A descent mechanism for an escape basket

Abstract

The application discloses a descending mechanism of an escape basket, which comprises an escape basket and a lifting line for suspending the escape basket, wherein the escape basket comprises a first fixed frame and a second fixed frame arranged on the front and back sides respectively, the lifting line comprises a first lifting line arranged on the left side of the first fixed frame and a second lifting line arranged on the right side of the first fixed frame, a receiving device for receiving the first lifting line and the second lifting line is arranged in the first fixed frame, a pay-off device for paying off the first lifting line and the second lifting line to make the escape basket descend is arranged on the first fixed frame, and balance supporting assemblies are arranged on the first lifting line and the second lifting line to make the escape basket descend stably. The balance supporting assemblies are arranged to make the escape basket descend stably and not overturn, thereby ensuring the safety performance of the escape basket during the descending process. Meanwhile, the lifting line is arranged on one side of the first fixed frame, and the structure is simpler.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of escape devices, in particular to a descending mechanism of an escape basket. BACKGROUND

[0002] In emergency situations such as fire and earthquake, safe and effective escape equipment is essential. Some existing escape basket descending devices have complex structures, and usually need to connect a hanging line for paying out on the frames on both sides of the escape basket to realize the descending function. For example, a guardrail with an escape function is disclosed in the patent document with publication number CN219764330U. This not only increases the cost and installation difficulty of the equipment, but also may cause problems such as asynchronous paying out on both sides in actual use, resulting in unstable descent of the escape basket. At the same time, if the forces on the front and back sides are uneven during the descent, the escape basket is prone to overturning, seriously threatening the life safety of the user. SUMMARY

[0003] In view of this, the purpose of the present application is to provide a descending mechanism with a simple structure and capable of stably descending the escape basket without overturning.

[0004] The technical solution adopted by the present application to solve the technical problems is as follows:

[0005] A descending mechanism of an escape basket, comprising an escape basket and a hanging line for suspending the escape basket, the escape basket comprising a first fixed frame and a second fixed frame arranged on the front and back sides respectively, the hanging line comprising a first hanging line arranged on the left side of the first fixed frame and a second hanging line arranged on the right side of the first fixed frame, the first fixed frame being provided with a receiving device for receiving the first and second hanging lines, the first fixed frame being provided with a paying-out device for paying out the first and second hanging lines to make the escape basket descend, and the first and second hanging lines each being provided with a balance support assembly for stably descending the escape basket.

[0006] In a preferred embodiment of the present application, a connecting rod is arranged between the first fixed frame and the second fixed frame to connect the two, the balance support assembly comprises a support arranged above the first fixed frame, a first traction line arranged on the support and fixed to the first fixed frame at the other end, a second traction line arranged on the support and fixed to the second fixed frame at the other end, and a third traction line arranged on the support and fixed to the connecting rod at the other end, and the first and second hanging lines each wrap around the support at least once.

[0007] In a preferred scheme of the present application, the support member comprises a support block and a pulley arranged on the upper end of the support block, the first traction line, the second traction line and the third traction line are arranged on the lower end of the support block, and the first hanging line and the second hanging line are wound around the pulley at least once.

[0008] In a preferred scheme of the present application, the first traction line and the second traction line are symmetrically arranged with respect to the third traction line, and the third traction line is located on the symmetry plane of the first fixed frame and the second fixed frame.

[0009] In a preferred scheme of the present application, the storage device comprises a first storage cavity arranged on the left side of the first fixed frame, a first winding shaft arranged in the first storage cavity, a second storage cavity arranged on the right side of the first fixed frame, a second winding shaft arranged in the second storage cavity, and a shaft coupling arranged between the first winding shaft and the second winding shaft and drivingly connected therebetween, the first fixed frame is provided with a first wire guide hole communicating with the first storage cavity, and the first fixed frame is provided with a second wire guide hole communicating with the second storage cavity.

[0010] In a preferred scheme of the present application, the first winding shaft is provided with a first threaded groove for winding the first hanging line, the second winding shaft is provided with a second threaded groove for winding the second hanging line, and the rotation direction of the first threaded groove is opposite to that of the second threaded groove.

