A vacuum negative pressure water collection pipeline based on sewage recovery

Abstract

The present invention relates to the field of environmental protection technology, and discloses a vacuum negative pressure water collecting pipeline based on sewage recovery, comprising a vacuum negative pressure pump, an input water pipe fixedly connected to the outer surface of the vacuum negative pressure pump, an output water pipe fixedly connected to the outer surface of the vacuum negative pressure pump, a filter component for preventing impurities contained in the sewage from clogging the vacuum negative pressure pump and the input water pipe is arranged on the outer side of the input water pipe, a fastening component for preventing the connection between the vacuum negative pressure pump and the input water pipe from loosening when the vacuum negative pressure pump is working is arranged above the vacuum negative pressure pump, when vibration occurs, a first thorn-shaped gasket and a second thorn-shaped gasket will bite each other, thereby effectively inhibiting the loosening of the screw, and thus this structure not only improves the stability and safety of the filter component, but also avoids a series of problems caused by the falling off of the screw, and due to the enhanced sealing of the connection, the possibility of sewage overflow is greatly reduced, thereby reducing the risk of sewage flowing into the inside of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a vacuum negative pressure water collection pipeline based on sewage recovery. Background Art

[0002] The vacuum negative pressure water collection pipeline for sewage recycling creates a vacuum or negative pressure environment and uses the suction generated by negative pressure to extract sewage from various sewage sources (such as households, commercial facilities, factories, etc.), and then transports it to a central sewage treatment plant or recycling station through a pipeline system. At this time, the sewage is treated to remove harmful substances and meet environmental protection standards, and then it can be used for agricultural irrigation, industrial reuse or urban non-drinking water and other purposes.

[0003] As an innovative sewage collection and transportation system, the vacuum negative pressure water collection pipeline based on sewage recovery has many advantages, but it also has some disadvantages that cannot be ignored. First of all, the vacuum negative pressure water collection pipeline based on sewage recovery relies on a vacuum pump to extract sewage. However, impurities in sewage, such as paper, cellulose materials, plastic and rubber fragments, and grease, etc., are easily accumulated on the impeller of the vacuum pump and cause blockage. This blockage not only reduces the working efficiency of the vacuum pump and increases energy consumption, but also causes the system to fail and requires regular maintenance and cleaning. In order to solve this problem, the existing technology installs a filter device in the pipeline to prevent large particles of impurities from entering the vacuum pump and protect its normal operation. However, this filter device cannot completely eliminate the risk of blockage because the filter screen of the filter device itself can also be blocked by impurities.

[0004] The existing method of cleaning the filter mainly relies on manual operation, which is not only inefficient but also has great uncertainty. Workers usually need to judge whether the filter needs to be cleaned based on the size of the water flow, but this judgment method is often inaccurate and it is easy to miss the best time for cleaning. When the filter is severely clogged, the water flow will be blocked and the system performance will be reduced, and even cause the vacuum pump to malfunction. At the same time, the operator needs to clean more frequently, which not only increases the workload, but also causes the system to shut down for a long time, thereby affecting the normal recovery and treatment of sewage.

[0005] At the same time, in the process of vacuum pumping sewage, due to the effect of tangential force, the bolts at the connection between the water pipe and the vacuum pump are prone to vibration. If this vibration is not monitored and managed in a timely and effective manner, it will cause the bolts to loosen or even fall off. Once the bolts are loose or fall off, sewage will overflow from the connection. Due to the negative pressure formed when the vacuum pump extracts sewage, once the connection is not sealed tightly, sewage will overflow quickly, which not only pollutes the surrounding environment, but also damages surrounding equipment and buildings, thereby causing serious health problems and environmental pollution;

[0006] Secondly, loose or falling bolts will also cause damage to the vacuum pump and other related equipment. After the sewage overflows, some of the sewage will flow into the equipment, causing corrosion and accelerated wear of the equipment, and even causing electrical failures, causing equipment damage. The sewage overflow also poses a threat to the safety of surrounding personnel. The overflowed sewage contains toxic and harmful substances, such as heavy metals, chemicals, etc. Once these substances come into contact with the human body, they can easily cause human health problems, such as skin irritation, respiratory infections, etc.

