Foundation pit drainage equipment

Abstract

The invention relates to the technical field of building foundation pit drainage, in particular to foundation pit drainage equipment which comprises a movable seat and further comprises a pipeline arranged on the movable seat and a pump body installed on the pipeline. The transverse plate is arranged at the water inlet end of the pipeline in a sealing and sliding manner, two filtering areas are formed on the transverse plate, and the transverse plate is driven by an elastic triggering mechanism mounted on the pipeline to switch the positions of the two filtering areas; the monitoring mechanism is arranged on the pipeline and comprises a first cylinder body communicated with the pipeline and a piston disc which slides in the first cylinder body in a sealed mode, an elastic connecting piece is installed on the piston disc, and the elastic connecting piece can move along with the piston disc so that when the pressure intensity in the pipeline is reduced due to blockage of the filtering area, the elastic connecting piece can move along with the piston disc; the elastic connecting piece promotes the elastic triggering mechanism to move, so that the elastic triggering mechanism drives the filtering area in the pipeline to be guided out and the other filtering area to enter the pipeline, smooth proceeding of foundation pit drainage work can be effectively guaranteed, damage to the pipeline and the pump body is avoided, and the drainage work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building foundation pit drainage, in particular to a foundation pit drainage equipment. BACKGROUND

[0002] Green building is a building concept that focuses on sustainable development, efficient use of resources and environmental protection. It aims to achieve the harmonious coexistence of buildings and the natural environment through optimized design, construction and operation. During the construction process, foundation pit engineering is an indispensable important link. During the construction of the foundation pit, water accumulation problems often occur. The water accumulation in the foundation pit will soak the side slope of the foundation pit, causing the stability of the side slope soil to decrease, and easily causing collapse accidents. Secondly, the water accumulation will soak the foundation of the building, causing the bearing capacity of the foundation to decrease, affecting the structural stability of the building. Therefore, effectively draining the water in the foundation pit is an important task in the construction process of green buildings.

[0003] At present, for the foundation pit drainage work, a robot carrying a water pump is mostly used for operation. Various foreign matters such as gravel, soil, construction waste, etc. often exist in the foundation pit. These foreign matters may enter the water pump and the pipeline, causing the water pump and the pipeline to be blocked. Once the blockage occurs, the working efficiency of the water pump will be reduced, and even the water pump and the pipeline will be damaged, increasing the risk of maintenance cost and construction delay.

[0004] In view of this, some foundation pit drainage equipment sets a filter structure on the drainage pipe for intercepting foreign matters to prevent them from entering the water pump and the pipeline. However, as the running time of the device increases, the foreign matters are easily stuck in the filter holes on the filter structure, causing blockage. When the filter structure is blocked, the water flow in the drainage pipe will be poor, further reducing the drainage efficiency, and even the entire drainage system may fail. For this, some devices set a pressure sensor on the water suction pipeline to judge whether there is a blockage problem by monitoring the pressure change in the pipeline. If a significant change in pressure is detected, a signal will be sent, and the corresponding dredging mechanism will intervene. However, the impact and fluctuation of the water flow during the foundation pit drainage process will cause the pressure in the pipeline to change rapidly and be unstable, which may cause the measurement signal of the pressure sensor to vibrate or have errors. In addition, if there are small impurities or particulate matters in the drainage pipeline, they may block the pressure sensing port of the sensor, causing inaccurate measurement and affecting the measurement accuracy. SUMMARY

[0005] The purpose of the present application is to provide a foundation pit drainage equipment to solve the problems raised in the background.

