Lifting device
By introducing a sensing module and a display into the lifting device, the problem of inaccurate manual judgment of locking position was solved, thus achieving the safety and stability of the lifting platform.
Patent Information
- Application Number
- CN202520612217.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing lifting devices are prone to safety hazards during operation because manual judgment of whether the lifting is locked in place is easily affected by external factors.
The system employs a combination of a sensing module and a display. The sensing module detects the status of the locking module through sensors and displays the locking status visually on the display, ensuring that the lifting platform is locked in place and reducing external influences.
By intuitively displaying the locking status of the lifting platform, errors in human judgment are reduced, and safety hazards during operation are lowered.
Smart Images
Figure CN223892346U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lifting equipment technology, and more specifically, to a lifting device. Background Technology
[0002] In existing lifting devices, during operation, it is usually necessary to rely on manual judgment based on experience to determine whether the lifting device has locked in place after lifting. However, since manual judgment is easily affected by external factors, it is impossible to make accurate judgments, resulting in safety hazards during operation.
[0003] In conclusion, how to reduce safety hazards during the operation of lifting devices is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a lifting device that reduces safety hazards during the operation of the lifting device.
[0005] To achieve the above objectives, this application provides the following technical solution:
[0006] A lifting device includes: a column, a lifting platform, and a sensing module; wherein the lifting platform is slidably connected to the column, and the lifting platform is capable of moving up and down relative to the column in a first direction; a limit groove is formed on the column, and a locking module is provided inside the lifting platform, the locking module including a locked state and an unlocked state; in the locked state, the locking module is locked in place with the limit groove; in the unlocked state, the locking module is unlocked from the limit groove; the sensing module includes a sensor disposed inside the lifting platform and a display disposed on the column; the sensor is electrically connected to the display, the sensor is used to sense whether the locking module is in the locked state or the unlocked state, and the display can display the locked state or the unlocked state accordingly.
[0007] In some embodiments, the locking module includes: a driving member fixedly connected inside the lifting platform; a push rod pulsatorically connected to the driving member, the driving member driving the push rod to move along a second direction; and a limiting block fixedly connected to the end of the push rod away from the driving member, the limiting block engaging with the limiting groove; the second direction has an angle with the first direction.
[0008] In some embodiments, the limiting block and the limiting groove are configured to mimic shapes;
[0009] And / or, there are at least two limiting grooves, and the at least two limiting grooves are distributed sequentially along the first direction.
[0010] In some embodiments, the sensing module further includes an abutment disposed on the push rod, the abutment being movable along a second direction following the push rod; the sensing element includes a sensing probe, the sensing element is movably connected to a movable plate, a first end of the movable plate is rotatably connected to the sensing element, and a second end of the movable plate is used to abut against the sensing probe; in the locked state, the abutment pushes the movable plate to abut against the sensing probe; in the unlocked state, the abutment moves away from the movable plate, and the movable plate resets.
[0011] In some embodiments, the first end of the movable plate is connected to the sensing element via a torsion spring.
[0012] In some embodiments, the moving distance of the abutment relative to the movable plate is less than the moving distance of the limiting block relative to the limiting groove;
[0013] Alternatively, the distance the abutting member moves relative to the movable plate is equal to the distance the limiting block moves relative to the limiting groove.
[0014] In some embodiments, the sensing element is a piezoelectric sensor;
[0015] Alternatively, the sensing element may be a mechanical switch type sensor.
[0016] In some embodiments, the display includes a first indicator light and a second indicator light; in the locked state, the first indicator light is on and the second indicator light is off; in the unlocked state, the first indicator light is off and the second indicator light is on.
[0017] In some embodiments, the first indicator light and the second indicator light are different colors.
[0018] In some embodiments, a power supply module is also included, which is electrically connected to both the sensor and the display.
