Aluminum alloy profile ladder convenient to use

Abstract

The utility model relates to an aluminium alloy profile ladder convenient to use, which comprises a main ladder, an auxiliary ladder and a base, the main ladder is installed on the top of the base, the top of the base is fixedly connected with a supporting seat, the inner side of the supporting seat is fixedly connected with a fixed shaft, the bottom of the main ladder is provided with an installation groove, the installation groove is mutually inserted with the side surface of the fixed shaft, and the front side of the main ladder is provided with a convex groove. A first through hole is formed in the side edge of the main ladder, a first threaded hole is formed in the raised line, a second through hole is formed in the inner side of the main ladder, a hand-screwing bolt is arranged on the side edge of the main ladder, the hand-screwing bolt penetrates through the first through hole to be in threaded connection with the first threaded hole, and the hand-screwing bolt reaches the interior of the second through hole; the inner side of the main ladder is fixedly connected with a main cross beam, the inner side of the auxiliary ladder is fixedly connected with an auxiliary cross beam, and the bottom of the base is fixedly connected with a rubber pad.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy ladders, in particular to an aluminum alloy profile ladder which is convenient to use. Background Art

[0002] In many fields such as home life, construction projects and even industrial production, aluminum alloy ladders have won wide favor with their unique material advantages and excellent performance. This tool, which integrates modern technology and humanized design, not only improves work efficiency, but also provides strong protection for the safety of users. The utility model patent with application number: CN201922106473.0 discloses an aluminum alloy profile ladder, including a base, a hinge seat, a left ladder frame and a right ladder frame arranged on the hinge seat, the top surface of the base is an inclined surface inclined to the right and downward, the hinge seat is welded on the inclined surface, and a plurality of longitudinally arranged tooth plates are welded on the bottom surface of the base. The left ladder frame and the right ladder frame have the same structure. The left ladder frame includes a fixed column and a main climbing rod fixed sequentially from bottom to top, a pin hole is provided in the fixed column, a threaded hole and a blind hole are provided sequentially from top to bottom in the main climbing rod, a step is formed between the blind hole and the threaded hole, a secondary climbing rod is provided in the threaded hole, an external thread is provided on the cylindrical surface of the secondary climbing rod and along the axial direction, the external thread of the secondary climbing rod is threadedly connected with the threaded hole, the lower end of the secondary climbing rod extends into the blind hole, and a limiting plate is welded at the bottom of the extended end, The lower limit plate of the connecting force rests on the step, and the upper end portion of the auxiliary climbing rod extends outside the threaded hole, and a plurality of through holes are opened on the cylindrical surface of the extended end along its axial direction, and a pin shaft is passed through the pin hole on the fixed column of the left ladder frame and the pin hole on the fixed column of the right ladder frame, and the pin shaft is welded in the pin hole, and both ends of the pin shaft are rotatably installed on the hinge seat, and a plurality of main beams are welded between the fixed column of the left ladder frame and the fixed column of the right ladder frame and along the length direction of the fixed column, and a secondary crossbeam is passed through the through hole on the auxiliary climbing rod of the left ladder frame and the through hole on the auxiliary climbing rod of the right ladder frame; the left ladder frame and the right ladder frame are symmetrically arranged; the main climbing rod and the auxiliary climbing rod are both cylindrical, and the main climbing rod and the auxiliary climbing rod are coaxially arranged; the main climbing rod is welded to the top of the fixed column; the spacing between two adjacent main crossbeams is equal; the spacing between two adjacent secondary crossbeams is equal; the diameter of the through hole is equal to the diameter of the secondary crossbeam. After use, the user pulls out all the auxiliary crossbeams from the through holes, and then rotates the auxiliary climbing rod downward, and the auxiliary climbing rod extends into the blind hole under the rotation of the thread, thereby completing the storage of the auxiliary climbing rod. However, the process is cumbersome, the workload is large, and it takes a long time to affect the work efficiency. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned prior art and provides an aluminum alloy profile ladder which is easy to use, can be convenient for carrying and save manpower, convenient for loading and unloading and save time, and can increase the force-bearing area and improve safety.

