Vertical shaft bulb tubular pump unit

Abstract

The invention relates to the technical field of tubular pumps, and discloses a vertical shaft bulb tubular pump unit which comprises a main body assembly, a tubular pump body is included, a fixing sleeve is fixed to one side of the tubular pump body, mounting frames are arranged in the fixing sleeve, filter screens are arranged in the mounting frames, the number of the filter screens and the number of the mounting frames are both two, and the filter screens and the mounting frames are located on the two sides of the interior of the fixing sleeve correspondingly; the switching assembly is arranged in the fixing sleeve and comprises a rotating piece, and the rotating piece comprises a rotating plate. Through the arrangement of the two filter screens, the filtering effect on impurities in water can be improved, so that the situation that the impurities in the water are attached to the surface of the impeller is avoided, through the arrangement of the switching assembly, after the filter screen severely blocked on the outer side is replaced, the newly-replaced filter screen can be switched to the position close to the impeller, and the replacement efficiency is improved. And a new filter screen is always arranged at the position close to the impeller, so that the filtering effect on impurities in water can be effectively maintained.

Description

Technical Field

[0001] The invention relates to the technical field of tubular pumps, in particular to a vertical shaft bulb tubular pump unit. Background Art

[0002] The shaft bulb cross-flow pump is a special water pump device. Its main structural feature is that the motor is installed in the bulb body, the water pump impeller is cross-flow type, and the water flows basically along the axial direction from the inlet to the outlet. This type of pump has the characteristics of large flow and relatively low head. It is suitable for occasions requiring large flow water delivery. To prevent impurities in the water from being entangled on the impeller, a filter will be installed at the water inlet of the cross-flow pump. The water flow speed at the water inlet is often relatively fast. The strong impact of the water flow will make it difficult for impurities to stay on the filter, especially some smaller particulate impurities, which will easily pass through the filter under the influence of the water flow and cannot be effectively filtered. As a result, the impurities that are not filtered out will enter the water pump and will produce friction with the impeller surface as the impeller rotates. Long-term friction will cause wear of the impeller blades and increase the surface roughness of the impeller, thereby affecting the hydraulic performance of the impeller. If multiple filters are installed, the replacement of the filters will be inconvenient. Summary of the invention

[0003] In view of the above problems existing in the existing vertical shaft bulb tubular pump unit, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that the filtering effect of the single-channel filter is poor, the impurities in the water cannot be effectively filtered, and the replacement of the filter is not convenient enough.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a vertical shaft bulb flow pump unit, comprising a main body assembly, including a flow pump body, a fixed sleeve is fixed on one side of the flow pump body, an installation frame is arranged in the fixed sleeve, a filter screen is arranged in the installation frame, and the number of the filter screen and the installation frame are both two, which are respectively located on both sides of the fixed sleeve.

[0006] A switching assembly is arranged in the fixed sleeve, including a rotating part, and the rotating part includes a rotating plate, and the rotating plate is rotatably connected to the inner wall of the fixed sleeve through a rotating shaft, one side of the rotating plate is rotatably connected to a connecting rod through a rotating shaft, and a connecting block is fixed to one side of the mounting frame, a guide shaft is arranged in the connecting block, one end of the connecting rod is rotatably connected to the outer side of the guide shaft through a bearing, a sliding groove is provided in the fixed sleeve, and the guide shaft slides in the sliding groove, and an annular groove is provided in the fixed sleeve, and the annular groove is connected to the sliding groove, and a rotating column is fixed in the rotating plate, and one end of the rotating column passes through the outer side of the fixed sleeve.

[0007] An interception component is arranged in the fixed sleeve, including an interception member, and the interception member includes a baffle. A movable groove is opened in the fixed sleeve, and the baffle is located in the movable groove. A positioning shaft is fixed to the inner wall of the movable groove. The baffle is movably connected to the outer side of the positioning shaft, and a first torsion spring is fixed to the outer side of the positioning shaft. One end of the first torsion spring is fixed to the inner side of the baffle. A drainage hole is opened on the fixed sleeve.

[0008] As a preferred solution of the vertical shaft bulb cross-flow pump unit described in the present invention, the intercepting component also includes a sealing part, the sealing part includes a sealing plate, a first chamber is opened in the fixed sleeve, the sealing plate is located in the first chamber and coincides with the drainage hole, a force-bearing plate is fixed on one side of the sealing plate, a positioning rod is fixed on one side of the sealing plate, a positioning sleeve is fixed on the inner wall of the first chamber, a sealing block is fixed on the end of the positioning rod, a first spring is fixed on the inner wall of the positioning sleeve, a ventilation groove is opened on one side of the positioning sleeve, a block is arranged on one side of the positioning sleeve, and a ventilation hole is opened on the block.

[0009] As a preferred solution of the shaft bulb cross-flow pump unit described in the present invention, the intercepting component also includes a blocking member, the blocking member includes a limit block, a slot is opened on the fixing sleeve, the limit block is inserted into the slot, and one side is in contact with the baffle, a second spring is fixed to one side of the limit block, and the other end of the second spring is fixed to the inner wall of the slot, a force rod is fixed to one side of the limit block, and a fixing rod is fixed to the other side of the limit block, and one side of the fixing rod is in contact with the baffle.

