Fall protection lift

Abstract

This utility model discloses a fall-prevention lifting platform, comprising: a base, a platform, and a scissor fork; a slide rail is provided on the base, the lower right end of the scissor fork is connected to the base, and the lower left end can slide along the slide rail; several support rods capable of left and right rotation are rotatably connected to the bottom of the platform; a stop block capable of vertical extension and retraction is provided on the slide rail; the height of the stop block can be lower than or equal to the height of the slide rail; when the lower left end of the scissor fork abuts against the right side of the stop block, the bottom ends of all support rods abut against the upper surface of the base. The stop block and support rods provide double protection for the fall-prevention lifting platform, preventing the platform from falling.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a fall-prevention lifting platform. Background Technology

[0002] A scissor lift, also known as a scissor-lift platform, is a type of lifting and loading equipment widely used in industrial and commercial fields. Its core structure is the scissor lift (scissor boom), which raises and lowers the platform through the crisscrossing extension and retraction of multiple scissor lifts. During operation, a hydraulic system typically provides power to extend and retract the scissor lifts. As the scissor lifts, the platform rises; as it retracts, the platform lowers.

[0003] This type of lifting platform has many advantages, such as its compact structure, occupying little space when folded, facilitating storage and transportation; strong load-bearing capacity, capable of smoothly lifting heavy goods or personnel; and stable lifting process, as the scissor mechanism keeps the platform level during lifting, ensuring operational safety. However, it is understandable that if the scissor fork malfunctions, the platform could easily collapse, causing goods to roll off and personnel to fall and injure themselves.

[0004] Therefore, designing a lifting platform that can prevent falls has become an urgent problem to be solved. Utility Model Content

[0005] In view of this, the main objective of this utility model is to provide a fall-prevention lifting platform.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A fall-prevention lifting platform includes: a base, a platform disposed on the base, and a scissor fork disposed between the platform and the base; the base is provided with a slide rail extending in the left-right direction, the lower right end of the scissor fork is connected to the base, and the lower left end can slide along the slide rail; a plurality of support rods are rotatably connected to the bottom of the platform, and the support rods can rotate to the left and to the right relative to the platform; a first stop block that can extend and retract in the vertical direction is provided on the slide rail, the first stop block can be in a first state and a second state, and can switch between the first state and the second state; when the first stop block is in the first state, the height of the first stop block is lower than the height of the slide rail; when the first stop block is in the second state, the height of the first stop block is equal to the height of the slide rail and can prevent the sliding of the lower left end of the scissor fork; when the lower left end of the scissor fork abuts against the right side of the first stop block, the bottom ends of all support rods abut against the upper surface of the base.

[0007] As an improvement of this utility model embodiment, the number of slide rails is multiple, and the multiple slide rails are symmetrically distributed along the front-back direction.

[0008] As an improvement of this utility model embodiment, the number of slide rails is two.

[0009] As an improvement of this utility model embodiment, multiple support rods are fixedly connected by crossbars.

[0010] As an improvement of this utility model embodiment, a plurality of vertical holes corresponding one-to-one with all the support rods are provided on the base, and a downwardly extending limiting rod is provided at the bottom of the support rod. The horizontal dimension of the limiting rod is the same as the horizontal dimension of the corresponding vertical hole. When the support rod abuts against the upper surface of the base, the limiting rod is inserted into the corresponding vertical hole.

[0011] As an improvement of this utility model embodiment, a second stop is provided on the left side of each numerical hole on the base; when the support rod abuts against the upper surface of the base, the limiting rod is inserted into the corresponding vertical hole, and the limiting rod abuts against the right side of the corresponding second stop.

[0012] As an improvement of this utility model embodiment, a first roller is provided at the bottom end of the support rod, and when the left side of the scissor fork abuts against the right side of the first stop, all the first rollers can abut against the upper surface of the base.

[0013] As an improvement of this utility model embodiment, the base is provided with a lever, which can push each support rod to rotate to the right.

