A quick-assembly fire ladder

Abstract

This utility model discloses a quick-assembly fire ladder, relating to the field of fire-fighting equipment technology. It includes side frames, with two symmetrical side frames connected by an array of trusses. The side frames have hollow interiors, with a locking groove at the upper end and an insertion rod fixedly mounted at the lower end. The side wall of the insertion rod is slidably connected to the locking groove. A limiting rod is fixedly mounted below the insertion rod, and side rails are mounted on both side walls. Two symmetrical limiting blocks slide on the side rails, with a support spring fixed between the two limiting blocks. The limiting blocks have inclined sliding surfaces. A through-hole is provided on the side wall of the locking groove corresponding to the limiting block. The side frame has a through-sliding rail. The lifting rod is slidably connected to the sliding rail on both sides, and a pushing plate is fixedly mounted on the lifting rod below the limiting block. This utility model has a simple structure, is easy to operate, and allows for quick assembly and disassembly of the fire ladder. After installation, it has a fixing mechanism, making it stable and less prone to detachment. It is highly practical and suitable for widespread application.

Description

Technical Field

[0001] This utility model belongs to the field of fire-fighting equipment technology, specifically relating to a quick-assembly fire ladder. Background Technology

[0002] Fire escape ladders are essential equipment used in firefighting, playing a crucial role in rescuing people from high-rise fires, fires far from the ground, and fire escape attempts. They must be secured using existing fire escape ladder structures. However, due to varying disaster situations, the required length of fire escape ladders differs, necessitating the use of splicing structures. Currently, fire escape ladders are often spliced ​​by inserting two ladders vertically and securing them with bolts. This method is time-consuming and requires tools. For emergency rescues, a fire escape ladder with a simple structure and easy, rapid assembly is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a quick-assembly fire ladder with a simple structure and convenient operation. It can be quickly assembled and disassembled, and has a fixing mechanism after installation, making it stable and not easy to fall off. It is highly practical and suitable for widespread application.

[0004] This utility model provides the following technical solution: a quick-assembly fire ladder, including side frames, two symmetrical side frames are fixedly connected by an array of trusses, the inside of the side frame is a cavity, the upper end of the side frame is a slot, the lower end of the side frame is fixedly provided with an insertion rod, the side wall of the insertion rod is slidably connected to the slot, and a limiting rod is fixedly provided below the insertion rod;

[0005] The limiting rod has a hollow interior and side rails on its two side walls. Two symmetrical limiting blocks slide on the side rails and a support spring is fixed between the two limiting blocks. The limiting blocks have inclined sliding surfaces extending through the limiting rod and facing the slot. The side wall of the slot has a through limiting opening corresponding to the limiting block.

[0006] The side frame has a through sliding rail at the uppermost truss, and a lifting rod that fits against the truss is located on the side of the truss. The lifting rod is slidably connected to the sliding rail on both sides. The lifting rod passes through the side frame and is fixedly fitted with a sliding plate. A pushing plate is fixedly fitted below the limiting block on the sliding plate.

[0007] Preferably, the bottom of the slot is a slot bottom plate, and when the limiting rod contacts the slot bottom plate, the upper side plane of the limiting block fits against the limiting opening.

[0008] Preferably, the lower side of the lifting rod is provided with a recessed groove, and both sides of the lifting rod are tightly connected to the sliding rail.

[0009] Preferably, the limiting rod is located on one side of the lifting rod and has a gap with the inner wall of the slot, and the sliding plate slides in contact with this gap.

[0010] The beneficial effects of this utility model are: simple structure, convenient operation, quick assembly and disassembly of fire ladders, and a fixing mechanism after installation, making the structure stable and not easy to fall off, with strong practicality, as detailed below:

[0011] (1) This utility model is equipped with a limiting rod. When splicing two sections of fire ladder, the upper and lower sides of the locking groove are inserted into the limiting rod with the corresponding position. During the insertion of the limiting rod, the inclined sliding surface of the limiting block is squeezed, causing it to retract into the limiting rod, allowing the limiting rod to enter. When the position is opposite to the limiting opening, it is popped out. At this time, the lower part of the limiting rod is pressed against the bottom plate of the groove, and the upper side of the limiting block is blocked by the upper wall of the limiting opening. The insertion rod can be fixed in the locking groove without bolts, thus realizing the splicing of the fire ladder by insertion.

[0012] (2) This utility model is equipped with a lifting rod. The lifting rod is located below the sliding rail and coincides with the truss. It will not affect the climbing. After the rescue is completed, the lifting rod is lifted through the buckle groove below it. The lifting rod drives the pushing plate to slide upward and squeeze the inclined sliding surface inside the slot, so that the limiting block is separated from the limiting port. The insertion rod can then be pulled out of the slot, realizing the rapid disassembly of the fire ladder. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is an overall schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the snap-in groove and the limiting rod of this utility model when they are combined;

[0016] The markings in the diagram are as follows: 1. Side frame; 2. Truss; 3. Insertion rod; 4. Insertion slot; 5. Limiting rod; 6. Limiting block; 7. Inclined sliding surface; 8. Limiting opening; 9. Sliding rail; 10. Lifting rod; 11. Sliding plate; 12. Slot bottom plate; 13. Pushing plate; 14. Side rail; 15. Support spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] See Figure 1 A quick-assembly fire ladder includes a side frame 1. Two symmetrical side frames 1 are fixedly connected by an array of trusses 2 to form the main body of the ladder. The side frame 1 has a hollow interior to make the ladder lighter. The upper end of the side frame 1 has a slot 4, and the lower end of the side frame 1 is fixedly provided with an insertion rod 3. The insertion rod 3 is inserted into the slot 4 to align the ladder. The side wall of the insertion rod 3 is slidably connected to the slot 4 to prevent the ladder from shaking at the joint.

