Safe locking type elevator weighing device

By designing a safety locked lift weighing device that supports components and pressure sensors in the lift, the stability and safety issues of the elevator when loading cargo at high altitudes are solved, achieving higher safety and stability.

CN223016419UActive Publication Date: 2025-06-24SUZHOU XINGENA MEASUREMENT & CONTROL TECH CO LTD
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Patent Information

Application Number
CN202422350290.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-06-24
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The lift has stability and safety problems when loading cargo at high altitudes, especially because the load-bearing plate shakes due to the instantaneous impact force of the cargo, and the staff's cooperation error or wrong operation may cause the lift to start.

Method used

A safety lock-type lift weighing device is designed, including a support assembly and a pressure sensor. The support assembly provides support through the mounting frame, sliding block, support plate and return force assembly to reduce the shaking of the bearing plate; the pressure sensor detects the pressure of the support roller, and when the setting requirements are met, the rotating motor is locked to prevent the lift from starting.

Benefits of technology

It improves the stability and safety of the load-bearing plate when loading cargo at high altitudes, prevents the lift from starting due to errors or misoperation of staff cooperation, and further improves the safety of loading cargo at high altitudes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safe locking type elevator weighing device, comprising an elevating track and a bearing frame, the elevating track is provided with two rotating chains used for elevating and pushing the bearing frame and a rotating motor used for rotating the two rotating chains; the high-altitude cargo loading device comprises a bearing frame and further comprises a bearing plate arranged on the bearing frame and two gravity sensors, the two gravity sensors are located at the bottom of the bearing frame, one side of the bearing plate is located on the sides, away from the bottom of the bearing frame, of the two gravity sensors, and the bearing frame is provided with a supporting assembly used for supporting and locking the bearing plate when high-altitude cargo loading is conducted. Through the arrangement of the supporting assembly, when goods are loaded at high positions, supporting force is provided for the bearing plate, so that shaking of the bearing plate caused by instant impact force of the goods is reduced, and the stability and safety of the bearing plate are improved when the goods are loaded at the high positions.
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Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and specifically relates to a safety locking type elevator weighing device. Background Art

[0002] When an elevator is in use, in order to improve the safety of cargo lifting, a gravity sensor is arranged on the cargo bearing plate to detect the weight of the cargo. When the weight borne on the cargo bearing plate exceeds the set threshold value, an alarm will be issued, and the driving motor of the elevator will be locked to prevent it from starting, so as to improve the safety of the elevator for cargo lifting operations.

[0003] When the cargo is lowered from a high place, during the process of placing the cargo on the bearing plate, due to the placing force and drop, a large instantaneous impact force is generated on the bearing plate by the cargo, which affects the stability and safety of the bearing plate during high-altitude cargo loading. Moreover, during high-altitude cargo loading, it is easy for the elevator to start due to mistakes or misoperations in the cooperation between workers, thus reducing the safety during high-altitude cargo loading.

[0004] Therefore, there is an urgent need for a safety locking type elevator weighing device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety locking type elevator weighing device to solve the problems existing in the elevator during high-altitude cargo loading in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A safety locking type elevator weighing device, including a lifting track and a bearing frame. The lifting track is provided with two rotating chains for lifting and pushing the bearing frame and a rotating motor for rotating the two rotating chains. It also includes a bearing plate and two gravity sensors arranged on the bearing frame. The two gravity sensors are located at the bottom of the bearing frame. One side of the bearing plate is located on the side of the two gravity sensors away from the bottom of the bearing frame. The bearing frame is provided with a support assembly for supporting and locking the bearing plate during high-altitude cargo loading;

[0007] The support assembly includes two symmetrically arranged mounting frames fixedly connected to the side of the bearing frame away from the bearing plate. The two mounting frames are connected with sliding blocks through a driving assembly. One side of the two sliding blocks away from the bearing plate is connected with a support plate through a connecting assembly. One end of the two support plates close to the lifting track is connected with a support roller through a pressure sensor. A plurality of support holes are opened on one side of the lifting track close to the two support rollers.

[0008] The connecting component includes two symmetrically arranged fixing plates fixedly connected to the side of the sliding block close to the support plate. A connecting plate is connected between the two fixing plates through a rotating shaft. One end of the connecting plate is connected to the support plate, and the rotating shaft is provided with a return force component for applying a return force to the support plate.

