CN112827080A

CN112827080A - Descent control device for fire fighting

Info

Publication number: CN112827080A
Application number: CN202110021591.0A
Authority: CN
Inventors: 刘兴友
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-05-25

Abstract

The invention discloses a descent control device for fire fighting, and relates to the technical field of descent control devices. According to the invention, the use range of the descent control device is enlarged by adding the pressing plate lock catch, the fixing stability of the descent control device can be ensured, the descent control device is prevented from falling off due to the fact that the descent control device is fixed on an unstable pipeline or a fence under the unforeseen condition, the personnel fixing device, the double retarders and the positioning column are added, the use of the old and children is facilitated, the winding and shaking caused by the descending of a single steel cable are avoided, the descent control device is improved, the centrifugal brake gear is added on the bottom surface of the descent control device, the friction block is added at the front end of the descent control device, the speed of the retarder is adjusted through the combined action of the front device and the rear device, and the personnel falling injury caused.

Description

Descent control device for fire fighting

Technical Field

The invention relates to a descent control device, relates to the technical field of descent control devices, and particularly relates to a descent control device for fire fighting.

Background

The slow lowering device consists of hook (or hanging ring), hanging belt, rope, speed controller, etc. and may be installed in window of building, balcony, flat top of building, etc. or on elevating fire truck to rescue the person in fire in high building. The following problems exist in the prior art:

1. the existing descent control device only adopts a hook to fix a release type, a hanging lock catch needs to be fixed on a window fence or a pipeline when the descent control device is used, and one of the existing descent control devices in a family is not necessarily provided with a fence or a pipeline capable of being hung, and the two pipelines or fences are not necessarily capable of bearing the pulling force of descending of people, so that the descent control device has great risk and even cannot be used;

2. the existing descent control device is fixed by a single belt on a personnel fixing device, is unstable for the old and children, is difficult to use, is a single steel cable, is easy to shake and rotate when being used, and can also cause winding phenomenon between the steel cables when being used simultaneously, so that the descent control device can not normally descend, is out of action and even causes greater danger.

Disclosure of Invention

The invention provides a descent control device for fire fighting, which has the capability of fixing in multiple modes and solves the problem that a lock catch cannot be fixed or is unstable by means of suspension; the other purpose is to solve the problems of unstable fixation of people and swaying and winding of the steel cable so as to achieve the effects of stable fixation and steel cable stabilization.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a descent control device for fire fighting comprises a steel cable recovery wheel, wherein the inner surface of the steel cable recovery wheel is movably connected with a lifting device, the lifting device comprises a steel cable, the outer surface of the steel cable is movably connected with a descent control device, and the left side surface of the descent control device is movably connected with an equipment fixing device;

the lifting device also comprises a personnel fixing device, the surface of the steel cable is provided with a lock hole, the personnel fixing device is fixedly and movably hung in the lock hole, and a positioning device is fixedly arranged on the surface of the steel cable and on the left side of the personnel fixing device;

the slow descending device comprises a slow descending device, the steel cable penetrates through the interior of the slow descending device, and a slow descending fixing device is fixedly connected to the left side surface of the slow descending device;

the equipment fixing device comprises a pressing plate lock catch, the pressing plate lock catch is movably arranged on the left side surface of the slow-descending fixing device, and a hanging lock catch is fixedly arranged at the left end of the pressing plate lock catch.

The technical scheme of the invention is further improved as follows: the personnel fixing device comprises a shoulder strap, a chest strap is fixedly connected to the middle of the shoulder strap, leg straps are fixedly connected to the lower end of the shoulder strap, and connecting devices are fixedly mounted on the left side and the right side of the surface of the chest strap.

The technical scheme of the invention is further improved as follows: the connecting device comprises a connecting ring which is fixedly arranged on the surface of the chest belt, a hanging buckle is movably arranged in the connecting ring, and a movable threaded lock catch is sleeved at the opening of the hanging buckle in a threaded manner.

