A sealed lift control box

Abstract

The utility model provides a sealed lifting control box, including main box, back cover, control button and connector, the main box is concave box, is arranged as open side to its back, can use screw and nail the back cover in the open side of main box, form the closed main body of sealed lifting control box, still be provided with the hanging along the edge around back cover, is provided with the mounting hole on the hanging along the edge, can use screw and install to the workbench through the mounting hole back cover, control button setting in the front of main box provides the control interface for the user, be provided with control main board in main box, resolve and forward the control action of user to control button, be provided with the connector on control main board, connector passes through back cover, can be connected with third party equipment and the interactive control information through the signal line further, specifically, control main board gathers the state parameter of third party equipment through the connector, and will sealed lifting control box's control command output to third party equipment.

Description

Technical Field

[0001] This utility model relates to the field of automatic control technology, specifically to a sealed lifting control box. Background Technology

[0002] Currently, to meet the needs of intelligent cruise ships for sunshade, rain protection, and cabin closure, a retractable canopy is required. The canopy needs to be raised when the ship departs and lowered when it returns to port. This raising / lowering process involves the separate operation of multiple lifting rods. Each lifting rod operates independently after responding to control commands, ultimately reaching the same height to avoid structural problems caused by excessive height differences.

[0003] However, in existing technologies, a single lifting mast is controlled by a single controller, making it difficult to achieve separate control of multiple masts within a reasonable control time difference, ensuring that all masts ultimately reach the same height. If the height difference between different lifting masts exceeds a set threshold, it may cause lateral strain on the ceiling, or even lead to deformation and jamming. Especially when some lifting masts fail to operate in time due to response delays or mechanical failures, the continued operation of the remaining masts will create height differences, thereby causing additional stress on the ceiling structure and affecting the equipment's lifespan and safety.

[0004] Moreover, traditional single-control machines are not suitable for aquatic environments and are easily corroded by rainwater or salt spray.

[0005] Therefore, there is an urgent need for a waterproof lifting control box that can provide multi-bar lifting control capabilities, enabling each lifting bar to respond to commands within a reasonable control time difference and ultimately reach the same height, thereby reducing mechanical failures and structural damage caused by excessive height differences. Summary of the Invention

[0006] The main purpose of this utility model is to provide a sealed lifting control box, provide a multi-pole monitoring interface, and solve the problem of waterproofing the whole machine.

[0007] The main purpose of this utility model is to provide a sealed lifting control box, which provides multiple control interfaces for each lifting rod, so that each lifting rod responds separately within a reasonable control time difference and ultimately reaches the same height, and solves the problem of waterproofing the whole machine.

[0008] This utility model achieves the above-mentioned objectives through the following technical solution: providing a sealed lifting control box, including a main box, a back cover, control buttons, and a connector; The main box is a concave box with an open side on its back; the back cover is provided with a convex pressing platform; specifically, the convex pressing platform and the opening side edge of the main box have the same dimensions, that is, the outer diameter and inner diameter of both are aligned, and a corresponding threaded through hole is provided, so that the back cover can be nailed to the opening side of the main box by passing a screw through the threaded through hole to form a closed body of the sealed lifting control box. The back cover is also provided with a hanging edge around its perimeter, and a mounting hole is provided on the hanging edge, so that the back cover can be installed on the workbench by passing screws through the mounting hole. The control buttons are located on the front of the main box, providing a control interface for the user; The main box is equipped with a control motherboard that parses and forwards the user's control actions on the control buttons; The control motherboard is equipped with a connector that passes through the back cover and can then be connected to a third-party device via a signal line to exchange control information. Specifically, the control motherboard collects the status parameters of the third-party device through the connector and outputs the control commands of the sealed lifting control box to the third-party device.

[0009] Furthermore, the sealed lifting control box also includes a sealing gasket and a sealing ring; The sealing gasket is disposed between the contact surfaces of the main box and the back cover. The size of the sealing gasket is adapted to the size of the convex pressure table, which can prevent water mist from seeping into the interior of the sealed lifting control box from the gaps. The back cover is provided with multiple data through holes to facilitate the connection head to pass through, and the sealing ring is fitted into the gap between the connection head and the data through holes to achieve a seal and waterproofing.