[0007] Therefore, a vacuum negative pressure water collection pipeline based on sewage recovery is proposed. Summary of the invention

[0008] The purpose of the present invention is to provide a vacuum negative pressure water collection pipeline based on sewage recovery to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum negative pressure water collection pipeline based on sewage recovery, comprising a vacuum negative pressure pump, an input water pipe is fixedly connected to the outer surface of the vacuum negative pressure pump, an output water pipe is fixedly connected to the outer surface of the vacuum negative pressure pump, a filter component for preventing impurities contained in the sewage from clogging the vacuum negative pressure pump and the input water pipe is arranged on the outside of the input water pipe, and a fastening component for preventing the connection between the vacuum negative pressure pump and the input water pipe from loosening when the vacuum negative pressure pump is working is arranged above the vacuum negative pressure pump;

[0010] The filter assembly comprises a filter housing, the filter housing is fixedly connected to the outer surface of the input water pipe, a rotating disc is rotatably connected to the inner wall of the filter housing, the outer surface of the rotating disc is fixedly connected to filter screen connecting rods arranged in an annular manner and equidistantly, a rectangular block is fixedly connected to the top of the rotating disc, a metal spring is fixedly connected to the inner wall of the filter housing, a three-axis somatosensory gimbal is fixedly connected between the top of the inner cavity of the filter housing and the top of the rectangular block, an electrically controlled telescopic plate is symmetrically fixedly connected to the inner wall of the input water pipe, the electrically controlled telescopic plate is divided into a fixed shaft and a telescopic shaft, the telescopic shaft is movably installed with the fixed shaft, and a through groove is penetrated on the outer surface of the telescopic shaft of the electrically controlled telescopic plate, an end of the input water pipe away from the vacuum negative pressure pump is fixedly connected to an electromagnetic valve, and an end of the electromagnetic valve away from the input water pipe is fixedly connected to a sewage receiving pipe;

[0011] The fastening assembly includes a first connecting piece, the outer surface of one end of the input water pipe close to the vacuum negative pressure pump is fixedly connected with the first connecting piece, the water inlet of the vacuum negative pressure pump is fixedly connected with a second connecting piece, the first connecting piece and the second connecting piece are threadedly connected with screws arranged in a circular shape and equidistantly, a first thorn-shaped gasket is sleeved between the top of the screw and the first connecting piece, a second thorn-shaped gasket is sleeved on the surface of the screw and located above the first thorn-shaped gasket, and the surfaces of the first thorn-shaped gasket and the second thorn-shaped gasket are both provided with tooth grooves arranged in a circular shape and equidistantly.

[0012] Preferably, the three-axis somatosensory gimbal is electrically connected to an external controller, the extension and retraction of the electrically controlled retractable plate is electrically controlled by the external controller, and the activation and closing of the solenoid valve is electrically controlled by the external controller.

[0013] Preferably, the ratio of the engagement angle between the first thorn-shaped gasket and the second thorn-shaped gasket to the lead angle of the screw thread is two to three, and the ratio of the lift of the first thorn-shaped gasket and the second thorn-shaped gasket to the lift of the screw is two to three, so that when the screw is loose, the first thorn-shaped gasket and the second thorn-shaped gasket can tighten it.

[0014] Preferably, the shape of the electrically controlled telescopic plate is matched with the shape of the inner wall of the input water pipe, so that the shape adaptation can achieve a close fit.

[0015] Preferably, the vacuum negative pressure pump is electrically controlled to start and stop by an external controller.

[0016] Preferably, the output water pipe is fixedly connected to an external sewage storage tank.

[0017] Preferably, the shape of the metal spring piece is adapted to the shape of the rectangular block, so that the shape adaptation can achieve a close fit.

