A trolley lift

Abstract

This utility model discloses a trolley lifting platform. The trolley frame is equipped with a material rack, two transmission chain assemblies, a drive motor, and a lifting platform. The upper and lower support frames of the frame are respectively equipped with an upper rotating shaft and a lower rotating shaft. The upper and lower sprockets of the transmission chain assemblies are fixed to both ends of the rotating shafts. The drive motor is connected to the upper rotating shaft. The lifting platform is horizontally arranged and connected to the chain, and slides vertically with the frame. This utility model improves the convenience and accuracy of inspection, enhances operational safety, and has a compact structure and strong adaptability, making it suitable for maintenance scenarios of various loading and unloading trolleys and multi-layer hot presses.

Description

Technical Field

[0001] This utility model belongs to the field of lamination production technology, and in particular relates to a trolley lifting machine. Background Technology

[0002] In the mass production of laminated products such as PCBs (Printed Circuit Boards), loading and unloading trolleys are key equipment for automating the transfer of materials between external racks and the press. To ensure production quality, workers need to regularly inspect each layer of hot press plates to eliminate problems such as foreign object residue. In existing technology, loading and unloading trolleys are generally equipped with fixed-height maintenance ladders for workers to stand on. However, since hot presses typically contain multiple layers of hot press plates with varying heights, fixed-height maintenance ladders are difficult to adapt to the optimal inspection height for each layer. This forces workers to frequently bend over, tiptoe, or adjust their standing position, which is not only inconvenient and inefficient but also poses safety risks due to instability. Utility Model Content

[0003] Based on this, a trolley lift is provided to address the aforementioned technical problems.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A trolley lifting platform includes a frame on the trolley, on which a material rack is mounted. The platform comprises two transmission chain assemblies, a drive motor, and a lifting platform. The frame has an upper support frame and a lower support frame located outside the left and right side panels of the material rack. A horizontal upper shaft and a lower shaft, respectively, are rotatably mounted on the upper and lower support frames along the front-rear direction of the material rack. Two upper sprockets of the two transmission chain assemblies are fixed to the two ends of the upper shaft, and two lower sprockets of the two transmission chain assemblies are fixed to the two ends of the lower shaft. The drive motor is connected to the upper shaft. The lifting platform is horizontally arranged and connected to the chains of the two transmission chain assemblies. The lifting platform slides vertically with the frame.

[0006] The beneficial effects of this utility model are as follows:

[0007] 1. Improved inspection convenience and accuracy: The lifting platform is raised and lowered by a drive motor and transmission chain assembly. Workers can control the position of the lifting platform according to the height requirements of different layers of hot press plates to ensure that they work at the optimal inspection height and avoid uncomfortable postures such as bending over or tiptoeing, which significantly improves the convenience of operation and the accuracy of inspection.

[0008] 2. Enhanced operational safety: The lifting platform and frame adopt an up-and-down sliding cooperation structure, and are synchronously driven by a dual transmission chain assembly to ensure a smooth and reliable lifting process; the workers stand on the horizontal platform, which has a larger operating space and more stable support compared to traditional escalators, effectively reducing the risk of falls and improving operational safety.

[0009] 3. Compact structure and strong adaptability: The device is integrated into the trolley frame and uses the upper and lower rotating shafts and transmission chain components to realize power transmission. The overall structure is compact and does not require a lot of extra space. It is suitable for loading and unloading trolleys of different specifications and has strong versatility and practicality. Attached Figure Description

[0010] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0011] Figure 1 A three-dimensional structural diagram of a trolley lift provided for an embodiment of this utility model;

[0012] Figure 2 A front view structural schematic diagram of a trolley lift provided for an embodiment of this utility model;

[0013] Figure 3 This is a schematic diagram of the slide rail structure according to an embodiment of the present utility model;

[0014] Figure 4 This is a schematic diagram of the upper support frame according to an embodiment of the present utility model;

