CN216319565U

CN216319565U - Multi-stage speed reduction type descent control device

Info

Publication number: CN216319565U
Application number: CN202123018603.9U
Authority: CN
Inventors: 孙伟明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-19
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a multi-stage speed reduction type descent control device, which belongs to the technical field of rescue equipment and comprises a shell, a driving piece, a secondary speed change assembly and a primary deceleration assembly, wherein the driving piece is rotationally connected with the shell and is connected with a rope, and the rope is used for driving the driving piece to rotate; the secondary speed changing assembly is simultaneously connected with the active driving piece and the shell; the first-stage retarding assembly comprises a retarding piece connected with the shell and a driving cam connected with the second-stage speed change assembly, the driving cam is abutted to the retarding piece, the second-stage speed change assembly drives the driving cam to rotate, and the retarding piece is used for retarding the rotating speed of the driving cam. According to the multi-stage speed reduction type descent control device, the rotation speed is reduced step by step through the matching of the first-stage deceleration component and the second-stage speed change component, the rotation speed of the active driving part is finally reduced greatly, the descent speed of a user is reduced, and the user experience is better. The utility model has simple structure and obvious effect and is suitable for wide popularization.

Description

Multi-stage speed reduction type descent control device

Technical Field

The utility model relates to the technical field of rescue equipment, in particular to a multi-stage speed reduction type descent control device.

Background

Because the personnel in the high-rise building are dense, the personnel are difficult to evacuate when a fire disaster happens, and the difficulty is increased for rescue. When a building is in fire, the elevator cannot be used, the stairs can be blocked by smoke and fire due to the chimney effect, people cannot escape, and some people cannot tolerate smoking, fire, baking or panic to escape blindly, such as building jumping or passive waiting for rescue, and the like, so that unnecessary casualties are caused.

At present, most of fire disasters timely arrive at rescuers by fire fighters, on one hand, the safety of firefighters cannot be guaranteed, on the other hand, if the firefighters cannot arrive in time due to reasons such as road blockage, the people suffering from the fire disasters can only wait for the rescue in a passive mode, and the inevitable casualty loss is caused. The existing lifesaving equipment has a complex structure and a poor deceleration effect, and is easy to cause panic of a user under dangerous conditions.

SUMMERY OF THE UTILITY MODEL

In view of the above defects, the technical problem to be solved by the present invention is to provide a multi-stage deceleration type descent control device, so as to solve the problems of difficulty in rescuing people, complex structure of lifesaving equipment, high cost, difficulty in wide popularization and poor deceleration effect existing in the prior art.

The utility model provides a multi-stage deceleration type descent control device, which comprises:

a housing;

the driving part is rotationally connected with the shell and is connected with a rope, and the rope is used for driving the driving part to rotate;

a secondary transmission assembly connected to both the active drive member and the housing;

one-level is slowed down the speed subassembly, include with the slow member that the shell is connected, with the initiative cam that second grade variable speed subassembly is connected, the initiative cam with slow member butt, second grade variable speed subassembly drive the initiative cam rotates, slow member is used for slowing down the rotational speed of initiative cam.

Preferably, the retarder includes:

the connecting body is rotatably connected with the shell;

the first retarding boss is integrally formed with the connecting main body;

the second retards the boss, with connecting body integrated into one piece, first retards the boss with connect through the arc surface between the second retards the boss.

Preferably, the active cam comprises:

a cam body rotatably connected to the housing;

the retarding lug, with retarding piece butt, and with cam main part integrated into one piece, the retarding lug is followed cam main part circumference is equipped with a plurality of, the retarding lug with connect through smooth curved surface between the cam main part.

Preferably, the two-stage transmission assembly comprises:

the main driving wheel is fixedly connected with the driving cam and used for driving the driving cam to rotate;

and the driven transmission wheel is meshed with the main transmission wheel and is fixedly connected with the driving piece and used for driving the main transmission wheel to rotate, and the transmission ratio between the driven transmission wheel and the main transmission wheel is less than 1.

