Power construction ladder convenient to carry

Abstract

The utility model belongs to the technical field of electric power construction, and particularly relates to a portable electric power construction ladder which comprises a main ladder and an auxiliary ladder, the auxiliary ladder is connected with the main ladder in a sliding mode, an anchor point is arranged on a top step of the main ladder, a steel wire rope is connected to the anchor point, and a high-position pulley is arranged on one side of the anchor point. A low-position pulley is arranged on a bottom step of the auxiliary ladder, a winding roller is rotationally arranged on the inner wall of a stand column of the main ladder, a gear box is installed on the surface of the outer wall of the main ladder, a worm gear is rotationally arranged in an inner cavity of the gear box, and a worm is in transmission connection with the surface of the worm gear; by rotating the rocker arm, the rocker arm drives the worm gear to rotate through the worm, the worm gear drives the winding roller to wind the steel wire rope through the transmission rod, so that the height of the construction ladder is adjusted, the worm gear and the worm are matched to have a self-locking function, the auxiliary ladder can be automatically locked after the steel wire rope is wound, the safety during use is improved, and the construction ladder is convenient to use. And the convenience in use is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power construction, in particular to a portable electric power construction ladder. Background Art

[0002] Ladders are a tool we often use in our daily lives. They are used for climbing tasks such as changing light bulbs, roof maintenance, interior decoration, etc. Ladders can be divided into telescopic ladders and non-telescopic ladders according to their functions. Telescopic ladders can adjust the height of the ladder, which is very convenient to use and has become the preferred choice.

[0003] The invention patent, currently published with the publication number CN210343199U, discloses a three-section telescopic ladder, including an anti-slip fixture, an outer ladder, a middle ladder, an inner ladder, a first clamping device, and a second clamping device. The outer ladder is embedded with the middle ladder, which in turn is embedded with the inner ladder. The inner ladder is fixed by the first clamping device and the middle ladder limiter, and the middle ladder is fixed by the second clamping device and the outer ladder limiter. The bottom of the outer ladder is equipped with an anti-slip fixture. The advantages of this utility model are: the inner ladder is embedded within the middle ladder, and the middle ladder is embedded within the outer ladder, saving space. When the ladder is retracted, its thickness is the same as the thickness of the outer ladder, requiring less space for transportation and storage. The coordinated arrangement of the inner ladder, the middle ladder, the inner ladder pull rope, the first clamping device, the middle ladder fixed pulley, and the inner ladder movable pulley facilitates the extension of the inner ladder from the middle ladder. There is no need to wait until the ladder is fully extended before erecting the extended ladder, allowing the ladder to be made longer, solving more problems associated with working at height.

[0004] The existing telescopic ladder needs to pull the rope when in use, and the auxiliary ladder is raised with the cooperation of the pulley group. After the auxiliary ladder is raised, the end of the rope needs to be tied to the main ladder. Each adjustment requires the rope to be untied and then tied to the main ladder again after adjustment. It is very inconvenient to use and is prone to danger if the binding is not firm. In order to solve the above problems, the present application proposes a portable power construction ladder. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a portable electric construction ladder to solve the problems raised in the background technology.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a portable electric construction ladder, comprising a main ladder and an auxiliary ladder, wherein the auxiliary ladder is slidably connected to the main ladder, an anchor point is provided on the top step of the main ladder, a steel wire rope is connected to the anchor point, a high-position pulley is provided on one side of the anchor point, a low-position pulley is provided on the bottom step of the auxiliary ladder, and a winding roller is rotatably provided on the inner wall of the column of the main ladder;

[0009] A gear box is installed on the outer wall surface of the main ladder. A worm wheel is rotatably arranged in the inner cavity of the gear box, and a worm is connected to the surface of the worm wheel in a transmission manner.

[0010] Preferably, a guide wheel is installed on the side wall of the column of the main ladder, and the guide wheel is located above the winding roller.

[0011] Preferably, the steel wire rope passes through the low pulley, the high pulley and the guide wheel in sequence and is connected to the winding roller.

[0012] Preferably, a transmission rod is welded to the surface of the worm wheel, and the end of the transmission rod is connected to the winding roller.

[0013] Preferably, the top of the worm passes through the top cavity wall of the gear box, and the top of the worm is fixedly connected to a rocker arm.

