Guardrail lifting platform

Abstract

The utility model discloses a guardrail lifting platform which comprises a lengthwise base and guardrails located on the two transverse sides of the base, and the base is provided with a platform extending in the lengthwise direction and side walls extending downwards from the two transverse sides of the platform. The guardrail is connected to the outer surface of the side wall and provided with an upper transverse rod extending in the longitudinal direction, a lower transverse rod located below the upper transverse rod and a vertical rod connected with the upper transverse rod and the lower transverse rod. The guardrail lifting platform comprises an electric window lifting mechanism fixedly held on the side wall, the electric window lifting mechanism is provided with a piston rod extending in the vertical direction, the piston rod is connected to the lower portion of the upper transverse rod, and the electric window lifting mechanism drives the piston rod to move in the vertical direction so as to drive the guardrail to move in the vertical direction relative to the base. The guardrails are arranged in a lifting mode, the transfer height when objects are hoisted to the platform is reduced, workers can go up and down the platform conveniently, and therefore the working efficiency of the workers going up and down the platform and the working efficiency of material placing are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting devices for ground-mounted platform guardrails, and in particular to a lifting platform for guardrails used in wind tunnel projects. Background Technology

[0002] In some automotive research and development companies, it is necessary to construct automotive wind tunnel facilities. The intake and exhaust recirculation cylinders are typically connected to a lifting test platform. This lifting test platform is usually 4.9 meters long and 2.9 meters wide. The test specimens are placed onto the platform using a lifting vehicle. The guardrails on both sides of the platform need to be lowered during placement of the test specimens to prevent collisions during transport. After the test specimens are placed, the guardrails are raised again to protect them.

[0003] The existing solution is a fixed snap-on type. The window lifting mechanism is prone to getting stuck and malfunctioning during the rising and falling process. In addition, the contact area between the fixed position and the shaft of the snap-on type is small. If the window cannot be raised and lowered smoothly during the placement of the test piece, it will lead to the risk of collision and falling. Therefore, the lifting process is dangerous, which increases the later maintenance cost and maintenance difficulty, and increases the experimental time cost. The overall efficiency needs to be improved.

[0004] Therefore, it is hoped that a new type of liftable guardrail platform can be proposed to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this utility model is to provide a liftable guardrail platform, which has the advantages of simple structure, low failure rate, low installation and maintenance cost, and effectively improves production efficiency.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a liftable guardrail platform, comprising a longitudinally elongated base and guardrails located on both lateral sides of the base. The base has a platform extending longitudinally and sidewalls extending downward from both lateral sides of the platform. The guardrails are connected to the outer surface of the sidewalls and have an upper horizontal bar extending longitudinally, a lower horizontal bar located below the upper horizontal bar, and a vertical bar connecting the upper and lower horizontal bars. The liftable guardrail platform includes an electric window-lifting mechanism fixed to the sidewalls. The electric window-lifting mechanism has a piston rod extending vertically, which is connected below the upper horizontal bar. The electric window-lifting mechanism drives the piston rod to move vertically, thereby causing the guardrail to move vertically relative to the base.

[0007] In a preferred embodiment, the sidewall is provided with a plurality of sleeves on its outer surface. The sleeves are fitted around the outer periphery of the vertical rod and located between the upper horizontal rod and the lower horizontal rod. The vertical rod moves vertically relative to the platform within the sleeves.

[0008] In a preferred embodiment, the liftable guardrail platform includes several columns connected to the base, the columns extending downward from the bottom of the platform.

[0009] In a preferred embodiment, the guardrail has a protective state and a placement state, and the electric window lifting mechanism drives the guardrail to switch between the protective state and the placement state.

[0010] In a preferred embodiment, when the guardrail is in the protective state, the lower crossbar abuts against the bottom of the sleeve; when the guardrail is in the placement state, the upper crossbar abuts against the top of the sleeve.

[0011] In a preferred embodiment, when the guardrail is in the placement state, the top of the upper crossbar is not higher than the top surface of the platform in the vertical direction.

[0012] In a preferred embodiment, when the guardrail is in the placed state, the bottom of the lower horizontal bar is vertically higher than the bottom of the upright.

[0013] In a preferred embodiment, several guardrails are provided on each of the two lateral sides of the base, and each guardrail is provided with a corresponding electric window lifting mechanism.