Preferably, the housing comprises:

the upper cover is provided with a hanging hole;

the inferior valve, with the connection can be dismantled to the upper cover, be equipped with a plurality of fixed axles on the inferior valve, it is a plurality of the fixed axle respectively with the driving part the second grade variable speed subassembly with the one-level is slowed down the speed subassembly and is connected.

Preferably, the diameter of the circular arc surface is larger than the outer diameter of the driving cam; the cam main body is of a disc-shaped structure, and the circle center of the arc surface is located on the rotating shaft of the cam main body.

Preferably, the two retarding pieces are arranged on two sides of the driving cam respectively.

Preferably, the first retarding boss and the second retarding boss are both rotatably connected with rotating wheels, and the rotating wheels are abutted to the driving cam.

Preferably, a groove is formed in the active driving element, and the rope is arranged in the groove.

Preferably, a limiting hole is formed in the lower shell, and the rope penetrates through the limiting hole.

According to the scheme, the multi-stage speed reduction type descent control device provided by the utility model reduces the rotating speed step by step through the matching of the first-stage speed reduction component and the second-stage speed change component, so that the rotating speed of the active driving part is reduced greatly, the descending speed of a user is reduced, and the user experience is better; the motion state of the driving cam moving once stopping is realized through the matching states of the driving cam and the retarding piece in the conditions of impact, sliding, separation and the like, the motion state of the driving cam moving once stopping is fed back to a user, namely the downward moving state of moving once stopping, the buffering time after stopping is easy to increase the safety of the user, the user can conveniently grasp the running state of the descent control device in time, the processing is convenient in time when special conditions occur, and the use safety is improved. The utility model solves the problems of difficult rescue of rescuers, complex structure of lifesaving equipment, high cost, difficult wide popularization and poor speed reduction effect in the prior art, has simple structure and obvious effect and is suitable for wide popularization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a multi-stage descent control device according to the present invention;

fig. 2 is a schematic diagram of an explosion structure of a multi-stage deceleration type descent control device provided in the present invention;

FIG. 3 is a schematic diagram of a front view of another multi-stage descent control device according to the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic structural view of a multi-stage descent control device provided in the present invention, except for an upper cover;

FIG. 6 is a schematic structural view of a multi-stage descent control device according to the present invention, except for the upper cover;

FIG. 7 is a schematic structural view of a two-stage transmission assembly of a multi-stage descent control device according to the present invention;

FIG. 8 is a schematic structural view of a rope guide of a multi-stage descent control device according to the present invention;

fig. 9 is an actual assembly picture of the interior of the multi-stage descent control device according to the present invention.

In FIGS. 1-9:

1. a housing; 2. an active drive; 3. a secondary transmission assembly; 4. a primary retarding component; 5. a rope; 6. a rope guide; 11. an upper cover; 12. a lower case; 13. a fixed shaft; 21. a groove; 31. a main transmission wheel; 32. a driven wheel; 41. a retarding member; 42. a driving cam; 43. a rotating wheel; 111. a hanging hole; 411. a connecting body; 412. a first retard boss; 413. a second retard boss; 414. a circular arc surface; 415. accommodating grooves; 421. a cam body; 422. a retarding bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, an embodiment of a multi-stage descent control device according to the present invention will be described. The multi-stage speed reduction type descent control device comprises a shell 1, a driving piece 2, a secondary speed change component 3 and a primary speed reduction component 4, wherein the shell 1 plays a role in protecting and supporting; the active driving part 2 is rotationally connected with the shell 1 and is connected with a rope 5, and the rope 5 is used for driving the active driving part 2 to rotate; the secondary speed change component 3 is simultaneously connected with the active driving component 2 and the shell 1 and is used for changing the speed difference between the active driving component 2 and the primary speed reducing component 4; the primary speed reducing assembly 4 comprises a speed reducing piece 41 connected with the shell 1 and a driving cam 42 connected with the secondary speed changing assembly 3, the driving cam 42 is abutted against the speed reducing piece 41, the secondary speed changing assembly 3 drives the driving cam 42 to rotate, and the speed reducing piece 41 is used for reducing the rotating speed of the driving cam 42.

