Self-priming pump with crushing and anti-blocking functions

Abstract

The invention relates to the technical field of self-priming pumps, and discloses a self-priming pump with crushing and anti-blocking functions, the self-priming pump comprises a self-priming pump main body, the water inlet end of the self-priming pump main body is fixedly connected with a shell, the interior of the shell is rotatably connected with an outer rotating rod, and the side wall of the outer rotating rod is fixedly connected with crushing blades in an annular array; the outer portion of the outer rotating rod is fixedly connected with a connecting rod, the end, away from the outer rotating rod, of the connecting rod is fixedly connected with a first annular blade, the inner wall of the shell is fixedly connected with a fixing ring, the top of the fixing ring is fixedly connected with a conical filter screen, and the side wall of the fixing ring is fixedly connected with a second annular blade. And an inner rotating rod is movably connected to the interior of the outer rotating rod, and a rotating disc is fixedly connected to the bottom of the inner rotating rod. According to the self-priming pump with the smashing and anti-blocking functions, impurities in a medium are smashed multiple times through the smashing blades and the rotating disc, so that the self-priming pump body is effectively prevented from being blocked, and the self-priming pump has the advantage of being good in smashing effect.

Description

Technical Field

[0001] The invention relates to the technical field of self-priming pumps, in particular to a self-priming pump with a crushing and anti-blocking function. Background Art

[0002] The self-priming pump is a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. The pipeline does not need to be installed with a foot valve. Before working, it is only necessary to ensure that there is a certain amount of liquid in the pump body. Different liquids can use self-priming pumps of different materials. The working principle of the self-priming pump is to fill the pump casing with water before starting the water pump. After starting, the impeller rotates at high speed to make the water in the impeller groove flow to the volute. At this time, a vacuum is formed at the inlet, so that the water inlet check valve opens, and the air in the suction pipe enters the pump and reaches the outer edge through the impeller groove.

[0003] When the existing self-priming pump is in operation, the medium being transported contains fibers that are easy to entangle or bunch. These limiters are easily entangled on the impeller, and solid particles such as paper scraps accumulate inside the pump body and block the front end of the impeller. Once the pump is blocked, the pump will not work normally and may even burn the motor, making it impossible for the self-priming pump to operate normally. It needs to be cleaned before it can work, affecting the working efficiency of the self-priming pump. Therefore, a self-priming pump with a crushing and anti-blocking function is urgently needed to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a self-priming pump with crushing and anti-blocking functions, which has advantages such as crushing function and solves the problem that the transported medium contains fibers that are easy to be entangled or bunched, and these fibers are easily entangled on the impeller, and solid particles such as paper scraps accumulate inside the pump body and block the front end of the impeller.

[0006] (II) Technical solution

[0007] The technical solution of the present invention to solve the above technical problems is as follows: A self-priming pump with a crushing and anti-blocking function comprises a self-priming pump body, the water inlet end of the self-priming pump body is fixedly connected to a shell, the inner part of the shell is rotatably connected to an outer rotating rod, the side wall of the outer rotating rod is fixedly connected to a crushing blade in an annular array, the outer part of the outer rotating rod is fixedly connected to a connecting rod, the end of the connecting rod away from the outer rotating rod is fixedly connected to a first annular blade, the inner wall of the shell is fixedly connected to a fixing ring, the top of the fixing ring is fixedly connected to a conical filter screen, the side wall of the fixing ring is fixedly connected to a second annular blade, the inner part of the outer rotating rod is movably connected to an inner rotating rod, the bottom of the inner rotating rod is fixedly connected to a rotating disk, the top of the shell is provided with a driving assembly for rotating the outer rotating rod, the top of the shell is provided with a transmission assembly for reciprocating the inner rotating rod up and down, the driving assembly comprises a driving motor fixedly mounted on the top of the shell, the output shaft of the driving motor is fixedly connected to a worm, and the outer part of the outer rotating rod is fixedly connected to a worm wheel connected to the worm transmission.

[0008] The beneficial effects of the present invention are:

[0009] The self-priming pump with a crushing and anti-blocking function crushes impurities in the medium multiple times by crushing blades and a rotating disk, and crushes the impurities again by the cooperation of the first annular blade and the second annular blade, thereby effectively avoiding blockage of the main body of the self-priming pump and having the advantage of a good crushing effect.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a limiting slider is fixedly connected to the side wall of the first annular blade, a limiting sliding groove is provided on the inner side wall of the shell, and the limiting slider is slidably connected to the inside of the limiting sliding groove.

