Building construction ladder with portable structure

Abstract

The utility model relates to the field of construction tools, in particular to a building construction ladder with a portable structure, which comprises a side rod, an angle scale mounted on the side rod and used for adapting to the gradient of a building, a rotating drum convenient for mounting and dismounting the ladder, and a pedal used for bearing, the angle scale comprises a clamping plate for fixing the pedal, a pressing plate serving as a movable switch of the clamping plate, an arc groove for guiding rotation of the pedal and a threaded rod for rapidly mounting and dismounting the angle scale, the side rods are arranged on the two sides of the pedal in pairs and rotationally connected with one end of the pedal, and the angle scale is perpendicularly mounted on the side rods and slidably connected with the other end of the pedal. The pedals and the side rods on the two sides are vertically arrayed to form the construction ladder, and the rotary drum is arranged at the joint of the two side rods on the same side of the pedals. The angle of the pedal is adjusted through the angle scale, so that the pedal can be always horizontal to the ground, the length of the ladder can be finely adjusted at a small angle as required through the splicing of the rotary drum to the side rods, and the stability of the construction ladder is ensured through the fixation of the clamping plate and the pressing plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of construction tools, in particular to a portable structure's building construction ladder. BACKGROUND

[0002] In the construction operation, the pouring of the stairwell needs to be placed at the last of the construction process to avoid the damage of the transportation tool materials to the stairwell, in order to facilitate the quick movement of the staff between different floors, the construction ladder is usually erected in the stairwell to replace the un-poured stair, and the traditional construction ladder is difficult to pass through the stairwell entrance due to the volume and weight, so a portable structure's construction ladder is needed to be brought into the stairwell for on-site installation and disassembly to meet the needs.

[0003] Chinese patent document CN101761245A discloses an assembled portable ladder for building construction operation floor, which comprises a pedal skeleton, a pedal, a side beam, and a cross beam, and the pedal skeleton, the pedal, the side beam, and the cross beam are connected at the head and tail to form a stair unit; the lower part, the middle part, and the upper part of the side beam of the stair unit are respectively provided with a lower joint, a middle joint, and an upper joint, and the middle joint and the upper joint are provided with a hole for installing a bolt; the side beam is located between the lower joint and the middle joint or / and the middle joint and the upper joint, and an adjustable movable joint is arranged at the position, and a hole for installing a bolt is arranged on the movable joint; the bolt is in an L-shaped structure; and the stair units are connected at the head and tail to be assembled by using bolts. The scheme has simple and reasonable structure, and is convenient to disassemble and assemble. It is suitable for the use of cast-in-place stair construction site in the building industry.

[0004] The above scheme still has several improvement points: the angle of the pedal is fixed, which cannot guarantee that it is horizontal to the ground in different buildings; and the length of the ladder can only be adjusted by splicing new pedals for large-scale changes, which is not convenient for fine adjustment. UTILITY MODEL CONTENTS

[0005] In order to solve the problems in the prior art, the utility model provides a portable structure's building construction ladder, which comprises side rods, an angle disc for adapting to the gradient of the building and installed on the side rods, a rotating drum for conveniently installing and dismounting the ladder, and a pedal for bearing, the angle disc comprises a clamping plate for fixing the pedal, a pressing plate serving as a movable switch of the clamping plate, an arc groove for providing a guide for the rotation of the pedal, and a threaded rod for quickly installing and dismounting the angle disc, the side rods are arranged in pairs on both sides of the pedal and are rotationally connected to one end of the pedal, the angle disc is vertically installed on the side rods and is slidably connected to the other end of the pedal, the pedal and the side rods on both sides are vertically arranged to form the construction ladder, the rotating drum is arranged at the connection between the two side rods on the same side of the pedal, the clamping plate is arranged in the angle disc, the pressing plate is connected to the clamping plate through the side wall of the angle disc, the arc groove is arranged on the side of the angle disc, and the threaded rod is installed at the bottom of the angle disc and in the side rod.