[0010] As a preferred solution of the vertical shaft bulb cross-flow pump unit described in the present invention, the intercepting component also includes a locking piece, the locking piece includes a limit column, the limit column is inserted into the baffle, a limit hole corresponding to the limit column is provided on the positioning shaft, a mounting block is fixed to one end of the limit column, a third spring is fixed to one side of the mounting block, a second chamber is provided in the baffle, the other end of the third spring is fixed to the inner wall of the second chamber, a push rod is inserted into one side of the baffle, and a force groove is provided on the mounting block.

[0011] As a preferred solution of the vertical shaft bulb cross-flow pump unit described in the present invention, wherein: the switching component also includes a limit member, the limit member includes a limit plate, the fixed sleeve is provided with a groove, the limit plate is located in the groove, a stabilizing shaft is fixed to the inner wall of the groove, the limit plate is movably connected to the outer side of the stabilizing shaft, the outer side of the stabilizing shaft is provided with a second torsion spring, and the two ends of the second torsion spring are respectively fixed to the stabilizing shaft and the limit plate.

[0012] As a preferred solution of the shaft bulb cross-flow pump unit described in the present invention, the switching assembly also includes a locking piece, the locking piece includes a support block, the support block is fixed to one side of the fixed sleeve, a plug rod is inserted in the support block, a socket is provided on the rotating column, the plug rod is inserted in the socket, a mounting plate is fixed to the top of the plug rod, a fifth spring is fixed to the bottom of the mounting plate, and the bottom end of the fifth spring is fixed to the support block.

[0013] As a preferred solution of the vertical shaft bulb cross-flow pump unit described in the present invention, the main body component also includes a connecting piece, the connecting piece includes a clamping block, a third chamber is opened in the installation frame, the clamping block is located in the third chamber, a clamping groove is opened on the filter net, the clamping block is engaged with the clamping groove, and a fourth spring is fixed to one side of the clamping block.

[0014] As a preferred solution of the shaft bulb cross-flow pump unit described in the present invention, a through groove is opened on the block, a force-bearing block is fixed to the inner wall of the through groove, a moving rod is movably connected in the installation frame, and an extrusion block is fixed to one side of the moving rod.

[0015] As a preferred solution of the shaft bulb tubular pump unit of the present invention, a connecting rope is fixed to the end of the moving rod, and the connecting rope is movably connected to the installation frame.

[0016] As a preferred solution of the shaft bulb cross-flow pump unit described in the present invention, a handle is fixed to the end of the rotating column.

[0017] The beneficial effects of the present invention are as follows: by setting up two filter screens, the filtering effect on impurities in the water can be improved, thereby preventing impurities in the water from adhering to the surface of the impeller. By setting up a switching component, after the filter screen with severe blockage on the outside is replaced, the newly replaced filter screen can be switched to a position close to the impeller, so that the position close to the impeller is always a new filter screen, thereby effectively maintaining the filtering effect on impurities in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is the overall structural diagram of the vertical shaft bulb cross-flow pump unit.

[0019] Figure 2 This is the fixed sleeve structure diagram of the vertical shaft bulb cross-flow pump unit.

[0020] Figure 3 For shaft bulb tubular pump unit Figure 2 A partial enlarged structural diagram in the middle.

[0021] Figure 4 This is a partial cross-sectional structural diagram of the installation frame of the vertical shaft bulb cross-flow pump unit.

[0022] Figure 5 Another cross-sectional structural diagram is applied to the installation frame of the vertical shaft bulb cross-flow pump unit.

[0023] Figure 6 For shaft bulb tubular pump unit Figure 5 A partial enlarged structural diagram of point B in the middle.

[0024] Figure 7 This is a side view cross-sectional structural diagram of the fixed sleeve of the vertical shaft bulb cross-flow pump unit.

[0025] Figure 8 For shaft bulb tubular pump unit Figure 7 A partial enlarged structural diagram of point C in the middle.

[0026] Fig. 9 For shaft bulb tubular pump unit Figure 7 A partial enlarged structural diagram of point D in the middle.

[0027] Fig.10 This is a partial cross-sectional structural diagram of the side view of the fixed sleeve of the vertical shaft bulb cross-flow pump unit.

[0028] Fig.11 For shaft bulb tubular pump unit Fig.10 A partial enlarged structural diagram at point E in the middle.

[0029] Fig.12 This is a partial cross-sectional structural diagram of the edge of the fixed sleeve of the vertical shaft bulb cross-flow pump unit.

[0030] Fig.13 For shaft bulb tubular pump unit Fig.12 A partial enlarged structural diagram of point F in the middle.

[0031] Fig.14 This is a partial cross-sectional structural diagram of the baffle of the vertical shaft bulb cross-flow pump unit.