[0006] To achieve the above purpose, the present application provides the following technical scheme: A foundation pit drainage equipment, comprising a moving seat, further comprising: The water pumping mechanism arranged on the mobile base comprises a pipeline arranged on the mobile base and a pump body mounted on the pipeline; The transverse plate is sealingly and slidably arranged on the water inlet end of the pipeline, and two filter areas are formed on the transverse plate. The transverse plate is driven by the elastic trigger mechanism mounted on the pipeline to switch the positions of the two filter areas. The monitoring mechanism arranged on the pipeline comprises a first cylinder body in communication with the pipeline and a piston disc sealingly and slidably arranged in the first cylinder body. An elastic connecting member is mounted on the piston disc. The elastic connecting member can move with the piston disc to promote the movement of the elastic trigger mechanism when the pressure in the pipeline is reduced due to the blockage of the filter area, so that the elastic trigger mechanism drives the filter area in the pipeline to be discharged and the other filter area to enter the pipeline.

[0007] As a further scheme of the present application, the elastic connecting member comprises a column which is slidingly arranged on the first cylinder body and fixedly connected with the piston disc. A first spring is sleeved on the outer periphery of the column. One end of the first spring is connected with the first cylinder body, and the other end is connected with the end of the column away from the first cylinder body. A connecting arm is further fixed to the end of the column away from the piston disc. The connecting arm is provided with an extension structure matched with the elastic trigger mechanism.

[0008] As a further scheme of the present application, the elastic trigger mechanism comprises a second cylinder body and a horizontal shaft rotationally connected with the second cylinder body. The second cylinder body is fixed on the pipeline. One end of the horizontal shaft is matched with the extension structure, and the other end is connected with the transverse plate through a sliding assembly. The instantaneous deflection assembly is arranged on the horizontal shaft in the second cylinder body.

[0009] As a further scheme of the present application, the instantaneous deflection assembly comprises: An arm is fixed on the horizontal shaft, and the length direction of the arm is perpendicular to the axial direction of the horizontal shaft. A sliding block is slidingly mounted on the arm. A pulley is rotationally mounted on the sliding block. The pulley is rollingly matched with a limiting structure formed on the inner wall of the second cylinder body. A sleeve is slidingly sleeved on the horizontal shaft. Two ends of a third spring sleeved on the horizontal shaft are respectively connected with the sleeve and an annular protrusion fixed on the horizontal shaft. A connecting rod is hingedly connected with the sleeve and the sliding block at two ends thereof.

[0010] As a further scheme of the present application, the limiting structure comprises two protruding portions fixed on the inner wall of the second cylinder body. The two protruding portions are equidistantly distributed along the circumference. The side of the protruding portion facing the horizontal shaft is formed with an inclined section, a first arc section and a second arc section connected in sequence. The first arc section is eccentric to the horizontal shaft.

[0011] As a further embodiment of the present invention: a sliding sleeve fixed to the cross plate is slidably sleeved on the pipe, and a guide arm is also fixed on the pipe. The sliding assembly includes a movable block slidably disposed on the guide arm and a transmission crossbar fixed to the movable block. A push-pull rod is provided between the movable block and the sliding sleeve, and the two ends of the push-pull rod are respectively hinged to the movable block and the sliding sleeve. Wherein, a disc is fixed at the end of the horizontal axis away from the first cylinder, a drive column is fixed at the eccentric part of the disc, and a sliding groove adapted to the drive column is provided on the transmission crossbar along its own length direction. The drive column extends into the sliding groove and is slidably connected to the transmission crossbar.

[0012] As a further embodiment of the present invention: a driven block is fixed at one end of the horizontal axis away from the disk body. The driven block is rectangular in shape. The telescopic structure includes a driving block disposed on the connecting arm by two sets of elastic elements and cooperating with the driven block. The driving block is a right trapezoidal shape. The elastic element includes a guide cylinder fixed to the connecting arm and a telescopic rod slidably fitted with the guide cylinder. The telescopic rod is fixed to the driving block. A second spring is also provided inside the guide cylinder, and the two ends of the second spring are respectively connected to the inner wall of the guide cylinder and the telescopic rod.

