instrument suitability is general, and can't fold flexible after the construction is accomplished, construction transport, turnover are comparatively difficult, to this problem, folding cat ladder passes through the slip gyro wheel design among the prior art, realize the upper and lower flexible of double ladder, thereby adjust cat ladder height, and this type cat ladder structure is complicated, use cost is higher, troublesome operation, occupation space size is still great after the shrink moreover, inconvenient depositing and carrying.

Disclosure of Invention

In order to make up for the defects, the folding herringbone ladder provided by the utility model adopts a folding structure, changes the size of the ladder, reduces the design cost and is convenient to carry, use and turn around.

The utility model is realized in the following way:

the utility model provides a folding herringbone cat ladder, includes two sets of ladder frames that the structure is the same, two the top of ladder frame is rotated through articulated seat and is connected, two sets of symmetry is provided with the stay piece between the ladder frame, the ladder frame includes two first folding bars, two second folding bars and a plurality of footboard, first folding bar is kept away from the one end of articulated seat is provided with the hinge, the other end of hinge with the end connection of second folding bar, the footboard equidistant set up in first folding bar with between the second folding bar, first folding bar with second folding bar meets the department and all is provided with the joint piece.

In one embodiment of the utility model, the bracing member comprises a first bracing piece and a second bracing piece which are mutually hinged, wherein the other end of the first bracing piece is hinged with the side edge of one group of the ladder frames, and the other end of the second bracing piece is hinged with the side edge of the other group of the ladder frames.

In an embodiment of the utility model, a fixed column is arranged on one side of the first folding rod, one end of the clamping piece is rotatably connected with the fixed column, a limit column is arranged on one side of the second folding rod, a limit groove is formed in the other end of the clamping piece, and the limit column is clamped in the limit groove.

In one embodiment of the utility model, the limiting groove is in a U-shaped structure and extends to the outer side edge of the clamping piece, a movable groove is formed in the inner wall of one side of the limiting groove, a clamping groove is formed in the inner wall of the other side of the limiting groove, the movable groove and the clamping groove are both in arc-shaped structures, a clamping ring is arranged in the movable groove, and the end part of the clamping ring penetrates through the limiting groove and then extends to the inside of the clamping groove.

In an embodiment of the utility model, the snap ring is movably arranged at the outer side of the limit post, and a space formed by the inner side of the snap ring and the inner wall of the limit groove is matched with the diameter of the limit post.

In one embodiment of the utility model, an arc spring is arranged in the movable groove, and two ends of the arc spring are respectively abutted with the inner wall of the movable groove and the end part of the clamping ring.

In one embodiment of the utility model, a sliding groove is formed in one side of the clamping piece, the sliding groove is communicated with the movable groove, a deflector rod is arranged at one end, away from the clamping groove, of the clamping ring, the deflector rod is in clearance fit with the sliding groove, and the end part of the deflector rod penetrates through the sliding groove and then extends to the outer side of the clamping piece.

In one embodiment of the utility model, the hinge is arranged at one side of the two groups of the ladder frames, which are far away from each other, and two ends of the hinge are respectively connected with the first folding rod and the second folding rod through bolts or rivets.

In one embodiment of the utility model, the end of the second folding bar remote from the first folding bar is provided with a foot pad.

In one embodiment of the utility model, a handle is provided on the outside of the first folding bar.

The folding herringbone cat ladder obtained through the design has the beneficial effects that:

(1) The first folding rod and the second folding rod are connected through the hinge, so that the overall strength is improved while the uniformity of the expansion and folding of the ladder is ensured, the size after folding and storage is reduced, the occupied space is reduced, the carrying and turnover are convenient, the ladder has a simple structure, is suitable for industrialized mass production, reduces the use cost, is convenient and quick to use, and has strong practicability and portability;

(2) The cat ladder is through stretching the fixed ladder frame angle after expanding of piece, makes the cat ladder keep stable, sets up the switching regulation at folding pole junction simultaneously that the joint spare restriction folded position, improves the security that the cat ladder used, and during the cat ladder was expanded, the joint spare is through the cooperation with spacing post on the folding pole, prevents that the folding pole from rotating at will, when packing up, makes the cat ladder keep beta structure, prevents to expand at will, convenient transport.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a folding herringbone ladder according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic structural diagram of a clamping member according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional structure of a clip according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a folding herringbone ladder according to an embodiment of the present utility model;