[0012] The beneficial effect of adopting the above further solution is that the first annular blade is limited by the limiting slider to prevent the first annular blade from deviating during rotation, thereby improving the stability of the structure.

[0013] Furthermore, the transmission assembly includes two sliding rods fixedly connected to the top of the outer shell, and a slide plate is fixedly connected to the top of the inner rotating rod, and the slide plate is slidably connected to the outside of the sliding rod.

[0014] The beneficial effect of adopting the above further solution is that the slide plate is limited by the slide rod, so that the inner rotating rod can be stably raised and lowered.

[0015] Furthermore, a return spring is fixedly connected to the bottom of the slide plate, and one end of the return spring away from the slide plate is fixedly connected to the housing.

[0016] The beneficial effect of adopting the above further solution is that the slide plate is pushed away by the elastic potential energy of the return spring, thereby returning the slide plate to its original position.

[0017] Furthermore, a protective cover is fixedly connected to the top of the shell, a transmission rod is rotatably connected to the inner wall of the protective cover, a cam is fixedly connected to the outside of the transmission rod, the cam is fitted with a skateboard, a first pulley is fixedly connected to the outside of the worm, a belt is connected to the outside of the first pulley, a second pulley is fixedly connected to the outside of the transmission rod, and an end of the belt away from the first pulley is transmission-connected to the second pulley.

[0018] The beneficial effect of adopting the above further solution is that the worm drives the transmission rod to rotate through the belt, so that the cam rotates continuously to push the slide plate away, so that the inner rotating rod continuously moves back and forth up and down.

[0019] Furthermore, a filter cover is fixedly connected to the inner side wall of the shell, and the filter cover is sleeved on the outside of the water inlet end of the self-priming pump body.

[0020] The beneficial effect of adopting the above further solution is that secondary filtration is performed through the filter cover to prevent impurities from entering the interior of the self-priming pump body.

[0021] Furthermore, a water inlet pipe is fixedly connected to a side of the shell away from the self-priming pump body, and a water outlet pipe is fixedly connected to a water outlet end of the self-priming pump body.

[0022] The beneficial effect of adopting the above further solution is that the liquid first enters the housing through the water inlet pipe for treatment and then enters the self-priming pump.

[0023] Furthermore, a sealing cover is threadedly connected to the front side of the shell, and the first annular blades are staggered with the second annular blades.

[0024] The beneficial effect of adopting the above further solution is that impurities inside the housing can be easily taken out by rotating the sealing cover.

[0025] Furthermore, the number of the connecting rods is four, the inner rotating rod penetrates to the other end of the outer rotating rod, and the rotating disk is located below the crushing blades.

[0026] The beneficial effect of adopting the above further scheme is that, by the reciprocating up and down movement of the rotating disk, when there are sundries that have not been crushed at one time, they will be knocked up and can be crushed again by the crushing blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0029] Figure 3 It is a structural cross-sectional view of the cam in the present invention;

[0030] Figure 4 It is an enlarged view shown in Figure A of the present invention.

[0031] In the figure: 1. self-priming pump body; 2. outer shell; 3. outer rotating rod; 4. crushing blade; 5. connecting rod; 6. first annular blade; 7. fixing ring; 8. conical filter screen; 9. second annular blade; 10. inner rotating rod; 11. rotating disk; 12. limit slider; 13. driving motor; 14. worm; 15. worm gear; 16. sliding rod; 17. sliding plate; 18. reset spring; 19. transmission rod; 20. cam; 21. first pulley; 22. belt; 23. second pulley; 24. filter cover; 25. water inlet pipe; 26. water outlet pipe; 27. sealing cover. DETAILED DESCRIPTION

[0032] 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.

[0033] In the embodiment, Figure 1-4 A self-priming pump with a crushing and anti-blocking function is provided. The present invention comprises a self-priming pump body 1, a water inlet end of the self-priming pump body 1 is fixedly connected with a shell 2, a side of the shell 2 away from the self-priming pump body 1 is fixedly connected with a water inlet pipe 25, and a water outlet end of the self-priming pump body 1 is fixedly connected with a water outlet pipe 26. The medium first enters the shell 2 through the water inlet pipe 25 for processing and then enters the self-priming pump body 1.

[0034] The outer casing 2 is internally rotatably connected to an outer rotating rod 3, and a ring-shaped array of crushing blades 4 are fixedly connected to the side wall of the outer rotating rod 3. A driving assembly for rotating the outer rotating rod 3 is provided on the top of the outer casing 2. The driving assembly includes a driving motor 13 fixedly mounted on the top of the outer casing 2, and a worm 14 is fixedly connected to the output shaft of the driving motor 13. The outside of the outer rotating rod 3 is fixedly connected to a worm wheel 15 that is transmission-connected to the worm 14. By starting the driving motor 13, the worm 14 drives the worm wheel 15 to rotate, so that the outer rotating rod 3 drives the crushing blades 4 to rotate to crush impurities in the medium.

