Safety brake device for a flat elevator

Abstract

The application discloses a flat-energy elevator safety brake device, which is installed on the top or bottom of a car, wherein a guide mechanism comprises a fixed block and a linear guide rail; a wedge block locking mechanism is slidably arranged between the linear guide rail and the side surface of an elevator guide rail; an adjusting mechanism is vertically and telescopically connected to the lower end of the wedge block locking mechanism and the bottom of the fixed block; an electromagnet attraction mechanism is arranged in the adjusting mechanism; when the elevator is normally operated, the electromagnet attraction mechanism is electrified and in an attraction state, so that the adjusting mechanism is in a contraction state, and then the wedge block locking mechanism is separated from the side surface of the elevator guide rail; when the suspension part of the car is broken, the electromagnet attraction mechanism is de-energized to trigger the adjusting mechanism to be elongated upward, and then the wedge block locking mechanism is driven to move upward along the linear guide rail until the wedge block locking mechanism is locked on the side surface of the elevator guide rail. The application has high falling prevention safety.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and in particular to a Pingneng elevator safety brake device. Background Technology

[0002] There are many types of elevators available, and Pingneng elevators are considered safe and energy-efficient. However, the car structure of Pingneng elevators differs from other types of elevators, and safety issues still exist with them. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a flat-energy elevator safety braking device that offers high safety against falls, instantaneous triggering, sensitive braking, stable performance, reusability, and a simple, compact, easy-to-implement, and low-cost structure.

[0004] According to an embodiment of the present invention, a safety brake device for an elevator is installed on the top or bottom of the car and includes a guide mechanism, a wedge block locking mechanism, an adjustment mechanism, and an electromagnet attraction mechanism. The guide mechanism includes a fixed block and a linear guide rail, the linear guide rail being vertically inclined and fixed to the fixed block, with the upper end of the linear guide rail closer to one side surface of the elevator guide rail than its lower end. The wedge block locking mechanism is slidably disposed between the linear guide rail and one side surface of the elevator guide rail. The adjustment mechanism is located in the space enclosed by the linear guide rail, the wedge block locking mechanism, one side surface of the elevator guide rail, and the bottom of the fixed block, and is vertically telescopically connected to the lower end of the wedge block locking mechanism and the bottom of the fixed block. The electromagnet attraction mechanism is disposed within the adjustment mechanism.

[0005] When the elevator is running normally, the electromagnet engaging mechanism is energized and in an engaged state, causing the adjusting mechanism to be in a retracted state, thereby separating the wedge-shaped locking mechanism from one side surface of the elevator guide rail; when the suspension component of the car breaks, the electromagnet engaging mechanism is de-energized, triggering the adjusting mechanism to extend upward, thereby driving the wedge-shaped locking mechanism to move upward along the linear guide rail until the wedge-shaped locking mechanism locks onto one side surface of the elevator guide rail.

[0006] According to an embodiment of the Pingneng elevator safety brake device of the present invention, when the suspension component of the car breaks, the electromagnet engaging mechanism is de-energized, triggering the adjusting mechanism to extend upwards. This, in turn, drives the wedge-shaped locking mechanism to move upwards along the linear guide rail, causing the distance between the wedge-shaped locking mechanism and one side surface of the elevator guide rail to gradually decrease until it is finally locked onto one side surface of the elevator guide rail. This reliably stops the car on the elevator guide rail, achieving safety and preventing falls, and the car's weight load will not directly or indirectly act on the adjusting mechanism. The Pingneng elevator safety brake device of this embodiment can be triggered instantaneously, has sensitive braking, high safety and fall prevention capabilities, stable performance, can be reused repeatedly, and has a simple and compact structure, reasonable design, is easy to implement, and has low cost.

[0007] In some embodiments, the adjusting mechanism includes a guide post, a guide sleeve, and a guide sleeve. The guide post is slidably disposed in the guide sleeve. The upper end of the guide post is ball-jointed with the lower end of the wedge block locking mechanism. The lower end of the guide sleeve is ball-jointed with the bottom of the fixed block. The spring is located in the guide sleeve and sleeved on the guide post. The electromagnet attraction mechanism includes an electromagnet and a magnet. The electromagnet is disposed opposite to each other and is respectively mounted on the guide sleeve and the guide post.