[0006] Preferably, the clamping plate comprises a hollow groove, an expansion rod and a clamping tooth, the hollow groove is arranged on the arc surface of the angle disc and communicates with the arc groove, the expansion rod is arranged on the side surface of the clamping plate and is located in the hollow groove, and the clamping tooth is installed on the arc surface of the clamping plate and is perpendicular to the expansion rod.

[0007] Preferably, the expansion rod comprises a side hole and a spring, the side hole is arranged on the inner wall of the angle disc and is located in the hollow groove, and the spring is installed in the side hole and surrounds the outer side of the expansion rod.

[0008] Preferably, the pressing plate comprises a through hole, a push rod and a texture, the through hole is arranged on the side surface of the angle disc, the push rod passes through the through hole to connect the pressing plate and the clamping plate, and the texture is arranged on the surface of the pressing plate.

[0009] Preferably, the threaded rod comprises a mounting hole, a nut and a clamping wall, the mounting hole is arranged on the side rod, the threaded rod passes through the mounting hole from the upper surface of the side rod to be embedded with the nut, the nut is attached to the lower surface of the side rod, and the clamping wall is installed at the bottom of the angle disc and is located beside the threaded rod.

[0010] Preferably, the rotating drum comprises a sleeve, a rotating rod, a rotating hole and a threaded segment, the rotating rod passes through the rotating drum, the sleeve is installed at both ends of the rotating rod and is embedded with the port of the side rod, the rotating hole is arranged at the center of the sleeve, and the threaded segment is arranged at the two rod openings of the rotating rod.

[0011] Preferably, the sleeve comprises a latch, a boss and a positioning hole, the boss is installed on the side surface of the sleeve, the positioning hole is arranged in the boss, and the latch is installed in the positioning hole.

[0012] Preferably, the pedal comprises a rotating shaft, a knob, a clamping shaft and an anti-skid pattern, the rotating shaft is arranged at one end of the pedal and passes through the side rod, the knob is installed at the top of the rotating shaft, the clamping shaft is arranged at the other end of the pedal, and the anti-skid pattern is arranged on the surface of the pedal.

[0013] The beneficial effects of the utility model compared with prior art are:

[0014] 1. The utility model discloses a pedal angle adjusting device, which comprises a ladder, an angle disc, a clamping plate, a pressing plate, a threaded rod, a rotating drum and a pedal, the angle disc is arranged on the top of the ladder and is connected with the clamping plate, the clamping plate is connected with the pressing plate, the threaded rod is arranged on the bottom of the angle disc and is connected with the rotating drum, and the pedal is arranged on the top of the angle disc and is connected with the clamping plate.

[0015] 2. The utility model discloses a pedal angle adjusting device, which comprises a ladder, an angle disc, a clamping plate, a pressing plate, a threaded rod, a rotating drum and a pedal, the angle disc is arranged on the top of the ladder and is connected with the clamping plate, the clamping plate is connected with the pressing plate, the threaded rod is arranged on the bottom of the angle disc and is connected with the rotating drum, and the pedal is arranged on the top of the angle disc and is connected with the clamping plate.

[0016] 3. The utility model discloses a fixing of card board and pressing plate guarantees the stability of construction ladder, specifically, the empty groove provides the activity space for card board, telescopic link is used for fixing card board and removes the removal constraint of card board, and the pawl is used for fixing the pedal. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a kind of portable structure's building construction ladder's solid Figure 1 .

[0018] Figure 2 It is a kind of portable structure's building construction ladder's solid Figure 2 .

[0019] Figure 3 It is a kind of portable structure's building construction ladder's solid.

[0020] Figure 4 It is a kind of portable structure's building construction ladder's solid.

[0021] Figure 5 It is a kind of portable structure's building construction ladder's solid.

[0022] Figure 6 It is a kind of portable structure's building construction ladder's solid.

