Lifting-in-place detection device and scissor lift

Abstract

This application relates to the field of lifting equipment technology, and proposes a lifting position detection device and a scissor lift platform. The lifting position detection device includes a fixed base, a guide base, a sliding plate, a sensor, and a sensing engagement component. The guide base is connected to the fixed base, and the sliding plate is slidably mounted on the guide base along a first direction. The sliding plate includes a hook portion for hooking onto the rotating shaft of the movable end of the scissor arm. One of the sensor and the sensing engagement component is disposed on the fixed base, and the other is disposed on the sliding plate. At least one of the sensors and the sensing engagement component is arranged in pairs at intervals along the first direction. When the sensors and the sensing engagement component engage, the sensor sends a position signal to the controller. The sensors and the sensing engagement component in the above-mentioned lifting position detection device can engage at the upper and lower limit positions of the lifting platform and send a position signal to the controller, solving the problem of inconvenient lifting position detection of the lifting platform.

Description

Technical Field

[0001] This application relates to the field of lifting equipment technology, and in particular to a lifting position detection device and a scissor lift platform. Background Technology

[0002] To prevent damage to scissor lifts during lifting, it is typically necessary to detect the lifting position of the platform to avoid overtravel. However, existing scissor lift positioning detection devices are not well-suited for accurately detecting the lifting position of the platform. Utility Model Content

[0003] In view of this, embodiments of this application provide a lifting position detection device and a scissor lift platform to solve the problem of inconvenient lifting position detection of the lifting platform.

[0004] The first aspect of this application discloses a lifting position detection device, including a fixed base, a guide base, a sliding plate, a sensor, and a sensing engagement component. The guide base is fixedly connected to the fixed base, and the sliding plate is slidably mounted on the guide base along a first direction. The sliding plate includes a hook portion for hooking onto the rotating shaft of the movable end of the scissor arm. One of the sensor and the sensing engagement component is disposed on the fixed base, and the other of the sensor and the sensing engagement component is disposed on the sliding plate. At least one of the sensor and the sensing engagement component is arranged in pairs at intervals along the first direction, and when the sensor and the sensing engagement component are engaged, the sensor is used to send a position signal to the controller.

[0005] The beneficial effects of the lifting position detection device provided in this application are as follows: After the lifting position detection device of this application is installed on the base or lifting platform of the scissor lift, the fixed seat and the guide seat are fixed relative to the base or lifting platform. The hook part of the sliding plate is hooked on the rotating shaft of the movable end of the scissor arm. That is, when the movable end of the scissor arm moves along the first direction (horizontal or near-horizontal), the rotating shaft of the movable end can drive the sliding plate to slide along the first direction on the guide seat. Since one of the sensing element and the sensing mating element is located on the fixed seat (fixed relative to the guide seat), and the other of the sensing element and the sensing mating element is located on the sliding plate, and at least one of the sensing elements and the sensing mating element is arranged in two at intervals along the first direction, the sensing element and the sensing mating element can sense and engage at the upper and lower limit positions of the lifting platform during the sliding of the sliding plate along the first direction. The sensing element is used to send a position signal to the controller to ensure that the lifting platform lifts and lowers within the lifting stroke, thus solving the problem of inconvenient lifting position detection of the lifting platform.

[0006] In some embodiments, two of each of the sensing element and the sensing mating element are arranged at intervals along the first direction.

[0007] In some embodiments, the hook portion is a ring structure or a semi-ring structure.

[0008] In some embodiments, the lifting position detection device further includes a limiting plate, which is used to fix the end face of the rotating shaft.

[0009] In some embodiments, the limiting plate is provided with through holes for threaded fasteners to pass through.

[0010] In some embodiments, the limiting plate is oval in shape.

[0011] In some embodiments, the sliding plate includes a first vertical plate and a first horizontal plate connected to the first vertical plate, the hook portion is disposed on the first vertical plate, and one of the sensing element and the sensing engagement element is disposed on the first horizontal plate.

[0012] In some embodiments, the guide seat includes a second vertical plate and two guide blocks, the two guide blocks being disposed on the same side of the second vertical plate and spaced apart along a second direction, wherein the second direction is perpendicular to the first direction; the two guide blocks and the second vertical plate form a guide groove for the first vertical plate to slide.

[0013] In some embodiments, the lifting position detection device further includes a connecting frame for fixing to the base or lifting platform, wherein the fixing seat and the guide seat are both disposed on the connecting frame.