The technical scheme of the invention is further improved as follows: the positioning device comprises a positioning lock, the positioning lock is fixedly connected to the outer surface of the steel cable, a positioning column is fixedly mounted on the upper end of the positioning lock, the positioning lock comprises an open ring, the open ring is fixedly mounted on the lower surface of the positioning column and on the outer surface of the steel cable, a lock cylinder is sleeved on the right side face of the open ring in a threaded mode, a semicircular locking plate is movably connected to the left end of the lock cylinder, and a sliding assisting roller is arranged on the left side surface of the open ring.

The technical scheme of the invention is further improved as follows: the slow descending fixing device comprises an elliptical wheel disc, the elliptical wheel disc is movably mounted on the right surface of the pressing plate lock catch, and fixing frames are fixedly mounted at the front end and the rear end of the right surface of the elliptical wheel disc.

The technical scheme of the invention is further improved as follows: the descent control device comprises a base, the base is fixedly installed on the right surface of the fixing frame, a machine body is fixedly sleeved on the right surface of the base in a threaded manner, a gland is arranged at the right end of the machine body, and connecting columns are arranged at the front end and the rear end of the left surface of the gland and the front end and the rear end of the right surface of the base.

The technical scheme of the invention is further improved as follows: the utility model discloses a mechanical hand brake device, including base, transmission gear and centrifugal brake gear, base inside surface central point puts movable mounting has drive gear, the meshing has centrifugal brake gear around the drive gear, transmission gear and centrifugal brake gear bottom pivot department fixed mounting have a lower bearing, fuselage inside surface central point puts fixed movable mounting has the rope guide, rope guide center pin and drive gear center pin connection, rope guide right side surface is provided with the clutch blocks, rope guide pivot right-hand member fixed mounting has the upper bearing.

The technical scheme of the invention is further improved as follows: the clamp plate lock catch comprises a positioning plate, a threaded sleeve is fixedly mounted on the left side surface of the positioning plate, a threaded compression post is sleeved on the inner thread of the threaded sleeve, a handle is sleeved on the left side surface of the threaded compression post in a movable mode, a fastening clamp plate is movably mounted at the right end of the threaded compression post, and anti-slip nails are fixedly mounted on the right surface of the fastening clamp plate and the inner right surface of the positioning plate.

The technical scheme of the invention is further improved as follows: the suspension lock catch comprises a rotary lock cylinder which is fixedly arranged at the right end of the threaded compression cylinder, a fixed hook is movably arranged at the left end of the rotary lock cylinder, and a fixed threaded lock catch is sleeved at the opening of the fixed hook in a threaded manner.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a descent control device for fire fighting, which is additionally provided with a pressing plate lock catch, if a suspensible fence or pipeline exists in the use process of the descent control device, the fixed hook in the hanging padlock can be hung on the hanging padlock and the opening of the fixed hook is fixed by the fixed thread lock catch, when no device for hanging is available, the clamp plate can be locked and fixed on walls such as windowsills, balconies, doorways and the like, the positioning plate is clamped into the walls, then the threaded compression posts are rotated by the handles to tightly press the fastening clamp plate against the walls, the friction force is increased by the anti-skid nails, so that the fixation is more stable, the descent control device can be used in various places and environments by the matching use of the pressure plate lock catch and the hanging lock catch, the application range of the descent control device is enlarged, meanwhile, the stability of fixing the descent control device can be ensured, and the descent control device is prevented from falling off due to the fact that the descent control device is fixed on an unstable pipeline or a fence under the condition that the descent control device is not fixed.

2. The invention provides a descent control device for fire fighting, which is additionally provided with a personnel fixing device, a double retarder and a positioning column, wherein personnel can be stably fixed in the personnel fixing device, so that the descent control device is convenient for old people and children to use, meanwhile, the double steel cables and the positioning column in the double retarder can keep balance through the positioning column when the personnel descend, and the phenomenon that a single steel cable is wound and shaken when descending is avoided, so that the whole descending process is more stable, and the descending process cannot be interrupted due to shaking or winding in midway.