[0010] Furthermore, a through hole is provided on the lower front side of the main box; The control board is equipped with input buttons; The head end of the control button is snapped into the through hole, and the tail end abuts against the input button on the control motherboard; when the user clicks the control button, the control button presses the input button on the control motherboard to generate a control command.

[0011] Furthermore, a display window is provided on the upper front side of the main box, and a display screen is soldered onto the control motherboard; specifically, the display screen is an LED display screen or a touch screen, used to display current control information or operation / alarm information fed back by the lifting rod. The display screen faces the display window and is flush with the display window, making it easy for the user to observe the content of the display screen, and the edges are sealed with glue to prevent water leakage and vibration.

[0012] Furthermore, the front of the main box is covered with a silicone film, and a display hole adapted to the display window is opened in the silicone film. The display hole is covered with a dark glass cover with glue, so that the user can see the display screen through the glass cover. The dark glass cover and the silicone film form a complete plane, which is flat and waterproof. Dark mainly refers to dark black. The dark glass cover shields and protects the display screen. When the display screen is off and not in use, the color of the dark glass cover matches the silicone film, forming a unified appearance. When the display screen is on and in use, the light from the display screen can pass through the dark glass cover to show the display screen, thus ensuring that the user can see the display screen's content.

[0013] Furthermore, the input buttons on the control motherboard are self-recovering cylindrical buttons; The silicone film has a button surface corresponding to the through hole. Text can be printed on the button surface. The outer side of the control button abuts against and sticks to the inner side of the button surface. Sticking ensures that the lateral position of the control button remains unchanged. The inner side of the control button presses against the top of the cylindrical button without pressure. When the user presses the button surface, the button surface squeezes the control button downwards, and the control button squeezes the cylindrical button downwards, thereby transmitting the pressing action to the control motherboard.

[0014] Furthermore, the size of the button surface is adapted to the through hole, and a connecting groove is provided between the button surfaces to facilitate the isolation of adjacent button surfaces; the silicone material of the connecting groove is thinner than the board material of the button surface, which reduces the resistance to downward pressing and weakens the linkage between adjacent button surfaces, preventing the adjacent button surfaces from moving downward laterally and causing accidental pressing when a single button surface is pressed down.

[0015] Furthermore, a line protrusion is provided in the middle of the connecting groove. Different sizes of the line protrusions result in different support and reinforcement capabilities for the connecting groove. Specifically, the longer, wider, and higher the line protrusion, the stronger its support capability for the connecting groove, while also providing a stronger tactile feel for the user and making it easier to distinguish adjacent button surfaces.

[0016] Furthermore, the control buttons include six buttons, named "One-click Raise", "One-click Lower", "Raise to Middle Position", "Pause Raising and Lowering", "Manual Raise", and "Manual Lower", respectively. The control buttons are equipped with corresponding text or simple diagrams to facilitate quick identification by the user.

[0017] Furthermore, the main box is made of a rigid material, such as aluminum alloy, 306 steel, or rigid plastic.

[0018] The above-mentioned solutions adopted in this utility model have the following beneficial effects.

[0019] (1) A tightly sealed lifting control box is provided, which is easy to install and debug. It provides multiple connection ports to connect multiple lifting rods. It can send commands through the control buttons and observe the control results through the display screen.

[0020] (2) Use sealing gaskets, sealing rings and silicone membranes to enhance the overall sealing performance and achieve overall waterproof and moisture-proof performance.

[0021] (3) By simply setting different lengths and widths of control buttons, the input action of the button surface can be transmitted to the input buttons of different depths on the control motherboard. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 A front-view perspective view of the sealed lifting control box in the embodiment.

[0024] Figure 2 Rear-view perspective view of the sealed lifting control box in the embodiment.

[0025] Figure 3 A front-view perspective of the sealed lifting control box in the exploded mode in the embodiment.

[0026] Figure 4 Rear-view perspective of the sealed lifting control box in explosion mode in the embodiment.

[0027] Figure 5 The rear-view stereoscopic view corresponding to the main box isolation mode in the embodiment.

[0028] Figure 6 The front-view stereoscopic view corresponding to the isolated back cover mode in the embodiment.

[0029] Figure 7 A three-dimensional schematic diagram of the control lifting rod after the sealed lifting control box is fixed in the embodiment.

