阅读说明：本技术 小型潜水电泵 (Small-sized submersible electric pump ) 是由 林德照 陈国荣 黄宇鹏 于 2020-12-22 设计创作，主要内容包括：本发明公开了一种小型潜水电泵,包括固定有出水口、电源线出口、提手的水泵外壳,和电机、水泵叶轮、导流壳、进水底盖,电机侧与水泵外壳之间有过水通道,进水底盖和导流壳与电机下端盖用底盖螺栓密封联接一起,电机的上端盖与电机外壳之间有橡胶密封圈密封,上端盖有电源线密封固定装置和密封测试孔,上端盖端口边缘有带两个螺栓孔的联接凸缘,电机外壳侧面固定有对应的带两个固定螺孔的固定码,上端盖与电机外壳的联接和电机与水泵外壳内顶端的联接分别通过固定螺栓和长螺栓在不同的一对螺栓孔和固定螺孔上联接一起,电源线密封固定装置从电源线出口伸出由密封圈密封,杜绝水进入电机内部；本发明具有能提高电机与水泵外壳联接固定密封和电源线固定密封效果及可预防密封失效的有益效果。(The invention discloses a small-sized submersible electric pump, which comprises a water pump shell, a motor, a water pump impeller, a diversion shell and a water inlet bottom cover, wherein a water passage is arranged between the side of the motor and the water pump shell, the water inlet bottom cover and the diversion shell are hermetically connected with a lower end cover of the motor by a bottom cover bolt, a rubber sealing ring is sealed between an upper end cover of the motor and the motor shell, a power line sealing and fixing device and a sealing test hole are covered at the upper end cover, a connecting flange with two bolt holes is arranged at the edge of an end opening of the upper end cover, a corresponding fixing code with two fixing screw holes is fixed at the side surface of the motor shell, the connection of the upper end cover and the motor shell and the connection of the motor and the top end in the water pump shell are respectively connected together on a pair of different bolt holes and the fixing screw holes by fixing bolts and long bolts, the power line sealing, water is prevented from entering the motor; the invention has the advantages of improving the effects of connecting, fixing and sealing the motor and the water pump shell and fixing and sealing the power line and preventing sealing failure.)

1. A small submersible electric pump comprises a water pump shell (1), a motor (2), a water pump impeller (3), a diversion shell (4) and a water inlet bottom cover (5), wherein the motor (2), the water pump impeller (3), the diversion shell (4) and a water inlet bottom cover (5) are installed in the water pump shell (1), the upper end of the motor (2) is fixed at the top end in the water pump shell (1), the lower end of a motor output shaft is connected with the water pump impeller (3), a water passing channel (6) is arranged between the side of the motor (2) and the water pump shell (1), the water inlet bottom cover (5), the diversion shell (4) and the lower end cover of the motor (2) are connected together in a sealing mode through bottom cover bolts, the upper end of the motor (2) is provided with an upper end cover (22) which is connected with the motor shell (21) in a sealing and embedding mode, and a rubber sealing ring (23) is arranged between the, this upper end cover (22) end face seal is fixed with power cord seal fixing device (24) and sealed test hole (27), its characterized in that: the edge of the port of the upper end cover (22) is provided with a plurality of connecting flanges (25) which are uniformly distributed on the circumference, the side surface of the motor shell (21) is fixed with fixing codes (26) corresponding to the positions and the number of the connecting flanges (25), the connecting flanges (25) are provided with two bolt holes (251), the fixing codes (26) are provided with two fixing screw holes (261) corresponding to the positions of the bolt holes (251) one by one, the upper end cover (22) and the motor shell (21) connect and fix the connecting flanges (25) and the fixing codes (26) together through one bolt hole (251) and the fixing screw hole (261) by fixing bolts, the other bolt hole (251) and the fixing screw hole (261) of the connecting flanges (25) and the fixing codes (26) are connected together by long bolts extending into the water pump shell (1) from the top, and the upper end part of the motor (2) is fixed at the top end in the water pump shell (, and the power cord sealing and fixing device (24) extends out of the power cord outlet (12) and is sealed through a sealing ring (121).