[0009] The return force component includes a return force plate arranged at one end of the rotating shaft. A torsion spring is sleeved on the side wall of the rotating shaft, and the two ends of the torsion spring are respectively connected to the return force plate and the fixing plate.

[0010] The two mounting frames are provided with a guiding component for guiding the movement of the sliding block. The guiding component includes a dovetail groove opened on the bottom wall of the mounting frame. A dovetail plate is slidably connected to the dovetail groove, and one end of the dovetail plate is connected to the sliding block.

[0011] The driving component includes a threaded rod rotatably connected inside the mounting frame. The sliding block is threadedly connected to the threaded rod. A driving motor is fixedly connected to the side of the mounting frame away from the lifting track, and the output end of the driving motor is connected to the threaded rod.

[0012] Two baffles are fixedly connected to the sides of the two mounting frames away from the bearing plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through the setting of the support component, when loading goods at a high place, the support component provides a support force for the bearing plate, thereby reducing the shaking of the bearing plate caused by the instantaneous impact force of the goods, and further improving the stability and safety of the bearing plate during high-altitude goods loading. At the same time, when the pressure sensor detects that the pressure of the support roller reaches the set requirement, the controller locks the rotating motor to prevent it from starting, thereby avoiding the start of the elevator due to mistakes or misoperations in the cooperation between staff, and further enhancing the safety of the elevator during high-altitude goods loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of the rotating motor of the present utility model;

[0017] Figure 3 is a schematic diagram of the structure of the support component of the present utility model;

[0018] Figure 4 is a schematic diagram of the structure of the gravity sensor of the present utility model;

[0019] Figure 5 is a schematic diagram of the internal structure of the driving component of the present utility model;

[0020] Figure 6 For Figure 5 The enlarged view at position A in the figure.

[0021] In the figure: 101, lifting track; 102, carrying frame; 103, rotating chain; 104, rotating motor; 2, carrying plate; 3, gravity sensor; 401, mounting frame; 402, sliding block; 403, support plate; 404, pressure sensor; 405, support roller; 406, support hole; 501, fixing plate; 502, rotating shaft; 503, connecting plate; 601, return plate; 602, torsion spring; 701, dovetail groove; 702, dovetail plate; 801, threaded rod; 802, driving motor; 9, baffle. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figures 1-6 , a safety locking type elevator weighing device in the figure, including a lifting track 101 and a carrying frame 102. The lifting track 101 is provided with two rotating chains 103 for lifting and pushing the carrying frame 102 and a rotating motor 104 for rotating the two rotating chains 103. It also includes a carrying plate 2 and two gravity sensors 3 arranged on the carrying frame 102. The two gravity sensors 3 are located at the bottom of the carrying frame 102, and one side of the carrying plate 2 is located on the side of the two gravity sensors 3 away from the bottom of the carrying frame 102. The carrying frame 102 is provided with a support assembly for supporting and locking the carrying plate 2 during high-altitude cargo loading;

[0025] The support assembly includes two symmetrically arranged mounting frames 401 fixedly connected to the side of the carrying frame 102 away from the carrying plate 2. The two mounting frames 401 are connected with a sliding block 402 through a driving assembly. The side of the two sliding blocks 402 away from the carrying plate 2 is connected with a support plate 403 through a connecting assembly. One end of the two support plates 403 close to the lifting track 101 is connected with a support roller 405 through a pressure sensor 404. A plurality of support holes 406 are opened on one side of the lifting track 101 close to the two support rollers 405;

[0026] It should be noted here that: through the setting of the supporting component, when loading goods at a high place, it provides support force for the bearing plate 2, thereby reducing the shaking of the bearing plate 2 caused by the instantaneous impact force of the goods, and further improving the stability and safety of the bearing plate 2 during high-place goods loading. At the same time, when the pressure sensor 404 detects that the pressure of the supporting roller 405 reaches the set requirement, the controller locks the rotating motor 104 to prevent it from starting, thus avoiding the start of the elevator due to the cooperation error or misoperation between staff, and further enhancing the safety of the elevator during high-place goods loading.

[0027] It is worth noting that: as an existing technology, the specific structure and working principle of the elevator have been mastered by those skilled in the art, and will not be elaborated here.