[0030] In the diagram: 1-Main box; 2-Back cover; 3-Control main board; 4-Silicone membrane; 5-Sealing gasket; 6-Sealed lifting control box; 7-Lifting rod; 8-Worktable; 9-Sealing ring; 10-Threaded through hole; 101-Control button; 102-Through hole; 103-Display window; 201-Convex pressure table; 202-Hanging edge; 203-Hanging hole; 204-Data through hole; 301-Connector; 302-Input button; 303-Display screen; 401-Display hole; 402-Glass cover; 403-Button surface; 404-Connecting groove; 405-Line protrusion; 601-One-button lift; 602-One-button lower; 603-Lift to middle position; 604-Pause lifting; 605-Manual lift; 606-Manual lower. Detailed Implementation

[0031] Example: Figure 1-7 As shown, in this embodiment, a sealed lifting control box is provided, including a main box 1, a back cover 2, a control button 101, and a connector 301; The main box 1 is a concave box with its back side set as the open side; the back cover 2 is provided with a convex pressing platform 201 with a height of 2mm; specifically, the convex pressing platform 201 and the opening side edge of the main box 1 have the same dimensions, that is, the outer diameter and inner diameter of the two are aligned, with a length of 15cm, a width of 6cm, and a thickness of 2.5mm, and are provided with a corresponding threaded through hole 10 with a diameter of 1.5mm, so that the back cover 2 can be nailed to the opening side of the main box 1 by passing a screw through the threaded through hole 10, forming the closed body of the sealed lifting control box 6; The back cover 2 is also provided with a hanging edge 202 around its perimeter, which is 10mm wide. The hanging edge 202 is provided with a mounting hole 203 with a diameter of 6mm. The back cover 2 can be installed onto the workbench 8 by passing screws through the mounting hole 203. The control button 101 is located on the front of the main box 1, providing a control interface for the user; During implementation, the entire sealed lifting control box 6 is fixed on the workbench 8 with the help of the back cover 2, and the front of the main box 1 faces the side that is convenient for the user to operate. The main box 1 is equipped with a control motherboard 3, which can process monitoring data and send control commands, including parsing and forwarding the user's control actions on the control button 101; specifically, the support part of the control motherboard 3 is fixed to the inside of the back cover 2 by screws, and the input end of the control motherboard 3 is attached to the control button 101 on the front of the main box 1. The control motherboard 3 is equipped with a connector 301, which can lead out four control wires and one power wire, enabling both communication and power supply. The connector 301 passes through the back cover 2, connects to the control board of the lifting rod 7 via signal lines to exchange control information, and introduces power via the power line. Specifically, the control motherboard 3 collects the status parameters of the lifting rod 7 via the connector 301 and forwards the control commands from the sealed lifting control box 6 to the lifting rod 7. The control motherboard 3 is an embedded control board with an MPU as its main body, which can drive LED screens and DC motors, and supports serial port debugging. It is an STM32H743, a high-performance Cortex-M7 core with a main frequency of ≥400MHz, supports multiple peripheral interfaces such as SPI / I2C / UART / PWM, and has built-in hardware acceleration such as DMA, making it suitable for real-time control.

[0032] The control motherboard 3 sends control commands to each lifting rod 7, and each lifting rod 7 responds and operates accordingly. Due to the inherent differences in the mechanical response of each lifting rod 7, reasonable control time differences and operating height differences are allowed. After all lifting rods 7 have reached the target position, they will naturally reach the same height.

[0033] In this embodiment, the sealed lifting control box 6 also includes a sealing gasket 5 and a sealing ring 9; The sealing gasket 5 is disposed between the contact surfaces of the main box 1 and the back cover 2. The size of the sealing gasket 5 is adapted to the size of the convex pressure table 201. The thickness of the sealing gasket 5 is 1mm, which can prevent water mist from seeping into the interior of the sealing lifting control box 6 from the gaps. The back cover 2 is provided with multiple data through holes 204 to facilitate the connection head 301 to pass through. The sealing ring 9 is fitted into the gap between the connection head 301 and the data through holes 204 to achieve sealing and waterproofing. During implementation, the nut of connector 301 is tightly pressed against the sealing ring 9; additionally, sealant can be applied to the gap between connector 301 and data through hole 204 for waterproofing.

