Anti-clogging spiral centrifugal pump

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses an anti-blocking spiral centrifugal pump, including a pump body, and a discharge pipe fixedly mounted on the upper end face of the pump body, an input pipe fixedly mounted on the front end face of the pump body, a gear box fixedly mounted on the middle of the rear end face of the pump body, a rotating cone shaft rotatably mounted in the middle of the inner cavity of the pump body, spiral blades fixedly mounted on the side walls of the rotating cone shaft, a breaking rod fixedly mounted on the side walls of the spiral blades, a driving component is arranged in the inner cavity of the gear box, a discharge mechanism is arranged in the inner cavity of the breaking rod, and an anti-blocking mechanism is arranged on the upper part of the inner cavity of the pump body. The utility model enables the entire device to realize the function of sucking and discharging materials through the arrangement of the driving component, and at the same time, a breaking rod and a discharge mechanism are added, which can spray liquid while rotating to break up the silt blocking the pump body, further improving the anti-blocking performance of the entire device.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal pumps, in particular to an anti-clogging spiral centrifugal pump. Background Art

[0002] Spiral centrifugal pumps are mainly used to transport solid-liquid two-phase fluids, and can also be used to drain and transport high-viscosity liquids. In order to prevent solid matter from clogging and allow it to flow out smoothly, traditional spiral centrifugal pumps have a twisted spiral blade in the open (closed) impeller, which extends axially from the suction hole on the star-chasing wheel hub body. The radius of the blade casting is increased to form a spiral propulsion effect. The impeller of the volute part produces a centrifugal effect like a general centrifugal pump. The sharp angle part of the blade inlet guides the debris to the vicinity of the axis, and then uses the spiral effect to propel it axially. However, if the solid phase concentration of the transported fluid accounts for a large proportion, the possibility of clogging of the spiral centrifugal pump will greatly increase. Since the spiral centrifugal pump is equipped with three-dimensional spiral blades, it is difficult to dredge it after clogging. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] The utility model aims to provide an anti-clogging spiral centrifugal pump to solve the problem in the above background technology that it is inconvenient to adjust the safety protection range according to different usage scenarios and usage requirements.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of anti-clogging spiral centrifugal pump, comprising a pump body, and a discharge pipe fixedly installed on the upper end face of the pump body, an input pipe fixedly installed on the front end face of the pump body, a gear box fixedly installed on the middle part of the rear end face of the pump body, a rotating conical shaft rotatably installed in the middle part of the inner cavity of the pump body, a spiral blade fixedly installed on the side wall of the rotating conical shaft, a breaking rod fixedly installed on the side wall of the spiral blade, a driving assembly is provided in the inner cavity of the gear box, a discharge mechanism is provided in the inner cavity of the breaking rod, and an anti-clogging mechanism is provided on the upper part of the inner cavity of the pump body.

[0007] Preferably, the drive assembly includes a support plate fixedly mounted on the side wall of the pump body, and a worm rotatably mounted on the side wall of the support plate. A transmission rod is rotatably mounted in the middle of the rear side wall of the pump body, a worm wheel is fixedly mounted on the side wall of the transmission rod, and the transmission rod is fixedly connected to the rotating conical shaft.

[0008] Preferably, a servo motor is fixedly mounted on the side wall of the pump body via a frame, an output shaft end of the servo motor passes through a gear box and is fixedly connected to a worm, and the worm is meshingly connected to a worm wheel.

[0009] Preferably, the discharge mechanism includes a movable rod slidably installed in the inner cavity of the breaking rod, a counterweight ball is fixedly installed on the end of the movable rod, a return spring is wound around the side wall of the movable rod, a piston plate is fixedly installed on the end of the movable rod away from the counterweight ball, and both ends of the return spring are respectively fixedly installed on the side wall of the inner cavity of the breaking rod and the inner wall of the piston plate.

[0010] Preferably, drainage holes are provided on the upper and lower sides of the side walls of the breaking rod, and the inner cavity of the drainage hole is provided with a one-way water valve with an outlet to the outside. A liquid inlet hole is provided on the end side wall of the breaking rod, and the inner cavity of the liquid inlet hole is provided with a one-way water valve with an outlet to the inner cavity of the breaking rod. The movable rod is slidably connected to the breaking rod, and the material of the counterweight ball is iron.