For convenience of explanation, referring to fig. 1, a rectangular coordinate system is established with any point in space as an origin, the direction of the rope 5 as a Z-axis, the direction of the upper cover 11 of the housing 1 relative to the lower housing 12 as an X-axis, and a linear direction perpendicular to both the X-axis and the Z-axis as a Y-axis, wherein an XY plane is a horizontal plane, a direction indicated on the horizontal plane is a horizontal direction, and a direction indicated on the Z-axis is a vertical direction.

Rope 5 drags active drive spare 2 to rotate, and active drive spare 2 passes through second grade speed change subassembly 3 with torque transfer to initiative cam 42, and initiative cam 42 rotates, drives the swing of retarder 41 on the one hand in the rotation process, and on the other hand and retarder 41 collision loss pivoted ability to slow down the rotational speed of initiative cam 42 by a wide margin, the moment of torsion after the active cam 42 passes through second grade speed change subassembly 3 output speed change, and active drive spare 2 slowly rotates.

Compared with the prior art, the multi-stage speed reduction type descent control device gradually reduces the rotating speed through the matching of the first-stage deceleration component 4 and the second-stage speed change component 3, finally greatly reduces the rotating speed of the active driving part 2, realizes the reduction of the descending speed of a user, and has better use experience of the user; through the matching state of each condition of the impact, the sliding, the separation and the like of the driving cam 42 and the retarding piece 41, the motion state of the driving cam 42 which moves once stops is realized, the motion state of the driving cam 42 which moves once stops is fed back to a user, namely, the downward moving state of the driving cam which moves once stops, the buffering time after the stopping is easy to increase the safety of the user, the user can conveniently grasp the running state of the descent control device in time, the processing is convenient in time when special conditions occur, and the use safety is improved. The utility model solves the problems of difficult rescue of rescuers, complex structure of lifesaving equipment, high cost, difficult wide popularization and poor speed reduction effect in the prior art, has simple structure and obvious effect and is suitable for wide popularization.

As another embodiment of the present invention, the retarder 41 of the multi-step deceleration-type descent control device comprises a connecting body 411, a first deceleration boss 412 and a second deceleration boss 413, wherein the connecting body 411 is rotatably connected with the casing 1; the first retarding boss 412 is integrally formed with the connecting body 411; the second retarding boss 413 and the connecting body 411 are integrally formed, and the first retarding boss 412 and the second retarding boss 413 are connected through an arc surface 414; the driving cam 42 is disposed between the first retard boss 412 and the second retard boss 413, and has a certain gap with the arc surface 414. The driving cam 42 sequentially collides with the first retarding boss 412 and the second retarding boss 413 to drive the connecting body 411 to rotate, and energy is lost in the process of collision and swing of the connecting body 411, so that the rotating speed is effectively slowed down.

As another embodiment of the present invention, the driving cam 42 of the multi-step descent control device comprises a cam main body 421 and a deceleration bump 422, wherein the cam main body 421 is rotatably connected to the housing 1; the retarding bump 422 is abutted against the retarding piece 41 and integrally formed with the cam main body 421, a plurality of retarding bumps 422 are arranged along the circumferential direction of the cam main body 421, and the retarding bumps 422 are connected with the cam main body 421 through smooth curved surfaces. Illustratively, two retarding bumps 422 are disposed on the left and right sides of the cam body 421, wherein the Y-axis direction is left and right in fig. 1, and the X-axis direction is front and back. When one of the retardation protrusions 422 collides with the first retardation protrusion 412, the second retardation protrusion 413 abuts against the smooth curved surface and slides; when the other of the retardation protrusions 422 collides with the second retardation protrusion 413, the first retardation protrusion 412 abuts against the smooth curved surface and slides. The rotation of the cam body 421 drives the two retarding protrusions 422 to repeatedly collide with the first retarding protrusion 412 and the second retarding protrusion 413, and the rotation speed of the cam body 421 is slowed down.

