A lifting platform

Abstract

This application relates to the technical field of tobacco equipment maintenance, and in particular to a lifting platform. The lifting platform includes a base, a second platform plate, a drive mechanism, and guide rods. A first platform plate is mounted on the base. Second platform plates are vertically spaced above the first platform plate. The drive mechanism is mounted on the first platform plate, and its drive end is connected to the second platform plate. The drive mechanism is used to move the second platform plate vertically up and down. Guide rods pass through both the first and second platform plates. Locking elements that are detachably connected to the guide rods are provided on both the upper and lower sides of the first and second platform plates. This application can replace manual support and handling of the ash discharge valve during dust collector maintenance, thereby reducing safety hazards and maintenance time.

Description

Technical Field

[0001] This application relates to the technical field of ash discharge valve disassembly and assembly, and in particular to a lifting platform. Background Technology

[0002] Cigarette factories are generally equipped with dust removal systems. These systems effectively remove dust and particulate matter from tobacco and the environment, ensuring the purity of the tobacco and the cleanliness of the environment. If a dust collector malfunctions, it will affect the normal production of the cigarette packaging and tobacco processing workshops. Therefore, routine maintenance and repair of dust collectors are crucial for ensuring production.

[0003] Currently, during dust collector operation, the ash discharge valve needs maintenance due to factors such as planned repairs, foreign object ingestion, ash blockage, and metal edge friction jamming. This maintenance requires disassembling the ash discharge valve. Existing technology relies on manual support and handling of the valve. Because the ash discharge valve is heavy, disassembly poses significant safety hazards, and relying solely on manual lifting greatly increases time consumption and affects maintenance efficiency. Utility Model Content

[0004] This application provides a lifting platform that can replace manual labor in supporting and moving the ash discharge valve during dust collector maintenance, thereby reducing safety hazards and maintenance time.

[0005] This application provides a lifting platform for conveying ash discharge valves. The lifting platform includes a base, a second platform plate, a drive mechanism, and guide rods. A first platform plate is mounted on the base, and second platform plates are vertically spaced above the first platform plate. The drive mechanism is mounted on the first platform plate, and its drive end is connected to the second platform plate. The drive mechanism is used to move the second platform plate vertically up and down. Guide rods pass through both the first and second platform plates. Locking members, detachably connected to the guide rods, are provided on both the upper and lower sides of the first and second platform plates. The locking members on the upper and lower sides of the first platform plate clamp the first platform plate, connecting the guide rods to it. Similarly, the locking members on the upper and lower sides of the second platform plate clamp the second platform plate, connecting the guide rods to it.

[0006] When the operator needs to remove the ash discharge valve, first move the lifting platform below the ash discharge valve and start the drive mechanism. The drive mechanism will then raise the second platform plate until it is flush with the bottom of the ash discharge valve. The drive mechanism will then stop, and the operator will remove the ash discharge valve from the dust collector body, allowing it to fall onto the second platform plate. The operator will then restart the drive mechanism, which will reverse its direction, moving the second platform plate and the ash discharge valve downwards to separate the ash discharge valve from the dust collector body.

[0007] Conversely, when the operator needs to install the ash discharge valve onto the dust collector body, the operator first places the ash discharge valve on the second platform plate and starts the drive mechanism to move the second platform plate and the ash discharge valve upwards until the ash discharge valve moves to the preset position, at which point the drive mechanism stops. The operator then installs the ash discharge valve onto the dust collector body. After the ash discharge valve is installed, the operator starts the drive mechanism again, and the drive mechanism reverses its direction, moving the unloaded second platform plate downwards, separating the second platform plate from the ash discharge valve, thus completing the installation of the ash discharge valve.

[0008] When overhauling the dust collector, the lifting platform provided in this application can support and move the ash discharge valve, thereby replacing manual labor, reducing safety hazards, and shortening maintenance time.

[0009] Furthermore, this application incorporates a locking mechanism to connect the guide rod to either the first or second platform plate. When the guide rod is connected to the first platform plate, it will not move with the second platform plate. When the guide rod is connected to the second platform plate, it will move with the second platform plate. Operators can selectively connect the guide rod to either the first or second platform plate based on the actual site conditions, thereby preventing interference between the guide rod and other structures during operation, or hindering the operator's disassembly and assembly of the ash discharge valve, thus broadening the application scenarios of the lifting platform.

