CN216583649U

CN216583649U - Tensioning device applied to shallow hoistway

Info

Publication number: CN216583649U
Application number: CN202123417566.9U
Authority: CN
Inventors: 梁永锋; 白祖亮
Original assignee: Guangdong Huahui Elevator Components Co ltd
Current assignee: Guangdong Huahui Elevator Components Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-24
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a tensioning device applied to a shallow shaft, which comprises a tensioning assembly, a base and a UKS switch; the tensioning assembly comprises a weight member, a rope wheel and a switch trigger member, the rope wheel is rotatably connected with the weight member, the switch trigger member is arranged on the side wall of the weight member, and the switch trigger member extends to the outer side of the weight member; the side wall of the weight part is connected with the base in a sliding mode, and the weight part slides in the vertical direction on the base; the UKS switch is arranged on the base, the trigger end of the UKS switch faces to a vertical plane where the switch trigger is located, and when the tensioning assembly slides downwards to a trigger position, the switch trigger is in contact with the trigger end of the UKS switch. Be applied to tight device that rises of shallow well has solved current tight device that rises and has not played the effect that detects the elevator and prevent the potential safety hazard, and when wire rope becomes flexible or breaks, the problem of incident appears in the elevator easily.

Description

Tensioning device applied to shallow hoistway

Technical Field

The utility model relates to an elevator technical field, especially a be applied to shallow well tight device that rises.

Background

The main safety protection device of the elevator speed limiter is wound on a rope wheel of the speed limiter and a rope wheel of a tensioning device through a steel wire rope when in use, and is connected with a lifting device of a safety tongs through a steel wire rope head to play a role. The tensioning device provides rope tension for the speed limiter, so that the speed of a steel wire rope on the speed limiter is consistent with the speed of the elevator car in the ascending or descending speed increasing process of the elevator car, and the speed of the elevator car is detected by the speed limiter in real time. When the elevator is overspeed, the speed limiter acts, the speed limiter rope wheel stops rotating, and the steel wire rope on the speed limiter stops acting, so that the steel wire rope is used for lifting the safety tongs, the device is provided with an upward pulling force to link the safety tongs to work, and the lift car is braked and stopped to protect the personal safety of the elevator passenger.

After the steel wire rope of the elevator is used for a long time, the situation of looseness can be avoided, even the situation of fracture can be caused in a serious situation, and at the moment, safety accidents can occur without emergency braking of the elevator.

The installation of the elevator is limited by the building space, i.e. the space of the elevator shaft, the depth of which affects the installation of the tensioning device. The existing tensioning device is difficult to meet the installation requirement.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model aims to provide a be applied to shallow well tight device that rises has solved current tight device that rises and has not played the effect that detects elevator and prevention potential safety hazard, and when wire rope is not hard up or splits, the problem of incident appears easily in the elevator to and solve the installation problem of the shallow well of elevator.

To achieve the purpose, the utility model adopts the following technical proposal: a tensioning device applied to a shallow shaft comprises a tensioning assembly, a base and a UKS switch;

the tensioning assembly comprises a weight member, a rope wheel and a switch trigger member, the rope wheel is rotatably connected with the weight member, the switch trigger member is arranged on the side wall of the weight member, and the switch trigger member extends to the outer side of the weight member;

the side wall of the weight part is connected with the base in a sliding mode, and the weight part slides in the vertical direction on the base;

the UKS switch is arranged on the base, the trigger end of the UKS switch faces to a vertical plane where the switch trigger is located, and when the tensioning assembly slides downwards to a trigger position, the switch trigger is in contact with the trigger end of the UKS switch.

It is worth to say that the weight member comprises two first weight plates, the rope wheel is arranged between the two first weight plates, and the rope wheel is respectively connected with the two first weight plates in a rotating manner;

the switch trigger piece is arranged on one of the first weight plates, and the first weight plate provided with the switch trigger piece is connected with the base in a sliding mode.

Optionally, the weight member further includes a second weight plate, and the second weight plate is disposed between two of the first weight plates and is fixedly connected to the first weight plates.

Specifically, the tensioning assembly further comprises two groups of guide assemblies, wherein the guide assemblies are arranged on the side wall of the counterweight part, and the two groups of guide assemblies are symmetrically positioned on the left side and the right side of the base.