[0013] As a further embodiment of the present invention, it also includes an air-blowing cleaning mechanism disposed on a movable base. The air-blowing cleaning mechanism includes an air pump installed on the movable base and two air-blowing heads connected to the air outlet of the air pump through a conduit. The air-blowing heads are adapted to the filter area. The two air-blowing heads are respectively located on both sides of the water inlet end of the pipe and above the horizontal plate. The two filter areas can each correspond to the two air-blowing heads.

[0014] As a further embodiment of the present invention: two vertical arms are fixedly installed on the movable seat, respectively located on both sides of the pipe. The pipe can be driven by a height adjustment mechanism provided on the movable seat to perform lifting and lowering actions. The height adjustment mechanism includes a lifting seat slidably disposed between the two vertical arms. The lifting seat is fixed to the pipe. A hydraulic cylinder is also rotatably installed on the movable seat. The movable end of the hydraulic cylinder is hinged to the lifting seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a horizontal plate that can move along the pipe's axial direction, with two filter zones on the plate that can enter the pipe separately. This allows for the removal of foreign matter from the water pumped into the pipe. A monitoring mechanism is also installed on the pipe to monitor the blockage status of the filter zones. When a preset level is reached, an elastic trigger mechanism activates the other filter zone to participate in the foreign matter removal process. The blocked filter zone is then discharged outside the pipe and cleared by an air-blowing cleaning mechanism. Therefore, this method of alternating foreign matter removal using two filter zones effectively ensures the smooth operation of the foundation pit drainage work, avoids damage to the pipes and pumps, and improves the efficiency of the drainage work. This invention utilizes a horizontal axis and two protrusions within the second cylinder that cooperate with pulleys. By adjusting the sliding displacement of the piston disc, when the clogging of the filter zone reaches a preset level, the third spring can quickly rebound. This, in turn, drives the horizontal plate to move axially along the pipe via a sliding assembly, achieving automatic switching of the filter zone. Compared to sensor monitoring, this mechanical transmission triggering method offers better stability and effectively avoids inaccurate detection due to external influences, preventing losses caused by delayed interventions after clogging occurs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of a foundation pit drainage device.

[0017] Figure 2 This is a structural schematic diagram of another embodiment of a foundation pit drainage device.

[0018] Figure 3 This is a structural schematic diagram of another embodiment of a foundation pit drainage device from another angle.

[0019] Figure 4 This is a schematic diagram of the internal structure of the second cylinder in one embodiment of a foundation pit drainage device.

[0020] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0021] Figure 6 This is a schematic diagram of the elastic triggering mechanism in one embodiment of a foundation pit drainage device.

[0022] Figure 7 This is a schematic diagram showing the distribution of two protrusions inside the second cylinder in one embodiment of a foundation pit drainage device.

[0023] Figure 8 This is an exploded view of the monitoring mechanism in one embodiment of a foundation pit drainage device.

[0024] Figure 9This is a schematic diagram illustrating the connection relationship between the horizontal plate and the sliding component in one embodiment of a foundation pit drainage device.

