Elevator car drainage device and method of draining

Abstract

This invention discloses an elevator car drainage device and method. A water trough is provided in the floor of the elevator car, and a water collection device connected to the trough is located at the bottom of the elevator car. A drain outlet and a switch bracket for draining water from the water collection device are provided in the elevator shaft pit. The elevator car automatically drains water when it reaches the bottom floor. This invention has a simple structure and low cost. The car floor is designed with a certain slope to effectively and automatically collect water from the car floor. The design of the float switch, switch bracket, switch valve, and switch linkage enables rapid, intelligent, and automatic drainage without hindering elevator operation, eliminating the need for additional waterproofing measures for the elevator and surrounding equipment.

Description

Technical Field

[0001] This invention relates to the field of elevator drainage technology, and more particularly to elevator car drainage technology. Background Technology

[0002] Water trucks are essential for transporting seafood, resulting in significant water spillage. When using elevators in seafood markets, this spilled water flows into the elevator car floor or pit, causing electrical switches to malfunction and the steel to rust, easily leading to elevator breakdowns and shutdowns. Current technology typically replaces all switches with waterproof ones; however, this solution is costly and does not prevent steel rusting. Therefore, there is an urgent need to develop new technologies that can collect and drain accumulated water from the elevator, reducing costs and minimizing malfunctions. Summary of the Invention

[0003] The purpose of this invention is to provide an elevator car drainage device and drainage method to solve the problems of high cost and unsatisfactory waterproofing effect of existing elevator waterproofing measures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An elevator car drainage device is provided, wherein a water tank is provided in the floor of the elevator car, a water collection device connected to the water tank is provided at the bottom of the elevator car, and a drain outlet and a switch bracket for draining water from the water collection device are provided in the pit of the elevator shaft.

[0006] Furthermore, the ground is inclined, and the water tank is located at the lowest point of the inclination.

[0007] Furthermore, the water collection device includes a drainage trough, a hose, a water tank, a switch valve, and a drain pipe. The drainage trough is installed at the outlet of the water tank, the upper end of the hose is connected to the drainage trough, the lower end of the hose is connected to the water tank, the drain pipe is installed at the bottom of the water tank, and the switch valve is installed on the drain pipe.

[0008] When the elevator car is located on the ground floor, the drain end of the drain pipe matches the drain outlet.

[0009] Furthermore, the water collection device also includes a housing installed at the bottom of the water tank and surrounding the outside of the switch valve, and a switch linkage and a limiting assembly installed on the housing. The housing has a notch on one side corresponding to the switch bracket.

[0010] Furthermore, the switch valve is a push-button type switch valve, with the push-button head facing the notch.

[0011] Furthermore, the lower end of the switch linkage is rotatably mounted inside the housing, the upper end of the switch linkage extends towards the switch bracket and is provided with a roller, the middle part of the switch linkage has a protrusion corresponding to the pressing head of the press switch valve, the switch linkage is located on the side of the switch valve near the notch, the limiting component is located on the side of the switch linkage near the notch, and the installation position of the limiting component is not higher than the roller and not lower than the lower end of the switch linkage.

[0012] When the elevator car is at the bottom, the roller rests on the switch bracket and the switch linkage rotates toward the switch valve, the protrusion presses the pressing head, and the switch valve is opened to drain water; when the elevator car moves upward, the roller 38 leaves the switch bracket, the upper end of the switch linkage rotates toward the limit component, and the limit component limits the tilting range of the switch linkage.

[0013] Furthermore, the switch bracket includes a vertical part and an inclined part located at the top of the vertical part, the inclined part being inclined downward from the pit wall toward the switch valve.

[0014] Furthermore, the floor is a patterned stainless steel floor;

[0015] The surface of the water tank is equipped with a stainless steel screen.

[0016] Furthermore, the upper part of the water tank is provided with a detachable filter screen, which is a drawer-type detachable installation inside the water tank, and a float switch is provided at the highest water level of the water tank.

[0017] This invention provides a drainage method for the elevator car drainage device, the process comprising:

[0018] (1) Because the floor of the elevator car is tilted, water will flow into the water tank and then into the water tank at the bottom of the car. The float switch monitors whether the water tank is full. If the water tank is not full, the elevator will run normally.

[0019] If the water tank is full and the elevator is moving upwards, it will continue to respond to the upward call commands and move down to the bottom floor.

[0020] If the water tank is full and the elevator is moving downwards, continue to respond to the inward and outward call commands in the downward direction and move to the bottom floor;

[0021] (2) When the elevator reaches the ground floor, the drainage mode is automatically activated: the car door opens, the roller rests on the switch bracket and the switch linkage rotates in the direction of the switch valve, and the protrusion presses against the press head.