[0004] The utility model adopts the technical solution to solve its technical problems: the aluminum alloy profile ladder comprises a main ladder, an auxiliary ladder and a base, the main ladder is installed on the top of the base, the top of the base is fixedly connected with a support base, the support base has three, the inner side of the support base is fixedly connected with a fixed shaft, the bottom of the main ladder is provided with a mounting groove, the mounting groove and the side surface of the fixed shaft are plugged into each other, the front side of the main ladder is provided with a convex groove, the side of the auxiliary ladder is fixedly connected with a convex strip, the convex strip is plugged into the convex groove, the side of the main ladder is provided with a first through hole, the inside of the convex strip is provided with a first threaded hole, the inside of the main ladder is provided with a second through hole, the side of the main ladder is provided with a hand screw bolt, the hand screw bolt passes through the first through hole and is threadedly connected with the first threaded hole, the hand screw bolt reaches the inside of the second through hole, the inner side of the main ladder is fixedly connected with a main crossbeam, the inner side of the auxiliary ladder is fixedly connected with the auxiliary crossbeam, the bottom of the base is fixedly connected with a rubber pad, the base and the ladder are carried to the working site as a whole, the base is placed in a corresponding position, the ladder is placed flat on the ground as a whole, the top of the main ladder is pulled out of the auxiliary ladder, the convex strip slides in the convex groove The auxiliary ladder is moved and opened, the ladder is lengthened as a whole, and after the auxiliary ladder is moved and opened to an appropriate length, the first threaded hole corresponds to the first through hole and the second through hole, a hand-tightening bolt is obtained, the hand-tightening bolt passes through the first through hole and is connected with the first threaded hole, the hand-tightening bolt is continued to be tightened, and the hand-tightening bolt reaches the inside of the second through hole, the auxiliary ladder is fixed, the main ladder and the auxiliary ladder are erected, one side of the auxiliary ladder leans on the carrier, the entire ladder is lifted, the mounting groove at the bottom of the main ladder is plugged into the side surface of the fixed shaft, the ladder can be used normally, the base increases the force bearing area, the rubber pad increases the friction force, and provides effective support. When the ladder needs to be retracted, the entire ladder is lifted, the mounting groove at the bottom of the main ladder is separated from the fixed shaft, and the ladder is placed flat on the ground as a whole, the hand-tightening bolt is screwed out, the hand-tightening bolt is separated from the second through hole, the first threaded hole and the first through hole, the auxiliary ladder is held and applied force in the direction of the main ladder, the convex strip slides in the convex groove, the auxiliary ladder is moved and retracted, and the storage of the auxiliary ladder is completed, which is convenient for carrying and saving manpower, convenient for loading and unloading and saving time, and increasing the force bearing area and improving safety.

[0005] For further improvement, the inner wall of the mounting groove is set with an arc, and the side surface of the fixed shaft is close to the arc inner wall of the mounting groove. The contact area between the inner wall of the mounting groove and the side surface of the fixed shaft is increased, which improves the supporting force and reduces mutual wear.

[0006] For further improvement, the bottom of the main ladder, the bottom of the auxiliary ladder and the sides of the base are rounded, and the top of the support seat is chamfered. The rounded and chamfered corners reduce sharp right-angle edges, reduce direct touch injuries to users, and increase comfort during use.

[0007] To further improve, there are multiple first through holes, first threaded holes, second through holes and hand bolts, and the spacing distances between the multiple first threaded holes are equal. The multiple first through holes, multiple first threaded holes, multiple second through holes and multiple hand bolts are convenient for adjusting the length or height of the auxiliary ladder, and the flexibility is improved to meet more practical needs, and the fixing effect of the auxiliary ladder is further increased.

[0008] To be further improved, a third through hole is provided on the front side of the main ladder, the third through hole is connected to the mounting groove, a second threaded hole is provided on the back side of the main ladder, the second threaded hole is connected to the mounting groove, a fixing bolt is provided on the front side of the main ladder, the fixing bolt passes through the third through hole and is threadedly connected to the second threaded hole, the fixing bolt is connected and installed, so that the fixed shaft is locked in the mounting groove, the main ladder is difficult to separate from the top of the base, the stability is enhanced and the safety is improved.

[0009] To further improve, there are two installation grooves and two fixing bolts, and the two fixing bolts fix the left and right sides of the bottom of the main ladder, and the tightness between the main ladder and the base is further enhanced.

[0010] For further improvement, a first anti-slip strip is installed on the top of the main beam, and a second anti-slip strip is installed on the top of the secondary beam. The first anti-slip strip and the second anti-slip strip are made of rubber. The first anti-slip strip and the second anti-slip strip increase the friction of the beam to avoid slipping when the user operates, thereby providing safety protection.

