Novel electric attic extension ladder

Abstract

The utility model discloses a novel electric attic extension ladder, and relates to the technical field of extension ladders. The utility model comprises a frame and a pedal embedded on the frame, a plate groove is formed in the frame, the frame is matched with a pedal through the plate groove, springs are installed at the bottoms of the left side and the right side of the pedal, the pedal is connected with an abutting plate through the springs, the abutting plate extends into the bottom groove of the frame, handrail rods are further installed at the left end and the right end of the frame, and a telescopic assembly is further installed on the upper side wall of the frame. The frame is connected with the bottom side wall of the other frame through a telescopic assembly, the telescopic assembly comprises a connecting plate and a limiting plate inserted into the connecting plate in a sliding mode, and the limiting plate is connected with the connecting plate through a three-axis electric rod. The pedal can be conveniently taken out of the frame to be replaced through the spring and the abutting plate, the handrail rods on the two sides of the pedal can provide the handrail effect when the pedal is treaded on the handrail rods, and the telescopic assemblies on the two sides of the pedal are electrically driven and can automatically stretch out or retract back.

Description

Technical Field

[0001] The utility model belongs to the technical field of telescopic ladders, in particular to a novel electric attic telescopic ladder. Background Art

[0002] The attic is located at the top of the house, and entering the attic from the house requires stairs. The above-mentioned stairs can be divided into metal stairs, wooden stairs and concrete stairs according to their materials. At present, the most common stairs suitable for attics are telescopic stairs. The telescopic stairs can be extended to step on the pedals when in use, and can be directly folded and retracted when not in use.

[0003] A Chinese patent application (or patent) with publication number CN219973740U discloses a telescopic loft ladder with replaceable pedals, which relates to the technical field of telescopic ladders, and includes a mounting frame, a support frame is provided on the mounting frame, a pedal is provided on the support frame, a connecting assembly is provided between the pedal and the support frame, and the support frame and the pedal are arranged at intervals in the vertical direction, and a movable plate is provided between the plurality of support frames, and the movable plate is rotatably connected to the support frame. The application installs the pedal on the support frame through the connecting assembly, which not only ensures the overall stability of the loft ladder, but also improves the convenience of replacing a single pedal, and does not need to replace the entire loft ladder.

[0004] The above-mentioned telescopic loft ladder with replaceable pedals is a manual traction structure. In order to ensure the stability of the stairs during use, the connections between the various components are extremely tight. Therefore, the force required for traction, stretching, squeezing and contraction of the stairs is very large, which is inconvenient to use. In addition, the stairs have no handrails or protective structures, and there are certain safety issues when stepping on them. To this end, we provide a new type of electric telescopic loft ladder to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a novel electric telescopic attic ladder, which makes it easy to take out the pedal from the frame by using springs and abutment plates, which is beneficial to the replacement of the pedal, and the handrails on both sides can provide the effect of handrails when stepping on them, making the stepping process safer and more stable, and the telescopic components on both sides of the pedal are electrically driven and can be automatically extended or retracted, thereby solving the problems of the existing telescopic attic ladder with replaceable pedals.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a novel electric attic telescopic ladder, comprising a frame and a pedal embedded thereon; a plate groove is opened on the frame, and the frame cooperates with the pedal through the plate groove, springs are installed at the bottom of the left and right sides of the pedal, and the pedal is connected to an abutment plate through the spring, and the abutment plate extends into the bottom groove of the frame, handrails are also installed at the left and right ends of the frame, a telescopic assembly is also installed on the upper side wall of the frame, and the frame is connected to the bottom side wall of another frame through the telescopic assembly, the telescopic assembly includes a connecting plate, and a limiting plate slidably inserted therein, and the limiting plate and the connecting plate are connected by a three-axis electric rod.

[0008] The utility model is further configured that bottom grooves are opened on the left and right sides of the plate groove of the frame, and corner grooves are opened at the four corners of the plate groove, and the frame cooperates with the outer wall of the abutting plate on the pedal through the bottom groove.

[0009] The utility model is further configured that angle plates are welded at the four corners of the pedal, and the outer peripheral side walls of the angle plates cooperate with the inner walls of the angle grooves, fixing bolts are inserted into the angle plates, and the angle plates are connected to the frame through the fixing bolts.

[0010] The utility model is further configured such that an anti-slip groove is provided on the upper side wall of the pedal, and a clamping plate is welded on the bottom side wall of the pedal, the pedal is clamped in cooperation with the plate groove through the clamping plate, and storage grooves are provided on both sides of the clamping plate and on the bottom side wall of the pedal, and the spring and the abutment plate are arranged in the storage grooves.

[0011] The utility model is further configured such that the handrail and the frame are vertically arranged with each other, and the handrail is vertically arranged upwards, a fixed shaft is installed on the shaft end of the handrail, and the handrail is detachably fixedly connected to the frame via the fixed shaft.

