Crawling ladder of tower crane

Abstract

The utility model relates to the technical field of crawling ladders, and provides a tower crane crawling ladder which comprises a crawling ladder body, a protective cage is arranged on the outer side of the crawling ladder body, first positioning grooves are formed in the two sides of the top of the crawling ladder body, and two movable rods are movably embedded in the rear side of the interior of the crawling ladder body; the front sides of the two movable rods are both fixedly provided with reset springs, the inner surfaces of the two reset springs are both movably arranged on the outer surfaces of the movable rods in a sleeving mode, and the other ends of the two reset springs are both fixedly installed on the rear side of the crawling ladder body. Through arrangement of a first positioning column and a second positioning column structure, a worker can quickly complete splicing and extending work of the crawling ladder body, meanwhile, through cooperation of the first positioning column and a first positioning groove and cooperation of the second positioning column and a second positioning groove, precise butt joint and stable positioning of the crawling ladder body can be ensured, and the working efficiency is improved. And the stability and safety of the spliced structure are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ladder stand, especially to a tower crane ladder stand. BACKGROUND

[0002] The tower crane is a kind of heavy equipment widely used in construction, engineering and other industries, mainly used for lifting heavy objects, especially in high-rise building construction, providing efficient vertical transportation solution, the tower crane is usually composed of tower body, rotating mechanism, lifting arm, hoisting mechanism and the like, and the ladder stand is one of important auxiliary facilities of the tower crane, which connects different height operation platforms and provides safe passage for operators.

[0003] In the prior art, such as Chinese patent number CN202320858304.6, the utility model provides a tower crane ladder stand, relating to the field of tower crane, including protection frame, ladder frame and ladder rod, the inside of protection frame is equipped with ladder frame, the inside of ladder frame is equipped with ladder rod, the both sides of the periphery of ladder rod are equipped with antiskid sleeve, the inside of ladder rod is equipped with drain hole, when climbing, the operator can choose to hold the antiskid sleeve on the periphery of the ladder rod, the antiskid sleeve made of rubber material and the antiskid pattern on the periphery of the antiskid sleeve can increase the friction with the operator's palm, avoid slipping, facilitate the operator to climb the ladder, when it is raining or after raining, the water stains on the ladder rod can be drained through the drain hole, avoid the ladder rod from being wet and slippery due to water stains or water droplets on the surface of the ladder rod.

[0004] Although the above-mentioned scheme has the advantages of avoiding the occurrence of the situation that the ladder rod is wet and slippery due to water stains or water droplets on the surface of the ladder rod, etc., but the tower crane ladder stand is not convenient for splicing and extending the ladder stand, which limits its adaptability in some scenarios due to the inconvenience of splicing. In the actual use of the tower crane, the working environment often changes, for example, during high-altitude operation, equipment maintenance or construction, the height and length of the ladder stand may need to be adjusted in time according to the working position. The above structure lacks a splicing mechanism, which makes it impossible to quickly adjust the ladder stand according to the working requirements, greatly affecting the work efficiency of the operator. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the problem of inconvenience in splicing and extending the ladder stand in the prior art, which limits its adaptability in some scenarios due to the inconvenience of splicing.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a tower crane ladder stand, including the ladder stand body, the outside of the ladder stand body is provided with the protective cage, the top of the ladder stand body both sides are all seted up with first location slot, the inside rear side of the ladder stand body is movably embedded with two movable rods, the front side of two movable rods is all fixedly installed with return spring, the inner surface of two return springs is movably covered in the outer surface of movable rod, and the other end of two return springs is all fixedly installed in the rear side of the ladder stand body, and the bottom of the ladder stand body both sides are all fixedly installed with first location column, and two first location columns are all matched with first location slot, and the inside of two first location columns is all seted up with connecting groove, and two movable rods are matched with connecting groove, and the top of the protective cage is seted up with second location slot.

[0007] As a preferred implementation, the bottom of the protective cage is fixedly installed with a second positioning column, the second positioning column is matched with the second positioning slot, and a plurality of first threaded holes are formed in the interior of the second positioning column.

[0008] The technical effect of the above further scheme is that the second positioning column can be embedded in the interior of the second positioning slot.

[0009] As a preferred implementation, a plurality of first bolts are threadedly connected to the interior of the protective cage close to the top side, the plurality of first bolts are matched with the first threaded holes, and a plurality of first connecting columns are fixedly installed on the front side of the ladder stand body.

