Ladder for house decoration

Abstract

The house decoration ladder comprises a herringbone ladder support, pedals, a storage table, a lifting assembly and a control assembly, the pedals are arranged on the herringbone ladder support at equal intervals, and sliding blocks are arranged on the two sides of each pedal and movably matched in limiting grooves formed in the side faces of the herringbone ladder support. According to the utility model, through the action of the pulley block and the control assembly, the storage table can move along with the up-and-down movement of a worker, manual adjustment is not needed, and the efficiency of decoration operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to house decoration technical field, concretely is a house decoration ladder. BACKGROUND

[0002] The ladder is a tool commonly used when high-altitude operation is needed in the field of house decoration technology. When workers operate on the ladder, they often need to match other handheld tools. However, the general ladder does not have a storage table and other devices. Workers often need to go up and down the ladder to take the required tools, which is very time-consuming and laborious. When going up and down the ladder with heavy handheld tools, there is also a certain risk.

[0003] Therefore, we need a ladder with a storage table to reduce unnecessary time loss caused by repeated going up and down the ladder during decoration work. A technical solution is provided in the publication CN212508035U: In this solution, the ladder is provided with a frame, a sliding groove, a storage table, a limiting rod, a pedal, a groove, a connecting block, a winding wheel, a crank, a positioning block, a transmission shaft, and a limiting pin structure. The positioning part composed of the winding wheel, the crank, the positioning block, and the transmission shaft and the connecting block, the sliding groove, and the groove are used in cooperation with each other. This allows the storage table to move in the direction of the sliding groove. When moving to the required position, the distance between the crank and the winding wheel can be adjusted to fix the crank with the positioning block, so that the winding wheel does not rotate. However, in the above technical solution, the crank is installed at a fixed position. When the worker's position on the ladder is far from the crank, the crank cannot be adjusted. Moreover, during vertical decoration work, workers often need to constantly change the height for operation. When the above solution is used, the crank and the winding wheel need to be adjusted constantly, which undoubtedly reduces the efficiency of decoration work. SUMMARY

[0004] The utility model aims at providing a house decoration ladder to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A house decoration ladder, comprising a ladder stand, a foot pedal, a storage table, a lifting assembly, and a control assembly, the foot pedal is equidistantly arranged on the ladder stand, both sides of the foot pedal are provided with sliding blocks and movably matched in the limiting grooves opened on the side surface of the ladder stand, the storage table is movably matched on the vertical rod inside the ladder stand, wherein:

[0007] The lifting assembly comprises a reversing pulley, an amplifying pulley, a transition pulley, and a pulley rope, the reversing pulley is rotatably installed inside the ladder stand, the amplifying pulley is rotatably installed at the end of the foot pedal, the transition pulley is rotatably installed at the top of the ladder stand, one end of the pulley rope is fixed on the ladder stand, and the other end passes through multiple sets of reversing pulleys and amplifying pulleys and is finally fixed on the storage table through the transition pulley.

[0008] Preferably, the control assembly comprises a fixed frame, an unlocking switch, a self-locking clamp, a self-locking spring, a torsional spring, a pedal return spring, a pull wire, the fixed frame is fixed on the ladder support, the unlocking switch is rotatably installed on the fixed frame and one end is left outside the fixed frame and the other end extends into the fixed frame and is connected with the self-locking clamp through a key, the self-locking spring is arranged between the self-locking clamp and the fixed frame, the torsional spring is sleeved on the unlocking switch and is fixedly connected with the unlocking switch, one end of the pedal return spring is connected with the fixed frame and the other end is connected with the pedal, one end of the pull wire is connected with the unlocking switch and the other end passes through the pedal return spring and is connected with the pedal.

[0009] Preferably, the pedal has a protruding part at two ends matched with the self-locking clamp.

[0010] Preferably, the pedal is at least two, each pedal has an amplification pulley installed at two ends and the number of the amplification pulleys is one-to-one corresponding to the reversing pulleys. Compared with the prior art, the utility model discloses a beneficial effect is: the utility model discloses a pulley block and the action of control assembly, the material placing table can follow the up and down movement of the worker and move, need not manual adjustment, improve the efficiency of the decoration operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole schematic diagram of the utility model;

[0012] Figure 2 It is the lifting assembly schematic diagram of the utility model;

[0013] Figure 3 It is the control assembly schematic diagram of the utility model;

[0014] Figure 4 It is the self-locking fixed frame schematic diagram of the utility model;

[0015] Figure 5 It is the self-locking fixed frame sectional view of the utility model, in the drawing: 1 ladder support, 2 pedal, 3 material placing table, 4 lifting assembly, 5 control assembly, 41 reversing pulley, 42 amplification pulley, 43 transition pulley, 44 pulley rope, 51 fixed frame, 52 unlocking switch, 53 self-locking clamp, 54 self-locking spring, 55 torsional spring, 56 pedal return spring, 57 pull wire. DETAILED DESCRIPTION