[0025] In the diagram: 1. Movable seat; 101. Vertical arm; 2. Pipeline; 3. Pump body; 4. Horizontal plate; 401. Filter zone; 5. Sliding sleeve; 6. Guide arm; 7. Movable block; 8. Transmission crossbar; 801. Slide groove; 9. Push-pull rod; 10. First cylinder; 1001. Limiting groove; 11. Piston disc; 12. Column; 1201. Strip protrusion; 13. First spring; 14. Connecting arm; 15. Drive block; 16. Guide cylinder; 17. Telescopic rod; 18. Second spring 19. Spring; 20. Second cylinder; 21. Protrusion; 2001. Inclined section; 2002. First arc-shaped section; 2003. Second arc-shaped section; 21. Horizontal shaft; 2101. Annular protrusion; 2102. Support arm; 22. Driven block; 23. Third spring; 24. Disc; 2401. Drive column; 25. Kit; 26. Connecting rod; 27. Slider; 28. Pulley; 29. ​​Lifting seat; 30. Hydraulic cylinder; 31. Air pump; 32. Conduit; 33. Air blower. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0028] Please see Figures 1-9 In this embodiment of the invention, a foundation pit drainage device includes a movable base 1, and further includes: The pumping mechanism provided on the movable base 1 includes a pipe 2 provided on the movable base 1 and a pump body 3 installed on the pipe 2. The pipe 2 can be driven by a height adjustment mechanism provided on the movable base 1 to perform lifting and lowering actions. A horizontal plate 4 is provided at the water inlet end of the pipe 2 in a sealed sliding manner. The horizontal plate 4 is provided with two filter areas 401. The horizontal plate 4 is connected to an elastic triggering mechanism installed on the pipe 2. The elastic triggering mechanism can drive the horizontal plate 4 to slide relative to the pipe 2 so that the two filter areas 401 can enter the interior of the pipe 2 respectively. A monitoring mechanism is installed on the pipeline 2. The monitoring mechanism cooperates with the elastic triggering mechanism. The monitoring mechanism includes a first cylinder 10 connected to the pipeline 2 and a piston disc 11 that is sealed and slides inside the first cylinder 10. An elastic connector is installed on the piston disc 11. When the filter holes in the filter area 401 in the pipeline 2 are blocked (the throughput decreases), the pumping mechanism continues to operate, which reduces the pressure in the pipeline 2. The monitoring mechanism can cause the elastic triggering mechanism to move, so that the elastic triggering mechanism drives the filter area 401 in the pipeline 2 to be discharged and another filter area 401 to enter the pipeline 2. It should be noted that the bottom of the mobile seat 1 is equipped with tracked wheels, which provide effective support for the movement of the device in the pit, thereby realizing the mobile drainage operation of the device and improving work efficiency. To further explain the working principle of the present invention, during actual drainage operations, the movable seat 1 moves within the foundation pit, and the outlet end of the pipe 2 is connected to the outside of the foundation pit via a flexible hose. When the pump body 3 operates, the accumulated water in the foundation pit is pumped out. At this time, the filter zone 401 located within the pipe 2 filters out foreign matter in the accumulated water. As the running time increases, when the blockage of the filter zone 401 in the pipe 2 reaches a preset level, the monitoring mechanism causes the elastic trigger mechanism to move, and the elastic trigger mechanism drives the horizontal plate 4 to move along the axial direction of the pipe 2. As a result, the filter zone 401 in the pipe 2 is discharged, and another filter zone 401 enters the pipe 2. For the filter area 401 that leads to the outside of the pipe 2, the air blowing cleaning mechanism blows a high-speed airflow into the filter area 401 to blow away foreign objects stuck in its filter holes, thereby achieving the purpose of unblocking. To address this, the present invention provides a horizontal plate 4 that can move axially along the pipe 2, and two filter zones 401 that can enter the pipe 2 respectively, to filter out foreign matter from the water pumped into the pipe 2. A monitoring mechanism is also provided on the pipe 2 to monitor the blockage of the filter zones 401. When a preset level is reached, an elastic triggering mechanism will activate the other filter zone 401 to participate in the foreign matter removal. The blocked filter zone 401 will then be discharged outside the pipe 2 and cleared by an air-blowing cleaning mechanism. Therefore, this method of alternating foreign matter removal using two filter zones 401 effectively ensures the smooth progress of the foundation pit drainage work, avoids damage to the pipe 2 and the pump body 3, and improves the efficiency of the drainage work.

[0029] It should be noted that, regarding the preset level, when the clogging level of the filter zone 401 reaches this level and no measures are taken, the pump body 3 continues to work. Subsequently, the clogging level of the filter zone 401 worsens, and the pump body 3 and the pipe 2 may be damaged, and the drainage efficiency is also greatly reduced.

