CN217976624U

CN217976624U - Large-flow amphibious sewage pump

Info

Publication number: CN217976624U
Application number: CN202221209132.1U
Authority: CN
Inventors: 江肖; 江维亮
Original assignee: Taizhou Yijie Pump Industry Co ltd
Current assignee: Taizhou Yijie Pump Industry Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-12-06
Anticipated expiration: 2032-05-19

Abstract

The utility model provides a large-traffic amphibian sewage pump belongs to water pump technical field. It has solved the inconvenient problem of current sewage pump equipment. The high-flow amphibious sewage pump comprises a water outlet pipe, a motor and a pump shell, wherein the motor comprises an upper end cover, a lower end cover and a cable, the lower end cover is connected with the pump shell through a guide vane arranged between the upper end cover and the lower end cover, the water outlet pipe is fixedly connected with the upper end cover through a connecting cylinder, a guide cylinder is fixed between the connecting cylinder and the guide vane, the motor is positioned in the guide cylinder, a vertically arranged straight pipe part is formed on the upper end cover, the straight pipe part is positioned outside the upper end cover, and the inner cavities of the straight pipe part and the upper end cover are communicated; an L-shaped protective pipe is integrally formed in the connecting cylinder, the upper end of the protective pipe extends out of the connecting cylinder, the lower end of the protective pipe is sleeved outside the straight pipe part, and a seal is formed between the inner wall of the protective pipe and the straight pipe part; one end of the cable sequentially penetrates through the straight pipe part and the protective pipe, and a rubber ring for sealing between the outer wall of the cable and the inner wall of the protective pipe is fixed in the upper end of the protective pipe. The large-flow amphibious sewage pump is convenient to assemble.

Description

Large-flow amphibious sewage pump

Technical Field

The utility model belongs to the technical field of the water pump, a sewage pump, especially a dual-purpose sewage pump of large-traffic land and water is related to.

Background

At present, the sewage pump for mining generally adopts an impeller and a guide vane to match and suck a conveying medium from the lower end of the pump and discharge the conveying medium upwards through a water outlet pipe arranged at the top. The sewage pump is structurally characterized by comprising an upper pump cover, an upper end cover, a motor shell, a motor, a bearing, a lower end cover, a mechanical seal, a guide vane, an impeller and a base, wherein the motor is arranged in the motor shell, the upper end cover and the lower end cover are respectively arranged at the top and the bottom of the motor shell, the upper pump cover is arranged above the upper end cover, the bearing is arranged between the motor shaft and the lower end cover of the motor, the mechanical seal is also arranged between the motor shaft and the lower end cover below the bearing, the guide vane is arranged on the base, the impeller is arranged at a water inlet of the guide vane and connected with the lower end part of the motor shaft of the motor, the motor shell is arranged above the guide vane and is of an interlayer structure, and a water outlet of the guide vane is communicated with an interlayer of the motor shell.

As can be seen from the attached drawings of the sewage electric pump, the side part of the motor shell is also provided with a cylinder part, and the cylinder part is used for extending out a cable of the motor in actual use. However, the provision of the cylindrical portion requires consideration of the sealing with the motor and the sandwich structure, which makes the entire assembly complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a large-flow amphibious sewage pump convenient to assemble.

The purpose of the utility model can be realized by the following technical proposal: the high-flow amphibious sewage pump comprises a water outlet pipe, a motor and a pump shell which are sequentially distributed from top to bottom, wherein the motor comprises an upper end cover, a lower end cover and a cable; an L-shaped protective pipe is integrally formed in the connecting cylinder, the upper end of the protective pipe extends out of the connecting cylinder, the lower end of the protective pipe is sleeved outside the straight pipe part, and a seal is formed between the inner wall of the protective pipe and the straight pipe part; one end of the cable sequentially penetrates through the straight pipe part and the protective pipe, and a rubber ring for sealing between the outer wall of the cable and the inner wall of the protective pipe is fixed in the upper end of the protective pipe.

