Automatic rescue ladder stand of fire elevator
By introducing reinforcement components and bottom self-adjusting components into the fire elevator ladder, the problem of ladder swaying is solved, improving the safety and stability of climbing, making it suitable for fire rescue scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG XIZHIMEN ELEVATOR
- Filing Date
- 2025-12-30
- Publication Date
- 2026-04-10
AI Technical Summary
The existing ladders sway noticeably when deployed and lack effective reinforcement design, making it easy for rescuers to lose their balance during the climbing process.
The design incorporates reinforcement components and a bottom self-adjusting component, including a connecting ring, first and second connecting plates, a snap-fit assembly, an angle locking assembly, and anti-slip feet. Through the synergistic effect of these components, the structural stability and ground support capacity of the ladder are enhanced.
It effectively reduces lateral swaying of the ladder, enhances the safety and stability of climbing, and meets the reliability requirements in emergency scenarios such as fire rescue.
Smart Images
Figure CN121827676A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of rescue ladders, in particular to a fire elevator automatic rescue ladder. BACKGROUND
[0002] Electric ladders have appeared in building and home decoration application scenarios many times, and are foldable or telescopic stair devices, which are often used in space-limited occasions such as attics, warehouses or emergency exits, so as to save space and facilitate installation and use, are mature and reliable, and occupy small space, and the strength and anti-skid effect of the ladder are guaranteed.
[0003] However, the existing ladder has the following problems: the existing ladder generally has obvious shaking after being unfolded, mainly due to insufficient structural stability, large gap between connecting parts or lack of effective reinforcement design, which causes rescue personnel to be prone to imbalance risk during climbing, and the overall safety is poor, and it is difficult to meet the high requirements of equipment reliability in emergency scenes such as fire rescue, and therefore the present application provides a fire elevator automatic rescue ladder to solve the above problems. SUMMARY
[0005] The present application provides a fire elevator automatic rescue ladder to solve the problem of the existing ladder that the existing ladder generally has obvious shaking after being unfolded, and lacks effective reinforcement design, which causes rescue personnel to be prone to imbalance risk during climbing.
[0006] To achieve the above purpose, the present application provides the following technical scheme: a fire elevator automatic rescue ladder, comprising a wall body, a ceiling is installed on the top of the wall body, a linkage plate is rotatably connected inside the ceiling through a hinge, an electric telescopic ladder is installed on the surface of the linkage plate, a support plate is connected to the inner side of the electric telescopic ladder, a receiver is installed on the back of the ceiling, a pin is installed on the back of the linkage plate, a remote controller is installed on the surface of the wall body, a reinforcement assembly is arranged between the electric telescopic ladders, a bottom ring is connected to the bottom of the electric telescopic ladder, and a bottom self-adjusting assembly is arranged on the outer side of the bottom ring.
[0007] Preferably, the reinforcement assembly is composed of a connecting ring, a first connecting plate and a second connecting plate, the connecting ring is arranged between the electric telescopic ladders, the first connecting plate and the second connecting plate are rotatably connected at both ends of the connecting ring, one end of the first connecting plate is connected to the electric telescopic ladder, and one end of the second connecting plate is connected to another group of electric telescopic ladders.
[0008] Preferably, the bottom self-adjusting assembly is composed of a rotating shaft and an anti-skid leg, the rotating shaft is rotatably connected inside the bottom ring, and the anti-skid leg is fixedly connected to the outer side of the rotating shaft.
[0009] Preferably, one side of the first connecting plate is fixedly connected with a first limiting block, and the corresponding side of the second connecting plate is fixedly connected with a second limiting block, and the opposite sides of the first limiting block and the second limiting block are flat.
[0010] Preferably, a buckle assembly is arranged between the first connecting plate and the second connecting plate, the buckle assembly comprises a clamping block, a first movable slot, a clamping block, a sliding block and a return spring, the bottom of the first limiting block is fixedly connected with the clamping block, the inside of the second limiting block is provided with the first movable slot, the inside of the first movable slot is movably connected with the clamping block, the two sides of the clamping block are fixedly connected with the sliding block, the inside of the first movable slot is provided with the return spring, and the two ends of the return spring are respectively abutted against the clamping block and the inner wall of the first movable slot.