[0035] A connecting rod 5 is fixedly connected to the outside of the outer rotating rod 3, and a first annular blade 6 is fixedly connected to one end of the connecting rod 5 away from the outer rotating rod 3. A fixing ring 7 is fixedly connected to the inner wall of the outer shell 2, and a conical filter screen 8 is fixedly connected to the top of the fixing ring 7. A second annular blade 9 is fixedly connected to the side wall of the fixing ring 7. There are four connecting rods 5, and the first annular blade 6 is staggered with the second annular blade 9. Impurities in the medium are filtered through the conical filter screen 8 to prevent impurities from entering the interior of the self-priming pump body 1.

[0036] A limiting slider 12 is fixedly connected to the side wall of the first annular blade 6, and a limiting slot is provided on the inner wall of the outer shell 2. The limiting slider 12 is slidably connected to the inside of the limiting slot. The first annular blade 6 is limited by the limiting slider 12 to prevent the first annular blade 6 from shifting during rotation, thereby improving the stability of the structure.

[0037] Due to the setting of the conical filter screen 8, the intercepted impurities will slide to the position of the first annular blade 6. The outer rotating rod 3 drives the first annular blade 6 to rotate through the connecting rod 5, so that the first annular blade 6 and the second annular blade 9 cooperate to perform secondary crushing on the impurities, which has the advantage of good crushing effect.

[0038] The inner rotating rod 10 is movably connected to the inner rotating rod 10, and the bottom of the inner rotating rod 10 is fixedly connected to the rotating disk 11. The top of the outer shell 2 is provided with a transmission assembly that enables the inner rotating rod 10 to reciprocate up and down. The transmission assembly includes two slide bars 16 fixedly connected to the top of the outer shell 2. The top of the inner rotating rod 10 is fixedly connected to a slide plate 17, which is slidably connected to the outside of the slide bar 16. The slide plate 17 is limited by the slide bar 16, so that the inner rotating rod 10 can be stably raised and lowered.

[0039] A protective cover is fixedly connected to the top of the outer shell 2, and a transmission rod 19 is rotatably connected to the inner wall of the protective cover. A cam 20 is fixedly connected to the outside of the transmission rod 19, and the cam 20 is fitted with the slide plate 17. A first pulley 21 is fixedly connected to the outside of the worm 14, and a belt 22 is connected to the outside of the first pulley 21 for transmission. A second pulley 23 is fixedly connected to the outside of the transmission rod 19, and the end of the belt 22 away from the first pulley 21 is transmission-connected to the second pulley 23.

[0040] A return spring 18 is fixedly connected to the bottom of the slide plate 17, and one end of the return spring 18 away from the slide plate 17 is fixedly connected to the outer shell 2. The inner rotating rod 10 passes through the other end of the outer rotating rod 3. The rotating disk 11 is located below the crushing blade 4. The worm 14 drives the transmission rod 19 to rotate through the belt 22, thereby rotating the cam 20. When the distal end of the cam 20 contacts the slide plate 17, the slide plate 17 is pushed away to move the inner rotating rod 10 downward. When the proximal end of the cam 20 contacts the slide plate 17, the slide plate 17 is pushed away by the elastic potential energy of the return spring 18, thereby resetting the slide plate 17, and the reciprocating up and down movement is performed in this way. The rotating disk 11 reciprocates up and down. When there are debris that have not been crushed at one time, they will be knocked up and can be crushed again by the crushing blade 4.

[0041] A filter cover 24 is fixedly connected to the inner wall of the shell 2, and the filter cover 24 is sleeved on the outside of the water inlet end of the self-priming pump body 1. A sealing cover 27 is threadedly connected to the front of the shell 2. By rotating the sealing cover 27, impurities inside the shell 2 can be easily taken out, and secondary filtering is performed through the filter cover 24 to prevent impurities from entering the interior of the self-priming pump body 1.