[0008] When the elevator is running normally, the electromagnet is energized and attracts the magnetic element, the spring is compressed, and the wedge-shaped locking mechanism separates from one side surface of the elevator guide rail. When the suspension component of the car breaks, the electromagnet is de-energized, triggering the spring to reset, thereby driving the guide column and the wedge-shaped locking mechanism to move upward, so that the distance between the wedge-shaped locking mechanism and one side surface of the elevator guide rail continuously decreases until it is tightly tangent to one side surface of the elevator guide rail, finally reliably stopping the car on the elevator guide rail.

[0009] In some embodiments, the electromagnet is located below the magnet and fixed at the lower end of the guide sleeve, and the magnet is fixed at the lower end of the guide post.

[0010] In some embodiments, the guide sleeve is provided with a vertically extending limiting groove, and the guide post is provided with a limiting pin, which can slide up and down through the limiting groove.

[0011] In some embodiments, the guide mechanism further includes a slider that slides with the linear guide rail, and the wedge locking mechanism is mounted on the slider.

[0012] In some embodiments, the wedge locking mechanism includes a wedge and a protrusion, the wedge surface of the wedge being fixed to the slider, and the protrusion being fixed to the wedge and facing one side surface of the elevator guide rail.

[0013] In some embodiments, the protrusion is a rubber protrusion.

[0014] In some embodiments, a protective cover is also included, wherein the guiding mechanism, the wedge block locking mechanism, the adjusting mechanism and the electromagnet attraction mechanism are all contained within the protective cover, and the fixing block is fixed to the protective cover; a slot is provided on one side of the protective cover, the elevator guide rail is located in the slot, and one side surface of the elevator guide rail is located inside the protective cover.

[0015] In some embodiments, when the elevator guide rail is an elevator I-shaped guide rail, the web of the elevator I-shaped guide rail is located in the slot, and the two opposite side walls at the slot are respectively located in the two sliding grooves of the elevator I-shaped guide rail, and friction plates are respectively provided on the two opposite side walls at the slot.

[0016] In some embodiments, the friction pad is a rubber friction pad.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a side view of an application scenario of the Pingneng elevator safety brake device according to an embodiment of the present invention;

[0020] Figure 2 This is a perspective view of the application scenario of the Pingneng elevator safety braking device according to an embodiment of the present invention;

[0021] Figure 3 This is a partial axonometric view of the Pingneng elevator safety brake device according to an embodiment of the present invention;

[0022] Figure 4 This is a partially enlarged schematic diagram of the Pingneng elevator safety brake device according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the state in which the wedge-shaped locking mechanism is separated from one side surface of the elevator guide rail when the electromagnet attraction mechanism is engaged in the Pingneng elevator safety brake device according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the state in which the wedge-shaped locking mechanism is tightly tangent to one side surface of the elevator guide rail after the electromagnet attraction mechanism is triggered by the Pingneng elevator safety brake device according to an embodiment of the present invention.

[0025] Figure Labels

[0026] Pingneng elevator safety brake device 1000; guide mechanism 1; fixed block 101; linear guide rail 102; slider 103; wedge block locking mechanism 2; wedge block 201; wedge surface 2021; protrusion 202; adjustment mechanism 3; guide column 301; limit pin 3011; guide sleeve 302; limit groove 3021; ​​spring 303; electromagnet attraction mechanism 4; electromagnet 401; magnetic element 402; protective cover 5; slot 501; friction plate 502; car 6; elevator guide rail 7. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following is combined Figures 1 to 6 The following describes an embodiment of the eccentric wheel type energy-saving elevator safety brake device 1000.

[0029] like Figure 1 and Figure 2 As shown, the Pingneng elevator safety brake device 1000 of this embodiment is installed on the top or bottom of the car 6. It can be understood that the Pingneng elevator safety brake device 1000 can be installed on the top of the car 6, or on the bottom of the car 6, or on both the top and bottom of the car 6 respectively. The installation positions on the top and bottom of the car 6 can also be symmetrical.

