Portable household fire-fighting escape device

Abstract

The invention provides a portable household fire-fighting escape device, and relates to the technical field of escape equipment. A turntable assembly with an escape rope, an escapement mechanism and a brake device are arranged in the shell; the turntable assembly comprises a planet carrier, a planet wheel arranged in the planet carrier and a sun wheel, a gear ring meshed with the planet wheel is arranged on the inner side of the planet carrier, and the sun wheel extends out of the planet carrier and is connected with the escapement mechanism and the brake device; a rotary disc connected with the planet wheel is arranged on the outer side of the planet carrier, and an escape rope is suitable for being installed on the rotary disc. The escapement mechanism is connected with the sun gear so as to decompose and release energy of the turntable and reduce the rotating speed of the sun gear; the brake device is in meshed connection with the sun gear through a connecting gear and is configured to be capable of adjusting the damping force applied to the sun gear so as to control the rotating speed of the sun gear, and therefore the descending speed of the escape rope is controlled. According to the scheme, the safety performance of the escape device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of escape equipment, and in particular to a portable household fire escape device. Background Art

[0002] There are many common household fire escape devices on the market, including escape descenders, escape slides, and escape air cushions. The reciprocating escape descender is designed with a dual-channel mechanism, so that when one person lands safely, the other person can start using it immediately, which significantly improves the overall escape efficiency. The utility model CN214181491U discloses an escape constant speed descender, which comprises a first fixed plate and a second fixed plate arranged relatively, an escapement mechanism and a transmission gear set arranged between the first fixed plate and the second fixed plate, wherein the transmission gear set is transmission-connected with the escapement mechanism; the escapement mechanism comprises an escapement wheel and at least one balance pendulum arranged on the periphery of the escapement wheel and cooperating with the escapement wheel; the transmission gear set comprises a first gear, a second gear, a third gear, a fourth gear and a rope clamping wheel, wherein the first gear is synchronously rotated and connected with the escapement wheel, the second gear is meshed with the first gear, the third gear is synchronously rotated and connected with the second gear, the fourth gear is meshed with the third gear, the rope clamping wheel is synchronously rotated and connected with the fourth gear, and the rope clamping wheel is transmission-connected with the escapement wheel; a rope groove for setting a safety rope is provided on the outer peripheral surface of the rope clamping wheel. The escape constant speed descender can reliably control the descent speed to be constant, can be stored for a long time and its performance is not affected by the external environment. However, in this solution, when only one of the escapements is used as a deceleration component, when the escapement fails, the danger to the user will be greatly increased. In addition, the user cannot control the speed of descent, and thus cannot stay at the required height, which cannot meet the user's height position requirements in an emergency. Summary of the invention

[0003] The invention discloses a portable household fire escape device, aiming to solve the above-mentioned problems.

[0004] The present invention adopts the following scheme:

[0005] A portable household fire escape device comprises a shell, a turntable assembly with an escape rope is arranged in the shell, and also comprises: an escapement mechanism and a braking device connected to the shell; wherein the turntable assembly comprises a planetary carrier, a planetary gear arranged in the planetary carrier, and a sun gear, a gear ring meshing with the planetary gear is arranged on the inner side of the planetary carrier, the sun gear extends out of the planetary carrier and is connected to the escapement mechanism and the braking device; a turntable connected to the planetary gear is arranged on the outer side of the planetary carrier, and the turntable is suitable for installing an escape rope; the escapement mechanism is connected to the sun gear to decompose and release the energy of the turntable and reduce the rotation speed of the sun gear; the braking device is meshed with the sun gear through a connecting gear, and is configured to be able to adjust the damping force applied to the sun gear to control the rotation speed of the sun gear, thereby controlling the descending speed of the escape rope.

[0006] Furthermore, the escapement mechanism includes an escapement wheel, an escapement clamp and a balance pendulum connected to the escapement clamp; wherein a connecting hole is provided at the central axis of the escapement wheel, and the connecting hole is sleeved on the sun wheel so that the escapement wheel and the sun wheel rotate synchronously; hook portions suitable for connecting with the outer teeth of the escapement wheel are provided on both sides of the escapement clamp, and the balance pendulum is fixedly connected to the escapement clamp to drive the escapement clamp to realize reciprocating swing, and the escapement clamp is suitable for making the two hook portions alternately collide with the outer teeth of the escapement wheel during the swing to reduce the rotation speed of the escapement wheel.

