Portable insulating ladder

Abstract

The utility model relates to the technical field of insulating ladders, in particular to a portable insulating ladder which comprises a left ladder column, a right ladder column and a plurality of cross arms, the left ladder column and the right ladder column are respectively formed by sequentially connecting a plurality of telescopic and foldable ladder sections in a sleeved mode, and the cross arms are respectively installed between the corresponding left ladder section and the corresponding right ladder section. A connecting rod is mounted at the bottom of the left ladder column and the bottom of the right ladder column, rollers are arranged at the two ends of the connecting rod, a foldable fixing device is arranged between the two rollers, and straps are mounted on the left ladder column and the right ladder column. The fixing device capable of being turned over is arranged, the fixing device can be folded up, an operator can conveniently move the insulating ladder on the flat ground through the rolling wheels arranged on the connecting rods at the bottom of the insulating ladder, and the labor intensity of the operator is reduced; when a road where the insulating ladder needs to be transported is complex and difficult to walk, an operator can carry the insulating ladder on the back through the straps, and the situation that the operator falls down due to the fact that the gravity center is unstable when the operator holds the insulating ladder with hands is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating ladders, in particular to a portable insulating ladder. Background Technique

[0002] With the changes of the times and technology, people's requirements for portable insulating ladders are getting higher and higher; there are certain drawbacks in the existing portable insulating ladders during use: First, during use, the stability of the bottom of the ladder cannot be increased according to the actual use situation, which is rather inconvenient; Second, most of the existing portable insulating ladders can only be carried to the position where they are needed by the operator by hand. When the road environment is complex and difficult to walk during transportation, the portable insulating ladder held by hand will cause a burden on the operator, resulting in the operator being unable to better master their own balance, and there is a safety hazard that the operator may fall. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a portable insulating ladder. By setting a foldable fixing device, the fixing device can be folded up. Through the rollers arranged on the bottom connecting rod of the insulating ladder, it is convenient for the operator to move the insulating ladder on a relatively flat ground, reducing the labor intensity of the operator; when the road for transporting the insulating ladder is complex and difficult to walk, the operator can carry the insulating ladder on the back through the shoulder strap, avoiding falling due to the unstable center of gravity caused by the operator holding the insulating ladder by hand, and ensuring the safety of the operator when transporting the insulating ladder.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A portable insulating ladder, comprising a left ladder column, a right ladder column and a plurality of cross arms. The left ladder column and the right ladder column are respectively composed of a plurality of telescopically foldable ladder sections sleeved in sequence. The plurality of cross arms are respectively installed between the corresponding left and right ladder sections. The bottom of the left ladder column and the right ladder column is provided with a connecting rod. The two ends of the connecting rod are provided with rollers. A foldable fixing device is arranged between the two rollers. Shoulder straps are installed on both the left ladder column and the right ladder column.

[0006] Preferably, the two ends of the cross arm are respectively provided with limit members for fixing the corresponding ladder section, and the upper and lower ends of the ladder section are respectively provided with limit holes adapted to the limit members.

[0007] Preferably, the shoulder straps are arranged on the same side of the left ladder column and the right ladder column, and the length of the shoulder straps is adjustable.

[0008] Preferably, the fixing device includes a front folding fixing member and a rear folding fixing member. The front folding fixing member includes rotating rings installed at both ends of a connecting rod. L-shaped rotating rods are respectively installed on the two rotating rings. A connecting plate is installed between the two rotating rods. The structure of the rear folding fixing member is the same as that of the front folding fixing member. Fixing holes are provided on the connecting plates of the front folding fixing member and the rear folding fixing member.

[0009] Preferably, the rotating rings on the same side of the front folding fixing member and the rear folding fixing member are in contact with each other. The rotating rods of the front folding fixing member and the rear folding fixing member can be in staggered contact with each other. First threaded holes adapted to each other are provided at the positions where the front folding fixing member and the rear folding fixing member are in staggered contact. A limiting screw is installed in the first threaded hole. Removable anti-slip and wear-resistant layers are installed on the sides of the front folding fixing member and the rear folding fixing member that can contact the ground.

[0010] Preferably, connectors are provided on the sides of the front folding fixing member and the rear folding fixing member away from the anti-slip and wear-resistant layers. The connectors on the front folding fixing member and the rear folding fixing member can be in staggered contact with each other. Second threaded holes are provided on the connectors of the front folding fixing member and the rear folding fixing member that can be in staggered contact with each other. The structures and specifications of the second threaded holes and the first threaded holes are the same.

