Inclination protection device for operation of elevator

Abstract

The utility model provides an inclination protection device for elevator operation. The inclination protection device comprises an electromagnetic directional valve and an inclination monitoring component arranged at the bottom of a lifting platform in the middle. The inclination monitoring part is provided with a control module, the control module is connected with an inclination angle sensor and a relay, and the inclination angle sensor is used for monitoring the inclination angles of the lifting platform on the X axis and the Y axis; a normally closed contact of the relay is connected in series in a coil control loop of the electromagnetic directional valve; the electromagnetic directional valve is used for controlling the extension, retraction or stop of the hydraulic cylinder of the elevator; according to the utility model, the inclination angle sensor periodically collects the inclination angles of the lifting platform on the X axis and the Y axis, the control module is provided with an inclination angle threshold value, when the collected inclination angles of the lifting platform on the X axis and the Y axis exceed the inclination angle threshold value, the control module outputs a control signal to the relay, and the normally open contact of the relay is disconnected; a coil of the electromagnetic reversing valve is powered off, the elevator hydraulic cylinder is controlled to stop, the lifting platform is driven to move, and safety risks are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, specifically relating to a tilt protection device for elevator operation. Background Technology

[0002] Elevators are a common type of lifting and transportation tool, suitable for transporting goods between floors in high-rise factories, hotels, office buildings, shopping malls, and other similar locations.

[0003] The principle of the lifting platform is to control the extension and retraction of the hydraulic cylinder to drive the sprocket to move up and down. The sprocket is fitted with a chain. One end of the chain is fixedly connected to the frame, and the other end of the chain is fixedly connected to the lifting platform. The up and down movement of the sprocket will drive the lifting platform at one end of the chain to move up and down, thereby realizing the material transportation of floor components.

[0004] Improper placement of goods, poor ground flatness, and asynchronous hydraulic cylinders during loading can easily cause the lifting platform to tilt. Tilting can lead to the load slipping or tipping over, or even platform overturning, exacerbating safety risks.

[0005] Therefore, it is necessary to design a tilt protection device for lifting platforms that can monitor the tilt angle of the lifting platform in real time and stop the equipment operation in time when the tilt angle of the lifting platform reaches the preset value, so as to reduce safety risks and solve the current technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a tilt protection device for lifting platform that can monitor the tilt angle of the lifting platform in real time and stop the equipment operation in time when the tilt angle of the lifting platform reaches the preset value, thereby reducing safety risks.

[0007] The technical solution of this utility model is as follows: a tilt protection device for the operation of a lifting platform, including an electromagnetic reversing valve and a tilt monitoring component centrally located at the bottom of the lifting platform; the tilt monitoring component has a control module, and the control module is connected to a tilt sensor and a relay, the tilt sensor being used to monitor the tilt angle of the lifting platform on the X-axis and Y-axis; the normally closed contact of the relay is connected in series in the coil control circuit of the electromagnetic reversing valve, the electromagnetic reversing valve being used to control the extension, retraction, or stop of the lifting platform's hydraulic cylinder; the control module is connected to a first warning light, a second warning light, a third warning light, and a fourth warning light respectively located around the lifting platform.

[0008] Furthermore, an alarm module is connected to the relay, and the alarm module is connected in series with the normally open contact of the relay to the power supply.

[0009] Furthermore, a display module is connected to the control module, and the display module has a display screen for displaying the tilt angle of the lifting platform on the X-axis and Y-axis.

[0010] Furthermore, the tilt monitoring component has a housing, and a base plate is provided on one side of the housing. The housing and the base plate are detachably and fixedly connected.

[0011] Furthermore, two mounting plates are symmetrically arranged on the side of the outer casing near the base plate, and a mounting groove is provided on one side of the mounting plate. A locking bolt matching the mounting groove is provided on the base plate.

[0012] Furthermore, a mounting locking mechanism is provided on the substrate; the mounting locking mechanism has a baffle frame that is slidably disposed on the substrate, the outer shell is disposed inside the baffle frame, and a locking bolt is threadedly connected to one end of the substrate, and one end of the locking bolt is rotatably connected to one end of the baffle frame.

[0013] Furthermore, the locking bolt is provided with a locking nut for locking or releasing it between itself and the substrate.

[0014] Furthermore, the substrate is fixedly provided with sliding grooves on both sides, and the baffle is slidably disposed inside the sliding grooves.

[0015] Furthermore, the locking bolt is threadedly connected to the base plate, and the base plate has an allowance cavity inside that matches the end of the locking bolt. A baffle is fixedly installed on the end of the locking bolt inside the allowance cavity.