[0018] Preferably, the shape of the through groove is matched with the shape of the filter connecting rod, so that the shape adaptation can achieve a close fit.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the filter connecting rod is blocked, the water flow is blocked and the filter connecting rod is subjected to a large tangential force, so the filter connecting rod drives the rotating disc to rotate, and the rotation of the rotating disc is restricted by the metal spring piece on the rectangular block, so that the rotating disc is only rotated 90 degrees each time during the rotation process, and the filter is replaced accurately, thereby greatly improving the stability and efficiency of the filter assembly. This structure makes the filter replacement process more efficient and convenient. The restriction of the metal spring piece on the rectangular block reduces the mechanical movement and time consumption during the replacement process, and reduces the complexity of the operation, so that the filter assembly can respond to the needs of filter replacement more quickly. Further, this structure It not only improves work efficiency, but also helps to reduce the impact of long-term downtime on the sewage treatment process. Secondly, because the automatic replacement of the filter connecting rod is determined by the tangential force, this automated replacement method reduces the possibility of human intervention and misoperation, allowing the filter component to operate continuously and stably. In addition, automatic replacement of the filter can also help reduce the risk of clogging, thereby avoiding the problem of serious filter clogging caused by inaccurate judgment or untimely cleaning in traditional cleaning methods. This structure can detect and deal with filter clogging problems in a timely manner, ensuring that the system always runs in the best state, thereby greatly reducing the risk of clogging and improving the stability of the filter component.

[0021] 2. When vibration occurs, the first thorn-shaped gasket and the second thorn-shaped gasket will bite each other, thereby effectively inhibiting the loosening of the screws. This structure not only improves the stability and safety of the filter assembly, but also avoids a series of problems caused by the screws falling off. First, the first thorn-shaped gasket and the second thorn-shaped gasket significantly improve the sealing and stability of the connection. Through the bite action of the first thorn-shaped gasket and the second thorn-shaped gasket, the first thorn-shaped gasket and the second thorn-shaped gasket can effectively resist the negative pressure and tangential force formed when the vacuum negative pressure pump extracts sewage, and ensure that the connection always remains sealed, thereby greatly reducing the risk of sewage overflowing from the connection, further avoiding the environmental pollution caused by sewage overflow and damage to surrounding equipment and buildings. Secondly, due to the enhanced sealing of the connection, the possibility of sewage overflow is greatly reduced, thereby reducing the risk of sewage flowing into the equipment. Further, this structure not only extends the service life of the equipment, but also avoids the maintenance and replacement costs caused by equipment corrosion, accelerated wear and electrical failure. This structure also avoids the threat to the health of surrounding personnel caused by sewage overflow by preventing the screws from loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the main structure of the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of the main structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A magnified view of the structure at center;

[0025] Figure 4 It is a cross-sectional stereoscopic schematic diagram of the main structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0027] Figure 6 It is a cross-sectional perspective schematic diagram of the filter assembly of the present invention;

[0028] Figure 7 It is a sectional stereoscopic schematic diagram of the internal connection relationship of the filter assembly of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C in the middle.

[0030] In the figure:

[0031] 1. Vacuum negative pressure pump; 2. Input water pipe; 3. Output water pipe;

[0032] The filter assembly includes: 41, filter housing; 42, rotating disc; 43, filter screen connecting rod; 44, rectangular block; 45, metal spring; 46, three-axis somatosensory gimbal; 47, electric control telescopic plate; 48, through slot; 49, solenoid valve; 410, sewage receiving pipe;

[0033] The fastening assembly includes: 51, a first connecting member; 52, a second connecting member; 53, a screw; 54, a first spinous gasket; 55, a second spinous gasket; 56, a tooth groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 8 As shown, the present invention provides an embodiment:

[0036] A vacuum negative pressure water collection pipeline based on sewage recovery includes a vacuum negative pressure pump 1, which is electrically controlled to start and shut down by an external controller, an input water pipe 2 is fixedly connected to the outer surface of the vacuum negative pressure pump 1, an output water pipe 3 is fixedly connected to the outer surface of the vacuum negative pressure pump 1, and the output water pipe 3 is fixedly connected to an external sewage storage tank, a filter component for preventing impurities contained in the sewage from clogging the vacuum negative pressure pump 1 and the input water pipe 2 is arranged on the outside of the input water pipe 2, and a fastening component for preventing the vacuum negative pressure pump 1 and the input water pipe 2 from loosening when the vacuum negative pressure pump 1 is working is arranged above the vacuum negative pressure pump 1;