[0034] In this embodiment, the main box 1 has six through holes 102 on the lower front side; the control board 3 has six input buttons 302; the head of the control button 101 is snapped into the through hole 102, and the tail end abuts against the input button 302 of the control board 3; when the user clicks the control button 101, the control button 101 presses the input button 302 of the control board 3 to form a control command.

[0035] In this embodiment, a display window 103 is provided on the upper side of the front of the main box 1, and a display screen 303 is soldered on the control main board 3. Specifically, the display screen 303 is an LED screen used to display current control information or operation / alarm information fed back by the lifting lever 7. The display screen 303 faces the display window 103 and is flush with the display window 103, so that the user can easily observe the content of the display screen 303. The gap between the display screen 303 and the display window 103 is sealed with glue to prevent water leakage and vibration.

[0036] In this embodiment, the front of the main box 1 is covered with a 2mm thick silicone film 4. The silicone film 4 has a display hole 401 that matches the display window 103. The display hole 401 is covered with a dark glass cover 402 with glue, so that the user can see the display screen 303 through the glass cover 402. The dark glass cover 402 and the silicone film 4 form a complete plane, which is flat and waterproof. The dark color mainly refers to dark black. The dark glass cover 402 shields and protects the display screen 303. When the display screen 303 is off and not working, the color of the dark glass cover 402 is the same as that of the silicone film 4, and the appearance is integrated. When the display screen 303 is on and working, the light of the display screen 303 can be displayed outward through the dark glass cover 402, thereby ensuring that the user can see the working content of the display screen 303.

[0037] In this embodiment, the input button 302 of the control motherboard 3 is a cylindrical button that can spring back to its original position. The silicone film 4 is provided with a button surface 403 corresponding to the through hole 102. Text can be printed on the button surface 403. The outer side of the control button 101 abuts against and sticks to the inner side of the button surface 403. The sticking ensures that the lateral position of the control button 101 remains unchanged. The inner side of the control button 101 presses against the top of the cylindrical button without pressure. When the user presses the button surface 403, the button surface 403 squeezes the control button 101 downward, and the control button 101 squeezes the cylindrical button downward, thereby transmitting the pressing action to the control motherboard 3.

[0038] In this embodiment, the size of the button surface 403 is adapted to the through hole 102, and a connecting groove 404 is provided between the button surfaces 403 to facilitate the isolation of adjacent button surfaces 403; the silicone material of the connecting groove 404 is thinner than the board material of the button surface 403, which reduces the resistance to downward pressing and weakens the linkage between adjacent button surfaces 403, preventing the lateral movement of adjacent button surfaces 403 when a single button surface 403 is pressed down, thus preventing accidental pressing.

[0039] In this embodiment, a line boss 405 is provided in the middle of the connecting groove 404. The line boss 405 has different sizes, which result in different support and reinforcement capabilities for the connecting groove 404. In this embodiment, the connecting groove 404 is 12mm long, 2mm wide, and 1mm thick, and the line boss 405 is 6mm long, 1mm wide, and 2.2mm thick.

[0040] In this embodiment, the control buttons 101 include six buttons, which are named "One-click Raise 601", "One-click Lower 602", "Raise to Middle Position 603", "Pause Raising and Lowering 604", "Manual Raise 605" and "Manual Lower 606". The corresponding text or simple diagrams on the control buttons 101 are convenient for users to quickly identify.

[0041] In this embodiment, the lifting lever 7 can respond to user control commands individually based on its current state, including "one-click raise 601", "one-click lower 602", "raise to middle position 603", "pause lifting 604", "manual raise 605", "manual lower 606" or "initial to lowest value command". The control information for each step is displayed in real time on the display screen 303.