[0011] Preferably, the anti-blocking mechanism includes a movable groove provided on the side wall of the pump body, a spiral rod is rotatably mounted on the side wall of the inner cavity of the movable groove, a magnetic block is threadedly mounted on the side wall of the spiral rod, a connecting spring is mounted on the side wall of the magnetic block, the other end of the connecting spring is fixedly mounted on the inner wall of the movable groove, an anti-blocking roller is rotatably mounted on the inner cavity of the pump body, the anti-blocking roller is hollow, and a plurality of groups of through holes are provided on the inner wall of the anti-blocking roller.

[0012] Preferably, the thread lead angle of the spiral rod is greater than the equivalent friction angle of the magnetic block, the spiral rod is transmission-connected to the anti-blocking roller via a pulley assembly, and the anti-blocking roller is arranged directly below the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model, through the setting of the driving component, can enable the whole equipment to complete the function of absorbing and discharging sewage; when the rotating cone shaft rotates, the breaking rod fixed on the spiral blade can break up the silt in the sewage, reducing the probability of silt accumulating in the pump body and causing blockage. When the breaking rod rotates, under the cooperation of the counterweight ball and the movable rod, the sewage in the breaking rod can be discharged from the drainage hole, and the ejected sewage water column can break up the silt adhering to the inner wall of the pump body or in the sewage, so as to improve the anti-blocking effect of the whole equipment.

[0015] 2. In the utility model, when the counterweight ball rotates and approaches the position of the magnetic block, the connecting spring will be compressed, and the magnetic block will move toward the inner cavity of the movable groove. Since the thread lead angle of the spiral rod is greater than the equivalent friction angle of the magnetic block, the spiral rod will rotate at this time, and with the cooperation of the pulley assembly, the anti-blocking roller will rotate. Since a number of through holes are opened on the inner wall of the anti-blocking roller, the anti-blocking roller can rotate longitudinally in the sewage water body to make the silt collide with the inner wall of the pump body, thereby causing looseness, so as to further ensure the anti-blocking performance of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a rear view overall structural schematic diagram of the utility model;

[0017] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the pump body of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the breaking rod of the utility model.

[0020] In the figure: 1. pump body; 11. movable groove; 2. discharge pipe; 3. input pipe; 4. gear box; 5. rotating cone shaft; 51. spiral blade; 6. breaking rod; 61. drainage hole; 7. driving assembly; 71. support plate; 72. worm; 73. transmission rod; 74. worm wheel; 75. servo motor; 8. discharge mechanism; 81. movable rod; 82. counterweight ball; 83. reset spring; 84. piston plate; 9. anti-blocking mechanism; 91. spiral rod; 911. pulley assembly; 92. magnetic block; 93. connecting spring; 94. anti-blocking roller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution for an anti-clogging spiral centrifugal pump: an anti-clogging spiral centrifugal pump, comprising a pump body 1, and a discharge pipe 2 fixedly mounted on the upper end surface of the pump body 1, an input pipe 3 fixedly mounted on the front end surface of the pump body 1, a gear box 4 fixedly mounted on the middle part of the rear end surface of the pump body 1, a rotating conical shaft 5 rotatably mounted in the middle part of the inner cavity of the pump body 1, a spiral blade 51 fixedly mounted on the side wall of the rotating conical shaft 5, a breaking rod 6 fixedly mounted on the side wall of the spiral blade 51, a driving assembly 7 is provided in the inner cavity of the gear box 4, a discharge mechanism 8 is provided in the inner cavity of the breaking rod 6, and an anti-clogging mechanism 9 is provided on the upper part of the inner cavity of the pump body 1.

[0023] Further, the driving assembly 7 includes a support plate 71 fixedly mounted on the side wall of the pump body 1, and a worm 72 rotatably mounted on the side wall of the support plate 71, a transmission rod 73 is rotatably mounted in the middle of the rear side wall of the pump body 1, a worm wheel 74 is fixedly mounted on the side wall of the transmission rod 73, and the transmission rod 73 is fixedly connected to the rotating cone shaft 5;

[0024] A servo motor 75 is fixedly mounted on the side wall of the pump body 1 through a frame. The output shaft end of the servo motor 75 passes through the gear box 4 and is fixedly connected to the worm 72 . The worm 72 is meshedly connected to the worm wheel 74 .

