Limiting mechanism for counterweight filler of elevator

Abstract

The utility model discloses an elevator counterweight filler limiting mechanism in the elevator field, which comprises a mounting frame, mounting grooves are arranged on the left side and the right side in the mounting frame, counterweight filler is slidably connected in the mounting grooves, a limiting component is arranged on the front side of the mounting frame, mounting blocks are symmetrically and fixedly connected to the upper portion of the front side of the mounting frame, and the limiting component is fixedly connected with the counterweight filler. According to the elevator counterweight block limiting mechanism, fixing of the extrusion block is relieved through the clamping assembly by pressing the extrusion block, and then the extrusion block descends by pressing the extrusion block, so that the inclined surface of the extrusion block extrudes the inclined surface of the stress block, and the stress block moves; the connecting springs are extruded, meanwhile, the inserting rods are embedded in the inserting holes, the counterweight block is limited and fixed, cooperation of threaded rods and bolts is avoided, and therefore the counterweight block can be conveniently and rapidly limited, time and labor are saved, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator counterweight limiting mechanism. Background Technology

[0002] The counterweight is a component of the elevator traction system. Its function is to reduce the power of the traction motor and the torque on the traction sheave and worm gear. There is no fixed form for the structure of the counterweight, but regardless of the form, four guide shoes should be installed at the four corners of the counterweight to ensure that the counterweight runs vertically along the counterweight guide rail when the elevator is running.

[0003] Chinese patent CN217076637U discloses an elevator counterweight clamping and limiting device, including a counterweight block mounted on a counterweight frame. A limiting rod and a threaded rod are located inside the lower part of the counterweight frame. Two limiting rods are symmetrically arranged on both sides of the threaded rod, and the counterweight block passes through the limiting rod and the threaded rod from top to bottom. This elevator counterweight clamping and limiting device achieves stable and effective limiting of the counterweight block through the cooperation of the threaded rod, pressure plate, and fastening sleeve, preventing shaking during use. However, the limiting device used in the aforementioned patent, which uses a fastening sleeve and pressure plate to limit the counterweight block, is difficult to disassemble and assemble. Furthermore, the use of the threaded rod and limiting nut makes clamping and limiting time-consuming and labor-intensive, reducing installation efficiency. Therefore, we propose an elevator counterweight limiting mechanism. Utility Model Content

[0004] The purpose of this utility model is to provide an elevator counterweight limiting mechanism to solve the problems mentioned in the background art, which use a fastening sleeve and pressure plate to limit the counterweight, making it difficult to disassemble and assemble, and using a threaded rod and a limiting nut to tighten the limiting device, which is time-consuming and labor-intensive, reducing installation efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator counterweight limiting mechanism, including a mounting frame, mounting grooves are provided on the left and right sides inside the mounting frame, a counterweight is slidably connected inside the mounting grooves, and a limiting component is provided on the front side of the mounting frame;

[0006] The upper front side of the mounting bracket is symmetrically fixedly connected with mounting blocks, and the mounting blocks are internally connected with snap-fit ​​components;

[0007] The limiting component includes a socket, a rod, a connecting plate, a connecting spring, a force-bearing block, and a pressing block. The counterweight has symmetrically through-holes on its front side. The rod is slidably connected through the front side of the mounting groove. The connecting plate is fixedly connected to the front end of the rod. The connecting spring is sleeved on the outside of the rod. The force-bearing block is fixedly connected to the upper front side of the connecting plate. The pressing block is fixedly connected to the front side of the snap-fit ​​component.

[0008] As a further description of the above technical solution:

[0009] The front and rear ends of the connecting spring are fixedly connected to the rear side of the connecting plate and the front side of the mounting bracket, respectively.

[0010] As a further description of the above technical solution:

[0011] Both the top of the force-bearing block and the bottom of the compression block are provided with inclined surfaces.

[0012] As a further description of the above technical solution:

[0013] The snap-fit ​​assembly includes a T-slot, a snap hole, a T-block, a contraction cavity, a return spring, a circular plate, and a snap post. The front side of the mounting block has a T-slot, and the left side of the mounting block has symmetrical through-holes. The T-block is slidably connected inside the T-slot. The left side of the T-block has a contraction cavity, and a return spring is fixedly connected to one side of the contraction cavity. The end of the return spring is fixedly connected to a circular plate, and a snap post is fixedly connected to one side of the circular plate. The compression block is fixedly connected to the front side of the T-block.

