SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an elevator buffer device, which aims to solve the technical problems that the buffer effect of the conventional buffer device is not obvious, and when the impact generated by an elevator car exceeds the range which can be borne by the buffer device, the buffer device cannot protect the elevator car.
The utility model is implemented according to the following technical scheme:
an elevator buffer device comprises a bearing plate and a cross rod which are arranged in the bottom of an elevator shaft;
first springs are fixedly arranged on two sides of the upper end of the bearing plate, one end of each first spring is connected with the bearing plate through a bolt, the other end of each first spring is connected with a well wall of an elevator shaft through a bolt, and an airbag is arranged at the upper end of the bearing plate;
the cross rod is arranged at the lower end of the bearing plate and comprises a first support rod and a second support rod, the first support rod and the second support rod are arranged in a cross mode, one end of the first support rod can slide at the bottom end of the bearing plate, the other end of the first support rod can slide at the bottom wall of the elevator shaft, one end of the second support rod is fixedly connected with the bearing plate, and the other end of the second support rod is fixedly connected with the bottom wall of the elevator shaft;
a second spring and a first buffer mechanism are respectively arranged above and below the intersection point of the first supporting rod and the second supporting rod, one end of the second spring is connected with the first supporting rod, and the other end of the second spring is connected with the second supporting rod; the upper end of the first buffer mechanism is fixedly connected with the intersection point of the first support rod and the second support rod, and the lower end of the first buffer mechanism is fixedly connected with the bottom wall of the elevator shaft; and a second buffer mechanism is arranged on one side of the bottom end of the elevator shaft and is used for buffering when the first supporting rod slides under stress.
Because the setting of above-mentioned structure, form the first layer protection through set up air bag in the bearing plate upper end, be connected through the wall of a well of first spring and elevator well through bearing plate upper end both sides, through setting up second spring and first buffer gear respectively in the top and below of first bracing piece and second bracing piece intersect, elevator shaft bottom one side sets up second buffer gear, and movable crossbar, thereby when the elevator takes place to fall, thereby the car can reach the safety of stabilizing protection car and passenger gradually through buffering and resilience in-process.
Preferably, the rollers are arranged at two ends of the first supporting rod, the roller at one end of the first supporting rod can slide at the bottom end of the bearing plate, and the roller at the other end of the first supporting rod can slide at the bottom wall of the elevator shaft.
Preferably, the two ends of the second supporting rod are respectively provided with a fixed block, one end of the second supporting rod is fixedly connected with the bearing plate through the fixed block, and the other end of the second supporting rod is fixedly connected with the bottom wall of the elevator shaft through the fixed block.
Due to the arrangement of the structure, the first supporting rod capable of sliding and the second supporting rods fixed at the two ends can drive the bearing plate to reciprocate, so that the elevator can be stopped stably and slowly.
Preferably, the middle parts of the first supporting rod and the second supporting rod are hinged at a cross point, two ends of the first supporting rod are hinged with the roller respectively, and two ends of the second supporting rod are hinged with the fixing block respectively.
Preferably, the first buffer mechanism is provided with a first push rod and a first sliding cavity, the upper end of the first push rod is connected with a roller hinged to the intersection of the first support rod and the second support rod, a first sliding plate is arranged at the lower end of the first push rod, a third spring is fixedly arranged at the lower end of the first sliding plate, the first push rod can pull the first sliding plate and drive the third spring to slide up and down in the first sliding cavity, and the lower end of the third spring is fixedly connected with the bottom wall of the elevator shaft.
Due to the arrangement of the structure, the first buffer mechanism can not only protect the cross rod from being damaged, but also further realize the slow stability stop of the elevator
Preferably, the second buffer mechanism has a second sliding plate and a second sliding chamber, a fourth spring is fixedly arranged on one side of the second sliding plate, the fourth spring is fixedly arranged on one side of the second sliding plate, and when the second sliding plate is stressed, the second sliding plate and the fourth spring can slide left and right in the second sliding chamber.
Due to the arrangement of the structure, the second buffer mechanism can buffer the first supporting rod when the first supporting rod slides under stress, and the slow stopping stability of the elevator is further realized.
In conclusion, the beneficial effects of the utility model are as follows:
1. according to the elevator buffer device provided by the utility model, the falling impact force of the elevator car can be effectively reduced through the arrangement of the safety airbag, the first spring, the second spring, the first buffer mechanism and the second buffer mechanism, so that the elevator car can be slowly and stably stopped; the impact force generated when the elevator falls can be reduced to the maximum extent, and the secondary damage to the car and passengers caused by resilience of the device is reduced, so that the safety of the car and the passengers is protected.