[0032] In the figure: 100 main assembly, 101 through-flow pump body, 102 fixing sleeve, 103 mounting frame, 104 filter screen, 200 switching assembly, 201 rotating member, 201a rotating plate, 201b connecting rod, 201c connecting block, 201d guide shaft, 102-1 slide groove, 102-2 annular groove, 201e rotating column, 300 interception assembly, 301 interception member, 301a baffle, 10 2-3 movable groove, 301b positioning shaft, 301c first torsion spring, 102-4 drainage hole, 302 blocking member, 302a blocking plate, 102-5 first chamber, 302b force plate, 302c positioning rod, 302d positioning sleeve, 302e sealing block, 302f first spring, 302d-1 ventilation groove, 302g stopper, 302g-1 ventilation hole, 303 blocking member, 303a limiting Block, 102-6 slot, 303b second spring, 303c force rod, 303d fixed rod, 304 locking piece, 304a limit column, 301b-1 limit hole, 304b mounting block, 304c third spring, 301a-1 second chamber, 304d push rod, 304b-1 force groove, 202 limit piece, 202a limit plate, 102-7 groove, 202b stabilizing shaft, 202c second torsion spring, 203 locking piece, 203a supporting block, 203b inserting rod, 201e-1 inserting hole, 203c mounting plate, 203d fifth spring, 105 connecting piece, 105a card block, 103-1 third chamber, 104-1 card slot, 105b fourth spring, 105-1 through slot, 105c force block, 105d moving rod, 105e extrusion block, 105f connecting rope. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example 1 Reference Figure 1-Figure 8, which is the first embodiment of the present invention, and this embodiment provides a shaft bulb cross-flow pump unit. The shaft bulb cross-flow pump unit includes a main component 100, including a cross-flow pump body 101, a fixing sleeve 102 is fixed on one side of the cross-flow pump body 101, a mounting frame 103 is arranged in the fixing sleeve 102, a filter screen 104 is arranged in the mounting frame 103, and the number of the filter screen 104 and the mounting frame 103 are both two, which are respectively located on both sides of the inside of the fixing sleeve 102.

[0037] The installation frame 103 is used to install and position the filter 104. Through the setting of two filters 104, under the same water inlet flow rate, impurities have more opportunities and space to deposit on the filter 104, thereby improving the ability to intercept impurities. Even if the first filter 104 is partially blocked, the second filter 104 can still play a role and filter the impurities that have not been intercepted again, thereby reducing the probability of impurities passing through.

[0038] The inside of the crossflow pump body 101 is provided with a motor, an impeller, a pump shaft, and a guide vane body (not shown in the figure), which are combined into a crossflow pump unit. This is the prior art and will not be elaborated in this solution.

[0039] Specifically, the switching assembly 200 is arranged in the fixed sleeve 102, and includes a rotating member 201. The rotating member 201 includes a rotating plate 201a. The rotating plate 201a is rotatably connected to the inner wall of the fixed sleeve 102 through a rotating shaft. One side of the rotating plate 201a is rotatably connected to a connecting rod 201b through a rotating shaft. A connecting block 201c is fixed to one side of the mounting frame 103. A guide shaft 201d is arranged in the connecting block 201c. One end of the connecting rod 201b is rotatably connected to the outer side of the guide shaft 201d through a bearing. A sliding groove 102-1 is provided in the fixed sleeve 102, and the guide shaft 201d slides in the sliding groove 102-1. An annular groove 102-2 is provided in the fixed sleeve 102, and the annular groove 102-2 is connected to the sliding groove 102-1. A rotating column 201e is fixed in the rotating plate 201a, and one end of the rotating column 201e passes through the outer side of the fixed sleeve 102.

[0040] There are two groups of rotating members 201, which are respectively located at two sides of the fixing sleeve 102. The two groups of rotating members 201 drive the two sides of the installation frame 103 to move simultaneously, thereby preventing the installation frame 103 from tilting during movement.

[0041] There are two connecting rods 201b in a set of rotating parts 201, which are respectively located at the two ends of the rotating plate 201a. The connecting block 201c is connected to the connecting rod 201b through the guide shaft 201d. One end of the rotating column 201e passes through the outside of the fixed sleeve 102 and is movably connected to the inside of the fixed sleeve 102.

[0042] When replacing the filter 104, only the outer filter 104 needs to be replaced. Since the inner filter 104 is exposed to fewer impurities, its clogging is relatively minor.

[0043] After the outer filter 104 is replaced, the rotating column 201e is rotated to drive the rotating plate 201a to rotate, so that the rotating plate 201a pulls the connecting rod 201b and the guide shaft 201d to move, so that the guide shaft 201d slides in the slide groove 102-1, and drives the installation frame 103 to move through the connecting block 201c. At this time, the two installation frames 103 will move toward the center of the fixed sleeve 102.

[0044] When the guide shaft 201d moves to the inside of the annular groove 102-2, as the rotating plate 201a continues to rotate, the two installation frames 103 can be rotated. When the two installation frames 103 rotate 180°, the two installation frames 103 will switch positions. Then, the rotating column 201e and the rotating plate 201a are rotated in the opposite direction, so that the rotating plate 201a pushes the guide shaft 201d at the switching position to move into the sliding groove 102-1, thereby moving the installation frames 103 and the filter screens 104 at the two switching positions to the installation position, and completing the switching of the positions of the two filter screens 104.

