CN212337142U - Support section bar of climbing tool - Google Patents

Abstract

The utility model discloses a column section bar of apparatus of ascending a height, including a section bar main part, the section bar main part has a cross section, the cross section includes an arc, two connecting plates and both sides board, and the arc sets up along left right direction, and two connecting plates are even located both ends about the arc, and two connecting plate downside are even located to the both sides board, and the curvature radius of arc diminishes to both ends by centre gradually, and the connecting plate is equipped with interior outer fillet and transition platform, and the curb plate is equipped with dodges the groove, dodges and has upper and lower limit point on the groove, the utility model discloses an arc, interior outer fillet and the structure of dodging the groove for the section bar can keep certain intensity in the reduction wall thickness, and guarantee the section bar through the arc and dodge the structure in groove and can dodge inner structure at the slip in-process, intensity is reliable when having satisfied the section bar and using, and light in weight to do not interfere.

Description

Support section bar of climbing tool

Technical Field

The utility model relates to a section bar, concretely relates to prop up section bar of apparatus of ascending a height.

Background

Profiles are typically geometrically shaped objects made of aluminum, iron or steel, as well as other materials with certain strength and toughness, by rolling, extrusion, casting, and the like. The sectional material is characterized by having certain appearance size and the section of the sectional material is in a fixed shape. Based on the characteristics, the section bar can have certain mechanical and physical properties, so that the section bar is widely applied to various production and manufacturing fields, such as the ascending tool support.

The climbing tool comprises a ladder, an operation platform, a scaffold and the like, and a bearing support column of the climbing tool needs to have certain strength so as to achieve the effect of stable support and ensure the safety and reliability of personnel operation. In order to ensure strength and portability of the existing climbing tool, the section bars are mostly adopted for the bearing structure. Since the strength of the profile is related to its thickness and cross-sectional structure, the thicker the profile, the higher the strength, but the disadvantage is that the overall weight increases and the cost increases. Therefore, the reasonable section structure can ensure that the thickness of the section bar is reduced under the condition of enough overall strength, so that the overall weight is reduced, the cost is reduced, and the carrying is convenient.

The telescopic ladder is a common climbing tool and is characterized in that the telescopic ladder can be extended and shortened in the height direction like a fishing rod, and the size of the telescopic ladder is small after the telescopic ladder is shortened, so that the telescopic ladder is very convenient to carry and store. In the process of extending and shortening the extension ladder, the outer ladder needs to slide up and down relative to the inner ladder, and some internal structures (such as rivets) need to be avoided in the sliding process, so that when the section of the outer ladder is designed, the requirements of high strength and light weight need to be met, and some avoiding structures need to be designed to meet the using requirements.

In summary, the present invention is to provide a novel profile structure that satisfies the requirements of sufficient strength, light weight and no interference with other parts, and it is an object of the present invention.

Disclosure of Invention

The utility model aims at providing a support section bar of the apparatus of ascending a height.

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

the utility model provides a support column section bar of apparatus of ascending a height, includes a section bar main part, the section bar main part has a cross section, and its cross section is the axisymmetric shape for the symmetry axis, the cross section includes an arc, two connecting plates and both sides board, follows the extending direction of symmetry axis is upper and lower direction, follows the direction of the perpendicular to symmetry axis in the plane of cross section place is left right direction, two connecting plates reach the both sides board homogeneous phase is relative the symmetry axis bilateral symmetry sets up, and, the arc two connecting plates with the both sides board defines jointly and forms an open loop cavity, the below of open loop cavity is uncovered, wherein:

the arc-shaped plate is positioned at the top of the section bar, the main body of the arc-shaped plate extends along the left-right direction, and the arc-shaped plate is arched upwards to form a vault; the arc-shaped plate is an axisymmetric figure relative to the symmetry axis, the curvature radius of the arc-shaped plate is a variable value, and the curvature radius is gradually reduced from the middle to the left end and the right end;

the two connecting plates comprise a first connecting plate and a second connecting plate, the first connecting plate is connected to the left side of the arc-shaped plate, the second connecting plate is connected to the right side of the arc-shaped plate, the right end point of the section of the first connecting plate is connected with the left end point of the section of the arc-shaped plate in the cross section, and the left end point of the section of the second connecting plate is connected with the right end point of the section of the arc-shaped plate;

the two side plates comprise a first side plate and a second side plate, the first side plate and the second side plate extend along the up-down direction and are respectively connected to the lower sides of the first connecting plate and the second connecting plate, wherein the upper side of the first side plate is connected with the left side of the first connecting plate, the upper side of the second side plate is connected with the right side of the second connecting plate, the cross section shows that the upper end point of the section of the first side plate is connected with the left end point of the section of the first connecting plate, and the upper end point of the section of the second side plate is connected with the right end point of the section;

