TWM598892U - Canned magnetic pump with screw-lockable front and rear covers - Google Patents

Abstract

A canned magnetic pump with screw-lockable front and rear covers, comprising a base made of plastic material, a motor unit installed inside the base, an impeller driven by the motor unit, and a cover arranged outside the impeller The front cover, a plurality of first screws, a rear cover for positioning the motor unit relative to the base, and a plurality of second screws. The base includes a main plate and a plurality of second screws embedded in the main plate. A nut and a plurality of second nut caps are respectively passed through the plurality of first locking holes of the front cover by the first screws and are screwed into the first nut caps, and the front cover can be locked to the base Seat, the second screws are respectively passed through the second locking holes of the back cover and screwed into the second nut caps, the back cover can be locked to the base, which can achieve stable locking purpose.

Description

Canned magnetic pump with screw-lockable front and rear covers

The new model relates to a canned magnetic pump, in particular to a canned magnetic pump with screw-lockable front and rear covers.

There is a magnetic canned pump (Taiwan Certificate No. I441984 Patent Case), which contains a pump front cover, a tripod, an impeller, a rear cover, a fixed shaft and a canned motor. The motor rotor is composed of a motor middle frame, a motor rear frame, and a motor rotor. The motor rotor is covered by a cup-shaped rear cover, and a flange at the front end of the rear cover is used to connect the pump front cover and Although the flange of the middle frame of the canned motor can prevent corrosive liquid from leaking into the back cover, if the middle frame of the motor is made of metal material, the middle frame of the motor is exposed to the chemical liquid of strong acid and alkali. Function, susceptible to corrosion. If the middle frame of the motor is made of plastic material, when the front cover of the pump and the rear frame of the motor are locked on both sides of the middle frame of the motor with most screws, the locking strength of the screws and the middle frame of the motor is stronger Weak, it may loosen due to the vibration generated by the motor, and cause the corrosive liquid to be pumped to leak.

Therefore, the purpose of the present invention is to provide a canned magnetic pump with screw-lockable front and rear covers that can solve the existing deficiency.

Therefore, the canned magnetic pump with screw-lockable front and rear covers includes a base, a motor unit, an impeller, a front cover, a plurality of first screws, a rear cover and a plurality of second screws. The base adopts It is made of plastic material and includes a hollow ring-shaped main plate, most of the first nut embedded in the main plate, and most of the second nut embedded in the main plate. The main The disc has a first side surface and a second side surface opposite to the first side surface along an axis. The first nut caps are adjacent to the first side surface and are arranged at intervals around the axis, and each has a substantial The first screw holes parallel to the axis, the second nut caps are adjacent to the second side surface and are arranged at intervals around the axis, and each has a second screw hole substantially parallel to the axis, and the motor unit is installed Inside the base, the impeller is driven by the motor unit and corresponds to the first side surface. The front cover is positioned relative to the first side surface of the main disc member and is covered outside the impeller, and has a plurality of surrounding areas. The axes are arranged at intervals and respectively correspond to the first lock holes of the first screw holes. The first screws respectively pass through the first lock holes and are screwed to the first screw holes, and the front cover Locked to the base, the back cover is positioned relative to the second side surface of the main plate and the motor unit is positioned relative to the base, and has a plurality of spaces arranged around the axis and corresponding to the The second locking holes of the second screw holes respectively pass through the second locking holes and are screw-locked to the second screw holes, and the rear cover is locked to the base.

The effect of the present invention is that the plastic material of the base can be used to produce strong acid and strong alkali resistance, and the first nut and the second nut are embedded in the main plate to strengthen the By equalizing the locking strength of the first screw and the second screw, when the motor unit is in operation, the first screw and the second screw can be prevented from loosening, and the corrosive liquid pumped can not leak.

1 to 3, an embodiment of the new canned magnetic pump with front and rear cover screw-lockable includes a base 10, a positioning seat 20, a motor unit 30, an impeller 40, a front cover 50, and a plurality of The first screw 60, a back cover 70 and a plurality of second screws 80.