[0023] The figure mark is: 1, side pole;2, angle disc;3, card board;31, empty groove;32, telescopic link;321, side hole;322, spring;33, pawl;4, pressing plate;41, through hole;42, push rod;43, grain;5, arc groove;6, threaded rod;61, mounting hole;62, nut;63, clamping wall;7, rotating drum;71, casing;711, bolt;712, boss;713, positioning hole;72, rotating rod;73, rotating hole;74, threaded section;8, pedal;81, rotating shaft;82, knob;83, clamping shaft;84, non-slip grain. DETAILED DESCRIPTION

[0024] In order to further understand the characteristics, technical means and the specific purpose reached of the utility model, function of the utility model, the utility model is further described in detail in the following with specific embodiment and accompanying drawing.

[0025] See Figures 1-6As shown in the figure, a portable construction ladder comprises side poles 1, an angle disc 2 for adapting the gradient of the ladder, a rotating drum 7 for facilitating the installation and removal of the ladder, and a step 8 for bearing weight. The angle disc 2 comprises a clamping plate 3 for fixing the step 8, a pressing plate 4 as a movable switch of the clamping plate 3, an arc groove 5 for guiding the rotation of the step 8, and a threaded rod 6 for quick installation and removal of the angle disc 2. The side poles 1 are arranged in pairs on both sides of the step 8 and are rotatably connected to one end of the step 8. The angle disc 2 is vertically installed on the side poles 1 and is slidably connected to the other end of the step 8. The step 8, together with the side poles 1 on both sides, forms a vertical array of the construction ladder. The rotating drum 7 is arranged at the connection of the two side poles 1 on the same side of the step 8. The clamping plate 3 is arranged in the angle disc 2. The pressing plate 4 is connected to the clamping plate 3 through the side wall of the angle disc 2. The arc groove 5 is arranged on the side of the angle disc 2. The threaded rod 6 is installed at the bottom of the angle disc 2 and is located in the side poles 1.

[0026] The construction ladder determines the overall length of the ladder by continuously connecting the side poles 1 through the rotating drum 7, which is suitable for various ladder lengths in construction. At the same time, the angle disc 2 is used to adjust the rotation angle of the step 8, so that the plane of the step 8 is adapted to the gradient of various buildings while maintaining horizontal with the ground. When using the construction ladder, the pressing plate is first squeezed to release the fixation of the step 8 by the clamping plate 3, and the step 8 is rotated along the arc groove 5 on the angle disc 2 according to the overall inclination angle of the ladder. When the step 8 is horizontal, the pressing plate 4 is released, and the clamping plate 3 re-fixes the step 8. The threaded rod 6 is used to facilitate the installation and removal of the angle disc 2 while reinforcing the connection between the angle disc 2 and the side poles 1.

[0027] Referring to Figures 1-4 As shown in the figure, the clamping plate 3 comprises an empty slot 31, an extension rod 32, and a clamping tooth 33. The empty slot 31 is arranged on the arc surface of the angle disc 2 and is in communication with the arc groove 5. The extension rod 32 is arranged on the side of the clamping plate 3 and is located in the empty slot 31. The clamping tooth 33 is installed on the arc surface of the clamping plate 3 and is perpendicular to the extension rod 32.

[0028] The empty slot 31 provides a movable space for the clamping plate 3. The extension rod 32 is used to fix the clamping plate 3 and release the movement constraint of the clamping plate 3. The clamping tooth 33 is used to fix the step 8. When the clamping plate 3 is squeezed by the pressing plate 4, the connection between the clamping tooth 33 and the step 8 is disconnected, and at this time the step 8 can rotate freely. When the pressing plate 4 is released, the clamping tooth 33 is reconnected to the step 8, and at this time the angle of the step 8 is fixed.

[0029] Referring to Figure 3 and Figure 4 As shown in the figure, the extension rod 32 comprises a side hole 321 and a spring 322. The side hole 321 is arranged on the inner wall of the angle disc 2 and is located in the empty slot 31. The spring 322 is installed in the side hole 321 and surrounds the outside of the extension rod 32.

[0030] The side hole 321 is used to increase the moving space of the clamping plate 3 in the empty groove 31, avoiding the length of the telescopic rod 32 to hinder the movement of the clamping plate 3, and the spring 322 provides the reset ability for the clamping plate 3, so that when the pressing plate 4 is loosened, the clamping plate 3 can be automatically reset under the action of the spring 322, ensuring the reconnection of the clamping tooth 33 and the pedal 8.

