Car bottom diversion sheave mounting structure for elevator
Through the coordination of the plug structure of the safety baffle and the installation of the defining frame and the locking cylinder, the problem of the bolt deflection of the reverse rope wheel is solved, and the stable fixation of the reverse rope wheel is achieved, and the smooth operation of the elevator is improved.
Patent Information
- Application Number
- CN202422383179.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-29
AI Technical Summary
In existing elevators, the bolt installation method of the reverse rope wheel causes it to deflect during the elevator to shake, affecting the position accuracy and the stability of the elevator.
The plug-in structure of the safety baffle and the installation defining frame is adopted, combined with the elastically movable locking cylinder and locking column, through the cooperation of the plug-in pin and the nut, the stable fixation of the reverse rope shaft pin is achieved to prevent deflection.
It improves the installation stability of the reverse rope wheel, avoids deflection, and enhances the running stability of the elevator.
Smart Images
Figure CN223117883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, in particular to an installation structure of a counterweight sheave at the bottom of an elevator car. Background Art
[0002] The counterweight sheave device is an indispensable part of a vertical traction elevator. It is assembled with the car and is responsible for the transmission of the steel wire rope power, and cooperates with the guide shoes and guide rails to realize the function of the vertical lifting and lowering of the car. The counterweight sheave is usually installed between two mounting brackets with bolts. During the installation process, the installation of the counterweight sheave shaft and the mounting bracket is fixedly connected by bolts. Due to the continuous use of the elevator, during the lifting and lowering of the elevator, different degrees of shaking will inevitably occur. As the use time of the elevator goes by, with the bolt installation method, the bolts may deflect, thus affecting the position accuracy of the counterweight sheave, and then the counterweight sheave needs to be adjusted, affecting the smoothness of the elevator. For this reason, we propose an installation structure of a counterweight sheave at the bottom of an elevator car. Content of the Utility Model
[0003] The utility model provides an installation structure of a counterweight sheave at the bottom of an elevator car, which solves the problems raised in the above background art.
[0004] To achieve the above object, the utility model is realized through the following technical solutions: An installation structure of a counterweight sheave at the bottom of an elevator car, including a counterweight sheave and a counterweight sheave mounting bracket. The counterweight sheave is composed of a counterweight sheave body and a counterweight sheave shaft pin. The counterweight sheave is installed on the counterweight sheave mounting bracket. The counterweight sheave shaft pin is at the bottom of the counterweight sheave mounting bracket. The outside of the counterweight sheave shaft pin abuts against a U-shaped installation limiting bracket. The two ends of the installation limiting bracket pass through the counterweight sheave mounting bracket, and the two ends of the installation limiting bracket extending out of the counterweight sheave mounting bracket are jointly inserted with a safety baffle. The safety baffle is in contact with the counterweight sheave mounting bracket, and a plug pin that abuts against the safety baffle is inserted into the counterweight sheave mounting bracket. A lock cylinder that can elastically move is connected to the plug pin, and the lock cylinder is inserted into the safety baffle. At the same time, a lock column that can elastically move is movably connected inside the counterweight sheave shaft pin. The lock column is inserted into the installation limiting bracket, and the lock column is in contact with the plug pin.
[0005] Optionally, the surface of the counterweight sheave shaft pin in contact with the nut is a flat surface. A first spring is fixedly connected to the bottom end of the lock cylinder, and the lock cylinder can completely extend into the plug pin. The bottom end of the first spring is fixed to the plug pin.
[0006] Optionally, the bottom end of the plug pin is circular. One end of the lock column can extend out of the counterweight sheave shaft pin and be horizontally inserted into the installation limiting bracket. The end of the lock column in contact with the plug pin is circular.
[0007] Optionally, a second spring is sleeved on the locking column. One end of the second spring is fixed on the reverse rope wheel axle pin near the protruding end of the locking column, and the other end of the second spring is fixed to the locking column near one end of the insertion pin.
[0008] Optionally, threads are provided at both ends of the installation limiting frame, and nuts are threadedly connected to both ends of the installation limiting frame. The bottoms of the nuts are in contact with the top of the safety baffle.