[0014] As an improvement of this utility model embodiment, it further includes: a first lifting mechanism, which is capable of driving the platform to move in the vertical direction.

[0015] As an improvement to this utility model embodiment, it further includes: the slide rail is provided with a rotating shaft extending in the front-rear direction, and the first stop block can rotate around the rotating shaft; the portion of the first stop block located on the left side of the rotating shaft is heavier than the portion located on the right side of the rotating shaft; a second lifting mechanism, wherein when the second lifting mechanism applies an upward force to the portion of the first stop block located on the left side of the rotating shaft, the first stop block is in a second state; otherwise, the first stop block is in a first state.

[0016] The fall-prevention lifting platform provided in this embodiment of the present invention has the following advantages: This embodiment of the present invention discloses a fall-prevention lifting platform, comprising: a base, a platform, and a scissor fork; a slide rail is provided on the base, the lower right end of the scissor fork is connected to the base, and the lower left end can slide along the slide rail; several support rods capable of left and right rotation are rotatably connected to the bottom of the platform; a stop block capable of vertical extension and retraction is provided on the slide rail; the height of the stop block can be lower than or equal to the height of the slide rail; when the lower left end of the scissor fork abuts against the right side of the stop block, the bottom ends of all support rods abut against the upper surface of the base. The stop block and support rods can provide double protection for the fall-prevention lifting platform, preventing the platform from falling. Attached Figure Description

[0017] Figure 1 and Figure 2 A schematic diagram of the anti-fall lifting platform provided in the embodiment; Figure 3 A schematic diagram of the base provided in the embodiment. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0019] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0020] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the document and for 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 this utility model. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0021] This utility model embodiment provides a fall-prevention lifting platform, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes: The system comprises a base 1, a platform 2 mounted on the base 1, and a scissor fork 3 positioned between the platform 2 and the base 1. The base 1 is provided with a slide rail 12 extending in the left-right direction. The lower right end of the scissor fork 3 is connected to the base 1, and the lower left end is slidable along the slide rail 12. Here, the lower right end of the scissor fork 3 is rotatably connected to the base 1. When the lower left end of the scissor fork 3 slides to the right, the platform 2 moves upward. Conversely, when the lower left end of the scissor fork 3 slides to the left, the platform 2 moves downward.

[0022] like Figure 1 As shown, the slide rail 12 is a groove, and a second roller 31 is provided at the lower left end of the scissor fork 3. The second roller 31 can slide in the groove.

[0023] A plurality of support rods 41 are rotatably connected to the bottom of the tabletop 2. The support rods 41 can rotate to the left and to the right relative to the tabletop 2. A first stop 11 that can extend and retract in the vertical direction is provided on the slide rail 12. The first stop 11 can be in a first state and a second state, and can switch between the first state and the second state. When the first stop 11 is in the first state, the height of the first stop 11 is lower than the height of the slide rail 12. When the first stop 11 is in the second state, the height of the first stop 11 is equal to the height of the slide rail 12 and can prevent the sliding of the lower left end of the scissor fork 3. When the lower left end of the scissor fork 3 abuts against the right side of the first stop 11, the bottom ends of all support rods 41 abut against the upper surface of the base 1.

[0024] In practical use, when the first stop 11 is in the first state, its height is lower than the height of the slide rail 12. In this case, the lower left end of the scissor fork 3 can slide freely along the slide rail 12 without being obstructed by the first stop 11. However, when the first stop 11 is in the first state, its height is lower than the height of the slide rail 12, and the lower left end of the scissor fork 3 cannot slide freely along the slide rail 12 and will be obstructed by the first stop 11.

[0025] When the platform 2 moves upward to a certain height, the lower left end of the scissor fork 3 abuts against the right side of the first stop 11, and the bottom end of the support rod 41 abuts against the upper surface of the base 1. At this time, the first stop 11 and the support rod 41 will form two support structures, which can effectively prevent the lifting platform from falling.

[0026] exist Figure 1 In the case shown, there are two slide rails 12, which are symmetrically distributed in the front and back directions.