[0015] Figure 5 This is a three-dimensional structural diagram of the lifting platform according to an embodiment of the present utility model;

[0016] Figure 6 This is a side view of the lifting platform according to an embodiment of the present utility model. Detailed Implementation

[0017] The embodiments of this utility model will be described below with reference to the accompanying drawings. It should be noted that the embodiments described in this specification are not exhaustive and do not represent the only embodiments of this utility model. The following corresponding embodiments are only for clearly illustrating the utility model content of this patent and are not intended to limit its implementation. For those skilled in the art, different variations and modifications can be made based on the described embodiments. Any obvious variations or modifications that fall within the technical concept and utility model content of this utility model are also within the protection scope of this utility model.

[0018] like Figure 1As shown, this utility model embodiment provides a trolley lift, including two transmission chain assemblies 110, a drive motor 120 and a lifting platform 130.

[0019] The trolley 20 has a frame 210, on which a material rack 220 is provided, and the material rack 220 has left and right side plates 221.

[0020] like Figure 2 As shown, the frame 210 has an upper support frame 211 and a lower support frame 212 located outside the left and right side plates 221 of the material rack 220. The upper support frame 211 and the lower support frame 212 are respectively rotatably equipped with a horizontal upper rotating shaft 213 and a lower rotating shaft 214 along the front and rear direction of the material rack 220.

[0021] Specifically, such as Figure 4 As shown, taking the support frame 211 as an example, it includes two support plates 211a arranged at intervals along the front and rear direction of the material rack 220. The two support plates 211a are fixed to the frame 210 by bolts. Each support plate 211a has a bearing seat 211b, and the bearing on the bearing seat 211b is connected to the corresponding upper rotating shaft 213.

[0022] The structure of the lower support frame 212 is the same as that of the upper support frame 211, and will not be described again here. Its connection structure with the lower rotating shaft 214 can be referred to the upper support frame 211.

[0023] like Figure 3 As shown, the frame 210 also has two slide rails 215 in the vertical direction, and each slide rail 215 has an upper limit block 215a and a lower limit block 215b at its upper and lower ends respectively.

[0024] like Figure 2 As shown, each drive chain assembly 110 consists of an upper sprocket 111, a lower sprocket 112, and a chain 113 that passes over the upper sprocket 111 and the lower sprocket 112.

[0025] The two upper sprockets 111 of the two transmission chain assemblies 110 are respectively fixed at both ends of the upper rotating shaft 213, and the two lower sprockets 112 of the two transmission chain assemblies 110 are respectively fixed at both ends of the lower rotating shaft 214.

[0026] like Figure 6 As shown, each chain 113 is broken to form an upper end 113a and a lower end 113b, and each end has a screw 113c in the vertical direction.

[0027] The drive motor 120 can be connected to the upper rotating shaft 213 via a transmission gear. This is a conventional structure, so the specific structure is not shown in the figure.

[0028] The lifting platform is arranged horizontally at 130 degrees, such as Figure 5 and Figure 6As shown, two pillars 131 are provided at the two rear corners, and the two pillars 131 correspond to the two slide rails 215.

[0029] like Figure 6 As shown, a vertical first mounting plate is fixed to the outside of each column 131 by bolts. An upper ear 131a and a lower ear 131b are fixed to the first mounting plate by bolts at intervals. The screw 113c of the upper end 113a passes through the upper ear 131a and is fixed by two nuts (not shown in the figure) located on the front and back of the upper ear 131a. The screw 113c of the lower end 113b passes through the lower ear 131b and is fixed by two nuts (not shown in the figure) located on the front and back of the lower ear 131b.

[0030] The above structure enables the connection between the lifting platform 130 and the chain 113 of the transmission chain assembly 110, and facilitates the adjustment of the tension of the chain 113. The two nuts on the front and back of each lug serve to prevent loosening.

