Electric wringer

Abstract

The utility model relates to the field of wringer, especially a kind of electric wringer, it include: bottom shell, is equipped with elastic member;Support, is equipped with driving element, support is connected with elastic member;Screw rod, is connected with driving element, the axis of screw rod is along the elastic force direction of elastic member and is arranged;Press bar, is coaxially screwed with screw rod, press bar is slidably connected with bottom shell;Detection switch, is connected with driving element, for when the distance between support and bottom shell is in the preset range, stop driving element.The electric wringer provided by the utility model is reasonably designed, on the one hand, it can avoid the problem of insufficient extrusion pressure caused by the miniaturization of equipment, on the other hand, combined with scientific extrusion mode, the extrusion component is not easy to damage, the extrusion effect on material is better, and the efficiency is higher, not only saves manpower and saves electric energy, but also the structure component is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of dewatering machines, and more particularly to an electric dewatering machine. Background Technology

[0002] Dehydrators are widely used in food preparation and other fields, serving functions such as squeezing, filtering, and filtration. Early dehydrating tools, such as the Chinese utility model patent application number CN201922242029.1 entitled "A Dehydration Device for Vegetable Fillings," relied on manual screws or manual spring clips, resulting in cumbersome operation, low efficiency, and poor dehydration. Later, to save labor and improve production efficiency, manufacturers improved and proposed automated dehydrating machines, as seen in the Chinese invention patent application publication number CN119590019A entitled "An Electric Dehydrator." Although this dehydrator is smaller than industrial dehydrating equipment, it still suffers from drawbacks such as being bulky, heavy, difficult to move, and costly for home, personal, or small commercial settings. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an electric water squeezer that improves squeezing capacity, avoids damage to components, and is easy to use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an electric dewatering machine, comprising:

[0005] The bottom shell is equipped with elastic elements;

[0006] The bracket is equipped with a driving element and is connected to an elastic element.

[0007] The screw is connected to the drive element, and the axis of the screw is set along the direction of the elastic force of the elastic element;

[0008] The pressure rod is coaxially screwed to the screw rod and is slidably connected to the bottom shell.

[0009] A detection switch, connected to the drive element, is used to stop the drive element when the distance between the bracket and the base is within a preset range.

[0010] Furthermore, the bottom shell is equipped with a safety switch, which is connected to the drive element. The safety switch is used to stop the drive element when it detects that the filter barrel has separated from the bottom shell.

[0011] Furthermore, the pressure rod includes a rod body and a nut. The rod body is coaxially arranged with the screw rod. One end of the rod body has a groove along the axis for the screw rod to extend into. The nut is fixedly arranged in the groove and screwed to the screw rod.

[0012] Furthermore, a screw hole is provided at the other end of the rod, and a pressure plate is screwed into the screw hole.

[0013] Furthermore, the bottom shell is provided with a guide rail for the pressure rod to slide, and the bottom shell is provided with a guide post that is slidably connected to the bracket.

[0014] Furthermore, the guide rail is equipped with a limit switch, which is connected to the drive element. The pressure rod is equipped with a boss for triggering the limit switch. When the boss triggers the limit switch, the drive element stops or reverses.

[0015] Furthermore, the elastic element is a spring, which is sleeved on the guide post.

[0016] Furthermore, it also includes a filter barrel, which is detachably connected to the bottom shell, with a pressure rod extending into the filter barrel.

[0017] Furthermore, the bracket is equipped with a trigger platform, which stops the driving element when it comes into contact with the detection switch.

[0018] Furthermore, the drive components include a motor and a gearbox, with the motor, gearbox, and screw connected in sequence.