[0012] The utility model is further configured that installation grooves are provided on the end surfaces on the upper and lower sides of the frame, and the frame is clamped with one end of a connecting plate in the telescopic assembly through the installation groove, a fixing hole is provided on the connecting plate, and a rod hole is provided on the installation groove.

[0013] The utility model is further configured that the fixing hole and the rod hole are arranged opposite to each other, the fixing hole and the rod hole are both inserted with a fixing rod, and the fixing rod extends horizontally through the frame.

[0014] The utility model is further configured such that a "T"-shaped plate groove is provided inside the connecting plate, the fixing rod is configured in an "I" shape, and the axial ends on both sides of the fixing rod are respectively slidably matched with a plate groove in the connecting plate.

[0015] The utility model has the following beneficial effects:

[0016] The utility model provides a frame, a pedal and a handrail, wherein the pedal cover is arranged on the frame, and springs and abutment plates are additionally provided at the bottom of both sides of the pedal. During assembly, the pedal is locked and connected by bolts, and during disassembly, due to the existence of the spring and the loss of the locking connection force of the bolts, the pedal will be pushed out of the frame by the spring, which facilitates the replacement of the pedal. At the same time, handrails are detachably fixedly installed on both sides of the frame, which can provide a handrail effect for the user when in use.

[0017] The utility model provides a telescopic component, wherein two groups of the telescopic components are provided and are respectively arranged on both sides of the frame, wherein the three-axis electric rods at both ends of the limit plate in the telescopic component will push the limit plate to extend out of the plate groove of the connecting plate when extending, and will pull the limit plate to retract into the interior of the connecting plate when retracting, so that the extension and retraction effects of the stairs do not require manual stretching and compression.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is the structural assembly drawing of a new type of electric telescopic loft ladder.

[0021] Figure 2 The figure is a structural diagram of a new type of electric telescopic loft ladder.

[0022] Figure 3 This is a structural disassembly diagram of a new type of electric telescopic attic ladder.

[0023] Figure 4 This is a bottom view of the pedal structure.

[0024] Figure 5 This is a schematic diagram of the structure of a telescoping group.

[0025] Figure 6 It is a structural cross-sectional view of the telescopic group.

[0026] Figure 7 This is a structural disassembly diagram of the telescopic group.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1-frame, 101-plate groove, 102-corner groove, 103-bottom groove, 104-installation groove, 104a-rod hole, 2-pedal, 201-anti-slip groove, 202-fixing bolt, 203-abutment plate, 203a-spring, 204-clamping plate, 205-storage groove, 206-corner plate, 3-handrail, 301-fixed axis, 4-telescopic assembly, 401-connecting plate, 401a-fixing hole, 401b-plate groove, 402-fixing rod, 403-limiting plate, 404-three-axis electric rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0030] See also Figure 1-4 The utility model is a novel electric telescopic loft ladder, comprising a frame 1 and a pedal 2 arranged thereon. The pedal 2 is conveniently taken out of the frame 1 by utilizing a spring 203a, and handrails 3 for handholding are also installed on both sides of the frame 1.

[0031] Specifically, a pedal 2 is embedded in the frame 1 , and a fixed shaft 301 is installed at the middle position of the left and right sides of the frame 1 , and the frame 1 is detachably fixedly connected to the handrail 3 through the fixed shaft 301 .

[0032] Furthermore, a plate groove 101 for assembling the pedal 2 is provided on the frame 1, and corner grooves 102 for matching the angle plate 206 are also provided at the four corners of the plate groove 101, and the angle plate 206 is connected to the frame 1 through a fixing bolt 202, and an anti-slip groove 201 is provided on the pedal 2, and storage grooves 205 are also provided on both sides of the bottom side wall of the pedal 2, and the inner wall of the storage groove 205 is connected to the abutment plate 203 through a spring 203a, and the abutment plate 203 also cooperates with the bottom groove 103 in the frame 1, wherein a clamping plate 204 is provided on the bottom side wall of the pedal 2, and the clamping plate 204 is clamped with the bottom of the plate groove 101.

[0033] The operation process of this embodiment is: when in use, turn one side of the anti-slip groove 201 on the pedal 2 upward, then align the angle plate 206 with the angle groove 102 on the frame 1 and cover the pedal 2, insert the fixing bolt 202 into the diagonal plate 206 to fix the pedal 2 in the frame 1, and when stepping on the pedal 2, hold the handrail 3 with both hands. Specific embodiment 2

[0034] See also Figure 5-7 On the basis of the specific embodiment 1, a telescopic component 4 is also provided, which includes a connecting plate 401. The two connecting plates 401 are slidably connected through a limit plate 403, and a three-axis electric rod 404 for driving the limit plate 403 is also provided inside the connecting plate 401.