[0027] In this embodiment, there are multiple slide rails 12, which are symmetrically distributed along the front-to-back direction. Figure 1 In the case shown, there are two slide rails 12, which are symmetrically distributed in the front and back directions.

[0028] In this embodiment, there are two slide rails 12.

[0029] In this embodiment, multiple support rods 41 are fixedly connected by a crossbar 42. Here, the crossbar 42 can fix the multiple support rods 41.

[0030] In this embodiment, the base 1 is provided with a plurality of vertical holes corresponding one-to-one with all the support rods 41, and a downwardly extending limiting rod 411 is provided at the bottom of the support rod 41. The horizontal dimension of the limiting rod 411 is the same as the horizontal dimension of the corresponding vertical hole. When the support rod 41 abuts against the upper surface of the base 1, the limiting rod 411 is inserted into the corresponding vertical hole.

[0031] In practical use, preventing the bottom end of the support rod 41 from sliding is crucial to preventing the lifting platform from falling. Therefore, if the limit rod 411 is inserted into the corresponding vertical hole, the bottom end of the support rod 41 can be effectively prevented from sliding.

[0032] In this embodiment, a second stop 14 is provided on the left side of each numerical hole on the base 1; when the support rod 41 abuts against the upper surface of the base 1, the limiting rod 411 is inserted into the corresponding vertical hole, and the limiting rod 411 abuts against the right side of the corresponding second stop 14. Here, the second stop 14 can prevent the limiting rod 411 from moving to the left, thereby greatly improving the stability of the limiting rod 411.

[0033] In this embodiment, a first roller 412 is provided at the bottom end of the support rod 41. When the left side of the scissor fork 3 abuts against the right side of the first stop block 11, all the first rollers 412 can abut against the upper surface of the base 1. Here, as Figure 3 As shown, multiple tracks can be set on the base 1, with one pulley 412 corresponding to one track, so as to facilitate the sliding of the first roller 412.

[0034] In this embodiment, as Figure 2 As shown, a lever 13 is provided on the base 1, which can push each support rod 41 to rotate to the right. Here, the lever 13 is a rod that can rotate about a rotation axis.

[0035] In this embodiment, a first lifting mechanism 5 is also included, which can drive the platform 2 to move vertically. Here, the first lifting mechanism 5 can be a cylinder that can lift the platform 2 upwards.

[0036] This embodiment further includes: the slide rail 12 is provided with a rotating shaft 111 extending in the front-rear direction, and the first stop 11 is rotatable around the rotating shaft 111; the portion of the first stop 11 located on the left side of the rotating shaft 111 is heavier than the portion located on the right side of the rotating shaft 111; a second lifting mechanism 6, which applies an upward force to the portion of the first stop 11 located on the left side of the rotating shaft 111, in which case the first stop 11 is in a second state; otherwise, the first stop 11 is in a first state. Here, the second lifting mechanism 6 can be a cylinder capable of lifting the portion of the first stop 11 located on the left side of the rotating shaft 111.

[0037] The fall arrestor lift consists of a platform 2, a scissor fork 3, and a base 1. When the platform 2 is in a low position, the first lifting mechanism 5 is activated, lifting the platform 2 upwards, thus driving the platform 2 to move vertically. The first roller 412 on the support rod 41 slides on the base 1 until the support rod 41 is directly above the corresponding vertical hole and is in a suspended state. Then, the first lifting mechanism 5 drives the platform 2 to descend, and the first roller 412 enters and exits the corresponding vertical hole. At this time, the platform 2 is in its highest position, and the first stop 11 can prevent the first roller 412 from passing over it. The second lifting mechanism 6 does not apply an upward force to the part of the first stop 11 located to the left of the pivot 111. Due to gravity, the first stop 11 is in a second state, so the first stop 11 can hold the lower left end of the scissor fork 3, thus providing double protection for the fall arrestor lift.