[0019] The beneficial effects of this utility model are as follows: An electric dewatering machine allows the bottom shell to be held by hand or fixed in place, with the pressure rod pointing vertically downwards. The material to be squeezed is placed below the pressure rod, and the drive element is activated to rotate the screw. Since the screw and pressure rod are screwed together, and the pressure rod is slidably engaged with the bottom shell, the pressure rod will move vertically up and down, continuously squeezing the material. When the squeezing is too fast, the material cannot expel water in time, or the resistance of the material itself during squeezing is too great, the screw can no longer drive the pressure rod to continue moving downwards. Under the resistance, the pressure rod continues to press the material, causing the screw and even the entire support to move upwards. The distance between the support and the bottom shell continuously decreases, and the elastic element compresses and stores energy until the detection switch detects that the distance between the support and the bottom shell has reached a preset range. At this time, the drive element stops. The elastic force of the elastic element continues to act on the material through the pressure rod. For a period of time afterward, because the stored elastic pressure of the elastic element continues to act on the compressed material, the material is continuously squeezed and drained under strong pressure. As the material gradually expels some water, the resistance force gradually decreases. When the distance between the support and the bottom shell moves away from the preset range, the drive element restarts, driving the pressure rod to press down. This, combined with the elastic potential energy stored in the elastic element, performs a secondary compression of the material until resistance is encountered again. When the distance between the support and the bottom shell returns to the preset range, the drive element stops again. This cycle repeats continuously and scientifically compresses the material. The electric water squeezer provided by this invention is rationally designed. On the one hand, it avoids the problem of insufficient compression pressure caused by equipment miniaturization; on the other hand, the scientific compression method makes the compression components less prone to damage, resulting in better compression effect and higher efficiency. It not only saves manpower and energy but also makes the structural components easy to clean. It can meet the needs of yogurt filtration, vegetable and tofu extraction, fruit juice extraction, honey extraction, and traditional Chinese medicine filtration. Attached Figure Description

[0020] Figure 1 This is a front view of an electric dewatering machine;

[0021] Figure 2 This is a schematic diagram of the structure of an electric dewatering machine;

[0022] Figure 3 This is a partial sectional view of an electric dewatering machine;

[0023] Figure 4 This is another partial sectional view of the electric dewatering machine;

[0024] Figure 5 This is another structural schematic diagram of an electric dewatering machine;

[0025] Figure 6 This is another partial sectional view of the electric dewatering machine;

[0026] Figure 7This is another partial sectional view of the electric dewatering machine;

[0027] Figure 8 This is another partial sectional view of the electric dewatering machine;

[0028] Figure 9 This is another structural schematic diagram of an electric dewatering machine;

[0029] Figure 10 This is another structural schematic diagram of an electric dewatering machine;

[0030] Figure 11 This is another structural schematic diagram of an electric dewatering machine;

[0031] Figure 12 This is another structural schematic diagram of an electric dewatering machine;

[0032] Figure 13 This is another structural schematic diagram of an electric dewatering machine;

[0033] Label Explanation:

[0034] 1. Base shell; 11. Elastic element; 12. Guide rail; 121. Limit switch; 13. Guide post; 131. Screw head; 14. Safety switch; 15. Switch baffle; 16. Rotary slot; 161. Limit slot;

[0035] 2. Bracket; 21. Drive element; 211. Motor; 212. Gearbox; 213. End gear; 214. Limit shaft; 22. Trigger platform;

[0036] 3. Screw;

[0037] 4. Pressure rod; 41. Rod body; 411. Groove; 412. Screw hole; 42. Nut; 43. Pressure plate; 431. Anti-slip groove; 44. Movable rod; 45. Anti-rotation slider;

[0038] 5. Detection switch;

[0039] 6. Filter barrel; 61. Rotary buckle; 611. Limiting rib; 62. Switch rib; 63. Support plate; 631. Positioning boss;

[0040] 7. Water storage tank; 71. Support platform; 711. Positioning groove. Detailed Implementation

[0041] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0042] Please refer to Figures 1 to 13 As shown, the present invention provides an electric dewatering machine, comprising:

[0043] The bottom shell 1 is provided with an elastic element 11;

[0044] The bracket 2 is equipped with a driving element 21 and is connected to the elastic element 11;

[0045] Screw 3 is connected to drive element 21, and the axis of screw 3 is set along the elastic force direction of elastic element 11;

[0046] The pressure rod 4 is coaxially screwed to the screw rod 3, and the pressure rod 4 is slidably connected to the bottom shell 1;

[0047] The detection switch 5 is connected to the drive element 21 and is used to stop the drive element 21 when the distance between the bracket 2 and the bottom shell 1 is within a preset range.