2. The utility model has simple structure and high buffering efficiency, and can be used in various occasions.
The specific implementation mode is as follows:
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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 at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Embodiment 1, as shown in fig. 1, an elevator buffer comprises a bearing plate 11 and a cross bar disposed in a shaft bottom 3 of an elevator; first springs 12 are fixedly arranged on two sides of the upper end of a bearing plate 11, one end of each first spring 12 is connected with the bearing plate 11 through a bolt, the other end of each first spring 12 is connected with a well wall of an elevator well 2 through a bolt, and an airbag 13 is arranged at the upper end of the bearing plate 11; a speed sensor can be installed on the elevator guide rail, the safety air bag is connected with the speed sensor, when the car 1 passes the speed sensor installed on the elevator guide rail at an overspeed, the speed sensor triggers the safety air bag immediately, and the safety air bag is opened to form a first layer of protection.
The cross rod is arranged at the lower end of the bearing plate 11 and comprises a first supporting rod 6 and a second supporting rod 7, the first supporting rod 6 and the second supporting rod 7 are arranged in a cross mode, one end of the first supporting rod 6 can slide at the bottom end of the bearing plate 11, the other end of the first supporting rod 6 can slide on the bottom wall of the elevator shaft bottom 3, one end of the second supporting rod 7 is fixedly connected with the bearing plate 11, and the other end of the second supporting rod 7 is fixedly connected with the bottom wall of the elevator shaft bottom 3;
a second spring 10 and a first buffer mechanism 9 are respectively arranged above and below the intersection point of the first support rod 6 and the second support rod 7, one end of the second spring 10 is connected with the first support rod 6, and the other end of the second spring 10 is connected with the second support rod 7; the upper end of the first buffer mechanism 9 is fixedly connected with the intersection point of the first support rod 6 and the second support rod 7, and the lower end of the first buffer mechanism 9 is fixedly connected with the bottom wall of the elevator shaft bottom 3; a second buffer mechanism 4 is arranged on one side of the bottom end of the elevator shaft bottom 3, and the second buffer mechanism 4 is used for buffering when the first supporting rod 6 slides under stress.
Further, both ends of the first supporting rod 6 are provided with rollers 5, the roller 5 at one end of the first supporting rod 6 can slide at the bottom end of the bearing plate 11, and the roller 5 at the other end of the first supporting rod 6 can slide at the bottom wall of the elevator shaft bottom 3.
Further, both ends of the second support rod 7 are provided with fixing blocks 8, one end of the second support rod 7 is fixedly connected with the bearing plate 11 through the fixing blocks 8, and the other end of the second support rod 7 is fixedly connected with the bottom wall of the elevator shaft bottom 3 through the fixing blocks 8.
Furthermore, the middle parts of the first supporting rod 6 and the second supporting rod 7 are hinged at the cross point, the two ends of the first supporting rod 6 are respectively hinged with the roller 5, and the two ends of the second supporting rod 7 are respectively hinged with the fixing block 8.
Further, the first buffer mechanism 9 has a first push rod 901 and a first sliding cavity 902, the upper end of the first push rod 901 is connected to a roller hinged at the intersection of the first support rod 6 and the second support rod 7, the lower end of the first push rod 901 is provided with a first sliding plate 903, the lower end of the first sliding plate 903 is fixedly provided with a third spring 904, and the first push rod 901 can pull the first sliding plate 903 and drive the third spring 904 to slide up and down in the first sliding cavity 902.
Further, as shown in fig. 2, the second buffer mechanism 4 has a second sliding plate 401 and a second sliding chamber 402, a fourth spring 403 is fixedly disposed on the side of the second sliding plate 401, the fourth spring 403 is fixedly disposed on the side of the second sliding plate 401, and the second sliding plate 401 and the fourth spring 403 can slide left and right in the second sliding chamber 402 when the second sliding plate 401 is subjected to a force.
The working principle of the utility model is as follows: when the elevator falls, when the elevator car 1 passes the speed sensor arranged on the elevator guide rail at an overspeed, the speed sensor immediately triggers the safety airbag 13, and the safety airbag 13 is opened to form a first layer of protection; then the car 1 falls on the safety airbag 12, the safety airbag 13 drives the bearing plate 11 to press downwards, the first spring 12 is stretched by the impact force on the bearing plate 11, the first support rod 6 and the second support rod 7 move downwards and the distance is expanded, the second spring 10 is stretched at the moment, the first buffer mechanism 9 is compressed, the pulley 5 is contacted with the second sliding plate 401, the fourth spring 403 is pressed, when the car 1 descends to the bottommost point, the buffer process is finished at the moment, the fourth spring 403 rebounds, the pulley 5 is pushed, the first support rod 6 and the second support rod 7 move upwards and the distance is reduced, the bearing plate 11 moves upwards by the tension, and the rebounding motion is finished at the moment; the car 1 gradually reaches the stability in the process of buffering and rebounding so as to protect the safety of the car and passengers.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.