3. The invention provides a descent control device for fire fighting, which is improved by adding a centrifugal brake gear on the bottom surface of the descent control device, wherein when the descent control device descends too fast, the rotation of a rope guide is accelerated, the rotation speed of a transmission gear is accelerated, the rotation speed of the centrifugal brake gear is accelerated, so that the centrifugal force is increased, the centrifugal brake gear can move and extrude towards the direction of a base by the centrifugal force, the friction force is increased and is counteracted on the transmission gear, and the rotation speed of the transmission gear is reduced.

4. The invention provides a descent control device for fire fighting, which is additionally provided with a positioning lock and a plurality of lock holes, wherein a split ring in the positioning lock penetrates through a steel cable and drives a semicircular lock plate to fix the semicircular lock plate on the steel cable through a lock column, so that the positioning column does not slide relatively during balance adjustment, and meanwhile, a sliding-assisting roller can ensure that the device can slide smoothly when contacting with a wall surface in the descending process, so that friction between the wall surface and descending personnel can not be excessively generated, the descending safety is ensured, the device can simultaneously bear a plurality of personnel to descend together by matching the plurality of lock holes with a personnel fixing device, the time required by the steel cable to move back and forth is saved, and the success rate of rescue.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the lifting device of the present invention;

FIG. 3 is a schematic structural view of a descent control device and an apparatus fixing device according to the present invention;

FIG. 4 is a schematic view of the connecting device of the present invention;

FIG. 5 is a schematic view of a positioning lock according to the present invention;

FIG. 6 is a schematic view of a descent control device according to the present invention;

FIG. 7 is a schematic view of a base structure of the present invention;

fig. 8 is a schematic view of the fuselage structure of the present invention.

In the figure: 1. a steel cable recovery wheel; 2. a lifting device; 21. a steel cord; 22. a personnel securing device; 23. a positioning device; 211. a lock hole; 221. shoulder straps; 222. a chest strap; 223. a leg strap; 224. a connecting device; 2241. a connecting ring; 2242. hanging and buckling; 2243. moving the threaded lock catch; 231. a positioning column; 232. a positioning lock; 2321. a split ring; 2322. a lock cylinder; 2323. a semicircular locking plate; 2324. a sliding-assisting roller;

3. a slow descending device; 31. a slow descending fixing device; 32. a descent control device; 311. an elliptical wheel disc; 312. a fixed mount; 321. a base; 322. a body; 323. a gland; 324. connecting columns; 3211. a transmission gear; 3212. a centrifugal brake gear; 3213. a lower bearing; 3221. a rope guide; 3222. a friction block; 3223. an upper bearing;

4. a device fixing means; 41. locking the pressing plate; 42. hanging the lock catch; 411. positioning a plate; 412. a threaded sleeve; 413. pressing the column with the screw thread; 414. a handle; 415. fastening a pressure plate; 416. anti-skid nails; 421. rotating the lock cylinder; 422. fixing the hook; 423. and fixing the threaded lock catch.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-8, the invention provides a descent control device for fire protection, which comprises a steel cable recovery wheel 1, wherein the inner surface of the steel cable recovery wheel 1 is movably connected with a lifting device 2, the lifting device 2 comprises a steel cable 21, the outer surface of the steel cable 21 is movably connected with a descent control device 3, and the left side surface of the descent control device 3 is movably connected with an equipment fixing device 4.

In this embodiment, the wire rope withdrawing wheel 1 is used for centralized collection of the wire rope 21, the lifting device 2 is used for fixing and descending of a user, the slow descending device 3 is used for speed control in the descending process, mainly speed reduction, and the equipment fixing device 4 is used for fixing the whole equipment.

As shown in fig. 1-8, in this embodiment, preferably, the lifting device 2 further includes a personnel fixing device 22, a lock hole 211 is formed on the surface of the steel cable 21, the personnel fixing device 22 is fixedly and movably hung in the lock hole 211, a positioning device 23 is fixedly installed on the surface of the steel cable 21 and on the left side of the personnel fixing device 22, the descent control device 3 includes a descent control device 32, the steel cable 21 passes through the inside of the descent control device 32, the descent control device 31 is fixedly connected to the left side surface of the descent control device 32, the equipment fixing device 4 includes a press plate latch 41, the press plate latch 41 is movably installed on the left side surface of the descent control device 31, a hanging latch 42 is fixedly installed at the left end of the press plate latch 41, the personnel fixing device 22 is used for fixing personnel, the steel cable 21 is one of the main force-bearing devices during the descent process, the personnel fixing device 22 is installed, the positioning device 23 is mainly used for balance maintenance of the device, the descent control device 32 is used for speed regulation in the descending process, the descent control fixing device 31 is used for fixing the descent control device 32, the pressing plate lock catch 41 is mainly used for fixing equipment on a wall, and the hanging lock catch 42 is mainly used for fixing the equipment on a pipeline or a fence.