[0048] As can be seen from the above description, the beneficial effects of this utility model are as follows: An electric dewatering machine, when in use, the bottom shell 1 can be held by hand or fixed in one place, with the pressure rod 4 vertically downwards. The material to be squeezed is placed below the pressure rod 4, and the drive element 21 is activated to drive the screw 3 to rotate. Since the screw 3 and the pressure rod 4 are screwed together, and the pressure rod 4 is also in sliding contact with the bottom shell 1, the pressure rod 4 will move vertically up and down in a straight line, continuously squeezing the material. When the squeezing is too fast, the material cannot expel the water in time, or the resistance of the material itself during squeezing is too large, the screw 3 can no longer drive the pressure rod. As rod 4 continues to move downwards, the resistance forces the pressure rod 4 to continuously press the material, causing the screw 3 and even the entire support 2 to move upwards. The distance between the support 2 and the bottom shell 1 continuously decreases, and the elastic element 11 compresses and stores energy until the detection switch 5 detects that the distance between the support 2 and the bottom shell 1 has reached the preset range. At this time, the drive element 21 stops. At this point, the elastic force of the elastic element 11 continues to act on the material through the pressure rod 4. For a period of time afterward, because the stored elastic pressure of the elastic element always acts on the compressed material, the material is continuously compressed and drained under strong pressure. When the material gradually drains some water again, the resistance force gradually decreases, and the distance between the support 2 and the bottom shell 1 leaves the preset range, the drive element 21 starts again, driving the pressure rod 4 to press down. Together with the elastic potential energy stored in the elastic element 11, the material is subjected to secondary compression until it is obstructed again. When the distance between the support 2 and the bottom shell 1 returns to the preset range again, the drive element 21 stops again. This cycle repeats continuously and scientifically compresses the material. The electric dewatering machine provided by this utility model is reasonably designed. On the one hand, it can avoid the problem of insufficient extrusion pressure caused by the miniaturization of the equipment. On the other hand, the scientific extrusion method makes the extrusion components less prone to damage, resulting in better extrusion effect and higher efficiency. It not only saves manpower and energy, but also makes the structural components easy to clean. It can meet the needs of yogurt filtration, vegetable and tofu dewatering, fruit juice, honey extrusion, and Chinese medicine filtration.

[0049] In an optional embodiment, the pressure rod 4 includes a rod body 41 and a nut 42. The rod body 41 is coaxially arranged with the screw rod 3. One end of the rod body 41 is provided with a groove 411 along the axis for the screw rod 3 to extend into. The nut 42 is fixedly arranged in the groove 411 and screwed to the screw rod 3.

[0050] As can be seen from the above description, during assembly, the screw 3 passes through the nut 42 and extends into the groove 411. When the screw 3 rotates, the rod 41 moves linearly. Since the screw 3 has a self-locking function, when the drive element 21 stops, the pressure rod 4 will not retract under a large reverse pressure, thus ensuring that the pressure will not decrease and playing a pressure-holding function.

[0051] In an optional embodiment, the other end of the rod 41 is provided with a screw hole 412, and a pressure plate 43 is screwed into the screw hole 412. The joint between the pressure rod 4 and the pressure plate 43 is made by threaded engagement, which allows for easy disassembly and replacement.

[0052] As can be seen from the above description, a pressure plate 43 is provided below the pressure rod 4, and the pressure plate 43 is used to press the material.

[0053] In an optional embodiment, the bottom shell 1 is provided with a guide rail 12 for sliding the pressure rod 4, and the bottom shell 1 is provided with a guide post 13 that is slidably connected to the bracket 2.

[0054] As can be seen from the above description, both the guide rail 12 and the guide post 13 serve to guide and limit movement, ensuring the stability of the pressure rod 4 and the bracket 2 during movement.

[0055] In an optional embodiment, the guide rail 12 is provided with a limit switch 121, which is connected to the drive element 21. The pressure rod 4 is provided with a boss for triggering the limit switch 121. When the boss triggers the limit switch 121, the drive element 21 stops or reverses.

[0056] As described above, to ensure that the pressure rod 4 moves up and down within a specified stroke, a limit switch 121 is installed in the upper and lower regions of the guide rail 12, respectively. The boss can reliably receive the pressure transmitted by the pressure rod 4, thus accurately transmitting it to the limit switches. When the pressure rod 4 reaches its lower limit stroke position, the boss touches the lower limit switch 121, and the drive element 21 stops driving the pressure rod 4 downward and instead rises upward. During the rise, when the boss touches the upper limit switch 121, the drive element 21 stops driving the pressure rod 4.

[0057] In an optional embodiment, the elastic element 11 is a spring, which is sleeved on the guide post 13.

[0058] As described above, this machine has a mechanical energy storage structure. When the material is squeezed, the spring contracts under the reaction force to store energy. The elastic element 11 can be a spring or other components with elastic potential energy (such as an elastic rubber pad). After the food has released a certain amount of moisture, even if the drive element 21 is not operating, the pressure plate 43 can still continuously provide pressure on the food under the action of the energy storage spring, thus allowing the food to be continuously squeezed to drain water. This mechanical energy storage structure not only protects the drive element 21, preventing it from working continuously and extending its lifespan, but also saves energy. For example, when using batteries, it greatly increases battery usage time and battery life.