[0014] The second aspect of this application discloses a scissor lift platform, which includes a base, a scissor arm, a lifting platform, and a lifting position detection device as described in the first aspect. The scissor arm is disposed between the base and the lifting platform, the lifting position detection device is installed on the base or the lifting platform, and the hook portion of the sliding plate is hooked onto the pivot of the movable end of the scissor arm.

[0015] The scissor lift platform adopts any one or more embodiments of the above-mentioned lifting position detection device, and therefore has the beneficial effects of the above-mentioned embodiments, which will not be described in detail here.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a scissor lift platform provided in some embodiments of this application; Figure 2 yes Figure 1 The diagram shows the structure of the scissor lift at point A. Figure 3 This is a schematic diagram of the lifting position detection device provided in some embodiments of this application (two sensing elements and two sensing mating parts). Figure 4 This is a schematic diagram of the lifting position detection device provided in some embodiments of this application (one sensing element and two sensing mating elements). Figure 5 This is a schematic diagram of the lifting position detection device provided in some embodiments of this application (two sensing elements and one sensing mating element). Figure 6 This is a schematic diagram of the lifting position detection device provided in some embodiments of this application (the hook part is a ring structure); Figure 7 This is a schematic diagram of the lifting position detection device provided in some embodiments of this application (without a limit plate).

[0019] The markings in the diagram mean: 100. Scissor lift platform; 10. Lifting position detection device; 11. Fixing base; 111. Z-shaped plate; 112. Second horizontal plate; 12. Guide seat; 121. Second vertical plate; 122. Guide block; 123. Guide groove; 13. Sliding plate; 131. First vertical plate; 1311. Hook and hanger part; 132. First horizontal plate; 14. Sensors; 15. Induction mating parts; 16. Limiting plate; 161. Through hole; 17. Connecting frame; 171. Third horizontal plate; 172. Reinforcing rib plate; 173. Third vertical plate; 20. Base; 21. Guide plate; 30. Scissor arm; 31. Axle; 32. Roller; 40. Lifting platform; 50. Drive unit. Detailed Implementation

[0020] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0026] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0027] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0028] An embodiment of the first aspect of this application provides a lifting position detection device for a scissor lift platform. Please refer to... Figure 1 The scissor lift platform 100 includes a base 20, a scissor arm 30, a lifting platform 40, and a drive unit 50. The scissor arm 30 is connected between the base 20 and the lifting platform 40. The drive unit 50 is used to drive the scissor arm 30 to open or fold, thereby raising or lowering the lifting platform 40. The drive unit 50 can be a hydraulic drive or an electric drive. The lifting position detection device 10 can be located on the base 20 or on the lifting platform 40.

[0029] Please refer to Figure 2 and Figure 3 The lifting position detection device 10 includes a fixed base 11, a guide base 12, a sliding plate 13, a sensor 14, and a sensing engagement component 15. The guide base 12 is fixedly connected to the fixed base 11. The sliding plate 13 is slidably mounted on the guide base 12 along a first direction X. The sliding plate 13 includes a hook portion 1311 for hooking onto the rotating shaft 31 at the movable end of the scissor arm 30. One of the sensor 14 and the sensing engagement component 15 is located on the fixed base 11, and the other is located on the sliding plate 13. At least one of the sensor 14 and the sensing engagement component 15 is arranged in pairs at intervals along the first direction X. When the sensor 14 and the sensing engagement component 15 are engaged, the sensor 14 sends a position signal to the controller.

[0030] The guide seat 12 is fixedly connected to the fixed seat 11, that is, the guide seat 12 and the fixed seat 11 are relatively fixed. It can be understood that the guide seat 12 can be directly connected to the fixed seat 11; or, the guide seat 12 can be indirectly connected to the fixed seat 11, that is, the guide seat 12 is connected to the fixed seat 11 through other components, for example, the other components can be the connecting bracket 17.

[0031] When the lifting position detection device 10 is installed on the base 20 or the lifting platform 40, the first direction X is horizontal or nearly horizontal.

[0032] Since the guide seat 12 is fixed relative to the fixed seat 11, and the sliding plate 13 is slidably mounted on the guide seat 12 along the first direction X, it can be understood that the sliding plate 13 can move relative to the fixed seat 11 along the first direction X.

[0033] The hook part 1311 is used to hook onto the rotating shaft 31 of the movable end of the scissor arm 30. That is, when the movable end of the scissor arm 30 slides along the first direction X on the base 20 or the lifting platform 40, the rotating shaft 31 can drive the sliding plate 13 to slide along the first direction X.