[0011] In a preferred scheme of the present application, the pay-off device comprises a housing arranged on the first fixed frame and located at the shaft coupling, a manual pay-off structure arranged on the housing and used for synchronously paying off the first hanging line and the second hanging line, and a speed limiter capable of limiting the pay-off speed of the first hanging line and the second hanging line.

[0012] In a preferred scheme of the present application, the manual pay-off structure comprises a first limiting block arranged on the shaft coupling, a threaded shaft arranged in the housing, a rotating handle arranged on the housing and driving the threaded shaft to rotate, and a second limiting block arranged on the threaded shaft and capable of reciprocating along the axial direction of the threaded shaft to engage with the first limiting block.

[0013] In a preferred scheme of the present application, the first limiting block is in the shape of a water droplet, and the second limiting block comprises a recess capable of abutting against the protruding part of the first limiting block.

[0014] In a preferred scheme of the present application, the speed limiter comprises dampers arranged on the end portions of the first winding shaft and the second winding shaft.

[0015] The beneficial effects of the present application are: the escape basket descending mechanism comprises an escape basket and a hanging line suspending the escape basket, wherein the escape basket comprises a first fixed frame and a second fixed frame, the hanging line is arranged on one side of the first fixed frame, the receiving device for receiving the hanging line is arranged in the first fixed frame, the pay-off device for paying off the hanging line to make the escape basket descend is arranged on the first fixed frame, and the balance supporting assembly for making the escape basket descend stably is arranged on the hanging line. Thus, the hanging line for paying off is not arranged on both sides of the front and rear sides of the escape basket, the escape basket can descend, and the structure is simpler. Meanwhile, the balance supporting assembly is arranged, the force is not concentrated on one side of the first fixed frame during the descending process of the escape basket, the escape basket is prevented from overturning, the safety performance of the escape basket during the descending process is ensured, and the escape basket can descend stably. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the present application;

[0017] Figure 2 is a sectional view of the present application at the balance supporting assembly;

[0018] Figure 3 is a schematic view of the support in the present application;

[0019] Figure 4 is a sectional view of the present application at the upper end of the first fixed frame;

[0020] Figure 5 is a partial schematic view of the receiving device in the present application;

[0021] Figure 6 is a sectional view of the present application at the pay-off device. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0023] Reference Figures 1 to 6The application discloses a descending mechanism of an escape basket, which comprises an escape basket 1 and a hanging line 2 for suspending the escape basket 1, and the other end of the hanging line 2 is fixed on a wall body to suspend the escape basket 1. The escape basket 1 comprises a first fixed frame 11 and a second fixed frame 12 arranged on the front side and the rear side respectively, the hanging line 2 comprises a first hanging line 21 arranged on the left side of the first fixed frame 11 and a second hanging line 22 arranged on the right side of the first fixed frame 11, the first fixed frame 11 is provided with a receiving device 3 for receiving the first hanging line 21 and the second hanging line 22, the first fixed frame 11 is provided with a pay-off device 4 for paying off the first hanging line 21 and the second hanging line 22 to make the escape basket 1 descend, and the first hanging line 21 and the second hanging line 22 are both provided with a balance supporting assembly 5 for stably descending the escape basket 1. In this way, the hanging line 2 is only received on the front side or the rear side of the escape basket 1, and the hanging line 2 for paying off is not needed to be connected on the first fixed frame 11 and the second fixed frame 12 of the escape basket 1, so that the escape basket 1 can descend, and the structure is simpler. Meanwhile, the balance supporting assembly 5 is arranged, so that the escape basket 1 does not concentrate stress on one side of the first fixed frame 11 during the descending process, and the escape basket 1 is not overturned, the safety performance of the escape basket 1 during the descending process is ensured, and the escape basket 1 can stably descend.