[0059] In an optional embodiment, a filter barrel 6 is also included, which is detachably connected to the bottom shell 1, and the pressure rod 4 extends into the filter barrel 6.

[0060] As can be seen from the above description, food or items can be placed directly inside the filter bucket 6. If necessary, food or items can also be placed in a soft filter bag, the opening of the filter bag can be tied and then placed inside the filter bucket 6. After the pressure plate 43 squeezes the food inside the filter bucket 6, the water in the food is squeezed out and discharged through the filter holes of the filter bucket 6.

[0061] In an optional embodiment, the bottom shell 1 is provided with a safety switch 14, which is connected to the drive element 21. The safety switch 14 is used to stop the drive element 21 when it detects that the filter barrel 6 is separated from the bottom shell 1.

[0062] As described above, the electric wringer of this utility model has two actions: pressing down and lifting up for retraction. To prevent the user from accidentally placing their hand between the pressure plate 43 or other components on the pressure rod 4 and the bottom shell 1 during the retraction of the pressure rod 4, a safety switch 14 is installed on the bottom shell 1. The filter tank 6 triggers the safety switch 14 after the main unit is correctly installed in place, allowing the machine to operate normally. When the safety switch 14 detects that the filter tank 6 has separated from the bottom shell 1, it stops the drive element 21 to ensure personal safety.

[0063] In an optional embodiment, the bracket 2 is provided with a trigger platform 22, which stops the drive element 21 when the trigger platform 22 comes into contact with the detection switch 5.

[0064] As described above, to protect the machine from damage when squeezing food or other items inside the filter bucket 6, a trigger platform 22 is installed on the support 2. When the trigger platform 22 triggers the detection switch 5, the drive element 21 stops working, thus maintaining pressure on the material inside the filter bucket 6. Afterward, as the moisture in the material is drained, the trigger platform 22 and the detection switch 5 no longer contact each other, and the drive element 21 resumes operation. This process repeats continuously, transmitting pressure to the pressure plate 43 through the drive element 21 and the elastic element 11 without damaging the drive element 21 or the machine.

[0065] In an optional embodiment, the drive element 21 includes a motor 211 and a gearbox 212, and the motor 211, the gearbox 212 and the screw 3 are connected in sequence.

[0066] As can be seen from the above description, the motor 211 provides kinetic energy, and the motor 211 drives the screw 3 to rotate through the reduction gearbox 212. The screw 3 converts the rotational motion into the linear motion of the pressure rod 4 by the screw connection structure.

[0067] Please refer to Figures 1 to 13 As shown, Embodiment 1 of this utility model is: an electric dewatering machine, comprising:

[0068] The bottom shell 1 is provided with an elastic element 11;

[0069] The bracket 2 is equipped with a driving element 21 and is connected to the elastic element 11;

[0070] Screw 3 is connected to drive element 21, and the axis of screw 3 is set along the elastic force direction of elastic element 11;

[0071] The pressure rod 4 is coaxially screwed to the screw rod 3, and the pressure rod 4 is slidably connected to the bottom shell 1;

[0072] The detection switch 5 is connected to the drive element 21 and is used to stop the drive element 21 when the distance between the bracket 2 and the bottom shell 1 is within a preset range.

[0073] The pressure rod 4 includes a rod body 41 and a nut 42. The rod body 41 is coaxially arranged with the screw 3. One end of the rod body 41 has a groove 411 along the axis for the screw 3 to extend into. The nut 42 is fixedly arranged in the groove 411 and screwed to the screw 3. The other end of the rod body 41 has a screw hole 412, and a pressure plate 43 is screwed into the screw hole 412. The pressing surface of the pressure plate 43 has an anti-slip groove 431. The bottom shell 1 has a guide rail 12 for the pressure rod 4 to slide. The pressure rod 4 has an anti-rotation slider 45 that slides with the guide rail 12. The bottom shell 1 has a guide post 13 that slides with the bracket 2. The guide rail 12 has a limit switch 121, which is connected to the drive element 21. The pressure rod 4 has a movable rod 44, which has a boss for triggering the limit switch 121. When the boss triggers the limit switch 121, the drive element 21 stops or reverses. The elastic element 11 is a spring, which is sleeved on the guide post 13. One end of the spring is supported on the screw head 131 of the guide post 13, and the other end of the spring is supported on the bracket 2. It also includes a filter barrel 6, which is detachably connected to the bottom shell 1 via a rotating buckle 61. The bottom shell 1 has a corresponding rotating groove 16, and the pressure plate 43 extends into the filter barrel 6. The bottom and sides of the filter barrel 6 have filter holes. To further prevent loosening after assembly, a limiting rib 611 is provided below the rotating buckle 61, and a corresponding limiting groove 161 is provided in the rotating groove 16. After the bottom shell 1 and the filter barrel 6 are screwed into place, the limiting rib 611 and the limiting groove 161 interlock under force to prevent loosening and detachment. The bottom shell 1 has a safety switch 14, which is connected to the drive element 21. The safety switch 14 is used to stop the drive element 21 when it detects that the filter barrel 6 is separated from the bottom shell 1. The drive element 21 includes a motor 211 and a gearbox 212, which are connected in sequence to the screw 3. The end gear 213 of the gearbox 212 drives the screw 3 to rotate via a limiting shaft 214.