[0028] Please refer to Figure 5 and Figure 6 , the connection component in the figure includes two symmetrically arranged fixing plates 501 fixedly connected to the side of the sliding block 402 close to the support plate 403. A connecting plate 503 is connected between the two fixing plates 501 through a rotating shaft 502. One end of the connecting plate 503 is connected to the support plate 403, and a return force component for applying a return force to the support plate 403 is provided on the rotating shaft 502;

[0029] It should be noted here that: through the setting of the connection component, a rotational connection relationship is formed between the support plate 403 and the sliding block 402, thus facilitating the removal and contraction of the support plate 403.

[0030] Please refer to Figure 5 and Figure 6 , the return force component in the figure includes a return force plate 601 provided at one end of the rotating shaft 502. A torsion spring 602 is sleeved on the side wall of the rotating shaft 502, and both ends of the torsion spring 602 are respectively connected to the return force plate 601 and the fixing plate 501;

[0031] It should be noted here that: through the setting of the return force component, when the connection between the support plate 403 and the sliding block 402 crosses the baffle 9, the support plate 403 will be driven to rotate under the elastic action of the return force component, so that the support plate 403 moves out of the installation frame 401.

[0032] Working principle: When using the elevator to lift goods, first place the goods on the bearing plate 2. During the placement process of the goods, the gravity sensor 3 can be used to weigh the goods placed on the bearing plate 2. If the weight of the goods placed on the bearing plate 2 exceeds the set threshold, the gravity sensor 3 will send an electrical signal to the controller, and the controller will be used to control the alarm to sound an alarm, thereby warning the staff. Furthermore, the stacking weight of the goods on the bearing plate 2 is effectively controlled, and the safety performance of the elevator is further improved. At the same time that the controller controls the alarm to sound, the start switch of the rotating motor 104 will be powered off to lock the rotating motor 104 so that it cannot be started, thus avoiding the rough and rigid operation of the staff;

[0033] After the goods are placed on the bearing plate 2 and the weight detected by the gravity sensor 3 meets the lifting requirements, the rotating motor 104 can be started, which drives the rotating chain 103 to rotate, thereby realizing the lifting operation of the goods;

[0034] When lowering goods from a height, the carrier plate 2 needs to be first raised to the loading height. Then, the driving component is used to drive the sliding block 402 to move within the mounting frame 401, further driving the support plate 403 to move closer to the lifting track 101. When the connection point between the support plate 403 and the sliding block 402 crosses the baffle 9, under the elastic action of the return force component, the support plate 403 will be driven to rotate, so that the support plate 403 moves out of the mounting frame 401. As the support plate 403 continues to move closer to the lifting track 101, the support roller 405 at one end of the support plate 403 will abut against the lifting track 101. If the support roller 405 fails to enter the support hole 406 at the initial stage of contact with the lifting track 101, the support plate 403 continues to move. At this time, the support roller 405 will rotate on the side wall of the lifting track 101 and move downward at the same time. When the support roller 405 moves to align with the support hole 406, the support roller 405 will enter the support hole 406. During the continuous movement of the support plate 403, the support roller 405 will abut against the bottom wall of the support hole 406. During the process of the support roller 405 abutting against the bottom wall of the support hole 406, the pressure sensor 404 is used to detect the pressure on the support roller 405. When the tightening pressure reaches the set requirement, the rotation of the support plate 403 is stopped. Thus, the supporting effect of the support plate 403 on the carrier plate 2 is utilized to provide a supporting force for the carrier plate 2 when loading goods at a height, thereby reducing the damage to the carrier plate 2 caused by the instantaneous impact force of the goods, and further improving the stability and safety of the carrier plate 2 during high-altitude goods loading. At the same time, when the pressure sensor 404 detects that the pressure of the support roller 405 reaches the set requirement, the controller locks the rotation motor 104 to prevent it from starting, thereby avoiding the start of the elevator due to the wrong cooperation or misoperation among the staff, and further enhancing the safety of the elevator during high-altitude goods loading.

[0035] Embodiment 2

[0036] Please refer to Figure 5 and Figure 6 This embodiment further elaborates on Embodiment 1. The two mounting frames 401 in the figure are provided with a guiding component for guiding the movement of the sliding block 402. The guiding component includes a dovetail groove 701 opened on the bottom wall of the mounting frame 401. A dovetail plate 702 is slidably connected to the dovetail groove 701, and one end of the dovetail plate 702 is connected to the sliding block 402.

[0037] It should be noted here that: through the setting of the guiding component, it provides guiding and limiting functions for the movement of the sliding block 402.