As shown in fig. 1 to 8, preferably, the slow descending fixing device 31 includes an elliptical wheel disc 311, the elliptical wheel disc 311 is movably mounted on the right surface of the pressing plate lock catch 41, fixing frames 312 are fixedly mounted at the front and rear ends of the right surface of the elliptical wheel disc 311, the elliptical wheel disc 311 can rotate on the pressing plate lock catch 41, the direction of the whole slow descending device 3 can be adjusted, it is ensured that the slow descending device 3 is always parallel to the ground, and the fixing frames 312 are used for fixing the slow descending device 32.

Example 2

As shown in fig. 1 to 8, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the personnel fixing device 22 includes a shoulder strap 221, a chest strap 222 is fixedly connected to the middle portion of the shoulder strap 221, a leg strap 223 is fixedly connected to the lower end of the shoulder strap 221, connecting devices 224 are fixedly installed on the left and right sides of the surface of the chest strap 222, each connecting device 224 includes a connecting ring 2241, each connecting ring 2241 is fixedly installed on the surface of the chest strap 222, a hanging buckle 2242 is movably installed in each connecting ring 2241, a movable threaded buckle 2243 is sleeved at an opening of each hanging buckle 2242 in a threaded manner, each positioning device 23 includes a positioning lock 232, each positioning lock 232 is fixedly connected to the outer surface of the steel cable 21, a positioning post 231 is fixedly installed at the upper end of each positioning lock 232, each positioning lock 232 includes a split ring 2321, each split ring 2321 is fixedly installed on the lower surface of each positioning post 231 and is located on the outer surface of the steel cable 21, a locking post 2322 is sleeved on the right, the connecting device 224 can connect the personnel fixing device 22 with the steel cable 21 through the matching between the lock hole 211 and the hanging buckle 2242, and fix the hanging buckle 2242 through the movable threaded lock buckle 2243, the shoulder strap 221, the chest strap 222 and the leg strap 223 are matched to stably fix personnel therein, which is convenient for old people and children to use, the split ring 2321 in the positioning lock 232 passes through the steel cable 21 and drives the semicircular locking plate 2323 to fix the semi-circular locking plate on the steel cable 21 through the lock column 2322, so that the relative sliding between the positioning column 231 and the steel cable 21 in the descending process is avoided, meanwhile, in the descending process, the balance degree of the device can be adjusted through the positioning column 231, the device is prevented from shaking and winding, the sliding-assisting roller 2324 can enable the device to smoothly slide when contacting with the wall surface in the descending process, the friction between the wall surface and descending personnel is not excessively generated, and the descending safety is ensured.

Example 3

As shown in fig. 1 to 8, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the pressing plate lock catch 41 comprises a positioning plate 411, a threaded sleeve 412 is fixedly installed on the left side surface of the positioning plate 411, a threaded pressing column 413 is sleeved on the inner thread of the threaded sleeve 412, a handle 414 is movably sleeved on the left side surface of the threaded pressing column 413, a fastening pressing plate 415 is movably installed on the right end of the threaded pressing column 413, a non-slip nail 416 is fixedly installed on the right surface of the fastening pressing plate 415 and the inner right surface of the positioning plate 411, the hanging lock catch 42 comprises a rotary lock column 421, the rotary lock column 421 is fixedly installed on the right end of the threaded pressing column 413, a fixed hook 422 is movably installed at the left end of the rotary lock column 421, a fixed threaded lock catch 423 is sleeved on the opening of the fixed hook 422 through a thread, if a suspensible fence or pipeline exists in the use process of the descent control device 32, the fixed hook 422 in the hanging lock catch 42 can be hung on the fixed threaded lock catch, the pressing plate lock 41 can be fixed on walls such as windowsills or balconies, doorways and the like, the positioning plate 411 is clamped into the walls, then the threaded compression posts 413 are rotated through the handles 414, the fastening pressing plate 415 is compressed on the walls, and the friction force is increased through the anti-skid nails 416, so that the fixation is more stable.