[0037] The filter assembly includes a filter housing 41, which is fixedly connected to the outer surface of the input water pipe 2. A rotating disc 42 is rotatably connected to the inner wall of the filter housing 41. The outer surface of the rotating disc 42 is fixedly connected to filter connecting rods 43 arranged in an annular manner and equidistantly. A rectangular block 44 is fixedly connected to the top of the rotating disc 42. A metal spring 45 is fixedly connected to the inner wall of the filter housing 41. The shape of the metal spring 45 is adapted to the shape of the rectangular block 44, which plays a role of shape adaptation and close fit. A three-axis somatosensory gimbal 46 is fixedly connected between the top of the inner cavity of the filter housing 41 and the top of the rectangular block 44. The three-axis somatosensory gimbal 46 is electrically connected to an external controller, and the electric-controlled telescopic plate 47 is electrically controlled by the external controller to extend and retract. The shape of the electrically controlled telescopic plate 47 is adapted to the shape of the inner wall of the input water pipe 2, and plays a role of shape adaptation and close cooperation. The solenoid valve 49 is electrically controlled to start and close by an external controller. The inner wall of the input water pipe 2 is symmetrically fixedly connected with the electrically controlled telescopic plate 47. The electrically controlled telescopic plate 47 is divided into a fixed axis and a telescopic axis. The telescopic axis is movably installed with the fixed axis. The outer surface of the telescopic axis of the electrically controlled telescopic plate 47 is penetrated with a through groove 48. The shape of the through groove 48 is adapted to the shape of the filter connecting rod 43, and plays a role of shape adaptation and close cooperation. The end of the input water pipe 2 away from the vacuum negative pressure pump 1 is fixedly connected with the solenoid valve 49, and the end of the solenoid valve 49 away from the input water pipe 2 is fixedly connected with a sewage receiving pipe 410;

[0038] The fastening assembly includes a first connecting piece 51, and the outer surface of one end of the input water pipe 2 close to the vacuum negative pressure pump 1 is fixedly connected with the first connecting piece 51, and the water inlet of the vacuum negative pressure pump 1 is fixedly connected with a second connecting piece 52. The first connecting piece 51 and the second connecting piece 52 are circularly and equidistantly arranged inside and threadedly connected with screws 53. A first thorn-shaped gasket 54 is sleeved between the top of the screw 53 and the first connecting piece 51, and the bite between the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 is The ratio of the closing angle to the lead angle of the screw 53 thread is two to three, and the ratio of the lift of the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 to the lift of the screw 53 is two to three, so that when the screw 53 is loose, the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 can tighten it. The second thorn-shaped gasket 55 is sleeved on the surface of the screw 53 and located above the first thorn-shaped gasket 54. The surfaces of the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 are both arranged in a circular shape with tooth grooves 56 at equal intervals.

[0039] The working principle of the present invention in combination with the above is as follows:

[0040] The following is the initial state: the metal spring 45 is not tightened, the electric control telescopic plate 47 is not contracted, the filter connecting rod 43 close to the electric control telescopic plate 47 is located in the middle of the slot 48, the solenoid valve 49 is in the open state, and the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 are not completely fitted.

[0041] The following are the specific steps of the work:

[0042] The operator first places the sewage receiving pipe 410 into the position where sewage needs to be extracted, and then manually operates the external controller, and makes the external controller electrically control the vacuum negative pressure pump 1 to start. As the vacuum negative pressure pump 1 starts, the negative pressure generated by the vacuum negative pressure pump 1 causes the sewage to flow from the sewage receiving pipe 410 through the solenoid valve 49, the input water pipe 2, the inside of the vacuum negative pressure pump 1, and finally enter the external sewage storage tank through the output water pipe 3.

[0043] Among them, filtering impurities in sewage and automatically replacing the filter connecting rod 43:

[0044] As sewage continues to enter the input water pipe 2, paper, plastic fragments, grease and other substances in the sewage gradually adhere to the surface of the filter connecting rod 43 in the input water pipe 2. As impurities continue to adhere to the surface of the filter connecting rod 43, the pores on the surface of the filter connecting rod 43 that allow sewage to pass through gradually decrease.

