CN211692924U

CN211692924U - Cutting device for small submersible pump

Info

Publication number: CN211692924U
Application number: CN201922420893.6U
Authority: CN
Inventors: 苏鹏飞; 赵娜
Original assignee: Nanjing Leshui Mechanical And Electrical Technology Co ltd
Current assignee: Nanjing Leshui Mechanical And Electrical Technology Co ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-10-16
Anticipated expiration: 2029-12-29

Abstract

The utility model discloses a cutting device for small-size immersible pump, including the pump body, base, pump shaft, be located pump shaft left side base right side and stretcher left end fixed connection, the filter screen is installed at the stretcher top, the bottom fixed connection of filter screen top and second spring, base inner wall top and first spring one end fixed connection, the pump shaft runs through into water tray, filter screen, cutting disc in proper order, cutting blade is installed to the cutting disc outer wall. This be used for small-size immersible pump cutting device rotates through the pump shaft and indirectly makes cutting blade rotate, can cut off other debris such as pasture and water that are inhaled by the centrifugation through cutting blade, can block these debris by the cutting off in the outside through the filter screen, indirectly make the bull stick rotate through gear rotation, rotate through the bull stick and can produce the vibration effect through between first shell fragment and the second shell fragment, make the filter screen also produce the vibration, avoid the filter screen phenomenon that is blockked up.

Description

Cutting device for small submersible pump

Technical Field

The utility model relates to a cutting device technical field for the pump specifically is a cutting device for small-size immersible pump.

Background

The submersible pump is an important device for pumping water from a deep well. When in use, the whole unit is submerged to work, and underground water is extracted to the ground surface, so that the unit is used for domestic water, mine emergency, industrial cooling, farmland irrigation, seawater lifting and ship load regulation, and can also be used for fountain landscape. The submersible pump is widely applied to conveying medium fields containing impurities, can well convey domestic wastewater, sewage and media containing silt, wood pits and other solid suspended matters, but the major defect of most of the conventional submersible pumps is that when the submersible pumps convey the media containing longer impurities such as fibers and fine branches, the longer impurities such as the fibers can be wound on the impeller, so that the efficiency of the sewage pump is reduced, and the impeller can be damaged seriously to stop a submersible pump unit. At present, the submersible pump is provided with a cutting device for cutting long sundries such as aquatic weeds, but the cut sundries such as the aquatic weeds can still be sucked into a pump cavity to cause a blocking phenomenon.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutting device for small-size immersible pump to solve among the above-mentioned background art present immersible pump and can be provided with cutting device, cut longer debris such as these pasture and water, but impurity such as the pasture and water after the cutting still can be inhaled and cause the problem of blocking phenomenon in the pump chamber.

In order to achieve the above object, the utility model provides a following technical scheme: a cutting device for a small submersible pump comprises a pump body, a base and a pump shaft, wherein the bottom of the pump body is fixedly connected with the top of the base through a bolt, the right side of the base on the left side of the pump shaft is fixedly connected with the left end of a stretcher, the left side of the base on the right side of the pump shaft is fixedly connected with the right end of the stretcher, a filter screen is installed at the top of the stretcher, the top of the filter screen is fixedly connected with the bottom of a second spring, the top of the second spring is fixedly connected with the bottom of a second elastic sheet, the top of the inner wall of the base is fixedly connected with one end of a first spring, the other end of the first spring is fixedly connected with the top of the first elastic sheet, the pump shaft sequentially penetrates through the top of a water inlet disc, the top of the filter screen, the top of a cutting disc and the bottom of the pump shaft to extend, the impeller is installed to the outer wall of pump shaft, and the outer wall of pump shaft has seted up the screw thread, the screw thread meshes with the rack gear mutually, the bottom of gear and the top fixed connection of pivot, the top that the bottom of pivot runs through into the water tray extends to below the bottom of intaking dish, the outer wall of pivot and the one end fixed connection of bull stick, the other end of bull stick is in between the top of the bottom of the one end of first shell fragment and the one end of second shell fragment, the water inlet dish is installed in the water inlet department of the pump body, and the inlet opening has been seted up at the top of intaking dish.

Preferably, the top of the pump body is provided with a through hole matched with the pump shaft, and the right side of the pump body is communicated with the left side of the pump pipe.

Preferably, the bottom of the pump shaft is sleeved with a nut, and the inner wall of the nut is provided with an internal thread matched with the thread on the outer wall of the pump shaft.

Preferably, the number of the cutting blades is six, and the shape of the cutting blades is a circular arc.