Example 4

As shown in fig. 1 to 8, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the descent control device 32 comprises a base 321, the base 321 is fixedly installed on the right surface of the fixed frame 312, the right surface of the base 321 is fixedly threaded and sleeved with a body 322, the right end of the body 322 is provided with a gland 323, the left surface of the gland 323 and the front and rear ends of the right surface of the base 321 are provided with connecting posts 324, the center position of the inner surface of the base 321 is movably installed with a transmission gear 3211, a centrifugal brake gear 3212 is engaged around the transmission gear 3211, a lower bearing 3213 is fixedly installed at the rotating shaft at the bottom of the transmission gear 3211 and the centrifugal brake gear 3212, the center position of the inner surface of the body 322 is fixedly and movably installed with a rope guide 3221, the center shaft of the rope guide 3221 is connected with the center shaft of the transmission gear 3211, the right surface of the rope guide 3221 is provided with a friction block 3222, the right end of the rotating shaft of the rope guide 3221, the rotating speed of the transmission gear 3211 is increased to accelerate the rotating speed of the centrifugal brake gear 3212, centrifugal force is increased, the centrifugal brake gear 3212 is moved and extruded towards the base 321 by centrifugal force, friction force is increased, the friction force counteracts the transmission gear 3211, the rotating speed of the transmission gear 3211 is reduced, meanwhile, when the rotation is accelerated, the friction block 3222 is centrifuged, the friction force between the friction block 3222 and the gland 323 is increased, the friction force counteracts the rope guide 3221, the descending speed is reduced, the lower bearing 3213 and the upper bearing 3223 both play a role in lubricating and rotating in the process, and the connecting column 324 is used for fixing the base 321 and the gland 323.

The working principle of the descent control device for fire protection is described in detail below.

As shown in fig. 1-8, when in fixation, if there is a suspensible fence or pipe, the fixed hook 422 in the suspension latch 42 can be hung on it, the fixed threaded latch 423 can fix the opening of the fixed hook 422, when there is no suspensible device, the press plate latch 41 can be fixed on a wall such as a windowsill, a balcony, a doorway, etc., the positioning plate 411 is clamped into the wall, and then the fastening press plate 415 is pressed against the wall by rotating the threaded compression column 413 through the handle 414;

as shown in fig. 1-8, during speed control, after a person is fixed in the personal fixing device 22, the person starts to descend, when the person descends too fast, the rotation of the rope guide 3221 is accelerated, and at the same time, the rotation speed of the transmission gear 3211 is accelerated, so that the rotation speed of the centrifugal brake gear 3212 is accelerated, the centrifugal force is increased, the centrifugal force enables the centrifugal brake gear 3212 to move and extrude towards the base 321, so as to increase the friction force, the friction force counteracts the transmission gear 3211, so as to reduce the rotation speed of the transmission gear 3211, and meanwhile, when the person rotates fast, the friction block 3222 is centrifuged, so that the friction force between the friction block 3222 and the gland 323 is increased, so that the friction force counteracts the rope guide 322.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a ware slowly falls in fire control, includes cable wire recovery wheel (1), its characterized in that: the inner surface of the steel cable recovery wheel (1) is movably connected with a lifting device (2), the lifting device (2) comprises a steel cable (21), the outer surface of the steel cable (21) is movably connected with a slow descending device (3), and the left side surface of the slow descending device (3) is movably connected with an equipment fixing device (4);

the lifting device (2) further comprises a personnel fixing device (22), a lock hole (211) is formed in the surface of the steel cable (21), the personnel fixing device (22) is fixedly and movably hung in the lock hole (211), and a positioning device (23) is fixedly arranged on the surface of the steel cable (21) and on the left side of the personnel fixing device (22);

the slow descending device (3) comprises a slow descending device (32), the steel cable (21) penetrates through the interior of the slow descending device (32), and a slow descending fixing device (31) is fixedly connected to the left side surface of the slow descending device (32);

the equipment fixing device (4) comprises a pressing plate lock catch (41), the pressing plate lock catch (41) is movably installed on the left side surface of the slow descending fixing device (31), and a hanging lock catch (42) is fixedly installed at the left end of the pressing plate lock catch (41).