[0011] Preferably, the inside of the bottom ring is provided with an angle locking assembly, the angle locking assembly comprises a second movable slot, a ratchet wheel, a fixed rod, a movable plate, a tooth, a torsion spring and a pressing rod, the inside of the bottom ring is provided with the second movable slot, the outer surface of the rotating shaft is fixedly connected with the ratchet wheel, the top of the second movable slot is fixedly connected with the fixed rod, the outer side of the fixed rod is rotatably connected with the movable plate, the bottom of the movable plate is fixedly connected with the tooth, the outer surface of the fixed rod is sleeved with the torsion spring, the two ends of the torsion spring are connected with the bottom ring and the movable plate respectively, and the top of the bottom ring is movably connected with the pressing rod.
[0012] Preferably, the inside of the clamping block is fixedly connected with a protective pad, and the inside of the protective pad is provided with a groove matched with the clamping block.
[0013] Preferably, a resisting block one is embedded in the bottom center position of the clamping block, and a resisting block two is embedded in the inside of the clamping block, and the resisting block one and the resisting block two are made of metal.
[0014] Preferably, the two sides of the anti-skid supporting leg are respectively provided with a first fixing groove and a second fixing groove, and the first fixing groove and the second fixing groove correspond to the positions of the two groups of bottom rings.
[0015] Preferably, the bottom of the anti-skid supporting leg is fixedly connected with an anti-skid pad, and the anti-skid pad is made of rubber.
[0016] Compared with the prior art, the present application has the following advantages:
[0017] Through the arrangement of the reinforcing assembly, the first connecting plate and the second connecting plate are additionally arranged, after the electric telescopic ladder is unfolded, the stress is effectively dispersed, the lateral shaking is reduced, the locking is conducted under the action of the buckle assembly, the auxiliary locking points such as the top and the middle bolt are additionally arranged, and the triangular stable structure after unfolding is ensured.
[0018] The application sets adjustable angle anti-skid supporting legs on the bottom of the electric telescopic ladder, and the angle locking assembly is designed to press the ground tightly and compensate the shaking caused by uneven ground. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.
[0020] Figure 1 It is a structural front view schematic diagram of the present application;
[0021] Figure 2 It is a structural contraction state schematic diagram of the present application;
[0022] Figure 3 It is a structural expansion state schematic diagram of the present application;
[0023] Figure 4 It is a structural side view schematic diagram of the present application;
[0024] Figure 5 It is a structural schematic diagram of the receiver in the present application; Figure 4
[0025] Figure 6 It is a structural schematic diagram of the reinforcing assembly of the present application;
[0026] Figure 7 It is a structural schematic diagram of the buckle assembly of the present application;
[0027] Figure 8 It is a structural schematic diagram of the bottom self-adjusting assembly of the present application;
[0028] Figure 9 It is a structural cross-sectional schematic diagram of the anti-skid supporting leg in the present application; Figure 8
[0029] It is a partial enlarged schematic diagram of A in the present application; Figure 10 Figure 6 It is a partial enlarged schematic diagram of B in the present application.
[0030] Figure 11 Figure 9
[0031] In the figure: 1, wall; 2, ceiling; 3, linkage plate; 4, electric telescopic ladder; 5, support plate; 6, reinforcing assembly; 61, connecting ring; 62, first connecting plate; 63, second connecting plate; 64, first limiting block; 65, second limiting block; 66, buckle assembly; 661, clamping block; 662, first movable slot; 663, clamping block; 664, sliding block; 665, return spring; 666, protective pad; 667, abutting block one; 668, abutting block two; 7, bottom ring; 8, bottom self-adjusting assembly; 81, rotating shaft; 82, anti-skid supporting leg; 83, angle locking assembly; 84, first fixing groove; 85, second fixing groove; 86, anti-skid pad; 831, second movable slot; 832, ratchet wheel; 833, fixed rod; 834, movable plate; 835, tooth; 836, torsion spring; 837, pressing rod; 9, hinge; 10, receiver; 11, pin; 12, remote controller. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0033] Please refer to Figures 1-11 An embodiment provided by the present application: a fire-fighting elevator automatic rescue ladder, comprising a wall 1, a ceiling 2 installed on the top of the wall 1, a linkage plate 3 rotationally connected to the inside of the ceiling 2 through a hinge 9, an electric telescopic ladder 4 installed on the surface of the linkage plate 3, a support plate 5 connected to the inner side of the electric telescopic ladder 4, a receiver 10 installed on the back of the ceiling 2, a pin 11 installed on the back of the linkage plate 3, a remote controller 12 installed on the surface of the wall 1, a reinforcing assembly 6 arranged between the electric telescopic ladders 4, a bottom ring 7 connected to the bottom of the electric telescopic ladder 4, and a bottom self-adjusting assembly 8 arranged on the outer side of the bottom ring 7.
