CN107311007B - Safety tongs and elevator assembly - Google Patents

Abstract

The invention relates to the field of elevators, in particular to a safety gear and an elevator assembly. The aim of the invention is to find that the main reason for the incontrollable emotion of the user in the elevator is that the elevator generates a loud sound when braking. The passenger does not know that the elevator is performing a braking operation at this time, so panic is triggered. The invention provides the safety tongs, which are provided with the buffer parts on the tongs blocks, so that the buffer parts reduce the sound during braking, avoid the panic of passengers, and ensure the safety and the use experience. A second object of the invention is to provide an elevator assembly comprising the safety gear described above. The elevator assembly is high in safety and low in braking noise.

Description

Safety gear and elevator assembly

Technical field

The present invention relates to the field of elevators, and in particular to a safety gear and an elevator assembly.

Background technique

In modern life, elevators are one of the indispensable equipment for transporting people and materials, and their safety performance has always been highly valued. In existing elevators, in order to avoid overspeeding or falling, many control devices are installed on the elevator to increase the safety performance of the elevator and ensure the safety of passengers in the elevator.

People have always been afraid of elevator accidents. When an elevator encounters a malfunction, they feel nervous and their behavior is easy to lose control. This increases the risk of elevator operation and brings a poor experience, making them feel more uneasy about taking the elevator.

Contents of the invention

The purpose of the present invention is to address the problems existing in existing elevators and find that the main reason why users lose control of their emotions when encountering problems in the elevator is that loud noises are produced when the elevator brakes. Passengers did not know that the elevator was braking at this time, causing panic. The invention provides a safety gear that makes less noise when braking, avoids panic among passengers, and ensures safety and user experience.

The second object of the present invention is to provide an elevator assembly with high safety and low braking noise.

The embodiment of the present invention is implemented as follows:

A safety gear is used to be installed in an elevator car. It includes: a clamp base, a first elastic member, a lifting mechanism, and a first clamp block and a second clamp block that are symmetrically arranged; the first clamp block is connected to the elevator car through the lifting mechanism. The clamp base is connected; the second clamp block is connected to the clamp base through the first elastic member; the lifting mechanism is configured to control the first clamp block to approach the second clamp block; a buffer is provided on one side of the first clamp block close to the second clamp block part; the buffer part is configured to reduce the impact that occurs when the first clamp block moves.

The safety gear makes less noise when braking, which avoids panic among passengers and ensures safety and user experience.

In an embodiment of the invention:

The gaps between the clamp base, the first elastic member, the lifting mechanism, the first clamp block and the second clamp block are filled with sound-absorbing cotton.

In an embodiment of the invention:

The buffering part is strip-shaped; the buffering part extends from one end of the first clamp block away from the lifting mechanism to the other end of the buffering part.

In an embodiment of the invention:

The buffer part is a hollow structure; the buffer part is filled with compressed gas.

In an embodiment of the invention:

The buffer part is made of rubber; the buffer part is detachably connected to the first clamp block.

In an embodiment of the invention:

A zigzag outer contour is provided on the side of the buffer portion away from the second jaw block.

In an embodiment of the invention:

The safety gear also includes a second elastic member; an end of the first clamp block away from the second clamp block is connected to the clamp base through the second elastic member.

In an embodiment of the invention:

The lifting mechanism is connected to an end of the second clamp block close to the clamp base, and the lifting mechanism is configured to control the second clamp block to approach the first clamp block.

In an embodiment of the invention:

A buffer portion is provided on a side of the second clamp block close to the first clamp block.

An elevator assembly, which includes an elevator car, a guide rail and the above-mentioned safety gear; the safety gear is connected to the elevator car; the guide rail penetrates the clamp seat; both sides of the guide rail are detachably matched with the first clamp block and the second clamp block respectively.

The elevator component has high safety and low braking noise.

The technical solution of the present invention at least has the following beneficial effects:

The purpose of the present invention is to find that the main reason why users lose control of their emotions when they encounter problems in the elevator is that when the elevator brakes, a loud noise will be produced. Passengers did not know that the elevator was braking at this time, causing panic. Therefore, the present invention provides a safety gear, which is provided with a buffer portion on the clamp block. The buffer portion reduces the sound during braking, avoids panic among passengers, and ensures safety and user experience.