[0035] Specifically, mounting grooves 104 are further provided on the upper and lower side walls on the left and right sides of the frame 1, and rod holes 104a are further provided on the axial surfaces of the mounting grooves 104, wherein the mounting grooves 104 are used to assemble the connecting plate 401 of the telescopic assembly 4, and a fixing rod 402 is also inserted on the connecting plate 401, and the fixing rod 402 extends through the connecting plate 401 into the rod hole 104a of the frame 1, and a three-axis electric rod 404 is installed inside the connecting plate 401, and the connecting plate 401 is connected to the limit plate 403 through the three-axis electric rod 404.

[0036] Furthermore, a fixing hole 401a is provided at the end of the connecting plate 401, and the connecting plate 401 is connected to the fixing rod 402 through the fixing hole 401a, a "T"-shaped plate groove 401b is provided inside the connecting plate 401, the limiting plate 403 is in the shape of an "I", and both ends of the limiting plate 403 are inserted into the plate groove 401b of the connecting plate 401 and slidably cooperate with it.

[0037] The operation process of this embodiment is as follows: when the three-axis electric rod 404 at both ends of the limit plate 403 in the telescopic component 4 is extended, it will push the limit plate 403 to extend the plate groove 401a of the connecting plate 401, so that the stairs can be unfolded, and when the three-axis electric rod 404 is retracted, it will pull the limit plate 403 back into the interior of the connecting plate 401, that is, shrink the stairs.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel electric telescopic loft ladder, comprising a frame (1) and a pedal (2) embedded thereon; the characteristics are: The frame (1) is provided with a plate groove (101), and the frame (1) cooperates with the pedal (2) through the plate groove (101); springs (203a) are installed at the bottom of the left and right sides of the pedal (2), and the pedal (2) is connected to the abutment plate (203) through the spring (203a); the abutment plate (203) extends into the bottom groove (103) of the frame (1); handrails (3) are also installed at the left and right ends of the frame (1); a telescopic assembly (4) is also installed on the upper side wall of the frame (1), and the frame (1) is connected to the bottom side wall of another frame (1) through the telescopic assembly (4); the telescopic assembly (4) includes a connecting plate (401) and a limiting plate (403) slidably inserted therein, and the limiting plate (403) and the connecting plate (401) are connected through a three-axis electric rod (404).

2. A novel electric loft telescopic ladder according to claim 1, characterized in that: Bottom grooves (103) are provided on the left and right sides of the plate groove (101) of the frame (1), and corner grooves (102) are provided at the four corners of the plate groove (101). The frame (1) cooperates with the outer wall of the abutment plate (203) on the pedal (2) through the bottom groove (103).

3. A novel electric loft telescopic ladder according to claim 2, characterized in that: Angle plates (206) are welded at the four corners of the pedal (2), and the outer peripheral side walls of the angle plates (206) cooperate with the inner walls of the angle grooves (102). Fixing bolts (202) are also inserted into the angle plates (206), and the angle plates (206) are connected to the frame (1) via the fixing bolts (202).

4. The novel electric telescopic loft ladder according to claim 1 is characterized in that: The upper side wall of the pedal (2) is provided with an anti-slip groove (201), and a clamping plate (204) is welded on the bottom side wall of the pedal (2); the pedal (2) is clamped and matched with the plate groove (101) via the clamping plate (204), and receiving grooves (205) are provided on both sides of the clamping plate (204) and on the bottom side wall of the pedal (2); the spring (203a) and the abutment plate (203) are arranged in the receiving grooves (205).

5. The novel electric telescopic loft ladder according to claim 1 is characterized in that: The handrail (3) and the frame (1) are arranged perpendicular to each other, and the handrail (3) is arranged vertically upwards; a fixed shaft (301) is installed on the shaft end of the handrail (3), and the handrail (3) is detachably fixedly connected to the frame (1) via the fixed shaft (301).

6. The novel electric telescopic loft ladder according to claim 1 is characterized in that: The frame (1) is provided with mounting grooves (104) on both upper and lower end surfaces, and the frame (1) is clamped with one end of a connecting plate (401) in the telescopic assembly (4) via the mounting groove (104), the connecting plate (401) is provided with a fixing hole (401a), and the mounting groove (104) is provided with a rod hole (104a).

7. The novel electric loft telescopic ladder according to claim 6 is characterized in that: The fixing hole (401a) and the rod hole (104a) are arranged opposite to each other, and a fixing rod (402) is inserted and matched in both the fixing hole (401a) and the rod hole (104a), and the fixing rod (402) extends horizontally through the frame (1).

8. The novel electric loft telescopic ladder according to claim 7 is characterized in that: A "T"-shaped plate groove (401b) is also provided inside the connecting plate (401), the fixing rod (402) is arranged in an "I" shape, and the two side axial ends of the fixing rod (402) are respectively slidably matched with a plate groove (401b) in the connecting plate (401).

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