[0010] Optionally, the guide rod is a screw rod, and the locking element is a nut, which is sleeved on the outside of the screw rod and threadedly connected to it. When the nuts on both the upper and lower sides of the first platform plate abut against and are locked to the first platform plate, the guide rod is connected to the first platform plate. When the nuts on both the upper and lower sides of the second platform plate abut against and are locked to the second platform plate, the guide rod is connected to the second platform plate. For example, there are four guide rods, which are respectively located near the four corners of the first and second platform plates.

[0011] Optionally, the drive mechanism includes a mounting bracket, a worm gear, and a worm shaft. The mounting bracket is mounted on a first platform plate. The worm gear is rotatably connected to the mounting bracket. The worm shaft extends vertically and is threadedly connected to the worm gear; its upper end is connected to a second platform plate. A clearance hole is also provided on the first platform plate, through which the lower end of the worm shaft can extend below the first platform plate. When the drive mechanism is activated, the worm gear rotates. Based on the threaded connection between the worm gear and the worm gear, and the guide rod between the first and second platform plates, the worm shaft can move up and down, thereby driving the second platform plate to move up and down.

[0012] This application does not limit the driving method of the turbine; it can be driven manually or electrically, depending on the actual situation. When the turbine is driven manually, a handwheel is connected to the end of the turbine, and the operator can drive the turbine to rotate by turning the handwheel. When the turbine is driven electrically, a motor is connected to the end of the turbine, and the motor can drive the turbine to rotate after starting.

[0013] Optionally, the bottom of the ash discharge valve is provided with at least two positioning holes, and the second platform plate is provided with at least two positioning pins. When the ash discharge valve is placed above the second platform plate, each positioning hole can be inserted into its corresponding positioning pin to position the ash discharge valve and thus prevent the ash discharge valve from moving.

[0014] Optionally, the base includes a first platform plate and a bracket, with the bracket located below the first platform plate to support the first platform plate.

[0015] Optionally, the support includes two support leg assemblies, which are spaced apart along a first direction. Each support leg assembly includes a crossbeam and two support legs spaced apart along a second direction. The first direction is perpendicular to the second direction. The two ends of the crossbeam are connected to the two corresponding support legs respectively. A centralized dust collection pipe extending along the second direction is provided below the ash discharge valve. The space between the two support leg assemblies is large enough to accommodate the centralized dust collection pipe, thereby preventing interference between the dust collection pipe and the support.

[0016] Optionally, each support leg is equipped with a brake roller. These rollers allow the operator to easily move the lifting platform under or away from the ash discharge valve. Once the lifting platform has reached the designated position, the operator can depress the brake block on the brake roller to prevent it from rolling and thus stop the lifting platform from moving. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a dust collector and an ash discharge valve in the prior art is shown;

[0018] Figure 2 It shows Figure 1 Sectional view along axis AA;

[0019] Figure 3 A perspective view of a lifting platform provided according to an embodiment of this application is shown;

[0020] Figure 4 A schematic diagram of the usage environment of the lifting platform provided in one embodiment of this application is shown;

[0021] Figure 5(a) shows a side view of the lifting platform provided in one embodiment of this application. Figure 1 ;

[0022] Figure 5(b) shows a side view of the lifting platform provided in one embodiment of this application. Figure 2 ;

[0023] Figure 6(a) shows a side view of the lifting platform provided in one embodiment of this application. Figure 3 ;

[0024] Figure 6(b) shows a side view of the lifting platform provided in one embodiment of this application. Figure 4 ;

[0025] Figure 7 A top view of Figure 6(b) is shown. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0029] In the description of this embodiment, it should be noted that the terms "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model 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 utility model.

[0030] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0031] refer to Figure 1 Currently, cigarette factories generally have dust collectors 100, which are supported by brackets 300. A discharge valve 200 is installed at the bottom of the dust collector 100. During operation, the discharge valve 200 may need maintenance due to planned repairs, foreign object intake, ash blockage, or metal edge friction jamming. During maintenance, the discharge valve 200 needs to be removed from the dust collector 100.

