A ladder beam assembly for a domestic ladder

Abstract

The utility model discloses a domestic ladder roof beam combination structure, and safety linkage mechanism transversely sets up between two roof beam main parts, including the first pull -out arm and second pull -out arm of both ends, the first linkage shaft and second linkage shaft of both ends, the first linkage subassembly and second linkage subassembly through the double -end screw nut connection, set up the baffle and compression spring on the first linkage subassembly, and the first linkage subassembly is fixed on the first linkage shaft with the first pull -out arm, and the second linkage subassembly is fixed on the second linkage shaft with the second pull -out arm, baffle, the both ends of first linkage shaft and second linkage shaft are fixed with the roof beam main part of corresponding side respectively. The utility model discloses safety linkage mechanism sets up in the inside space formed by two roof beam main parts, and safety linkage mechanism is fixed with the roof beam main part through baffle, first linkage shaft and second linkage shaft, and is connected stable and reliable, and is connected with the safety tongs subassembly of outside through pull -out arm, and the inside safety linkage mechanism is triggered safely from outside, and the operation is convenient, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of home elevator technology, specifically to a home elevator upper beam assembly structure. Background Technology

[0002] Traditional household ladders have an empty interior area in the top beam, with the safety linkage mechanism located on the outside of the top beam. This type of linkage mechanism is exposed to the air and is prone to accumulating dust, oil, or getting stuck by foreign objects, leading to locking failure. It is also easily bumped during handling, use, or storage, causing deformation or damage. If accidentally triggered, there is a risk of misoperation. In addition, the external mechanism occupies extra space, increasing the overall packaging volume and transportation cost of the household ladder, and is also unsightly. Summary of the Invention

[0003] To overcome the aforementioned problems, the purpose of this utility model is to provide a combined structure for the upper beams of a household ladder, in which a safety linkage mechanism is set in the internal space formed by the two upper beams. The mechanism is connected to an external safety clamp assembly via a lifting arm, allowing the internal safety linkage mechanism to be safely triggered from the outside. This design is convenient to operate and highly practical.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a household ladder upper beam assembly structure, including an upper beam component and a safety linkage mechanism. The upper beam component includes two parallel upper beam bodies, two upper connecting plates fixed to the upper ends of the upper beam bodies, and a lower connecting plate fixed to the lower ends of the upper beam bodies. The safety linkage mechanism is laterally arranged between the two upper beam bodies and includes a first lifting arm and a second lifting arm at both ends, a first linkage shaft and a second linkage shaft at both ends, a first linkage component and a second linkage component connected by double-headed nuts, a baffle and a compression spring arranged on the first linkage component, the first linkage component and the first lifting arm being fixed on the first linkage shaft, and the second linkage component and the second lifting arm being fixed on the second linkage shaft; the baffle, the first linkage shaft and the second linkage shaft are respectively fixed to the upper beam body on the corresponding side. The safety linkage mechanism is located within the internal space formed by the upper beam assembly, preventing potential hazards caused by bumps and accidental activation of exposed components, thus extending the product's lifespan. It also eliminates the need for additional elevator installation space and enhances the aesthetics. The safety linkage mechanism is fixed to the upper beam body via the baffle, the first linkage shaft, and the second linkage shaft, ensuring a stable and reliable connection. The lifting arm connects to an external safety clamp assembly, allowing for safe triggering of the internal safety linkage mechanism from the outside, making operation convenient.

[0005] Furthermore, the first linkage component includes a first linkage rod and a first linkage plate welded to the left side of the first linkage rod. A first fixing plate is provided on the first linkage shaft at a position fixed to the first linkage component. The first linkage plate and the first fixing plate are fixed vertically by a first pin.

[0006] Furthermore, the second linkage component includes a second linkage rod and a second linkage plate welded to the right side of the second linkage rod. A second fixing plate is provided on the second linkage shaft at a position fixed to the second linkage component. The second linkage plate and the second fixing plate are fixed together by a second pin.

[0007] Furthermore, a positioning nut is provided on the first linkage rod, and the baffle is provided on the right side of the first linkage plate. The first linkage rod passes through the baffle and the positioning nut. The compression spring is wound around the first linkage rod, with one end abutting against the baffle and the other end abutting against the positioning nut.

[0008] Furthermore, there are two first lifting arms, which are fixed on both sides of the first linkage assembly on the first linkage shaft.

[0009] Furthermore, there are two second lifting arms, which are fixed on both sides of the second linkage assembly on the second linkage shaft.