2. The miniature submersible electric pump according to claim 1, wherein: the power cord sealing and fixing device (24) comprises a sealing nut (241), a sealing bolt (242) and a rubber wire protecting sleeve (243), wherein the sealing nut (241) is fixed with the end face of the upper end cover (22) in a sealing mode, the bottom of a central screw hole of the sealing nut (241) is provided with a conical sealing surface (245), the rubber wire protecting sleeve (243) is in the shape of a hollow arrow sagittal arrow, an arrow head is a conical sealing head (246) and is matched with the conical sealing surface (245), an arrow handle is a conical sealing column (247), the sealing bolt (242) is provided with a conical central hole (248) matched with the outer surface of the conical sealing column (247), the rubber wire protecting sleeve (243) is placed in the sealing nut (241), the conical sealing head (246) is matched with the conical sealing surface (245), the conical central hole (248) of the sealing bolt (242) is sleeved on the conical sealing column (247) and is screwed in the sealing, the end part of the sealing bolt (242) and the tapered central hole (248) respectively press the bottom end surface of the conical sealing head (246) and the outer surface of the conical sealing column (247), and the rubber wire protecting sleeve (243) is compressed to clamp, seal and fix the power supply lead wire.

3. A miniature submersible electric pump according to claim 2 wherein: a protective washer (244) is also arranged between the end of the sealing bolt (242) and the bottom end face of the conical sealing head (246).

4. A miniature submersible electric pump according to claim 1 or 2, wherein: the two power line sealing and fixing devices (24) are used for fixing a power supply outgoing line (7) and a floating ball water level switch outgoing line (8) respectively, the number of the power line outlets (12) is also two, and the two power line sealing and fixing devices (24) extend out of the two power line outlets (12) respectively.

5. The miniature submersible electric pump according to claim 1, wherein: a power cord outlet clamp (9) is fixed on the side edge of the handle (13).

6. The miniature submersible electric pump according to claim 1, wherein: a floating ball water level switch leading-out wire clamp (10) is fixed on the side edge of the handle (13).

7. The miniature submersible electric pump according to claim 6, wherein: the floating ball water level switch lead-out wire clamp code (10) is a rotary type clamp code and comprises two mutually symmetrical clamping arms (101), one ends of the two clamping arms (101) are fixed on a lifting handle (13), the other ends of the two clamping arms are provided with holding wire clamping mouths (102), when the two clamping arms (101) are held together through bolts (103) and nuts (104) arranged at the waist parts of the clamping arms (101), the holding wire clamping mouths (102) clamp a floating ball water level switch lead-out wire (8), the floating ball water level switch lead-out wire clamp code (10) further comprises a pin (105) which is installed on the lifting handle (13) and can movably rotate, and the tail end of the pin (105) is clamped together by the two clamping arms (101) and movably connected with the side edges of the lifting handle (13).

8. The miniature submersible electric pump according to claim 7, wherein: the afterbody position of pin (105) has annular (106), two arm lock (101) symmetry parts, every arm lock (101) comprises cuboid arm (107) and arc clamp portion (108), wherein cuboid arm (107) one side has semicylindrical shaft hole (109), half ring flange (110) have at the middle part of this semicylindrical shaft hole (109) inner wall, bolt (103) and nut (104) couple the position that is close to arc clamp portion (108) on cuboid arm (107), when two arm lock (101) merge together, the afterbody of pin (105) is embraced in two semicylindrical shaft hole (109), during two half ring flange (110) merge imbed annular (106) together, it is gapped between the tip that two arc clamp portions (108) embrace, form open-ended embrace and press from both sides line mouth (102).

9. The miniature submersible electric pump according to claim 7, wherein: the connecting part of the arc-shaped clamping part (108) of the clamping arm (101) and the rectangular-parallelepiped arm part (107) has elasticity.

Technical Field

The invention relates to a small submersible electric pump for drainage irrigation and cultivation water circulation.