[0011] To be further improved, a first groove is provided on the top of the main crossbeam, a first glue nail is fixedly connected to the bottom of the first anti-slip strip, and the first glue nail is inserted into the first groove; a second groove is provided on the top of the secondary crossbeam, a second glue nail is fixedly connected to the bottom of the second anti-slip strip, and the second glue nail is inserted into the second groove; there are multiple first grooves, multiple first glue nails, multiple second grooves, and multiple second glue nails respectively; the first anti-slip strip is installed using multiple first grooves and multiple first glue nails, and the second anti-slip strip is installed using multiple second grooves and multiple second glue nails; the operation is simple and easy to use.

[0012] The beneficial effects of the utility model are:

[0013] 1. Carry the base and ladder to the work site as a whole, place the base in the corresponding position, and place the ladder flat on the ground. Pull the auxiliary ladder outward from the top of the main ladder, and the convex strip slides in the convex groove, so that the auxiliary ladder is moved and opened. The ladder is lengthened as a whole. After the auxiliary ladder is moved and opened to a suitable length, the first threaded hole corresponds to the first through hole and the second through hole. Get the hand bolt, pass the hand bolt through the first through hole and connect with the first threaded hole, and continue to tighten the hand bolt. The hand bolt reaches the inside of the second through hole, and the auxiliary ladder is fixed. Stand up the main ladder and the auxiliary ladder, and one side of the auxiliary ladder leans against the carrier to lift the entire ladder. The mounting groove at the bottom of the main ladder is inserted into the side surface of the fixed shaft, and the ladder can be used normally. The base increases the force-bearing area, and the rubber pad increases the friction to provide effective support. When the ladder needs to be retracted, lift the entire ladder to separate the mounting groove at the bottom of the main ladder from the fixed shaft. The ladder is placed flat on the ground as a whole, and the hand bolt is screwed out. The hand bolt is disengaged from the second through hole, the first threaded hole and the first through hole. Hold the auxiliary ladder and apply force in the direction of the main ladder. The convex strip slides in the convex groove, and the auxiliary ladder is moved and retracted to complete the storage of the auxiliary ladder, which is convenient for transportation and saves manpower, convenient for loading and unloading and saves time, and increases the force-bearing area to improve safety.

[0014] 2. The main ladder is connected and installed by fixing bolts, so that the fixed axis is locked in the installation groove, and it is difficult for the main ladder to leave the top of the base, the stability is enhanced and the safety is improved. Two fixing bolts fix the left and right sides of the bottom of the main ladder, and the tightness between the main ladder and the base is further enhanced.

[0015] 3. The friction of the beam is increased by the first anti-slip strip and the second anti-slip strip to avoid slipping during operation by the user and provide safety protection. The first anti-slip strip is installed using multiple first grooves and multiple first plastic nails, and the second anti-slip strip is installed using multiple second grooves and multiple second plastic nails. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a diagram showing the installation of the second anti-slip strip of the utility model;

[0019] Figure 4 For the utility model Figure 1 Enlarged view of point B in the middle;

[0020] Figure 5 For the utility model Figure 1 Enlarged view of point C in the middle;

[0021] Figure 6This is a diagram showing the activities of the fixing bolts of the utility model;

[0022] Figure 7 This is a diagram showing the installation of the first anti-slip strip of the utility model;

[0023] Figure 8 This is a top view of the main ladder of the utility model;

[0024] Fig. 9 For the utility model Figure 8 Enlarged view of point D in the middle;

[0025] Fig.10 This is a display diagram of the hand-tightened bolt activity of the utility model.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. main ladder; 2. auxiliary ladder; 3. base; 4. support seat; 5. fixed shaft; 6. mounting groove; 7. convex groove; 8. convex strip; 9. first through hole; 10. first threaded hole; 11. second through hole; 12. hand-tightened bolt; 13. main crossbeam; 14. auxiliary crossbeam; 15. rubber pad; 16. third through hole; 17. second threaded hole; 18. fixing bolt; 19. first anti-slip strip; 20. second anti-slip strip; 21. first groove; 22. first rubber nail; 23. second groove; 24. second rubber nail. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-10 This embodiment is further described:

[0028] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Fig. 9 and Fig.10As shown: In this embodiment, a convenient aluminum alloy ladder comprises a main ladder 1, an auxiliary ladder 2 and a base 3. The main ladder 1 is installed on the top of the base 3. The top of the base 3 is fixedly connected with a support seat 4. There are three support seats 4. A fixed shaft 5 is fixedly connected to the inner side of the support seat 4. A mounting groove 6 is provided at the bottom of the main ladder 1. The mounting groove 6 and the side surface of the fixed shaft 5 are plugged into each other. A convex groove 7 is provided on the front side of the main ladder 1. A convex strip 8 is fixedly connected to the side of the auxiliary ladder 2. The convex strip 8 is plugged into the inside of the convex groove 7. A first through hole 9 is provided on the side of the main ladder 1. A first threaded hole 10 is provided inside the convex strip 8. A second through hole 11 is provided on the inner side of the main ladder 1. A hand-tightened bolt 1 is provided on the side of the main ladder 1. 2, a hand-tightening bolt 12 passes through the first through hole 9 and is threadedly connected to the first threaded hole 10, the hand-tightening bolt 12 reaches the inside of the second through hole 11, a main crossbeam 13 is fixedly connected to the inside of the main ladder 1, a secondary crossbeam 14 is fixedly connected to the inside of the secondary ladder 2, a rubber pad 15 is fixedly connected to the bottom of the base 3, the inner wall of the mounting groove 6 is set in an arc, the side surface of the fixed shaft 5 is close to the arc inner wall of the mounting groove 6, the bottom of the main ladder 1, the bottom of the secondary ladder 2 and the side of the base 3 are rounded, the top of the support seat 4 is cut corners, there are multiple first through holes 9, first threaded holes 10, second through holes 11 and hand-tightening bolts 12, and the spacing distances between the multiple first threaded holes 10 are equal.

[0029] like Figure 5-6 As shown: a third through hole 16 is opened on the front side of the main ladder 1, and the third through hole 16 is connected to the installation groove 6. A second threaded hole 17 is opened on the back side of the main ladder 1, and the second threaded hole 17 is connected to the installation groove 6. A fixing bolt 18 is arranged on the front side of the main ladder 1, and the fixing bolt 18 passes through the third through hole 16 and is threadedly connected with the second threaded hole 17. There are two installation grooves 6, and two fixing bolts 18 are also arranged.

[0030] like Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown: a first anti-slip strip 19 is installed on the top of the main crossbeam 13, and a second anti-slip strip 20 is installed on the top of the secondary crossbeam 14. The first anti-slip strip 19 and the second anti-slip strip 20 are made of rubber. A first groove 21 is opened on the top of the main crossbeam 13, and a first glue nail 22 is fixedly connected to the bottom of the first anti-slip strip 19, and the first glue nail 22 is inserted into the first groove 21. A second groove 23 is opened on the top of the secondary crossbeam 14, and a second glue nail 24 is fixedly connected to the bottom of the second anti-slip strip 20, and the second glue nail 24 is inserted into the second groove 23. There are multiple first grooves 21, first glue nails 22, second grooves 23 and second glue nails 24 respectively.

[0031] When the utility model is in use: the base 3 and the ladder are transported to the work site as a whole, the base 3 is placed in the corresponding position, the ladder as a whole is placed flat on the ground, the top of the main ladder 1 is pulled outward to pull out the auxiliary ladder 2, the convex strip 8 slides in the convex groove 7, the auxiliary ladder 2 is moved and opened, the ladder as a whole is lengthened, and after the auxiliary ladder 2 is moved and opened to a suitable length, the first threaded hole 10 corresponds to the first through hole 9 and the second through hole 11, and the hand-tightening bolt 12 is obtained, the hand-tightening bolt 12 passes through the first through hole 9 and is connected with the first threaded hole 10, and the hand-tightening bolt 12 is continued to be tightened , the hand-tightening bolt 12 reaches the inside of the second through hole 11, and the auxiliary ladder 2 is fixed. Referring to this operation, the connection of multiple hand-tightening bolts 12 is completed to further increase the fixing effect of the auxiliary ladder 2, and multiple first anti-slip strips 19 and second anti-slip strips 20 are obtained. The first anti-slip strips 19 are installed using multiple first grooves 21 and multiple first glue nails 22, and the second anti-slip strips 20 are installed using multiple second grooves 23 and multiple second glue nails 24. The main ladder 1 and the auxiliary ladder 2 are erected, one side of the auxiliary ladder 2 is leaning on the carrier, and the entire ladder is lifted to make the main ladder 1 The mounting groove 6 at the bottom is inserted into the side surface of the fixed shaft 5 to obtain two fixing bolts 18. The two fixing bolts 18 pass through the third through hole 16 and are threadedly connected to the second threaded hole 17, so that the fixed shaft 5 is locked in the mounting groove 6. The main ladder 1 is difficult to separate from the top of the base 3, the stability is enhanced, and the ladder can be used normally. The base 3 increases the force-bearing area, the rubber pad 15 increases the friction force, and provides effective support. The first anti-slip strip 19 and the second anti-slip strip 20 increase the friction force of the beam to avoid slipping when the user operates, providing Safety guarantee: when the ladder needs to be retracted, unscrew the two fixing bolts 18, lift the entire ladder, disengage the mounting groove 6 at the bottom of the main ladder 1 from the fixed shaft 5, and place the ladder flat on the ground as a whole. Unscrew all the hand-tightening bolts 12, and disengage the hand-tightening bolts 12 from the second through hole 11, the first threaded hole 10 and the first through hole 9. Hold the auxiliary ladder 2 and apply force in the direction of the main ladder 1. The convex strip 8 slides in the convex groove 7, and the auxiliary ladder 2 is moved and retracted, completing the storage of the auxiliary ladder 2, which is convenient for carrying and saving manpower, convenient for loading and unloading and saving time, and increases the force-bearing area to improve safety.