[0074] The working principle of this embodiment is as follows: During operation, food or items that need to be squeezed and filtered for moisture are placed inside the filter bucket 6, which is mounted on a step at the inner opening of the water storage tank 7. When the pressure plate 43 moves downward, it presses down on the food or items inside the filter bucket 6, causing their moisture to drain through the holes in the filter bucket 6 into the water storage tank 7 below. The operation mode of the motor 211, controlled by the circuit board, controls the pressure plate 43 to squeeze downward in a regular manner, thereby achieving the function of squeezing and filtering water.

[0075] During machine operation, the system is primarily controlled electronically, employing a unique time-segmented control mechanism for motor 211. At regular intervals, motor 211 operates for short periods, working in conjunction with the energy storage spring. This intermittent operation of motor 211 causes the pressure plate 43 to press down intermittently, ensuring timely, effective, and smooth drainage of moisture from food or other items. Simultaneously, different operating durations can be set via a program and a safety switch to achieve varying dehydration effects (e.g., wet, semi-dry, dry). This time-segmented operation of motor 211 also extends its lifespan and increases battery life (if battery powered).

[0076] Different speed settings can be set according to functional needs. Users only need to execute the corresponding speed setting, and the machine can complete the process automatically without the need to stand by the machine to operate or wait frequently.

[0077] Through experiments comparing existing dehydration equipment, under the same conditions, such as squeezing out the same amount of water from yogurt (e.g., squeezing out 70% water from yogurt), existing dehydration equipment takes at least 8 to 48 hours, while the present invention can complete the task in as little as ten minutes.

[0078] Please refer to Figures 1 to 13 As shown, in the second embodiment of this utility model, the bracket 2 is provided with a trigger platform 22, which stops the driving element 21 when the trigger platform 22 comes into contact with the detection switch 5.

[0079] Please refer to Figures 1 to 13 As shown, in Embodiment 3 of this utility model, four switch ribs 62 are provided on the filter barrel 6. When the filter barrel 6 and the bottom shell 1 are assembled in place, the switch ribs 62 trigger the safety switch 14, and the machine can operate normally. A switch baffle 15 is provided on one side of the trigger rod of the safety switch 14. The switch baffle 15 can effectively prevent fingers or other objects from accidentally touching the safety switch 14, thereby ensuring the safe and effective use of the machine.

[0080] Please refer to Figures 1 to 13 As shown, the fourth embodiment of this utility model includes a water storage tank 7, which has a chamber for accommodating the filter tank 6. The inner wall of the water storage tank 7 is provided with two or more support platforms 71 along the circumferential direction. The top surface of the support platform 71 has a positioning groove 711. The outer wall of the filter tank 6 is provided with two or more support plates 63 along the circumferential direction. The support plates 63 are supported one-to-one on the support platform 71. The bottom surface of the support plate 63 is provided with a positioning boss 631 that cooperates with the positioning groove 711.

[0081] When storing the machine, the support plate 63 of the filter bucket 6 avoids the support platform 71 of the water storage tank 7, and the filter bucket 6 is placed inside the water storage tank 7. The bottom shell 1 is placed on top of the filter bucket 6, which effectively saves storage space.

[0082] In use, lift the filter bucket 6 from the water storage tank 7 and rotate it at a certain angle so that the support plate 63 aligns with the support platform 71. At this time, the positioning boss 631 engages with the positioning groove 711, thus preventing the filter bucket 6 from rotating or sliding freely on the water storage tank 7. It also acts as an anti-rotation and positioning mechanism when the bottom shell 1 is screwed onto the filter bucket 6, improving the stability of the machine during water extraction. The water squeezed out by the filter bucket 6 falls into the lower water storage tank 7, and is then discarded after use.