Preferably, the guide assembly comprises a plurality of guide washers, and the guide washers corresponding to the same group of guide assemblies are distributed at intervals in the vertical direction.

It is worth to say that the tensioning assembly further comprises rope blocking plates which are arranged on the left side and the right side of the rope wheel; the rope blocking plate is connected with one of the first balance weight plates and extends towards the other first balance weight plate.

Optionally, the tensioning assembly further comprises a protective cover, and the protective cover is arranged on the upper side of the rope wheel; the protective cover is respectively connected with the two first counterweight plates.

Specifically, the switch trigger piece includes trigger part and guide part, the trigger part with the lateral wall of counterweight is connected, the vertical setting of trigger part, the guide part with the lower extreme of trigger part is connected, the guide part is to deviating the direction of the vertical plane at trigger part place extends, and the guide part is to keeping away from the direction extension of UKS switch.

Preferably, the base includes support plate washer and support bottom plate, the support plate washer with the lateral wall sliding connection of counterweight, the top of support plate washer is equipped with the UKS switch, the bottom of support plate washer with the support bottom plate is connected, the support bottom plate is installed in the bottom of well.

One of the above technical solutions has the following beneficial effects: be applied to among the tight device that rises of shallow well for the wire rope that drives elevator car twine in the rope sheave, during normal use, wire rope is in taut state, thereby passes through the rope sheave is hung the counterweight, and then makes the UKS switch with switch trigger is in the non-contact state, the UKS switch does not act, and the elevator host computer is electrified to be operated this moment. When the steel wire rope is too loose or the steel wire rope is disconnected, the rope wheel loses the upward acting force provided by the steel wire rope, and the weight part drives the whole tensioning assembly to fall down, so that the UKS switch is contacted with the switch trigger part, the UKS switch acts to disconnect the power supply of the elevator main machine, the elevator is emergently braked, the safety accident is avoided, and the elevator can also play roles in detecting the elevator and preventing potential safety hazards.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present invention;

fig. 2 is a front view of the tensioning assembly after falling down in one embodiment of the present invention;

fig. 3 is a front view of the tensioning assembly without dropping in another embodiment of the invention;

wherein: 1, tensioning components; 11 a weight member; 111 a first weight plate; 112 a second weight plate; 12 rope wheels; 13 a switch trigger; 131 a trigger part; 132 a guide portion; 14 a guide assembly; 141 guide washers; 15 rope blocking plates; 16 a shield; 2, a base; 21 a support baffle plate; 22 a support base plate; 3UKS switch.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 1 to 3, a tension device applied to a shallow hoistway according to an embodiment of the present invention is described below, including a tension assembly 1, a base 2, and a UKS switch 3; the tensioning assembly 1 comprises a weight member 11, a rope pulley 12 and a switch trigger member 13, the rope pulley 12 is rotatably connected with the weight member 11, the switch trigger member 13 is arranged on the side wall of the weight member 11, and the switch trigger member 13 extends to the outer side of the weight member 11; the side wall of the weight 11 is connected with the base 2 in a sliding way, and the weight 11 slides in the vertical direction on the base 2; the UKS switch 3 is disposed on the base 2, and a trigger end of the UKS switch 3 faces a vertical plane where the switch trigger 13 is located, and when the tension assembly 1 slides downwards to a trigger position, the switch trigger 13 touches the trigger end of the UKS switch 3. As shown in fig. 1-3, the up-down direction is a vertical direction. In particular, the UKS switch 3 is a switch for elevator stroke and limit, and is an important switch for safety protection of the elevator. The triggering position is a position where the tensioning assembly 1 falls to the bottom when the steel wire rope passing through the rope pulley 12 is too loose or the steel wire rope is disconnected.