[0045] When the surface of the filter connecting rod 43 is completely blocked by impurities, the sewage cannot continue to flow through the filter connecting rod 43 toward the vacuum negative pressure pump 1, and the pressure upstream of the filter connecting rod 43 will increase. When the pressure exceeds a certain threshold, the sewage will exert a strong impact force on the surface of the filter connecting rod 43 in order to pass through the filter connecting rod 43.

[0046] like Figure 5 , Figure 6 and Figure 8 As shown, under the action of the impact force of the sewage, the filter connecting rod 43 will rotate in the tangential direction of the sewage movement, and at this time, the rotation of the filter connecting rod 43 drives the rotating disk 42 and the rectangular block 44 to rotate synchronously, and when the rectangular block 44 rotates, the three-axis somatosensory gimbal 46 will feel the movement trend of the rectangular block 44, and then the three-axis somatosensory gimbal 46 will send an electrical signal to the external controller, and the external controller will electrically control the contraction of the electric control telescopic plate 47 and the closing of the electric control solenoid valve 49. At this time, due to the closure of the solenoid valve 49, the input water pipe 2 is in a closed space, and with the contraction of the electric control telescopic plate 47, the filter connecting rod 43 can rotate within a certain range in the input water pipe 2.

[0047] like Figure 5 and Figure 6As shown, since the rectangular block 44 is a quadrilateral, during the rotation of the rotating disk 42, the rotating disk 42 drives the rectangular block 44 to rotate synchronously, and the metal spring 45 will be in a stretched state, and the rotation of the rectangular block 44 will drive the three-axis somatosensory gimbal 46 to rotate synchronously. At this time, the two corners of the rectangular block 44 will conflict with the metal spring 45 and push the metal spring 45 to open to the maximum state. As the blocked filter connecting rod 43 rotates, the impact of the sewage on the filter connecting rod 43 is alleviated, and the rotating disk 42 loses most of the external force. Further, under the elastic contraction of the metal spring 45, the rectangular block 4 The two corners of 4 will gradually fit with the metal spring sheet 45 due to the elastic contraction of the metal spring sheet 45. Further, under the limiting effect of the metal spring sheet 45, the rectangular block 44 will only rotate 90 degrees, and the filter connecting rod 43 that is not blocked by impurities will rotate to the position of the previous filter connecting rod 43. When the rectangular block 44 is stable, the three-axis somatosensory gimbal 46 is no longer subjected to the torque of rotation and will again send an electrical signal to the external controller, and the external controller will electrically control the extension of the electric control telescopic plate 47 and the opening of the electric control solenoid valve 49. When the filter connecting rod 43 is blocked, the filter connecting rod 43 will be greatly affected due to the obstruction of water flow. The tangential force of the filter screen connecting rod 43 drives the rotating disc 42 to rotate, and the rotation of the rotating disc 42 is restricted by the metal spring piece 45 on the rectangular block 44, so that during the rotation of the rotating disc 42, it is realized that it only rotates ninety degrees each time, and the filter screen is replaced accurately, thereby greatly improving the stability and efficiency of the filter assembly. This structure makes the filter screen replacement process more efficient and convenient. The restriction of the metal spring piece 45 on the rectangular block 44 reduces the mechanical movement and time consumption during the replacement process, and reduces the complexity of the operation, so that the filter assembly can respond to the demand for filter screen replacement more quickly. Further, this structure not only improves the work efficiency rate, and also helps to reduce the impact on the sewage treatment process caused by long-term shutdown. Secondly, because the automatic replacement of the filter connecting rod 43 is determined by the tangential force, this automated replacement method reduces the possibility of human intervention and misoperation, allowing the filter component to operate continuously and stably. In addition, automatic replacement of the filter can also help reduce the risk of clogging, thereby avoiding the problem of serious clogging of the filter due to inaccurate judgment or untimely cleaning caused by traditional cleaning methods. This structure can detect and deal with the filter clogging problem in time, ensuring that the system is always running in the best state, thereby greatly reducing the risk of clogging and improving the stability of the filter component.