[0034] The movable end of the scissor lift 30 refers to the end of the scissor lift 30 that can move on the base 20 or the lifting platform 40 in the first direction X. Taking the movement of the movable end of the scissor lift 30 on the base 20 as an example, please refer to... Figure 2 The base 20 is provided with a guide plate 21, which has a U-shaped groove with an opening facing the sliding plate 13. The movable end of the scissor arm 30 is provided with a roller 32, which is located in the U-shaped groove and can move in the first direction X within the U-shaped groove. The roller 32 is mounted on the rotating shaft 31.

[0035] Understandably, the sensing element 14 can be disposed on the fixed base 11, and the sensing mating element 15 can be disposed on the sliding plate 13; or, the sensing mating element 15 can be disposed on the fixed base 11, and the sensing element 14 can be disposed on the sliding plate 13.

[0036] At least one of the sensing element 14 and the sensing mating element 15 is arranged in two at intervals along the first direction X. This can be understood as follows: one sensing element 14 is provided, and two sensing mating elements 15 are arranged at intervals along the first direction X; or, two sensing elements 14 are arranged at intervals along the first direction X, and one sensing mating element 15 is provided; or, both the sensing element 14 and the sensing mating element 15 are arranged in two at intervals along the first direction X.

[0037] When the sensing element 14 and the sensing mating element 15 are in sensing engagement, the sensing element 14 is used to send a position signal to the controller. For example, the sensing element 14 can be a Hall sensor and the sensing mating element 15 can be a magnetic element; or, the sensing element 14 can be a light receiver and the sensing mating element 15 can be a light emitter; or, the sensing element 14 can be a proximity switch and the sensing mating element 15 can be a metal element.

[0038] The beneficial effects of the lifting position detection device 10 provided in this application embodiment are as follows: After the lifting position detection device 10 of this application is installed on the base 20 or lifting platform 40 of the scissor lift platform 100, the fixed seat 11 and the guide seat 12 are fixed relative to the base 20 or lifting platform 40. The hook part 1311 of the sliding plate 13 is hooked on the rotating shaft 31 of the movable end of the scissor arm 30. That is, when the movable end of the scissor arm 30 moves along the first direction X, the rotating shaft 31 of the movable end can drive the sliding plate 13 to slide along the first direction X on the guide seat 12. Since one of the sensing element 14 and the sensing mating element 15 is located on the fixed base 11 (fixed relative to the guide base 12), and the other of the sensing element 14 and the sensing mating element 15 is located on the sliding plate 13, and at least one of the sensing elements 14 and the sensing mating element 15 is arranged in two at intervals along the first direction X, the sensing element 14 and the sensing mating element 15 can sense and engage at the upper and lower limit positions of the lifting platform 40 during the sliding of the sliding plate 13 along the first direction X. The sensing element 14 is used to send a position signal to the controller to ensure that the lifting platform 40 rises and falls within the lifting stroke, thus solving the problem of inconvenient detection of the lifting position of the lifting platform 40.

[0039] Please refer to Figure 3 In some embodiments, there are two sensing elements 14 and two sensing mating elements 15 arranged at intervals along the first direction X.

[0040] When the lifting platform 40 is raised to its position, the right-side sensor 14 and the right-side sensor engagement component 15 engage. During the descent of the lifting platform 40, the sliding plate 13 slides to the right, and the right-side sensor 14 and the right-side sensor engagement component 15 cease to engage. When the lifting platform 40 is lowered to its position, the left-side sensor 14 and the left-side sensor engagement component 15 engage.

[0041] Please refer to Figure 4 In some embodiments, there is one sensing element 14 and two sensing mating elements 15 are arranged at intervals along the first direction X.

[0042] Specifically, when the lifting platform 40 is raised to its position, the sensor 14 and the right-side sensor engagement component 15 engage; during the descent of the lifting platform 40, the sliding plate 13 slides to the right, and the sensor 14 and the right-side sensor engagement component 15 no longer engage; when the lifting platform 40 is lowered to its position, the sensor 14 and the left-side sensor engagement component 15 engage.

[0043] Please refer to Figure 5 In some embodiments, two sensing elements 14 are arranged at intervals along the first direction X, and one sensing mating element 15 is provided.

[0044] When the lifting platform 40 is raised to its position, the left-side sensor 14 and sensor engagement component 15 engage. During the descent of the lifting platform 40, the sliding plate 13 slides to the right, and the left-side sensor 14 and sensor engagement component 15 cease to engage. When the lifting platform 40 is lowered to its position, the right-side sensor 14 and sensor engagement component 15 engage.