[0022] If the water tank is full, the door closing button will be ineffective, and the water will drain for the set time. Once the set time has elapsed, the elevator will operate normally if there is an internal call registration; otherwise, the water will continue to drain. If the water tank is not full, there is no need to drain for the set time, and the elevator will operate normally.

[0023] The advantages of this invention are: simple structure, low cost, and a certain slope design for the car floor to effectively and automatically collect water from the car floor; the design of the float switch, switch bracket, switch valve and switch linkage can quickly and intelligently drain water without hindering the operation of the elevator, without the need to add additional waterproofing measures to the elevator and surrounding equipment. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 This is a top view of the structure of an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure;

[0027] Figure 3 yes Figure 1 A schematic diagram of the BB cross-sectional structure;

[0028] Figure 4 This is a side view of the drainage mode structure according to an embodiment of the present invention;

[0029] Figure 5 yes Figure 4 A schematic diagram of the C-section structure;

[0030] Figure 6 This is a schematic diagram of the switch linkage structure;

[0031] Figure 7 This is a schematic diagram of the water tank structure.

[0032] 1. Ground surface, 2. Water tank, 21. Stainless steel screen, 3. Water collection device, 31. Drainage trough, 32. Hose, 33. Water tank, 33. Removable filter screen, 331. Float switch, 332. Switch valve, 34. Press head, 341. Drain pipe, 35. Housing, 36. Switch linkage, 37. Protrusion, 371. Roller, 38. Limiting component, 39. Drain outlet, 4. Switch bracket, 5. Vertical part, 51. Inclined part, 52. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0034] like Figure 1-7 As shown, an elevator car drainage device is provided, wherein a water tank 2 is provided in the floor 1 of the elevator car, a water collection device 3 connected to the water tank 2 is provided at the bottom of the elevator car, and a drain outlet 4 and a switch bracket 5 for draining water from the water collection device 3 are provided in the bottom pit of the elevator shaft.

[0035] The ground 1 is inclined, and the water tank 2 is located at the lowest point of the inclination of the ground 1. Those skilled in the art can design the position of the water tank according to conventional technical means to successfully collect water from the ground.

[0036] The water collection device 3 includes a drainage trough 31, a hose 32, a water tank 33, a switch valve 34, and a drain pipe 35. The drainage trough 31 is installed on the outlet of the water tank 2. The upper end of the hose 32 is connected to the drainage trough 31, and the lower end of the hose 32 is connected to the water tank 33. The drain pipe 35 is installed on the bottom of the water tank 33, and the switch valve 34 is installed on the drain pipe 35.

[0037] When the elevator car is located at the bottom floor, the drain end of the drain pipe 35 matches the drain outlet 4.

[0038] The water collection device 3 also includes a housing 36 installed at the bottom of the water tank 33 and surrounding the outside of the switch valve 34, and a switch linkage 37 and a limiting assembly 39 installed on the housing 36. The housing 36 has a notch on one side corresponding to the switch bracket 5.

[0039] The switching valve 34 is a push-button type switching valve, with the push-button head of the push-button switching valve facing the notch.

[0040] The lower end of the switch linkage 37 is rotatably mounted inside the housing 36. The upper end of the switch linkage 37 extends towards the switch bracket and is provided with a roller 38. The middle part of the switch linkage 37 is provided with a protrusion 371 corresponding to the pressing head 341 of the pressing switch valve. The switch linkage 37 is located on the side of the switch valve 34 near the notch. The limiting component 39 is located on the side of the switch linkage 37 near the notch. The installation position of the limiting component 39 is not higher than the roller 38 and not lower than the lower end of the switch linkage. When the elevator car is at the bottom, the roller 38 presses against the switch bracket 5 and the switch linkage 37 rotates towards the switch valve 34. The protrusion 371 presses the pressing head 341, opening the switch valve 34 to drain water. When the elevator car moves upward, the roller 38 leaves the switch bracket 5, and the upper end of the switch linkage 37 rotates towards the limiting component 39. The limiting component 39 limits the tilt range of the switch linkage 37.

[0041] The switch bracket 5 includes a vertical part 51 and an inclined part 52 located at the top of the vertical part. The inclined part 52 is inclined downward from the pit wall toward the switch valve 34.

[0042] The ground surface 1 is a patterned stainless steel surface;

[0043] The surface of the water tank 2 is provided with a stainless steel screen 21.

[0044] The water tank 33 is equipped with a detachable filter screen 331 on the upper part. The detachable filter screen 331 is a drawer-type detachable installation inside the water tank 33. The waste can be cleaned by pulling out the detachable filter screen 331. A float switch 332 is provided at the highest water level of the water tank 33.

[0045] The present invention also provides a drainage method for the elevator car drainage device described above, the process comprising:

[0046] (1) Because the floor 1 of the elevator car is tilted, the water will flow into the water tank 2 and then into the water tank 33 at the bottom of the car. The float switch 332 monitors whether the water tank 33 is full. If the water tank 33 is not full, the elevator will run normally.