[0045] The newly replaced filter 104 is located close to the impeller, and the slightly clogged filter 104 is located on the outside, so that it can continue to play a filtering role and make full use of its remaining filtering capacity. This can avoid frequent replacement of the outer filter 104 and the inner filter being discarded without being fully utilized, thereby extending the total service life of the two filters.

[0046] And the newly replaced filter 104 is installed in a position close to the impeller. Since there is partially filtered water flowing in front of it, the pressure of impurity impact and clogging it will be relatively small. This allows the newly replaced filter 104 to maintain good filtering performance for a period of time, prolonging its effective working time near the impeller, and further optimizing the protection of the impeller of the through-flow pump.

[0047] Specifically, the interception component 300 is arranged in the fixed sleeve 102, and includes an interception member 301, the interception member 301 includes a baffle 301a, a movable groove 102-3 is opened in the fixed sleeve 102, the baffle 301a is located in the movable groove 102-3, a positioning shaft 301b is fixed to the inner wall of the movable groove 102-3, the baffle 301a is movably connected to the outer side of the positioning shaft 301b, a first torsion spring 301c is fixed to the outer side of the positioning shaft 301b, one end of the first torsion spring 301c is fixed to the inner side of the baffle 301a, and a drainage hole 102-4 is opened on the fixed sleeve 102.

[0048] There are two groups of intercepting members 301, which are located on both sides of the fixed sleeve 102 respectively. The positioning shaft 301b is used to support the baffle 301a. When the mounting frame 103 and the filter screen 104 in the switching position stop moving, the first torsion spring 301c will apply a torsional force to the baffle 301a and rotate the baffle 301a to an angle parallel to the mounting frame 103. At this time, when the water flows into the fixed sleeve 102 and washes the outer filter screen 104, since the outer filter screen 104 is flipped 180° when in the switching position, the water flows on the filter screen 104 to backwash it, which can effectively alleviate the blockage of the filter screen 104 and extend its service life.

[0049] During the backwashing process, the backwashing water flow is intercepted by the baffle 301a to prevent the backwashing water from directly washing the inner filter 104, thereby causing the newly replaced inner filter 104 to be blocked before it is used.

[0050] The backwash water will be discharged to the outside of the fixed sleeve 102 through the drainage hole 102 - 4 , and there are multiple drainage holes 102 - 4 .

[0051] Example 2 Reference Figure 3-Figure 14 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0052] Specifically, the intercepting component 300 also includes a sealing member 302, which includes a sealing plate 302a. A first chamber 102-5 is opened in the fixed sleeve 102. The sealing plate 302a is located in the first chamber 102-5 and overlaps with the drainage hole 102-4. A force plate 302b is fixed to one side of the sealing plate 302a, and a positioning rod 302c is fixed to one side of the sealing plate 302a. A positioning sleeve 302d is fixed to the inner wall of the first chamber 102-5, a sealing block 302e is fixed to the end of the positioning rod 302c, a first spring 302f is fixed to the inner wall of the positioning sleeve 302d, a ventilation groove 302d-1 is opened on one side of the positioning sleeve 302d, a stopper 302g is arranged on one side of the positioning sleeve 302d, and a ventilation hole 302g-1 is opened on the stopper 302g.

[0053] The number of the blocking pieces 302 corresponds to the drainage holes 102 - 4 , and the blocking plates 302 a are used to block the drainage holes 102 - 4 to prevent water from flowing out through the drainage holes 102 - 4 during normal use.

[0054] One side of the force-bearing plate 302b extends to the outside of the first chamber 102-5 and is movably connected to the fixed sleeve 102. When the outer mounting frame 103 moves initially, it will contact the force-bearing plate 302b and push the force-bearing plate 302b to move, so that the force-bearing plate 302b drives the blocking plate 302a to move, thereby separating the blocking plate 302a from the drainage hole 102-4 and releasing the blockage of the drainage hole 102-4.

[0055] The sealing block 302e is fitted with the inner wall of the positioning sleeve 302d, and is used to increase the sealing between the positioning rod 302c and the positioning sleeve 302d. The stopper 302g is located on one side of the air permeable groove 302d-1, and is used to block the air permeable groove 302d-1. The stopper 302g is hinged to the positioning sleeve 302d through a hinge plate, and an elastic sheet is installed on the hinge plate, so that the stopper 302g can always have an elastic force to fit the positioning sleeve 302d.

[0056] When the blocking plate 302a moves, it will drive the positioning rod 302c to move into the positioning sleeve 302d. At this time, the airflow generated by the movement of the positioning rod 302c will push the block 302g to open through the air permeable groove 302d-1, so as not to hinder the movement of the positioning rod 302c, and thus the blocking plate 302a can be quickly separated from the drainage hole 102-4.

[0057] When the mounting frame 103 is separated from the force-bearing plate 302b, the first spring 302f applies a thrust to the sealing block 302e and the positioning rod 302c. When the positioning rod 302c moves toward the outside of the positioning sleeve 302d, the stopper 302g will block the air vent 302d-1 again. At this time, air can only enter the interior of the positioning sleeve 302d through the air vent 302g-1. Since the diameter of the air vent 302g-1 is small, a negative pressure is formed between the sealing block 302e and the positioning sleeve 302d, so that the sealing block 302e and the positioning rod 302c can slowly move to the initial position, thereby enabling the sealing plate 302a to delay the blocking of the drain hole 102-4, so that there is enough time to backwash the outer filter screen 104.