[0014] As a further description of the above technical solution:

[0015] The circular plate is slidably connected to the inside of the contraction cavity, and the outer wall of the circular plate is in contact with the inner wall of the contraction cavity.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The counterweight limiting mechanism of this elevator releases the clamping block by using a snap-fit ​​assembly. Then, by pressing the clamping block, it descends, causing the inclined surface of the clamping block to press against the inclined surface of the load-bearing block. This causes the load-bearing block to move, compressing the connecting spring. Simultaneously, the insert rod is embedded in the insertion hole, limiting and fixing the counterweight. This avoids the need for threaded rods and bolts, making it convenient to quickly limit the counterweight, saving time and effort, and improving installation efficiency.

[0018] The elevator counterweight limiting mechanism works by pressing the locking pin, causing it to disengage from the upper locking hole. Simultaneously, this moves the circular plate, compressing the return spring. As the compression block descends, the T-block descends, aligning the locking pin with the bottom locking hole. The return spring then resets, causing the circular plate to move the locking pin back into the locking hole, thus securing the compression block. This prevents the connecting plate from resetting, prevents the insertion rod from disengaging from the insertion hole, improves the stability of the limiting mechanism, and avoids loosening. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of an elevator counterweight limiting mechanism proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the limiting component structure of an elevator counterweight limiting mechanism proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the insertion hole structure of an elevator counterweight limiting mechanism proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the snap-fit ​​component structure of an elevator counterweight limiting mechanism proposed in this utility model.

[0023] In the diagram: 100, mounting bracket; 200, mounting groove; 300, counterweight; 310, insertion hole; 320, insertion rod; 330, connecting plate; 340, connecting spring; 350, force-bearing block; 360, compression block; 400, mounting block; 410, T-slot; 420, locking hole; 430, T-block; 440, contraction chamber; 450, return spring; 460, circular plate; 470, locking post. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] This utility model provides an elevator counterweight limiting mechanism that avoids the use of threaded rods and bolts, thus facilitating quick and easy limiting of the counterweight, saving time and effort, and improving installation efficiency. Please refer to [link / reference]. Figure 1-4 The mounting bracket 100 includes mounting slots 200 on its left and right sides, with counterweights 300 slidably connected inside the mounting slots 200. A limit assembly is provided on the front side of the mounting bracket 100.

[0028] Please refer to it again. Figure 1 Mounting blocks 400 are symmetrically fixedly connected to the upper front side of mounting bracket 100, and snap-fit ​​components are connected inside mounting blocks 400.

[0029] Please refer to it again. Figure 2 and Figure 3 The limiting component includes a socket 310, a rod 320, a connecting plate 330, a connecting spring 340, a force-bearing block 350, and a pressing block 360;

[0030] Please refer to it again. Figure 2 and Figure 3 A symmetrical through-hole 310 is provided on the front side of the counterweight 300, and a through-hole 320 is uniformly slidably connected to the front side of the mounting groove 200. A connecting plate 330 is fixedly connected to the front end of the through-hole 320.

[0031] Please refer to it again. Figure 2 A connecting spring 340 is sleeved on the outside of the insertion rod 320, a force-bearing block 350 is fixedly connected to the upper front side of the connecting plate 330, and a pressing block 360 is fixedly connected to the front side of the snap-fit ​​assembly.

[0032] In summary, by releasing the clamping block 360 from its fixation using the snap-fit ​​assembly, and then pressing down on the clamping block 360, the clamping block 360 is lowered, causing its inclined surface to press against the inclined surface of the force-bearing block 350. This causes the force-bearing block 350 to move, pressing against the connecting spring 340. Simultaneously, the insertion rod 320 is embedded in the insertion hole 310, limiting and fixing the counterweight block 300. This avoids the need for threaded rods and bolts, facilitating quick and easy positioning of the counterweight block 300, saving time and effort, and improving installation efficiency.

[0033] Please refer to it again. Figure 2 The front and rear ends of the connecting spring 340 are fixedly connected to the rear side of the connecting plate 330 and the front side of the mounting bracket 100, respectively.

[0034] Please refer to it again. Figure 2 Both the top of the force-bearing block 350 and the bottom of the extrusion block 360 are provided with inclined surfaces.

[0035] Please refer to it again. Figure 4 The snap-fit ​​assembly includes a T-slot 410, a snap hole 420, a T-block 430, a contraction cavity 440, a return spring 450, a circular plate 460, and a snap post 470. The mounting block 400 has a T-slot 410 on its front side and a snap hole 420 symmetrically through it on its left side. The T-slot 430 is slidably connected inside the T-slot 410. The contraction cavity 440 is located on the left side of the T-block 430. A return spring 450 is fixedly connected to one side of the contraction cavity 440. A circular plate 460 is fixedly connected to the end of the return spring 450. A snap post 470 is fixedly connected to one side of the circular plate 460. The compression block 360 is fixedly connected to the front side of the T-block 430.