Background

In the prior art, the main structure of the small-sized submersible electric pump comprises a water pump shell, a motor, a water pump impeller, a diversion shell and a water inlet bottom cover, wherein the motor, the water pump impeller, the diversion shell and the water inlet bottom cover are arranged in the water pump shell, the upper end of the water pump shell is provided with a water outlet, a power cord outlet and a handle, the upper end of the motor extends into an inner bearing seat of the upper end cover of the motor from the upper end of the water pump shell by a long bolt and is tightly fixed at the top end in the water pump shell, a water passing channel is arranged between the motor side and the water pump shell, the water inlet bottom cover and the diversion shell are hermetically connected with the lower end cover of the motor by a bottom cover bolt, a motor power supply lead-out wire is led out from the power cord outlet after being sleeved with a rubber wire protecting sleeve, the rubber wire protecting sleeve is pressed at the top, the rubber wire sheath is pressed by the upper end cover of the motor to be sealed at the top end in the shell of the water pump. After the small submersible pump is submerged, water is sucked into the water inlet bottom cover by the motor driven pump impeller and flows through the diversion shell to the water passing channel, and then is discharged from the water outlet at the upper end of the water pump shell. The small submersible pump has the biggest problem of insufficient sealing, the positions of the top end in the water pump shell and the upper end of a motor are fixedly connected and sealed by a rubber sealing ring on a long bolt, a motor power supply leading-out wire and a floating ball water level switch leading-out wire are tightly pressed on the top end in the water pump shell by an upper end cover of the motor by a plurality of fastening screws by a rubber wire protecting sleeve, the sealing is kept by the fastening force of the fastening screws, however, when the small submersible pump is produced in batches, if the fastening screws are fastened to be unbalanced, the sealing pressure is unbalanced, the sealing effect is easy to generate and is not tight, the water leakage phenomenon occurs after long use time in the future, meanwhile, when the rubber sealing ring or the rubber wire protecting sleeve loses elasticity due to aging and is under the reaction effect of the gravity of the motor, the sealing pressure is reduced and even loosened and fails, and in the daily use process, the power supply lead-out wire is often utilized and is lifted up the water pump, or the curved lead-out wire of floater water level switch constantly going up and down, all probably causes the rubber protecting wire cover damaged, and under outside water pressure, inside water will get into the motor from rubber seal or rubber protecting wire cover position, causes motor trouble easily, so in order to guarantee sealed effect, extension product life need do further improvement on seal structure and the sealed inefficacy that prevents.

Disclosure of Invention

The invention aims to solve the technical problem of providing a small submersible electric pump which can improve the effects of connecting, fixing and sealing a motor and a water pump shell and fixing and sealing a power line and can prevent sealing failure.

In order to solve the technical problems, the technical scheme of the small submersible electric pump is as follows: the water pump comprises a water pump shell, a motor, a water pump impeller, a diversion shell and a water inlet bottom cover, wherein the motor, the water pump impeller, the diversion shell and the water inlet bottom cover are installed in the water pump shell, a water outlet, a power line outlet and a handle are arranged at the upper end of the water pump shell, the upper end of the motor is fixed at the inner top end of the water pump shell, a motor output shaft is connected with the water pump impeller at the lower end, a water passing channel is arranged between the motor side and the water pump shell, the water inlet bottom cover, the diversion shell and the lower end cover of the motor are connected together in a sealing mode through bottom cover bolts, the upper end of the motor is provided with an upper end cover which is embedded and connected with the motor shell in: the edge of the end opening of the upper end cover is provided with a plurality of connecting flanges which are uniformly distributed on the circumference, the side surface of the motor shell is fixed with fixing codes corresponding to the positions and the number of the connecting flanges, the connecting flanges are provided with two bolt holes, the fixing codes are provided with two fixing screw holes corresponding to the positions of the bolt holes one by one, the upper end cover and the motor shell connect and fix one of the connecting flanges and the fixing codes with the fixing screw holes through the fixing bolts, the other bolt hole and the fixing screw hole of the connecting flanges and the fixing codes are connected together by a long bolt extending from the top of the water pump shell, the upper end part of the motor is fixed at the top end in the water pump shell, and the power line sealing and fixing device extends out from the power line outlet and is.

One of the preferred technical schemes of the invention is as follows: the power line sealing and fixing device comprises a sealing nut and a sealing bolt which are sealed and fixed with the end surface of the upper end cover and a rubber wire protecting sleeve, wherein the bottom of the central screw hole of the sealing nut is provided with a conical sealing surface, the rubber wire sheath is in a hollow arrow sagittal shape, the arrow is a conical sealing head, matched with the conical sealing surface, the arrow handle is a conical sealing column, the sealing bolt is provided with a conical central hole matched with the outer surface of the conical sealing column, the rubber wire protecting sleeve is arranged in the sealing nut, the conical sealing head is matched with the conical sealing surface, the conical central hole of the sealing bolt is sleeved on the conical sealing column and screwed in the sealing nut, the end part and the conical central hole of the sealing bolt respectively press the end surface of the bottom of the conical sealing head and the outer surface of the conical sealing column, and the rubber wire protecting sleeve is compressed to clamp, seal and fix the power supply lead-out wire.