[0032] Figure 2 It shows Figure 1 Sectional view along line AA. (Reference) Figure 1 and Figure 2 In the prior art, the support 300 includes four support legs 301, and a crossbeam 302 is provided between two adjacent support legs 301. The ash discharge valve 200 is located in the middle of the rectangular frame formed by the four crossbeams 302 (e.g., Figure 2 (As shown). Existing technology relies on manual support and handling of the ash discharge valve 200, requiring the operator to crawl into the space between the crossbeam 302 and the ash discharge valve 200. However, due to the weight of the ash discharge valve 200 and the distance between it and the crossbeam 302 (as shown), this method is inefficient. Figure 2 The size L shown in the figure is small, so it is difficult and unsafe for operators to operate during disassembly. Moreover, relying solely on manual lifting will greatly increase the time consumption and affect the maintenance efficiency.

[0033] To address the aforementioned problems, this application provides a lifting platform that can replace manual labor in supporting and moving the ash discharge valve 200 during the maintenance of the dust collector 100, thereby reducing safety hazards and shortening maintenance time. To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model are described in further detail below.

[0034] refer to Figure 3The lifting platform provided in this application includes a base 1, a second platform plate 3, a drive mechanism 4, and a guide rod 5. The base 1 has a first platform plate 2, and the second platform plate 3 is vertically spaced above the first platform plate 2. The drive mechanism 4 is located on the first platform plate 2, and its drive end is connected to the second platform plate 3. The drive mechanism 4 is used to move the second platform plate 3 vertically up and down. The guide rod 5 passes through the first platform plate 2 and the second platform plate 3. Locking members 6, detachably connected to the guide rod 5, are provided on both the upper and lower sides of the first platform plate 2 and the upper and lower sides of the second platform plate 3. The locking members 6 on the upper and lower sides of the first platform plate 2 can clamp the first platform plate 2, connecting the guide rod 5 to the first platform plate 2. The locking members 6 on the upper and lower sides of the second platform plate 3 can clamp the second platform plate 3, connecting the guide rod 5 to the second platform plate 3.

[0035] refer to Figure 4 The lifting platform provided in this application can be completely placed within the space between the four support legs 301 below the dust collector 100. When the operator needs to remove the ash discharge valve 200, the lifting platform is first moved below the ash discharge valve 200, such as... Figure 4 As shown. Then, the drive mechanism 4 is activated, causing the second platform plate 3 to rise until it is in contact with the bottom of the ash discharge valve 200. The drive mechanism 4 then stops, and the operator removes the ash discharge valve 200 from the dust collector body, allowing it to fall onto the second platform plate 3. The operator then restarts the drive mechanism 4, which reverses its direction, causing the second platform plate 3 and the ash discharge valve 200 to move downwards, separating the ash discharge valve 200 from the dust collector body.

[0036] Conversely, when the operator needs to install the ash discharge valve 200 onto the dust collector body, the operator first places the ash discharge valve 200 on the second platform plate 3 and starts the drive mechanism 4 to move the second platform plate 3 and the ash discharge valve 200 upwards until the ash discharge valve 200 moves to the preset position, at which point the drive mechanism 4 stops. The operator then installs the ash discharge valve 200 onto the dust collector body. After the ash discharge valve 200 is installed, the operator starts the drive mechanism 4 again. The drive mechanism 4 reverses its direction, moving the unloaded second platform plate 3 downwards, separating the second platform plate 3 from the ash discharge valve 200, thus completing the installation of the ash discharge valve 200.

[0037] When overhauling the dust collector, the lifting platform provided in this application can support and move the ash discharge valve 200, thereby replacing manual labor, reducing safety hazards, and shortening maintenance time. Furthermore, by providing a locking element 6, this application allows the operator to selectively connect the guide rod 5 to the first platform plate 2 or the second platform plate 3 according to the actual situation.

[0038] In some embodiments of this application, the guide rod 5 is a screw, and the locking member 6 is a nut, which is sleeved on the outside of the screw and threadedly connected to it. When the nuts on the upper and lower sides of the first platform plate 2 are tightened and clamp the first platform plate 2, the guide rod 5 is connected to the first platform plate 2. When the nuts on the upper and lower sides of the second platform plate 3 are tightened and clamp the second platform plate 3, the guide rod 5 is connected to the second platform plate 3. Exemplarily, there are four guide rods 5, which are respectively located near the four corners of the first platform plate 2 and the second platform plate 3.