[0019] The lifting device provided in this application includes a column and a lifting platform that can move up and down relative to the column in a first direction. A limit groove is provided on the column, and a locking module is provided inside the lifting platform, including locked and unlocked states. In the locked state, the locking module engages with the limit groove to lock the lifting platform at a specified height. In the unlocked state, the locking module releases from the limit groove, allowing the lifting platform to be adjusted in height. The sensing module includes a sensor inside the lifting platform and a display on the column. The sensor and the display are electrically connected. The sensor can detect whether the locking module is locked or unlocked and displays the corresponding state on the display. This allows the display to visually show the engagement status of the locking module and the limit groove, thus clearly indicating whether the lifting platform is properly locked, reducing external influences and safety hazards during operation. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0021] Figure 1 A schematic diagram of the lifting device provided in the embodiments of this application;
[0022] Figure 2 A schematic diagram of the locking module provided in an embodiment of this application;
[0023] Figure 3 A schematic diagram of the sensing module provided in an embodiment of this application;
[0024] Figure 4 A schematic diagram of a display provided in an embodiment of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 100 - Column, 110 - Limiting groove;
[0027] 200-Lifting platform, 210-Drive component, 220-Push rod, 221-Limit block;
[0028] 300-Sensing module, 310-Abutting part, 320-Sensing element, 321-Sensing probe, 322-Modible plate, 330-Display, 331-First indicator light, 332-Second indicator light;
[0029] 400-Power Supply Module. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.
[0032] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0033] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.
[0034] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.
[0035] like Figure 1 As shown in the embodiment of this application, the lifting device includes: a column 100, a lifting platform 200, and a sensing module 300. The lifting platform 200 is slidably connected to the column 100, allowing the lifting platform 200 to rise and fall relative to the column 100 in a first direction. A limit groove 110 is provided on the column 100. A locking module is provided inside the lifting platform 200, including a locked state and an unlocked state. In the locked state, the locking module engages with the limit groove 110 to lock the lifting platform 200 at a specified height. In the unlocked state, the locking module releases the limit groove 110, allowing the lifting platform 200 to rise and fall relative to the column 100.
[0036] The sensing module 300 includes a sensing element 320 disposed inside the lifting platform 200 and a display 330 disposed on the column 100. The sensing element 320 can sense whether the locking module is locked or unlocked, and the display 330 displays the corresponding locking or unlocked state of the locking module. In this way, the cooperation state between the locking module and the limiting groove 110 can be intuitively displayed on the display, thereby intuitively showing whether the lifting platform 200 is locked in place, reducing external influences and reducing safety hazards of the lifting device during operation.
[0037] It should be noted that the lifting platform 200 is slidably engaged with the column 100 through a drive assembly. The column 100 is usually fixed on a horizontal plane to ensure the stability of the lifting process of the lifting platform 200. The lifting platform 200 can be driven by pneumatic, hydraulic, electric or other means. The lifting device provided in this application embodiment includes specific components of the drive assembly that can drive the lifting of the lifting platform 200, which will not be described in detail here.
[0038] In practice, the display 330 can also be arranged near the operating plane of the lifting device to make it easier for the operator to observe. This application embodiment does not limit this.
[0039] like Figures 1-2As shown, the locking module includes a drive component 210, a push rod 220, and a limiting block 221. The drive component 210 is fixedly connected inside the lifting platform 200, enabling the locking module to synchronously perform lifting operations with the lifting platform. The push rod 220 is drive-connected to the drive component 210, allowing the drive component 210 to drive the push rod 220 to move along a second direction. The end of the push rod 220 away from the drive component 210 is fixedly connected to the limiting block 221, which engages with the limiting groove 110. Thus, after the lifting platform 200 is raised to a specified height, the drive component 210 drives the push rod 220 to move along the second direction, causing the push rod 220 to move the limiting block 221 into the corresponding limiting groove 110, thereby achieving a locking engagement between the limiting block 221 and the limiting groove 110.
[0040] It should be noted that the first direction is consistent with the vertical direction, and the second direction has an angle with the first direction, which can be an acute angle, a right angle, or an obtuse angle. In this embodiment, in order to ensure the locking effect between the limiting block 221 and the limiting groove 110, the first direction and the second direction are perpendicular to each other.
[0041] In some embodiments, the drive unit 210 can be a drive device capable of linear reciprocating motion, such as a cylinder, hydraulic system, or electric push rod; however, this application does not limit this.
[0042] In practice, since there are generally two uprights 100, and the lifting platform 200 is slidably positioned between the two uprights 100, two locking modules are used to improve the stability of the lifting device's locking mechanism. These two locking modules are relatively staggered. Thus, when the lifting platform 200 is lifted to the designated position, the locking modules can lock the limiting grooves 110 on the two uprights 100 respectively, ensuring the stability of the lifting device's locking mechanism. It can be understood that with the locking modules relatively staggered, the limiting grooves 110 on the two uprights 100 are also relatively staggered, so that the two limiting blocks 221 can lock into their corresponding limiting grooves 110.