[0025] The discharge mechanism 8 comprises a movable rod 81 slidably mounted in the inner cavity of the breaker rod 6, a weight ball 82 is fixedly mounted on the end of the movable rod 81, a return spring 83 is wound around the side wall of the movable rod 81, a piston plate 84 is fixedly mounted on the end of the movable rod 81 away from the weight ball 82, and both ends of the return spring 83 are respectively fixedly mounted on the inner cavity side wall of the breaker rod 6 and the inner wall of the piston plate 84;

[0026] Drain holes 61 are provided on the upper and lower sides of the side wall of the breaking rod 6, and the inner cavity of the drainage hole 61 is provided with a one-way water valve with an outlet to the outside. A liquid inlet hole 62 is provided on the end side wall of the breaking rod 6, and the inner cavity of the liquid inlet hole 62 is provided with a one-way water valve with an outlet to the inner cavity of the breaking rod 6. The movable rod 81 is slidably connected to the breaking rod 6, and the material of the counterweight ball 82 is iron.

[0027] The anti-blocking mechanism 9 includes a movable groove 11 provided on the side wall of the pump body 1, a screw rod 91 is rotatably mounted on the inner cavity side wall of the movable groove 11, a magnetic block 92 is threadedly mounted on the side wall of the screw rod 91, a connecting spring 93 is mounted on the side wall of the magnetic block 92, and the other end of the connecting spring 93 is fixedly mounted on the inner wall of the movable groove 11, an anti-blocking roller 94 is rotatably mounted in the inner cavity of the pump body 1, the anti-blocking roller 94 is hollow, and a plurality of through holes are provided on the inner wall of the anti-blocking roller 94;

[0028] The thread lead angle of the screw rod 91 is greater than the equivalent friction angle of the magnetic block 92 . The screw rod 91 is transmission-connected to the anti-blocking roller 94 via a pulley assembly 911 . The anti-blocking roller 94 is arranged just below the discharge pipe 2 .

[0029] Working principle: before the whole equipment starts working, the user needs to connect the input pipe 3 with the outlet end of the material, and then start the servo motor 75 to rotate the worm 72. Since the worm 72 is meshed with the worm wheel 74, the worm wheel 74 will drive the transmission rod 73 to rotate the rotating cone shaft 5. At this time, the spiral blade 51 will be rotated at a high speed in the inner cavity of the pump body 1 to absorb the material at the input pipe 3 and discharge it from the discharge pipe 2. That is, at this time, the whole equipment will complete the function of absorbing and discharging sewage;

[0030] When the rotating cone shaft 5 rotates, the breaker rod 6 fixed on the spiral blade 51 also rotates accordingly. At this time, the breaker rod 6 can break the silt in the sewage, reducing the probability of silt accumulating in the pump body 1 and causing blockage. When the breaker rod 6 rotates, under the action of the centrifugal force of the weight ball 82 itself, the weight ball 82 will pull the movable rod 81 to move the piston plate 84 to the left side of the breaker rod 6. At this time, a small amount of sewage in the pump body 1 can enter the inner cavity of the breaker rod 6 through the liquid inlet hole 62. When the rotating cone shaft 5 reduces the speed or stops rotating, the centrifugal force of the weight ball 82 decreases. Under the elastic force of the return spring 83 itself, the piston plate 84 will move to the right side of the breaker rod 6. At this time, the sewage in the breaker rod 6 can be discharged from the drainage hole 61. The ejected sewage water column can break up the silt adhering to the inner wall of the pump body 1 or in the sewage, thereby further improving the anti-blocking effect of the entire equipment.

[0031] When the counterweight ball 82 rotates and approaches the position of the magnet 92, the connecting spring 93 will be compressed. At this time, the magnet 92 will move toward the inner cavity of the movable groove 11. Since the thread lead angle of the screw rod 91 is greater than the equivalent friction angle of the magnet 92, the screw rod 91 will rotate at this time, and with the cooperation of the pulley assembly 911, the anti-blocking roller 94 will rotate. Since a number of through holes are opened on the inner wall of the anti-blocking roller 94, the anti-blocking roller 94 can rotate longitudinally in the sewage water body to make the silt collide with the inner wall of the pump body 1, thereby causing looseness, so as to further ensure the anti-blocking performance of the entire equipment.