[0007] Furthermore, the braking device includes a brake motor, a ball screw, a slider, a damping block, and a brake gear. The brake gear is arranged at one end of the ball screw and is meshed with the sun gear through a connecting gear; the brake motor drives the ball screw to control the forward or reverse rotation of the ball screw; the slider is connected to the ball screw, and the damping block is connected to the slider and approaches or moves away from the brake gear under the drive of the slider when the ball screw rotates, thereby controlling the rotation speed of the brake gear through the damping block.

[0008] Furthermore, the damping block is made of rubber material, and a side thereof that is suitable for contacting the braking gear is provided with a plurality of protrusions to enhance the damping effect.

[0009] Furthermore, the brake motor is connected to a wireless transceiver module for connecting with a wireless remote control device through wireless signal control.

[0010] Furthermore, a mounting frame is provided below the turntable assembly, and a pulley is provided on the mounting frame for guiding the escape rope.

[0011] Furthermore, the turntable assembly is provided with a central rotating shaft connected to the housing, and the sun gear is mounted on the central rotating shaft.

[0012] Beneficial effects:

[0013] This solution achieves a first-stage deceleration of the turntable by means of a gear assembly disposed in the turntable assembly, a second-stage deceleration of the turntable by means of the escapement mechanism, and finally a third-stage deceleration of the turntable by means of a braking device. The multi-stage deceleration method can ensure that the user descends at a slower speed when using the escape device, thereby effectively improving the safety performance. By means of the setting of the braking device, the user can control the descent speed within a certain speed range, and braking protection is provided for the escape device, thereby improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the appearance structure of a portable household fire escape device according to an embodiment of the present invention;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of a portable household fire escape device according to an embodiment of the present invention;

[0016] Figure 3 It is a schematic diagram of the internal structure of a portable household fire escape device according to an embodiment of the present invention;

[0017] Figure 4 It is a schematic diagram of the internal structure of a portable household fire escape device according to an embodiment of the present invention;

[0018] Figure 5 It is a schematic diagram of the internal structure of a portable household fire escape device according to an embodiment of the present invention from another perspective;

[0019] Figure 6 It is a cross-sectional schematic diagram of a turntable assembly of a portable household fire escape device according to an embodiment of the present invention;

[0020] Icons: housing 1, turntable assembly 2, planetary carrier 21, ring gear 22, sun gear 23, turntable 24, center shaft 25, pulley 26, mounting frame 27, planetary gear 28, escapement mechanism 3, escapement wheel 31, escapement clamp 32, hook portion 321, balance pendulum 33, braking device 4, brake motor 41, ball screw 42, slider 43, damping block 44, brake gear 45, connecting gear 5. DETAILED DESCRIPTION

[0021] Combination Figures 1 to 6As shown, this embodiment provides a portable household fire escape device, including a housing 1, a turntable assembly 2 with an escape rope is arranged in the housing 1, and also includes: an escapement mechanism 3 and a brake device 4 connected to the housing 1; wherein the turntable assembly 2 includes a planetary carrier 21, a planetary gear 28 arranged in the planetary carrier 21, and a sun gear 23, the inner side of the planetary carrier 21 is provided with a gear ring 22 meshing with the planetary gear 28, the sun gear 23 extends out of the planetary carrier 21 and is connected with the escapement mechanism 3 and the brake device 4; a turntable 24 connected with the planetary gear 28 is arranged on the outer side of the planetary carrier 21, and the turntable 24 is suitable for installing an escape rope; the escapement mechanism 3 is connected to the sun gear 23 to decompose and release the energy of the turntable 24 and reduce the rotation speed of the sun gear 23; the brake device 4 is meshed with the sun gear 23 through a connecting gear 5, and is configured to be able to adjust the damping force applied to the sun gear 23 to control the rotation speed of the sun gear 23, thereby controlling the descending speed of the escape rope.

[0022] In this embodiment, the housing 1 can be fixedly mounted on an outer wall, such as the outer edge of a window sill. The brake device 4 can have a built-in power supply, or an external power supply for power supply. The escapement mechanism 3 and the brake device 4 are arranged in the housing 1, and the housing 1 can be disassembled and assembled. The brake device 4 is arranged above the escapement mechanism 3, and the two are connected by a connecting gear 5.