[0058] Specifically, the interception component 300 also includes a blocking member 303, which includes a limit block 303a. A slot 102-6 is opened on the fixed sleeve 102. The limit block 303a is inserted into the slot 102-6, and one side is in contact with the baffle 301a. A second spring 303b is fixed to one side of the limit block 303a, and the other end of the second spring 303b is fixed to the inner wall of the slot 102-6. A force rod 303c is fixed to one side of the limit block 303a, and a fixed rod 303d is fixed to the other side of the limit block 303a, and one side of the fixed rod 303d is in contact with the baffle 301a.

[0059] The number of blocking members 303 corresponds to that of intercepting members 301. One side of the limit block 303a is inclined. The force-bearing rod 303c is elastic. The limit block 303a limits the baffle 301a to prevent the baffle 301a from rotating during normal use.

[0060] When the inner mounting frame 103 moves, it contacts the force-bearing rod 303c and applies a thrust to the force-bearing rod 303c. At this time, the fixing rod 303d contacts the baffle 301a, thereby preventing the limit block 303a from moving. When the force-bearing rod 303c is subjected to the thrust, it bends, thereby not hindering the movement of the mounting frame 103.

[0061] When the installation frame 103 moves toward the direction of the through-flow pump body 101 after switching the position, it will contact the force-bearing rod 303c again. At this time, the installation frame 103 will push the force-bearing rod 303c and the limit block 303a to move, so that the limit block 303a can release the restriction on the baffle 301a, allowing the baffle 301a to rotate and block the cleaned water.

[0062] When the fixing rod 303d contacts the inner wall of the movable groove 102-3, the movement of the limit block 303a is restricted again. When the installation frame 103 continues to move, the force-bearing rod 303c is bent again without hindering the normal movement of the installation frame 103.

[0063] At this time, the limit block 303a can be reset by the second spring 303b. When the baffle 301a rotates into the movable groove 102-3, it will contact the inclined surface of the limit block 303a and push the limit block 303a to move, so that the baffle 301a can be reset and limited by the limit block 303a. The elasticity of the force-bearing rod 303c is greater than that of the second spring 303b.

[0064] Specifically, the interception component 300 also includes a locking piece 304, which includes a limiting column 304a, which is inserted into the baffle 301a, and a limiting hole 301b-1 corresponding to the limiting column 304a is provided on the positioning shaft 301b, a mounting block 304b is fixed to one end of the limiting column 304a, and a third spring 304c is fixed to one side of the mounting block 304b, a second chamber 301a-1 is provided in the baffle 301a, and the other end of the third spring 304c is fixed to the inner wall of the second chamber 301a-1, a push rod 304d is inserted into one side of the baffle 301a, and a force groove 304b-1 is provided on the mounting block 304b.

[0065] When the baffle 301a rotates to an angle parallel to the mounting frame 103, the third spring 304c applies a pulling force to the mounting block 304b, and the mounting block 304b drives the limiting column 304a to move, so that the limiting column 304a engages with the limiting hole 301b-1. The cooperation of the two can lock the baffle 301a in the current state, thereby preventing the baffle 301a from rotating to one side when subjected to the thrust of the water flow.

[0066] The inner wall of the force bearing groove 304b-1 is inclined, one end of the push rod 304d extends to the outside of the baffle 301a, and one side of the end located on the outside is inclined (not shown in the figure).

[0067] When the baffle 301a rotates to an angle parallel to the mounting frame 103, the end of the push rod 304d will be close to the force-bearing plate 302b. When the blocking plate 302a slowly moves toward the position of the drainage hole 102-4, the force-bearing plate 302b will be driven to approach the end of the push rod 304d. When the blocking plate 302a is about to completely block the drainage hole 102-4, the force-bearing plate 302b will contact the inclined surface of the end of the push rod 304d and push the push rod 304d to move, so that the other end of the push rod 304d is squeezed against the inclined surface of the inner wall of the force-bearing groove 304b-1. The mounting block 304b and the limiting column 304a are driven to move through the cooperation of the two, so that the limiting column 304a can be separated from the limiting hole 301b-1 and the restriction on the baffle 301a can be released. At this time, the baffle 301a can be rotated to the initial position when it is thrust by the water flow.

[0068] Specifically, the switching component 200 also includes a limit member 202, the limit member 202 includes a limit plate 202a, a groove 102-7 is opened on the fixed sleeve 102, the limit plate 202a is located in the groove 102-7, a stabilizing shaft 202b is fixed to the inner wall of the groove 102-7, the limit plate 202a is movably connected to the outer side of the stabilizing shaft 202b, and a second torsion spring 202c is provided on the outer side of the stabilizing shaft 202b, and the two ends of the second torsion spring 202c are respectively fixed to the stabilizing shaft 202b and the limit plate 202a.

[0069] The groove 102-7 is connected to the slide groove 102-1, and one side of the limit plate 202a contacts the inner wall of the groove 102-7. The limit plate 202a can only rotate in one direction, and the moving trajectory of the guide shaft 201d is limited by the limit plate 202a.