The second preferred technical scheme of the invention is as follows: and a protective gasket is arranged between the end part of the sealing bolt and the end surface of the bottom of the conical sealing head.

The third preferred technical scheme of the invention is as follows: the two power line sealing and fixing devices are used for fixing a power supply outgoing line and a floating ball water level switch outgoing line respectively, the number of power line outlets is also two, and the two power line sealing and fixing devices extend out of the two power line outlets respectively.

The fourth preferred technical scheme of the invention is as follows: and a power line outlet clamp code is fixed on the side edge of the handle.

The fifth preferred technical scheme of the invention is as follows: and a floating ball water level switch leading-out wire clamp code is fixed on the side edge of the handle.

The sixth preferred technical scheme of the invention is as follows: the floating ball water level switch outgoing line clamp code is a rotary type clamp code and comprises two mutually symmetrical clamping arms, one ends of the two clamping arms are fixed on a handle, the other ends of the two clamping arms are provided with holding wire clamping mouths, the holding wire clamping mouths clamp the floating ball water level switch outgoing line when the two clamping arms are held together through bolts and nuts arranged at the waist parts of the clamping arms, the floating ball water level switch outgoing line clamp code further comprises a pin which is installed on the handle and can rotate movably, and the floating ball water level switch outgoing line clamp code is movably connected with the side edge of the handle through the tail end of the pin which is clamped by the two clamping arms together.

The seventh preferred technical scheme of the invention is as follows: the afterbody position of pin has the annular, two arm lock symmetries part, and every arm lock comprises cuboid arm and arc clamp part, and wherein cuboid arm one side has the semi-cylindrical shaft hole, has the semi-ring flange at the middle part of this semi-cylindrical shaft hole inner wall, and the bolt and nut hookup is close to the position of arc clamp part on the cuboid arm, and when two arm lock merge together, the afterbody of pin is embraced in two semi-cylindrical shaft holes, and two semi-ring flanges merge and imbed the annular together, and it is gapped between the tip that two arc clamp part are embraced, forms open-ended and embraces the double-layered line mouth.

The eighth preferred technical proposal of the invention is that: the connecting part of the arc-shaped clamping part and the cuboid arm part of the clamping arm has elasticity.

The invention has the beneficial effects that: the upper end part of the motor does not extend into the bearing seat of the upper end cover of the motor from the upper end of the water pump shell by a long bolt to be fastened and fixed at the top end in the water pump shell, but the connecting flange arranged at the edge of the port of the upper end cover of the motor is connected with the fixing code fixed on the side surface of the motor shell by a fixing bolt for independent fixation, and then the other long bolt extends into the connecting flange and the fixing code from the top of the water pump shell to lift the whole motor to be pressed on the top end in the water pump shell for fixation, so that water can be prevented from entering the motor even if the bolt hole at the top of the water pump; meanwhile, the power line sealing and fixing device which is sealed and fixed on the upper end cover is further improved, the sealing nut, the sealing bolt and the rubber wire protecting sleeve are used together to make the rubber wire protecting sleeve press, seal and fix the power lead-out wire and the floating ball water level switch lead-out wire by using the conical sealing surface, the sealing area is increased, the protection of the power lead-out wire and the floating ball water level switch lead-out wire root is enhanced, meanwhile, the power line sealing and fixing device extends out from the power line outlet and is sealed by the sealing ring, the chance that water enters the motor from the power line outlet is greatly reduced, the chance that the power lead-out wire and the floating ball water level switch lead-out wire root are damaged is also greatly reduced, in addition, a power line lead-out wire clamp code is arranged on a handle on the water pump shell, the power lead-out wire is clamped and fixed, and, when the water pump is provided with the floating ball water level switch, the water pump is sealed and fixed through the power line sealing and fixing device, meanwhile, a floating ball water level switch leading-out wire clamp code is arranged on a handle on the water pump shell to clamp and fix the floating ball water level switch leading-out wire, and the floating ball moves up and down along with the water level, so that the floating ball water level switch leading-out wire clamp code is improved into a rotatable clamp code, the possibility of water leakage and short circuit caused by fatigue damage of the floating ball water level switch leading-out wire is greatly reduced, and the water pump has the beneficial effects of improving the connection and fixed sealing effect of the motor and the water pump shell and the fixed.