[0016] 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] Embodiment:

[0018] Please refer to Figures 1 to 5 The utility model provides a technical scheme:

[0019] A house decoration ladder, including herringbone ladder support 1, footboard 2, article table 3, lifting assembly 4 and control assembly 5. Herringbone ladder support 1 is equipped with footboard 2 at equal intervals, both sides of footboard 2 are equipped with sliding block and are movably matched in the limiting slot of the side of herringbone ladder support 1, footboard 2 can slide in the limiting slot under the action of external force, when footboard 2 moves to the bottom of limiting slot, then cannot continue to move down, article table 3 is movably matched on the vertical rod of the inner side of herringbone ladder support 1, and then article table 3 forms moving pair in vertical direction and can be lifted.

[0020] Further, lifting assembly 4 includes reversing pulley 41, amplification pulley 42, transition pulley 43 and pulley rope 44, reversing pulley 41 is rotatably installed in herringbone ladder support 1, amplification pulley 42 is rotatably installed at the end of footboard 2, transition pulley 43 is rotatably installed at the top of herringbone ladder support 1, pulley rope 44 one end is fixed on herringbone ladder support 1, and the other end passes through multiple reversing pulleys 41 and amplification pulleys 42, and is finally fixed on article table 3 through transition pulley 43, when people stand on footboard 2, gravity drives footboard 2 to move down, and force is transmitted to article table 3 through pulley rope 44 connected on footboard 2 and pulley rope 44 passing through the pulley, and article table is pulled up. Counterweight can be added on footboard 2, and gravity effect is increased, amplification pulley 42 is a movable pulley, and gravity is applied on amplification pulley 42, therefore, the moving distance of article table 3 is twice the moving distance of amplification pulley 42, the length of limiting slot on herringbone ladder support 1 can be controlled to control the distance of article table ascending every step.

[0021] As a preferred embodiment, the control assembly 5 comprises a fixed frame 51, an unlocking switch 52, a self-locking clamp 53, a self-locking spring 54, a torsional spring 55, a pedal return spring 56, and a pull wire 57. The fixed frame 51 is fixed on the ladder stand 1, the unlocking switch 52 is rotatably installed on the fixed frame 51 with one end outside the fixed frame 51 and the other end extending into the fixed frame 51 and connected with the self-locking clamp 53 through a key, so that the unlocking switch 52 and the self-locking clamp 53 are fixed in the circumferential direction and cannot rotate relative to each other. The self-locking spring 54 is arranged between the self-locking clamp 53 and the fixed frame 51, and under the action of the spring force, the self-locking clamp 53 remains in position without external force and returns to the initial position when the external force disappears. The torsional spring 55 is sleeved on the unlocking switch 52 and fixedly connected with the unlocking switch 52, so that the unlocking switch 52 can rotate relative to the fixed frame 51 under the action of external force and return to the initial position when the external force disappears. One end of the pedal return spring 56 is connected with the fixed frame 51, and the other end is connected with the pedal 2. One end of the pull wire 57 is connected with the unlocking switch 52, and the other end passes through the pedal return spring 56 and is connected with the pedal 2. When the pedal 2 moves downward by a certain distance, the pull wire 57 can be pulled tight and then pull the unlocking switch 52, so that the unlocking switch 52 and the self-locking clamp 53 fixed in the circumferential direction of the unlocking switch 52 rotate.

[0022] As a preferred embodiment, the pedal 2 has a protruding part at both ends matched with the self-locking clamp 53. When the pedal 2 moves downward to the locking position of the limiting groove of the ladder stand 1 under the action of gravity, the self-locking clamp 53 is locked with the protruding part of the pedal 2, so that the pedal 2 and the pedestal 3 do not automatically rebound when the person leaves the pedal. At the same time, the pedal 2 can continue to move downward under the action of gravity at the locking position of the protruding part on the pedal 2 and the self-locking clamp 53. The distance can make the pedal 2 pull the pull wire 57 and then pull the unlocking switch 52 and the self-locking clamp 53, so that the locking state is released, and the pedal 2 returns to the initial position under the action of the pedal return spring 56, and the pedestal 3 moves downward.