[0030] like Figures 1 to 6As shown, the Pingneng elevator safety brake device 1000 of this embodiment includes a guide mechanism 1, a wedge block locking mechanism 2, an adjustment mechanism 3, and an electromagnet attraction mechanism 4; wherein, the guide mechanism 1 includes a fixing block 101 and a linear guide rail 102, the fixing block 101 can be fixed to the car 6, that is, the Pingneng elevator safety brake device 1000 of this embodiment can be conveniently fixed to the top or bottom of the car 6 using the fixing block 101; the linear guide rail 102 is vertically inclined and fixed to the fixing block 101, the upper end of the linear guide rail 102 is closer to one side surface of the elevator guide rail 7 than the lower end of the linear guide rail 7, the elevator guide rail 7 can be an elevator I-shaped guide rail, an elevator square guide rail, an elevator round guide rail, etc.; the wedge block locking mechanism 2 is slidably disposed between the linear guide rail 102 and one side surface of the elevator guide rail 7 along the linear guide rail 102; the adjusting mechanism 3 is located in the space enclosed by the linear guide rail 102, the wedge block locking mechanism 2, one side surface of the elevator guide rail 7 and the bottom of the fixing block 101, and the adjusting mechanism 3 is vertically telescopically connected to the lower end of the wedge block locking mechanism 2 and the bottom of the fixing block 101; the electromagnet attraction mechanism 4 is disposed in the adjusting mechanism 3 so that the electromagnet attraction mechanism 4 can be linked with the adjusting mechanism 3 and the wedge block locking mechanism 2.

[0031] When the elevator is running normally, the electromagnet engaging mechanism 4 is energized and in an engaged state, causing the adjusting mechanism 3 to be in a contracted state, which in turn causes the wedge locking mechanism 2 to separate from one side surface of the elevator guide rail 7. When the suspension component (such as the ladder rope or board belt) of the car 6 breaks, the electromagnet engaging mechanism 4 is de-energized, triggering the adjusting mechanism 3 to extend upward, which in turn drives the wedge locking mechanism 2 to move upward along the linear guide rail 102, so that the wedge locking mechanism 2 is finally locked onto one side surface of the elevator guide rail 7, thereby reliably stopping the car 6 on the elevator guide rail 7 and achieving safe fall prevention.

[0032] According to an embodiment of the present invention, the Pingneng elevator safety brake device 1000, when the suspension component of the car 6 breaks, de-energizes the electromagnet engaging mechanism 4, triggering the adjusting mechanism 3 to extend upwards. This, in turn, drives the wedge-shaped locking mechanism 2 to move upwards along the linear guide rail 102, causing the distance between the wedge-shaped locking mechanism 2 and one side surface of the elevator guide rail 7 to gradually decrease until it is finally locked onto one side surface of the elevator guide rail 7. This reliably stops the car 6 on the elevator guide rail 7, achieving safety and preventing falls, and the gravity load of the car 6 will not directly or indirectly act on the adjusting mechanism 3. The Pingneng elevator safety brake device 1000 of this embodiment can be triggered instantaneously, has sensitive braking, high safety and fall prevention, stable performance, can be reused repeatedly, and has a simple and compact structure, reasonable design, is easy to implement, and has low cost.

[0033] In some embodiments, such as Figures 3 to 6As shown, the adjusting mechanism 3 includes a guide post 301, a guide sleeve 302, and a spring 303. The guide post 301 is slidably disposed in the guide sleeve 302. The upper end of the guide post 301 is ball-jointed with the lower end of the wedge block locking mechanism 2, for example, through a ball joint. The lower end of the guide sleeve 302 is ball-jointed with the bottom of the fixed block 101, for example, through another ball joint. By setting the guide post 301, the guide sleeve 302, and the ball joint between the guide post 301 and the bottom of the wedge block locking mechanism 2, the movement of the wedge block locking mechanism 2 can be prevented from being unsmooth. The spring 303 is located in the guide sleeve 302 and sleeved on the guide post 301. The electromagnet attraction mechanism 4 includes an electromagnet 401 and a magnet 402. The electromagnet 401 is arranged opposite to each other and is respectively mounted on the guide sleeve 302 and the guide post 301.

[0034] When the elevator is running normally, the electromagnet 401 is energized and attracts the magnetic component 402, the spring 303 is in a compressed state, and the wedge block locking mechanism 2 is separated from one side surface of the elevator guide rail 7. In other words, when the elevator is running normally, the electromagnet 401 is energized and generates electromagnetic force to attract the magnetic component 402. Since the electromagnetic force is greater than the elastic force of the compressed spring 303, the guide post 301 can be kept in a fixed position, thereby causing the wedge block locking mechanism 2 to separate from one side surface of the elevator guide rail 7.