[0039] The following example, using the drive mechanism 4 to move the second platform plate 3 downwards, illustrates how the operator can adjust the locking element 6 according to the usage environment.

[0040] When the space above the second platform plate 3 is small and the space below the first platform plate 2 is large, referring to Figure 5(a), before starting the drive mechanism 4 to move the second platform plate 3 downward, the operator first rotates the nut 61 located above the first platform plate 2, causing the nut 61 to move upward. Then, the drive mechanism 4 is started to move the second platform plate 3 downward. Because the nuts 62 on both sides of the second platform plate 3 clamp the second platform plate, the guide rod 5 is fixedly connected to the second platform plate 3, and the guide rod 5 moves downward along with the second platform plate 3. At the same time, because the adjusted nut 61 is spaced a certain distance from the first platform plate 2 (as shown by dimension L1 in Figure 5(a)), the nut 61 will not interfere with the first platform plate 2 during the downward movement of the guide rod 5. When the second platform plate 3 moves to the preset position, as shown in Figure 5(b), the length of the guide rod 5 below the first platform plate 2 will increase. In environments where there are high requirements for the space between the top of the guide rod 5 and the dust collector 100, the guide rod 5 can be moved downward by using the adjusting nut 61, thereby increasing the space between the top of the guide rod 5 and the dust collector 100, making it easier for the operator to perform subsequent maintenance on the dust collector 100.

[0041] When the space above the second platform plate 3 is large and the space below the first platform plate 2 is small, referring to Figure 6(a), before starting the drive mechanism 4 to move the second platform plate 3 downward, the operator first rotates the nut 63 located below the second platform plate 3 to move the nut 63 downward. Then, the drive mechanism 4 is started to move the second platform plate 3 downward. Because the nuts 64 on both sides of the first platform plate 2 clamp the first platform plate 2, the guide rod 5 is fixedly connected to the first platform plate 2 and will not move downward with the second platform plate 3. At the same time, because the adjusted nut 63 is spaced a certain distance from the second platform plate 3 (as shown by dimension L2 in Figure 6(a)), the nut 63 will not interfere with the second platform plate 3 during its downward movement. When the second platform plate 3 moves to the preset position, as shown in Figure 6(b), the length of the guide rod 5 above the second platform plate 3 will increase. In environments where the space below the first platform plate 2 is critical, the above-mentioned method of adjusting the nut 63 prevents the guide rod 5 from moving downward with the second platform plate 3, thereby increasing the space below the first platform plate 2.

[0042] This embodiment, by setting a locking component 6, allows the operator to adjust the locking component 6 according to the actual situation on site, thereby preventing the guide rod 5 of the lifting platform from interfering with other structures during operation, or hindering the operator from disassembling and assembling the ash discharge valve 200, thus making the application scenarios of the lifting platform more extensive.

[0043] Optionally, referring to Figure 6(b), the drive mechanism 4 includes a mounting bracket 41, a turbine 42, and a worm gear 43. The mounting bracket 41 is mounted on the first platform plate 2. The turbine 42 is rotatably connected to the mounting bracket 41. The worm gear 43 extends vertically and is threadedly connected to the turbine 42. The upper end of the worm gear 43 is connected to the second platform plate 3. The first platform plate 2 is also provided with a clearance hole, through which the lower end of the worm gear 43 can extend to the underside of the first platform plate 2. When the drive mechanism 4 is activated, the turbine 42 rotates, driving the worm gear 43 to move up and down, thereby driving the second platform plate 3 to move up and down.

[0044] This application does not limit the driving method of the turbine 42. The turbine 42 can be driven manually or electrically, depending on the actual situation. When the turbine 42 is driven manually, a handwheel (not shown in the figure) is connected to the end of the turbine 42, and the operator can drive the turbine 42 to rotate by turning the handwheel. When the turbine 42 is driven electrically, a motor (not shown in the figure) is connected to the end of the turbine 42, and the motor can drive the turbine 42 to rotate after starting.

[0045] Optionally, the bottom of the ash discharge valve 200 is provided with at least two positioning holes, and the second platform plate 3 is provided with at least two positioning pins 7. When the ash discharge valve 200 is placed above the second platform plate 3, each positioning hole can be inserted into its corresponding positioning pin 7 to position the ash discharge valve 200, thereby preventing the ash discharge valve 200 from moving. Figure 7 As shown in the top view of Figure 6(b), exemplarily, refer to Figure 7 There are four positioning pins 7, which are set near the four guide rods 5 respectively.