Drawings

The small submersible electric pump of the present invention is described in more detail below with reference to the accompanying drawings.

Figure 1 is a sectional view of a small submersible electric pump according to the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a sectional view of the upper end cap of the motor in the miniature submersible electric pump of the present invention.

Fig. 4 is a left side view of fig. 3.

Fig. 5 is a sectional view of the motor casing of the miniature submersible electric pump according to the present invention.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a sectional view of the water pump casing in the miniature submersible electric pump of the present invention.

Fig. 8 is a top view of fig. 7.

Fig. 9 is a sectional view of a gland nut of the power cord sealing and fixing device in the miniature submersible electric pump of the present invention.

Fig. 10 is a sectional view of a seal bolt of the power cord seal fixing device in the miniature submersible electric pump of the present invention.

Fig. 11 is a top view of fig. 10.

Fig. 12 is a sectional view of a rubber grommet of a power cord sealing and fixing device in the miniature submersible electric pump of the present invention.

Fig. 13 is a sectional view showing the structure in which the power cord sealing and fixing device of the miniature submersible electric pump of the present invention is fixed on the upper end cover of the motor.

Fig. 14 is an enlarged view of a portion a in fig. 1.

Fig. 15 is an enlarged view of a portion B in fig. 2.

Fig. 16 is a structural diagram of a outlet clamp of a float water level switch in the small submersible electric pump.

Fig. 17 is a top view of fig. 16.

Fig. 18 is a bottom view of fig. 16.

Fig. 19 is a left side view of fig. 16.

Fig. 20 is a right side view of fig. 16.

Fig. 21 is a front perspective view of fig. 16.

Fig. 22 is an inverted perspective view of fig. 16.

Fig. 23 is a sectional view of fig. 16.

FIG. 24 is a sectional view of the outlet clamp of the float water level switch of the submersible electric pump according to the present invention, which is installed on the handle to clamp the outlet of the float water level switch.

FIG. 25 is a diagram of a clamp arm structure of a lead-out wire clamp code of a float water level switch in the small submersible electric pump of the present invention.

Fig. 26 is a sectional view taken along line C-C of fig. 25.

Fig. 27 is a top view of fig. 25.

Fig. 28 is a pin structure diagram of a outlet clamp of a float water level switch in the small submersible electric pump.

FIG. 29 is a reference diagram showing the state of a floating ball falling when a floating ball water level switch outgoing line clamp code is installed on a handle to clamp the floating ball water level switch outgoing line in the small submersible electric pump.

FIG. 30 is a reference diagram showing the state of the floating ball rising when the outlet clamp of the float water level switch of the miniature submersible electric pump of the present invention is installed on the handle to clamp the outlet of the float water level switch.

Shown in the figure: the water pump comprises a water pump shell 1, a water outlet 11, a power cord outlet 12, a sealing ring 121, a handle 13, a floating ball 14, a motor 2, a motor shell 21, an upper end cover 22, a rubber sealing ring 23, a power cord sealing and fixing device 24, a sealing nut 241, a sealing bolt 242, a rubber wire protecting sleeve 243, a protective gasket 244, a conical sealing surface 245, a conical sealing head 246, a conical sealing column 247, a conical central hole 248, a connecting flange 25, a bolt hole 251, a fixing code 26, a fixing screw hole 261, a sealing test hole 27, a water pump impeller 3, a flow guiding shell 4, a water inlet bottom cover 5, a water passing channel 6, a power supply outgoing line 7, a floating ball water level switch outgoing line 8, a power cord outgoing line clamp code 9, a floating ball water level switch outgoing line clamp code 10, a clamp arm 101, a clasping clamp wire nozzle 102, a bolt 103, a nut 104, a pin 105, a, a half-ring flange 110.

