CN214527495U

CN214527495U - Household elevator speed limiter

Info

Publication number: CN214527495U
Application number: CN202120750460.1U
Authority: CN
Inventors: 林海; 邬郑楠
Original assignee: Ningbo Beilun Haixin Machinery Co ltd
Current assignee: Ningbo Beilun Haixin Machinery Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-10-29
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a household elevator speed limiter, which consists of a frame component, a rope wheel component and a ratchet wheel component; the rack assembly comprises a first base, a second base and a rope blocking plate, the first base is fixed with the bottom of the second base and is in a U shape after being fixed, and the rope blocking plate is fixed between the first base and the second base; the rope wheel assembly comprises a main shaft, a main wheel and a centrifugal part, the main shaft is fixed between the first base and the second base, the main wheel is rotatably connected to the main shaft, and the centrifugal part is arranged on the main wheel; the ratchet wheel assembly comprises a ratchet wheel, a limiting torsion spring, a remote control part and a power-off control part, the ratchet wheel is rotatably connected to the main shaft and located in front of the main wheel, and the limiting torsion spring is sleeved on the main shaft. The utility model discloses, possess small and safe and reliable's advantage, solved the problem of proposing in the background art.

Description

Household elevator speed limiter

Technical Field

The utility model relates to an elevator technical field specifically is a home use elevator overspeed governor.

Background

Elevators are used as vertical transportation means of modern high-rise buildings and are closely related to the life of each person. While the aging phenomenon is becoming more and more normal, the home elevator becomes a new blue sea for the industry development. Public data show that the home elevator enters the domestic market from 2001, and through 20 years of development, China currently becomes the largest new home elevator market in the world.

At present, the Chinese is still a 'waste zone' in the aspect of research and development. It is understood that in the domestic home elevator market field, high-end brands are occupied by a few international top-level brands such as Ruiteke, middle-end and low-end markets are divided by hundreds of small and medium-sized brands in different areas, and only 5 to 6 enterprises with national brand forms really exist, which means that the domestic home elevator market field will meet one large adjustment and shuffling in the future.

Most of the design concepts of the household elevators on the market are set paths for changing the commercial elevators into small ones, and various accessories and parts still adopt the supply chains of the commercial elevators, so that the artistic aesthetic feeling is difficult to show. And along with the continuous improvement of living standard, the requirement of consumers to the home environment is gradually upgraded, the household ladder is required to be light and small, and is safe and comfortable, so the safety part speed limiter of the household ladder also needs small volume, safety and reliability. In view of this, the utility model provides a home use elevator overspeed governor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a home use elevator overspeed governor possesses little volume and safe and reliable's advantage, has solved the problem of proposing in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a household elevator speed limiter is composed of a rack assembly, a rope pulley assembly and a ratchet assembly;

the rack assembly comprises a first base, a second base and a rope blocking plate, the first base is fixed with the bottom of the second base and is in a U shape after being fixed, and the rope blocking plate is fixed between the first base and the second base;

the rope wheel assembly comprises a main shaft, a main wheel and a centrifugal part, the main shaft is fixed between the first base and the second base, the main wheel is rotatably connected to the main shaft, and the centrifugal part is arranged on the main wheel;

the ratchet wheel assembly comprises a ratchet wheel, a limiting torsion spring, a remote control component and a power-off control component, wherein the ratchet wheel is rotatably connected to the main shaft and located in front of the main wheel, the limiting torsion spring is sleeved on the main shaft and located in front of the ratchet wheel, and the remote control component and the power-off control component are respectively arranged at the upper end and the lower end of the ratchet wheel.

Preferably, a dust cover is fixed on the top of the second base.

Preferably, the centrifugal part includes centrifugal hammer, lower centrifugal hammer, connecting rod, spring link plate, speed governing spring, go up centrifugal hammer with lower centrifugal hammer rotates respectively to be connected on the leading wheel, the connecting rod rotates to be connected go up centrifugal hammer with between the centrifugal hammer down, the spring link plate passes through the adjusting part setting and is in on the leading wheel, the upper end of speed governing spring with the spring link plate articulates, the lower extreme of speed governing spring with lower centrifugal hammer articulates.