The second object of the present invention is to provide an elevator assembly, which includes the above-mentioned safety gear. The elevator component has high safety and low braking noise.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the safety gear in Embodiment 1 of the present invention;

Figure 2 is a partial schematic diagram of the safety gear in Embodiment 1 of the present invention;

Figure 3 is a schematic diagram of the first clamp block in Embodiment 1 of the present invention;

Figure 4 is a schematic diagram of the safety gear in Embodiment 2 of the present invention.

In the picture: 100-safety gear; 200-safety gear; 300-guide rail; 110-clamp seat; 120-first elastic member; 130-lifting mechanism; 140-first clamp block; 150-second clamp block; 160 -The second elastic member; 170-buffer part; 171-screw; 180-compressed air.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, rather than all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the invention provided in the appended drawings is not intended to limit the scope of the claimed invention, but rather to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures. In addition, the terms "first", "second", etc. are only used to differentiate descriptions and are not to be understood as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the product of the invention Orientations or positional relationships that are customarily placed during use are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood. are limitations of the present invention.

Example 1

Referring to Figures 1 and 2, Figure 1 shows a safety gear 100 provided in this embodiment, which includes a clamp base 110, a first elastic member 120, a lifting mechanism 130, and a symmetrically arranged first clamp block 140 and a second clamp. Block 150. The first clamp block 140 and the second clamp block 150 are arranged symmetrically, so that when the safety gear 100 is braking, it rubs against the guide rail 300 and is braked by friction force.

The first clamp block 140 is connected to the clamp base 110 through a lifting mechanism 130, and the lifting mechanism 130 is configured to control the first clamp block 140 to approach the second clamp block 150 to achieve braking. The second clamp block 150 is connected to the clamp base 110 through the first elastic member 120 . Usually, the first elastic member 120 is a disc spring, used for buffering and smooth braking.

It is used when the first clamp block 140 approaches the second clamp block 150 during sudden braking, and the first clamp block 140 contacts the guide rail 300 and an impact will occur. Since in general, the first clamp block 140 and the guide rail 300 in the safety gear 100 The guide rail 300 is made of steel material and will produce a loud sound when it hits. The safety gear 100 usually works when the elevator is overspeeding or falling. At this time, most people in the elevator are in a state of mental stress. The sound made at this time is This will cause people in the elevator to panic. They do not know that it is the braking effect of the safety gear 100 and mistakenly believe that it is an elevator failure. At this time, people in the elevator will move or jump due to panic, which seriously affects the safe braking of the elevator. In addition, when the elevator brakes successfully, the user will also leave a psychological shadow, seriously affecting the user experience, and causing people in the elevator to have a negative impact on the elevator. Fear and distrust.

Therefore, in this patent, a buffer portion 170 is provided on the side of the second clamp block 150 close to the first clamp block 140. The buffer portion 170 reduces the impact that occurs when the first clamp block 140 moves, thereby reducing the amount of noise generated by the safety gear 100 when braking. The sound reduces the panic of people in the elevator.

In this embodiment, the safety gear 100 further includes a second elastic member 160. One end of the first clamp block 140 away from the second clamp block 150 is connected to the clamp base 110. Similarly, the second elastic member 160 is connected to the clamp base 110. 160 is a disc spring. Through the first elastic member 120 and the second elastic member 160, when the first clamp block 140 and the second clamp block 150 are close to each other, the elastic force of the first clamp block 140 or the second clamp block 150 is reduced. Then touch it again to reduce the sound again. More optimized user experience. It should be noted that in other specific implementations, the second elastic member 160 may not be provided according to actual usage conditions. In addition, in other specific implementations, the first elastic member 120 and the second elastic member 160 may not be provided. It is a disc spring and is set into other elastic blocks, such as rubber pads.

In this embodiment, for better braking, the lifting mechanism 130 is connected to an end of the second clamp block 150 close to the clamp base 110 and has the same function as the first clamp block 140. The lifting mechanism 130 is configured to control the second clamp block 150. The second clamp block 150 is close to the first clamp block 140 . The first caliper 140 and the second caliper 150 are controlled by the lifting mechanism 130 to achieve better braking. In addition, in other specific embodiments, according to actual use requirements, the second clamp block 150 may not be connected to the lifting mechanism 130, and the safety gear 100 may be configured in a single braking form.