[0070] When the guide shaft 201d first moves from the inside of the slide groove 102-1 to the inside of the annular groove 102-2 and rotates, the guide shaft 201d will not be obstructed. When the rotating plate 201a rotates 180° and needs to rotate in the opposite direction, the guide shaft 201d can be limited by the limiting plate 202a so that the guide shaft 201d will not move in the annular groove 102-2 along the original path, but can move into the slide groove 102-1.

[0071] The stabilizing shaft 202b is used to position the limiting plate 202a, and the second torsion spring 202c is used to apply a torsional force to the limiting plate 202a so that the limiting plate 202a can be reset after being rotated.

[0072] Specifically, the switching assembly 200 also includes a locking member 203, which includes a support block 203a, the support block 203a is fixed to one side of the fixed sleeve 102, an insertion rod 203b is inserted in the support block 203a, a socket 201e-1 is provided on the rotating column 201e, the insertion rod 203b is inserted in the socket 201e-1, a mounting plate 203c is fixed to the top of the insertion rod 203b, a fifth spring 203d is fixed to the bottom of the mounting plate 203c, and the bottom end of the fifth spring 203d is fixed to the support block 203a.

[0073] The support block 203a is used to support the insertion rod 203b. When the insertion rod 203b is engaged with the socket 201e-1, the rotation column 201e can be locked through the cooperation of the two, so that it cannot rotate, thereby preventing the installation frame 103 from moving during use.

[0074] The fifth spring 203d is used to apply a pulling force to the mounting plate 203c, and drive the insertion rod 203b to move through the mounting plate 203c, so that the insertion rods 203b and the insertion rods 203b are more tightly engaged.

[0075] Example 3 Reference Figure 1-Figure 14 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0076] Specifically, the main component 100 also includes a connecting member 105, the connecting member 105 includes a clamping block 105a, a third chamber 103-1 is opened in the installation frame 103, the clamping block 105a is located in the third chamber 103-1, a clamping slot 104-1 is opened on the filter 104, the clamping block 105a is engaged with the clamping slot 104-1, and a fourth spring 105b is fixed to one side of the clamping block 105a.

[0077] There is a fixed frame outside the filter screen 104, and the slot 104-1 is opened on the fixed frame, and the fixed frame and the filter screen are integrated.

[0078] There are four groups of connecting parts 105 in an installation frame 103. One side of the block 105a is inclined. When the filter 104 is inserted into the installation frame 103, the fourth spring 105b applies a thrust to the block 105a, so that the block 105a is engaged with the slot 104-1. The filter 104 and the installation frame 103 can be locked by the combination of the two, thereby completing the installation of the filter 104.

[0079] Specifically, a through slot 105 - 1 is formed on the clamping block 105 a , a force bearing block 105 c is fixed to the inner wall of the through slot 105 - 1 , a moving rod 105 d is movably connected in the installation frame 103 , and an extrusion block 105 e is fixed to one side of the moving rod 105 d .

[0080] One side of the force block 105c and the extrusion block 105e are both inclined, and the inclined surfaces of the two are in contact. A push block is fixed to one side of the moving rod 105d. The push block extends to the outside of the installation frame 103 and can move on one side of the installation frame 103.

[0081] When the filter 104 needs to be replaced, the push block drives the moving rod 105d to move, so that the moving rod 105d drives the squeezing block 105e to squeeze the inclined surface of the force-bearing block 105c. The cooperation of the two drives the clamping block 105a to move, so that the clamping block 105a is separated from the clamping slot 104-1, thereby releasing the lock on the filter 104 and allowing the filter 104 to be replaced.

[0082] Specifically, a connecting rope 105f is fixed to the end of the moving rod 105d, and the connecting rope 105f is movably connected to the installation frame 103.

[0083] The four moving rods 105d are connected by four connecting ropes 105f, so that the movement of one moving rod 105d can drive the other three moving rods 105d to move simultaneously.

[0084] Specifically, a handle is fixed to the end of the rotating column 201e.

[0085] The handle can facilitate the user to rotate the rotating column 201e.

[0086] During use, when the filter 104 needs to be replaced, the push block drives the moving rod 105d to move, so that the moving rod 105d drives the squeezing block 105e to squeeze the inclined surface of the force-bearing block 105c, and the two cooperate to drive the clamping block 105a to move, so that the clamping block 105a is separated from the clamping slot 104-1, so that the filter 104 can be unlocked and the filter 104 can be replaced.

[0087] When the filter 104 is replaced, the rotating column 201e is rotated to drive the rotating plate 201a to rotate, so that the rotating plate 201a pulls the connecting rod 201b and the guide shaft 201d to move, so that the guide shaft 201d slides in the slide groove 102-1, and drives the installation frame 103 to move through the connecting block 201c. At this time, the two installation frames 103 will move toward the center of the fixed sleeve 102.