[0023] Combination Figures 2 to 6 As shown, the turntable assembly 2 is connected to the housing 1 through the central rotating shaft 25 and the bearing, and the central rotating shaft 25 is provided with gear teeth to form a sun gear 23. The turntable assembly 2 includes a planetary frame 21 and a turntable 24, the inner side wall of the planetary frame 21 is formed with a gear ring 22, and a plurality of planetary wheels 28 are arranged in the planetary frame 21, the planetary wheels 28 are meshed and connected with the gear ring 22 and the sun gear 23, the turntable 24 is connected with the planetary wheels 28, and the outer side is used to connect the escape rope. When working, the escape rope drives the wheel disc to rotate, and then the planetary wheels 28 installed on the wheel disc are operated, and the planetary wheels 28 are meshed with the gear ring 22 and the sun gear 23, so that the central rotating shaft 25 rotates, completing the speed change transmission from the wheel disc to the central rotating shaft 25. The descending device adopts a planetary gear reduction mechanism, which has a compact structure, stable operation, no noise, and high reliability. The installation form of the wheel disc is simple, the assembly process is easy, and the failure rate is low. In one embodiment, a mounting frame 27 is provided below the turntable assembly 2, and a pulley 26 is provided on the mounting frame 27 for guiding the escape rope, and three pulleys 26 may be provided.

[0024] Combination Figures 2 to 4As shown, the escapement mechanism 3 includes an escapement wheel 31, an escapement clip 32, and a balance pendulum 33 connected to the escapement clip 32; wherein, a connection hole is provided at the central axis of the escapement wheel 31, and the connection hole is sleeved on the sun gear 23 so that the escapement wheel 31 and the sun gear 23 rotate synchronously; here, the connection hole of the escapement wheel 31 is provided with an internal tooth structure meshing with the gear teeth of the sun gear 23, which can be detachable on one hand, and can also rotate synchronously with the sun gear 23 on the other hand. The escapement clip 32 is provided below the escapement wheel 31, and is connected to the housing 1 through a rotating shaft, so that it can swing on the housing 1; the balance pendulum 33 is fixedly connected to the escapement clip 32, and its weight is greater than that of the escapement clip 32, so as to ensure that the escapement clip 32 will not flip during the swinging process. The two sides of the escapement clamp 32 are provided with hook parts 321 suitable for connecting with the outer teeth of the escapement wheel 31. The balance pendulum 33 is fixedly connected to the escapement clamp 32 to drive the escapement clamp 32 to swing back and forth. The escapement clamp 32 is suitable for making the two hook parts 321 alternately collide with the outer teeth of the escapement wheel 31 during the swing to reduce the rotation speed of the escapement wheel 31. The escapement clamp 32 is powered by the balance pendulum 33, and the entire mechanism is reciprocated by the swing of the balance pendulum 33. The function of the escapement mechanism 3 can be understood as decomposing a large part of energy into multiple parts of smaller energy and releasing them evenly. In this design, when the user grabs the steel wire wrapped around the planet carrier 21 and descends, a large gravitational potential energy is generated. After this part of energy is transmitted to the escapement mechanism 3 through the sun gear 23, the escapement wheel 31 and the escapement clamp 32 of the escapement mechanism 3 are alternately meshed with each other, converting the large gravitational potential energy into multiple parts of smaller energy for release, so as to achieve the purpose of allowing the user to descend slowly and evenly and finally land smoothly and safely. By cooperating with the gear assembly in the turntable assembly 2 through the escapement mechanism 3, the rotation speed of the turntable 24 can be reduced, allowing the user to land smoothly.

[0025] Combination Figures 2 to 4As shown, in this embodiment, the brake device 4 is arranged above the turntable assembly 2 through the connecting gear 5. Of course, it can also be arranged at other positions. This embodiment is described by taking the setting above as an example. The brake device 4 includes a brake motor 41, a ball screw 42, a slider 43, a damping block 44, and a brake gear 45. The ball screw 42 is rotatably arranged on the housing 1. The brake gear 45 is arranged at one end of the ball screw 42 and is meshed and connected with the sun gear 23 through the connecting gear 5. Here, the brake gear 45 is connected to the ball screw 42 through a bearing. The brake motor 41 drives and connects the ball screw 42 to control the forward or reverse rotation of the ball screw 42. The brake motor 41 can be a servo motor, which can control the ball screw 42 to realize forward or reverse rotation. The slider 43 is threadedly connected to the ball screw 42. When the ball screw 42 rotates, the slider 43 is affected by the rotation limit plate and moves left and right in the length direction of the ball screw 42 to approach or move away from the brake gear 45. The damping block 44 is connected to the slider 43 and approaches or moves away from the brake gear 45 under the drive of the slider 43 when the ball screw 42 rotates, thereby controlling the rotation speed of the brake gear 45 through the damping block 44. The damping block 44 is made of rubber material, and a plurality of protrusions are arranged on the side suitable for contacting the brake gear 45 to enhance the damping effect. Here, it is used to control the friction force of the damping block 44 acting on the brake gear 45 by controlling the forward or reverse rotation of the brake motor 41, thereby achieving the deceleration of the brake gear 45. Since the brake gear 45 is connected to the sun gear 23 through the connecting gear 5, and the sun gear 23 is connected to the turntable 24 through the planetary gear 28, when the rotation speed of the turntable 24 is relatively large, the speed of the control turntable 24 can be adjusted by controlling the resistance of the damping block 44 to the brake gear 45, and the brake turntable can also be stopped from rotating. On the one hand, it can play a role in regulating the descending speed, and on the other hand, it can also play a role in safety protection, especially when the escapement mechanism 3 fails. The braking mechanism and the escapement mechanism 3 provided in the present solution are independent of each other and can both act on the turntable assembly 2 to achieve the effect of independent or coordinated control.