Preferably, the first elastic sheet and the second elastic sheet are both arc-shaped, and the lowest part of the bottom of the first elastic sheet is in contact with the highest part of the top of the second elastic sheet.

Preferably, the two gears and the two rotating shafts are symmetrically distributed on two sides of the pump shaft by taking a center line of the front surface of the pump shaft as a symmetry axis.

Compared with the prior art, the utility model provides a be used for small-size immersible pump cutting device, it is to possess following beneficial effect:

the cutting device for the small submersible pump can make the impeller rotate by rotating the pump shaft, thereby sucking water, also can make the cutting disc rotate by rotating the pump shaft, thereby making the cutting blade rotate, can cut off other sundries such as waterweeds sucked by centrifugation and the like by the cutting blade, can block the cut-off sundries outside by the filter screen, thereby avoiding the effect of being blocked in the pump chamber, when the filter screen is blocked, the gear can rotate by rotating the pump shaft, thereby making the rotating shaft rotate by rotating the gear, thereby making the rotating rod rotate, when the rotating rod rotates and passes through the contact point of the first elastic sheet and the second elastic sheet, the first spring can be compressed upwards, the second spring is compressed downwards, when the rotating rod returns to the original position, the first spring and the second spring can be restored to the original position, thereby generating the vibration effect, thereby making the filter screen generate the vibration effect, thereby can vibrate down the debris that is blockked up on the filter screen, avoid the phenomenon that the filter screen is blockked up.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

FIG. 3 is a schematic structural view of the cutting disc and the cutting blade of the present invention;

FIG. 4 is a schematic top view of the water inlet tray of the present invention;

fig. 5 is a schematic structural view of the first elastic piece and the second elastic piece of the present invention;

fig. 6 is a schematic view of the filter screen structure of the present invention.

In the figure: the pump comprises a pump body 1, a base 2, a bolt 3, a nut 4, a pump shaft 5, a pump pipe 6, an impeller 7, a cutting disc 8, a cutting blade 9, a water inlet disc 10, a water inlet hole 11, a gear 12, a rotating shaft 13, a rotating rod 14, a first spring 15, a first elastic sheet 16, a second spring 17, a second elastic sheet 18, a stretcher 19, a filter screen 20 and a thread 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a cutting device for a small submersible pump comprises a pump body 1, a base 2 and a pump shaft 5, wherein the bottom of the pump body 1 is fixedly connected with the top of the base 2 through a bolt 3, the top of the pump body 1 is provided with a through hole matched with the pump shaft 5, the right side of the pump body 1 is communicated with the left side of a pump pipe 6, the right side of the base 2 positioned on the left side of the pump shaft 5 is fixedly connected with the left end of a stretcher 19, the left side of the base 2 positioned on the right side of the pump shaft 5 is fixedly connected with the right end of the stretcher 19, the top of the stretcher 19 is provided with a filter screen 20, the filter screen 20 is installed to prevent cut-off sundries from entering the pump cavity, the top of the filter screen 20 is fixedly connected with the bottom of a second spring 17, the second spring 18 is arc-shaped, the top of the second spring 17 is fixedly connected with the bottom of the second spring 18, the top of the inner wall of the base 2 is, the shape of the first elastic sheet 16 is arc-shaped, the lowest part of the bottom of the first elastic sheet 16 is in contact with the highest part of the top of the second elastic sheet 18, the first spring 15 and the second spring 17 are arranged to play a telescopic role, the pump shaft 5 sequentially penetrates through the top of the water inlet disc 10, the top of the filter screen 20, the top of the cutting disc 8, the bottom of the pump shaft 5 extends to the position below the bottom of the cutting disc 8, the cutting blade 9 is installed on the outer wall of the cutting disc 8 and enables sundries to be cut off, the cutting blades 9 are six in number and are arc-shaped, the impeller 7 is installed on the outer wall of the pump shaft 5, the thread 21 is formed on the outer wall of the pump shaft 5, the nut 4 is sleeved at the bottom of the pump shaft 5, the inner wall of the nut 4 is provided with an inner thread matched with the thread 21 on the outer wall of the pump shaft 5, the thread 21 is meshed with the, two gears 12, two pivot 13 all use the positive central line of pump shaft 5 to be the both sides of symmetry axisymmetric distribution at pump shaft 5, the top that the bottom of pivot 13 runs through into water dish 10 extends below as the bottom of intaking dish 10, the outer wall of pivot 13 and the one end fixed connection of bull stick 14, it plays the squeezing action to set up bull stick 14, the other end of bull stick 14 is in between the bottom of the one end of first shell fragment 16 and the top of the one end of second shell fragment 18, intake tray 10 installs the water inlet department at the pump body 1, and intake opening 11 has been seted up at the top of intaking dish 10.

