CN213679342U - Guide rail braking device of household elevator without pit - Google Patents

Abstract

The application discloses a guide rail braking device of a bottomless household elevator, wherein a guide rail in the guide rail braking device is a T-shaped guide rail, and the guide rail is more stably matched with the braking device; one-way spacing subassembly can carry out one-way spacing to triggering the subassembly with the backstop portion that triggers on the subassembly, and when first connecting rod area movable contact sent the subassembly upward movement, backstop portion upward movement thereupon to through spigot surface and spacing face butt, because backstop portion and the butt of spacing face, trigger the subassembly and can continue upward movement and unable downstream, avoided triggering the problem that the subassembly kick-backed, make the locking subassembly more stable to the braking of T type guide rail.

Description

Guide rail braking device of household elevator without pit

Technical Field

The utility model relates to a home use elevator technical field especially relates to guide rail arresting gear of no pit home use elevator.

Background

With the continuous improvement of economic level and the continuous promotion of urbanization and urbanization, the residential form of people develops towards the trend of high-rise buildings and villas. In the construction process of high-rise buildings, elevator shafts can be designed independently, most of the elevators adopt traction type elevators, the elevator shafts have relatively perfect and independent control and operation systems, and the development and application of related technologies are relatively mature; in the low-rise buildings such as villas, the floor height of the villas is generally designed into two or three layers, elevators cannot be designed in most villas, and the whole set of traction type elevators is complex in structure and needs to be provided with a hoistway, so that a large space is occupied, the elevator cannot be installed in most villas in consideration of the problem of space occupation and the cost of the traction type elevators, but in recent years, along with the increase of the aging problem of the population of China, the old people living in the villas and going upstairs and downstairs by stairs are inconvenient, and potential safety hazards exist, so that the market demand for small-sized bottomless household elevators is more and more urgent.

In the prior art, small and medium-sized domestic elevators without pits are generally provided with a vertical guide rail without a shaft between floors, and a driving device of the domestic elevator without pits moves along with a car of the domestic elevator without pits. Specifically, a motor is used for driving a winding drum to wind and unwind two mooring ropes wound on two pulleys to realize the lifting of the household elevator without the pit.

In the use process of the household elevator without the pit, the accident that the mooring rope is broken sometimes occurs, at the moment, the braking device is required to effectively and timely brake the car, and the braking device usually responds to the difference of stress after the mooring rope is broken through one structure, so that the safety tongs are triggered to brake the car.

However, after the braking device in the prior art triggers the safety gear to brake, there is a risk of rebounding, and the safety gear is easy to brake the guide rail to an unexpected effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a guide rail braking device of a household elevator without a pit, wherein the guide rail in the guide rail braking device adopts a T-shaped guide rail, and the guide rail braking device is more stable in matching with the braking device; one-way spacing subassembly can carry out one-way spacing to triggering the subassembly with the backstop portion that triggers on the subassembly, and when first connecting rod drove the subassembly upward movement, backstop portion upward movement thereupon to through spigot surface and spacing face butt, trigger the subassembly and can continue upward movement and unable downstream, avoided triggering the problem that the subassembly kick-backed, make the locking subassembly more stable to the braking of T type guide rail.

In order to achieve the purpose, the utility model provides a guide rail braking device of a household elevator without a pit, which comprises a T-shaped guide rail, wherein the T-shaped guide rail is arranged at two opposite sides of a lift car; the lifting assembly comprises two reversing pulleys arranged on the top of the lift car, a reel and a cable wound on the reel; the two rope blocking wheel assemblies comprise two first connecting rods and rope blocking wheels, one ends of the first connecting rods are rotatably provided with the rope blocking wheels, the other ends of the first connecting rods are hinged to the top of the lift car, the cable extends upwards after reversing from the reversing pulley and is abutted against the rope blocking wheels, and the cable can apply force to the first connecting rods through the rope blocking wheels so that the first connecting rods rotate to a working position or a triggering position; the two locking assemblies are respectively arranged below the rope stopping wheel assembly and fixed on the lift car, and each locking assembly has a first state of abutting against the T-shaped guide rail and a second state of being separated from the T-shaped guide rail; when the first connecting rod is in the working position, the locking assembly is in the second state; when the first link is in the triggering position, the first link triggers the locking assembly to enable the locking assembly to be switched from the second state to the first state; the first connecting rod can drive the trigger assembly to move upwards when rotating from the working position to the trigger position, so that the locking assembly is triggered to be switched from the second state to the first state; one-way spacing subassembly, one-way spacing subassembly is fixed in the car top, one-way spacing subassembly has spigot surface and spacing face, trigger the subassembly and can drive backstop portion upward movement makes backstop portion at first with spigot surface sliding contact and finally with spacing face looks butt, spacing face can stop backstop portion downstream. The guide rail in the guide rail braking device adopts a T-shaped guide rail, and the matching with the braking device is more stable; one-way spacing subassembly can carry out one-way spacing to triggering the subassembly with the backstop portion that triggers on the subassembly, and when first connecting rod area movable contact sent the subassembly upward movement, backstop portion upward movement thereupon to through spigot surface and spacing face butt, because backstop portion and the butt of spacing face, trigger the subassembly and can continue upward movement and unable downstream, avoided triggering the problem that the subassembly kick-backed, make the locking subassembly more stable to the braking of T type guide rail.