[0016] The beneficial effects of this utility model are:

[0017] (1) In this utility model, the tilt sensor periodically collects the tilt angle of the lifting platform on the X-axis and Y-axis. The control module is set with a tilt angle threshold. When the collected tilt angle of the lifting platform on the X-axis and Y-axis exceeds the tilt angle threshold, the control module outputs a control signal to the relay. The normally open contact of the relay is opened, the coil of the electromagnetic reversing valve is de-energized, the hydraulic cylinder of the lifting machine is stopped, and the lifting platform is driven to move, thereby reducing safety risks.

[0018] (2) When the collected lifting platform exceeds the tilt angle threshold on the X-axis and Y-axis, the control module will light up one or two of the first, second, third and fourth warning lights corresponding to the lower end according to the tilt state of the lifting platform, so as to remind the on-site personnel to avoid the danger in time and further reduce the safety risk. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the tilt protection device for elevator operation in this utility model.

[0020] Figure 2 This is a schematic diagram of the installation structure of the tilt protection device for the elevator operation in this utility model.

[0021] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 This is a schematic diagram of the tilt monitoring component in this utility model.

[0023] Figure 5 This is a schematic diagram of the connection structure between the locking bolt and the base plate in this utility model. Detailed Implementation

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0025] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figure 1As shown, the tilt protection device for the elevator includes an electromagnetic reversing valve 3 and a tilt monitoring component 1 centrally located at the bottom of the lifting platform 10. The tilt monitoring component 1 has a control module 14, on which a tilt sensor 11 and a relay 13 are connected. The tilt sensor 11 is used to monitor the tilt angle of the lifting platform along the X and Y axes. The normally closed contact of the relay 13 is connected in series in the coil control circuit of the electromagnetic reversing valve 3, which is used to control the extension, retraction, or stop of the lifting platform's hydraulic cylinder. A first warning light 4, a second warning light 5, a third warning light 6, and a fourth warning light 7 are respectively located around the lifting platform 10. In this embodiment, the tilt sensor 11 periodically collects the tilt angle of the lifting platform along the X and Y axes. The control module 14 is set with a tilt angle threshold. When the collected tilt angle of the lifting platform along the X and Y axes exceeds the threshold, the control module 14... 4. A control signal is output to relay 13, the normally open contact of relay 13 opens, de-energizes the coil of electromagnetic reversing valve 3, controls the hydraulic cylinder of the lifting platform to stop, and drives the lifting platform 10 to move, reducing safety risks. When the lifting platform exceeds the tilt angle threshold in the X and Y axes, the control module 14 illuminates one or two of the first warning light 4, the second warning light 5, the third warning light 6, and the fourth warning light 7 at the lower end according to the tilt state of the lifting platform 10, reminding on-site personnel to avoid the area in time, further reducing safety risks. Specifically, the second warning light 5 and the fourth warning light 7 correspond to the two ends of the lifting platform 10 in the X direction, respectively; the first warning light 4 and the third warning light 6 correspond to the two ends of the lifting platform 10 in the Y direction, respectively. When the lifting platform 10 tilts, the tilt sensor 11 identifies the tilt direction and controls the warning light in the corresponding direction to illuminate, reminding on-site personnel to avoid the area in time.

[0027] In the above embodiments, the first warning light 4, the second warning light 5, the third warning light 6 and the fourth warning light 7 are light strips fixedly installed on the side of the lifting platform 10.

[0028] In some embodiments, an alarm module 2 is connected to the relay 13, and the normally open contact of the alarm module 2 and the relay 13 are connected in series to the power supply. When the collected lifting platform exceeds the tilt angle threshold on the X-axis and Y-axis, the alarm module 2 outputs a control signal to the relay 13, and its normally open contact closes to turn on the alarm module 2. The alarm module 2 then emits an alarm signal to remind on-site personnel to handle the situation and avoid the danger. The alarm module 2 is an audible and visual alarm.

[0029] In some embodiments, a display module 12 is connected to the control module 14. The display module 12 has a display screen, which is used to display the tilt angle of the lifting platform on the X-axis and Y-axis, so that on-site personnel can understand the tilt state of the lifting platform.

[0030] In some embodiments, such as Figures 2 to 4 As shown, the tilt monitoring component 1 has a housing 15, and a base plate 8 is provided on one side of the housing 15. The housing 15 and the base plate 8 are detachably and fixedly connected. The base plate 8 is welded and fixed to the bottom of the lifting platform. The detachable and fixed connection between the housing 15 and the base plate 8 facilitates the assembly and disassembly of the tilt monitoring component 1.