[0034] The present device solves the problem that the existing ladders generally have obvious shaking feeling after being unfolded and lack effective reinforcing design, which leads to the imbalance risk of rescue personnel in the climbing process, by arranging the reinforcing assembly 6 and the bottom self-adjusting assembly 8.
[0035] Further, the reinforcing assembly 6 is composed of a connecting ring 61, a first connecting plate 62 and a second connecting plate 63, the connecting ring 61 is arranged between the electric telescopic ladders 4, the first connecting plate 62 and the second connecting plate 63 are rotationally connected to the two ends of the connecting ring 61 respectively, one end of the first connecting plate 62 is connected to the electric telescopic ladder 4, and one end of the second connecting plate 63 is connected to another electric telescopic ladder 4. Figure 6As shown, the structure is used to expand through the electric telescopic ladder 4, drive the first connecting plate 62 and the second connecting plate 63 to rotate through the connecting ring 61, and under the rotating connection, the first connecting plate 62 and the second connecting plate 63 are in the same straight line.
[0036] Further, the bottom self-adjusting assembly 8 is composed of a rotating shaft 81 and an anti-skid foot 82, the rotating shaft 81 is rotatably connected inside the bottom ring 7, and the anti-skid foot 82 is fixedly connected outside the rotating shaft 81. Figure 8 As shown, the structure is used to automatically adjust the angle of the anti-skid foot 82 through the contact of the anti-skid foot 82 with the ground during expansion, under the rotating connection of the rotating shaft 81 with the bottom ring 7, to support the electric telescopic ladder 4.
[0037] Further, one side of the first connecting plate 62 is fixedly connected with a first limiting block 64, and the corresponding side of the second connecting plate 63 is fixedly connected with a second limiting block 65, and the opposite sides of the first limiting block 64 and the second limiting block 65 are flat. As shown, Figure 7 As shown, the structure is used to rotate the second connecting plate 63 and the first limiting block 64 to the contact of the first limiting block 64 with the second limiting block 65, through the flat surfaces at the first limiting block 64 and the second limiting block 65, to limit the continuous rotation of the second connecting plate 63 and the first limiting block 64, and control the activity range.
[0038] Further, the first connecting plate 62 and the second connecting plate 63 are provided with a buckle assembly 66, the buckle assembly 66 includes a clamping block 661, a first movable slot 662, a clamping block 663, a sliding block 664, and a reset spring 665, the bottom of the first limiting block 64 is fixedly connected with the clamping block 661, the inside of the second limiting block 65 is provided with the first movable slot 662, the inside of the first movable slot 662 is movably connected with the clamping block 663, the two sides of the clamping block 663 are fixedly connected with the sliding block 664, the inside of the first movable slot 662 is provided with the reset spring 665, and the two ends of the reset spring 665 are respectively abutted against the inner wall of the first movable slot 662 and the clamping block 663. As shown, Figure 10 As shown, the structure is used to insert the clamping block 661 into the clamping block 663, extrude the reset spring 665, make it deform, and under the complete insertion of the clamping block 661 into the clamping block 663, push the clamping block 663 and the clamping block 661 to abut against each other under the reset action of the reset spring 665, to fix them.
[0039] Further, the inside of the bottom ring 7 is provided with an angle locking assembly 83, which comprises a second movable slot 831, a ratchet wheel 832, a fixed rod 833, a movable plate 834, a tooth 835, a torsion spring 836 and a pressing rod 837. The inside of the bottom ring 7 is provided with the second movable slot 831. The outer surface of the rotating shaft 81 is fixedly connected with the ratchet wheel 832. The top of the second movable slot 831 is fixedly connected with the fixed rod 833. The outer side of the fixed rod 833 is rotatably connected with the movable plate 834. The bottom of the movable plate 834 is fixedly connected with the tooth 835. The direction of the tooth 835 is opposite to that of the ratchet wheel 832. The outer surface of the fixed rod 833 is sleeved with the torsion spring 836. The two ends of the torsion spring 836 are connected with the bottom ring 7 and the movable plate 834 respectively. The top of the bottom ring 7 is movably connected with the pressing rod 837. As shown in Figure 11 , the structure is used to drive the ratchet wheel 832 to rotate when the anti-skid foot 82 contacts the bottom to rotate, push the movable plate 834 to swing when rotating, and make the tooth 835 disengage from the gap of the ratchet wheel 832. When the anti-skid foot 82 rotates to a suitable angle, the tooth 835 is reinserted into the gap of the ratchet wheel 832 under the elastic action of the torsion spring 836, and the angle of the anti-skid foot 82 is locked.