[0014] Preferably, a guide slot is provided on the surface of the column of the main ladder, and a guide slide is integrally formed on the surface of the column of the auxiliary ladder, and the guide slide is slidably connected to the guide slot.

[0015] Preferably, the bottom of the column of the main ladder is rotatably connected to a rotating support seat, and the lower surface of the rotating support seat is provided with an anti-slip groove.

[0016] The above technical solution of the present invention has the following beneficial technical effects:

[0017] 1. The utility model rotates the rocker arm, which drives the worm wheel to rotate through the worm, and the worm wheel drives the winding roller through the transmission rod to reel in the wire rope. The high pulley and the low pulley are matched to form a pulley group structure. After the wire rope is reeled in, the auxiliary ladder can be lifted, thereby adjusting the height of the construction ladder. The worm wheel and the worm have a self-locking function, which can automatically lock the auxiliary ladder after the wire rope is reeled in, thereby improving both safety and convenience during use.

[0018] 2. In the present utility model, the bottom of the main ladder contacts the ground through a rotating support seat. By rotating the rotating support seat, the rotating support seat can be better fitted with the ground, thereby increasing the contact area between the main ladder and the ground. In combination with the anti-slip groove, the stability of the main ladder when in use can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a portable electric construction ladder of the utility model;

[0020] Figure 2 This is a schematic diagram of the main ladder structure of a portable electric construction ladder of the utility model;

[0021] Figure 3This is a schematic diagram of the auxiliary ladder structure of a portable electric construction ladder of the present invention;

[0022] Figure 4 The utility model is a schematic diagram of a winding roller driving structure of a portable electric construction ladder.

[0023] Reference numerals:

[0024] 1. Main ladder; 2. Auxiliary ladder; 3. Anchor point; 4. High pulley; 5. Low pulley; 6. Guide wheel; 7. Wire rope; 8. Winding roller; 9. Gearbox; 10. Rocker arm; 11. Guide chute; 12. Guide slide; 13. Worm gear; 14. Drive rod; 15. Worm; 16. Rotating support seat. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0026] like Figure 1-4 As shown, the utility model proposes a portable electric construction ladder, comprising a main ladder 1 and an auxiliary ladder 2, wherein the auxiliary ladder 2 is slidably connected to the main ladder 1, an anchor point 3 is provided on the top step of the main ladder 1, a steel wire rope 7 is connected to the anchor point 3, a high pulley 4 is provided on one side of the anchor point 3, a low pulley 5 is provided on the bottom step of the auxiliary ladder 2, and a winding roller 8 is rotatably provided on the inner wall of the column of the main ladder 1;

[0027] A gear box 9 is installed on the outer wall surface of the main ladder 1. A worm wheel 13 is rotatably provided in the inner cavity of the gear box 9. A worm 15 is connected to the surface of the worm wheel 13 for transmission. A transmission rod 14 is welded to the surface of the worm wheel 13. The end of the transmission rod 14 is connected to the winding roller 8. The top of the worm 15 passes through the top cavity wall of the gear box 9, and the top of the worm 15 is fixedly connected to the rocker arm 10.

[0028] It should be noted that by rotating the rocker arm 10, the rocker arm 10 drives the worm wheel 13 to rotate through the worm 15, and the worm wheel 13 drives the winding roller 8 to reel the wire rope 7 through the transmission rod 14. The high pulley 4 and the low pulley 5 are matched to form a pulley group structure. After the wire rope 7 is reeled in, the auxiliary ladder 2 can be lifted, thereby adjusting the height of the construction ladder. The worm wheel 13 and the worm 15 are matched with a self-locking function, and the auxiliary ladder 2 can be automatically locked after the wire rope 7 is reeled in, which not only improves the safety during use, but also improves the convenience during use.

[0029] In this embodiment, if Figure 1and Figure 2 As shown, a guide wheel 6 is installed on the side wall of the column of the main ladder 1. The guide wheel 6 is located above the winding roller 8. The wire rope 7 passes through the low pulley 5, the high pulley 4 and the guide wheel 6 in sequence and is connected to the winding roller 8.