[0009] The utility model has the following beneficial effects:
[0010] 1. For the installation structure of the bottom reverse rope wheel of the elevator, the safety baffle is inserted into both ends of the installation limiting frame, so that the safety baffle can limit the installation of the installation limiting frame. Under the insertion of the locking cylinder, the safety baffle can be locked, so that the safety baffle can play a safety role, making its installation more stable.
[0011] 2. For the installation structure of the bottom reverse rope wheel of the elevator, under the push of the insertion pin, the locking column can limit the reverse rope wheel axle pin, and under the insertion of the insertion pin, the position of the reverse rope wheel axle pin can be further limited, avoiding possible deflection of the reverse rope wheel axle pin, and making its installation more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic structural diagram of the utility model;
[0013] Figure 2 is a schematic cross-sectional structural diagram of the utility model;
[0014] Figure 3 is a schematic structural diagram of the connection of the reverse rope wheel axle pin of the utility model;
[0015] Figure 4 is a schematic structural diagram of part A of the utility model.
[0016] In the figure: 1, reverse rope wheel body; 2, reverse rope wheel axle pin; 3, reverse rope wheel mounting bracket; 4, installation limiting frame; 5, nut; 6, insertion pin; 7, safety baffle; 8, locking cylinder; 9, first spring; 10, locking column; 11, second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1 to 4 , an installation structure of a counterweight sheave for an elevator car bottom, which includes a counterweight sheave and a counterweight sheave mounting bracket 3. The counterweight sheave is composed of a counterweight sheave body 1 and a counterweight sheave axle pin 2. The counterweight sheave is mounted on the counterweight sheave mounting bracket 3. The counterweight sheave axle pin 2 is at the bottom of the counterweight sheave mounting bracket 3. An L-shaped installation limiting bracket 4 abuts against the outer side of the counterweight sheave axle pin 2, so that the counterweight sheave mounting bracket 3 and the installation limiting bracket 4 can wrap and lock the counterweight sheave axle pin 2, thereby realizing the fixation of the counterweight sheave axle pin 2. The two ends of the installation limiting bracket 4 pass through the counterweight sheave mounting bracket 3, and the two ends of the installation limiting bracket 4 extending out of the counterweight sheave mounting bracket 3 are jointly inserted with a safety baffle 7. Under the insertion of the safety baffle 7, the safety baffle 7 can block the installation limiting bracket 4, effectively avoiding the deviation caused by the loosening of the installation limiting bracket 4, thus playing an insurance effect. The safety baffle 7 is in contact with the counterweight sheave mounting bracket 3, and a plug pin 6 that abuts against the safety baffle 7 is inserted into the counterweight sheave mounting bracket 3. Under the abutting action of the plug pin 6, the friction force between them can be increased, so that the insertion of the safety baffle 7 is more firm. And a lock cylinder 8 that can move elastically is connected to the plug pin 6. The lock cylinder 8 can move up and down along a fixed track on the plug pin 6. The lock cylinder 8 is inserted into the safety baffle 7. Under the insertion of the lock cylinder 8, the position of the safety baffle 7 can be limited, effectively preventing the safety baffle 7 from deviating and disengaging from the inserted state with the installation limiting bracket 4. At the same time, a lock post 10 that can move elastically is movably connected inside the counterweight sheave axle pin 2. The lock post 10 can move horizontally along a fixed track on the counterweight sheave axle pin 2. The lock post 10 is inserted into the installation limiting bracket 4, and the lock post 10 is in contact with the plug pin 6. Under the push of the plug pin 6, the lock post 10 can move, and then be inserted into the installation limiting bracket 4.
[0019] Please refer to Figures 1 to 4 , the surface of the counterweight sheave axle pin 2 in contact with the nut 5 is a flat surface, so that the fixation of the position of the counterweight sheave axle pin 2 can be more stable. The bottom end of the lock cylinder 8 is fixedly connected with a first spring 9. The lock cylinder 8 can be completely inserted into the plug pin 6. The bottom end of the first spring 9 is fixed to the plug pin 6. Under the action of the elastic force of the first spring 9, the lock cylinder 8 can be smoothly inserted into the safety baffle 7, so as to lock the position of the safety baffle 7.