[0046] In some embodiments of this application, reference is made to Figure 3 In addition to the first platform plate 2, the base 1 also includes a bracket 8, which is located below the first platform plate 2 and is used to support the first platform plate 2.

[0047] Optionally, the bracket 8 includes two support leg assemblies, the two support leg assemblies being along a first direction (e.g., Figure 3 The support legs are spaced apart (as shown in the X direction), and each support leg assembly includes a crossbeam 82 and a support along the second direction (as shown in the X direction). Figure 3 The two support legs 81 are spaced apart in the Y direction (as shown in the figure), and the X direction is perpendicular to the Y direction. The two ends of the crossbeam 82 are connected to the two support legs 81 corresponding to it.

[0048] In the prior art, reference Figure 1 Below the ash discharge valve 200, a centralized dust collection pipe 400 extending in the Y direction is provided. In this embodiment, reference... Figure 4 The space between the two support legs allows the dust collection pipe 400 to pass through, thus preventing interference between the dust collection pipe 400 and the support 8.

[0049] Optional, see reference Figure 3 Each support leg 81 is equipped with a brake roller 9 underneath. By providing brake rollers 9, the operator can easily move the lifting platform under or out of the ash discharge valve 200. When the lifting platform is moved to the designated position, the operator can step on the brake block on the brake roller 9 to prevent the roller from braking and thus prevent the lifting platform from moving.

[0050] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A lifting platform for conveying ash discharge valves, characterized in that, include: The base has a first platform plate on it; The second platform plate is arranged vertically at intervals above the first platform plate; A drive mechanism is provided on the first platform plate, and the drive end of the drive mechanism is connected to the second platform plate. The drive mechanism is used to drive the second platform plate to move up and down in the vertical direction. The guide rod passes through the first platform plate and the second platform plate; The first platform plate and the second platform plate are provided with locking members on their upper and lower sides that are detachably connected to the guide rod; wherein, the locking members on the upper and lower sides of the first platform plate can clamp the first platform plate so that the guide rod is connected to the first platform plate; the locking members on the upper and lower sides of the second platform plate can clamp the second platform plate so that the guide rod is connected to the second platform plate.

2. The lifting platform according to claim 1, characterized in that, The guide rod is a screw, and the locking element is a nut. The nut is sleeved on the outside of the screw and threadedly connected to the screw.

3. A lifting platform according to claim 1, characterized in that, The number of guide rods is four, and the four guide rods are respectively set near the four corners of the first platform plate and the second platform plate.

4. A lifting platform according to claim 1, characterized in that, The drive mechanism includes: The mounting bracket is mounted on the first platform plate; A turbine is rotatably connected to the mounting bracket; A worm gear extends vertically and is threadedly connected to the turbine. The upper end of the worm gear is connected to the second platform plate. The first platform plate is also provided with a clearance hole, through which the lower end of the worm can extend to the bottom of the first platform plate.

5. A lifting platform according to claim 4, characterized in that, The drive mechanism also includes a handwheel, which is connected to the turbine.

6. A lifting platform according to claim 4, characterized in that, The drive mechanism also includes a motor, which is connected to the turbine.

7. A lifting platform according to claim 1, characterized in that, The bottom of the ash discharge valve is provided with at least two positioning holes, and the second platform plate is provided with at least two positioning pins. When the ash discharge valve is placed above the second platform plate, each of the positioning holes can be inserted into the corresponding positioning pin.

8. A lifting platform according to any one of claims 1 to 7, characterized in that, The base includes the first platform plate and a bracket, with the bracket located below the first platform plate to support the first platform plate.

9. A lifting platform according to claim 8, characterized in that, The support includes two support leg assemblies, which are spaced apart along a first direction. Each support leg assembly includes a crossbeam and two support legs spaced apart along a second direction. The first direction is perpendicular to the second direction. The two ends of the crossbeam are respectively connected to the two corresponding support legs. Below the ash discharge valve, there is a dust collection pipe extending along the second direction. The space between the two support leg assemblies is large enough to accommodate the dust collection pipe passing through.

10. A lifting platform according to claim 9, characterized in that, Each of the aforementioned support legs is equipped with a brake roller at its bottom.

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