In one example, the one-way limiting assembly includes an elastic member, a limiting member, and a housing, the housing is provided with an opening, the elastic member and the limiting member are both disposed in the housing, one end of the elastic member abuts against an inner wall of the housing, and the other end of the elastic member abuts against the elastic member, and the elastic member can apply a force to the limiting member toward the outside of the housing, so that a portion of the elastic member is exposed from the opening. When first connecting rod area movable contact sends out subassembly upward movement, backstop portion upward movement thereupon, when backstop portion butt oriented surface, because backstop portion is the up-and-down motion, under the extrusion of backstop portion, the elastic component is compressed, the locating part is to casing inside motion thereupon, when backstop portion moves to the oriented surface top, backstop portion no longer has the effort to the locating part, the elastic component kick-backs, the locating part moves and moves to the below of backstop portion towards the casing outside, spacing face is located the below of backstop portion, the locating part can be made spacingly to the downward motion of backstop portion, avoid triggering the resilience of subassembly.

In one example, the limiting member has a slope below, the slope is the guide surface, and the limiting member has a plane above, the plane is the limiting surface. When the guide surface is a slope, the stopping part slides on the guide surface more smoothly.

In one example, the stopper portion has an upper portion with a circular arc surface and a lower portion with a flat surface. The arc surface above the stopping part can be better matched with the guide surface, and the plane below the stopping part can be better matched with the limiting surface above the limiting part.

In one example, the opening of the housing has a limiting portion, and the limiting member is provided with a matching limiting portion, and the limiting portion can abut against the matching limiting portion to prevent the limiting member from falling off from the housing.

In one example, the one-way limiting assembly further comprises an air cylinder, the air cylinder is fixed to the top of the car, and an output shaft of the air cylinder is fixedly connected with the outside of the shell. When the hawser is repaired, the household elevator without pit can work normally, the position of the shell can be controlled through the stretching of the cylinder, the shell is moved backwards, the stopping part is separated from the limiting part, the limiting part does not limit the downward movement of the stopping part any more, the trigger assembly can move downwards, and the locking assembly is switched back to the second state separated from the T-shaped guide rail.

In one example, the elastic member is provided as a compression spring. The compression spring is in a compressed state in the housing at all times.

In one example, the gear pulley assembly further includes a reset member configured to impart a force to the first link to move toward the triggered position. The piece that resets can make first link rotate to the trigger position voluntarily upwards after the hawser fracture.

In one example, the T-shaped guide rail further comprises an outer frame disposed outside the T-shaped guide rail. The outer frame can carry out certain protection to locking subassembly, guide shoe isotructure on the T type guide rail to the noise reduction.

Drawings

The drawings described herein are intended only to assist those skilled in the art in understanding the technical solutions of the present invention, and the exemplary embodiments of the present invention described in conjunction with the drawings are intended only to explain the technical solutions of the present invention and do not constitute an undue limitation on the present invention. In the drawings:

fig. 1 is a schematic perspective view of a bottomless household elevator provided by an embodiment of the present invention;

fig. 2 is a top view of a bottomless home elevator provided by an embodiment of the present invention;

fig. 3 is a schematic view of a partial three-dimensional structure of a bottomless household elevator provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first state of the one-way limiting assembly according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of the one-way limiting assembly according to the embodiment of the present invention in the second state;

fig. 6 is a schematic structural diagram of the one-way limiting assembly provided in the embodiment of the present invention in a third state;

fig. 7 is a top view of a T-shaped guide rail according to an embodiment of the present invention.