in the figure: 10. a ladder frame; 20. a hinge base; 30. a bracing piece; 301. a first brace; 302. a second brace; 101. a first folding bar; 1011. fixing the column; 1012. a handle; 102. a second folding bar; 1021. foot pads; 1022. a limit column; 103. a pedal; 104. a hinge; 105. a clamping piece; 1051. a limit groove; 1052. a movable groove; 1053. a clamping groove; 1054. a clasp; 1055. an arc spring; 1056. a chute; 1057. a deflector rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a folding herringbone cat ladder, including the same ladder frame 10 of two sets of structures, the top of two ladder frames 10 is through articulated seat 20 rotation connection, articulated seat 20 is with the spacing connection of two ladder frames 10, form the chevron shape when making the cat ladder expand, utilize the triangle stable structure to make the cat ladder keep stable, prevent to turn on one's side, the symmetry is provided with the stay 30 between two sets of ladder frames 10, the stay 30 is used for restricting the expansion angle of ladder frame 10, further guarantee the stability of ladder frame 10 expansion, ladder frame 10 includes two first folding bars 101, two second folding bars 102 and a plurality of footboard 103, the one end that articulated seat 20 was kept away from to first folding bar 101 is provided with hinge 104, the other end and the end connection of second folding bars 102 of hinge 104, the folding bars tip is articulated through hinge 104, hinge 104 can drive folding bar free rotation switching, the disconnection and the whole uniformity of changeover that guarantees the cat ladder, equidistant setting up between first folding bars 101 and second folding bars 102 of footboard 103, footboard 103 both ends and first folding bars 102 are fixed, the surface welding 103 sets up the stabilizer bar 103, the extension bar 105 has guaranteed that the folding personnel have the first folding bars, the equal folding bars are carried in the safety joint position, the equal to keep the safety joint position of the safety joint of the folding step 101, the safety joint 105 has guaranteed, the folding step 101 has the folding joint 105, the safety joint is guaranteed to be carried the safety joint of the personnel, the safety joint of the folding step 101, the safety joint is guaranteed, the safety joint of the folding step 101 and the equipment.

As an embodiment of the present utility model, the bracing member 30 further includes a first bracing piece 301 and a second bracing piece 302 hinged to each other, wherein the other end of the first bracing piece 301 is hinged to a side edge of one group of ladder frames 10, the other end of the second bracing piece 302 is hinged to a side edge of the other group of ladder frames 10, and each of the first bracing piece 301 and the second bracing piece 302 is provided with a blocking piece limited by each other, so that a maximum supporting angle of the bracing member 30 after being unfolded is ensured.

As an embodiment of the present utility model, further, a fixed column 1011 is disposed on one side of the first folding bar 101, one end of the clamping member 105 is rotatably connected to the fixed column 1011, a limiting column 1022 is disposed on one side of the second folding bar 102, a limiting groove 1051 is disposed on the other end of the clamping member 105, the limiting column 1022 is clamped in the limiting groove 1051, the fixed column 1011 is used for limiting the position of the clamping column, the end of the clamping column rotates around the fixed column 1011, and the limiting column 1022 is clamped through the limiting groove 1051 after the ladder frame 10 is unfolded and folded, so that the first folding bar 101 and the second folding bar 102 are kept fixed.

As an embodiment of the present utility model, further, the limiting groove 1051 is in a "U" structure and extends to the outer side of the clamping piece 105, the inner wall of one side of the limiting groove 1051 is provided with the movable groove 1052, the inner wall of the other side of the limiting groove 1051 is provided with the clamping groove 1053, both the movable groove 1052 and the clamping groove 1053 are in arc structures, the inside of the movable groove 1052 is provided with the clamping ring 1054, the clamping ring 1054 is slidably arranged in the movable groove 1052, the end part of the clamping ring 1054 penetrates through the limiting groove 1051 and then extends to the inside of the clamping groove 1053, the limiting groove 1051 is in an opening structure, the clamping ring 1054 is used for closing the opening part of the limiting groove 1051, so that the limiting column 1022 is stably and reliably clamped into the limiting groove 1051, the clamping ring 1054 is movably arranged at the outer side of the limiting column 1022, the space formed by the inner side of the clamping ring 1054 and the inner wall of the limiting groove 1051 is matched with the diameter of the limiting column 1022, and when the limiting column 1022 is clamped into the limiting groove 1, the center of the clamping ring 1054 is coincident with the center of the limiting column 1022, so that the limiting effect on the limiting column 1022 is realized.

As an embodiment of the present utility model, further, an arc spring 1055 is disposed in the movable slot 1052, two ends of the arc spring 1055 are respectively abutted against the inner wall of the movable slot 1052 and the end of the snap ring 1054, the arc spring 1055 adopts a compression spring, and an elastic force acts on the snap ring 1054, so that the end of the snap ring 1054 is always embedded into the clamping slot 1053, thereby ensuring the stability and reliability of the clamping structure.

As an embodiment of the present utility model, further, a chute 1056 is formed on one side of the clamping member 105, the chute 1056 is communicated with the movable slot 1052, a deflector rod 1057 is disposed at one end of the snap ring 1054 away from the clamping slot 1053, the deflector rod 1057 is in clearance fit with the chute 1056, the end of the deflector rod 1057 extends to the outer side of the clamping member 105 after penetrating through the chute 1056, the deflector rod 1057 and the snap ring 1054 are integrally formed, the deflector rod 1057 conveniently drives the snap ring 1054 to slide, so that the end of the deflector rod 1057 is separated from the clamping slot 1053, and separation of the clamping structure is realized.

As one embodiment of the present utility model, the hinge 104 is disposed at a side of the two sets of ladder frames 10 away from each other, two ends of the hinge 104 are connected to the first folding bar 101 and the second folding bar 102 by bolts or rivets, respectively, and the two sets of ladder frames 10 are folded and unfolded to the opposite sides, respectively, so as to prevent motion interference.