[0010] The technical effect of the above further scheme is that the first bolt can be rotated and embedded in the interior of the first threaded hole.

[0011] As a preferred implementation, a plurality of second connecting columns are movably connected to the two sides of the plurality of first connecting columns, a second threaded hole is formed in the interior of the plurality of first connecting columns, and the plurality of second connecting columns are divided into a plurality of groups.

[0012] The technical effect of the above further scheme is that the first connecting column can be embedded in the middle of the two second connecting columns.

[0013] As a preferred implementation, a second bolt is threadedly connected to the interior of the plurality of second connecting columns, the plurality of second bolts are matched with the second threaded hole, and a plurality of reinforcing columns are movably connected to the rear side of the ladder stand body.

[0014] The technical effect of the above further scheme is that the second bolt can be rotated and embedded in the interior of the second threaded hole.

[0015] As a preferred implementation, the plurality of second connecting columns are fixedly installed on the inner wall of the protective cage, the plurality of reinforcing columns are internally threadedly connected with two third bolts, and the outer surfaces of the plurality of third bolts are threadedly connected in the interior of the ladder body.

[0016] The technical effect of the further scheme is that the reinforcing column can be fixed on the ladder body by the third bolt.

[0017] As a preferred implementation, the outer surfaces of the two sides of the other end of the plurality of reinforcing columns are movably connected with a plurality of mounting columns, the plurality of mounting columns are divided into a plurality of groups, and the interiors of the plurality of mounting columns are threadedly connected with fourth bolts.

[0018] The technical effect of the further scheme is that one end of the reinforcing column can be embedded in the middle of the two mounting columns.

[0019] As a preferred implementation, the interiors of the plurality of reinforcing columns are internally provided with third threaded holes close to the rear side, the plurality of fourth bolts are matched with the third threaded holes, and the plurality of mounting columns are fixedly installed in the interior of the protective cage.

[0020] The technical effect of the further scheme is that the fourth bolt can be rotated and embedded in the interior of the third threaded hole.

[0021] Compared with the prior art, the utility model has the advantages and positive effects that,

[0022] 1. The utility model discloses a ladder body, a first positioning column and a second positioning column are arranged, so that the staff can quickly complete the splicing and extension of the ladder body, the first positioning column and the first positioning groove, the second positioning column and the second positioning groove are matched to ensure the accurate butt joint and stable positioning of the ladder body, the structure after splicing is stable and safe, and the problem that the ladder is inconvenient to splice and extend in the prior art is solved.

[0023] 2. The utility model discloses a first connecting column and a reinforcing column are arranged, so that the staff can quickly complete the connection of the protective cage and the ladder body, greatly simplifies the installation process, improves the work efficiency, and the reinforcing column is connected with the ladder body and the protective cage to further strengthen the stability and deformation resistance of the structure, so that the overall structure remains stable during long-term use. DRAWINGS

[0024] Figure 1 A rear perspective structural schematic view of the tower crane ladder is provided.

[0025] Figure 2 A lower view three-dimensional structure schematic diagram of the tower crane crawling ladder is provided in the utility model;

[0026] Figure 3 An upper view three-dimensional structure schematic diagram of the tower crane crawling ladder is provided in the utility model;

[0027] Figure 4 A part three-dimensional structure schematic diagram of the tower crane crawling ladder is provided in the utility model Figure 1 ;

[0028] Figure 5 A part three-dimensional structure schematic diagram of the tower crane crawling ladder is provided in the utility model Figure 2 ;

[0029] Figure 6 A part three-dimensional structure schematic diagram of the tower crane crawling ladder is provided in the utility model Figure 3 .

[0030] Legend:

[0031] 1, the crawling ladder body; 101, the protective cage; 102, the first positioning groove; 103, the movable rod; 104, the reset spring; 105, the first positioning column; 106, the connecting groove; 107, the second positioning groove; 108, the second positioning column; 109, the first threaded hole; 110, the first bolt; 2, the first connecting column; 201, the second connecting column; 202, the second bolt; 203, the second threaded hole; 204, the reinforcing column; 205, the third bolt; 206, the mounting column; 207, the fourth bolt; 208, the third threaded hole. Specific implementation