[0032] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A convenient-to-use aluminum alloy ladder, comprising a main ladder (1), an auxiliary ladder (2) and a base (3), characterized in that: The main ladder (1) is installed on the top of the base (3), the top of the base (3) is fixedly connected with a support seat (4), there are three support seats (4), the inner side of the support seat (4) is fixedly connected with a fixed shaft (5), the bottom of the main ladder (1) is provided with a mounting groove (6), the mounting groove (6) and the side surface of the fixed shaft (5) are plugged into each other, the front side of the main ladder (1) is provided with a convex groove (7), the side of the auxiliary ladder (2) is fixedly connected with a convex strip (8), the convex strip (8) is plugged into the convex groove (7), and the side of the main ladder (1) is provided with a first through hole (9), A first threaded hole (10) is provided inside the convex strip (8), a second through hole (11) is provided inside the main ladder (1), a hand-tightening bolt (12) is provided on the side of the main ladder (1), the hand-tightening bolt (12) passes through the first through hole (9) and is threadedly connected to the first threaded hole (10), the hand-tightening bolt (12) reaches inside the second through hole (11), a main crossbeam (13) is fixedly connected inside the main ladder (1), a secondary crossbeam (14) is fixedly connected inside the secondary ladder (2), and a rubber pad (15) is fixedly connected to the bottom of the base (3).

2. The convenient-to-use aluminum alloy ladder according to claim 1 is characterized in that: The inner wall of the installation groove (6) is arranged in an arc shape, and the side surface of the fixed shaft (5) is in close contact with the inner wall of the arc shape of the installation groove (6).

3. The convenient-to-use aluminum alloy ladder according to claim 1 is characterized in that: The bottom of the main ladder (1), the bottom of the auxiliary ladder (2) and the sides of the base (3) are rounded, and the top of the support seat (4) is cut.

4. The convenient-to-use aluminum alloy ladder according to claim 1 is characterized in that: There are a plurality of the first through holes (9), the first threaded holes (10), the second through holes (11) and the hand-tightening bolts (12), and the spacing distances between the plurality of first threaded holes (10) are equal.

5. The convenient-to-use aluminum alloy ladder according to claim 1 is characterized by: The main ladder (1) has a third through hole (16) on the front side, the third through hole (16) is connected to the mounting groove (6), the main ladder (1) has a second threaded hole (17) on the back side, the second threaded hole (17) is connected to the mounting groove (6), and the main ladder (1) has a fixing bolt (18) on the front side, the fixing bolt (18) passes through the third through hole (16) and is threadedly connected to the second threaded hole (17).

6. The convenient-to-use aluminum alloy ladder according to claim 5 is characterized by: There are two installation grooves (6) and two fixing bolts (18).

7. The convenient-to-use aluminum alloy ladder according to claim 1 is characterized in that: A first anti-slip strip (19) is installed on the top of the main crossbeam (13), and a second anti-slip strip (20) is installed on the top of the secondary crossbeam (14). The first anti-slip strip (19) and the second anti-slip strip (20) are made of rubber.

8. The convenient-to-use aluminum alloy ladder according to claim 7 is characterized in that: The main cross beam (13) is provided with a first groove (21) at the top, the first anti-slip strip (19) is fixedly connected with a first glue nail (22) at the bottom, the first glue nail (22) is inserted into the first groove (21), the secondary cross beam (14) is provided with a second groove (23) at the top, the second anti-slip strip (20) is fixedly connected with a second glue nail (24) at the bottom, the second glue nail (24) is inserted into the second groove (23), and there are a plurality of the first groove (21), the first glue nail (22), the second groove (23) and the second glue nail (24) respectively.

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