Furthermore, since the second clamp block 150 will move toward the first clamp block 140 when the safety gear 100 is braking, in this embodiment, in order to reduce the contact noise and reduce the panic of people in the elevator, the second clamp block 150 is A buffer portion 170 is also provided on the side of 150 close to the first clamp block 140 . It should be noted that in its specific implementation, if the safety gear 100 adopts a single brake, the buffer portion 170 may not be provided on the second clamp block 150 .

In this embodiment, the buffer portion 170 is in a strip shape. The strip-shaped buffer portion 170 extends from one end of the first clamp block 140 away from the lifting mechanism 130 to the other end of the buffer portion 170 . By arranging the buffer portion 170 in a strip shape, since it has the function of slowing down the impact when the first clamp block 140 and the second clamp block 150 contact the guide rail 300, the strip shape can increase the contact area, thereby achieving better buffering. .

In this embodiment, the buffer portion 170 is made of rubber. Considering that when the safety gear 100 is braking, there will still be a certain distance of sliding between the buffer part 170 and the guide rail 300, so the buffer part 170 should not only have elasticity, but also have certain wear resistance to avoid damage caused by friction. Damage and the risk of damage falling off. Rubber has elasticity and wear resistance. Reinforcing agents, vulcanizing agents, accelerators, active agents, etc. can also be added to the buffer portion 170 made of rubber according to actual needs to increase its performance, reduce noise, and increase friction. force to reduce braking distance. While ensuring that users in the elevator do not panic, it also greatly improves safety.

Referring to Figure 3, after long-term use, the buffer portion 170 made of rubber will inevitably wear. The buffer portion 170 and the first clamp block 140 are set to be detachably connected, and the buffer portion 170 and the first clamp block 140 are fixed with screws 171. . During the safety inspection, if it is found that the buffer part 170 is worn and needs to be replaced, the buffer part 170 can be removed by removing the screw 171 and replaced with a new buffer part 170. There is no need to replace the first clamp block 140 or the entire safety gear 100. , the replacement process is convenient and cost-saving.

The same buffer portion 170 can also be detachably connected to the second jaw block 150 according to actual usage requirements, making the replacement process convenient and cost-saving. It should be noted that in other specific embodiments, the buffer portion 170 may also be made of polyetheretherketone (PEEK) according to actual usage requirements. Polyetheretherketone plastic raw material is an aromatic crystalline thermoplastic polymer material with a melting point of 334°C. It has high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, and irradiation and good electrical properties. It has excellent comprehensive properties and can replace traditional materials such as metals and ceramics in many special fields. The plastic's high temperature resistance, self-lubrication, wear resistance and fatigue resistance make it one of the most popular high-performance engineering plastics today.

In order to further reduce the noise when the safety gear 100 is braking, in this embodiment, the clamp base 110 , the first elastic member 120 , the second elastic member 160 , the lifting mechanism 130 , the first clamp block 140 and the second clamp block The gap between 150 is filled with sound-absorbing cotton (not shown in the figure). Since the sound-absorbing cotton is soft in texture, it will not interfere with the work of various mechanisms, and it can absorb the sound from the impact of the first clamp block 140 and the second clamp block 150 with the guide rail 300, thereby improving the user experience.

A safety gear 100 in this embodiment works as follows:

When the elevator overspeeds or falls, the speed limiter works. The speed limiter controls the first clamp block 140 and the second clamp block 150 to approach each other through the lifting mechanism 130. The guide rail 300 is provided on the first clamp block 140 and the second clamp block 150. between. Driven by the lifting mechanism 130, the buffer portions 170 of the first clamp block 140 and the second clamp block 150 close to the guide rail 300 come into contact with the working surface of the guide rail 300, thereby reducing noise and increasing the braking effect. By the first caliper block 140 , the second caliper block 150 and the buffer portion 170 working simultaneously, smooth braking through friction force is achieved.

The safety gear 100 has a good braking effect and greatly reduces the sound generated during braking, thus preventing people in the elevator from panicking.