[0030] Please refer to it again. Figure 8 The elastic connector includes a column 12, which is slidably disposed on the first cylinder 10 and fixedly connected to the piston disc 11. A first spring 13 is sleeved on the outer periphery of the column 12. One end of the first spring 13 is connected to the first cylinder 10, and the other end is connected to the end of the column 12 away from the first cylinder 10. A connecting arm 14 is also fixed to the end of the column 12 away from the piston disc 11. The connecting arm 14 is provided with a telescopic structure that cooperates with the elastic triggering mechanism.

[0031] During the drainage construction process, when the blockage of the filter zone 401 gradually worsens, if the power of the pump body 3 remains unchanged, the piston disc 11 will slide in the first cylinder 10 toward the inside of the pipe 2, and correspondingly, the first spring 13 will be compressed. In response, when the sliding displacement of the piston disc 11 inside the first cylinder 10 reaches a certain value, corresponding to the preset degree of blockage of the filter zone 401, the connecting arm 14 drives the telescopic structure to cause the elastic trigger mechanism to move, so that the horizontal plate 4 moves along the axial direction of the pipe 2, switching another filter zone 401 into the pipe 2 to participate in the filtration of accumulated water. It should be noted that, in order to ensure the precise cooperation between the telescopic structure and the elastic triggering mechanism, two strip-shaped protrusions 1201 are provided on the outer wall of the column 12, and two limiting grooves 1001 adapted to the strip-shaped protrusions 1201 are provided on the inner wall of the circular hole at the top of the first cylinder 10 for the column 12 to pass through. The setting of the limiting grooves 1001 and the strip-shaped protrusions 1201 can effectively guide the movement of the piston disc 11 and the column 12, thereby avoiding the relative rotation between the column 12 and the first cylinder 10, which would lead to the problem that the telescopic structure and the elastic triggering mechanism cannot cooperate precisely.

[0032] Please refer to it again. Figure 2 , Figure 5 as well as Figure 6 The elastic triggering mechanism includes: The second cylinder 19 is fixed to the pipe 2; A horizontal shaft 21 is rotatably installed inside the second cylinder 19, with one end of the horizontal shaft 21 cooperating with the telescopic structure and the other end connected to the horizontal plate 4 through a sliding assembly. The horizontal shaft 21 is provided with an instantaneous oscillation assembly located inside the second cylinder 19. The instantaneous oscillation assembly can drive the horizontal shaft 21 to rotate half a revolution, so that the sliding assembly drives the horizontal plate 4 to move along the axial direction of the pipe 2.

[0033] The instantaneous yaw component includes: Support arm 2102 is fixed on the horizontal shaft 21 and the length direction of support arm 2102 is perpendicular to the axial direction of the horizontal shaft 21. A slider 27 is slidably mounted on the support arm 2102. A pulley 28 is rotatably mounted on the slider 27. The pulley 28 is in rolling cooperation with a limiting structure formed on the inner wall of the second cylinder 19. The kit 25 is slidably sleeved on the horizontal shaft 21. The two ends of the third spring 23 sleeved on the horizontal shaft 21 are respectively connected to the kit 25 and the annular protrusion 2101 fixed on the horizontal shaft 21. Link 26, the two ends of which are hinged to the kit 25 and the slider 27 respectively.

[0034] Please refer to it again. Figure 7 The limiting structure includes two protrusions 20 fixed on the inner wall of the second cylinder 19. The two protrusions 20 are equidistantly distributed along the circumference. The protrusions 20 form an inclined segment 2001, a first arc segment 2002, and a second arc segment 2003 connected in sequence on the side facing the horizontal axis 21. The first arc segment 2002 is not concentric with the horizontal axis 21.