Be applied to among the tight device that rises of shallow well for drive elevator car's wire rope twine in rope sheave 12, during normal use, wire rope is in taut state, thereby passes through rope sheave 12 lifts by crane counterweight 11, and then makes UKS switch 3 with switch trigger 13 is in the non-contact state, UKS switch 3 does not act, and the elevator host computer is electrified to be operated this moment. When the steel wire rope is too loose or the steel wire rope is disconnected, the rope pulley 12 loses the upward acting force provided by the steel wire rope, and the whole tensioning assembly 1 is driven to fall under the action of the gravity of the counterweight 11, so that the UKS switch 3 is in contact with the switch trigger 13, the UKS switch 3 acts to disconnect the power supply of a main machine of the elevator, the elevator is emergently braked, safety accidents are avoided, and the elevator can also play roles in detecting the elevator and preventing potential safety hazards. In this embodiment, the tensioning device can provide 35kg of tensioning force, and simple structure, small to can place in the optional position of well, not receive the restriction of elevator well space narrow scheduling problem. The working stroke of the tensioning device is 160mm, and compared with the existing tensioning device arranged on the guide rail, the height of the tensioning device applied to the shallow hoistway in the embodiment is lower, so that the tensioning device is applied to the shallow hoistway and high-rise elevators.

In some embodiments, as shown in fig. 1, the weight member 11 includes two first weight plates 111, the sheave 12 is disposed between the two first weight plates 111, and the sheave 12 is rotatably connected to the two first weight plates 111; the switch trigger 13 is disposed on one of the first weight plates 111, and the first weight plate 111 on which the switch trigger 13 is disposed is slidably connected to the base 2. Thus, the sheave 12 rotates between the two first weight plates 111. Because the two first weight plates 111 have the same weight, the force applied to the rotating shaft of the rope wheel 12 by the weight member 11 is vertically downward, and the rope wheel 12 and the weight member 11 can be prevented from shaking when the rope wheel 12 is lifted by a steel wire rope. In addition, the two first weight plates 111 also play a role in protecting the rope pulley 12, so that the rope pulley 12 is prevented from being damaged due to external collision.

It should be noted that the weight member 11 further includes a second weight plate 112, and the second weight plate 112 is disposed between the two first weight plates 111 and is fixedly connected to the first weight plates 111. It is to be noted that the second weight plate 112 is provided directly below the sheave 12 or directly above the sheave 12. In this way, while the weight of the weight member 11 is increased, it is further ensured that the force applied to the rotation shaft of the sheave 12 by the weight member 11 is directed vertically downward.

Optionally, as shown in fig. 1 to 3, the tensioning assembly 1 further includes two sets of guide assemblies 14, the guide assemblies 14 are disposed on the side wall of the counterweight 11, and the two sets of guide assemblies 14 are symmetrically located on the left and right sides of the base 2. The direction subassembly 14 plays direction and spacing effect, through direction subassembly 14 with base 2 can restrict the weight part 11 horizontal hunting when rising or descending to the restriction tight subassembly 1 horizontal hunting when rising or descending, guarantee tight subassembly 1 can rise or descend along vertical direction, thereby guarantees the trigger end of UKS switch 3 can accurately touch switch trigger piece 13.

Specifically, the guide assembly 14 includes a plurality of guide washers 141, and the guide washers 141 corresponding to the same set of guide assemblies 14 are spaced apart in the vertical direction. Specifically, the number of the guide washers 141 corresponding to each set of the guide assembly 14 is the same, and the distance between two adjacent guide washers 141 in each set of the guide assembly 14 is equal, so as to ensure that the direction and the magnitude of the force applied by the weight member 11 to the left and right sides of the base 2 through the guide washers 141 are the same.

Preferably, the tensioning assembly 1 further comprises rope baffles 15, and the rope baffles 15 are arranged on the left side and the right side of the rope pulley 12; the rope guard 15 is connected to one of the first weight plates 111 and extends in the direction of the other first weight plate 111. The rope stopper 15 plays a role of preventing the wire rope from coming off the sheave groove of the sheave 12. Preferably, the rope blocking plate 15 is an L-shaped structure, one end of the rope blocking plate 15 is fixed to the side wall of one of the first weight plates 111 through a screw, and the other end of the rope blocking plate 15 extends towards the other first weight plate 111.

In some embodiments, the tensioning assembly 1 further comprises a protective cover 16, wherein the protective cover 16 is arranged on the upper side of the rope pulley 12; the protective cover 16 is connected to the two first weight plates 111. The protective cover 16 plays a role in protecting the rope pulley 12, and prevents objects from falling to the rope pulley 12 from the upper part of the tensioning device, so that the rope pulley 12 is blocked. Specifically, the protective cover 16 is connected to the two first weight plates 111 by screws.