[0035] When the suspension component of the car 6 breaks, the electromagnet 401 is de-energized, triggering the spring 303 to reset, thereby driving the guide column 301 and the wedge block locking mechanism 2 to move upward, so that the distance between the wedge block locking mechanism 2 and one side surface of the elevator guide rail 7 continuously decreases until it is tightly tangent to one side surface of the elevator guide rail 7, and finally reliably stops the car 6 on the elevator guide rail 7. In other words, when the suspension component of the car 6 breaks, the electromagnet 401 is de-energized and does not generate electromagnetic force. Since the spring 303 is in a compressed state, it resets due to its own elasticity, driving the guide post 301 to slide upward along the guide sleeve 302. The upward sliding of the guide post 301 will drive the wedge block locking mechanism 2 to slide upward along the linear guide rail 102. In this way, the distance between the wedge block locking mechanism 2 and one side surface of the elevator guide rail 7 continuously decreases until it is tightly tangent to one side surface of the elevator guide rail 7, ultimately reliably stopping the car 6 on the elevator guide rail 7, achieving safe fall prevention, and the gravity load of the car 6 will not directly or indirectly act on the adjusting mechanism 3. Therefore, the Pingneng elevator safety brake device 1000 can be triggered instantaneously, has sensitive braking, high safety and fall prevention, stable performance, can be reused repeatedly, and has a simple and compact structure, reasonable design, easy implementation, and low cost.

[0036] In some embodiments, such as Figure 5 and Figure 6As shown, electromagnet 401 is located below the magnet 402 and fixed at the lower end inside the guide sleeve 302, while the magnet 402 is fixed at the lower end of the guide post 301. Therefore, the electromagnet 401 and the magnet 402 are arranged reasonably and are easy to install.

[0037] In some embodiments, such as Figure 3 and Figure 4 As shown, the guide sleeve 302 is provided with a vertically extending limiting groove 3021, and the guide post 301 is provided with a limiting pin 3011. The limiting pin 3011 can slide up and down through the limiting groove 3021. This facilitates the smooth movement of the wedge block locking mechanism 2 and prevents the guide post 301 from disengaging from the guide sleeve 302.

[0038] Specifically, there are two limiting grooves 3021, which are symmetrically distributed on the two side walls of the guide sleeve 302. There are also two limiting pins 3011, which are fixed on the two sides of the guide post 301. The two limiting pins are slidably located in the two limiting grooves respectively. This facilitates the smooth movement of the wedge block locking mechanism 2 and prevents the guide post 301 from disengaging from the guide sleeve 302.

[0039] In some embodiments, such as Figures 3 to 6 As shown, the guide mechanism 1 also includes a slider 103, which slides in conjunction with the linear guide rail 102, and a wedge-shaped locking mechanism 2 is mounted on the slider 103. This facilitates the smooth movement of the wedge-shaped locking mechanism 2.

[0040] In some embodiments, such as Figures 3 to 6 As shown, the wedge locking mechanism 2 includes a wedge block 201 and a protrusion 202. The wedge-shaped surface 2021 of the wedge block 201 is fixed to the slider 103, and the protrusion 202 is fixed on the wedge block 201 and faces one side surface of the elevator guide rail 7. When the suspension component of the car 6 breaks, the electromagnet 401 is de-energized, instantly triggering the spring 303 to reset. The guide post 301 moves upward, causing the wedge block 201 and the protrusion 202 to move upward. The wedge block 201 locks the protrusion 202 onto one side surface of the elevator guide rail 7, relying on the static friction between the protrusion 202 and one side surface of the elevator guide rail 7 to prevent the car 6 from falling.

[0041] In some embodiments, the protrusion 202 is a rubber protrusion 202. In this way, when the protrusion 202 is locked on one side of the elevator guide rail 7, the static friction between the protrusion 202 and one side surface of the elevator guide rail 7 can be increased, so that the car 6 can be reliably stopped on the elevator guide rail 7.

[0042] In some embodiments, such as Figures 1 to 3 and Figures 5 to 6As shown, the system also includes a protective cover 5. The guide mechanism 1, wedge block locking mechanism 2, adjusting mechanism 3, and electromagnet attraction mechanism 4 are all housed within the protective cover 5, and the fixing block 101 is fixed to the protective cover 5. A slot 501 is provided on one side of the protective cover 5, and the elevator guide rail 7 is located in the slot 501, with one side surface of the elevator guide rail 7 located inside the protective cover 5. By providing the protective cover 5, the guide mechanism 1, wedge block locking mechanism 2, adjusting mechanism 3, and electromagnet attraction mechanism 4 can be protected.

[0043] In some embodiments, when the elevator guide rail 7 is an elevator I-shaped guide rail, the web of the elevator I-shaped guide rail is located in the groove 501, and the two opposite side walls at the groove 501 are respectively located in the two slide grooves of the elevator I-shaped guide rail. Friction plates 502 are respectively provided on the two opposite side walls at the groove 501, the purpose of which is to increase the friction between the friction and the inner wall of the slide groove of the elevator guide rail 7 and provide working safety.