[0014] In a preferred embodiment, each of the guardrails is provided with an upper crossbar and two lower crossbars located below the upper crossbar, and the piston rod of the electric window lifting mechanism is located longitudinally between the two lower crossbars and connected below the upper crossbar.

[0015] In a preferred embodiment, each guardrail is provided with several vertical bars symmetrically arranged on both longitudinal sides of the piston rod, and at least one vertical bar on each longitudinal side of the piston rod passes through the sleeve.

[0016] Compared with existing technologies, this utility model has the following advantages: The liftable guardrail platform includes an electric window lifting mechanism fixed to the side wall. The electric window lifting mechanism is equipped with a piston rod extending vertically. The piston rod is connected to the lower part of the upper crossbar. The electric window lifting mechanism drives the piston rod to move vertically, thereby causing the guardrail to move vertically relative to the base. The liftable guardrail reduces the transfer height when hoisting items onto the platform and facilitates personnel getting on and off the platform, thus improving the work efficiency of personnel getting on and off the platform and material placement. At the same time, it avoids the dangers of collisions between items and the guardrail during loading and unloading, as well as the risk of personal injury to personnel when getting on and off the platform. Attached Figure Description

[0017] Figure 1This is a three-dimensional schematic diagram of the lifting platform of the guardrail in a preferred embodiment of the present invention.

[0018] Figure 2 yes Figure 1 The front view of the liftable guardrail platform shown. Detailed Implementation

[0019] Please see Figures 1 to 2 As shown, a preferred embodiment of this utility model discloses a liftable guardrail platform 100, which can be used in automotive wind tunnel projects. The liftable guardrail platform 100 features a simple structure, low failure rate, and low installation and maintenance costs, effectively improving production efficiency. The liftable guardrail platform 100 includes a longitudinally elongated base 10, guardrails 20 located on both lateral sides of the base 10, an electric window lifting mechanism 30 fixed to the base 10, and several columns 40 connected to the base 10, which support the base 10 above the ground.

[0020] The base 10 has a platform 11 extending longitudinally and two side walls 12 extending downward from the lateral sides of the platform 11. The guardrail 20 is connected to the lateral outer surface of the side wall 12. The column 40 extends downward from the bottom of the platform 11, so that the platform 11 is higher than the ground by the column 40 to have a certain height, and the platform 11 is used to support personnel or place materials.

[0021] The guardrail 20 has an upper horizontal bar 21 extending longitudinally, a lower horizontal bar 22 located below the upper horizontal bar 21, and several vertical bars 23 connecting the upper horizontal bar 21 and the lower horizontal bar 22. The side wall 12 has several sleeves 121 located on its outer surface. The sleeves 121 are fitted around the outer periphery of the vertical bars 23 and located between the upper horizontal bar 21 and the lower horizontal bar 22, so that the vertical bars 23 can move vertically relative to the platform 11 within the sleeves 121.

[0022] The electric window lifting mechanism 30 is fixed to the side wall 12 and has a vertically extending piston rod 31. The piston rod 31 is connected to the lower part of the upper crossbar 21. The electric window lifting mechanism 30 drives the piston rod 31 to move vertically, thereby causing the guardrail 20 to move vertically relative to the base 10. In this embodiment, the guardrail 20 has a protective state and a placement state, and the electric window lifting mechanism 30 drives the guardrail 20 to switch between the protective state and the placement state.

[0023] When the guardrail 20 is in the protective state, the lower crossbar 22 abuts against the bottom of the sleeve 121. At this time, the guardrail 20 is higher than the top surface of the platform 11 to protect personnel and materials on the platform 11. When the guardrail 20 is in the placement state, the upper crossbar 21 abuts against the top of the sleeve 121. At this time, the top of the upper crossbar 21 is not higher than the top surface of the platform 11 in the vertical direction, and the bottom of the lower crossbar 22 is higher than the bottom of the column 40 in the vertical direction; so as to facilitate personnel getting on and off the platform 11 and materials being placed on the platform 11.

[0024] The height-adjustable design of the guardrail 20 reduces the transfer height when materials are hoisted onto the platform 11 and facilitates personnel getting on and off the platform 11, thereby improving the work efficiency of personnel getting on and off the platform 11 and material placement. At the same time, it avoids the dangers of collisions between the guardrail 20 and the materials themselves when loading and unloading, and reduces the risk of personal injury to personnel when getting on and off the platform 11.