[0030] It should be noted that the wire rope 7 passes through the low pulley 5, the high pulley 4 and the guide wheel 6 in sequence and is connected to the winding roller 8. The low pulley 5 and the high pulley 4 are matched to form a pulley group structure, which saves effort in lifting the auxiliary ladder 2. The guide wheel 6 can guide the wire rope 7.

[0031] In this embodiment, if Figure 2 and Figure 3 As shown, a guide slot 11 is provided on the column surface of the main ladder 1 , and a guide slide 12 is integrally formed on the column surface of the auxiliary ladder 2 , and the guide slide 12 is slidably connected to the guide slot 11 .

[0032] It should be noted that the guide slide 12 is slidably connected to the guide slot 11 to guide the lifting and lowering of the auxiliary ladder 2.

[0033] In this embodiment, if Figure 1 and Figure 2 As shown, the bottom of the column of the main ladder 1 is rotatably connected to a rotating support seat 16, and the lower surface of the rotating support seat 16 is provided with an anti-slip groove.

[0034] It should be noted that the bottom of the main ladder 1 is in contact with the ground through a rotating support seat 16. By rotating the rotating support seat 16, the rotating support seat 16 can be better fitted with the ground, thereby increasing the contact area between the main ladder 1 and the ground, and combined with the anti-slip groove, the stability of the main ladder 1 during use can be improved.

[0035] The working principle and usage process of the present invention: the bottom of the main ladder 1 contacts the ground through the rotating support seat 16. By rotating the rotating support seat 16, the rotating support seat 16 can be better fitted with the ground, thereby increasing the contact area between the main ladder 1 and the ground, and combined with the anti-slip groove, the stability of the main ladder 1 during use can be improved. By rotating the rocker arm 10, the rocker arm 10 drives the worm gear 13 to rotate through the worm 15, and the worm gear 13 drives the winding roller 8 to wind the wire rope 7 through the transmission rod 14. The high pulley 4 and the low pulley 5 are matched to form a pulley group structure. After winding, the wire rope 7 can lift the auxiliary ladder 2, thereby adjusting the height of the construction ladder. The worm gear 13 and the worm 15 are matched with a self-locking function, which can automatically lock the auxiliary ladder 2 after winding the wire rope 7, which not only improves the safety during use, but also improves the convenience during use.

[0036] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims or their equivalents.

Claims

1. A portable electric construction ladder, comprising a main ladder (1) and an auxiliary ladder (2), wherein the auxiliary ladder (2) is slidably connected to the main ladder (1), characterized in that: The top step of the main ladder (1) is provided with an anchor point (3), a steel wire rope (7) is connected to the anchor point (3), a high-position pulley (4) is provided on one side of the anchor point (3), a low-position pulley (5) is provided on the bottom step of the auxiliary ladder (2), and a winding roller (8) is rotatably provided on the inner wall of the column of the main ladder (1); A gear box (9) is installed on the outer wall surface of the main ladder (1), a worm wheel (13) is rotatably provided in the inner cavity of the gear box (9), and a worm (15) is transmission-connected to the surface of the worm wheel (13).

2. A portable electric construction ladder according to claim 1, characterized in that: A guide wheel (6) is installed on the side wall of the column of the main ladder (1), and the guide wheel (6) is located above the winding roller (8).

3. A portable electric construction ladder according to claim 2, characterized in that: The steel wire rope (7) passes through the low pulley (5), the high pulley (4) and the guide wheel (6) in sequence and is connected to the winding roller (8).

4. A portable electric construction ladder according to claim 3, characterized in that: A transmission rod (14) is welded to the surface of the worm wheel (13), and the end of the transmission rod (14) is connected to the winding roller (8).

5. The portable electric construction ladder according to claim 4, characterized in that: The top of the worm (15) passes through the top cavity wall of the gear box (9), and the top of the worm (15) is fixedly connected to a rocker arm (10).

6. The portable electric construction ladder according to claim 5, characterized in that: A guide slot (11) is provided on the column surface of the main ladder (1), and a guide slide seat (12) is integrally formed on the column surface of the auxiliary ladder (2), wherein the guide slide seat (12) is slidably connected to the guide slot (11).

7. The portable electric construction ladder according to claim 1, characterized in that: The bottom of the column of the main ladder (1) is rotatably connected to a rotating support seat (16), and the lower surface of the rotating support seat (16) is provided with an anti-slip groove.

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