[0011] Preferably, when the anti-slip and wear-resistant layers of the front folding fixing member and the rear folding fixing member are in contact with the ground, the horizontal height of the bottom end of the rotating rod is lower than the horizontal height of the lowest point of the roller.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The structure of the present utility model is simple. By setting a foldable fixing device, the fixing device can be folded up. Through the rollers provided on the connecting rod at the bottom of the insulating ladder, it is convenient for the operator to move the insulating ladder on a relatively flat ground, reducing the labor intensity of the operator; when the road for transporting the insulating ladder is complex and difficult to walk, the operator can carry the insulating ladder on the back through the shoulder strap, avoiding falling due to the unstable center of gravity caused by the operator holding the insulating ladder by hand, and ensuring the safety of the operator when transporting the insulating ladder.

[0014] 2. By setting a foldable fixing device in this device, the fixing device can be folded and opened to make the fixing device contact the ground, increasing the contact area with the ground, ensuring that the bottom of the insulating ladder is fixed on the ground, and then stretching out the telescopic insulating ladder to make the top of the insulation lean against a high place to form a stable diagonal support, facilitating the operator to climb to a high place through the insulating ladder for work. The fixing device can prevent the bottom of the insulating ladder from sliding when the operator climbs onto the insulating ladder, resulting in the insulating ladder slipping and causing harm to the operator during operation.

[0015] 3. By opening the front folding fixing member and the rear folding fixing member of the device, it is ensured that the rotating rods on the front folding fixing member and the rear folding fixing member are in contact with the ground. The connecting plates on the cooperating rotating rods can then be in contact with the ground. When the site where the insulating ladder needs to be used is a dirt ground, since fixing holes are provided on the connecting plates, it is convenient for the operator to drive the fixing nails into the dirt through the fixing holes, ensuring the stability of the front folding fixing member and the rear folding fixing member, and avoiding the bottom of the insulating ladder from sliding when the operator climbs the insulating ladder, thus preventing harm to the operator on the insulating ladder and improving the safety of using the device.

[0016] 4. By providing mating first threaded holes on the rotating top rods of the front folding fixing member and the rear folding fixing member of the device, when the anti-slip and wear-resistant layer is in contact with the ground, by installing the limit screw in the first threaded holes of the front folding fixing member and the rear folding fixing member, it can be ensured that the anti-slip and wear-resistant layer effectively contacts the ground, ensuring the stability of the bottom of the insulating ladder during use.

[0017] 5. By folding the front folding fixing member and the rear folding fixing member upwards, the connecting members on the front folding fixing member and the rear folding fixing member are in staggered contact with each other. At this time, the second threaded holes on the staggered connecting members can coincide. By installing the limit screw in the second threaded holes, it can be avoided that the front folding fixing member and the rear folding fixing member become loose and open when the insulating ladder is moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the fixing device of the present utility model in the unfolded state;

[0019] Figure 2 is a schematic structural diagram of the fixing device of the present utility model in the folded state.

[0020] In the figure: 1, left ladder post; 2, right ladder post; 3, ladder section; 4, cross arm; 5, back strap; 6, connecting rod; 7, roller; 8, rotating rod; 9, first threaded hole; 10, connecting plate; 11, second threaded hole; 12, connecting member; 13, fixing hole; 14, anti-slip and wear-resistant layer; 15, limit screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in 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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] A portable insulating ladder has a structure as follows Figure 1 - Figure 2 shown, including a left ladder post 1, a right ladder post 2 and a plurality of crossbars 4. The left ladder post 1 and the right ladder post 2 are respectively composed of a plurality of telescopically foldable ladder sections 3 sleeved in sequence. A plurality of the crossbars 4 are respectively installed between the corresponding left and right ladder sections 3. A connecting rod 6 is installed at the bottom of the left ladder post 1 and the right ladder post 2. Rollers 7 are arranged at both ends of the connecting rod 6. A foldable fixing device is arranged between the two rollers 7. Shoulder straps 5 are installed on both the left ladder post 1 and the right ladder post 2.

[0024] Through the provided ladder sections 3 and crossbars 4, the telescoping of the insulating ladder is facilitated. When it is necessary to use an insulator to climb to a high place, by setting the foldable fixing device, the fixing device can be folded and opened to make the fixing device contact the ground, increasing the contact area with the ground, ensuring that the bottom of the insulating ladder is fixed on the ground. Then, the telescopic insulating ladder is stretched out so that the top of the insulator leans against a high place to form a stable inclined support, facilitating the operator to climb to a high place through the insulating ladder for work. And the fixing device can prevent the bottom of the insulating ladder from sliding when the operator climbs onto the insulating ladder, resulting in the insulating ladder slipping and causing harm to the operator during operation;

[0025] After use, by setting the foldable fixing device, the fixing device can be folded up. Through the rollers 7 arranged on the connecting rod 6 at the bottom of the insulating ladder, it is convenient for the operator to move the insulating ladder on a relatively flat ground, reducing the labor intensity of the operator; when the road for transporting the insulating ladder is complex and difficult to walk, through the provided shoulder straps 5, it is convenient for the operator to carry the insulating ladder on the back, avoiding the operator falling due to unstable center of gravity when holding the insulating ladder by hand, ensuring the safety of the operator when transporting the insulating ladder.