As an embodiment of the present utility model, further, a foot pad 1021 is disposed at an end of the second folding rod 102 far from the first folding rod 101, and the foot pad 1021 is a rubber sleeve, so as to play a role of anti-skid, so that friction between the bottom end of the ladder frame 10 and the ground can be large, and the use safety of the ladder stand is improved.

As an embodiment of the present utility model, further, a handle 1012 is provided on the outer side of the first folding bar 101, and the handle 1012 facilitates the transportation of the folded ladder, thereby improving the practicability.

Specifically, the working principle of the folding herringbone ladder is as follows: when the ladder stand is used, the ladder stand is carried to a construction site, the deflector rod 1057 is sequentially shifted, the clamp ring 1054 is contracted inwards of the movable groove 1052, the clamping piece 105 is rotated, the limiting column 1022 is separated from the limiting groove 1051, the second folding rod 102 is sequentially rotated outwards, the ladder stand 10 is unfolded under the action of the hinge 104, the ends of the first folding rod 101 and the second folding rod 102 are attached, the deflector rod 1057 is shifted again, the limiting column 1022 is clamped into the limiting groove 1051, the ladder stand is then lifted up, the ladder stand 10 is pulled away to two sides, the bottom end of the ladder stand 10 is opened to two sides under the limitation of the hinge seat 20, a herringbone shape is formed, and meanwhile the pulling piece 30 is synchronously unfolded to be horizontal, so that the climbing of the herringbone ladder stand can be carried out.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a folding herringbone cat ladder, includes two sets of ladder frames (10) that the structure is the same, two the top of ladder frames (10) is rotated through articulated seat (20) and is connected, its characterized in that, two sets of symmetry is provided with between ladder frames (10) and draws support piece (30), ladder frames (10) are including two first folding bars (101), two second folding bars (102) and a plurality of footboard (103), one end that articulated seat (20) was kept away from to first folding bar (101) is provided with hinge (104), the other end of hinge (104) with the end connection of second folding bar (102), footboard (103) equidistant set up in between first folding bar (101) with second folding bar (102), first folding bar (101) with second folding bar (102) meet the department and all are provided with joint piece (105).

2. A folding herringbone ladder according to claim 1, characterized in that the stay (30) comprises a first stay (301) and a second stay (302) hinged to each other, the other end of the first stay (301) being hinged to the side edge of one of the sets of ladder frames (10), the other end of the second stay (302) being hinged to the side edge of the other set of ladder frames (10).

3. The folding herringbone ladder according to claim 1, wherein a fixed column (1011) is arranged on one side of the first folding rod (101), one end of the clamping piece (105) is rotationally connected with the fixed column (1011), a limit column (1022) is arranged on one side of the second folding rod (102), a limit groove (1051) is formed in the other end of the clamping piece (105), and the limit column (1022) is clamped in the limit groove (1051).

4. The folding herringbone ladder according to claim 3, wherein the limiting groove (1051) is of a U-shaped structure and extends to the outer side edge of the clamping piece (105), a movable groove (1052) is formed in the inner wall of one side of the limiting groove (1051), a clamping groove (1053) is formed in the inner wall of the other side of the limiting groove (1051), both the movable groove (1052) and the clamping groove (1053) are of arc-shaped structures, a clamping ring (1054) is arranged in the movable groove (1052), and the end portion of the clamping ring (1054) penetrates through the limiting groove (1051) and then extends to the inside of the clamping groove (1053).

5. The folding herringbone ladder of claim 4, wherein the snap ring (1054) is movably arranged at the outer side of the limiting column (1022), and a space formed by the inner side of the snap ring (1054) and the inner wall of the limiting groove (1051) is matched with the diameter of the limiting column (1022).

6. The folding herringbone ladder of claim 5, wherein an arc spring (1055) is arranged in the movable groove (1052), and two ends of the arc spring (1055) are respectively abutted with the inner wall of the movable groove (1052) and the end part of the clamping ring (1054).

7. The folding herringbone ladder according to claim 6, wherein a sliding groove (1056) is formed in one side of the clamping piece (105), the sliding groove (1056) is communicated with the movable groove (1052), a deflector rod (1057) is arranged at one end, away from the clamping groove (1053), of the clamping ring (1054), the deflector rod (1057) is in clearance fit with the sliding groove (1056), and the end portion of the deflector rod (1057) penetrates through the sliding groove (1056) and then extends to the outer side of the clamping piece (105).

8. The folding herringbone ladder according to claim 1, characterized in that the hinge (104) is arranged on one side of the two groups of ladder frames (10) away from each other, and two ends of the hinge (104) are respectively connected with the first folding rod (101) and the second folding rod (102) through bolts or rivets.

9. A folding herringbone ladder according to claim 1, characterized in that the end of the second folding bar (102) remote from the first folding bar (101) is provided with a foot pad (1021).

10. A folding herringbone ladder according to claim 1, characterized in that the outer side of the first folding bar (101) is provided with a handle (1012).