[0088] When the guide shaft 201d moves to the inside of the annular groove 102-2, as the rotating plate 201a continues to rotate, the two installation frames 103 can be rotated. When the two installation frames 103 rotate 180°, the two installation frames 103 will switch positions. Then, the rotating column 201e and the rotating plate 201a are rotated in the opposite direction, so that the rotating plate 201a pushes the guide shaft 201d at the switching position to move into the sliding groove 102-1, thereby moving the installation frames 103 and the filter screens 104 at the two switching positions to the installation position, and completing the switching of the positions of the two filter screens 104.

[0089] The newly replaced filter 104 is located close to the impeller, and the slightly clogged filter 104 is located on the outside, so that it can continue to play a filtering role and make full use of its remaining filtering capacity. This can avoid frequent replacement of the outer filter 104 and the inner filter being discarded without being fully utilized, thereby extending the total service life of the two filters.

[0090] And the newly replaced filter 104 is installed in a position close to the impeller. Since there is partially filtered water flowing in front of it, the pressure of impurity impact and clogging it will be relatively small. This allows the newly replaced filter 104 to maintain good filtering performance for a period of time, prolonging its effective working time near the impeller, and further optimizing the protection of the impeller of the through-flow pump.

[0091] When the outer mounting frame 103 initially moves, it contacts the force-bearing plate 302b and pushes the force-bearing plate 302b to move, so that the force-bearing plate 302b drives the blocking plate 302a to move, thereby separating the blocking plate 302a from the drainage hole 102-4 and releasing the blockage of the drainage hole 102-4.

[0092] When the installation frame 103 after the switching position moves toward the direction of the throughflow pump body 101, it will contact the force-bearing rod 303c. At this time, the installation frame 103 will push the force-bearing rod 303c and the limit block 303a to move, so that the limit block 303a can release the restriction on the baffle 301a. At this time, the first torsion spring 301c will apply a torsional force to the baffle 301a and rotate the baffle 301a to an angle parallel to the installation frame 103. At this time, when the water flow enters the fixed sleeve 102 and washes on the outer filter screen 104, since the outer filter screen 104 is flipped 180° when the switching position is reached, the water flow washes on the filter screen 104 to backwash it, thereby effectively alleviating the blockage of the filter screen 104 and extending its service life.

[0093] During the backwash process, the backwash water flow is intercepted by the baffle 301a to prevent the backwash water from directly washing the inner filter 104, thereby causing the newly replaced inner filter 104 to be blocked before it is used. The backwash water will be discharged to the outside of the fixed sleeve 102 through the drainage hole 102-4.

[0094] When the baffle 301a rotates to an angle parallel to the mounting frame 103, the end of the push rod 304d will be close to the force-bearing plate 302b. When the blocking plate 302a slowly moves toward the position of the drainage hole 102-4, the force-bearing plate 302b will be driven to approach the end of the push rod 304d. When the blocking plate 302a is about to completely block the drainage hole 102-4, the force-bearing plate 302b will contact the inclined surface of the end of the push rod 304d and push the push rod 304d to move, so that the other end of the push rod 304d is squeezed against the inclined surface of the inner wall of the force-bearing groove 304b-1. The mounting block 304b and the limiting column 304a are driven to move through the cooperation of the two, so that the limiting column 304a can be separated from the limiting hole 301b-1 and the restriction on the baffle 301a can be released. At this time, the baffle 301a can be rotated to the initial position when it is thrust by the water flow.

[0095] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A vertical shaft bulb tubular pump unit, characterized in that: include, A main body component (100) comprises a tubular pump body (101), a fixing sleeve (102) being fixed to one side of the tubular pump body (101), a mounting frame (103) being arranged inside the fixing sleeve (102), a filter screen (104) being arranged inside the mounting frame (103), and two of the filter screen (104) and two of the mounting frame (103), which are respectively located on two sides of the inside of the fixing sleeve (102); The switching assembly (200) is arranged in the fixed sleeve (102), and comprises a rotating member (201), wherein the rotating member (201) comprises a rotating plate (201a), wherein the rotating plate (201a) is rotatably connected to the inner wall of the fixed sleeve (102) via a rotating shaft, wherein one side of the rotating plate (201a) is rotatably connected to a connecting rod (201b) via a rotating shaft, and a connecting block (201c) is fixed to one side of the installation frame (103), wherein a guide shaft (201d) is arranged in the connecting block (201c), and the connecting rod (201b) is connected to the fixing sleeve (102) via a rotating shaft. ) one end of which is rotatably connected to the outside of the guide shaft (201d) through a bearing, a slide groove (102-1) is provided in the fixed sleeve (102), the guide shaft (201d) slides in the slide groove (102-1), an annular groove (102-2) is provided in the fixed sleeve (102), the annular groove (102-2) is communicated with the slide groove (102-1), a rotating column (201e) is fixed in the rotating plate (201a), and one end of the rotating column (201e) passes through the outside of the fixed sleeve (102); The interception assembly (300) is arranged in the fixed sleeve (102), comprising an interception member (301), the interception member (301) comprising a baffle (301a), a movable groove (102-3) is provided in the fixed sleeve (102), the baffle (301a) is located in the movable groove (102-3), a positioning shaft (301b) is fixed to the inner wall of the movable groove (102-3), the baffle (301a) is movably connected to the outer side of the positioning shaft (301b), a first torsion spring (301c) is fixed to the outer side of the positioning shaft (301b), one end of the first torsion spring (301c) is fixed to the inner side of the baffle (301a), and a drainage hole (102-4) is provided on the fixed sleeve (102).