Preferably, the adjusting part comprises an adjusting bolt, the adjusting bolt is rotatably connected to the main wheel, and one end of the adjusting bolt is further in threaded connection with the spring hanging plate.

Preferably, the remote control part includes installing support, solenoid valve switch, clamp plate, spring, the installing support is fixed on the ratchet, the solenoid valve switch is fixed on the installing support, the last trigger that has of solenoid valve switch, the pot head of clamp plate is in on the trigger, the other end of clamp plate has the opening, and this opening runs through the upper end of ratchet, the spring housing is in on the trigger.

Preferably, the power-off control part comprises a travel switch, a V-shaped block and a trigger block, the travel switch is fixed to the first base, a second trigger is arranged on the travel switch, a V-shaped groove is formed in the lower end of the ratchet wheel, the V-shaped block is arranged in the V-shaped groove, the middle of the trigger block is rotatably connected to the travel switch, one end of the trigger block is rotatably connected to the V-shaped block, and the other end of the trigger block is in contact with the second trigger.

Preferably, the travel switch is electrically connected to a hoisting machine of the elevator.

Preferably, a waist-shaped groove is formed in the surface, close to the lower end, of the ratchet wheel, a limiting bolt is fixed to the first base, and the rear end of the limiting bolt penetrates into the waist-shaped groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. when the cage (or the counterweight) descends and exceeds the speed of contact action in an overspeed mode, the upper centrifugal hammer and the lower centrifugal hammer are thrown away and hit the ratchet wheel, so that the ratchet wheel deflects, the V-shaped block jacks up the trigger block, and the trigger block triggers the travel switch, so that the tractor is powered off and stops running. With the deceleration of the main wheel, the rope groove of the main wheel is V-shaped, and after the speed limiter acts, the steel wire rope is round and is clamped more and more tightly in the rope groove, and the steel wire rope is gradually braked by the friction force of the steel wire rope and the rope groove.

2. When the installation test and maintenance are carried out and accidents occur, the speed limiter can be triggered manually, the electromagnetic valve switch is remotely controlled to act under the condition that the maximum speed is not exceeded, the pressing plate moves downwards, the upper centrifugal hammer and the lower centrifugal hammer are thrown away and hit on the pressing plate, so that the ratchet wheel deflects, the V-shaped block jacks up the trigger block, and the trigger block triggers the travel switch, so that the tractor is powered off and stops running.

3. The speed limiter has low rated speed and can meet the requirement of low running speed of the household elevator.

4. Compared with the prior art, the novel electric water heater has the advantages of small size and high safety and reliability.

Drawings

Fig. 1 is a perspective view of the speed limiter of the present invention;

fig. 2 is a side view of the governor of the present invention;

fig. 3 is a perspective view of the second trigger of the travel switch of the present invention contacting with the trigger block;

FIG. 4 is a perspective view of the pressure plate of the present invention with the notch extending through the upper end of the ratchet;

FIG. 5 is a front view of the ratchet of the present invention;

fig. 6 is a perspective view of the upper centrifugal hammer and the lower centrifugal hammer of the present invention.

In the figure: 1. a first base; 2. a second base; 3. a rope blocking plate; 4. a main shaft; 5. a main wheel; 6. a ratchet wheel; 7. a limiting torsion spring; 8. a dust cover; 9. an upper centrifugal hammer; 10. a lower centrifugal hammer; 11. a connecting rod; 12. a spring hanging plate; 13. a speed regulating spring; 14. adjusting the bolt; 15. mounting a bracket; 16. a solenoid valve switch; 17. pressing a plate; 18. a spring; 19. a travel switch; 20. a V-shaped block; 21. a trigger block; 22. a first trigger; 23. a second trigger; 24. and a limiting bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a household elevator speed limiter is composed of a frame assembly, a rope pulley assembly and a ratchet wheel assembly.