[0047] If water tank 33 is full and the elevator is moving upwards, it will continue to respond to the upward call commands and move to the bottom floor.

[0048] If water tank 33 is full and the elevator is moving downwards, continue to respond to the inward and outward call commands in the downward direction and move to the bottom floor;

[0049] (2) When the elevator reaches the ground floor, the drainage mode is automatically activated: the car door opens, the roller 38 rests on the switch bracket 5 and the switch linkage 37 rotates towards the switch valve 34, and the protrusion 371 presses the press head 341.

[0050] If the water tank is full, the door closing button will be ineffective. The system will drain water for 30 seconds as set. After 30 seconds of drainage, if the elevator has an internal call registration, it will operate normally; if the elevator has no internal call registration, drainage will continue; if the water tank is not full, there is no need to drain water for the system's set time, and the elevator will operate normally.

[0051] The technical solutions provided by the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the embodiments above are only for helping to understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An elevator car drainage device, characterized in that: The elevator car floor is equipped with a water tank, and the bottom of the elevator car is equipped with a water collection device connected to the water tank. The elevator shaft pit is equipped with a drain outlet and a switch bracket for draining water from the water collection device.

2. The elevator car drainage device according to claim 1, characterized in that: The ground is sloping, and the water tank is located at the lowest point of the slope.

3. An elevator car drainage device according to claim 1 or 2, characterized in that: The water collection device includes a drainage trough, a hose, a water tank, a switch valve, and a drain pipe. The drainage trough is installed at the outlet of the water tank. The upper end of the hose is connected to the drainage trough, and the lower end of the hose is connected to the water tank. The drain pipe is installed at the bottom of the water tank, and the switch valve is installed on the drain pipe. When the elevator car is located on the ground floor, the drain end of the drain pipe matches the drain outlet.

4. The elevator car drainage device according to claim 1, characterized in that: The water collection device also includes a housing installed at the bottom of the water tank and surrounding the switch valve, and a switch linkage and a limiting assembly installed on the housing. The housing has a notch on one side corresponding to the switch bracket.

5. The elevator car drainage device according to claim 4, characterized in that: The switch valve is a push-button type switch valve, and the push-button head of the push-button switch valve faces the notch.

6. The elevator car drainage device according to claim 5, characterized in that: The lower end of the switch linkage is rotatably mounted inside the housing. The upper end of the switch linkage extends towards the switch bracket and is equipped with a roller. The middle part of the switch linkage has a protrusion corresponding to the pressing head of the press switch valve. The switch linkage is located on the side of the switch valve near the notch. The limiting component is located on the side of the switch linkage near the notch. The installation position of the limiting component is not higher than the roller and not lower than the lower end of the switch linkage. When the elevator car is at the bottom, the roller rests on the switch bracket and the switch linkage rotates toward the switch valve, the protrusion presses the pressing head, and the switch valve is opened to drain water; when the elevator car moves upward, the roller 38 leaves the switch bracket, the upper end of the switch linkage rotates toward the limit component, and the limit component limits the tilting range of the switch linkage.

7. The elevator car drainage device according to claim 4, characterized in that: The switch bracket includes a vertical part and an inclined part located at the top of the vertical part, the inclined part being inclined downward from the pit wall toward the switch valve.

8. The elevator car drainage device according to claim 1, characterized in that: The floor is a patterned stainless steel floor; The surface of the water tank is equipped with a stainless steel screen.

9. The elevator car drainage device according to claim 1, characterized in that: The water tank is equipped with a removable filter screen on the upper part. The removable filter screen is a drawer-type removable installation inside the water tank, and a float switch is provided at the highest water level of the water tank.

10. A drainage method for an elevator car drainage device as described in any one of claims 1-9, characterized in that: The process includes: (1) Because the floor of the elevator car is tilted, water will flow into the water tank and then into the water tank at the bottom of the car. The float switch monitors whether the water tank is full. If the water tank is not full, the elevator will run normally. If the water tank is full and the elevator is moving upwards, it will continue to respond to the upward call commands and move down to the bottom floor. If the water tank is full and the elevator is moving downwards, continue to respond to the inward and outward call commands in the downward direction and move to the bottom floor; (2) When the elevator reaches the ground floor, the drainage mode is automatically activated: the car door opens, the roller rests on the switch bracket and the switch linkage rotates in the direction of the switch valve, and the protrusion presses against the press head. If the water tank is full, the door closing button will be ineffective, and the water will drain for the set time. Once the set time has elapsed, the elevator will operate normally if there is an internal call registration; otherwise, the water will continue to drain. If the water tank is not full, there is no need to drain for the set time, and the elevator will operate normally.

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