[0035] In detail, with attachment Figure 7 Taking the state shown as an example, as the degree of blockage in the filter zone 401 in the pipe 2 increases, the downward movement of the piston disc 11 in the first cylinder 10 gradually increases. Correspondingly, the connecting arm 14 drives the telescopic structure to cause the horizontal shaft 21 to rotate clockwise. As a result, the pulley 28 rolls along the inclined section 2001. During this process, the pulley 28 and the slider 27 give way, that is, the slider 27 slides on the support arm 2102 close to the horizontal shaft 21, and pushes the kit 25 to slide on the horizontal shaft 21 toward the annular protrusion 2101 through the connecting rod 26, so that the third spring 23 is compressed. Subsequently, the pulley 28 rolls onto the second arc segment 2003, which corresponds to the preset degree of blockage in the filter area 401. As the horizontal axis 21 continues to rotate, after the pulley 28 passes the second arc segment 2003, the third spring 23 will rebound. Since the first arc segment 2002 is not concentric with the horizontal axis 21, the rebound of the third spring 23 will proceed rapidly, causing the horizontal axis 21 to swing clockwise. Finally, the horizontal axis 21 completes a 180° rotation, causing the sliding component to drive the horizontal plate 4 to move along the axial direction of the pipe 2, thereby realizing the automatic replacement function of the filter zone 401 when a blockage occurs.

[0036] Please refer to it again. Figure 6 and Figure 9 The pipe 2 is slidably fitted with a sliding sleeve 5 fixed to the horizontal plate 4. The pipe 2 is also fixed with a guide arm 6. The sliding assembly includes a movable block 7 slidably mounted on the guide arm 6 and a transmission crossbar 8 fixed to the movable block 7. A push-pull rod 9 is provided between the movable block 7 and the sliding sleeve 5. The two ends of the push-pull rod 9 are respectively hinged to the movable block 7 and the sliding sleeve 5. The end of the horizontal shaft 21 away from the first cylinder 10 is fixed with a disc 24. A drive column 2401 is fixed at the eccentric part of the disc 24. The transmission crossbar 8 is provided with a sliding groove 801 along its own length direction that is adapted to the drive column 2401. The drive column 2401 extends into the sliding groove 801 and is slidably connected to the transmission crossbar 8.

[0037] Furthermore, when the horizontal shaft 21 rotates (half a revolution), it drives the disc 24 to rotate half a revolution. Correspondingly, the drive column 2401 slides with the transmission crossbar 8 through the slide groove 801, causing the transmission crossbar 8 to drive the movable block 7 to slide on the guide arm 6. Then, the movable block 7 will drive the sliding sleeve 5 and the horizontal plate 4 to move along the length direction of the pipe 2 through the push-pull rod 9, realizing the automatic switching of the filter area 401.

[0038] To address this, the present invention provides a horizontal shaft 21 and two protrusions 20 within the second cylinder 19 that cooperate with the pulley 28. By utilizing the change in the sliding displacement of the piston disc 11, when the clogging of the filter zone 401 reaches a preset level, the third spring 23 can quickly rebound, thereby rapidly driving the horizontal plate 4 to move axially along the pipe 2 via the sliding assembly, achieving automatic switching of the filter zone 401. This mechanical transmission triggering method offers better stability compared to sensor monitoring, effectively avoiding inaccurate detection due to external influences and preventing losses caused by untimely intervention after clogging occurs.

[0039] Please refer to it again. Figure 7 The horizontal axis 21 is fixed with a driven block 22 at one end away from the disk body 24. The driven block 22 is rectangular. The telescopic structure includes a drive block 15 that is mounted on the connecting arm 14 via two sets of elastic elements and cooperates with the driven block 22. The drive block 15 is a right trapezoid. The elastic elements include a guide cylinder 16 fixed on the connecting arm 14 and a telescopic rod 17 that slides with the guide cylinder 16. The telescopic rod 17 is fixed to the drive block 15. The guide cylinder 16 is also provided with a second spring 18. The two ends of the second spring 18 are respectively connected to the inner wall of the guide cylinder 16 and the telescopic rod 17.