The rack assembly comprises a first base 1, a second base 2 and a rope baffle 3, wherein the first base 1 is fixed with the bottom of the second base 2 and is U-shaped after being fixed, the rope baffle 3 is fixed between the first base 1 and the second base 2, and the rope baffle 3 is used for blocking a steel wire rope and preventing the steel wire rope from being out of position.

The rope sheave assembly comprises a main shaft 4, a main wheel 5 and a centrifugal part, wherein the main shaft 4 is fixed between a first base 1 and a second base 2, the main wheel 5 is rotatably connected to the main shaft 4, a rope groove of the main wheel 5 is V-shaped, and after the speed limiter acts, a steel wire rope is round and can be clamped more and more tightly in the rope groove and gradually braked by the friction force of the steel wire rope and the rope groove.

The centrifugal part is arranged on the main wheel 5. The centrifugal part comprises an upper centrifugal hammer 9, a lower centrifugal hammer 10, a connecting rod 11, a spring hanging plate 12 and a speed regulating spring 13, wherein the upper centrifugal hammer 9 and the lower centrifugal hammer 10 are respectively rotatably connected to the main wheel 5, the connecting rod 11 is rotatably connected between the upper centrifugal hammer 9 and the lower centrifugal hammer 10, the spring hanging plate 12 is arranged on the main wheel 5 through a regulating part, the upper end of the speed regulating spring 13 is hung on the spring hanging plate 12, and the lower end of the speed regulating spring 13 is hung on the lower centrifugal hammer 10; when the cage moves, the main wheel 5 rotates, the cage moves fast, the centrifugal deviation of the upper centrifugal hammer 9 and the lower centrifugal hammer 10 is easy to occur as the rotating speed of the main wheel 5 is higher, and the upper centrifugal hammer 9 and the lower centrifugal hammer 10 are promoted to restore due to the elastic force of the speed regulating spring 13 after the rotating speed of the main wheel 5 is reduced until the stop.

The adjusting part comprises an adjusting bolt 14, the adjusting bolt 14 is rotatably connected to the main wheel 5, and one end of the adjusting bolt is in threaded connection with the spring hanging plate 12; the rotary connection can be realized in such a way that: 1 bearing is fixed on the main wheel 5, and the adjusting bolt 14 is tightly sleeved with the bearing, so that the adjusting bolt 14 can rotate in place. After the adjusting bolt 14 rotates clockwise, the spring hanging plate 12 moves towards the direction close to the lower centrifugal hammer 10, at the moment, the force required for overcoming the speed regulating spring 13 is smaller when the lower centrifugal hammer 10 rotates along with the main wheel 5 to deviate, after the adjusting bolt 14 rotates reversely, the spring hanging plate 12 moves towards the direction departing from the lower centrifugal hammer 10, at the moment, the force required for overcoming the speed regulating spring 13 is larger when the lower centrifugal hammer 10 rotates along with the main wheel 5 to deviate, and through the adjusting mode, the sensitivity of the upper centrifugal hammer 9 and the sensitivity of the lower centrifugal hammer 10 are adjusted.

The ratchet wheel subassembly includes ratchet 6, spacing torsional spring 7, remote control part, the outage control part, ratchet 6 rotates to be connected on main shaft 4, and be located the place ahead of main wheel 5, spacing torsional spring 7 cover is on main shaft 4, and be located the place ahead of ratchet 6, the shape of ratchet 6 is shown in the figure, 3 convex pawls have on the ratchet 6, after last centrifugal hammer 9 takes place to deflect with lower centrifugal hammer 10, hit and beat on the pawl, impel ratchet 6 to rotate, after last centrifugal hammer 9 recovers gradually with lower centrifugal hammer 10, ratchet 6 recovers under spacing torsional spring 7's torsion effect.

The remote control component and the power-off control component are respectively arranged at the upper end and the lower end of the ratchet wheel 6.