[0042] The logic for the response actions of each control button 101 is as follows; When the user presses "One-click lift 601" once, the sealed lifting control box 6 periodically issues a lifting command, and the lifting rod 7 responds to the lifting command and rises at a first specified speed until the user clicks any control button 101, or until the lifting rod 7 rises from its current position to its highest position; wherein the first specified speed is 10mm / s; When the user presses "One-click lower 602" once, the sealed lifting control box 6 periodically issues a lowering command, and the lifting rod 7 responds to the lowering command and lowers at a second specified speed until the user clicks any control button 101, or until the lifting rod 7 lowers from its current position to its lowest position; wherein the second specified speed is 10mm / s; When the user continuously presses or taps "Manually Raise 605", the sealed lifting control box 6 sends a corresponding number of pulse lifting commands based on the duration of the user's press or the number of taps. The lifting rod 7 responds to the lifting command and rises at a third specified speed until the user stops pressing and stops sending lifting commands, or until the lifting rod 7 rises to the highest position and then stops responding to lifting commands; the third specified speed is 8mm / s. When the user continuously presses or taps "Manually Lower 606", the sealed lifting control box 6 sends a corresponding number of pulse lowering commands based on the duration of the user's press or the number of taps. The lifting rod 7 responds to the lowering command and descends at the fourth specified speed until the user stops pressing and stops sending lowering commands, or until the lifting rod 7 is lowered to the lowest position and then stops responding to lowering commands; where the fourth specified speed is 8mm / s. When the lifting rod 7 is rising or falling, if the user clicks "Pause Lifting 604", the ceiling will be temporarily fixed at the current position. Then, if the user clicks "Rise to Middle Position 603" within 5 seconds, the current height will be defined as the middle height H1. After the middle height is set, when the user presses "Rise to Middle Position 603" once, the lifting rod 7 will respond in two ways: Case 1: If the current ceiling height is less than the intermediate height H1, the ceiling will rise at the first specified speed until the user clicks any control button 101, or until the lifting rod 7 rises from the current position to the intermediate height H1. Case 2: If the current ceiling height is greater than the intermediate height H1, the ceiling will descend at the second specified speed until the user clicks any control button 101, or until the lifting rod 7 descends from the current position to the intermediate height H1; Generally speaking, the canopy supported by the lifting pole 7 has different height requirements for different weather conditions and times of day. For example, when it is raining or there is strong sunlight, the lifting pole 7 can be raised to a suitable intermediate height (e.g., H1 is 60% of the total height) using the "Raise to Middle Position 603" button, which allows the canopy to block rain and strong sunlight to the greatest extent while maintaining reasonable open space. When the weather is sunny or cloudy with low light, the lifting pole 7 can be raised to the maximum height (100% of the total height) using the "One-Click Raise 601" button, which allows the canopy to provide the maximum space for tourists. When night falls, the lifting pole 7 can be lowered to the minimum height (0% of the total height) using the "One-Click Lower 602" button, which allows the canopy to cover the cabin to the greatest extent and prevent mosquitoes and rain from entering. When "Manually Raise 605" and "Manually Lower 606" are pressed simultaneously and held for 5 seconds, an "Initial to Lowest Value" command is generated. All lifting levers 7 respond to the initialization command and lower at the fifth specified speed until all lifting levers 7 are lowered from their current position to the lowest position, thus achieving initialization. When "Manually Raise 605" and "Manually Lower 606" are pressed simultaneously and held for 5 seconds, an "Initial to Lowest Value" command is generated. All lifting levers 7 respond to the initialization command and lower at the fifth specified speed until all lifting levers 7 are lowered from their current positions to the lowest positions, thus achieving initialization to the lowest position.

[0043] The fifth specified speed is 4mm / s. The initial to minimum value command is mostly used for abnormal alarms caused by overall unevenness or abnormal resistance of some lifting rods 7. When the initial to minimum value command is executed, the entire ceiling moves slowly. At the same time, the operator should carefully observe to prevent it from getting stuck in some areas.

[0044] In this embodiment, the main box 1 is made of a rigid material, such as aluminum alloy, 306 steel, or rigid plastic.

[0045] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A sealed lifting control box, characterized in that, Includes main box (1), back cover (2), control button (101) and connector (301); The main box (1) is a concave box with its back side set as an open side; the back cover (2) is provided with a convex pressure plate (201); specifically, the convex pressure plate (201) and the opening side edge of the main box (1) have the same dimensions, and are provided with corresponding threaded through holes (10), so that screws can be used to pass through the threaded through holes (10) to nail the back cover (2) to the opening side of the main box (1) to form a closed body of the sealed lifting control box (6); The back cover (2) is also provided with a hanging edge (202) around its perimeter. The hanging edge (202) is provided with a mounting hole (203), and the back cover (2) can be installed on the workbench (8) by passing screws through the mounting hole (203). The control button (101) is located on the front of the main box (1) to provide a control interface for the user; The main box (1) is equipped with a control motherboard (3) that parses and forwards the user's control actions on the control button (101); The control motherboard (3) is provided with a connector (301), which passes through the back cover (2) and can then be connected to a third-party device and exchange control information via a signal line. Specifically, the control motherboard (3) collects the status parameters of the third-party device via the connector (301) and outputs the control commands of the sealed lifting control box (6) to the third-party device.