[0040] With attachment Figure 7 Taking the state shown as an example, as the degree of blockage in the filter zone 401 intensifies, the sliding displacement of the piston disc 11 within the first cylinder 10 gradually increases. Correspondingly, the connecting arm 14 drives the drive block 15 to move downward, gradually acting on one side of the driven block 22. During this process, the bottom surface of the drive block 15 contacts the driven block 22, enabling the driven block 22 and the horizontal axis 21 to rotate clockwise. Correspondingly, after the pulley 28 passes the second arc segment 2003, the third spring 23 quickly rebounds, completing the repositioning of the filter zone 401. After the repositioning is completed, the first spring 13 will rebound and cause the connecting arm 14 to drive the drive block 15 to rise and reset. During this process, the inclined surface on the drive block 15 will act on the end of the driven block 22, causing the drive block 15 to give way and the telescopic rod 17 to slide toward the inside of the guide cylinder 16. The second spring 18 is compressed until the drive block 15 reaches above the driven block 22, and then the telescopic rod 17 pops out from inside the guide cylinder 16. It should be emphasized that, in this invention, the elastic potential energy of the second spring 18, the first spring 13, and the third spring 23 gradually increases.

[0041] Please refer to it again. Figure 2 An air-blowing cleaning mechanism is provided on the movable base 1. The air-blowing cleaning mechanism can remove foreign objects in the filter area 401. The air-blowing cleaning mechanism includes an air pump 31 installed on the movable base 1 and two air-blowing heads 33 connected to the air outlet of the air pump 31 through a conduit 32. The air-blowing heads 33 are adapted to the filter area 401. The two air-blowing heads 33 are respectively located on both sides of the water inlet end of the pipe 2 and above the horizontal plate 4. The two filter areas 401 can each correspond to the two air-blowing heads 33.

[0042] Please refer to it again. Figure 2The movable seat 1 has two upright arms 101 fixedly installed on both sides of the pipe 2. The height adjustment mechanism includes a lifting seat 29 slidably disposed between the two upright arms 101. The lifting seat 29 is fixed to the pipe 2. A hydraulic cylinder 30 is also rotatably installed on the movable seat 1. The movable end of the hydraulic cylinder 30 is hinged to the lifting seat 29.

[0043] In detail, during actual operation, after the movable seat 1 reaches the drainage position, the movable end of the hydraulic cylinder 30 retracts, which can drive the lifting seat 29 to move downward. Correspondingly, the lifting seat 29 can drive the pipe 2 to move downward, thereby realizing the height adjustment of the water inlet end of the pipe 2, so that the water inlet end of the pipe 2 can be immersed in the water in the pit for pumping out the water. It should be further explained that during the drainage operation, the air pump 31 is turned on and can blow air through the conduit 32 and the air blowing head 33. The two filter zones 401 can correspond to the two air blowing heads 33 respectively. When there are foreign objects in the filter holes in the filter zone 401, the air blowing head 33 can blow high-speed airflow into the filter zone 401 to blow away the foreign objects stuck in the filter holes and achieve the purpose of unblocking.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foundation pit drainage device, comprising a movable base; Its features are, Also includes: A pumping mechanism mounted on a movable base includes a pipe mounted on the movable base and a pump body mounted on the pipe; A horizontal plate is slidably installed at the water inlet end of the pipe, and two filtration zones are formed on the horizontal plate. The horizontal plate is driven by an elastic triggering mechanism installed on the pipe to switch the position of the two filtration zones. The monitoring mechanism installed on the pipeline includes a first cylinder connected to the pipeline and a piston disc that slides and seals within the first cylinder. An elastic connector is installed on the piston disc. The elastic connector can move with the piston disc so that when the filter zone is blocked, causing a decrease in pressure inside the pipeline, the elastic connector causes an elastic triggering mechanism to move, which in turn causes the elastic triggering mechanism to drive the filter zone inside the pipeline out and another filter zone into the pipeline.

2. The foundation pit drainage device according to claim 1, characterized in that, The elastic connector includes a column, which is slidably disposed on the first cylinder and fixedly connected to the piston disc, and a first spring is sleeved on the outer periphery of the column; One end of the first spring is connected to the first cylinder, and the other end is connected to the end of the column away from the first cylinder. The end of the column away from the piston disc is also fixed with a connecting arm, and the connecting arm is provided with a telescopic structure that cooperates with the elastic triggering mechanism.