Example 2

Referring to FIG. 4 , this embodiment provides a safety gear 200 , which is similar to Embodiment 1 and includes a clamp base 110 , a first elastic member 120 , a lifting mechanism 130 , and a symmetrically arranged first clamp block 140 and a second clamp block 140 . Block 150. The first clamp block 140 and the second clamp block 150 are arranged symmetrically, so that when braking, the safety gear 200 rubs against the guide rail 300 and is braked by friction force. The first clamp block 140 is connected to the clamp base 110 through a lifting mechanism 130, and the lifting mechanism 130 is configured to control the first clamp block 140 to approach the second clamp block 150 to achieve braking. The second clamp block 150 is connected to the clamp base 110 through the first elastic member 120 . A buffer portion 170 is provided on the side of the second jaw block 150 close to the first jaw block 140, and the buffer portion 170 reduces the impact that occurs when the first jaw block 140 moves.

The difference from Example 1 is:

The side of the buffer portion 170 away from the second jaw block 150 has a zigzag outer contour. Due to the noise and sliding generated during braking, the zigzag-shaped outer contour increases friction, and through the distance between each tooth, the heat is fully dissipated and the vibration is released, thereby reducing the sound caused by vibration and increasing the service life, and by increasing Friction reduces braking distance. It should be noted that in other specific embodiments, the buffer portion 170 may also be provided with a wavy outer contour according to actual needs.

In this embodiment, the buffer portion 170 has a hollow structure, and the hollow buffer portion 170 is filled with compressed air 180 . When the second clamp 150 moves to the guide rod, the buffer portion 170 contacts the guide rod, and the internal compressed air 180 is compressed by an external force, absorbs part of the external force, and is released when the pressure is greater than the external force, thereby achieving buffering and reducing vibration. In addition, the compressed air 180 weakens the sound more than the solid body, reducing the generation of noise, achieving smooth braking, and improving the user experience.

The safety gear 200 in this embodiment brakes smoothly and makes less noise during braking, which reduces the possibility of the user becoming afraid.

An elevator assembly includes an elevator car, a guide rail 300 and the above-mentioned safety gear 200. The safety gear 200 is connected to the elevator car, and multiple safety gears 200 can be installed as needed. For example, four safety gears are installed at the bottom of the elevator car, and four more are installed at the top of the elevator car. The guide rail 300 runs through the clamp base 110, and both sides of the guide rail 300 are detachably matched with the first clamp block 140 and the second clamp block 150 respectively. When the elevator car overspeeds or falls, the first cushion block and/or the second clamp block 150 Cooperate with the guide rail 300 to realize braking. The elevator component has high safety and low braking noise, preventing passengers from panicking.

It should be noted that in other specific implementations, depending on actual usage conditions, the elevator assembly may also include a safety gear 100 in Embodiment 1.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (2)

1. A safety gear, used to be installed in an elevator car, characterized in that it includes: The clamp base, the first elastic member, the lifting mechanism and the symmetrically arranged first clamp block and the second clamp block; The first clamp block is connected to the clamp base through the lifting mechanism; the second clamp block is connected to the clamp base through a first elastic member; the lifting mechanism is configured to control the first The clamp block is close to the second clamp block; a buffer portion is provided on a side of the first clamp block close to the second clamp block; The buffer portion is configured to reduce impact when the first clamp block moves; The buffer part is made of rubber; the buffer part is detachably connected to the first clamp block. Connect; the gap between the clamp base, the first elastic member, the lifting mechanism, the first clamp block and the second clamp block is filled with sound-absorbing cotton; The buffer part is strip-shaped; the buffer part extends from one end of the first clamp block away from the lifting mechanism to the other end of the buffer part; The buffer part is a hollow structure; the buffer part is filled with compressed gas; The side of the buffer portion away from the second jaw block is provided with a zigzag outer contour; The safety gear also includes a second elastic member; one end of the first clamp block away from the second clamp block is connected to the clamp base through the second elastic member; The lifting mechanism is connected to one end of the second clamp block close to the clamp base, and the lifting mechanism is configured to control the second clamp block to be close to the first clamp block; The buffer portion is also provided on a side of the second clamp block close to the first clamp block. 2. An elevator component, characterized by: Including an elevator car, a guide rail and the safety gear described in claim 1; The safety gear is connected to the elevator car; the guide rail penetrates the clamp seat; both sides of the guide rail are detachably matched with the first clamp block and the second clamp block respectively.