[0045] Please refer to Figures 3 to 5 In some embodiments, the hook portion 1311 has a semi-annular structure. The opening of the hook portion 1311 can face downwards or upwards. This design facilitates the hook portion 1311 hooking onto the rotating shaft 31.

[0046] In some other embodiments, please refer to Figure 6 The hook part 1311 has a ring structure. This design helps to ensure the stability of the sliding plate 13 hooked on the rotating shaft 31. Of course, the hook part 1311 can also be a C-shaped structure.

[0047] Please refer to Figure 2 and Figure 3 In some embodiments, the lifting position detection device 10 further includes a limiting plate 16, which is fixed to the end face of the rotating shaft 31 and rotates with the rotating shaft 31. This design allows the limiting plate 16 to limit the hook portion 1311 axially on the rotating shaft 31, preventing the hook portion 1311 from detaching from the rotating shaft 31 axially. The hook portion 1311 is located between the limiting plate 16 and the scissor arm 30, and there is a gap between the hook portion 1311 and the limiting plate 16 and / or between the hook portion 1311 and the scissor arm 30.

[0048] In some other embodiments, please refer to Figure 7 Instead of setting the limiting plate 16, the rotating shaft 31 can be designed to be longer to prevent the hook part 1311 from coming off the rotating shaft 31 in the axial direction.

[0049] Please refer to Figure 3In some embodiments, the limiting plate 16 is provided with a through hole 161 for a threaded fastener to pass through, and correspondingly, a threaded hole is provided on the end face of the rotating shaft 31; the threaded fastener passes through the through hole 161 and is screwed into the threaded hole to fix the limiting plate 16 to the end face of the rotating shaft 31. For example, the threaded fastener is a screw, bolt, etc.

[0050] One or more through holes 161 can be provided, and correspondingly, one or more threaded holes can be provided.

[0051] Based on the above technical solution, the limiting plate 16 is fixed to the end face of the rotating shaft 31 by threaded fasteners, which is conducive to the disassembly and installation of the limiting plate 16.

[0052] In other embodiments, the limiting plate 16 can also be fixed to the end face of the rotating shaft 31 by means of welding, snap-fitting, threaded connection, etc.

[0053] Please refer to Figure 3 In some embodiments, the limiting plate 16 is oval in shape. In this way, while limiting the hook portion 1311, the limiting plate 16 can reduce the contact area with the hook portion 1311, thereby reducing the friction between the limiting plate 16 and the hook portion 1311.

[0054] In some other embodiments, the shape of the limiting plate 16 can be circular, elliptical, polygonal (e.g., rectangular), or other irregular shapes.

[0055] Please refer to Figure 3 In some embodiments, the sliding plate 13 includes a first vertical plate 131 and a first horizontal plate 132 connected to the first vertical plate 131, a hook portion 1311 is provided on the first vertical plate 131, and one of the sensing element 14 and the sensing engagement element 15 is provided on the first horizontal plate 132.

[0056] It is understood that the first horizontal plate 132 can be integrally formed with the first vertical plate 131; or, the first horizontal plate 132 can be fixed to the first vertical plate 131 by welding, snap-fitting, fastener connection or other means.

[0057] For example, the first horizontal plate 132 is located on the side of the first vertical plate 131 that faces away from the guide plate 21.

[0058] One of the sensing element 14 and the sensing mating element 15 is disposed on the first horizontal plate 132. It can be understood that the sensing element 14 is disposed on the first horizontal plate 132, or the sensing mating element 15 is disposed on the first horizontal plate 132.

[0059] Please refer to Figure 3In some embodiments, the guide seat 12 includes a second vertical plate 121 and two guide blocks 122. The two guide blocks 122 are disposed on the same side of the second vertical plate 121 and are spaced apart along a second direction Y, wherein the second direction Y is perpendicular to the first direction X. The two guide blocks 122 and the second vertical plate 121 form a guide groove 123 for the first vertical plate 131 to slide.

[0060] For example, two guide blocks 122 are provided on the side of the second vertical plate 121 facing away from the guide plate 21.

[0061] When the lifting position detection device 10 is installed on the base 20 or the lifting platform 40, the second direction Y is vertical or nearly vertical. It can be understood that the second direction Y is perpendicular to the first direction X, but this is not limited to strict perpendicularity; that is, the second direction Y can also be approximately perpendicular to the first direction X.

[0062] For example, the guide groove 123 is a T-groove. Of course, the guide groove 123 can also be a dovetail groove.