With reference to Figures 4 and 5, the base 10 is made of plastic material (this embodiment can be made of engineering plastic material with acid and alkali resistance, such as PP, GFRPP, PVDF, CFRETFE, etc.), and has a surrounding An axis L can define a main plate member 11 in a hollow ring shape, a side cover member 12 connected to the main plate member 11 along the axis L, and a plurality of first screws embedded in the main plate member 11 The cap 13, and most of the second nut 14 embedded in the main plate 11, the main plate 11 has a first side surface 111 intersecting the axis L, and a side surface opposite to the first side along the axis L The second side 112 of the 111, and the side cover 12 is connected to the second side 112. The first screw caps 13 are adjacent to the first side surface 111 and are arranged at intervals around the axis L. Each first screw cap 13 extends along a center line L1 substantially parallel to the axis L. Each first screw cap 13 The outer contour of 13 is in a step shape, and each has a first flange 131 arranged at intervals along the center line L1, a first middle section 132 connected between the first flanges 131, and a first middle section 132 along the center The first screw hole 133 is provided on the line L1, the outer diameter of the first middle section 132 is smaller than the outer diameter of the first flanges 131, and the cross section of the first flanges 131 perpendicular to the center line L1 is non-circular ( The present embodiment has a hexagonal shape), each first nut 13 is located between the first side surface 111 and the second side surface 112, and the first side surface 111 has a plurality of connecting holes respectively connected to the first screw holes 133 First piercing 113. The second screw caps 14 are adjacent to the second side surface 112 and arranged at intervals around the axis L. Each second screw cap 14 also extends along a center line L1 substantially parallel to the axis L. Each second screw cap 14 The outer contour of the cap 14 is in a step shape, and each has a second flange 141 arranged at intervals along the center line L1, a second middle section 142 connected between the second flanges 141, and a The second screw hole 143 is provided on the center line L1, the outer diameter of the second middle section 142 is smaller than the outer diameter of the second flanges 141, and the cross section of the second flanges 141 perpendicular to the center line L1 is non-circular (This embodiment has a hexagonal shape). Each second nut 14 is located between the first side surface 111 and the second side surface 112, and the second side surface 112 has a plurality of second screw holes 143 respectively connected to each other. The second perforation 114.

The positioning seat 20 is made of a metal material and is made into a hollow cylindrical shape and is nested inside the side cover 12 of the base 10. The positioning seat 20 has a plurality of spaces arranged around the axis L and respectively corresponding to the second screw holes 143 and the through holes 21 of the second through holes 114.

The motor unit 30 is installed inside the base 10 and the positioning seat 20. The motor unit 30 of this embodiment adopts a canned motor, and since it is not the focus of the present invention, the internal structure is not detailed.

The impeller 40 is driven by the motor unit 30 and corresponds to the first side surface 111 of the main plate 11.

The front cover 50 is installed on the first side surface 111 of the main disc 11, and is arranged outside the impeller 40, and has a plurality of first holes arranged at intervals around the axis L and corresponding to the first screw holes 133, respectively. Keyhole 51.

The first screws 60 respectively pass through the first locking holes 51 and are screwed to the first screw holes 133 to lock the front cover 50 to the base 10.

The back cover 70 is positioned relative to the second side 112 of the main plate 11 and the side cover 12 and enables the motor unit 30 to be positioned relative to the base 10, and has a plurality of spaces arranged around the axis L and The second locking holes 71 corresponding to the second screw holes 143 respectively.

The second screws 80 respectively pass through the second locking holes 71 and the through holes 21 and are screwed to the second screw holes 143.

In order to further understand the effects of the cooperation of the various components of the present invention, the technical means used, and the expected effects, the following will be explained again, and it is believed that a deeper and specific understanding of the present invention can be obtained from this.

As shown in Figures 3 to 5, when the overall assembly is completed, the front cover 50 is locked to the base 10 through the first screws 60, and the back cover 70 is locked to the base 10 through the second screws 80. Base 10.

And even if the base 10 is made of engineering plastic material with acid and alkali resistance, the first nut 13 and the second nut 14 are embedded in the main plate 11, and the first The outer contours of a nut 13 and the second nut 14 are step-shaped, so the first nut 13 and the second nut 14 can be positioned relative to the base 10 along their own center line L1 , The cross-sections of the first flanges 131 and the second flanges 141 perpendicular to the center line L1 are non-circular, so the first nut 13 and the second nut 14 can prevent surrounding The center line L1 of itself rotates and can be positioned relative to the base 10.