[0048] In the process of the vacuum negative pressure pump 1 running, the screw 53 is prevented from falling off:

[0049] like Figures 1 to 3As shown, during the long-term operation of the vacuum negative pressure pump 1, the connection between the input water pipe 2 and the vacuum negative pressure pump 1 will vibrate due to the tangential force of the sewage, and then the screw 53 will vibrate at this time. The screw 53 will tend to loosen and rotate due to the vibration, but because the ratio of the engagement angle of the first spinous gasket 54 and the second spinous gasket 55 to the thread lead angle of the screw 53 is two to three, the first spinous gasket 54 and the second spinous gasket 55 will be subjected to a larger radial force component during the loosening of the screw 53, and this force component pushes the two first spinous gaskets 54 and the second spinous gaskets 55 toward each other, so that they gradually bite and fit completely.

[0050] According to the inclined plane principle, when an object slides on an inclined plane, there is a ratio between the force along the inclined plane and the force perpendicular to the inclined plane. This ratio is the friction coefficient of the inclined plane. Since the engagement angle of the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 is greater than the thread lead angle, when the screw 53 loosens, the friction coefficient between the inclined planes of the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 will increase. Then, under the same positive pressure, the friction force between the inclined planes of the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 will be greater, thereby more effectively resisting the loosening tendency of the screw 53.

[0051] In addition, the magnitude of the friction force depends on two factors: the positive pressure and the friction coefficient. The positive pressure mainly comes from the pre-tightening force of the screw 53 and the compression deformation between the first spinous gasket 54 and the second spinous gasket 55. Since the engagement angle of the first spinous gasket 54 and the second spinous gasket 55 is greater than the thread lead angle of the screw 53, during the loosening process of the screw 53, the extrusion force between the inclined surfaces of the first spinous gasket 54 and the second spinous gasket 55 will increase, thereby increasing the friction force. The increased friction force will resist the loosening trend of the bolt and keep the connection stable. At the same time, when the tooth groove 56 is in contact with the top of the screw 53 and the tooth groove 56 and the surface of the first connecting member 51, the friction between the first spinous gasket 54 and the first connecting member 51 and the friction between the second spinous gasket 55 and the top of the screw 53 increase due to the effect of its shape.

[0052] Furthermore, when the screw 53 is loosened, the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 will first contact the top of the screw 53 and the top surface of the first connecting member 51 and produce compression deformation, and this compression deformation not only increases the sealing of the connection, but also resists the loosening of the screw 53 by increasing the friction between the second thorn-shaped gasket 55 and the top of the screw 53 and the first thorn-shaped gasket 54 and the top of the first connecting member 51. As the screw 53 is further loosened, the friction between the second thorn-shaped gasket 55 and the top of the screw 53 and the first thorn-shaped gasket 54 and the top of the first connecting member 51 will further increase, and then the second thorn-shaped gasket 55 will further tighten the screw 53 under the action of the friction force, and further prevent the screw 53 from loosening.