List of reference numerals:

the elevator comprises a bottomless household elevator 1, a T-shaped guide rail 2, a car 3, a reversing pulley 4, a reel 5, a cable 6, a first connecting rod 7, a rope blocking wheel 8, a locking assembly 9, a triggering assembly 10, a stopping portion 11, a guide surface 12, a limiting surface 13, an elastic piece 14, a limiting piece 15, a shell 16, an arc surface 17, a plane 18, a limiting portion 19, a matching limiting portion 20, a cylinder 21, an output shaft 22, a resetting piece 23 and an outer frame 24.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so 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, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 7, the utility model provides a guide rail braking device of a household elevator 1 without a pit, which comprises a T-shaped guide rail 2, wherein the T-shaped guide rail 2 is arranged at two opposite sides of a car 3; a hoisting assembly comprising two diverting pulleys 4 arranged on the top of the car 3, a reel 5, a rope 6 wound on the reel 5; the rope blocking wheel assemblies comprise two first connecting rods 7 and two rope blocking wheels 8, one end of each first connecting rod 7 is rotatably provided with a rope blocking wheel 8, the other end of each first connecting rod is hinged to the top of the car 3, the cable 6 extends upwards after being reversed by the reversing pulley 4 and is abutted against the rope blocking wheel 8, and the cable 6 can apply force to the first connecting rods 7 through the rope blocking wheels 8 so that the first connecting rods 7 rotate to a working position or a triggering position; two locking assemblies 9 which are respectively arranged below the rope stopping wheel assembly and fixed on the lift car 3, wherein the locking assemblies 9 have a first state of abutting against the T-shaped guide rail 2 and a second state of separating from the T-shaped guide rail 2; when the first connecting rod 7 is at the working position, the locking assembly 9 is in a second state; when the first connecting rod is at the triggering position, the first connecting rod 7 triggers the locking assembly to enable the locking assembly to be switched from the second state to the first state; the trigger assembly 10 is connected with the first connecting rod 7, the trigger assembly 10 is provided with a stopping part 11, and the first connecting rod 7 can drive the trigger assembly 10 to move upwards when rotating from the working position to the trigger position, so that the locking assembly 9 is triggered to be switched from the second state to the first state; one-way spacing subassembly, one-way spacing subassembly are fixed in 3 tops of car, and one-way spacing subassembly has spigot surface 12 and spacing face 13, triggers subassembly 10 and can drive backstop portion 11 upward movement, makes backstop portion 11 at first with spigot surface 12 sliding contact and final with spacing 13 looks butt, spacing face 13 can prevent backstop portion 11 downstream. The guide rail in the guide rail braking device adopts the T-shaped guide rail 2, and the matching between the T-shaped guide rail and the braking device is more stable; one-way spacing subassembly can carry out one-way spacing to triggering subassembly 10 with backstop portion 11 on the subassembly 10 that triggers, when first connecting rod 7 drives and triggers subassembly 10 upward movement, backstop portion 11 upward movement along with it, and through spigot surface 12 and spacing face 13 butt, because backstop portion 11 and the butt of spacing face 13, trigger subassembly 10 can continue upward movement and unable downstream, the problem of triggering subassembly 10 resilience has been avoided, make locking subassembly 9 more stable to the braking of T type guide rail 2.

In one embodiment, as shown in fig. 4 to 6, the one-way limiting assembly includes an elastic element 14, a limiting element 15 and a housing 16, the housing 16 is opened with an opening, the elastic element 14 and the limiting element 15 are both disposed in the housing, one end of the elastic element 14 abuts against an inner wall of the housing 16, and the other end abuts against the elastic element 14, the elastic element 14 can apply a force to the limiting element 15 toward an outer side of the housing 16, so that a part of the elastic element 14 is exposed from the opening. When the first connecting rod 7 drives the trigger assembly 10 to move upwards, the stopping portion 11 moves upwards along with the stopping portion, when the stopping portion 11 abuts against the guide surface 12, because the stopping portion 11 moves up and down, under the extrusion of the stopping portion 11, the elastic part 14 is compressed, the limiting part 15 moves towards the inside of the shell 16 along with the stopping portion 15, when the stopping portion 11 moves to the upper side of the guide surface 12, the stopping portion 11 no longer has acting force on the limiting part 15, the elastic part 14 rebounds, the limiting part 15 moves towards the outer side of the shell 16 and moves to the lower side of the stopping portion 11, the limiting surface 13 is located below the stopping portion 11, the limiting part 15 can limit the downward movement of the stopping portion 11, and the rebounding of the trigger assembly 10 is.

In one embodiment, as shown in fig. 4 to 6, the limiting member 15 has a slope surface below, the slope surface is the guiding surface 12, and the limiting member 15 has a flat surface above, the flat surface is the limiting surface 13. When the guide surface 12 is a slope, the stopper 11 slides more smoothly on the guide surface 12.

In one embodiment, as shown in fig. 4 to 6, the stopper 11 has an arc surface 17 at the upper part and a flat surface 18 at the lower part. The arc surface 17 above the stopping portion 11 can better cooperate with the guiding surface 12, and the lower plane 18 can better cooperate with the limiting surface 13 above the limiting member 15.