2. The shaft bulb tubular pump unit according to claim 1, characterized in that: The interception assembly (300) further comprises a blocking member (302), the blocking member (302) comprising a blocking plate (302a), a first chamber (102-5) being provided in the fixing sleeve (102), the blocking plate (302a) being located in the first chamber (102-5) and overlapping with the drainage hole (102-4), a force-bearing plate (302b) being fixed to one side of the blocking plate (302a), and a positioning rod (302b) being fixed to one side of the blocking plate (302a). 2c), a positioning sleeve (302d) is fixed to the inner wall of the first chamber (102-5), a sealing block (302e) is fixed to the end of the positioning rod (302c), a first spring (302f) is fixed to the inner wall of the positioning sleeve (302d), a ventilation groove (302d-1) is provided on one side of the positioning sleeve (302d), a stopper (302g) is provided on one side of the positioning sleeve (302d), and a ventilation hole (302g-1) is provided on the stopper (302g).

3. The shaft bulb tubular pump unit according to claim 2, characterized in that: The interception assembly (300) further comprises a blocking member (303), wherein the blocking member (303) comprises a limit block (303a), a slot (102-6) is provided on the fixing sleeve (102), the limit block (303a) is inserted into the slot (102-6), and one side of the limit block (303a) is in contact with the baffle (301a), a second spring (303b) is fixed to one side of the limit block (303a), and the other end of the second spring (303b) is fixed to the inner wall of the slot (102-6), a force-bearing rod (303c) is fixed to one side of the limit block (303a), and a fixing rod (303d) is fixed to the other side of the limit block (303a), and one side of the fixing rod (303d) is in contact with the baffle (301a).

4. The shaft bulb tubular pump unit according to claim 2 or 3, characterized in that: The interception assembly (300) further comprises a locking member (304), wherein the locking member (304) comprises a limiting column (304a), wherein the limiting column (304a) is inserted into the baffle plate (301a), wherein a limiting hole (301b-1) corresponding to the limiting column (304a) is provided on the positioning shaft (301b), wherein a mounting block (304b) is fixed to one end of the limiting column (304a), wherein a third spring (304c) is fixed to one side of the mounting block (304b), wherein a second chamber (301a-1) is provided in the baffle plate (301a), wherein the other end of the third spring (304c) is fixed to an inner wall of the second chamber (301a-1), wherein a push rod (304d) is inserted into one side of the baffle plate (301a), and wherein a force bearing groove (304b-1) is provided on the mounting block (304b).

5. The shaft bulb tubular pump unit according to claim 4, characterized in that: The switching assembly (200) further comprises a limiting member (202), the limiting member (202) comprising a limiting plate (202a), a groove (102-7) being formed on the fixing sleeve (102), the limiting plate (202a) being located in the groove (102-7), a stabilizing shaft (202b) being fixed to the inner wall of the groove (102-7), the limiting plate (202a) being movably connected to the outer side of the stabilizing shaft (202b), a second torsion spring (202c) being sleeved on the outer side of the stabilizing shaft (202b), and two ends of the second torsion spring (202c) being respectively fixed to the stabilizing shaft (202b) and the limiting plate (202a).

6. The shaft bulb tubular pump unit according to claim 5, characterized in that: The switching assembly (200) further comprises a locking member (203), wherein the locking member (203) comprises a support block (203a), wherein the support block (203a) is fixed to one side of the fixing sleeve (102), wherein an insertion rod (203b) is inserted into the support block (203a), wherein an insertion hole (201e-1) is provided on the rotating column (201e), wherein the insertion rod (203b) is inserted into the insertion hole (201e-1), wherein a mounting plate (203c) is fixed to the top end of the insertion rod (203b), wherein a fifth spring (203d) is fixed to the bottom end of the mounting plate (203c), and wherein the bottom end of the fifth spring (203d) is fixed to the support block (203a).

7. The shaft bulb tubular pump unit according to claim 5 or 6, characterized in that: The main body component (100) further comprises a connecting member (105), the connecting member (105) comprising a clamping block (105a), a third chamber (103-1) is provided in the installation frame (103), the clamping block (105a) is located in the third chamber (103-1), a clamping slot (104-1) is provided on the filter screen (104), the clamping block (105a) is engaged with the clamping slot (104-1), and a fourth spring (105b) is fixed to one side of the clamping block (105a).

8. The shaft bulb tubular pump unit according to claim 7, characterized in that: The clamping block (105a) is provided with a through slot (105-1), a force-bearing block (105c) is fixed to the inner wall of the through slot (105-1), a moving rod (105d) is movably connected in the installation frame (103), and an extrusion block (105e) is fixed to one side of the moving rod (105d).

9. The shaft bulb tubular pump unit according to claim 8, characterized in that: A connecting rope (105f) is fixed to the end of the moving rod (105d), and the connecting rope (105f) is movably connected to the inside of the installation frame (103).

10. The shaft bulb tubular pump unit according to claim 8 or 9, characterized in that: A handle is fixed to the end of the rotating column (201e).

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