[0031] Referring to Figure 4 As shown, the pressing plate 4 includes a through hole 41, a push rod 42 and a texture 43, the through hole 41 is arranged on the side of the angle disc 2, the push rod 42 passes through the through hole 41 to connect the pressing plate 4 and the clamping plate 3, and the texture 43 is arranged on the surface of the pressing plate 4.

[0032] The through hole 41 provides positioning and guidance for the movement of the push rod 42, and the texture 43 is used to facilitate manual pressing of the pressing plate 4. When the pressing plate 4 is not stressed, the clamping plate 3 is connected with the pedal 8 in the empty groove 31, and when the pressing plate 4 is pressed, the push rod 42 pushes the clamping plate 3 along the direction of the telescopic rod 32.

[0033] Referring to Figures 2-4 As shown, the threaded rod 6 includes a mounting hole 61, a nut 62 and a clamping wall 63, the mounting hole 61 is arranged on the side rod 1, the threaded rod 6 passes through the mounting hole 61 from the upper surface of the side rod 1 to be embedded with the nut 62, and the nut 62 is in close contact with the lower surface of the side rod 1, and the clamping wall 63 is installed at the bottom of the angle disc 2 and beside the threaded rod 6.

[0034] The mounting hole 61 is used to provide positioning for the installation of the threaded rod 6, and through the embedded connection of the nut 62 and the threaded rod 6, the angle disc 2 can be quickly installed, disassembled, removed and transported on the side rod 1. Since the angle disc 2 is perpendicular to the side rod 1, excessive space area affects the portability of the construction ladder, which can be quickly disassembled for transportation.

[0035] Referring to Figures 1-5 As shown, the rotating drum 7 includes a sleeve 71, a rotating rod 72, a rotating hole 73 and a threaded segment 74, the rotating rod 72 passes through the rotating drum 7, the sleeve 71 is installed at both ends of the rotating rod 72 and is embedded with the port of the side rod 1, the rotating hole 73 is arranged at the center of the sleeve 71, and the threaded segment 74 is arranged at the two rod openings of the rotating rod 72.

[0036] The sleeve 71 is used to connect the port of the side rod 1, the rotating hole 73 is used to install the rotating rod 72, the rotating rod 72 is used to adjust the distance between the two pedals 8, so that the construction ladder can correspond to the distance of the stairs inside the building, and the threaded segment 74 is arranged on the rotating rod 72 on both sides of the rotating drum 7, so that rotating the rotating drum 7 can synchronously lengthen or shorten the distance between the two side rods 1.

[0037] Referring to Figure 5As shown in the figure, the sleeve 71 comprises a plug 711, a boss 712 and a positioning hole 713, the boss 712 is installed on the side of the sleeve 71, the positioning hole 713 is arranged in the boss 712, and the plug 711 is installed in the positioning hole 713.

[0038] Since the rotating drum 7 will rotate according to the stress of the construction ladder, thereby affecting the stable distance between the two pedals 8, the plug 711 is inserted into the positioning hole 713 on the boss 712 to fix the rotating drum 72, thereby ensuring the fixation of the rotating drum 7 and the stability of the distance between the pedals 8.

[0039] Referring to Figures 1-6 As shown in the figure, the pedal 8 comprises a rotating shaft 81, a knob 82, a clamping shaft 83 and a non-slip pattern 84, the rotating shaft 81 is arranged at one end of the pedal 8 and penetrates through the side rod 1, the knob 82 is installed on the top of the rotating shaft 81, the clamping shaft 83 is arranged at the other end of the pedal 8, and the non-slip pattern 84 is arranged on the surface of the pedal 8.

[0040] The rotating shaft 81 serves as the rotation center of the pedal 8, the knob 82 is used for facilitating the installation and dismounting of the pedal 8, thereby improving the portability of the whole construction ladder, the clamping shaft 83 is clamped with the clamping tooth 33 on the angle disc 2, thereby fixing the rotating angle of the pedal 8, and the non-slip pattern 84 is used for increasing the friction force of the surface of the pedal 8, thereby avoiding safety accidents.