[0026] Limiters for fixing the corresponding ladder sections 3 are respectively arranged at both ends of the crossbar 4. Limit holes adapted to the limiters are respectively arranged at the upper and lower ends of the ladder section 3.

[0027] Since limit holes are opened at both the upper and lower ends of the ladder section 3, and limiters are arranged on the corresponding ladder section 3, it is convenient for the insulator to be stretched out and the limiters to cooperate with the limit holes at the bottom of the ladder section 3 to prevent the stretched-out multiple ladder sections 3 from retracting again; when the insulating ladder is retracted, the limit holes at the top of the ladder section 3 can cooperate with the limiters to prevent the retracted multiple ladder sections 3 from slipping out when inverted.

[0028] The shoulder straps 5 are arranged on the same side of the left ladder post 1 and the right ladder post 2, and the length of the shoulder straps 5 is adjustable.

[0029] By arranging the strap 5 on the same side of the left ladder post 1 and the right ladder post 2, it is convenient for the operator to carry the insulating ladder by the strap 5. Since the length of the strap 5 is adjustable, it is convenient to adjust the length of the strap 5 according to the needs of the operator, so that the insulating ladder can be fastened to the operator's back. The operator can not only free up his hands to hold other operating tools, but also ensure that the operator can better maintain his balance in the case of complex and difficult-to-walk roads.

[0030] The fixing device includes a front folding fixing piece and a rear folding fixing piece. The front folding fixing piece includes rotating rings installed at both ends of the connecting rod 6. L-shaped rotating rods 8 are respectively installed on the two rotating rings. A connecting plate 10 is installed between the two rotating rods 8. The structure of the rear folding fixing piece is the same as that of the front folding fixing piece. Fixing holes 13 are provided on the connecting plates 10 of the front folding fixing piece and the rear folding fixing piece.

[0031] The rotating ring is rotatably installed on the connecting rod 6. When it is necessary to fix the bottom of the insulating ladder, by opening the front folding fixing piece and the rear folding fixing piece, it is ensured that the rotating rods 8 on the front folding fixing piece and the rear folding fixing piece are in contact with the ground. The connecting plate 10 on the cooperating rotating rods 8 can then be in contact with the ground. When the site where the insulating ladder is to be used is a dirt ground, since the fixing holes 13 are provided on the connecting plate 10, it is convenient for the operator to drive the fixing nails into the ground through the fixing holes 13 to ensure the stability of the front folding fixing piece and the rear folding fixing piece, and avoid the bottom of the insulating ladder from sliding when the operator climbs onto the insulating ladder, causing harm to the operator on the insulating ladder, and improving the safety of the use of this device.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, the rotating rings on the same side of the front folding fixing piece and the rear folding fixing piece are in contact with each other. The rotating rods 8 of the front folding fixing piece and the rear folding fixing piece can be in staggered contact with each other. First threaded holes 9 adapted to each other are provided at the positions where the front folding fixing piece and the rear folding fixing piece are in staggered contact. A limit screw 15 is installed in the first threaded hole 9. Removable anti-slip and wear-resistant layers 14 are installed on the sides of the front folding fixing piece and the rear folding fixing piece that can be in contact with the ground.

[0034] When the ground where the insulating ladder needs to be used is a smooth floor tile or a cement floor, the anti-slip and wear-resistant layer 14 provided on the side surfaces of the rotating rod 8 and the connecting plate 10 that can abut against the ground can increase the friction between the front folding fixing member and the rear folding fixing member and the ground, avoiding the sliding of the bottom of the insulating ladder during the use of the insulating ladder. At the same time, in order to prevent the front folding fixing member and the rear folding fixing member from being turned up due to the gravity of the operator and the insulating ladder during the use by the operator, causing the anti-slip and wear-resistant layer 14 to be unable to effectively contact the ground, by opening a first threaded hole 9 adapted to the rotating top rod of the front folding fixing member and the rear folding fixing member, when the anti-slip and wear-resistant layer 14 abuts against the ground, by installing the limit screw 15 into the first threaded hole 9 of the front folding fixing member and the rear folding fixing member, it can ensure that the anti-slip and wear-resistant layer 14 effectively abuts against the ground, ensuring the stability of the bottom of the insulating ladder when the insulating ladder is in use;

[0035] The detachably provided anti-slip and wear-resistant layer 14 can be replaced in time when it is damaged, and can also be removed when used on the ground to avoid its anti-slip ability being reduced due to being stained with dust.