2. A descent control device for fire protection as defined in claim 1, wherein: the personnel fixing device (22) comprises a shoulder belt (221), a chest strap (222) is fixedly connected to the middle portion of the shoulder belt (221), a leg strap (223) is fixedly connected to the lower end of the shoulder belt (221), and connecting devices (224) are fixedly mounted on the left side and the right side of the surface of the chest strap (222).

3. A descent control device for fire protection as defined in claim 2, wherein: connecting device (224) including go-between (2241), go-between (2241) fixed mounting is on pectoral girdle (222) surface, movable mounting has in go-between (2241) hangs knot (2242), it has removed screw thread hasp (2243) to hang knot (2242) opening part screw thread cover.

4. A descent control device for fire protection as defined in claim 1, wherein: the positioning device (23) comprises a positioning lock (232), the positioning lock (232) is fixedly connected to the outer surface of the steel cable (21), a positioning column (231) is fixedly mounted at the upper end of the positioning lock (232), the positioning lock (232) comprises a split ring (2321), the split ring (2321) is fixedly mounted on the lower surface of the positioning column (231) and on the outer surface of the steel cable (21), a lock column (2322) is sleeved on the right side face of the split ring (2321) in a threaded manner, a semicircular lock plate (2323) is movably connected to the left end of the lock column (2322), and a sliding assisting roller (2324) is arranged on the left side surface of the split ring (2321).

5. A descent control device for fire protection as defined in claim 1, wherein: slowly fall fixing device (31) including oval rim plate (311), oval rim plate (311) movable mounting is in clamp plate hasp (41) right surface, both ends fixed mounting has mount (312) around oval rim plate (311) right surface.

6. A descent control device for fire protection as defined in claim 1, wherein: descent control device (32) is including base (321), base (321) fixed mounting is in mount (312) right side surface, fuselage (322) have been cup jointed to base (321) right side fixed surface screw thread, fuselage (322) right-hand member is provided with gland (323), both ends are provided with spliced pole (324) around gland (323) left side surface and base (321) right side surface.

7. A descent control device for fire protection as defined in claim 6, wherein: drive gear (3211) is movably mounted at the center of the inner surface of base (321), centrifugal brake gear (3212) is engaged with around drive gear (3211), lower bearing (3213) is fixedly mounted at the bottom rotating shaft of drive gear (3211) and centrifugal brake gear (3212), rope guider (3221) is fixedly and movably mounted at the center of the inner surface of body (322), the center shaft of rope guider (3221) is connected with the center shaft of drive gear (3211), friction block (3222) is arranged on the right surface of rope guider (3221), and upper bearing (3223) is fixedly mounted at the right end of the rotating shaft of rope guider (3221).

8. A descent control device for fire protection as defined in claim 1, wherein: the clamp plate lock catch (41) comprises a positioning plate (411), a threaded sleeve (412) is fixedly mounted on the left side surface of the positioning plate (411), a threaded pressing column (413) is sleeved on the inner thread of the threaded sleeve (412), a handle (414) is sleeved on the left side surface of the threaded pressing column (413), a fastening clamp plate (415) is movably mounted at the right end of the threaded pressing column (413), and anti-slip nails (416) are fixedly mounted on the right surface of the fastening clamp plate (415) and the inner right surface of the positioning plate (411).

9. A descent control device for fire protection as defined in claim 1, wherein: hang hasp (42) including rotatory lock post (421), rotatory lock post (421) fixed mounting is in screw thread compression leg (413) right-hand member, rotatory lock post (421) left end movable mounting has fixed couple (422), fixed screw thread hasp (423) has been cup jointed to fixed couple (422) opening part screw thread.