the first connecting plate comprises a first inner fillet and a first outer fillet, the concave directions of the two fillets are opposite, the second connecting plate comprises a second inner fillet and a second outer fillet, the concave directions of the two fillets are opposite, the first inner fillet is positioned at the connecting position of the first connecting plate and the arc-shaped plate, the second inner fillet is positioned at the connecting position of the second connecting plate and the arc-shaped plate, the first outer fillet is positioned at the connecting position of the first connecting plate and the first side plate, and the second outer fillet is positioned at the connecting position of the second connecting plate and the second side plate;

the first curb plate inboard is equipped with the first groove of dodging, the second curb plate inboard is equipped with the second and dodges the groove, and the first groove of dodging and the second notch of dodging the groove all face the center of ring-opening cavity, and the width direction of notch corresponds the upper and lower extending direction of curb plate.

The relevant content in the above technical solution is explained as follows:

1. in the above-mentioned scheme, the curvature radius of arc is the variation value, its curvature radius is by the centre to controlling both ends and diminishing progressively, the vault of arc is a flat ascending structure, make the arc at the slip in-process, inner structure (like the rivet) can be dodged, it is more smooth and easy to slide, and this kind of gradual change curvature radius's arc, when receiving the power of upper and lower direction, have better compressive strength for straight panel, when receiving left and right directions's power, have better bending strength for the great arc of centre curvature, based on this structure, the section bar can keep certain intensity when reducing the wall thickness.

2. In the above scheme, the two side plates respectively comprise an inner fillet, an outer fillet and a transition table, the inner fillet is connected with the outer fillet through the transition table, the bending strength of the integral profile is enhanced through the fillet transition structure, the transition table can limit the internal structure, and based on the transition plate structure, the profile can maintain certain strength while reducing the wall thickness.

3. In the above-mentioned scheme, two the curb plate all is equipped with one in the inboard and dodges the groove for the curb plate can dodge inner structure (like the rivet) at the slip in-process, and it is more smooth and easy to slide, and based on this structure, the section bar can keep certain intensity when reducing the wall thickness.

4. In the above-mentioned scheme, two keep away about the groove both ends all be equipped with the limiting point, upper limit point is semi-circular boss, and lower limit point is the integrative boss of bending type of curb plate lower extreme, plays the limiting displacement to inner structure, it can also be concave structure to dodge the groove, and the upper groove wall is upper limit point, and lower groove wall is lower limit point, plays limiting displacement to inner structure by upper and lower groove wall.

The utility model discloses a theory of operation and advantage as follows:

the utility model discloses the pillar section bar of apparatus of ascending a height, section bar main part have a cross section, the cross section includes an arc, two connecting plates and both sides board, and the arc sets up along the left and right sides direction, and both ends about the arc are even located to two connecting plates, and two connecting plates downside are even located to the both sides board, and the curvature radius of arc diminishes gradually to both ends by middle, and the connecting plate is equipped with interior external fillet and transition platform, and the curb plate is equipped with and steps over the groove.

During operation, the section bar can slide relative to the inner structure, the arc plate and the avoidance groove can avoid the inner structure, the upper limiting point and the lower limiting point of the avoidance groove limit the inner structure together with the transition table, and the arc plate, the inner and outer circular corners and the avoidance groove are used for enhancing the strength of the whole section bar, so that the weight of the whole section bar can be reduced in wall thickness and weight. Through test comparison, the thickness of the section is reduced from 1.2mm to 1.02mm, and the integral strength still meets the requirement.

Compared with the prior art, the utility model has the advantages of it is following:

firstly, the strength is reliable, and the structure of the arc-shaped plate, the inner and outer circular corners and the avoidance groove strengthens the strength of the integral sectional material.

And secondly, the weight is light, and due to the structural design of strength reinforcement, the wall thickness of the section is reduced, and the overall weight is reduced.

Thirdly, the sliding is smooth and easy without interference, the arc-shaped plate and the structure of the avoiding groove ensure that the section bar can avoid an internal structure in the sliding process, and the use requirement is met.