Because connecting cylinder and pillar all install downwards, and connecting cylinder and pillar formula structure as an organic whole again, make the installation of pillar and connecting cylinder go on in step, accomplish in step, effectively reduce the installation step, have the convenient, light advantage of equipment.

Meanwhile, the protective tube is matched with the straight tube part to guide the installation of the connecting cylinder, so that the connecting cylinder is installed in place at one time, and the assembly is further facilitated.

In the high-flow amphibious sewage pump, the inner wall of the protective pipe and the straight pipe part form sealing through the sealing ring, so that the sealing effect formed between the protective pipe and the straight pipe part is effectively enhanced.

In the above-mentioned large-traffic amphibious sewage pump, offer the ring channel that is used for placing the sealing washer on the straight tube portion lateral wall, and the lateral wall pressure of sealing washer is on the pillar inside wall.

In the large-flow amphibious sewage pump, the bottom wall of the protective pipe is fixedly provided with the annular rubber pad, the annular rubber pad is sleeved outside the straight pipe part, and two end faces of the annular rubber pad are respectively tightly pressed on the bottom wall of the protective pipe and the upper end cover.

The annular rubber pad is matched with the sealing ring, so that a sealing path formed between the protective pipe and the straight pipe part is effectively prolonged, the difficulty of fluid entering the straight pipe part is increased, and the stable work of the motor is ensured.

In the large-flow amphibious sewage pump, the rubber ring is sleeved outside the cable, and the inner side wall and the outer side wall of the rubber ring are respectively pressed on the outer wall of the cable and the inner wall of the protective pipe.

In the large-flow amphibious sewage pump, the inner wall of the protecting pipe at the upper port is a first conical surface with the diameter gradually increasing from inside to outside, the outer wall of the rubber ring is a second conical surface matched with the first conical surface, the first conical surface is attached to the second conical surface, a pressing piece for axially compressing the rubber ring is further fixedly arranged on the protecting pipe, the rubber ring is radially expanded to respectively hold the inner wall of the protecting pipe and the outer wall of a cable tightly, the sealing effect formed between the protecting pipe and the cable is effectively enhanced, and external water or dust is prevented from entering the motor.

In the large-flow amphibious sewage pump, the pressing piece is an annular gasket sleeved outside the cable, the annular gasket is fixedly connected with the protective pipe, and the annular gasket is tightly pressed on the end face of the rubber ring. By adopting the design, the device has the advantages of simple structure and convenience in installation.

In foretell large-traffic amphibious sewage pump, annular gasket and pillar can be dismantled and link firmly, the rubber circle dismouting of being convenient for to reduce the replacement cost.

In the large-flow amphibious sewage pump, the upper end of the protective pipe is externally screwed with the pressing cap, the inner wall of the pressing cap is formed with the annular retaining shoulder, the annular gasket is positioned between the annular retaining shoulder and the rubber ring, and the annular retaining shoulder is tightly pressed on the annular gasket.

As another scheme, in the above-mentioned large-flow amphibious sewage pump, the annular gasket is fixedly connected with the protective pipe through a circle of screws uniformly distributed along the circumference of the annular gasket.

As another scheme, in the large-flow amphibious sewage pump, the pressing piece comprises a circle of pressing strips uniformly distributed along the circumferential direction of the protective pipe, one end of each pressing strip is fixedly connected with the protective pipe, and the other end of each pressing strip is tightly pressed on the end face of the rubber ring.

Compared with the prior art, the large-flow amphibious sewage pump has the advantages that:

1. because connecting cylinder and pillar all install downwards, and connecting cylinder and pillar formula structure as an organic whole again, make the installation of pillar and connecting cylinder go on in step, accomplish in step, effectively reduce the installation step, have the convenient, light advantage of equipment.

2. The protective tube is matched with the straight tube part to guide the installation of the connecting cylinder, so that the connecting cylinder is installed in place at one time, and the assembly is further facilitated.