[0041] The above embodiments only express one or several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A portable construction ladder, comprising side poles (1) and an angle disc (2) mounted on the side poles (1) for adapting the angle of the ladder, a rotating drum (7) for facilitating the installation and removal of the ladder and a step (8) for bearing weight; characterized in that The angle disc (2) comprises a clamping plate (3) for fixing the step (8), a pressing plate (4) for opening and closing the clamping plate (3), an arc slot (5) for guiding the rotation of the step (8) and a threaded rod (6) for quickly installing and removing the angle disc (2), the side poles (1) are arranged in pairs on both sides of the step (8) and are rotatably connected to one end of the step (8), the angle disc (2) is vertically mounted on the side poles (1) and is slidably connected to the other end of the step (8), the step (8) together with the side poles (1) on both sides forms a vertical array of the construction ladder, the rotating drum (7) is arranged at the connection of the two side poles (1) on the same side of the step (8), the clamping plate (3) is arranged in the angle disc (2), the pressing plate (4) is connected to the clamping plate (3) through the side wall of the angle disc (2), the arc slot (5) is arranged on the side of the angle disc (2), and the threaded rod (6) is mounted at the bottom of the angle disc (2) and in the side pole (1).

2. A portable construction ladder according to claim 1, wherein The clamping plate (3) comprises a hollow slot (31), an extension rod (32) and a clamping tooth (33), the hollow slot (31) is arranged on the arc surface of the angle disc (2) and communicates with the arc slot (5), the extension rod (32) is arranged on the side of the clamping plate (3) and in the hollow slot (31), and the clamping tooth (33) is mounted on the arc surface of the clamping plate (3) and is perpendicular to the extension rod (32).

3. A portable construction ladder according to claim 2, wherein The extension rod (32) comprises a side hole (321) and a spring (322), the side hole (321) is arranged on the inner wall of the angle disc (2) and in the hollow slot (31), and the spring (322) is mounted in the side hole (321) and surrounds the outside of the extension rod (32).

4. A portable construction ladder of claim 1 wherein, The pressing plate (4) comprises a through hole (41), a push rod (42) and a thread (43), the through hole (41) is arranged on the side of the angle disc (2), the push rod (42) connects the pressing plate (4) and the clamping plate (3) through the through hole (41), and the thread (43) is arranged on the surface of the pressing plate (4).

5. A portable construction ladder of claim 1 wherein, The threaded rod (6) comprises a mounting hole (61), a nut (62) and a clamping wall (63), the mounting hole (61) is arranged on the side pole (1), the threaded rod (6) passes through the mounting hole (61) from the upper surface of the side pole (1) to be embedded with the nut (62), meanwhile, the nut (62) is attached to the lower surface of the side pole (1), and the clamping wall (63) is mounted at the bottom of the angle disc (2) and beside the threaded rod (6).

6. A portable construction ladder of claim 1 wherein, The rotating drum (7) comprises a sleeve (71), a rotating rod (72), a rotating hole (73) and a threaded segment (74), the rotating rod (72) passes through the rotating drum (7), the sleeve (71) is mounted at both ends of the rotating rod (72) and is embedded with the port of the side pole (1), the rotating hole (73) is arranged at the center of the sleeve (71), and the threaded segment (74) is arranged at the two rod openings of the rotating rod (72).

7. A portable construction ladder according to claim 6, wherein The sleeve (71) comprises a latch (711), a boss (712) and a positioning hole (713), the boss (712) is installed on the side of the sleeve (71), the positioning hole (713) is arranged in the boss (712), and the latch (711) is installed in the positioning hole (713).

8. A portable construction ladder of claim 1 wherein, The pedal (8) comprises a rotating shaft (81), a knob (82), a clamping shaft (83) and a non-slip pattern (84), the rotating shaft (81) is arranged at one end of the pedal (8) and penetrates through the side rod (1), the knob (82) is installed at the top of the rotating shaft (81), the clamping shaft (83) is arranged at the other end of the pedal (8), and the non-slip pattern (84) is arranged on the surface of the pedal (8).

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