Drawings

FIG. 1 is a sectional view of a profile;

FIG. 2 is a sectional assembly view;

FIG. 3 is an enlarged view of part A of the assembly

In the above drawings: 1. a profile body; 10, an axis of symmetry; an arcuate plate; a first connection plate; a first fillet 121; a first bullnose; a first transition table; a second connecting plate; a second fillet; a second outer fillet 132; a second transition table; a first side panel; 141, a first avoidance slot; 142. a first upper limiting site; a first lower limiting site; a second side panel; a second avoidance slot; a second upper limiting site; 153. a second lower limiting site; an open loop cavity; 2, an inner ladder strut; step 3, outer ladder step; 4, riveting; 5, stepping the inner ladder; and 51, fixing and flanging the inner ladder.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): support section bar of climbing tool

The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

Now, the working principle of the present invention is explained as follows:

referring to fig. 1-3, a support column section bar of apparatus of ascending a height, includes a section bar main part 1, section bar main part 1 has a cross section, and its cross section is the axisymmetric shape for symmetry axis 10, the cross section includes an arc 11, two connecting plates and both sides board, follows the extending direction of symmetry axis 10 is upper and lower direction, follows the direction of the perpendicular to symmetry axis 10 in the cross section place plane is left right direction, two connecting plates reach both sides board all is relative symmetry axis 10 bilateral symmetry sets up, and, arc 11 two connecting plates with both sides board define jointly and form an open loop cavity 16, the below of open loop cavity 16 is uncovered.

As shown in fig. 1, the arc plate 11 is located at the top of the profile, the main body of the arc plate extends along the left-right direction, and the arc plate 11 is arched upwards to form a dome shape; the arc plate 11 is in an axisymmetric pattern relative to the symmetry axis 10; the curvature radius of arc 11 is the variation value, its curvature radius is by the centre to controlling both ends and diminishing progressively, make arc 11 at the slip in-process, inner structure (like the rivet) can be dodged, it is more smooth and easy to slide, and this kind of gradual change curvature radius's arc 11, when receiving the power of upper and lower direction, have better compressive strength for straight panel, when receiving the power of left and right directions, have better bending strength for the great arc of centre curvature, based on this structure, the section bar can keep certain intensity when reducing the wall thickness.

As shown in fig. 1, the two connecting plates include a first connecting plate 12 and a second connecting plate 13, the first connecting plate 12 is connected to the left side of the arc-shaped plate 11, and the second connecting plate 13 is connected to the right side of the arc-shaped plate 11.

As shown in fig. 1, the two side plates include a first side plate 14 and a second side plate 15, the first side plate 14 and the second side plate 15 extend in the up-down direction and are respectively connected to the lower sides of the first connecting plate 12 and the second connecting plate 13, wherein the upper side of the first side plate 14 is connected to the left side of the first connecting plate 12, and the upper side of the second side plate 15 is connected to the right side of the second connecting plate 13.

As shown in fig. 1, the first connecting plate 12 includes a first fillet 121 and a first fillet 122, the second connecting plate 13 includes a second fillet 131 and a second fillet 132, the first fillet 121 is located at the connection position of the first connecting plate 12 and the arc plate 11, the first fillet 122 is located at the connection position of the first connecting plate 12 and the first side plate 14, the second fillet 131 is located at the connection position of the second connecting plate 13 and the arc plate 11, and the second fillet 132 is located at the connection position of the second connecting plate 13 and the second side plate 15.

As shown in fig. 1, first curb plate 14 inboard is equipped with the first groove 141 of dodging, second curb plate 15 inboard is equipped with the second and dodges groove 151, and the first notch of dodging groove 141 and second and dodging groove 151 all faces the center of ring-opening cavity 16, and the width direction of notch corresponds the upper and lower extending direction of curb plate, and the structure of dodging the groove makes the curb plate at the slip in-process, can dodge inner structure (like the rivet), and it is more smooth and easy to slide, and based on this structure, the section bar can keep certain intensity when reducing the wall thickness.

As shown in fig. 2 and fig. 3, a shown ascending tool is an extension ladder, the structure of the extension ladder comprises a section bar main body 1, inner ladder struts 2, an outer ladder step 3, rivets 4 and inner ladder steps 5, wherein the section bar main body 1 is a section bar used by the outer ladder, the inner ladder struts 2 are nested in an open-loop cavity 16 of the section bar main body 1, the outer ladder steps 3 and a side plate of the section bar main body 1 are fixedly connected, the rivets 4 are connected with the outer ladder steps 3 and the section bar main body 1, the inner ladder steps 5 comprise inner ladder fixing flanges 51, the inner ladder steps 5 are arranged between the two inner ladder struts 2 in a penetrating manner, and the inner ladder fixing flanges 51 are clamped between the inner ladder struts 2 and the arc plates 1.

As shown in fig. 3, the arc plate 11 avoids the inner ladder fixing flange 51, the first avoiding groove 141 avoids the rivet 4 and other inner rivets, and based on the avoiding design, the profile main body 1 slides more smoothly on the inner ladder strut 2, and can keep certain strength while reducing the wall thickness.

Preferably, referring to fig. 1, the first connecting plate 12 further includes a first transition table 123, the second connecting plate 13 further includes a second transition table 133, the first inner fillet 121 is connected to the first outer fillet 122 through the first transition table 123, the second inner fillet 131 is connected to the second outer fillet 132 through the second transition table 133, the fillet transition structure enhances the bending strength of the integral profile, the transition table can limit the inner ladder strut 2, and based on the structure of the adapter plate, the profile can maintain a certain strength while reducing the wall thickness.