Detailed Description

As shown in fig. 1 to 14, the small submersible electric pump of the present invention is implemented as follows: the water pump comprises a water pump shell 1, a motor 2, a water pump impeller 3, a guide shell 4 and a water inlet bottom cover 5, wherein the motor 2, the water pump impeller 3, the guide shell 4 and a water inlet bottom cover 5 are arranged in the water pump shell 1, a water outlet 11, a power cord outlet 12 and a handle 13 are arranged at the upper end of the water pump shell 1, the upper end of the motor 2 is fixed at the top end in the water pump shell 1, the lower end of a motor output shaft is connected with the water pump impeller 3, a water passing channel 6 is arranged between the side of the motor 2 and the water pump shell 1, the water inlet bottom cover 5 and the guide shell 4 are connected with the lower end cover of the motor 2 in a sealing way by bottom cover bolts, the upper end of the motor 2 is provided with an upper end cover 22 which is embedded and connected with the motor shell 21 in a sealing way, a rubber sealing ring 23 is arranged between the upper end cover 22 and the motor shell 21, the end face of the upper end cover 22 is, the connecting flange 25 is provided with two bolt holes 251, the fixed code 26 is provided with two fixing screw holes 261 corresponding to the positions of the bolt holes 251 in a one-to-one manner, the upper end cover 22 and the motor shell 21 are fixedly connected together by fixing bolts through the connecting flange 25 and one bolt hole 251 and the fixing screw hole 261 of the fixed code 26, the other bolt hole 251 and the fixing screw hole 261 of the connecting flange 25 and the fixed code 26 are connected together by long bolts extending from the top of the water pump shell 1, the upper end part of the motor 2 is fixed at the inner top end of the water pump shell 1, and the power line sealing and fixing device 24 extends out of the power line outlet 12 and is sealed through a sealing ring 121. In this embodiment, the water outlet 11 and the handle 13 are welded on the water pump housing 1, the upper end cover 22 is formed by punching, the edge of the port extends out of the connecting flange 25, the number of the connecting flanges 25 can be three or more, so as to be capable of being fastened and sealed, the fixed code 26 is welded on the side surface of the motor housing 21, the long bolt extending into the water pump housing 1 from the top and connected with the connecting flange 25 and the fixed code 26 is added with the sealing washer to be sealed at the bolt head, the water pump housing 1, the water outlet 11, the handle 13, the motor housing 21, the upper end cover 22, the fixed code 26, the water inlet bottom cover 5 and the like can be made of stainless steel materials, and the water.

As shown in fig. 1 to 4 and 9 to 14, one of the preferred embodiments of the present invention is: the power cord sealing and fixing device 24 comprises a sealing nut 241 and a sealing bolt 242 which are fixed with the end face of the upper end cover 22 in a sealing way, and a rubber cord protecting sleeve 243, wherein the bottom of a central screw hole of the sealing nut 241 is provided with a conical sealing surface 245, the rubber cord protecting sleeve 243 is in a hollow arrow-shaped sagittal shape, an arrow head is a conical sealing head 246 and is matched with the conical sealing surface 245, an arrow handle is a conical sealing column 247, the sealing bolt 242 is provided with a conical central hole 248 matched with the outer surface of the conical sealing column 247, the rubber cord protecting sleeve 243 is arranged in the sealing nut 241, the conical sealing head 246 is matched with the conical sealing surface 245, the conical central hole 248 of the sealing bolt 242 is sleeved on the conical sealing column 247 and is screwed in the sealing nut 241, so that the end part of the sealing bolt 242 and the conical central hole 248 respectively press against the bottom end face of the conical, the rubber grommet 243 is compressed to clamp, seal and fix the power lead-out wire. In this embodiment, the sealing nut 241 is welded on the end face of the upper end cap 22 in a sealing manner, the diameter of the center hole of the rubber wire sheath 243 is in transition fit with the outer diameter of the power line, and the sealing nut 241 and the sealing bolt 242 can be made of stainless steel.

As shown in fig. 1, 13 to 14, the second preferred embodiment of the present invention is: a protective washer 244 is also provided between the end of the seal bolt 242 and the bottom end face of the conical seal head 246. In this embodiment, a metal or plastic washer may be used as the protective washer 244 to prevent damage to the bottom end face of the conical sealing head 246 when the sealing bolt 242 is spun down.