As another embodiment of the utility model, the two-stage speed changing assembly 3 of the multi-stage descent control device comprises a main transmission wheel 31 and a secondary transmission wheel 32, wherein the main transmission wheel 31 is fixedly connected with a driving cam 42 and is used for driving the driving cam 42 to rotate; the driven wheel 32 is simultaneously meshed with the main driving wheel 31 and is fixedly connected with the driving piece 2 and used for driving the main driving wheel 31 to rotate, and the transmission ratio between the driven wheel 32 and the main driving wheel 31 is smaller than 1. The driving wheel 31 and the driven wheel 32 can be two gears meshed with each other; the transmission ratio between the two is less than 1, namely, a smaller rotating speed can be transmitted to the driving cam 42, the driving cam 42 with the smaller rotating speed is more favorable for being matched with the retarding part 41 to lose energy and decelerate, the smaller rotating speed is transmitted to the driving part 2 after deceleration, and finally the function of deceleration is realized.

As another embodiment of the utility model, the casing 1 of the multistage deceleration descent control device comprises an upper cover 11 and a lower cover 12, wherein the upper cover 11 is provided with a hanging hole 111, when in use, the casing 1 is fixed on a wall surface through the hanging hole 111, and the two ends of the rope 5 are controlled to lift; inferior valve 12 can be dismantled with upper cover 11 and be connected, is convenient for to the installation of active drive piece 2, second grade variable speed subassembly 3, rope 5 and one-level retarder subassembly 4 and the use and the maintenance of whole device, is equipped with a plurality of fixed axles 13 on inferior valve 12, and a plurality of fixed axles 13 are connected with active drive piece 2, second grade variable speed subassembly 3 and one-level retarder subassembly 4 respectively.

As another embodiment of the present invention, the diameter of the arc surface 414 of the multi-stage deceleration type descent control device is greater than the maximum outer diameter of the driving cam 42, so that the driving cam 42 does not interfere or get stuck with the deceleration piece 41 during the rotation process, and the movement process is smoother; the cam main body 421 has a disc-shaped structure, and the center of the circular arc surface 414 is on the rotation axis of the cam main body 421. It is within the scope of the present disclosure that the performance of the active cam 42 and the retarder 41 can be achieved.

As another embodiment of the present invention, two speed reducing members 41 of the multi-stage speed reducing type descent control device are respectively disposed on two sides of the driving cam 42, so as to improve the speed reducing effect and the speed reducing efficiency, achieve a better speed reducing effect, and improve the comfort level of a user. The first retarding boss 412 and the second retarding boss 413 are connected with rotating wheels 43 in a rotating mode, the rotating wheels 43 are abutted to the driving cam 42, the rotating wheels 43 can be bearings, the bearings roll more smoothly, and the running smoothness is better. Be equipped with recess 21 on the active driving piece 2, rope 5 sets up in recess 21, and rope 5 can be for the chain that is equipped with a plurality of through-holes along length direction, and it is protruding that the peripheral card that evenly is equipped with a plurality of and through-hole block in the recess 21, and the slippage between rope 5 and the active driving piece 2 is avoided in the protruding and through-hole cooperation use of card, and the operation process is more stable.

In this embodiment, active driving element 2, secondary speed changing component 3 and one-level retarder 4 are all set up in shell 1, and shell 1 plays fine guard action to active driving element 2, secondary speed changing component 3 and one-level retarder 4. Be equipped with spacing hole on the inferior valve 12, rope 5 runs through spacing hole setting, and spacing hole effectively avoids rope 5 to tie a knot, and the operation process security is higher. All be equipped with holding tank 415 on first slow speed boss 412 and the second slow speed boss 413, rotate the wheel 43 setting with the holding tank 415 in, holding tank 415 carries on spacingly and supports fixedly to rotating the wheel 43, is favorable to rotating better cooperation between wheel 43 and the drive cam 42. It will be understood that the terms "length," "width," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings for convenience in describing the utility model and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