[0026] In a preferred embodiment, the brake motor 41 is connected to a wireless transceiver module for connecting with a wireless remote control device through wireless signal control. This avoids the safety issues caused by traditional wire transmission and provides greater convenience. The wireless transceiver module and the wireless remote control device in this solution are both existing technology products and will not be described in detail here.

[0027] The escape rope (not shown) is preferably a steel wire rope, etc., which can play a fire prevention role.

[0028] Through the design of this solution, a multi-stage deceleration effect of the escape descender is achieved. By setting the braking device 4, the user can conveniently control the descending speed and the stopping height, which helps to improve safety in complex environments.

[0029] It should be understood that the above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

[0030] The above description of the drawings used in the implementation manner only illustrates certain embodiments of the present invention and should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

Claims

1. A portable household fire escape device, comprising a housing, wherein a turntable assembly with an escape rope is arranged in the housing, It is characterized in that Also includes: An escapement mechanism and a brake device connected to the housing; wherein: The turntable assembly includes a planet carrier, a planetary gear disposed in the planet carrier, and a sun gear, wherein a gear ring meshing with the planetary gear is disposed inside the planet carrier, and the sun gear extends out of the planet carrier and is connected to the escapement mechanism and the brake device; a turntable connected to the planetary gear is disposed outside the planet carrier, and the turntable is suitable for installing an escape rope; The escapement mechanism is connected to the sun wheel to decompose and release the energy of the rotating disk and reduce the rotation speed of the sun wheel; The braking device is meshedly connected to the sun gear via a connecting gear, and is configured to be able to adjust the magnitude of the damping force applied to the sun gear to control the rotation speed of the sun gear, thereby controlling the descending speed of the escape rope.

2. The portable household fire escape device according to claim 1, It is characterized in that The escapement mechanism includes an escapement wheel, an escapement clip and a balance pendulum connected to the escapement clip; wherein a connecting hole is provided at the central axis of the escapement wheel, and the connecting hole is sleeved on the sun wheel so that the escapement wheel and the sun wheel rotate synchronously; hook portions suitable for connecting with the outer teeth of the escapement wheel are provided on both sides of the escapement clip, and the balance pendulum is fixedly connected to the escapement clip to drive the escapement clip to realize reciprocating swing, and the escapement clip is suitable for making the two hook portions alternately collide with the outer teeth of the escapement wheel during the swing to reduce the rotation speed of the escapement wheel.

3. The portable household fire escape device according to claim 1, It is characterized in that The braking device includes a brake motor, a ball screw, a slider, a damping block, and a brake gear. The brake gear is arranged at one end of the ball screw and is meshed with the sun gear through a connecting gear. The brake motor drives the ball screw to control the forward or reverse rotation of the ball screw. The slider is connected to the ball screw, and the damping block is connected to the slider and approaches or moves away from the brake gear under the drive of the slider when the ball screw rotates, thereby controlling the rotation speed of the brake gear through the damping block.

4. The portable household fire escape device according to claim 3, It is characterized in that The damping block is made of rubber material, and a side thereof suitable for contacting with the braking gear is provided with a plurality of protrusions to enhance the damping effect.

5. The portable household fire escape device according to claim 3, It is characterized in that The brake motor is connected to a wireless transceiver module for connecting with a wireless remote control device through wireless signal control.

6. The portable household fire escape device according to claim 1, It is characterized in that A mounting frame is arranged below the turntable assembly, and a pulley is arranged on the mounting frame for guiding the escape rope.

7. The portable household fire escape device according to claim 1, It is characterized in that The turntable assembly is provided with a central rotating shaft connected to the housing, and the sun gear is mounted on the central rotating shaft.

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