[0031] The first mounting plate also has a guide bar 131c (PE material) for guiding the chain 113, see [link / reference]. Figure 6 .

[0032] A vertical second mounting plate is bolted to the rear side of the column 131. The rear side of the second mounting plate has a slide block 131d that is slidably connected to the corresponding slide rail 215. (See also...) Figure 5 This enables the lifting platform 130 and the frame 210 to slide vertically together.

[0033] like Figure 5 As shown, the lifting platform 130 is equipped with a protective fence 132, which has a fence gate.

[0034] The protective fence 132 is equipped with a lift control button 140 for easy user control of the lift. The lift control button 140 can be connected to the controller signal of the drive motor 120 via wired or wireless means.

[0035] As can be seen from the above, the trolley lift provided by this utility model has the following beneficial effects:

[0036] 1. Improved inspection convenience and accuracy: The lifting platform is raised and lowered by a drive motor and transmission chain assembly. Workers can control the position of the lifting platform according to the height requirements of different layers of hot press plates to ensure that they work at the optimal inspection height and avoid uncomfortable postures such as bending over or tiptoeing, which significantly improves the convenience of operation and the accuracy of inspection.

[0037] 2. Enhanced operational safety: The lifting platform and frame adopt an up-and-down sliding cooperation structure, and are synchronously driven by a dual transmission chain assembly to ensure a smooth and reliable lifting process; the workers stand on the horizontal platform, which has a larger operating space and more stable support compared to traditional escalators, effectively reducing the risk of falls and improving operational safety.

[0038] 3. Compact structure and strong adaptability: The device is integrated into the trolley frame and uses the upper and lower rotating shafts and transmission chain components to realize power transmission. The overall structure is compact and does not require a lot of extra space. It is suitable for loading and unloading trolleys of different specifications and has strong versatility and practicality.

[0039] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A car lift having a frame on the car, and a rack provided on the frame, characterized in that, The device includes two transmission chain assemblies, a drive motor, and a lifting platform. The frame has an upper support frame and a lower support frame located outside the left and right side plates of the material rack. The upper support frame and the lower support frame are respectively rotatably mounted with a horizontal upper shaft and a lower shaft along the front and rear direction of the material rack. The two upper sprockets of the two transmission chain assemblies are respectively fixed at both ends of the upper shaft, and the two lower sprockets of the two transmission chain assemblies are respectively fixed at both ends of the lower shaft. The drive motor is connected to the upper shaft. The lifting platform is arranged horizontally and connected to the chains of the two transmission chain assemblies. The lifting platform slides vertically with the frame.

2. A car lift according to claim 1, wherein, Both the upper support frame and the lower support frame include two support plates arranged at intervals along the front-rear direction of the material rack. The two support plates are fixed to the frame by bolts. Each support plate has a bearing seat, and the bearing on the bearing seat is connected to the corresponding rotating shaft.

3. The lift according to claim 1, wherein, The lifting platform has two columns at its two rear corners.

4. A car lift according to claim 3, wherein, Each column has an upper ear and a lower ear arranged at intervals on its outer side. The chain is broken to form an upper end and a lower end. Each end has a screw in the vertical direction. The screw at the upper end passes through the upper ear and is fixed by two nuts located on the front and back of the upper ear. The screw at the lower end passes through the lower ear and is fixed by two nuts located on the front and back of the lower ear.

5. A car lift according to claim 3 wherein, The frame has two slide rails in the vertical direction, which correspond to the two columns in front and back. The rear side of the column has a slide seat that is slidably connected to the corresponding slide rail.

6. A car lift according to claim 5 wherein, Each slide rail is equipped with an upper limit block and a lower limit block at its upper and lower ends, respectively.

7. The lift according to claim 3, wherein, The lifting platform is equipped with a protective fence, and the protective fence is equipped with a gate.

8. A car lift according to claim 7, wherein, The protective fence is equipped with a lift control button.

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