In one embodiment, as shown in fig. 4 to 6, the opening of the housing 16 has a limiting portion 19, the limiting member 15 has a matching limiting portion 20, and the limiting portion 19 can abut against the matching limiting portion 20 to prevent the limiting member 15 from falling off from the housing 16.

In one embodiment, as shown in fig. 4 to 6, the one-way limiting assembly further includes a cylinder 21, the cylinder 21 is fixed on the top of the car 3, and an output shaft 22 of the cylinder 21 is fixedly connected with the outside of the housing 16. When the mooring rope 6 is repaired and the bottomless home elevator 1 can normally work, the position of the shell 16 can be controlled through the expansion and contraction of the air cylinder 21, the shell 16 is moved backwards, the stopping part 11 is separated from the limiting part 15, the limiting part 15 does not limit the downward movement of the stopping part 11 any more, the trigger assembly 10 can move downwards, and the locking assembly 9 is switched back to the second state separated from the T-shaped guide rail 2.

In one embodiment, as shown in fig. 4-6, the elastic member 14 is provided as a compression spring. The compression spring is constantly in a compressed state within the housing 16.

In one embodiment, as shown in fig. 3, the pulley block assembly further comprises a reset member 23, the reset member 23 being capable of imparting a force to the first link 7 to move toward the triggered position. The return element 23 is able to automatically rotate the first link 7 upwards to the triggering position after the cable 6 has broken.

In one embodiment, as shown in fig. 7, the T-shaped guide rail 2 further comprises an outer frame 24 disposed outside the T-shaped guide rail 2. The outer frame 24 can protect the locking assembly 9, the guide shoes and other structures on the T-shaped guide rail 2 to a certain degree and reduce noise.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. Guide rail braking device of pit-free home use elevator, characterized by comprising:

the T-shaped guide rails are arranged on two opposite sides of the car;

the lifting assembly comprises two reversing pulleys arranged on the top of the lift car, a reel and a cable wound on the reel;

the two rope blocking wheel assemblies comprise two first connecting rods and rope blocking wheels, one ends of the first connecting rods are rotatably provided with the rope blocking wheels, the other ends of the first connecting rods are hinged to the top of the lift car, the cable extends upwards after reversing from the reversing pulley and is abutted against the rope blocking wheels, and the cable can apply force to the first connecting rods through the rope blocking wheels so that the first connecting rods rotate to a working position or a triggering position;

the two locking assemblies are respectively arranged below the rope stopping wheel assembly and fixed on the lift car, and each locking assembly has a first state of abutting against the T-shaped guide rail and a second state of being separated from the T-shaped guide rail; when the first connecting rod is in the working position, the locking assembly is in the second state; when the first link is in the triggering position, the first link triggers the locking assembly to enable the locking assembly to be switched from the second state to the first state;

the first connecting rod can drive the trigger assembly to move upwards when rotating from the working position to the trigger position, so that the locking assembly is triggered to be switched from the second state to the first state;

one-way spacing subassembly, one-way spacing subassembly is fixed in the car top, one-way spacing subassembly has spigot surface and spacing face, trigger the subassembly and can drive backstop portion upward movement makes backstop portion at first with spigot surface sliding contact and finally with spacing face looks butt, spacing face can stop backstop portion downstream.

2. The device as claimed in claim 1, wherein the one-way limiting assembly includes an elastic member, a limiting member and a housing, the housing has an opening, the elastic member and the limiting member are both disposed in the housing, one end of the elastic member abuts against an inner wall of the housing, and the other end abuts against the elastic member, and the elastic member can apply a force to the limiting member toward an outside of the housing so as to expose a portion of the elastic member from the opening.

3. The guide rail braking apparatus according to claim 2, wherein the limiting member has a slope surface below, the slope surface being the guide surface, and the limiting member has a flat surface above, the flat surface being the limiting surface.

4. The guide rail brake device of claim 1, wherein the stopper portion has an upper circular arc surface and a lower flat surface.

5. The guide rail braking device according to claim 2, wherein the opening of the housing has a limiting portion, and the limiting member is provided with a fitting limiting portion that can abut against the fitting limiting portion to prevent the limiting member from falling off from the housing.

6. The rail brake of claim 2, wherein the one-way limiting assembly further comprises a cylinder fixed to the top of the car, and an output shaft of the cylinder is fixedly connected to the outside of the housing.

7. The guide rail brake apparatus of claim 2, wherein the elastic member is provided as a compression spring.

8. The rail brake of claim 1, wherein the pulley block assembly further comprises a reset member configured to impart a force to the first link to move toward the activated position.

9. The rail brake apparatus of any one of claims 1 to 8, wherein the T-shaped rail further comprises an outer frame disposed outside the T-shaped rail.

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