Preferably, referring to fig. 1, the first avoiding groove 141 is provided at an upper end thereof with a first upper limit point 142, at a lower end thereof with a first lower limit point 143, the second avoiding groove 151 is provided at an upper end thereof with a second upper limit point 152, at a lower end thereof with a second lower limit point 153, the upper limit points are all semicircular bosses, the lower limit points are bosses formed by integrally bending the lower ends of the side plates, and the first side plate 14 limits the rivet 4 and other rivets on the inner ladder strut based on a limiting structure.

Other embodiments and structural changes of the present invention are described below as follows:

1. in the above embodiment, dodge the groove and be equipped with upper and lower limit point, upper limit point is semi-circular boss, and lower limit point is the integrative boss of bending type formation of curb plate lower extreme, nevertheless the utility model discloses be not limited to this, dodge the groove and can also be the indent structure, go up the groove wall and be upper limit point, lower recess wall is lower limit point, plays limiting displacement, can replace wantonly to inner structure by upper and lower groove wall the utility model discloses a structure all should be included into the protection band. As would be understood and accepted by those skilled in the art.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. A prop profile for a climbing apparatus, comprising a profile body (1), said profile body (1) having a cross-section which is axisymmetric with respect to a symmetry axis (10), characterized in that: the cross section includes an arc (11), two connecting plates and both sides board, follows the extending direction of symmetry axis (10) is upper and lower direction, follows the direction of perpendicular to symmetry axis (10) in the plane of cross section place is left right direction, two connecting plates reach both sides board homogeneous phase is right symmetry axis (10) bilateral symmetry sets up, and, arc (11) two connecting plates with both sides board defines jointly and forms an open loop cavity (16), the below of open loop cavity (16) is uncovered, wherein:

the arc-shaped plate (11) is positioned at the top of the section bar and is in a flat dome shape, and the arc-shaped plate (11) is in an axisymmetric pattern relative to the symmetric axis (10);

the two connecting plates comprise a first connecting plate (12) and a second connecting plate (13), the first connecting plate (12) is connected to the left side of the arc-shaped plate (11), and the second connecting plate (13) is connected to the right side of the arc-shaped plate (11);

the two side plates comprise a first side plate (14) and a second side plate (15), the first side plate (14) and the second side plate (15) extend along the vertical direction and are respectively connected to the lower sides of the first connecting plate (12) and the second connecting plate (13), wherein the upper side of the first side plate (14) is connected with the left side of the first connecting plate (12), and the upper side of the second side plate (15) is connected with the right side of the second connecting plate (13);

the first connecting plate (12) comprises a first inner fillet (121) and a first outer fillet (122), the fillets are opposite in concave direction, the second connecting plate (13) comprises a second inner fillet (131) and a second outer fillet (132), the fillets are opposite in concave direction, the first inner fillet (121) is located at the joint of the first connecting plate (12) and the arc-shaped plate (11), the second inner fillet (131) is located at the joint of the second connecting plate (13) and the arc-shaped plate (11), the first outer fillet (122) is located at the joint of the first connecting plate (12) and the first side plate (14), and the second outer fillet (132) is located at the joint of the second connecting plate (13) and the second side plate (15);

first curb plate (14) inboard is equipped with first groove (141) of dodging, second curb plate (15) inboard is equipped with the second and dodges groove (151), and first groove (141) of dodging and the notch that the second dodged groove (151) all move towards the center of ring-opening cavity (16), and the width direction of notch corresponds the upper and lower extending direction of curb plate.

2. Profile according to claim 1, characterized in that: the curvature radius of the arc-shaped plate (11) is a variable value, and the curvature radius of the arc-shaped plate is gradually reduced from the middle of the arc-shaped plate to the left side and the right side.

3. Profile according to claim 1, characterized in that: the first groove (141) upper end of dodging is equipped with first upper limit point (142), and the lower extreme is equipped with first lower limit point (143), the second groove (151) upper end of dodging is equipped with second upper limit point (152), and the lower extreme is equipped with second lower limit point (153), and the upper limit point is semi-circular boss, and the lower limit point is the boss that the integrative bending type of curb plate lower extreme formed.

4. Profile according to claim 1, characterized in that: two the dodging groove is the indent structure, and the upper groove wall is upper limit point, and lower groove wall is lower limit point.

5. Profile according to claim 1, characterized in that: the first connecting plate (12) further comprises a first transition table (123), the second connecting plate (13) further comprises a second transition table (133), the first fillet (121) and the first bullnose (122) are connected through the first transition table (123), and the second fillet (131) and the second bullnose (132) are connected through the second transition table (133).

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