[0040] Further, the inside of the clamping block 663 is fixedly connected with a protective pad 666. The inside of the protective pad 666 is provided with a groove matched with the clamping block 661. The protective pad 666 is made of rubber. As shown in Figure 10 , the structure is used to deform the protective pad 666 through the elasticity of the protective pad 666, so that the clamping block 661 can be separated from the inside of the clamping block 663 when the electric telescopic ladder stand 4 is retracted.
[0041] Further, the bottom center of the clamping block 661 is embedded with a resisting block one 667. The inside of the clamping block 663 is embedded with a resisting block two 668. The resisting block one 667 and the resisting block two 668 are made of metal. As shown in Figure 10 , the structure is used to make the resisting block two 668 of the clamping block 663 contact the resisting block one 667 when the clamping block 661 is completely inserted into the inside of the clamping block 663 through the design of the resisting block one 667 and the resisting block two 668, so as to make a collision sound and remind the user that the clamping is in place.
[0042] Further, the two sides of the anti-skid foot 82 are respectively provided with a fixed slot one 84 and a fixed slot two 85. The fixed slot one 84 and the fixed slot two 85 correspond to the positions of the two groups of bottom rings 7. As shown in Figure 9 , the structure is used to limit the activity range of the anti-skid foot 82 through the design of the fixed slot one 84 and the fixed slot two 85.
[0043] Further, the bottom of the anti-skid foot 82 is fixedly connected with an anti-skid pad 86. The anti-skid pad 86 is made of rubber.Figure 9 As shown, the structure is used to increase the friction between the anti-skid foot 82 and the ground by the design of the anti-skid pad 86, thereby improving the stability.
[0044] Working principle: when using, as shown in Figure 3 and Figure 6 shown, when the linkage plate 3 needs to be opened, the electric telescopic ladder 4 is started by the remote controller 12 to make the electric telescopic ladder 4 expand, the electric telescopic ladder 4 expands to drive the first connecting plate 62 and the second connecting plate 63 to rotate through the connecting ring 61, under the rotating connection, the first connecting plate 62 and the second connecting plate 63 are in the same straight line, as shown in Figure 7 and Figure 10 shown, the second connecting plate 63 and the first limiting block 64 rotate to the first limiting block 64 in contact with the second limiting block 65, through the plane at the first limiting block 64 and the second limiting block 65, thereby limiting the second connecting plate 63 and the first limiting block 64 from continuing to rotate, when the first limiting block 64 is in close contact with the second limiting block 65, the clamping block 661 is inserted into the clamping block 663, the reset spring 665 is extruded to deform, when the clamping block 661 is completely inserted into the clamping block 663, the reset spring 665 is pushed to make the clamping block 663 in close contact with the clamping block 661, thereby being fixed, as shown in Figure 9 and Figure 11 shown, the anti-skid foot 82 is in contact with the ground, under the rotating connection of the rotating shaft 81 and the bottom ring 7, the angle of the anti-skid foot 82 is automatically adjusted, the anti-skid foot 82 is in contact with the bottom to drive the ratchet wheel 832 to rotate, when rotating, the movable plate 834 is pushed to swing, so that the teeth 835 are separated from the gap of the ratchet wheel 832, when the anti-skid foot 82 rotates to the appropriate angle, under the elastic action of the torsion spring 836, the teeth 835 are reinserted into the gap of the ratchet wheel 832, the angle of the anti-skid foot 82 is locked, the electric telescopic ladder 4 is supported, and the above is the whole working principle of the present application.
[0045] It is apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, and that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered as exemplary and not limiting, and the scope of the application is defined by the appended claims rather than by the foregoing description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.