[0031] In some embodiments, two mounting plates 17 are symmetrically arranged on the side of the housing 15 near the substrate 8. A mounting groove 18 is provided on one side of the mounting plate 17, and a locking bolt 19 matching the mounting groove 18 is provided on the substrate 8. When the tilt monitoring component 1 is installed on the bottom of the lifting platform 10, the mounting plate 17 is in close contact with the substrate 8, the mounting groove 18 corresponds to the locking bolt 19, the mounting plate 17 is slid to allow the locking bolt 19 to enter the interior of the mounting groove 18, and then the locking bolt 19 is tightened to fix the tilt monitoring component 1 on the bottom of the substrate 8. Loosening the locking bolt 19 and sliding the tilt monitoring component 1 allows it to be removed from the bottom of the substrate 8.

[0032] In some embodiments, a mounting locking mechanism 9 is provided on the substrate 8; the mounting locking mechanism 9 has a retaining frame 92 slidably disposed on the substrate 8, a housing 15 disposed inside the retaining frame 92, and a locking bolt 93 threadedly connected to one end of the substrate 8, with one end of the locking bolt 93 rotatably connected to one end of the retaining frame 92; by rotating the locking bolt 93 in both directions, the locking bolt 93 can drive the retaining frame 92 to slide back and forth on the substrate 8; when the locking bolt 19 enters the interior of the mounting groove 18, the locking bolt 93 is screwed on, causing the retaining frame 92 to abut against one end of the housing 15, preventing the housing 15 from moving, and keeping the locking bolt 19 in the state inside the mounting groove 18, so that it will not loosen or come off; when it is necessary to disassemble the tilt monitoring component 1, the locking bolt 93 is screwed on, causing the locking bolt 93 to move the retaining frame 92 away from one end of the housing 15, at which time the housing 15 can be slid and removed from the substrate 8.

[0033] In some embodiments, the locking bolt 93 is provided with a locking nut 94 for locking or releasing it between itself and the substrate 8; by tightening the locking nut 94 so that the locking nut 94 abuts against one end of the substrate 8, the locking bolt 93 can be locked to the substrate 8.

[0034] In some embodiments, slide grooves 91 are fixedly provided on both sides of the substrate 8, and the baffle 92 is slidably disposed inside the slide grooves 91.

[0035] In some embodiments, such as Figure 5As shown, the locking bolt 19 is threadedly connected to the base plate 8. The base plate 8 has an allowance cavity 81 that matches the end of the locking bolt 19. A baffle 191 is fixedly installed on the end of the locking bolt 19 in the allowance cavity 81. The blocking and limiting function of the baffle 191 can prevent the locking bolt 19 from being removed from the base plate 8, so as to prevent the locking bolt 19 from being lost and affecting the fixation of the tilt monitoring component 1.

[0036] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0037] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tilt protection device for elevator operation, characterized in that: The system includes an electromagnetic directional valve and a tilt monitoring component centrally located at the bottom of the lifting platform. The tilt monitoring component has a control module connected to a tilt sensor and a relay. The tilt sensor monitors the tilt angle of the lifting platform along the X and Y axes. The normally closed contact of the relay is connected in series in the coil control circuit of the electromagnetic directional valve, which controls the extension, retraction, or stopping of the lifting platform's hydraulic cylinder. The control module is connected to a first warning light, a second warning light, a third warning light, and a fourth warning light, respectively positioned around the lifting platform. The tilt monitoring component has a housing with a base plate on one side, and the housing and base plate are detachably and fixedly connected. Two mounting plates are symmetrically arranged on the housing near the base plate, each mounting plate having a mounting groove on one side. Locking bolts matching the mounting grooves are provided on the base plate.

2. The tilt protection device for elevator operation according to claim 1, characterized in that: An alarm module is connected to the relay, and the alarm module is connected in series with the normally open contact of the relay to the power supply.

3. The tilt protection device for elevator operation according to claim 1, characterized in that: The control module is connected to a display module, which has a display screen for displaying the tilt angle of the lifting platform on the X and Y axes.

4. The tilt protection device for elevator operation according to claim 1, characterized in that: The substrate is provided with a mounting and locking mechanism; the mounting and locking mechanism has a baffle frame that is slidably disposed on the substrate, the outer shell is disposed inside the baffle frame, and a locking bolt is threadedly connected to one end of the substrate, and one end of the locking bolt is rotatably connected to one end of the baffle frame.

5. The tilt protection device for elevator operation according to claim 4, characterized in that: The locking bolt is provided with a locking nut for locking or releasing it between itself and the substrate.

6. The tilt protection device for elevator operation according to claim 4, characterized in that: The substrate has sliding grooves fixedly provided on both sides, and the baffle is slidably disposed inside the sliding grooves.

7. The tilt protection device for elevator operation according to claim 1, characterized in that: The locking bolt is threadedly connected to the base plate. The base plate has an clearance cavity inside that matches the end of the locking bolt. A baffle is fixedly installed on the end of the locking bolt inside the clearance cavity.

Images