[0023] As a preferred embodiment, the pedal 2 is at least two, and each pedal 2 is provided with an amplification pulley 42 at both ends, and the number of the amplification pulleys 42 corresponds to the reversing pulleys 41 one by one. When the pedal 2 drives the pulleys of a certain level to move downward, all the pulleys except the pulleys of the level remain stationary as the fixed pulleys. Therefore, in the whole mechanism, when the pedal 2 moves a distance, the pedestal 3 will be lifted twice the distance. When the distance that the pedal 2 moves in the limiting groove of the ladder stand 1 is half the distance between the adjacent pedals 2, the pedal 2 of each level can be implemented, and the pedestal 3 will be lifted by the distance between the adjacent pedals 2. At the same time, by setting the initial height of the pedestal 3, the pedestal 3 can always be kept at the relative height of the construction personnel, which is suitable for different heights of people and the needs of construction personnel for different heights.

[0024] The utility model discloses a use principle: when the construction personnel go up footboard 2, footboard 2 slides along the limiting groove on the herringbone ladder support 1, and when sliding to the locking position of the limiting groove on the herringbone ladder support 1, still slide a small distance until footboard 2 is attached to the edge of the limiting groove, at this time, footboard 2 drives the both sides enlarging pulley 42 to also shift a distance, because the pulley rope 44 one end is fixed on the herringbone ladder support 1, therefore enlarging pulley 42 shifts and pulls the pulley rope 44 to pass through the reversing pulley 41 and the transition pulley 43 and makes the article placing table fixed on the other end of pulley rope 44 to shift, and the shifting distance is twice of the shifting distance of enlarging pulley 42.When the construction personnel continue to climb one level footboard 2, the lower footboard 2 bounces a small distance under the action of the pedal return spring 56 until the self-locking clamp 53 and the convex part on footboard 2 are locked, and then make the upper footboard 2 not bounce to the initial position, and the article placing table 3 can ascend with the climbing of the construction personnel.

[0025] When the construction personnel go down the ladder, when stepping on the lower footboard 2, the footboard 2 will slide a small distance in the limiting groove on the herringbone ladder support 1 under the action of gravity until attaching to the edge of the limiting groove, and this small distance will make footboard 2 pull the pull line 57 connected with it, and then pull the unlocking switch 52 to make the unlocking switch 52 and the self-locking clamp 53 fixed on the unlocking switch 52 rotate, release the locking state of the self-locking clamp 53 on the upper footboard 2 and the convex part on footboard 2, and then make the upper footboard 2 return to the initial position under the action of the pedal return spring 56, and the article placing table 3 drops to the height of the lower footboard 2, realizing that the article placing table 3 drops with the descending of the construction personnel. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A house renovation ladder, comprising an A-frame ladder support (1), footrests (2), a platform (3), a lifting assembly (4), and a control assembly (5), wherein footrests (2) are equidistantly arranged on the A-frame ladder support (1), and each footrest (2) has a slider on both sides that is movably fitted into a limiting groove on the side of the A-frame ladder support (1), and the platform (3) is movably fitted onto the upright on the inner side of the A-frame ladder support (1), characterized in that: The lifting assembly (4) includes a reversing pulley (41), an amplifying pulley (42), a transition pulley (43), and a pulley rope (44). The reversing pulley (41) is rotatably installed inside the A-frame ladder support (1). The amplifying pulley (42) is rotatably installed at the end of the foot pedal (2). The transition pulley (43) is rotatably installed at the top of the A-frame ladder support (1). One end of the pulley rope (44) is fixed to the A-frame ladder support (1), and the other end passes around multiple sets of reversing pulleys (41) and amplifying pulleys (42), and finally passes through the transition pulley (43) and is fixed to the shelf (3).

2. The ladder for home renovation according to claim 1, characterized in that: The control component (5) includes a fixed frame (51), an unlocking switch (52), a self-locking clip (53), a self-locking spring (54), a torsion spring (55), a pedal return spring (56), and a pull cable (57). The fixed frame (51) is fixed on the A-frame ladder support (1). The unlocking switch (52) is rotatably mounted on the fixed frame (51), with one end remaining outside the fixed frame (51) and the other end extending into the fixed frame (51) and connecting with the self-locking clip (53). A self-locking spring (54) is provided between the self-locking clip (53) and the fixing bracket (51) in a flat key connection. The torsion spring (55) is sleeved on the unlocking switch (52) and fixedly connected to the unlocking switch (52). One end of the pedal return spring (56) is connected to the fixing bracket (51) and the other end is connected to the foot pedal (2). One end of the pull wire (57) is connected to the unlocking switch (52) and the other end passes through the pedal return spring (56) and is connected to the foot pedal (2).

3. A house renovation ladder according to claim 2, characterized in that: The foot pedal (2) has protrusions at both ends that engage with the self-locking clips (53).

4. A house renovation ladder according to claim 1, characterized in that: There are at least two foot pedals (2), each foot pedal is equipped with a magnifying pulley (42) at both ends, and the number of magnifying pulleys (42) corresponds one-to-one with the reversing pulley (41).

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