The power-off control component comprises a travel switch 19, a V-shaped block 20 and a trigger block 21, the travel switch 19 is fixed on a base I1, a second trigger 23 is arranged on the travel switch 19, a V-shaped groove is formed in the lower end of a ratchet 6, the V-shaped block 20 is arranged in the V-shaped groove, the middle of the trigger block 21 is rotatably connected to the travel switch 19, one end of the trigger block 21 is rotatably connected with the V-shaped block 20, the other end of the trigger block 21 is in contact with the second trigger 23, as can be seen from the above, when the ratchet 6 rotates to jack up the V-shaped block 20, the trigger block 21 touches the second trigger 23, the travel switch 19 acts, and the travel switch 19 is electrically connected with a tractor of an elevator to power off and stop running. When the cage suddenly descends, and when the descending overspeed of the cage (or the counterweight) reaches the contact action speed, the upper centrifugal hammer 9 and the lower centrifugal hammer 10 are thrown away and impact on the ratchet wheel 6, so that the ratchet wheel 6 deflects, the V-shaped block 20 jacks up the trigger block 21, the trigger block 21 triggers the travel switch 19, and the traction machine is powered off and stops running. As the main wheel 5 slows down, the rope groove of the main wheel 5 is V-shaped, and after the governor is operated, the wire rope is round and becomes tighter and tighter in the rope groove, and braking and stopping are gradually performed by the friction force between the wire rope and the rope groove.

The surface of the ratchet wheel 6 close to the lower end is provided with a waist-shaped groove, the first base 1 is fixed with a limiting bolt 24, the rear end of the limiting bolt 24 penetrates into the waist-shaped groove, and the ratchet wheel 6 is prevented from excessively deflecting through the cooperation of the waist-shaped groove and the limiting bolt 24.

The remote control component comprises a mounting bracket 15, an electromagnetic valve switch 16, a pressure plate 17 and a spring 18, the mounting bracket 15 is fixed on the ratchet wheel 6, the electromagnetic valve switch 16 is fixed on the mounting bracket 15, the electromagnetic valve switch 16 is provided with a first trigger 22, one end of the pressure plate 17 is sleeved on the first trigger 22, the other end of the pressure plate 17 is provided with a notch, the notch penetrates through the upper end of the ratchet wheel 6, and the spring 18 is sleeved on the first trigger 22; the electromagnetic valve switch 16 is connected with a remote control device, when the installation test and maintenance are carried out and accidents occur, a manual speed limiter can be triggered, under the condition that the maximum speed is not exceeded, the electromagnetic valve switch 16 is remotely controlled to act, the pressing plate 17 moves downwards and is lower than a pawl of the ratchet 6, when the upper centrifugal hammer 9 and the lower centrifugal hammer 10 are not thrown away completely, the upper centrifugal hammer and the lower centrifugal hammer can directly hit the pawl, the ratchet 6 deflects, the V-shaped block 20 jacks up the trigger block 21, and the trigger block 21 triggers the travel switch 19, so that the tractor is powered off and stops running.

And a dust cover 8 is fixed at the top of the second base 2 and plays a role in blocking dust.

It is worth mentioning that the car can only operate in one direction to realize the above mentioned functions, and is suitable for the car application scene of one-way operation.

The working principle is as follows: when the household elevator speed limiter is used,

1. when the speed limiter is manually triggered during installation, test, maintenance and accidents, the action of the electromagnetic valve switch 16 is remotely controlled under the condition that the maximum speed is not exceeded, the pressure plate 17 moves downwards and is lower than the pawl of the ratchet 6, and when the upper centrifugal hammer 9 and the lower centrifugal hammer 10 are not completely thrown away, the upper centrifugal hammer and the lower centrifugal hammer directly hit the pawl, so that the ratchet 6 deflects, the V-shaped block 20 jacks up the trigger block 21, and the trigger block 21 triggers the travel switch 19, so that the tractor is powered off and stops running. As the main wheel 5 slows down, the rope groove of the main wheel 5 is V-shaped, and after the governor is operated, the wire rope is round and becomes tighter and tighter in the rope groove, and braking and stopping are gradually performed by the friction force between the wire rope and the rope groove.