Claims
1. An automatic rescue ladder for fire elevators, comprising a wall (1), a ceiling (2) installed on the top of the wall (1), a linkage plate (3) rotatably connected inside the ceiling (2) via a hinge (9), an electric telescopic ladder (4) installed on the surface of the linkage plate (3), a support plate (5) connected to the inner side of the electric telescopic ladder (4), a receiver (10) installed on the back of the ceiling (2), a pin (11) installed on the back of the linkage plate (3), and a remote control (12) installed on the surface of the wall (1), characterized in that: The reinforcing assembly (6) is composed of a connecting ring (61), a first connecting plate (62) and a second connecting plate (63), the connecting ring (61) is arranged between the electric telescopic ladders (4), the first connecting plate (62) and the second connecting plate (63) are rotatably connected at two ends of the connecting ring (61), one end of the first connecting plate (62) is connected with the electric telescopic ladder (4), and one end of the second connecting plate (63) is connected with another electric telescopic ladder (4).
2. A fire service elevator automatic rescue ladder according to claim 1, characterized in that: The bottom self-adjusting assembly (8) is composed of a rotating shaft (81) and an anti-skid supporting leg (82), the rotating shaft (81) is rotatably connected in the bottom ring (7), and the anti-skid supporting leg (82) is fixedly connected to the outer side of the rotating shaft (81).
3. A fire service elevator automatic rescue ladder according to claim 1, characterized in that: One side of the first connecting plate (62) is fixedly connected with a first limiting block (64), and the corresponding side of the second connecting plate (63) is fixedly connected with a second limiting block (65), and the opposite side of the first limiting block (64) and the second limiting block (65) is a plane.
4. A fire service elevator automatic rescue ladder according to claim 2, characterized in that: The first connecting plate (62) and the second connecting plate (63) are provided with a buckle assembly (66), the buckle assembly (66) comprises a clamping block (661), a first movable slot (662), a clamping block (663), a sliding block (664) and a reset spring (665), the bottom of the first limiting block (64) is fixedly connected with the clamping block (661), the inside of the second limiting block (65) is provided with the first movable slot (662), the inside of the first movable slot (662) is movably connected with the clamping block (663), the two sides of the clamping block (663) are fixedly connected with the sliding block (664), the inside of the first movable slot (662) is provided with the reset spring (665), and the two ends of the reset spring (665) are respectively abutted against the clamping block (663) and the inner wall of the first movable slot (662).
5. A fire service elevator automatic rescue ladder according to claim 4, characterized in that: The inside of the bottom ring (7) is provided with an angle locking assembly (83), the angle locking assembly (83) comprises a second movable slot (831), a ratchet wheel (832), a fixed rod (833), a movable plate (834), a tooth (835), a torsion spring (836) and a pressing rod (837), the inside of the bottom ring (7) is provided with the second movable slot (831), the outer surface of the rotating shaft (81) is fixedly connected with the ratchet wheel (832), the top of the second movable slot (831) is fixedly connected with the fixed rod (833), the outer side of the fixed rod (833) is rotatably connected with the movable plate (834), the bottom of the movable plate (834) is fixedly connected with the tooth (835), the outer surface of the fixed rod (833) is sleeved with the torsion spring (836), the two ends of the torsion spring (836) are connected with the bottom ring (7) and the movable plate (834), and the top of the bottom ring (7) is movably connected with the pressing rod (837).
6. A fire service elevator automatic rescue ladder according to claim 3, characterized in that: 7. A fire service elevator automatic rescue ladder according to claim 5, characterized in that: The inside of the clamping block (663) is fixedly connected with a protective pad (666), and the inside of the protective pad (666) is provided with a groove matched with the clamping block (661).
8. A fire service elevator automatic rescue ladder according to claim 5, characterized in that: A resisting block one (667) is embedded in the bottom center of the clamping block (661), and a resisting block two (668) is embedded in the inside of the clamping block (663); the resisting block one (667) and the resisting block two (668) are made of metal.
9. A fire service elevator automatic rescue ladder according to claim 3, characterized in that: Two sides of the anti-skid supporting leg (82) are respectively provided with a fixed groove one (84) and a fixed groove two (85), and the fixed groove one (84) and the fixed groove two (85) correspond to the positions of the two groups of bottom rings (7).
10. A fire service elevator automatic rescue ladder according to claim 3, characterized in that: The bottom of the anti-skid supporting leg (82) is fixedly connected with an anti-skid pad (86), and the anti-skid pad (86) is made of rubber.