As shown in fig. 1 to 4, 8, and 13 to 14, the third preferred embodiment of the present invention is: the two power line sealing and fixing devices 24 are used for fixing the power supply leading-out wire 7 and the floating ball water level switch leading-out wire 8 respectively, the number of the power line outlets 12 is also two, and the two power line sealing and fixing devices 24 extend out of the two power line outlets 12 respectively. In this embodiment, the two power line sealing and fixing devices 24 are disposed at two symmetrical positions, and are as close as possible to the two sides of the handle 13, so that the outgoing lines can be conveniently fixed on the two sides of the handle 13.

As shown in fig. 2, the fourth preferred embodiment of the present invention is: a power cord outlet clamp 9 is fixed on the side edge of the handle 13. In this embodiment, this power cord outlet wire clamp 9 adopts two fixed plate waists to add bolt and nut, and while cliping handle 13 side, cliping the power cord outlet wire, the side of handle 13 can open a breach and be cliped the location by power cord outlet wire clamp 9, and power cord outlet wire clamp 9's two fixed plates cliping power cord outlet wire clamp can have the semicircular clip mouth on one side, clip the power cord outlet coil.

As shown in fig. 2 and 15 to 30, the fifth preferred embodiment of the present invention is: a floating ball water level switch leading-out wire clamp 10 is fixed on the side edge of the handle 13. In this embodiment, the floater water level switch outgoing line clamp 10 may be formed by adding bolts and nuts to the waist of two fixing plates, one side of the handle 13 is clamped, the other side of the handle 13 is clamped, a gap may be opened on the side of the handle 13 to be clamped and positioned by the power line outgoing line clamp 9, and the two fixing plates of the power line outgoing line clamp 9 clamp the floater water level switch outgoing line and have a semicircular clamp opening to clamp the floater water level switch outgoing line. Rotary clamp codes may also be used.

As shown in fig. 2 and 15 to 30, the sixth preferred embodiment of the present invention is: the floating ball water level switch outgoing line clamp code 10 is a rotary type clamp code and comprises two mutually symmetrical clamping arms 101, one ends of the two clamping arms 101 are fixed on a handle 13, the other ends of the two clamping arms 101 are provided with holding wire clamping mouths 102, when the two clamping arms 101 are connected in a holding mode through bolts 103 and nuts 104 arranged on the waist portions of the clamping arms 101, the holding wire clamping mouths 102 clamp the floating ball water level switch outgoing lines 8, the floating ball water level switch outgoing line clamp code further comprises a pin 105 which is installed on the handle 13 and can rotate movably, and the floating ball water level switch outgoing line clamp code 10 is movably connected with the side edge of the handle 13 through the tail end of the pin 105 clamped by the two clamping arms 101 together. In this embodiment, as shown in fig. 23, 24 and 29, a pin hole is formed in the handle 13, the pin 105 passes through the pin hole in a clearance fit manner, and the bolts 103 and nuts 104 arranged at the waist of the clamping arms 101 connect the tail ends of the two clamping arms 101 embracing the pin 105 together, as shown in fig. 29 to 30, the floating ball water level switch outgoing line clamp 10 can movably rotate by the pin 15 and can be dragged to rotate and swing by the floating ball water level switch outgoing line 8 along with the lifting of the floating ball 14 water level switch; the invention adds a degree of freedom to the movable joint part of the leading-out wire 8 of the float water level switch to play an auxiliary role, so that the bending amplitude necessary for the action of the float 14 water level switch is greatly reduced when the part of the leading-out wire 8 of the float water level switch close to the fixed position is bent, even if the leading-out wire 8 of the float water level switch is aged and hardened due to long-term immersion in water, the necessary bending amplitude for the action of the float 14 water level switch can be achieved through the rotary swing compensation of the float wire clamp, the fault that the float 14 water level switch does not work due to the fact that the float 14 water level switch does not go up and down is greatly reduced, the failure of the float 14 water level switch is effectively prevented, meanwhile.