[0024] Referring to Figures 1 to 3 In the application, the first fixed frame 11 and the second fixed frame 12 are provided with a connecting rod 13 for connecting the first fixed frame 11 and the second fixed frame 12, the balance supporting assembly 5 comprises a supporting piece 51 arranged above the first fixed frame 11, a first traction line 52 arranged on the supporting piece 51 and fixed on the first fixed frame 11 at the other end, a second traction line 53 arranged on the supporting piece 51 and fixed on the second fixed frame 12 at the other end, and a third traction line 54 arranged on the supporting piece 51 and fixed on the connecting rod 13 at the other end, the first traction line 52 and the second traction line 53 are fixed on the first fixed frame 11 through thread connection by connecting a connecting head, and the third traction line 54 is fixed on the connecting rod 13 through the same way, and the first hanging line 21 and the second hanging line 22 are wound on the supporting piece 51 at least once. In this way, the first traction line 53 and the second traction line 54 are used to balance the horizontal force received by the escape basket 1, the escape basket 1 is prevented from overturning, the height position of the supporting piece 51 is limited by the third traction line 54, the first traction line 53 and the second traction line 54 are in a straight state, and the stress on one side is prevented from being uneven.

[0025] Referring to Figure 2 and Figure 3In the scheme, the support 51 comprises a support block 511 and a pulley 512 arranged on the upper end of the support block 511, the first traction line 52, the second traction line 53 and the third traction line 54 are arranged on the lower end of the support block 511, and the first hanging line 21 and the second hanging line 22 are wound on the pulley 512 at least once, so as to facilitate the paying-off of the first hanging line 21 and the second hanging line 22 and prevent the phenomenon of jamming. Further, the first traction line 52 and the second traction line 53 are symmetrically arranged about the third traction line 54, and the third traction line 54 is located on the symmetry plane of the first fixed frame 11 and the second fixed frame 12.

[0026] With reference to Figure 4 and Figure 5 In the scheme, the receiving device 3 comprises a first receiving cavity 31 arranged on the left side of the first fixed frame 11, a first winding shaft 32 arranged in the first receiving cavity 31, a second receiving cavity 33 arranged on the right side of the first fixed frame 11, a second winding shaft 34 arranged in the second receiving cavity 33, and a shaft coupling 35 arranged between the first winding shaft 32 and the second winding shaft 34 and drivingly connected therebetween, the first fixed frame 11 is provided with a first wire hole 111 communicating with the first receiving cavity 31, and the first fixed frame 11 is provided with a second wire hole 112 communicating with the second receiving cavity 33, wherein the first wire hole 111 and the second wire hole 112 are arranged on the upper side of the first fixed frame 11. Further, the first winding shaft 32 is provided with a first threaded groove 321 for winding the first hanging line 21, the second winding shaft 34 is provided with a second threaded groove 341 for winding the second hanging line 22, and the rotation direction of the first threaded groove 321 is opposite to that of the second threaded groove 341. In this way, the first hanging line 21 and the second hanging line 22 are arranged and stored, so that they can be paid off smoothly and will not be jammed during paying-off.

[0027] With reference to Figure 4 and Figure 6In the scheme, the paying-out device 4 comprises a housing 41 arranged on the first fixed frame 11 and located at the coupling 35, a manual paying-out structure 42 arranged on the housing 41 and used for synchronously paying out the first hoisting line 21 and the second hoisting line 22, and a speed limiter 43 capable of limiting the paying-out speed of the first hoisting line 21 and the second hoisting line 22. Further, the manual paying-out structure 42 comprises a first limiting block 421 arranged on the coupling 35, a threaded shaft 422 arranged in the housing 41, a rotating handle 423 arranged on the housing 41 and used for driving the threaded shaft 422 to rotate, and a second limiting block 424 arranged on the threaded shaft 422 and capable of reciprocating along the axial direction of the threaded shaft 422 to be engaged with the first limiting block 421. Specifically, the first limiting block 421 is in the shape of a water drop, and the second limiting block 424 comprises a recessed portion 4241 capable of abutting against the protruding portion of the first limiting block 421. In this way, the first hoisting line 21 and the second hoisting line 22 are synchronously paid out in a manual manner, so as to ensure that the escape basket 1 is stably lowered. Moreover, the operation is simple and convenient, and the electrical control member is avoided, so that the safety is improved. Further, the speed limiter 43 is arranged to avoid that the escape basket 1 is lowered too fast, so as to further improve the safety performance.

[0028] With reference to Figure 4 In the scheme, the speed limiter 43 comprises dampers 431 arranged at the end portions of the first winding shaft 32 and the second winding shaft 34. In this way, the rotational speed of the first winding shaft 32 and the second winding shaft 34 is limited by the arranged dampers 431, so as to limit the paying-out speed of the first hoisting line 21 and the second hoisting line 22.