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Embodiment 1, please refer to Figures 1 to 6The utility model provides a technical scheme: a tower crane ladder stand, including ladder stand body 1, the outside of ladder stand body 1 is provided with the protective cage 101, the top both sides of ladder stand body 1 are all set with first positioning slot 102, the inside rear side of ladder stand body 1 is movably embedded with two movable rods 103, the front side of two movable rods 103 is all fixedly installed with return spring 104, the inner surface of two return springs 104 is movably all set in the outer surface of movable rod 103, the other end of two return springs 104 is all fixedly installed in the rear side of ladder stand body 1, the bottom both sides of ladder stand body 1 are all fixedly installed with first positioning column 105, two first positioning columns 105 all with first positioning slot 102 are matched, the inside of two first positioning columns 105 all is set with connecting groove 106, two movable rods 103 all with connecting groove 106 are matched, the top of protective cage 101 is set with second positioning slot 107, the bottom of protective cage 101 is fixedly installed with second positioning column 108, second positioning column 108 with second positioning slot 107 is matched, the inside of second positioning column 108 is set with a plurality of first threaded holes 109, the inside of protective cage 101 is close to the top side and is connected with a plurality of first bolts 110, a plurality of first bolts 110 all with first threaded hole 109 are matched, the front side of ladder stand body 1 is fixedly installed with a plurality of first connecting columns 2.

[0034] In the embodiment, when the ladder stand body 1 needs to be spliced and extended, the personnel can take the additional ladder stand body 1 and place it on the top of the first ladder stand body 1, pull the movable rod 103 backward, extend the return spring 104, and press down the additional ladder stand body 1, embed the first positioning column 105 into the inside of the first positioning slot 102, and make the second positioning column 108 on the protective cage 101 enter the inside of the second positioning slot 107, then release the movable rod 103, reset the return spring 104, and pull the movable rod 103 forward by the return spring 104, and then embed the movable rod 103 into the inside of the connecting groove 106, to preliminarily fix the two ladder stand bodies 1, then rotate the first bolt 110 and embed it into the inside of the first threaded hole 109, and then complete the installation of the two ladder stand bodies 1, and through the arrangement of the first positioning column 105 and the second positioning column 108 structure, not only can the personnel quickly complete the splicing and extension work of the ladder stand body 1, but also the cooperation of the first positioning column 105 and the first positioning slot 102, and the second positioning column 108 and the second positioning slot 107 can ensure the accurate butt joint and stable positioning of the ladder stand body 1, and ensure the stability and safety of the spliced structure.

[0035] Embodiment 2, as Figures 1 to 6As shown, the two sides of the plurality of first connecting columns 2 are movably connected with second connecting columns 201, the interiors of the plurality of first connecting columns 2 are provided with second threaded holes 203, the plurality of second connecting columns 201 are divided into groups, the interiors of the plurality of groups of second connecting columns 201 are threadedly connected with second bolts 202, the plurality of second bolts 202 are matched with the second threaded holes 203, the rear side of the ladder body 1 is movably connected with a plurality of reinforcing columns 204, the plurality of groups of second connecting columns 201 are fixedly installed on the inner wall of the protective cage 101, the interiors of the plurality of reinforcing columns 204 are threadedly connected with two third bolts 205, the outer surfaces of the plurality of third bolts 205 are threadedly connected in the interiors of the ladder body 1, the outer surfaces of the other ends of the plurality of reinforcing columns 204 are movably connected with mounting columns 206, the plurality of mounting columns 206 are divided into groups, the interiors of the plurality of groups of mounting columns 206 are threadedly connected with fourth bolts 207, the interiors of the plurality of reinforcing columns 204 close to the rear side are provided with third threaded holes 208, the plurality of fourth bolts 207 are matched with the third threaded holes 208, and the plurality of groups of mounting columns 206 are fixedly installed in the interiors of the protective cage 101.

[0036] In the embodiment, the staff can first set the protective cage 101 on the outer surface of the ladder body 1, then push the ladder body 1 forward, so that the first connecting column 2 can enter the middle of the two second connecting columns 201, and rotate the second bolt 202 to embed it in the interior of the second threaded hole 203, then fix the reinforcing column 204 on the ladder body 1 through the third bolt 205, and embed the other end of the reinforcing column 204 in the center of the two mounting columns 206 on the protective cage 101, then rotate the fourth bolt 207 to embed it in the interior of the third threaded hole 208, thereby completing the installation of the protective cage 101, and through the structure of the first connecting column 2 and the reinforcing column 204, not only can the staff quickly connect the protective cage 101 and the ladder body 1, greatly simplifying the installation process and improving the work efficiency, but also through the connection of the reinforcing column 204 with the ladder body 1 and the protective cage 101, the stability and anti-deformation ability of the structure can be further strengthened, so that the overall structure can remain stable during long-term use.