[0020] Please refer to Figures 1 to 4 , the bottom end of the plug pin 6 is circular. One end of the lock post 10 can extend out of the counterweight sheave axle pin 2 and be horizontally inserted into the installation limiting bracket 4. The end of the lock post 10 in contact with the plug pin 6 is circular. Through the circular contact of the plug pin 6 and the lock post 10, the plug pin 6 can more smoothly push the lock post 10 to move.
[0021] Please refer to Figures 1 to 4A second spring 11 is sleeved on the locking column 10, one end of the second spring 11 is fixed on the anti-ropes shaft pin 2 near the protruding end of the locking column 10, and the other end of the second spring 11 is fixed to the end of the locking column 10 near the plug pin 6. Under the action of the elastic force of the second spring 11, the locking column 10 can automatically move into the anti-ropes shaft pin 2 when disassembling, so as to facilitate its disassembly and maintenance.
[0022] See also Figures 1 to 4 , both ends of the installation and limiting frame 4 are provided with threads, and both ends of the installation and limiting frame 4 are threadedly connected with nuts 5, and the bottom ends of the nuts 5 are abutted against the top of the safety baffle 7. When the nuts 5 are screwed and installed, the installation and limiting frame 4 can be finally fixed.
[0023] When the locking nut 5 is screwed on the locking nut 5, the locking nut 5 is tightened to the locking nut 5, and the locking nut 5 is tightened to the locking nut 5.
[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.
[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An installation structure of a counterweight sheave for an elevator car bottom, comprising a counterweight sheave and a counterweight sheave mounting bracket (3), the counterweight sheave being composed of a counterweight sheave body (1) and a counterweight sheave axle pin (2), the counterweight sheave being mounted on the counterweight sheave mounting bracket (3), characterized in that: The counterweight sheave axle pin (2) is located at the bottom of the counterweight sheave mounting bracket (3). An outer side of the counterweight sheave axle pin (2) abuts against a U-shaped mounting limiting bracket (4). Two ends of the mounting limiting bracket (4) pass through the counterweight sheave mounting bracket (3). The two ends of the mounting limiting bracket (4) extending out of the counterweight sheave mounting bracket (3) are jointly inserted with a safety baffle (7). The safety baffle (7) is in contact with the counterweight sheave mounting bracket (3). A plug pin (6) that abuts against the safety baffle (7) is inserted into the counterweight sheave mounting bracket (3). An elastically movable locking cylinder (8) is connected to the plug pin (6). The locking cylinder (8) is inserted into the safety baffle (7). At the same time, a lock post (10) that is elastically movable is movably connected inside the counterweight sheave axle pin (2). The lock post (10) is inserted into the mounting limiting bracket (4). The lock post (10) is in contact with the plug pin (6).
2. The installation structure of the counterweight sheave for an elevator car bottom according to claim 1, characterized in that: A surface of the counterweight sheave axle pin (2) in contact with a nut (5) is a flat surface. A bottom end of the locking cylinder (8) is fixedly connected with a first spring (9). The locking cylinder (8) can completely extend into the plug pin (6). A bottom end of the first spring (9) is fixed to the plug pin (6).
3. The installation structure of a counterweight sheave for an elevator car bottom according to claim 2, characterized in that: A bottom end of the plug pin (6) is circular. One end of the lock post (10) can extend out of the counterweight sheave axle pin (2) and is horizontally inserted into the mounting limiting bracket (4). An end of the lock post (10) in contact with the plug pin (6) is circular.
4. A mounting structure of a counterweight sheave for an elevator car bottom according to claim 3, characterized in that: A second spring (11) is sleeved on the lock post (10). One end of the second spring (11) is fixed on the counterweight sheave axle pin (2) near the end where the lock post (10) extends out. The other end of the second spring (11) is fixed to the lock post (10) near an end of the plug pin (6).
5. The installation structure of the counterweight sheave for an elevator car bottom according to claim 1, characterized in that: Threads are provided at both ends of the mounting limiting bracket (4). Nuts (5) are threadedly connected to both ends of the mounting limiting bracket (4). Bottom ends of the nuts (5) abut against tops of the safety baffle (7).