[0043] In some embodiments, the locking module of the limiting groove 110 of the column 100 on the corresponding side can also be set to two, three or more, in order to further improve the locking stability of the lifting platform 200. This application embodiment does not limit this.
[0044] In some embodiments, there are at least two limiting grooves 110 on a column 100, such as two, three, or four, so that the limiting block 221 can lock into the limiting groove 110 at multiple positions. This application embodiment does not limit this.
[0045] In some embodiments, the limiting block 221 and the push rod 220 can be fixedly connected by welding, pin connection, threaded connection, or other methods that enable the push rod 220 to drive the limiting block 221 to move synchronously. This application embodiment does not limit this.
[0046] To ensure the locking effect, in some embodiments, the limiting block 221 and the limiting groove 110 are designed to mimic shapes, that is, the limiting block 221 and the limiting groove 110 can both be wedge-shaped, trapezoidal, etc., so that the limiting block 221 can be engaged with the limiting groove 110 for limiting.
[0047] It should be noted that the push rod 220 and the limit block 221 in the locking module are both made of high-strength alloy steel, which has a certain strength and hardness. They can withstand the force between the lifting platform 200 and the column 100 during the locking engagement between the limit block 221 and the limit groove 110, and can ensure the stable operation of the lifting platform 200 at the specified height.
[0048] like Figure 1 and Figure 3 As shown, the sensing module 300 also includes an abutment 310 disposed on the push rod 220, which can move along the second direction with the push rod 220.
[0049] The sensing element 320 includes a sensing probe 321, and the sensing element 320 is movably connected to a movable plate 322. The first end of the movable plate 322 is rotatably connected to the sensing element 320, and the second end of the movable plate 322 is used to abut against the sensing probe 321.
[0050] In the locked state, the abutment 310 can move with the push rod 220 to contact the movable plate 322 and push the movable plate 322 to abut against the sensing probe 321 to trigger the sensing element 320, so that the sensing element 320 senses that the limiting block 221 and the limiting groove 110 are in the locked state.
[0051] In the unlocked state, the push rod 220 moves and drives the abutment 310 away from the movable plate 322, so that the movable plate 322 is reset and moves away from the sensing probe 321.
[0052] To ensure that the movable plate 322 can be reset after the abutting member 310 moves away from the movable plate 322, the first end of the movable plate 322 is connected to the sensing member 320 by a torsion spring, so that under the action of the torsion spring, the movable plate 322 can be reset to the initial state away from the sensing probe 321 and remain in the unlocked state without triggering the sensing member 320.
[0053] To prevent the sensor 320 from affecting the movement of the push rod 220 driving the limit block 221, the moving distance of the abutment 310 relative to the movable plate 322 is smaller than the moving distance of the limit block 221 relative to the limit groove 110, and the difference between the two is small. This ensures the locking fit between the limit block 221 and the limit groove 110, so that the abutment 310 and the sensor 320 will not come into contact when the push rod 220 drives the limit block 221 to move to the correct position, thereby improving the accuracy of the sensing module 300.
[0054] In some embodiments, the moving distance of the abutment 310 relative to the movable plate 322 is equal to the moving distance of the limiting block 221 relative to the limiting groove 110, further improving the accuracy of the sensing module 300.
[0055] In some embodiments, the sensing element 320 may be a piezoelectric sensor or a mechanical switch sensor, or other sensor capable of contact sensing. This application does not limit this.
[0056] like Figure 1 and Figure 4 As shown, the display 330 includes a first indicator light 331 and a second indicator light 332; in the locked state, the first indicator light 331 is on and the second indicator light 332 is off to remind the operator that the state is locked; in the unlocked state, the first indicator light 331 is off and the second indicator light 332 is on to remind the operator that the state is unlocked.
[0057] To improve visibility, the first indicator light 331 and the second indicator light 332 are different colors; for example, the first indicator light 331 is green and the second indicator light 332 is red, which can more intuitively display the locking status of the lifting platform 200, reduce the operator's judgment time, and improve work efficiency.
[0058] like Figure 4 As shown, in the unlocked state, the display 330 keeps the second indicator light 332 constantly lit. In the locked state, after the sensor 320 receives the sensor, it switches to the first indicator light 331 to light up, so as to show the locked state of the lifting platform 200. The connection between the first indicator light 331 and the second indicator light 332 in the display 330, as well as the sensing connection between them and the sensor 320, are conventional connection methods in the art and will not be described in detail here.