[0010] Furthermore, the baffle is U-shaped, and its two sides are fixed to the corresponding upper beam body by bolts. This method of fixing the baffle to the upper beam body makes the safety linkage mechanism more stable within the upper beam assembly, preventing swaying.

[0011] Furthermore, the lower connecting plates are in two sets, symmetrically arranged at the lower end of the upper beam body. This arrangement of the lower connecting plates ensures the symmetrical structure of the upper beam assembly, allowing for good balance during installation and preventing tilting.

[0012] Furthermore, a micro switch is provided between the two upper beam bodies, and the micro switch is fixed on the second linkage shaft by a switch plate.

[0013] Furthermore, steel pulleys are fixed to both ends of the two upper beams, and rope-blocking rods are fixed to the sides of the steel pulleys.

[0014] The beneficial effects of this utility model are: The safety linkage mechanism of this utility model is set in the internal space formed by the two upper beams, saving the external space of the elevator, avoiding the hidden dangers caused by bumps and accidental operation of exposed parts, and improving the service life of the product. The safety linkage mechanism is fixed to the upper beam through a baffle, a first linkage shaft and a second linkage shaft, and the connection is stable and reliable. It is connected to the external safety clamp assembly through the lifting arm, so that the internal safety linkage mechanism can be safely triggered from the outside. It is easy to operate and highly practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 for Figure 1 The main view; Figure 3 for Figure 1 Top view; Figure 4 This is a schematic diagram of the safety linkage mechanism in this embodiment; Figure 5 for Figure 4 Top view.

[0016] In the diagram: 1. Upper beam main body; 2. Upper connecting plate; 3. Lower connecting plate; 4. First linkage rod; 5. Second linkage rod; 6. First linkage plate; 7. Second linkage plate; 8. Double-ended nut; 9. First lifting arm; 10. Second lifting arm; 11. First linkage shaft; 12. Second linkage shaft; 13. Baffle; 14. Compression spring; 15. First fixing plate; 16. Second fixing plate; 17. Micro switch; 18. Switch plate; 19. Steel pulley; 20. Rope guide rod; 21. Positioning nut. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] See Figures 1-5This embodiment discloses a household ladder upper beam assembly structure, including an upper beam component and a safety linkage mechanism. The upper beam component includes two parallel upper beam bodies 1, two upper connecting plates 2 fixed to the upper end of the upper beam body 1, and a lower connecting plate 3 fixed to the lower end of the upper beam body 1. The lower connecting plates 3 are in two sets, symmetrically arranged at the lower end of the upper beam body 1. The safety linkage mechanism is laterally arranged between the two upper beam bodies 1, including a first lifting arm 9 and a second lifting arm 10 at both ends, a first linkage shaft 11 and a second linkage shaft 12 at both ends, a first linkage component and a second linkage component connected by a double-ended nut 8, a baffle 13 and a compression spring 14 arranged on the first linkage component. The first linkage component and the first lifting arm 9 are fixed on the first linkage shaft 11, and the second linkage component and the second lifting arm 10 are fixed on the second linkage shaft 12. The two ends of the first linkage shaft 11 and the second linkage shaft 12 are respectively fixed to the upper beam body 1 on the corresponding side. There are two first lifting arms 9, fixed on both sides of the first linkage assembly on the first linkage shaft 11; there are two second lifting arms 10, fixed on both sides of the second linkage assembly on the second linkage shaft 12. The baffle 13 is U-shaped, and its two sides are fixed to the upper beam body 1 on the corresponding sides by bolts.

[0019] The first linkage assembly includes a first linkage rod 4 and a first linkage plate 6 welded to the left side of the first linkage rod 4. A first fixing plate 15 is provided on the first linkage shaft 11 at a position fixed to the first linkage assembly. The first linkage plate 6 and the first fixing plate 15 are fixed vertically by a first pin. The second linkage assembly includes a second linkage rod 5 and a second linkage plate 7 welded to the right side of the second linkage rod 5. A second fixing plate 16 is provided on the second linkage shaft 12 at a position fixed to the second linkage assembly. The second linkage plate 7 and the second fixing plate 16 are fixed vertically by a second pin.

[0020] A positioning nut 21 is provided on the first linkage rod 4, and a baffle 13 is provided on the right side of the first linkage plate 6. The first linkage rod 4 passes through the baffle 13 and the positioning nut 21. A compression spring 14 is wound around the first linkage rod 4, with one end abutting against the baffle 13 and the other end abutting against the positioning nut 21.