Therefore, in the present invention, the base 10 is made of plastic material to produce strong acid and alkali resistance, and the first nut 13 and the second nut 14 are embedded in the main plate 11, so that Strengthen the locking strength of the first screws 60 and the second screws 80, and prevent the first screws 13 and the second screws 14 from loosening when the motor unit 30 is operating, and ensure the corrosive liquid pumped Does not leak.

In summary, the new canned magnetic pump with screw-lockable front and rear covers has a simple overall structure, easy manufacture and assembly, and can indeed achieve the purpose of cost innovation.

However, the above are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

10: Pedestal 11: Main disk 111: first side 112: second side 113: First Piercing 114: second piercing 12: Side cover 13: The first nut 131: First flange 132: The first middle section 133: first screw hole 14: The second nut 141: second flange 142: second middle section 143: second screw hole 20: positioning seat 21: Through hole 30: Motor unit 40: impeller 50: front cover 51: The first keyhole 60: The first screw 70: back cover 71: second keyhole 80: second screw L: axis L1: Centerline

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, among which: Figure 1 is a three-dimensional assembly view of an embodiment of the new canned magnetic pump with screw-lockable front and rear covers; Figure 2 is a perspective exploded view of the embodiment; Figure 3 is a perspective sectional view of the embodiment; Figure 4 is an enlarged schematic view of a part of Figure 3; and Fig. 5 is a plan sectional view of the embodiment.

10: Pedestal

11: Main disk

12: Side cover

13: The first nut

14: The second nut

20: positioning seat

21: Through hole

30: Motor unit

40: impeller

50: front cover

51: The first keyhole

60: The first screw

70: back cover

71: second keyhole

80: second screw

L: axis

L1: Centerline

Claims (4)

A canned magnetic pump with screw-lockable front and rear covers, including: A base is made of plastic material, and includes a hollow ring-shaped main plate, most of the first nuts embedded in the main plate, and most of the second ones embedded in the main plate. Nuts, the main plate member has a first side surface and a second side surface opposite to the first side surface along an axis, the first nuts are adjacent to the first side surface and are arranged at intervals around the axis, Each has a first screw hole substantially parallel to the axis, the second nut caps are adjacent to the second side surface and are arranged at intervals around the axis, and each has a second screw hole substantially parallel to the axis ； A motor unit installed inside the base; An impeller driven by the motor unit and corresponding to the first side surface; A front cover, positioned with respect to the first side surface of the main disc member and arranged on the outside of the impeller, and having a plurality of first locking holes arranged at intervals around the axis and corresponding to the first screw holes; A plurality of first screws respectively pass through the first lock holes and are screwed to the first screw holes, and lock the front cover to the base; A back cover is positioned relative to the second side surface of the main plate member and the motor unit is positioned relative to the base, and has a plurality of second screw holes arranged at intervals around the axis and respectively corresponding to the second screw holes Two keyholes; and Most of the second screws respectively pass through the second lock holes and are screwed to the second screw holes, and lock the back cover to the base. The canned magnetic pump with screw-lockable front and rear covers as described in claim 1, further comprising a positioning seat which is installed inside the base and made of a hollow cylinder made of metal material. The positioning seat has a plurality of spaces around the axis. Are arranged and respectively correspond to the through holes of the second screw holes and the second lock holes, the second screws respectively pass through the second lock holes and the through holes and are screwed to the second screws hole. The canned magnetic pump with screw-lockable front and rear covers according to claim 1, wherein each first nut of the base is located between the first side and the second side, and the first side has a plurality of The first through holes respectively connected to the first screw holes, each second nut is between the first side surface and the second side surface, and the second side surface has a plurality of holes connected to the second screw holes. The second perforation. The canned magnetic pump with screw-lockable front and rear covers according to claim 3, wherein each first nut of the base extends along a centerline substantially parallel to the axis, and the outer portion of each first nut The contour is in a step shape, and each has a first flange arranged at intervals along the center line, a first middle section connected between the first flanges, and the outer diameter of the first middle section is smaller than the first flanges. The outer diameter of the flanges, the cross-sections of the first flanges perpendicular to the centerline are non-circular, and each second nut also extends along a centerline substantially parallel to the axis. The outer contour is in a step shape, and each has a second flange arranged at intervals along the center line, and a second middle section connected between the second flanges. The outer diameter of the second middle section is smaller than the first The outer diameters of the two flanges are non-circular in cross section perpendicular to the center line of the second flanges.

Images