The working principle is as follows: when the cutting device for the small submersible pump is used, the impeller 7 rotates through the rotation of the pump shaft 5, so that water can be sucked, the cutting disc 8 also rotates through the rotation of the pump shaft 5, so that the cutting blade 9 rotates, other sundries such as water plants sucked by centrifugation can be cut off through the cutting blade 9, the cut-off sundries can be blocked outside through the filter screen 20, so that the effect of avoiding blockage in a pump cavity is achieved, when the filter screen 20 is blocked, the gear 12 rotates through the rotation of the pump shaft 5, the rotating shaft 13 rotates through the rotation of the gear 12, so that the rotating rod 14 rotates, the first spring 15 can be compressed upwards and the second spring 17 can be compressed downwards through the moment that the rotating rod 14 passes through the contact part of the first elastic sheet 16 and the second elastic sheet 18, and when the rotating rod 14 returns to the original position, the first spring 15 and the second spring 17 can be restored to the original state, thereby generating vibration effect, and the filter screen 20 also generates vibration effect, thereby vibrating sundries blocked on the filter screen 20, and avoiding the phenomenon that the filter screen 20 is blocked.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cutting device for small-size immersible pump, includes the pump body (1), base (2), pump shaft (5), its characterized in that: the pump is characterized in that the bottom of the pump body (1) is fixedly connected with the top of the base (2) through a bolt (3), the pump is located at the right side of the left base (2) of the pump shaft (5) and the left end of a stretcher (19), the left side of the base (2) on the right side of the pump shaft (5) and the right end of the stretcher (19) are fixedly connected, a filter screen (20) is installed at the top of the stretcher (19), the top of the filter screen (20) is fixedly connected with the bottom of a second spring (17), the top of the second spring (17) is fixedly connected with the bottom of a second elastic sheet (18), the top of the inner wall of the base (2) is fixedly connected with one end of a first spring (15), the other end of the first spring (15) is fixedly connected with the top of a first elastic sheet (16), and the pump shaft (5) sequentially penetrates through the top of the water inlet disc (10), the top of the filter screen (, The bottom of the top of the cutting disc (8) and the pump shaft (5) extends to the bottom of the cutting disc (8) and is below the bottom, a cutting blade (9) is installed on the outer wall of the cutting disc (8), an impeller (7) is installed on the outer wall of the pump shaft (5), a thread (21) is formed in the outer wall of the pump shaft (5), the thread (21) is meshed with a rack of a gear (12), the bottom of the gear (12) is fixedly connected with the top of a rotating shaft (13), the bottom of the rotating shaft (13) penetrates through the top of a water inlet disc (10) and extends to the position below the bottom of the water inlet disc (10), the outer wall of the rotating shaft (13) is fixedly connected with one end of a rotating rod (14), the other end of the rotating rod (14) is located between the bottom of one end of a first elastic sheet (16) and the top of one end of a second elastic sheet (18), and the water inlet disc (10) is installed at the water, and the top of the water inlet disc (10) is provided with a water inlet hole (11).

2. The cutting device for small submersible pumps according to claim 1, characterized in that: the pump is characterized in that a through hole matched with the pump shaft (5) is formed in the top of the pump body (1), and the right side of the pump body (1) is communicated with the left side of the pump pipe (6).

3. The cutting device for small submersible pumps according to claim 1, characterized in that: the pump is characterized in that a nut (4) is sleeved at the bottom of the pump shaft (5), and an internal thread matched with a thread (21) on the outer wall of the pump shaft (5) is formed in the inner wall of the nut (4).

4. The cutting device for small submersible pumps according to claim 1, characterized in that: the number of the cutting blades (9) is six, and the shape of each cutting blade (9) is circular arc.

5. The cutting device for small submersible pumps according to claim 1, characterized in that: the first elastic sheet (16) and the second elastic sheet (18) are both arc-shaped, and the lowest part of the bottom of the first elastic sheet (16) is in contact with the highest part of the top of the second elastic sheet (18).

6. The cutting device for small submersible pumps according to claim 1, characterized in that: the two gears (12) and the two rotating shafts (13) are symmetrically distributed on two sides of the pump shaft (5) by taking the center line of the front surface of the pump shaft (5) as a symmetry axis.