[0022] See Figure 1-2A limiting rod 5 is fixedly installed below the insertion rod 3. The limiting rod 5 has a hollow interior, and side rails 14 are provided on its two side walls. Two symmetrical limiting blocks 6 are slidably mounted on the side rails 14. The limiting blocks 6 move along the side rails 14. A support spring 15 is fixed between the two limiting blocks 6, so that the limiting blocks 6 can protrude from the limiting rod 5 when no external force is applied. The portion of the limiting block 6 that extends through the limiting rod 5 and faces the insertion groove 4 has an inclined sliding surface 7. The side wall of the slot 4 is provided with a through-hole 8 corresponding to the limiting block 6. When the inclined sliding surface 7 is in contact with the upper edge of the slot 4, the limiting block 6 is squeezed into the limiting rod 5. When it is located at the limiting hole 8, it is popped out by the support spring 15. The bottom of the slot 4 is the slot bottom plate 12. When the limiting rod 5 contacts the slot bottom plate 12, the upper plane of the limiting block 6 is in contact with the limiting hole 8. At this time, the limiting block 6 is clamped, and the insertion rod 3 is fixed in the slot 4.

[0023] See Figure 1-2 The side frame 1 has a through sliding rail 9 at the top truss 2. The side of the truss 2 has a lifting rod 10 that fits against it. The two sides of the lifting rod 10 are slidably connected to the sliding rail 9. The lower side of the lifting rod 10 has a recessed groove. The lifting rod 10 is lifted by the groove. The lifting rod 10 coincides with the truss 2 below the sliding rail 9, so it will not affect climbing. The two sides of the lifting rod 10 are tightly connected to the sliding rail 9, so that it will not slide under gravity after its position is moved. The lifting rod 10 passes through the side frame 1 and is fixed with a sliding plate 11. The limiting rod 5 is located on one side of the lifting rod 10 and has a gap with the inner wall of the slot 4. The sliding plate 11 slides against the gap. The sliding plate 11 is fixed with a pushing plate 13 below the limiting block 6. The pushing plate 13 presses the inclined sliding surface 7, so that the limiting block 6 is separated from the limiting opening 8.

[0024] This utility model of a quick-assembly fire ladder has a simple structure and is easy to operate. It can be quickly assembled and disassembled, and has a fixing mechanism after installation, making it stable and not easy to fall off. It is highly practical and suitable for widespread application.

[0025] For specific usage, please refer to... Figure 1-2 When splicing two sections of fire ladder, the upper and lower slots 4 are inserted into the limit rod 5 with their positions opposite. During the insertion of the limit rod 5, the inclined sliding surface 7 of the limit block 6 is squeezed, causing it to retract into the limit rod 5, allowing the limit rod 5 to enter. When the position is opposite to the limit opening 8, it is popped out. At this time, the lower part of the limit rod 5 is pressed against the bottom plate 12 of the slot, and the upper limit block 6 is blocked by the upper wall of the limit opening 8. The insertion rod 3 can then be fixed in the slot 4 without bolts, thus completing the splicing.

[0026] The lifting rod 10 overlaps with the truss 2 below the sliding rail 9, which will not affect the climbing. After the rescue is completed, the lifting rod 10 is lifted up through the buckle groove below it. The lifting rod 10 drives the pushing plate 13 to slide upward, squeezing the inclined sliding surface 7 inside the slot 4, so that the limiting block 6 is separated from the limiting port 8, and the insertion rod 3 is pulled out from the slot 4 to complete the disassembly.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid assembly fire escape ladder comprising side frames (1), two symmetrical said side frames (1) being fixedly connected by an array of trusses (2), characterized in that, The side frame (1) has a cavity inside. The upper end of the side frame (1) has a slot (4). The lower end of the side frame (1) is fixedly provided with an insertion rod (3). The side wall of the insertion rod (3) is slidably connected to the slot (4). A limiting rod (5) is fixedly provided below the insertion rod (3). The limiting rod (5) has a cavity inside, and side rails (14) are provided on its two side walls. Two symmetrical limiting blocks (6) are slidably provided on the side rails (14). A support spring (15) is fixed between the two limiting blocks (6). The limiting block (6) has an inclined sliding surface (7) that extends through the limiting rod (5) and faces the insertion groove (4). The side wall of the insertion groove (4) has a through limiting opening (8) corresponding to the limiting block (6). The side frame (1) has a through sliding rail (9) at the uppermost truss (2). The side of the truss (2) is provided with a lifting rod (10) that fits against it. The lifting rod (10) is slidably connected to the sliding rail (9) on both sides. The lifting rod (10) penetrates into the side frame (1) and is fixedly provided with a sliding plate (11). The sliding plate (11) is fixedly provided with a pushing plate (13) below the limiting block (6).

2. A quick assembly fire escape ladder according to claim 1, wherein, The bottom of the slot (4) is a slot bottom plate (12). When the limiting rod (5) contacts the slot bottom plate (12), the upper side plane of the limiting block (6) fits against the limiting opening (8).

3. The quick assembly fire escape ladder of claim 1, wherein, The lower side of the lifting rod (10) is provided with a recessed groove, and both sides of the lifting rod (10) are tightly connected to the sliding rail (9).

4. The quick assembly fire escape ladder of claim 1, wherein, The limiting rod (5) is located on one side of the lifting rod (10) and has a gap with the inner wall of the slot (4), and the sliding plate (11) slides in contact with the gap.

Images