[0038] When it is necessary to lower the platform 2, the first lifting mechanism 5 is activated to slightly lift the platform 2, relieving pressure on the support rods 41. The second lifting mechanism 6 applies an upward force to the portion of the first stop 11 located to the left of the pivot 111, thereby placing the first stop 11 in the second state. Then, the lever 13 pushes each support rod 41 to rotate to the right, thereby driving the support rods 41 to slide to the right on the base 1. At the same time, the first lifting mechanism 5 lowers the platform until the platform 2 is lowered to its lowest point. Figure 3 As shown, a positioning device 7 is also provided on the base 1.

[0039] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fall arrest lifting platform, characterized in that, include: A base (1), a platform (2) disposed on the base (1), and a scissor fork (3) disposed between the platform (2) and the base (1); The base (1) is provided with a slide rail (12) extending in the left and right direction. The lower right end of the scissor fork (3) is connected to the base (1), and the lower left end can slide along the slide rail (12). A plurality of support rods (41) are rotatably connected to the bottom of the tabletop (2), and the support rods (41) are capable of rotating to the left and to the right relative to the tabletop (2); A first stop (11) capable of extending and retracting in the vertical direction is provided on the slide rail (12). The first stop (11) can be in a first state and a second state, and can switch between the first state and the second state. When the first stop (11) is in the first state, the height of the first stop (11) is lower than the height of the slide rail (12). When the first stop (11) is in the second state, the height of the first stop (11) is equal to the height of the slide rail (12) and can prevent the sliding of the lower left end of the scissor fork (3). When the lower end of the left side of the scissor fork (3) abuts against the right side of the first stop (11), the bottom ends of all the support rods (41) abut against the upper surface of the base (1).

2. The fall-prevention lifting platform according to claim 1, characterized in that: The number of slide rails (12) is multiple, and the multiple slide rails (12) are symmetrically distributed along the front and rear directions.

3. The fall-prevention lifting platform according to claim 2, characterized in that: The number of slide rails (12) is two.

4. The fall-prevention lifting platform according to claim 2, characterized in that: Multiple support rods (41) are fixedly connected by crossbars (42).

5. The fall-prevention lifting platform according to claim 1, characterized in that: The base (1) is provided with a number of vertical holes corresponding to all the support rods (41). A downwardly extending limiting rod (411) is provided at the bottom of the support rod (41). The horizontal dimension of the limiting rod (411) is the same as the horizontal dimension of the corresponding vertical hole. When the support rod (41) abuts against the upper surface of the base (1), the limiting rod (411) is inserted into the corresponding vertical hole.

6. The fall-prevention lifting platform according to claim 5, characterized in that: On the base (1), a second stop (14) is provided on the left side of each numerical hole. When the support rod (41) abuts against the upper surface of the base (1), the limiting rod (411) is inserted into the corresponding vertical hole, and the limiting rod (411) abuts against the right side of the corresponding second stop (14).

7. The fall-prevention lifting platform according to claim 1, characterized in that: A first roller (412) is provided at the bottom end of the support rod (41). When the left side of the scissor fork (3) abuts against the right side of the first stop block (11), all the first rollers (412) can abut against the upper surface of the base (1).

8. The fall-prevention lifting platform according to claim 1, characterized in that: A lever (13) is provided on the base (1), which can push each support rod (41) to rotate to the right.

9. The fall arrest lift landing platform of claim 1, wherein, Also includes: The first lifting mechanism (5) can drive the platform (2) to move vertically.

10. The fall arrest lift landing platform of claim 1, wherein, Also includes: The slide rail (12) is provided with a rotating shaft (111) extending in the front-rear direction, and the first stop (11) can rotate around the rotating shaft (111); the portion of the first stop (11) located on the left side of the rotating shaft (111) is heavier than the portion located on the right side of the rotating shaft (111); When the second lifting mechanism (6) applies an upward force to the portion of the first stop (11) located on the left side of the rotating shaft (111), the first stop (11) is in the second state; otherwise, the first stop (11) is in the first state.

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