[0053] More specifically, because the engagement angle of the two first thorn-shaped gaskets 54 and the second thorn-shaped gaskets 55 is greater than the thread lead angle of the screw 53, the interaction between the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 will produce a self-locking mechanism, so that the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 gradually bite and fit completely, and through the action of the inclined plane principle and friction force, the screw 53 can be effectively prevented from falling off during vibration and loosening. At the same time, the lift of the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 is greater than the lift of the screw 53, which also increases the sealing and tightness of the connection. When vibration occurs, the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 will bite each other, thereby effectively inhibiting the loosening of the screw 53. This structure not only improves the stability and safety of the filter assembly, but also avoids a series of problems caused by the falling off of the screw 53. First, the first thorn-shaped gasket 54 and the second thorn-shaped gasket 55 The two spine-shaped gaskets 55 significantly improve the sealing and stability of the connection. Through the bite action of the first spine-shaped gasket 54 and the second spine-shaped gasket 55, the first spine-shaped gasket 54 and the second spine-shaped gasket 55 can effectively resist the negative pressure and tangential force formed when the vacuum negative pressure pump 1 extracts sewage, and ensure that the connection always remains in a sealed state, thereby greatly reducing the risk of sewage overflowing from the connection, and further avoiding the environmental pollution and damage to surrounding equipment and buildings caused by sewage overflow. Secondly, due to the enhanced sealing of the connection, the possibility of sewage overflow is greatly reduced, thereby reducing the risk of sewage flowing into the interior of the equipment. Furthermore, this structure not only extends the service life of the equipment, but also avoids the maintenance and replacement costs caused by equipment corrosion, accelerated wear and electrical failure. This structure also avoids the threat to the health of surrounding personnel caused by sewage overflow by preventing the screws 53 from loosening or falling off.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum negative pressure water collection pipeline based on sewage recovery, comprising a vacuum negative pressure pump (1), an input water pipe (2) fixedly connected to the outer surface of the vacuum negative pressure pump (1), and an output water pipe (3) fixedly connected to the outer surface of the vacuum negative pressure pump (1), characterized in that: A filter assembly is arranged on the outside of the input water pipe (2) for preventing impurities contained in sewage from clogging the vacuum negative pressure pump (1) and the input water pipe (2); a fastening assembly is arranged above the vacuum negative pressure pump (1) for preventing the connection between the vacuum negative pressure pump (1) and the input water pipe (2) from loosening when the vacuum negative pressure pump (1) is working; The filter assembly comprises a filter housing (41), the filter housing (41) being fixedly connected to the outer surface of the input water pipe (2), a rotating disc (42) being rotatably connected to the inner wall of the filter housing (41), filter screen connecting rods (43) being fixedly connected to the outer surface of the rotating disc (42) in an annular and equidistant arrangement, a rectangular block (44) being fixedly connected to the top of the rotating disc (42), a metal spring (45) being fixedly connected to the inner wall of the filter housing (41), and the filter housing (41) A three-axis somatosensory gimbal (46) is fixedly connected between the top of the inner cavity and the top of the rectangular block (44); an electric-controlled telescopic plate (47) is symmetrically fixedly connected to the inner wall of the input water pipe (2); a through groove (48) is provided through the outer surface of the telescopic shaft of the electric-controlled telescopic plate (47); an end of the input water pipe (2) away from the vacuum negative pressure pump (1) is fixedly connected to an electromagnetic valve (49); and an end of the electromagnetic valve (49) away from the input water pipe (2) is fixedly connected to a sewage receiving pipe (410); The fastening assembly comprises a first connecting piece (51), the first connecting piece (51) is fixedly connected to the outer surface of one end of the input water pipe (2) close to the vacuum negative pressure pump (1), the second connecting piece (52) is fixedly connected to the water inlet of the vacuum negative pressure pump (1), the first connecting piece (51) and the second connecting piece (52) are internally arranged in an annular manner and threadedly connected with screws (53), a first thorn-shaped gasket (54) is sleeved between the top of the screw (53) and the first connecting piece (51), a second thorn-shaped gasket (55) is sleeved on the surface of the screw (53) and located above the first thorn-shaped gasket (54), and the surfaces of the first thorn-shaped gasket (54) and the second thorn-shaped gasket (55) are both arranged in an annular manner and equidistantly provided with tooth grooves (56).

2. A vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1, characterized in that: The three-axis somatosensory gimbal (46) is electrically connected to an external controller, the extension and retraction of the electrically controlled telescopic plate (47) is electrically controlled by the external controller, and the activation and deactivation of the electromagnetic valve (49) is electrically controlled by the external controller.

3. A vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1, characterized in that: The ratio of the engagement angle between the first thorn-shaped gasket (54) and the second thorn-shaped gasket (55) to the lead angle of the screw thread (53) is 2:3, and the ratio of the lift of the first thorn-shaped gasket (54) and the second thorn-shaped gasket (55) to the lift of the screw (53) is 2:

3.

4. A vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1, characterized in that: The shape of the electrically controlled telescopic plate (47) is adapted to the shape of the inner wall of the water input pipe (2).

5. The vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1 is characterized by: The vacuum negative pressure pump (1) is electrically controlled to start and stop by an external controller.

6. A vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1, characterized in that: The output water pipe (3) is fixedly connected to an external sewage storage tank.

7. The vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1 is characterized by: The shape of the metal spring sheet (45) matches the shape of the rectangular block (44).

8. The vacuum negative pressure water collection pipeline based on sewage recovery according to claim 1 is characterized by: The shape of the through slot (48) is adapted to the shape of the filter connecting rod (43).

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