[0036] Please refer to it again. Figure 4 The circular plate 460 is slidably connected to the inside of the contraction cavity 440, and the outer wall of the circular plate 460 is in contact with the inner wall of the contraction cavity 440.

[0037] In summary, by pressing the locking pin 470, the locking pin 470 is disengaged from the upper locking hole 420, which simultaneously moves the circular plate 460, compressing the return spring 450. When the compression block 360 descends, the T-shaped block 430 descends, aligning the locking pin 470 with the bottom locking hole 420. The return spring 450 then returns to its original position, causing the circular plate 460 to move the locking pin 470 back to its original position, thus embedding the locking pin 470 into the locking hole 420. This fixes the compression block 360, preventing the connecting plate 330 from resetting and preventing the insertion rod 320 from exiting the insertion hole 310, thereby improving the stability of the limit and preventing loosening.

[0038] In practical use, when limiting the counterweight 300, those skilled in the art press the locking pin 470, causing it to disengage from the upper locking hole 420. Simultaneously, this moves the circular plate 460, compressing the return spring 450 and releasing the restriction on the compression block 360. Pressing the compression block 360 causes it to descend, resulting in the inclined surface of the compression block 360 pressing against the inclined surface of the force-bearing block 350. This causes the force-bearing block 350 to move, compressing the connecting spring 340 and simultaneously causing the insertion rod... 320 is embedded in the insertion hole 310 to limit and fix the counterweight 300. When the pressing block 360 descends, the T-shaped block 430 descends, causing the locking post 470 to align with the bottom locking hole 420. The reset spring 450 is reset, which causes the circular plate 460 to drive the locking post 470 to reset, so that the locking post 470 is embedded in the locking hole 420, thus fixing the pressing block 360 and preventing the connecting plate 330 from resetting, thus preventing the insertion rod 320 from exiting the insertion hole 310.

[0039] 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, material, 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, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Although embodiments of the present 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 present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An elevator counterweight limiting mechanism, comprising a mounting frame (100), wherein mounting grooves (200) are provided on the left and right sides of the mounting frame (100), and a counterweight (300) is slidably connected inside the mounting grooves (200), characterized in that: The front side of the mounting frame (100) is provided with a limiting assembly; The upper part of the front side of the mounting frame (100) is fixedly connected with a mounting block (400) in a symmetrical manner, and the inside of the mounting block (400) is connected with a clamping assembly; The limiting assembly comprises a bushing (310), a plug rod (320), a connecting plate (330), a connecting spring (340), a stress block (350) and an extrusion block (360), the front side of the counterweight block (300) is symmetrically provided with the bushing (310), the front side of the mounting groove (200) is uniformly connected with the plug rod (320) in a sliding manner, the front end of the plug rod (320) is fixedly connected with the connecting plate (330), the outside of the plug rod (320) is sleeved with the connecting spring (340), the front side of the upper part of the connecting plate (330) is fixedly connected with the stress block (350), and the front side of the clamping assembly is fixedly connected with the extrusion block (360).

2. The elevator counterweight limit mechanism of claim 1, wherein: The front and rear ends of the connecting spring (340) are fixedly connected with the rear side of the connecting plate (330) and the front side of the mounting frame (100) respectively.

3. The elevator counterweight limit mechanism of claim 2, wherein: The top of the stress block (350) and the bottom of the extrusion block (360) are provided with inclined surfaces.

4. The elevator counterweight limit mechanism of claim 1, wherein: The clamping assembly comprises a T-shaped groove (410), a clamping hole (420), a T-shaped block (430), a contraction cavity (440), a reset spring (450), a circular plate (460) and a clamping column (470), the front side of the mounting block (400) is provided with the T-shaped groove (410), the left side of the mounting block (400) is symmetrically provided with the clamping hole (420), the inside of the T-shaped groove (410) is connected with the T-shaped block (430) in a sliding manner, the left side of the T-shaped block (430) is provided with the contraction cavity (440), one side of the contraction cavity (440) is fixedly connected with the reset spring (450), the end of the reset spring (450) is fixedly connected with the circular plate (460), one side of the circular plate (460) is fixedly connected with the clamping column (470), and the extrusion block (360) is fixedly connected to the front side of the T-shaped block (430).

5. The elevator counterweight limit mechanism of claim 4, wherein: The circular plate (460) is connected to the inside of the contraction cavity (440) in a sliding manner, and the outside wall of the circular plate (460) is attached to the inside wall of the contraction cavity (440).

Images