[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An anti-clogging spiral centrifugal pump, comprising a pump body (1), and a discharge pipe (2) fixedly mounted on the upper end surface of the pump body (1), an input pipe (3) fixedly mounted on the front end surface of the pump body (1), and a gear box (4) fixedly mounted on the middle part of the rear end surface of the pump body (1), characterized in that: A rotating cone shaft (5) is rotatably mounted in the middle of the inner cavity of the pump body (1), a spiral blade (51) is fixedly mounted on the side wall of the rotating cone shaft (5), a crushing rod (6) is fixedly mounted on the side wall of the spiral blade (51), a driving assembly (7) is arranged in the inner cavity of the gear box (4), a discharge mechanism (8) is arranged in the inner cavity of the crushing rod (6), and an anti-blocking mechanism (9) is arranged in the upper part of the inner cavity of the pump body (1).

2. The anti-clogging spiral centrifugal pump according to claim 1, characterized in that: The driving assembly (7) comprises a support plate (71) fixedly mounted on the side wall of the pump body (1), and a worm (72) rotatably mounted on the side wall of the support plate (71); a transmission rod (73) is rotatably mounted in the middle of the rear side wall of the pump body (1); a worm wheel (74) is fixedly mounted on the side wall of the transmission rod (73); and the transmission rod (73) is fixedly connected to the rotating cone shaft (5).

3. The anti-clogging spiral centrifugal pump according to claim 2, characterized in that: A servo motor (75) is fixedly mounted on the side wall of the pump body (1) via a frame, an output shaft end of the servo motor (75) passes through the gear box (4) and is fixedly connected to the worm (72), and the worm (72) is meshingly connected to the worm wheel (74).

4. The anti-clogging spiral centrifugal pump according to claim 1, characterized in that: The discharge mechanism (8) comprises a movable rod (81) slidably mounted in the inner cavity of the crushing rod (6), a counterweight ball (82) being fixedly mounted on the end of the movable rod (81), a return spring (83) being wound around the side wall of the movable rod (81), a piston plate (84) being fixedly mounted on the end of the movable rod (81) away from the counterweight ball (82), and two ends of the return spring (83) being fixedly mounted on the inner cavity side wall of the crushing rod (6) and the inner wall of the piston plate (84), respectively.

5. The anti-clogging spiral centrifugal pump according to claim 4, characterized in that: The side wall of the crushing rod (6) is provided with drainage holes (61) on both sides, and the inner cavity of the drainage hole (61) is provided with a one-way water valve with an outlet to the outside. The end side wall of the crushing rod (6) is provided with a liquid inlet hole (62), and the inner cavity of the liquid inlet hole (62) is provided with a one-way water valve with an outlet to the inner cavity of the crushing rod (6). The movable rod (81) is slidably connected to the crushing rod (6), and the material of the counterweight ball (82) is iron.

6. The anti-clogging spiral centrifugal pump according to claim 1, characterized in that: The anti-blocking mechanism (9) comprises a movable groove (11) provided on the side wall of the pump body (1); a screw rod (91) is rotatably mounted on the inner cavity side wall of the movable groove (11); a magnetic block (92) is threadedly mounted on the side wall of the screw rod (91); a connecting spring (93) is mounted on the side wall of the magnetic block (92); the other end of the connecting spring (93) is fixedly mounted on the inner wall of the movable groove (11); an anti-blocking roller (94) is rotatably mounted in the inner cavity of the pump body (1); the anti-blocking roller (94) is hollow and a plurality of through holes are provided on the inner wall of the anti-blocking roller (94).

7. The anti-clogging spiral centrifugal pump according to claim 6, characterized in that: The thread lead angle of the spiral rod (91) is greater than the equivalent friction angle of the magnetic block (92). The spiral rod (91) is transmission-connected to an anti-blocking roller (94) via a pulley assembly (911). The anti-blocking roller (94) is arranged directly below the discharge pipe (2).

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