3. The pillar and the cooperation of straight tube portion both formed the passageway that the power supply machine cable stretched out, were used for connecting cylinder installation direction again, promptly in this application, pillar and straight tube portion all possess the dual-purpose efficiency of an thing, when simplifying the structure, further convenient equipment.

Drawings

Fig. 1 is a schematic structural diagram of the high-flow amphibious sewage pump.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is a schematic view of a connection structure of the protection pipe and the straight pipe portion.

Fig. 4 is a schematic view of the mounting structure of the rubber ring.

In the figure, 1, a water outlet pipe; 2. a motor; 2a, an upper end cover; 2a1, a straight tube portion; 2b, a lower end cover; 2c, a cable; 3. a pump housing; 4. a guide vane; 5. an impeller; 6. a connecting cylinder; 6a, protecting the pipe; 7. a guide cylinder; 8. a rubber ring; 8a, a second conical surface; 9. a seal ring; 10. an annular rubber pad; 11. an annular gasket; 12. pressing the cap; 12a, an annular shoulder.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

The large-flow amphibious sewage pump is mainly improved in a structure that the cable 2c of the power supply machine 2 extends out of the sewage pump, and other structures are all the prior art and are not described in detail herein.

In particular, the present invention relates to a method for producing,

the high-flow amphibious sewage pump comprises a water outlet pipe 1, a motor 2 and a pump shell 3 which are sequentially distributed from top to bottom.

Wherein the content of the first and second substances,

the water outlet pipe 1 and the motor 2 are both arranged vertically and coaxially.

The motor 2 comprises an upper end cover 2a, a lower end cover 2b and a cable 2c, wherein the lower end cover 2b is connected with the pump shell 3 through a guide vane 4 arranged between the upper end cover and the lower end cover, an impeller 5 connected with a main shaft of the motor 2 is arranged in the pump shell 3, and the impeller 5 is communicated with an inlet of the guide vane 4. The water outlet pipe 1 and the upper end cover 2a are fixedly connected through a connecting cylinder 6 which is vertically arranged, a guide cylinder 7 is vertically fixed between the connecting cylinder 6 and the guide vane 4, the lower end of the guide cylinder 7 is communicated with an outlet of the guide vane 4, and the motor 2 is positioned in the guide cylinder 7.

As shown in fig. 1 and 2, a straight pipe portion 2a1 is integrally formed on the upper end cover 2a, the straight pipe portion 2a1 is located outside the upper end cover 2a, and the straight pipe portion 2a1 and the upper end cover 2a are communicated with each other via an inner cavity. An L-shaped protective pipe 6a is integrally formed in the connecting cylinder 6, the upper end of the protective pipe 6a extends out of the connecting cylinder 6, the lower end of the protective pipe 6a is sleeved outside the straight pipe part 2a1, and a seal is formed between the inner wall of the protective pipe 6a and the straight pipe part 2a 1. One end of the cable 2c sequentially penetrates through the straight pipe part 2a1 and the protective pipe 6a, a rubber ring 8 for sealing between the outer wall of the cable 2c and the inner wall of the protective pipe 6a is fixed in the upper end of the protective pipe 6a, and the other end of the cable 2c is connected with a winding of the motor 2.

During actual installation, because connecting cylinder 6 and pillar 6a all install downwards, and connecting cylinder 6 and pillar 6a formula structure as an organic whole again, make the installation of pillar 6a and connecting cylinder 6 go on in step, accomplish in step, effectively reduce installation steps, have the convenient, light advantage of equipment. Meanwhile, the protective tube 6a is matched with the straight tube part 2a1 to guide the installation of the connecting cylinder 6, so that the connecting cylinder 6 is installed in place at one time, and the assembly is further facilitated.