[0044] In some embodiments, grooves are provided on the surface of the friction pad 502, and the friction pad 502 is a rubber friction pad 502, the purpose of which is to increase friction and improve work safety.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these 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. A safety brake device for a power-operated elevator, characterized in that, Installed on the top or bottom of the elevator car, the system includes a guide mechanism, a wedge-block locking mechanism, an adjustment mechanism, and an electromagnet attraction mechanism. The guide mechanism comprises a fixed block and a linear guide rail, the linear guide rail being vertically inclined and fixed to the fixed block, with its upper end closer to one side surface of the elevator guide rail than its lower end. The wedge-block locking mechanism is slidably disposed between the linear guide rail and one side surface of the elevator guide rail. The adjustment mechanism is located in the space enclosed by the linear guide rail, the wedge-block locking mechanism, one side surface of the elevator guide rail, and the bottom of the fixed block, and is vertically telescopically connected to the lower end of the wedge-block locking mechanism and the bottom of the fixed block. The electromagnet attraction mechanism is disposed within the adjustment mechanism. When the elevator is running normally, the electromagnet engaging mechanism is energized and in an engaged state, causing the adjusting mechanism to be in a retracted state, thereby separating the wedge-shaped locking mechanism from one side surface of the elevator guide rail; when the suspension component of the car breaks, the electromagnet engaging mechanism is de-energized, triggering the adjusting mechanism to extend upward, thereby driving the wedge-shaped locking mechanism to move upward along the linear guide rail until the wedge-shaped locking mechanism locks onto one side surface of the elevator guide rail; The adjusting mechanism includes a guide post, a guide sleeve, and a guide sleeve spring. The guide post is slidably disposed in the guide sleeve. The upper end of the guide post is ball-jointed with the lower end of the wedge block locking mechanism. The lower end of the guide sleeve is ball-jointed with the bottom of the fixed block. The spring is located in the guide sleeve and sleeved on the guide post. The electromagnet attraction mechanism includes an electromagnet and a magnet. The electromagnet is disposed opposite to each other and is respectively mounted on the guide sleeve and the guide post. When the elevator is running normally, the electromagnet is energized and attracts the magnetic component, the spring is compressed, and the wedge locking mechanism separates from one side surface of the elevator guide rail. When the suspension component of the car breaks, the electromagnet is de-energized, triggering the spring to reset, thereby driving the guide column and the wedge locking mechanism to move upward, so that the distance between the wedge locking mechanism and one side surface of the elevator guide rail continuously decreases until it is tightly tangent to one side surface of the elevator guide rail, and finally reliably stops the car on the elevator guide rail, and the car's gravity load will not act on the adjustment mechanism. The electromagnet is located below the magnet and fixed at the lower end of the guide sleeve, and the magnet is fixed at the lower end of the guide post. The guide sleeve is provided with a vertically extending limiting groove, and the guide post is provided with a limiting pin, which can slide up and down through the limiting groove.

2. The elevator safety brake device according to claim 1, characterized in that, The guiding mechanism also includes a slider, which slides in conjunction with the linear guide rail, and the wedge-shaped locking mechanism is mounted on the slider.

3. The safety brake device for a power-operated elevator according to claim 2, characterized in that, The wedge locking mechanism includes a wedge and a protrusion. The wedge-shaped surface of the wedge is fixed to the slider, and the protrusion is fixed on the wedge and faces one side surface of the elevator guide rail.

4. The safety brake device for a level elevator according to claim 3, characterized in that, The protrusion is a rubber protrusion.

5. The Pingneng elevator safety brake device according to any one of claims 1-4, characterized in that, It also includes a protective cover, in which the guiding mechanism, wedge block locking mechanism, adjusting mechanism and electromagnet attraction mechanism are all located, and the fixing block is fixed to the protective cover; a slot is provided on one side of the protective cover, the elevator guide rail is located in the slot, and one side surface of the elevator guide rail is located inside the protective cover.

6. The elevator safety brake device according to claim 5, characterized in that, When the elevator guide rail is an elevator I-shaped guide rail, the web of the elevator I-shaped guide rail is located in the slot, and the two opposite side walls at the slot are respectively located in the two sliding grooves of the elevator I-shaped guide rail, and friction plates are respectively provided on the two opposite side walls at the slot.

7. The safety brake device for a power-operated elevator according to claim 6, characterized in that, The friction pad is a rubber friction pad.

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