As shown in fig. 23 to 28, a seventh preferred embodiment of the present invention is: the afterbody position of pin 105 has annular 106, two arm lock 101 symmetries are separately, every arm lock 101 comprises cuboid arm 107 and arc clamp 108, wherein cuboid arm 107 one side has semi-cylindrical shaft hole 109, the middle part in this semi-cylindrical shaft hole 109 inner wall has semi-ring flange 110, bolt 103 and nut 104 couple on cuboid arm 107 is close to the position of arc clamp 108, when two arm lock 101 merge together, two semi-cylindrical shaft holes 109 embrace the afterbody of pin 105, two semi-ring flanges 110 merge imbed annular 106 together, it is gapped between the tip that two arc clamp 108 embrace, form open-ended embrace and close the clamp line mouth 102. In this embodiment, the two arms 101 are symmetrical to each other, and have the same structure and size, and only a single arm is manufactured by injection molding, the combination of the complete shaft hole of the two semi-cylindrical shaft holes 109 and the tail diameter of the pin 105 can be in transition fit, preferably in clearance fit, the thickness of the semi-ring flange 110 and the width of the ring groove 106 can be in transition fit or clearance fit, preferably in clearance fit, therefore, the assembled outlet clamp 10 of the float level switch can move more flexibly, the clasping and line clamping mouth 102 adopts the arc-shaped clamping part 108 to clasp to form the open clasping and line clamping mouth 102, if the length of the outlet 8 of the float level switch needs to be adjusted, the operation can be carried out without loosening the bolt 103 and the nut 104, the outgoing line 8 of the floating ball water level switch can be adjusted by pulling, and the clip 10 of the outgoing line of the floating ball water level switch automatically keeps a clamping state, so that the operation is very convenient.

As shown in fig. 25 to 27, an eighth preferred embodiment of the present invention is: the connecting part of the arc-shaped clamp part 108 and the rectangular-parallelepiped arm part 107 of the clamp arm 101 has elasticity. In this embodiment, the clasping wire clamping mouth 102 clasped by the arc-shaped clamping part 108 has elasticity, so that the length of the floating ball water level switch outgoing line 8 can be adjusted more easily as required while the floating ball water level switch outgoing line 8 is clamped conveniently. When the injection molding process is selected for manufacturing, the connecting part of the arc-shaped clamp part 108 and the rectangular-solid arm part 107 can also be gradually thinned or thinned, so that the deformation and the elastic capacity of the part are increased.

In the invention, the upper end part of the motor 2 does not extend into the inner bearing seat of the motor upper end cover 22 from the upper end of the water pump shell 1 by a long bolt to be fastened and fixed at the top end in the water pump shell 1, but the connecting flange 25 arranged at the edge of the port of the motor upper end cover 22 and the fixed code 26 fixed on the side surface of the motor shell 21 are connected together by a fixed bolt to be independently fixed, and then the other long bolt extends into the water pump shell 1 from the top part of the water pump shell and is also connected to the connecting flange 25 and the fixed code 26 to lift and jack the whole motor 1 to be fixed at the top end in the water pump shell 1, so that even if the bolt hole at the top part of; meanwhile, the power line sealing and fixing device 24 which is sealed and fixed on the upper end cover 22 is further improved, the sealing nut 241, the sealing bolt 242 and the rubber wire protecting sleeve 243 are used together to utilize a conical sealing surface to enable the rubber wire protecting sleeve 243 to tightly press, seal and fix the power lead-out wire 7 and the floating ball water level switch lead-out wire 8, the sealing area is increased, the protection of the root parts of the power lead-out wire 7 and the floating ball water level switch lead-out wire 8 is enhanced, meanwhile, the power line sealing and fixing device 24 extends out from the power line outlet 12 and is sealed by the sealing ring 121, the chance that water enters the motor from the power line outlet position is greatly reduced, the chance that the root parts of the power lead-out wire 7 and the floating ball water level switch lead-out wire 8 are damaged is also greatly reduced, in addition, the power line lead-out, the invention reduces the chance of water leakage short circuit at the root of the power supply lead-out wire 7 which is directly damaged by being pulled, when the water pump is provided with a floating ball 14 water level switch, the water pump is sealed and fixed by a power supply wire sealing and fixing device 24, meanwhile, a floating ball water level switch lead-out wire clamp code 10 is arranged on a handle 13 on the water pump shell 1, the floating ball water level switch lead-out wire 8 is clamped and fixed, and the floating ball 14 moves up and down along with the water level, the floating ball water level switch lead-out wire clamp code 10 is improved into a rotatable clamp code, thereby greatly reducing the chance of water leakage short circuit caused by fatigue damage of the floating ball water level switch lead-out wire 8, and having the advantages of improving the connection, fixing and sealing effects of the motor and.

The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, as long as the objects of the present invention are implemented by substantially the same means.