[0038] Please refer to Figure 5 and Figure 6, in the illustrated driving assembly, a threaded rod 801 is rotatably connected inside the mounting frame 401, a sliding block 402 is threadedly connected to the threaded rod 801, and a driving motor 802 is fixedly connected to one side of the mounting frame 401 away from the lifting track 101. The output end of the driving motor 802 is connected to the threaded rod 801;

[0039] It should be noted here that: through the setting of the driving assembly, under the rotation of the driving motor 802, the threaded rod 801 is driven to rotate. Thus, under the threaded meshing drive between the threaded rod 801 and the sliding block 402 and the guiding action of the guiding assembly, the sliding block 402 will be driven to move, and further drive the support plate 403 to move.

[0040] Embodiment 3

[0041] Please refer to Figure 5 and Figure 6 , this embodiment is a further description of other embodiments. On one side of the two mounting frames 401 away from the bearing plate 2 in the illustration, a baffle 9 is fixedly connected;

[0042] It should be noted here that: through the setting of the baffle 9, during the process of using the driving assembly to contract the support plate 403 into the mounting frame 401, when the side wall of the support plate 403 abuts against the baffle 9, under the blocking driving force and the rotation of the connecting assembly, the support plate 403 will be driven to rotate, so as to facilitate the contraction of the support plate 403 into the mounting frame 401, and further reduce the interference during the lifting process of the bearing plate 2.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A safety locking type elevator weighing device, comprising: A lifting track (101) and a carrying frame (102), wherein the lifting track (101) is provided with two rotating chains (103) for lifting and pushing the carrying frame (102) and a rotating motor (104) for rotating the two rotating chains (103); It is characterized by further comprising: A carrying plate (2) and two gravity sensors (3) are arranged on a carrying frame (102), wherein the two gravity sensors (3) are located at the bottom of the carrying frame (102), one side of the carrying plate (2) is located at a side of the two gravity sensors (3) away from the bottom of the carrying frame (102), and the carrying frame (102) is provided with a support assembly for supporting and locking the carrying plate (2) when loading high-altitude cargo; The support assembly comprises two symmetrically arranged mounting frames (401) fixedly connected to a side of a carrying frame (102) away from a carrying plate (2); the two mounting frames (401) are connected to sliding blocks (402) via a driving assembly; the sides of the two sliding blocks (402) away from the carrying plate (2) are connected to a supporting plate (403) via a connecting assembly; the ends of the two supporting plates (403) close to the lifting track (101) are connected to supporting rollers (405) via a pressure sensor (404); and a plurality of supporting holes (406) are provided on a side of the lifting track (101) close to the two supporting rollers (405).

2. A safety locking elevator weighing device according to claim 1, characterized in that: The connecting assembly comprises two fixed plates (501) fixedly connected to a side of the sliding block (402) close to the supporting plate (403) and symmetrically arranged with each other, a connecting plate (503) being connected between the two fixed plates (501) via a rotating shaft (502), one end of the connecting plate (503) being connected to the supporting plate (403), and the rotating shaft (502) being provided with a pull-back assembly for exerting pull-back force on the supporting plate (403).

3. A safety locking elevator weighing device according to claim 2, characterized in that: The back force assembly comprises a back force plate (601) arranged at one end of a rotating shaft (502), a torsion spring (602) is sleeved on the side wall of the rotating shaft (502), and two ends of the torsion spring (602) are respectively connected to the back force plate (601) and the fixed plate (501).

4. A safety locking elevator weighing device according to claim 1, characterized in that: The two installation frames (401) are provided with a guide assembly for guiding the movement of the sliding block (402), and the guide assembly includes a dovetail groove (701) opened on the bottom wall of the installation frame (401), and the dovetail groove (701) is slidably connected to a dovetail plate (702), and one end of the dovetail plate (702) is connected to the sliding block (402).

5. A safety locking elevator weighing device according to claim 1, characterized in that: The driving assembly comprises a threaded rod (801) rotatably connected to the installation frame (401), the sliding block (402) is threadedly connected to the threaded rod (801), and a driving motor (802) is fixedly connected to the side of the installation frame (401) away from the lifting track (101), and the output end of the driving motor (802) is connected to the threaded rod (801).

6. A safety locking elevator weighing device according to claim 1, characterized in that: A baffle (9) is fixedly connected to one side of the two installation frames (401) away from the carrying plate (2).