[0037] Working principle: in use, when the ladder body 1 needs to be spliced and extended, the personnel can take the additional ladder body 1 and place it on the top of the first ladder body 1, pull the movable rod 103 backward, make the reset spring 104 extend, and press down the additional ladder body 1, make the first positioning column 105 embedded into the inside of the first positioning slot 102, and make the second positioning column 108 on the protective cage 101 enter the inside of the second positioning slot 107, then release the movable rod 103, make the reset spring 104 reset, and pull the movable rod 103 forward by the reset spring 104, so as to make the movable rod 103 embedded into the inside of the connecting slot 106, to preliminarily fix the two ladder bodies 1, then the personnel rotates the first bolt 110 and embeds it into the inside of the first threaded hole 109, so as to complete the installation of the two ladder bodies 1, and through the arrangement of the first positioning column 105 and the second positioning column 108 structure, the personnel can quickly complete the splicing and extension of the ladder body 1, and the cooperation of the first positioning column 105 and the first positioning slot 102, and the second positioning column 108 and the second positioning slot 107 can ensure the accurate butt joint and stable positioning of the ladder body 1, and ensure the stability and safety of the spliced structure.

[0038] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the protection scope of the present application technical scheme.

Claims

1. A tower crane ladder stand comprising a ladder stand body (1), characterised in that: The outer side of the ladder body (1) is provided with a protective cage (101), the top of the ladder body (1) is provided with a first positioning groove (102) on both sides, the inner rear side of the ladder body (1) is movably embedded with two movable rods (103), the front side of the two movable rods (103) is fixedly installed with a reset spring (104), the inner surface of the two reset springs (104) is movably sleeved on the outer surface of the movable rod (103), the other end of the two reset springs (104) is fixedly installed on the rear side of the ladder body (1), the bottom of the ladder body (1) is fixedly installed with a first positioning column (105) on both sides, the two first positioning columns (105) are matched with the first positioning groove (102), the inner side of the two first positioning columns (105) is provided with a connecting groove (106), the two movable rods (103) are matched with the connecting groove (106), and the top of the protective cage (101) is provided with a second positioning groove (107).

2. A tower crane cat ladder according to claim 1, characterized in that: The bottom of the protective cage (101) is fixedly installed with a second positioning column (108), the second positioning column (108) is matched with the second positioning groove (107), and the inner side of the second positioning column (108) is provided with a plurality of first threaded holes (109).

3. A tower crane cat ladder according to claim 2, characterized in that: The inner side of the protective cage (101) is threadedly connected with a plurality of first bolts (110) close to the top side, the plurality of first bolts (110) are matched with the first threaded holes (109), and the front side of the ladder body (1) is fixedly installed with a plurality of first connecting columns (2).

4. A tower crane cat ladder according to claim 3, characterized in that: The two sides of the plurality of first connecting columns (2) are movably connected with second connecting columns (201), the inner side of the plurality of first connecting columns (2) is provided with second threaded holes (203), and the plurality of second connecting columns (201) are divided into a plurality of groups in pairs.

5. A tower crane cat ladder according to claim 4, characterised in that: The inner side of the plurality of second connecting columns (201) is threadedly connected with second bolts (202), the plurality of second bolts (202) are matched with the second threaded holes (203), and the rear side of the ladder body (1) is movably connected with a plurality of reinforcing columns (204).

6. A tower crane cat ladder according to claim 5, characterized in that: The plurality of second connecting columns (201) are fixedly installed on the inner wall of the protective cage (101), the inner side of the plurality of reinforcing columns (204) is threadedly connected with two third bolts (205), and the outer surface of the plurality of third bolts (205) is threadedly connected in the inner side of the ladder body (1).

7. A tower crane cat ladder according to claim 6, characterised in that: The outer surface of the other end of the plurality of reinforcing columns (204) is movably connected with mounting columns (206), the plurality of mounting columns (206) are divided into a plurality of groups in pairs, and the inner side of the plurality of mounting columns (206) is threadedly connected with fourth bolts (207).

8. A tower crane cat ladder according to claim 7, characterized in that: The inner side of the plurality of reinforcing columns (204) is provided with third threaded holes (208) close to the rear side, the plurality of fourth bolts (207) are matched with the third threaded holes (208), and the plurality of mounting columns (206) are fixedly installed in the inner side of the protective cage (101).

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