As another embodiment of the present invention, the multistage deceleration descent control device further comprises a rope guide 6, wherein the rope guide 6 may be composed of two semicircular plates and three rotating shafts arranged between the two semicircular plates, the three rotating shafts are in a triangular structure, and the triangular structure and the semicircular plates form an axisymmetric structure. Through holes are formed in the two semicircular plates, the rope guide 6 is fixedly connected with the fixed shaft 13 through the semicircular holes, and the through holes are formed in the symmetrical shafts of the semicircular plates. Rope 5 passes through between two adjacent pivots, and the pivot is spacing to rope 5, guarantees rope 5's stability.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. Details which are not described in detail in the embodiments of the utility model belong to the prior art which is known to the person skilled in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a multistage slowdown type descent control device which characterized in that includes:

a housing (1);

the driving part (2) is rotatably connected with the shell (1) and is connected with a rope (5), and the rope (5) is used for driving the driving part (2) to rotate;

a secondary transmission assembly (3) connected to both the active drive (2) and the housing (1);

one-level retarder subassembly (4), include with retarder (41) that shell (1) is connected, with initiative cam (42) that second grade variable speed subassembly (3) are connected, initiative cam (42) with retarder (41) butt, second grade variable speed subassembly (3) drive initiative cam (42) rotate, retarder (41) are used for slowing down the rotational speed of initiative cam (42).

2. A multistage descent control device according to claim 1, wherein the retarding member (41) comprises:

a connecting body (411) rotatably connected to the housing (1);

a first retard boss (412) integrally formed with the connecting body (411);

second slow speed boss (413), with connecting body (411) integrated into one piece, first slow speed boss (412) with connect through arc surface (414) between second slow speed boss (413).

3. A multi-stage descent-type retarder according to claim 2, wherein the active cam (42) comprises:

a cam body (421) rotatably connected to the housing (1);

the slow-down lug (422), with slow-down piece (41) butt and with cam main part (421) integrated into one piece, slow-down lug (422) are followed cam main part (421) circumference is equipped with a plurality of, slow-down lug (422) with connect through smooth curved surface between cam main part (421).

4. A multistage descent control device according to claim 1, wherein the two-stage transmission assembly (3) comprises:

the main transmission wheel (31) is fixedly connected with the driving cam (42) and is used for driving the driving cam (42) to rotate;

and the auxiliary driving wheel (32) is meshed with the main driving wheel (31) and is fixedly connected with the driving part (2) and used for driving the main driving wheel (31) to rotate, and the transmission ratio between the auxiliary driving wheel (32) and the main driving wheel (31) is smaller than 1.

5. A multistage descent control device according to claim 1, wherein the housing (1) comprises:

the upper cover (11) is provided with a hanging hole (111);

inferior valve (12), with the connection can be dismantled in upper cover (11), be equipped with a plurality of fixed axles (13) on inferior valve (12), it is a plurality of fixed axle (13) respectively with driving piece (2) second grade variable speed subassembly (3) with one-level retarder subassembly (4) are connected.

6. A multistage descent control device according to claim 3, wherein the circular arc surface (414) has a diameter greater than the outer diameter of the drive cam (42); the cam main body (421) is of a disc-shaped structure, and the circle center of the arc surface (414) is located on the rotating shaft of the cam main body (421).

7. A multi-stage descent control device according to claim 1, wherein the plurality of retarding members (41) are provided in two and respectively disposed on either side of the drive cam (42).

8. A multi-stage descent control device according to claim 2, wherein each of the first and second deceleration bosses (412, 413) is rotatably connected with a rotating wheel (43), and the rotating wheel (43) abuts against the driving cam (42).

9. A multi-stage descent control device according to claim 1, wherein the active drive member (2) is provided with a recess (21), and the rope (5) is disposed in the recess (21).

10. A multi-stage descent control device according to claim 5, wherein the lower casing (12) is provided with a limiting hole, and the rope (5) is arranged to penetrate through the limiting hole.