[0083] Please refer to Figures 1 to 13 As shown, Embodiment 5 of this utility model further includes a stainless steel filter cartridge. The stainless steel filter cartridge is placed inside the filter cartridge 6. By replacing the pressure plate 43 of the corresponding size, the different needs of different customers can be met.

[0084] In summary, the electric dewatering machine of this utility model can be used by hand or fixed in one place, with the pressure rod facing vertically downwards. The material to be squeezed is placed under the pressure rod, and the drive element is activated to drive the screw to rotate. Since the screw and the pressure rod are screwed together, and the pressure rod is slidably engaged with the bottom shell, the pressure rod will move vertically up and down in a straight line, continuously squeezing the material. When the squeezing is too fast, the material cannot drain the water in time, or the resistance of the material itself during squeezing is too large, the screw can no longer drive the pressure rod to continue moving downwards. Under the resistance, the pressure rod keeps pressing the material, causing the screw and even the entire support to move upwards. The distance between the support and the bottom shell continuously decreases, and the elastic element is compressed and stores energy until the detection switch detects that the distance between the support and the bottom shell has reached the preset range. At this time, the drive element stops. At this time, the elastic force of the elastic element continues to act on the material through the pressure rod. For a period of time thereafter, because the stored elastic pressure of the elastic element always acts on the compressed material, the material is continuously squeezed and drained under strong pressure. As the material gradually expels some water, the resistance force gradually decreases. When the distance between the support and the bottom shell moves away from the preset range, the drive element restarts, driving the pressure rod to press down. This, combined with the elastic potential energy stored in the elastic element, performs a secondary compression of the material until resistance is encountered again. When the distance between the support and the bottom shell returns to the preset range, the drive element stops again. This cycle repeats continuously and scientifically compresses the material. The electric water squeezer provided by this invention is rationally designed. On the one hand, it avoids the problem of insufficient compression pressure caused by equipment miniaturization; on the other hand, the scientific compression method makes the compression components less prone to damage, resulting in better compression effect and higher efficiency. It not only saves manpower and energy but also makes the structural components easy to clean. It can meet the needs of yogurt filtration, vegetable and tofu extraction, fruit juice extraction, honey extraction, and traditional Chinese medicine filtration.

[0085] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric dewatering machine, characterized in that, include: The bottom shell is equipped with elastic elements; The bracket is equipped with a driving element and is connected to an elastic element. The screw is connected to the drive element, and the axis of the screw is set along the direction of the elastic force of the elastic element; The pressure rod is coaxially screwed to the screw rod and is slidably connected to the bottom shell. A detection switch, connected to the drive element, is used to stop the drive element when the distance between the bracket and the base is within a preset range.

2. The electric dewatering machine according to claim 1, characterized in that, The bracket is equipped with a trigger platform, which stops the driving element when it comes into contact with the detection switch.

3. The electric dewatering machine according to claim 1, characterized in that, The pressure rod includes a rod body and a nut. The rod body is coaxially arranged with the screw rod. One end of the rod body has a groove along the axis for the screw rod to extend into. The nut is fixedly arranged in the groove and screwed to the screw rod.

4. The electric dewatering machine according to claim 3, characterized in that, The other end of the rod is provided with a screw hole, and a pressure plate is screwed into the screw hole.

5. The electric dewatering machine according to claim 1, characterized in that, The bottom shell is equipped with a guide rail for sliding the pressure rod, and the bottom shell is equipped with a guide post that is slidably connected to the bracket.

6. The electric dewatering machine according to claim 5, characterized in that, The guide rail is equipped with a limit switch, which is connected to the drive element. The pressure rod is equipped with a boss for triggering the limit switch. When the boss triggers the limit switch, the drive element stops or reverses.

7. The electric dewatering machine according to claim 5, characterized in that, The elastic element is a spring, which is sleeved on the guide post.

8. The electric dewatering machine according to claim 1, characterized in that, It also includes a filter barrel, which is detachably connected to the bottom shell, with a pressure rod extending into the filter barrel.

9. The electric dewatering machine according to claim 8, characterized in that, The bottom shell is equipped with a safety switch, which is connected to the drive element. The safety switch is used to stop the drive element when it detects that the filter barrel has separated from the bottom shell.

10. The electric dewatering machine according to claim 1, characterized in that, The drive components include a motor and a gearbox, which are connected in sequence with the screw.

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