[0042] Working principle:

[0043] Start the self-priming pump body 1 to allow the medium to enter the interior of the shell 2 through the water inlet pipe 25, and start the driving motor 13 to make the worm 14 drive the worm wheel 15 to rotate, so that the outer rotating rod 3 drives the crushing blade 4 to rotate to crush the impurities in the medium. At the same time, the worm 14 drives the transmission rod 19 to rotate through the belt 22, so that the cam 20 rotates to allow the rotating disk 11 to move up and down reciprocatingly. When there are debris that have not been crushed at one time, they will be beaten up and can be crushed again by the crushing blade 4, and the impurities in the medium will be filtered through the conical filter screen 8, and the intercepted impurities will slide to the position of the first annular blade 6, and the outer rotating rod 3 drives the first annular blade 6 to rotate through the connecting rod 5, so that the first annular blade 6 and the second annular blade 9 cooperate to crush the impurities again, and then the medium enters the interior of the self-priming pump body 1 after secondary filtration through the filter cover 24.

[0044] 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 "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] 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 self-priming pump with a crushing and anti-blocking function, comprising a self-priming pump body (1), characterized in that: The water inlet end of the self-priming pump body (1) is fixedly connected to a shell (2), the inside of the shell (2) is rotatably connected to an outer rotating rod (3), the side wall of the outer rotating rod (3) is fixedly connected to a crushing blade (4) in an annular array, the outside of the outer rotating rod (3) is fixedly connected to a connecting rod (5), the end of the connecting rod (5) away from the outer rotating rod (3) is fixedly connected to a first annular blade (6), the inner wall of the shell (2) is fixedly connected to a fixing ring (7), the top of the fixing ring (7) is fixedly connected to a conical filter screen (8), the side wall of the fixing ring (7) is fixedly connected to a second annular blade (9), the inside of the outer rotating rod (3) is movably connected to an inner rotating rod (10), the bottom of the inner rotating rod (10) is fixedly connected to a rotating disk (11), the top of the shell (2) is provided with a driving component for rotating the outer rotating rod (3), and the top of the shell (2) is provided with a transmission component for reciprocating and moving the inner rotating rod (10) up and down; The drive assembly comprises a drive motor (13) fixedly mounted on the top of the housing (2); a worm (14) is fixedly connected to the output shaft of the drive motor (13); and a worm wheel (15) drivingly connected to the worm (14) is fixedly connected to the outside of the outer rotating rod (3).

2. A self-priming pump with crushing and anti-blocking function according to claim 1, characterized in that: A limiting slide block (12) is fixedly connected to the side wall of the first annular blade (6), a limiting slide groove is provided on the inner side wall of the outer shell (2), and the limiting slide block (12) is slidably connected to the inside of the limiting slide groove.

3. A self-priming pump with crushing and anti-blocking function according to claim 1, characterized in that: The transmission assembly comprises two slide bars (16) fixedly connected to the top of the outer shell (2); a slide plate (17) is fixedly connected to the top of the inner rotating rod (10); and the slide plate (17) is slidably connected to the outside of the slide bar (16).

4. A self-priming pump with crushing and anti-blocking function according to claim 3, characterized in that: A return spring (18) is fixedly connected to the bottom of the slide plate (17), and one end of the return spring (18) away from the slide plate (17) is fixedly connected to the housing (2).

5. The self-priming pump with crushing and anti-blocking function according to claim 3 is characterized in that: The top of the housing (2) is fixedly connected to a protective cover, the inner side wall of the protective cover is rotatably connected to a transmission rod (19), the outside of the transmission rod (19) is fixedly connected to a cam (20), the cam (20) is fitted with a slide plate (17), the outside of the worm (14) is fixedly connected to a first pulley (21), the outside of the first pulley (21) is transmission-connected to a belt (22), the outside of the transmission rod (19) is fixedly connected to a second pulley (23), and the end of the belt (22) away from the first pulley (21) is transmission-connected to the second pulley (23).

6. The self-priming pump with crushing and anti-blocking function according to claim 1, characterized in that: A filter cover (24) is fixedly connected to the inner side wall of the outer shell (2), and the filter cover (24) is sleeved on the outside of the water inlet end of the self-priming pump body (1).

7. The self-priming pump with crushing and anti-blocking function according to claim 1, characterized in that: A water inlet pipe (25) is fixedly connected to a side of the housing (2) away from the self-priming pump body (1), and a water outlet pipe (26) is fixedly connected to a water outlet end of the self-priming pump body (1).

8. The self-priming pump with crushing and anti-blocking function according to claim 1, characterized in that: A sealing cover (27) is threadedly connected to the front side of the housing (2), and the first annular blades (6) and the second annular blades (9) are staggered.

9. The self-priming pump with crushing and anti-blocking function according to claim 1, characterized in that: The number of the connecting rods (5) is four, the inner rotating rod (10) penetrates to the other end of the outer rotating rod (3), and the rotating disk (11) is located below the crushing blade (4).

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