[0036] Connectors 12 are provided on the side surfaces of the front folding fixing member and the rear folding fixing member away from the anti-slip and wear-resistant layer 14. The connectors 12 on the front folding fixing member and the rear folding fixing member can abut against each other in an interlaced manner. Second threaded holes 11 are opened on the connectors 12 of the front folding fixing member and the rear folding fixing member that can abut against each other in an interlaced manner. The structure and specifications of the second threaded holes 11 are the same as those of the first threaded holes 9.

[0037] When the insulating ladder is used up, by turning up the front folding fixing member and the rear folding fixing member, the connectors 12 on the front folding fixing member and the rear folding fixing member abut against each other in an interlaced manner. At this time, the second threaded holes 11 on the connectors 12 that abut against each other in an interlaced manner can coincide. By installing the limit screw 15 into the second threaded holes 11, it can be avoided that the front folding fixing member and the rear folding fixing member become loose and open when the insulating ladder is moved.

[0038] When the anti-slip and wear-resistant layer 14 of the front folding fixing member and the rear folding fixing member abuts against the ground, the horizontal height of the bottom end of the rotating rod 8 is lower than the horizontal height of the lowest point of the roller 7.

[0039] When the anti-slip and wear-resistant layer 14 abuts against the ground, the roller 7 can be not in contact with the ground, avoiding that when the operator climbs onto the insulating ladder, the anti-slip and wear-resistant layer 14 is compressed, causing the roller 7 to contact the ground and reducing the stability of the device during use. Similarly, when using the insulating ladder on the ground as mentioned in the first embodiment, the horizontal height of the roller 7 is higher than the horizontal height of the lowest end of the rotating rod 8, avoiding the influence of the roller 7 on the stability of the device.

[0040] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes, increases or decreases, or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims described above.

Claims

1. A portable insulating ladder, comprising a left ladder post (1), a right ladder post (2) and a plurality of cross arms (4). The left ladder post (1) and the right ladder post (2) are respectively composed of a plurality of telescopically foldable ladder sections (3) sleeved in sequence. The plurality of cross arms (4) are respectively installed between the corresponding left and right ladder sections (3), and it is characterized in that, A connecting rod (6) is installed at the bottom of the left ladder post (1) and the right ladder post (2). Rollers (7) are arranged at both ends of the connecting rod (6). A foldable fixing device is arranged between the two rollers (7). Straps (5) are installed on both the left ladder post (1) and the right ladder post (2).

2. A portable insulating ladder according to claim 1, characterized in that Limiters for fixing the corresponding ladder sections (3) are respectively arranged at both ends of the cross arm (4). Limit holes adapted to the limiters are respectively arranged at the upper and lower ends of the ladder section (3).

3. A portable insulating ladder according to claim 1, characterized in that, The strap (5) is arranged on the same side of the left ladder post (1) and the right ladder post (2), and the length of the strap (5) is adjustable.

4. A portable insulating ladder according to claim 1, characterized in that, The fixing device includes a front folding fixing piece and a rear folding fixing piece. The front folding fixing piece includes rotating rings installed at both ends of the connecting rod (6). L-shaped rotating rods (8) are respectively installed on the two rotating rings. A connecting plate (10) is installed between the two rotating rods (8). The structure of the rear folding fixing piece is the same as that of the front folding fixing piece. Fixing holes (13) are formed in the connecting plates (10) of both the front folding fixing piece and the rear folding fixing piece.

5. A portable insulating ladder according to claim 4, characterized in that, The rotating rings on the same side of the front folding fixing piece and the rear folding fixing piece are in mutual contact. The rotating rods (8) of the front folding fixing piece and the rear folding fixing piece can be mutually staggered and in contact. First threaded holes (9) adapted to each other are formed at the positions where the front folding fixing piece and the rear folding fixing piece are mutually staggered and in contact. Limit screws (15) are installed in the first threaded holes (9). Removable anti-slip and wear-resistant layers (14) are installed on the sides of the front folding fixing piece and the rear folding fixing piece that can contact the ground.

6. The portable insulating ladder according to claim 5, wherein Connectors (12) are arranged on the sides of the front folding fixing piece and the rear folding fixing piece away from the anti-slip and wear-resistant layers (14). The connectors (12) on the front folding fixing piece and the rear folding fixing piece can be mutually staggered and in contact. Second threaded holes (11) are formed in the connectors (12) of the front folding fixing piece and the rear folding fixing piece that can be mutually staggered and in contact. The structures and specifications of the second threaded holes (11) and the first threaded holes (9) are the same.

7. A portable insulating ladder according to claim 5, characterized in that When the anti-slip and wear-resistant layers (14) of the front folding fixing piece and the rear folding fixing piece are in contact with the ground, the horizontal height of the bottom end of the rotating rod (8) is lower than the horizontal height of the lowest point of the roller (7).

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