In the present embodiment, it is preferred that,

preferably, the lower end of the protective tube 6a extends out of the connecting cylinder 6;

as shown in fig. 2 and 3, a seal is formed between the inner wall of the protection tube 6a and the straight tube portion 2a1 by a seal ring 9 to effectively enhance the sealing effect between the protection tube 6a and the straight tube portion 2a 1. Specifically, an annular groove for placing the seal ring 9 is formed in the outer side wall of the straight tube portion 2a1, and the outer side wall of the seal ring 9 is pressed against the inner side wall of the protection tube 6 a. Further, an annular rubber pad 10 is fixed on the bottom wall of the protection tube 6a, the annular rubber pad 10 is sleeved outside the straight tube part 2a1, and two end faces of the annular rubber pad 10 are respectively pressed on the bottom wall of the protection tube 6a and the upper end cover 2 a. The annular rubber pad 10 is matched with the sealing ring 9, so that a sealing path formed between the protective pipe 6a and the straight pipe part 2a1 is effectively prolonged, the difficulty of fluid entering the straight pipe part 2a1 is increased, and the stable work of the motor 2 is ensured. Preferably, the annular rubber pad 10 is fixedly bonded with the protective tube 6 a.

The rubber ring 8 is arranged as follows: the rubber ring 8 is sleeved outside the cable 2c, and the inner side wall and the outer side wall of the rubber ring 8 are respectively pressed on the outer wall of the cable 2c and the inner wall of the protective tube 6 a.

As shown in fig. 2 and 4, the rubber ring 8 is installed as follows: the inner wall that the pillar 6a is located the upper port department is the conical surface one of diameter grow gradually from inside to outside, the outer wall of rubber circle 8 is conical surface two 8a with conical surface one matching, and conical surface one pastes with conical surface two 8a and leans on mutually, still set firmly the casting die that is used for axial compression rubber circle 8 on the pillar 6a, under the casting die effect, both realize rubber circle 8 location, make rubber circle 8 radial expansion again hold pillar 6a inner wall and cable 2c outer wall tightly respectively, effectively strengthen the sealed effect that forms between pillar 6a and the cable 2c, avoid outside water or dust to get into in the motor 2.

In the present embodiment, it is preferred that,

the casting die is annular gasket 11 for the cover outside cable 2c, and annular gasket 11 links firmly with pillar 6a, and annular gasket 11 sticiss on 8 terminal surfaces of rubber circle.

Further, the annular gasket 11 and the protection pipe 6a are detachably and fixedly connected, so that the rubber ring 8 can be conveniently disassembled and assembled, and the replacement cost is reduced. In practical products, the annular gasket 11 is mounted as follows: the upper end of the protective tube 6a is externally screwed with a pressure cap 12, an annular retaining shoulder 12a is formed on the inner wall of the pressure cap 12, the annular gasket 11 is positioned between the annular retaining shoulder 12a and the rubber ring 8, and the annular retaining shoulder 12a is tightly pressed on the annular gasket 11.

Example two

The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: the annular gasket 11 is fixedly connected with the protective pipe 6a through a circle of screws uniformly distributed along the circumferential direction of the annular gasket 11.