2. The sealed lifting control box according to claim 1, characterized in that: It also includes a sealing gasket (5) and a sealing ring (9); The sealing gasket (5) is placed between the contact surfaces of the main box (1) and the back cover (2). The size of the sealing gasket (5) is adapted to the size of the convex pressure table (201) to prevent water mist from seeping into the interior of the sealing lifting control box (6) from the gap. The back cover (2) is provided with multiple data through holes (204) to facilitate the connection head (301) to pass through. The sealing ring (9) is fitted into the gap between the connection head (301) and the data through holes (204) to achieve sealing and waterproofing.

3. The sealed lifting control box according to claim 2, characterized in that: The main box (1) has a through hole (102) on the lower side of the front. The control motherboard (3) is equipped with an input button (302); The head end of the control button (101) is snapped into the through hole (102), and the tail end abuts against the input button (302) of the control motherboard (3). When the user clicks the control button (101), the control button (101) presses the input button (302) of the control motherboard (3) to form a control command.

4. The sealed lifting control box according to claim 3, characterized in that: The main box (1) has a display window (103) on the upper front side, and a display screen (303) is soldered on the control motherboard (3). The display screen (303) faces the display window (103) so that the user can easily observe the content of the display screen (303).

5. A sealed lifting control box according to claim 4, characterized in that: The front of the main box (1) is covered with a silicone film (4), and a display hole (401) adapted to the display window (103) is opened on the silicone film (4). The display hole (401) is covered with a dark glass cover (402). The dark glass cover (402) shields and protects the display screen (303). When the display screen (303) is off and not working, the color of the dark glass cover (402) is consistent with the silicone film (4), and the appearance is integrated. When the display screen (303) is lit and working, the light of the display screen (303) can be displayed outward through the dark glass cover (402), thereby ensuring that the user can see the working content of the display screen (303).

6. The sealed lifting control box according to claim 5, characterized in that: The input button (302) of the control motherboard (3) is a self-recovering cylindrical button; The silicone film (4) is provided with a button surface (403) corresponding to the through hole (102). The outer side of the control button (101) abuts against and sticks to the inner side of the button surface (403). The inner side of the control button (101) abuts against the top of the cylindrical button without pressure. When the user presses the button surface (403), the button surface (403) squeezes the control button (101) downward, and the control button (101) squeezes the cylindrical button downward, thereby transmitting the pressing action to the control motherboard (3).

7. A sealed lifting control box according to claim 6, characterized in that: The size of the button surface (403) is adapted to the through hole (102). A connecting groove (404) is provided between the button surfaces (403) to facilitate the isolation of adjacent button surfaces (403). The silicone material of the connecting groove (404) is thinner than the board material of the button surface (403), which reduces the resistance to downward pressing and weakens the linkage between adjacent button surfaces (403), preventing the adjacent button surfaces (403) from moving downward laterally when a single button surface (403) is pressed down, thus causing accidental pressing.

8. The sealed lifting control box according to claim 7, characterized in that: A line boss (405) is provided in the middle of the connecting groove (404). The line boss (405) has different sizes, which have different support and reinforcement capabilities for the connecting groove (404). Specifically, the longer, wider and higher the line boss (405) is, the stronger its support capability for the connecting groove (404) is, and the stronger the tactile sensation for the user, making it easier to distinguish adjacent button surfaces (403).

9. A sealed lifting control box according to claim 8, characterized in that: The control buttons (101) include six buttons, named "One-click Raise (601)", "One-click Lower (602)", "Raise to Middle Position (603)", "Pause Raising and Lowering (604)", "Manual Raise (605)" and "Manual Lower (606)".

10. A sealed lifting control box according to claim 9, characterized in that: The main box (1) is made of rigid material.

Images