[0029] Based on the above ideal embodiments according to the present application, the above description can be used by relevant personnel to make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A descent mechanism of an escape basket, comprising an escape basket (1) and a suspension wire (2) for suspending the escape basket (1), the escape basket (1) comprising a first fixed frame (11) and a second fixed frame (12) respectively arranged at front and rear sides, characterized in that, The hanging wire (2) includes a first hanging wire (21) arranged on the left side of the first fixed frame (11) and a second hanging wire (22) arranged on the right side of the first fixed frame (11), the first fixed frame (11) is internally provided with a receiving device (3) for receiving the first hanging wire (21) and the second hanging wire (22), the first fixed frame (11) is provided with a pay-off device (4) for paying off the first hanging wire (21) and the second hanging wire (22) to lower the escape basket (1), and the first hanging wire (21) and the second hanging wire (22) are both provided with a balance support assembly (5) for stably lowering the escape basket (1); The first fixed frame (11) and the second fixed frame (12) are provided with a connecting rod for connecting them, the balance support assembly (5) includes a support piece (51) arranged above the first fixed frame (11), a first traction line (52) arranged on the support piece (51) and having the other end arranged on the first fixed frame (11), a second traction line (53) arranged on the support piece (51) and having the other end arranged on the second fixed frame (12), and a third traction line (54) arranged on the support piece (51) and having the other end arranged on the connecting rod, and the first hanging wire (21) and the second hanging wire (22) are both wound around the support piece (51) at least once; The support piece (51) includes a support block (511) and a pulley (512) arranged on the upper end of the support block (511), and the first traction line (52), the second traction line (53) and the third traction line (54) are all arranged on the lower end of the support block (511), and the first hanging wire (21) and the second hanging wire (22) are both wound around the pulley (512) at least once; The receiving device (3) includes a first receiving cavity (31) arranged on the left side of the first fixed frame (11), a first winding shaft (32) arranged in the first receiving cavity (31), a second receiving cavity (33) arranged on the right side of the first fixed frame (11), a second winding shaft (34) arranged in the second receiving cavity (33), and a shaft coupling (35) arranged between the first winding shaft (32) and the second winding shaft (34) and connecting them in transmission, the first fixed frame (11) is provided with a first wire guide hole (111) communicating with the first receiving cavity (31), and the first fixed frame (11) is provided with a second wire guide hole (112) communicating with the second receiving cavity (33); The first winding shaft (32) is provided with a first threaded groove (321) for winding the first hanging wire (21), and the second winding shaft (34) is provided with a second threaded groove (341) for winding the second hanging wire (22), and the rotation direction of the first threaded groove (321) is opposite to that of the second threaded groove (341).

2. A descent mechanism for an escape basket according to claim 1, wherein, The first traction line (52) and the second traction line (53) are symmetrically arranged about the third traction line (54), and the third traction line (54) is located on the symmetry plane of the first fixed frame (11) and the second fixed frame (12).

3. A descent mechanism for an escape basket according to claim 1, wherein, The wire paying-off device (4) comprises a housing (41) arranged on the first fixed frame (11) and located at the coupling (35), a manual wire paying-off structure (42) arranged on the housing (41) and used for synchronously paying off the first hanging wire (21) and the second hanging wire (22), and a speed limiter (43) for limiting the wire paying-off speed of the first hanging wire (21) and the second hanging wire (22).

4. A descent mechanism for an escape basket according to claim 3, wherein, The manual wire paying-off structure (42) comprises a first limiting block (421) arranged on the coupling (35), a threaded shaft (422) arranged in the housing (41), a rotating handle (423) arranged on the housing (41) and used for driving the threaded shaft (422) to rotate, and a second limiting block (424) arranged on the threaded shaft (422) and reciprocally moving along the axial direction of the threaded shaft (422) to be engaged with the first limiting block (421).

5. A descent mechanism for an escape basket according to claim 4, wherein, The first limiting block (421) is in the shape of a water drop, and the second limiting block (424) comprises a recessed portion (4241) abutting against the protruding portion of the first limiting block (421).

6. A descent mechanism for an escape basket according to claim 3, wherein, The speed limiter (43) comprises a damper (431) arranged at the end of the first winding shaft (32) and the second winding shaft (34).

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