EXAMPLE III

The structure and principle of the third embodiment are basically the same as those of the first embodiment, and different points are as follows: the casting die includes the round layering of evenly distributing along pillar 6a circumference, and layering one end links firmly with pillar 6a, and the layering other end sticiss on 8 terminal surfaces of rubber circle.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The large-flow amphibious sewage pump comprises a water outlet pipe (1), a motor (2) and a pump shell (3) which are sequentially distributed from top to bottom, wherein the motor (2) comprises an upper end cover (2 a), a lower end cover (2 b) and a cable (2 c), the lower end cover (2 b) is connected with the pump shell (3) through a guide vane (4) arranged between the upper end cover and the lower end cover, an impeller (5) connected with a main shaft of the motor (2) is arranged in the pump shell (3), the water outlet pipe (1) and the upper end cover (2 a) are fixedly connected through a connecting cylinder (6), a guide cylinder (7) is vertically fixed between the connecting cylinder (6) and the guide vane (4), and the motor (2) is positioned in the guide cylinder (7), and the large-flow amphibious sewage pump is characterized in that a straight pipe parts (2 a 1) which are vertically arranged are integrally formed on the upper end cover (2 a), the straight pipe parts (2 a 1) are positioned outside the upper end cover (2 a), and inner cavities of the straight pipe parts (2 a 1) and the upper end cover (2 a) are communicated; an L-shaped protective pipe (6 a) is integrally formed in the connecting cylinder (6), the upper end of the protective pipe (6 a) extends out of the connecting cylinder (6), the lower end of the protective pipe (6 a) is sleeved outside the straight pipe part (2 a 1), and a seal is formed between the inner wall of the protective pipe (6 a) and the straight pipe part (2 a 1); one end of the cable (2 c) sequentially penetrates through the straight pipe part (2 a 1) and the protective pipe (6 a), and a rubber ring (8) which enables a seal to be formed between the outer wall of the cable (2 c) and the inner wall of the protective pipe (6 a) is fixed in the upper end of the protective pipe (6 a).

2. A high flow amphibious sewage pump according to claim 1, characterised in that the inner wall of said protecting pipe (6 a) and the straight pipe portion (2 a 1) are sealed by means of a sealing ring (9).

3. The high-flow amphibious sewage pump according to claim 2, where in the outer side wall of the straight pipe portion (2 a 1) is provided with an annular groove for placing the sealing ring (9), and the outer side wall of the sealing ring (9) is pressed against the inner side wall of the protecting pipe (6 a).

4. The high-flow amphibious sewage pump according to claim 2 or 3, characterised in that an annular rubber gasket (10) is fixed on the bottom wall of the protecting pipe (6 a), the annular rubber gasket (10) is sleeved outside the straight pipe part (2 a 1), and two end faces of the annular rubber gasket (10) are respectively pressed tightly on the bottom wall of the protecting pipe (6 a) and the upper end cover (2 a).

5. The high-flow amphibious sewage pump according to claim 1, characterised in that the rubber ring (8) is sleeved outside the cable (2 c), and the inner and outer side walls of the rubber ring (8) are respectively pressed against the outer wall of the cable (2 c) and the inner wall of the protecting pipe (6 a).

6. The high-flow amphibious sewage pump according to claim 5, wherein the inner wall of the protecting pipe (6 a) at the upper port is a first conical surface with a diameter gradually increasing from inside to outside, the outer wall of the rubber ring (8) is a second conical surface (8 a) matched with the first conical surface, the first conical surface is attached to the second conical surface (8 a), and a pressing piece for axially compressing the rubber ring (8) is further fixedly arranged on the protecting pipe (6 a).

7. The high-flow amphibious sewage pump according to claim 6, characterised in that the pressing member is an annular gasket (11) sleeved outside the cable (2 c), the annular gasket (11) is fixedly connected with the protective pipe (6 a), and the annular gasket (11) is tightly pressed on the end face of the rubber ring (8).

8. The high flow amphibious sewage pump according to claim 7, characterised in that the annular gasket (11) and the protecting pipe (6 a) are removably attached.

9. The high-flow amphibious sewage pump according to claim 1, characterised in that a press cap (12) is externally screwed on the upper end of the protecting pipe (6 a), an annular retaining shoulder (12 a) is formed on the inner wall of the press cap (12), the annular gasket (11) is positioned between the annular retaining shoulder (12 a) and the rubber ring (8), and the annular retaining shoulder (12 a) is tightly pressed on the annular gasket (11).

10. The high-flow amphibious sewage pump according to claim 7, characterised in that the pressing member comprises a ring of pressing bars evenly distributed along the circumference of the protecting pipe (6 a), one end of each pressing bar is fixedly connected with the protecting pipe (6 a), and the other end of each pressing bar is tightly pressed on the end face of the rubber ring (8).