[0063] Please refer to Figure 3 In some embodiments, the lifting position detection device 10 further includes a connecting frame 17 for fixing on the base 20 or the lifting platform 40, with the fixed seat 11 and the guide seat 12 both disposed on the connecting frame 17.

[0064] For example, the connecting frame 17 includes a third horizontal plate 171, a reinforcing rib 172 and a third vertical plate 173. The third horizontal plate 171 and the third vertical plate 173 form an L-shaped plate. The reinforcing rib 172 is connected between the third horizontal plate 171 and the third vertical plate 173 to ensure the structural strength of the connecting frame 17.

[0065] For example, the third vertical plate 173 is fixed to the base 20 or the lifting platform 40. For example, the third vertical plate 173 is fixed to the base 20 or the lifting platform 40 by threaded fasteners (e.g., screws, bolts); the fixed seat 11 and the guide seat 12 are connected to the third horizontal plate 171.

[0066] In some embodiments, the mounting base 11 includes a U-shaped plate 111 and a second horizontal plate 112, the second horizontal plate 112 being fixedly connected to the U-shaped plate 111, and a sensing element 14 or a sensing mating element 15 being disposed on the second horizontal plate 112. The second horizontal plate 112 can be fixed to the U-shaped plate 111 by threaded fasteners (e.g., screws, bolts), and the U-shaped plate 111 can be fixed to a third horizontal plate 171 by threaded fasteners (e.g., screws, bolts).

[0067] Please refer to Figure 1 and Figure 2The second aspect of this application provides a scissor lift platform 100, which includes a base 20, a scissor arm 30, a lifting platform 40, and a lifting position detection device 10 as described in the first aspect. The scissor arm 30 is disposed between the base 20 and the lifting platform 40, and the lifting position detection device 10 is installed on the base 20 or the lifting platform 40. The hook portion 1311 of the sliding plate 13 is hooked on the rotating shaft 31 of the movable end of the scissor arm 30.

[0068] Understandably, one or more lifting position detection devices 10 may be provided.

[0069] The scissor lift platform 100 adopts any one or more embodiments of the above-mentioned lifting position detection device 10, and thus has the beneficial effects of the above-mentioned embodiments, which will not be described in detail here.

[0070] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A lift-in-place detection device, characterized by: The device includes a fixed base, a guide base, a sliding plate, a sensor, and a sensing engagement component. The guide base is fixedly connected to the fixed base. The sliding plate is slidably mounted on the guide base along a first direction. The sliding plate includes a hook portion for hooking onto the rotating shaft of the movable end of the scissor arm. One of the sensor and the sensing engagement component is disposed on the fixed base, and the other of the sensor and the sensing engagement component is disposed on the sliding plate. At least one of the sensor and the sensing engagement component is arranged in pairs at intervals along the first direction. When the sensor and the sensing engagement component are in contact, the sensor is used to send a position signal to the controller.

2. The lift-in-place detection device of claim 1, wherein: Both the sensing element and the sensing mating element are arranged in pairs at intervals along the first direction.

3. The lift-in-place detection device of claim 1, wherein: The hook part has a ring structure or a semi-ring structure.

4. The lift-in-place detection device of claim 1, wherein: The lifting position detection device also includes a limiting plate, which is used to fix the end face of the rotating shaft.

5. The lift-in-place detection device of claim 4, wherein: The limiting plate is provided with through holes for threaded fasteners to pass through.

6. The lift-in-place detection device of claim 4, wherein: The limiting plate is oval in shape.

7. The lift-in-place detection device of any one of claims 1-6, wherein: The sliding plate includes a first vertical plate and a first horizontal plate connected to the first vertical plate. The hook is disposed on the first vertical plate, and one of the sensing element and the sensing engagement element is disposed on the first horizontal plate.

8. The lifting position detection device as described in claim 7, characterized in that: The guide seat includes a second vertical plate and two guide blocks. The two guide blocks are located on the same side of the second vertical plate and are spaced apart along a second direction, wherein the second direction is perpendicular to the first direction. The two guide blocks and the second vertical plate form a guide groove for the first vertical plate to slide.

9. The lift-in-place detection device of any one of claims 1-6, wherein: The lifting position detection device also includes a connecting frame for fixing to the base or lifting platform, and the fixing seat and the guide seat are both provided on the connecting frame.

10. A scissor lift table characterized by: The device includes a base, a scissor arm, a lifting platform, and a lifting position detection device as described in any one of claims 1-9. The scissor arm is disposed between the base and the lifting platform, the lifting position detection device is installed on the base or the lifting platform, and the hook portion of the sliding plate is hooked onto the rotating shaft at the movable end of the scissor arm.

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