[0059] like Figure 1 As shown, the lifting device provided in this application embodiment also includes a power supply module 400. The power supply module 400 is electrically connected to the sensor 320 and the display 330 to enable the normal operation of the sensor 320 and the display 330.
[0060] During the operation of the lifting device provided in this embodiment, in the unlocked state, the limiting block 221 and the limiting groove 110 are unlocked, and the second indicator light 332 in the display 330 is constantly lit. The lifting platform 200 is driven to rise and fall along the column 100 by the drive assembly. After rising and falling to the designated position, the drive member 210 drives the push rod 220 to move. The push rod 220 drives the limiting block 221 to lock into the limiting groove 110. While the push rod 220 moves, the abutment member 310 moves with the push rod 220. When the limiting block 221 and the limiting groove 110 are locked, the abutment member 310 can push the movable plate 322 to contact the sensing probe 321 of the sensing member 320 to trigger the sensing member 320. After the sensing member 320 is triggered, the first indicator light 331 in the display 330 lights up and the second indicator light 332 goes out, so as to intuitively show that the lifting platform 200 is locked in place at this time, reducing external influences and reducing safety hazards during the operation of the lifting device.
[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A lifting device, characterized in that, include: Column (100), lifting platform (200) and sensing module (300); The lifting platform (200) is slidably connected to the column (100), and the lifting platform (200) can move up and down relative to the column (100) in a first direction; The column (100) has a limiting groove (110), and the lifting platform (200) is provided with a locking module. The locking module includes a locked state and an unlocked state. In the locked state, the locking module locks with the limiting groove (110). In the unlocked state, the locking module is unlocked from the limiting groove (110). The sensing module (300) includes a sensor (320) disposed inside the lifting platform (200) and a display (330) disposed on the column (100); the sensor (320) is electrically connected to the display (330), the sensor (320) is used to sense whether the locking module is in the locked state or the unlocked state, and the display (330) can display the locked state or the unlocked state accordingly.
2. The lifting device according to claim 1, characterized in that, The locking module includes: A drive unit (210) is fixedly connected inside the lifting platform (200); A push rod (220) is connected to the drive member (210) in a transmission manner, and the drive member (210) drives the push rod (220) to move in a second direction; A limiting block (221) is fixedly connected to one end of the push rod (220) away from the driving member (210), and the limiting block (221) is locked in place with the limiting groove (110); The second direction has an angle with the first direction.
3. The lifting device according to claim 2, characterized in that, The limiting block (221) and the limiting groove (110) are configured to mimic the shape of each other; And / or, there are at least two limiting grooves (110), and at least two of the limiting grooves (110) are distributed sequentially along the first direction.
4. The lifting device according to claim 2, characterized in that, The sensing module (300) also includes an abutment (310) disposed on the push rod (220), the abutment (310) being able to move along the second direction following the push rod (220); The sensing element (320) includes a sensing probe (321), and the sensing element (320) is movably connected to a movable plate (322). The first end of the movable plate (322) is rotatably connected to the sensing element (320), and the second end of the movable plate (322) is used to abut against the sensing probe (321). In the locked state, the abutment (310) pushes the movable plate (322) to abut against the sensing probe (321); In the unlocked state, the abutment (310) is away from the movable plate (322), and the movable plate (322) is reset.
5. The lifting device according to claim 4, characterized in that, The first end of the movable plate (322) is connected to the sensing element (320) by a torsion spring.
6. The lifting device according to claim 4, characterized in that, The moving distance of the abutment (310) relative to the movable plate (322) is less than the moving distance of the limiting block (221) relative to the limiting groove (110); Alternatively, the moving distance of the abutment (310) relative to the movable plate (322) is equal to the moving distance of the limiting block (221) relative to the limiting groove (110).
7. The lifting device according to claim 4, characterized in that, The sensing element (320) is a piezoelectric sensor; Alternatively, the sensing element (320) may be a mechanical switch type sensor.
8. The lifting device according to claim 1, characterized in that, The display (330) includes a first indicator light (331) and a second indicator light (332); In the locked state, the first indicator light (331) is on and the second indicator light (332) is off; In the unlocked state, the first indicator light (331) is off, and the second indicator light (332) is on.
9. The lifting device according to claim 8, characterized in that, The first indicator light (331) and the second indicator light (332) are different colors.
10. The lifting device according to any one of claims 1-9, characterized in that, It also includes a power supply module (400), which is electrically connected to the sensor (320) and the display (330).