[0021] A micro switch 17 is also provided between the two upper beam bodies 1 of this utility model. The micro switch 17 is fixed on the second linkage shaft 12 by a switch plate 18.

[0022] The two ends of the two upper beam main body 1 of this utility model are also fixed with steel belt pulleys 19, and rope-blocking rods 20 are fixed on the side of the steel belt pulleys 19.

[0023] The safety linkage mechanism of this utility model is set in the internal space formed by the two upper beam main bodies 1, saving the external space of the elevator, avoiding the hidden dangers caused by bumps and accidental operation of exposed parts, improving the service life of the product, eliminating the need for additional installation space for the elevator, and making it more aesthetically pleasing; the safety linkage mechanism is fixed to the upper beam main body 1 through the baffle 13, the first linkage shaft 11 and the second linkage shaft 12, and the connection is stable and reliable; it is connected to the external safety clamp assembly through the first lifting arm 9 and the second lifting arm 10, so that the internal safety linkage mechanism can be safely triggered from the outside, making it convenient to operate and highly practical.

[0024] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A household ladder upper beam assembly structure, comprising an upper beam component and a safety linkage mechanism, wherein the upper beam component comprises two parallel upper beam bodies (1), two upper connecting plates (2) fixed to the upper end of the upper beam bodies (1), and a lower connecting plate (3) fixed to the lower end of the upper beam bodies (1), characterized in that: The safety linkage mechanism is horizontally arranged between the two upper beam bodies (1), including a first lifting arm (9) and a second lifting arm (10) at both ends, a first linkage shaft (11) and a second linkage shaft (12) at both ends, a first linkage component and a second linkage component connected by a double-headed nut (8), a baffle (13) and a compression spring (14) arranged on the first linkage component. The first linkage component and the first lifting arm (9) are fixed on the first linkage shaft (11), and the second linkage component and the second lifting arm (10) are fixed on the second linkage shaft (12). The baffle (13), the first linkage shaft (11) and the second linkage shaft (12) are respectively fixed to the upper beam body (1) on the corresponding side.

2. The household ladder upper beam assembly structure according to claim 1, characterized in that: The first linkage component includes a first linkage rod (4) and a first linkage plate (6) welded to the left side of the first linkage rod (4). A first fixing plate (15) is provided on the first linkage shaft (11) at a position fixed to the first linkage component. The first linkage plate (6) and the first fixing plate (15) are fixed together by a first pin.

3. The combined structure of the upper beam of a household ladder according to claim 2, characterized in that: The second linkage component includes a second linkage rod (5) and a second linkage plate (7) welded to the right side of the second linkage rod (5). A second fixing plate (16) is provided on the second linkage shaft (12) at the position where it is fixed to the second linkage component. The second linkage plate (7) and the second fixing plate (16) are fixed together by a second pin.

4. The combined structure of the upper beam of a household ladder according to claim 3, characterized in that: A positioning nut (21) is provided on the first linkage rod (4), and the baffle (13) is provided on the right side of the first linkage plate (6). The first linkage rod (4) passes through the baffle (13) and the positioning nut (21). The compression spring (14) is wrapped around the first linkage rod (4), with one end abutting against the baffle (13) and the other end abutting against the positioning nut (21).

5. The household ladder upper beam assembly structure according to claim 4, characterized in that: There are two first lifting arms (9), which are fixed on both sides of the first linkage component on the first linkage shaft (11).

6. The combined structure of the upper beam of a household ladder according to claim 5, characterized in that: There are two second lifting arms (10), which are fixed on both sides of the second linkage assembly on the second linkage shaft (12).

7. The household ladder upper beam assembly structure according to claim 6, characterized in that: The baffle (13) is U-shaped, and the two sides of the baffle (13) are fixed to the upper beam body (1) on the corresponding side by bolts.

8. The combined structure of the upper beam of a household ladder according to claim 7, characterized in that: The lower connecting plate (3) consists of two sets, which are symmetrically arranged at the lower end of the upper beam body (1).

9. The household ladder upper beam assembly structure according to claim 8, characterized in that: A micro switch (17) is also provided between the two upper beam bodies (1), and the micro switch (17) is fixed on the second linkage shaft (12) by a switch plate (18).

10. The household ladder upper beam assembly structure according to claim 9, characterized in that: Steel pulleys (19) are fixed at both ends of the two upper beam bodies (1), and rope-blocking rods (20) are fixed on the side of the steel pulleys (19).

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