[0025] Specifically, several guardrails 20 are provided on each of the horizontal sides of the base 10, and each guardrail 20 is provided with a corresponding electric window lifting mechanism 30; in this embodiment, two guardrails 20 are provided on each of the horizontal sides of the base 10. Each guardrail 20 is provided with an upper horizontal bar 21 and two lower horizontal bars 22 located below the upper horizontal bar 21. The piston rod 31 of the electric window lifting mechanism 30 is located between the two lower horizontal bars 22 in the longitudinal direction and connected to the lower part of the upper horizontal bar 21. At the same time, each guardrail 20 is provided with several vertical bars 23 symmetrically arranged on both sides of the longitudinal direction of the piston rod 31, and at least one vertical bar 23 on each side of the longitudinal direction of the piston rod 31 passes through the sleeve 121; in this embodiment, each guardrail is provided with six vertical bars 23, and four of the vertical bars 23 pass through the corresponding sleeve 121.

[0026] In this invention, the liftable platform 100 includes an electric window lifting mechanism 30 fixed to the side wall 12. The electric window lifting mechanism 30 has a piston rod 31 extending vertically. The piston rod 31 is connected to the lower part of the upper crossbar 21. The electric window lifting mechanism 30 drives the piston rod 31 to move vertically, thereby causing the guardrail 20 to move vertically relative to the base 10. The liftable design of the guardrail 20 reduces the transfer height when items are hoisted onto the platform 11 and facilitates personnel getting on and off the platform 11, thereby improving the work efficiency of personnel getting on and off the platform 11 and material placement. At the same time, it avoids the dangers of collisions between items and the guardrail 20 and the items themselves when loading and unloading, and reduces the risk of personal injury to personnel when getting on and off the platform 11.

[0027] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. A guard-rail liftable platform comprising an elongated base and guard rails located on both lateral sides of the base, the base being provided with a platform extending in the longitudinal direction and side walls extending downward from both lateral sides of the platform, the guard rails being connected to the outer surfaces of the side walls and being provided with upper crossbars extending in the longitudinal direction, lower crossbars located below the upper crossbars, and vertical bars connecting the upper crossbars and the lower crossbars; characterized in that: The guardrail liftable platform comprises electric window lifting mechanisms held on the side walls, the electric window lifting mechanisms are provided with piston rods extending vertically, the piston rods are connected below the upper cross bars, the electric window lifting mechanisms drive the piston rods to move vertically, thereby driving the guardrails to move vertically relative to the bases.

2. The railing liftable platform of claim 1, wherein: The side walls are provided with sleeves on outer surfaces, the sleeves are sleeved on outer peripheries of the vertical bars and between the upper cross bars and the lower cross bars, the vertical bars move vertically relative to the platforms in the sleeves.

3. The railing liftable platform of claim 2, wherein: The guardrail liftable platform comprises upright columns connected to the bases, the upright columns extend downward from bottom surfaces of the platforms.

4. The railing liftable platform of claim 3, wherein: The guardrails have guard states and placement states, the electric window lifting mechanisms drive the guardrails to switch between the guard states and the placement states.

5. The railing liftable platform of claim 4, wherein: When the guardrails are in the guard states, the lower cross bars abut against bottoms of the sleeves; when the guardrails are in the placement states, the upper cross bars abut against tops of the sleeves.

6. The railing liftable platform of claim 4, wherein: When the guardrails are in the placement states, tops of the upper cross bars are not higher than top surfaces of the platforms in the vertical direction.

7. The railing liftable platform of claim 6, wherein: When the guardrails are in the placement states, bottoms of the lower cross bars are higher than bottoms of the upright columns in the vertical direction.

8. The railing liftable platform of claim 2, wherein: The bases are each provided with a plurality of the guardrails on transverse sides, and each of the guardrails is provided with one of the electric window lifting mechanisms.

9. The railing liftable platform of claim 8, wherein: Each of the guardrails is provided with one of the upper cross bars and two of the lower cross bars below the upper cross bar, the piston rods of the electric window lifting mechanisms are between the two lower cross bars in the longitudinal direction and are connected below the upper cross bar.

10. The railing liftable platform of claim 9, wherein: Each of the guardrails is provided with a plurality of the vertical bars symmetrically arranged on longitudinal sides of the piston rods, and at least one of the vertical bars on each of the longitudinal sides of the piston rods passes through the sleeve.

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