2. When the cage (or the counterweight) descends and exceeds the speed of contact action in an overspeed mode, the upper centrifugal hammer 9 and the lower centrifugal hammer 10 are thrown away and hit on the ratchet wheel 6, so that the ratchet wheel 6 deflects, the V-shaped block 20 jacks up the trigger block 21, and the trigger block 21 triggers the travel switch 19, so that the tractor is powered off and stops running. As the main wheel 5 slows down, the rope groove of the main wheel 5 is V-shaped, and after the governor is operated, the wire rope is round and becomes tighter and tighter in the rope groove, and braking and stopping are gradually performed by the friction force between the wire rope and the rope groove.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a home use elevator overspeed governor which characterized in that: the speed limiter is respectively composed of a frame assembly, a rope pulley assembly and a ratchet wheel assembly;

the rack assembly comprises a first base (1), a second base (2) and a rope baffle plate (3), the first base (1) is fixed with the bottom of the second base (2) and is U-shaped after being fixed, and the rope baffle plate (3) is fixed between the first base (1) and the second base (2);

the rope wheel assembly comprises a main shaft (4), a main wheel (5) and a centrifugal part, wherein the main shaft (4) is fixed between the first base (1) and the second base (2), the main wheel (5) is rotatably connected to the main shaft (4), and the centrifugal part is arranged on the main wheel (5);

ratchet subassembly includes ratchet (6), spacing torsional spring (7), remote control part, outage control part, ratchet (6) rotate to be connected on main shaft (4), and be located the place ahead of main wheel (5), spacing torsional spring (7) cover is in on main shaft (4), and be located the place ahead of ratchet (6), remote control part outage control part sets up respectively the upper end and the lower extreme of ratchet (6).

2. The home elevator governor of claim 1, wherein: and a dust cover (8) is fixed at the top of the second base (2).

3. The home elevator governor of claim 1, wherein: the centrifugal part includes centrifugal hammer (9), lower centrifugal hammer (10), connecting rod (11), spring link plate (12), speed governing spring (13), go up centrifugal hammer (9) with lower centrifugal hammer (10) rotate respectively to be connected on leading wheel (5), connecting rod (11) rotate to be connected go up centrifugal hammer (9) with between lower centrifugal hammer (10), spring link plate (12) are in through adjusting part setting on leading wheel (5), the upper end of speed governing spring (13) with spring link plate (12) articulate, the lower extreme of speed governing spring (13) with lower centrifugal hammer (10) articulate.

4. The home elevator governor of claim 3, wherein: the adjusting part comprises an adjusting bolt (14), the adjusting bolt (14) is rotatably connected to the main wheel (5), and one end of the adjusting bolt is in threaded connection with the spring hanging plate (12).

5. The home elevator governor of claim 1, wherein: the remote control part comprises a mounting support (15), an electromagnetic valve switch (16), a pressing plate (17) and a spring (18), the mounting support (15) is fixed on the ratchet wheel (6), the electromagnetic valve switch (16) is fixed on the mounting support (15), a first trigger (22) is arranged on the electromagnetic valve switch (16), one end of the pressing plate (17) is sleeved on the first trigger (22), the other end of the pressing plate (17) is provided with an opening, the opening penetrates through the upper end of the ratchet wheel (6), and the spring (18) is sleeved on the first trigger (22).

6. The home elevator governor of claim 5, wherein: outage control part includes travel switch (19), V type piece (20), trigger block (21), travel switch (19) are fixed on base (1), travel switch (19) are gone up and are had trigger two (23), V type groove has been seted up to the lower extreme of ratchet (6), V type piece (20) set up in the V type groove, the middle part of trigger block (21) is rotated and is connected on travel switch (19), the one end of trigger block (21) with V type piece (20) are rotated and are connected, the other end of trigger block (21) with trigger two (23) contact.

7. The home elevator governor of claim 6, wherein: the travel switch (19) is electrically connected with a traction machine of the elevator.

8. A home elevator governor according to any of claims 1 to 7, characterized in that: the ratchet wheel (6) is provided with a waist-shaped groove on the surface close to the lower end, a limiting bolt (24) is fixed on the base I (1), and the rear end of the limiting bolt (24) penetrates into the waist-shaped groove.