3. The foundation pit drainage device according to claim 2, characterized in that, The elastic triggering mechanism includes a second cylinder and a horizontal shaft rotatably connected to the second cylinder. The second cylinder is fixed on the pipe. One end of the horizontal shaft cooperates with the telescopic structure, and the other end is connected to the horizontal plate through a sliding component. It also includes an instantaneous yaw component, which is located on the horizontal axis inside the second cylinder.

4. The foundation pit drainage device according to claim 3, characterized in that, The instantaneous yaw component includes: The support arm is fixed on the horizontal axis and the length direction of the support arm is perpendicular to the axial direction of the horizontal axis. A slider is slidably mounted on the support arm, and a pulley is rotatably mounted on the slider. The pulley is in rolling cooperation with a limiting structure formed on the inner wall of the second cylinder. The kit is slidably fitted on the horizontal axis, and the two ends of the third spring fitted on the horizontal axis are respectively connected to the kit and the annular protrusion fixed on the horizontal axis. A connecting rod, the two ends of which are respectively hinged to the kit and the slider.

5. A foundation pit drainage device according to claim 4, characterized in that, The limiting structure includes two protrusions fixed on the inner wall of the second cylinder. The two protrusions are equidistantly distributed along the circumference. The protrusions form an inclined segment, a first arc segment, and a second arc segment connected in sequence on the side facing the horizontal axis, and the first arc segment is not concentric with the horizontal axis.

6. A foundation pit drainage device according to claim 5, characterized in that, The pipe is slidably fitted with a sliding sleeve fixed to the cross plate. A guide arm is also fixed on the pipe. The sliding assembly includes a movable block slidably mounted on the guide arm and a transmission cross bar fixed to the movable block. A push-pull rod is provided between the movable block and the sliding sleeve. The two ends of the push-pull rod are respectively hinged to the movable block and the sliding sleeve. Wherein, a disc is fixed at the end of the horizontal axis away from the first cylinder, a drive column is fixed at the eccentric part of the disc, and a sliding groove adapted to the drive column is provided on the transmission crossbar along its own length direction. The drive column extends into the sliding groove and is slidably connected to the transmission crossbar.

7. A foundation pit drainage device according to claim 6, characterized in that, A driven block is fixed at one end of the horizontal axis away from the disk body. The driven block is rectangular in shape. The telescopic structure includes a driving block that is mounted on the connecting arm by two sets of elastic elements and cooperates with the driven block. The driving block is a right trapezoidal shape. The elastic element includes a guide cylinder fixed to the connecting arm and a telescopic rod slidably fitted with the guide cylinder. The telescopic rod is fixed to the driving block. A second spring is also provided inside the guide cylinder, and the two ends of the second spring are respectively connected to the inner wall of the guide cylinder and the telescopic rod.

8. The foundation pit drainage device according to claim 1, characterized in that, It also includes an air-blowing cleaning mechanism mounted on a movable base. The air-blowing cleaning mechanism includes an air pump mounted on the movable base and two air-blowing heads connected to the air outlet of the air pump via conduits. The air-blowing heads are adapted to the filter area. The two air-blowing heads are located on both sides of the water inlet end of the pipe and above the horizontal plate. The two filter areas can each correspond to the two air-blowing heads.

9. A foundation pit drainage device according to claim 1, characterized in that, Two vertical arms are fixedly installed on the movable base, located on both sides of the pipe. The pipe can be driven by a height adjustment mechanism on the movable base to perform lifting and lowering actions. The height adjustment mechanism includes a lifting seat that is slidably disposed between the two vertical arms. The lifting seat is fixed to the pipe. A hydraulic cylinder is also rotatably installed on the movable base. The movable end of the hydraulic cylinder is hinged to the lifting seat.

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