It should be noted that, as shown in fig. 2 and 3, the switch trigger 13 includes a trigger portion 131 and a guide portion 132, the trigger portion 131 is connected to a side wall of the weight 11, the trigger portion 131 is disposed vertically, the guide portion 132 is connected to a lower end of the trigger portion 131, the guide portion 132 extends in a direction deviating from a vertical plane in which the trigger portion 131 is located, and the guide portion 132 extends in a direction away from the UKS switch 3. The guide portion 132 plays a role in transition and guide, and when the tensioning assembly 1 falls, the trigger end of the UKS switch 3 first contacts with the guide portion 132, at this time, the guide portion 132 applies the force of the trigger end of the UKS switch 3 to be larger and larger, and when the trigger end of the UKS switch 3 enters the trigger portion 131, the trigger portion 131 applies the force of the trigger end of the UKS switch 3 to be maximum, so that the UKS switch 3 can be effectively triggered.

Optionally, the base 2 includes a support baffle 21 and a support bottom plate 22, the support baffle 21 is connected to the side wall of the counterweight 11 in a sliding manner, the top end of the support baffle 21 is provided with the UKS switch 3, the bottom end of the support baffle 21 is connected to the support bottom plate 22, and the support bottom plate 22 is installed at the bottom of the hoistway. So, support plate washer 21 passes through support bottom plate 22 is installed in the bottom of well to guarantee support plate washer 21 can not follow rise tight subassembly 1 motion, and then guarantee when rising tight subassembly 1 whereabouts, the UKS switch 3 can touch switch trigger piece 13. Specifically, the seat stopper 21 is perpendicular to the seat bottom plate 22.

Other configurations and operations of the tension device applied to the shallow shaft according to the embodiments of the present invention are known to those skilled in the art, and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a be applied to shallow well rises and tightly installs which characterized in that: comprises a tensioning component, a base and a UKS switch;

2. The tension device applied to the shallow shaft according to claim 1, wherein: the counterweight part comprises two first counterweight plates, the rope wheel is arranged between the two first counterweight plates, and the rope wheel is respectively and rotatably connected with the two first counterweight plates;

3. The tension device applied to the shallow hoistway as claimed in claim 2, wherein: the counterweight part also comprises a second counterweight plate which is arranged between the two first counterweight plates and is fixedly connected with the first counterweight plates.

4. The tension device applied to the shallow hoistway as claimed in claim 1, wherein: the tensioning assembly further comprises two groups of guide assemblies, the guide assemblies are arranged on the side walls of the balance weight parts, and the two groups of guide assemblies are symmetrically located on the left side and the right side of the base.

5. The tension device applied to the shallow shaft according to claim 4, wherein: the guide assembly comprises a plurality of guide gaskets, and the guide gaskets corresponding to the same group of guide assemblies are distributed at intervals along the vertical direction.

6. The tension device applied to the shallow shaft according to claim 2, wherein: the tensioning assembly also comprises rope blocking plates which are arranged on the left side and the right side of the rope wheel; the rope blocking plate is connected with one of the first balance weight plates and extends towards the other first balance weight plate.

7. The tension device applied to the shallow shaft according to claim 2, wherein: the tensioning assembly further comprises a protective cover, and the protective cover is arranged on the upper side of the rope wheel; the protective cover is respectively connected with the two first counterweight plates.

8. The tension device applied to the shallow shaft according to claim 1, wherein: the switch trigger piece includes trigger part and guide portion, trigger part with the lateral wall of counterweight is connected, the vertical setting of trigger part, guide portion with the lower extreme of trigger part is connected, the guide portion is to deviating the vertical planar direction extension at trigger part place, and the guide portion is to keeping away from the direction extension of UKS switch.

9. The tension device applied to the shallow shaft according to claim 1, wherein: the base includes support plate washer and support bottom plate, the support plate washer with the lateral wall sliding connection of counterweight, the top of support plate washer is equipped with the UKS switch, the bottom of support plate washer with the support bottom plate is connected, the support bottom plate is installed in the bottom of well.